LON - CNX

£247 Find Cheap Flights from London to Chiang Mai – Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from London to Chiang Mai departing on 2/9. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
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Everything you should know

Cheapest return fare
£608
Air China
Fri 28/8Mon 7/9
LGW - CNX • 1 stop
Cheapest one-way flight
£247
Typical prices: £273-£362
Air China
Wed 2/9
LGW - CNX • 1 stop
Top airlines
Cheapest • from £609 (return)
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Direct flights
Not available
There are currently no direct flights between London and Chiang Mai. You’ll need at least 1 connection.
Insights
Insights
Insights
Insights
Top stopover airports
Cheapest • Avg £485 (return)
Shortest trip • 14h 30m (one-way)
Insights
Insights
Insights
Insights
When to travel
Cheapest • 35% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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We hope you love your trip to Chiang Mai!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from London to Chiang Mai (LON-CNX)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from London to Chiang Mai that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from London to Chiang Mai

Fri, 28 Aug - Mon, 7 Sep
Multiple Airlines Logo
20:20 - 21:50
LGW
-
CNX
19h 30m
1 stop
Multiple Airlines Logo
06:35 - 06:35
CNX
-
LGW
30h 00m
2 stops
£608Multiple Airlines
Sun, 6 Dec - Sun, 17 Jan
China Eastern Logo
17:00 - 09:05
LGW
-
CNX
33h 05m
2 stops
China Eastern Logo
15:35 - 14:00
CNX
-
LGW
29h 25m
1 stop
£609China Eastern
Sat, 5 Sep - Sat, 19 Sep
Multiple Airlines Logo
09:30 - 19:10
LHR
-
CNX
27h 40m
2 stops
Multiple Airlines Logo
20:00 - 18:45
CNX
-
LHR
28h 45m
2 stops
£609Multiple Airlines
Sun, 6 Dec - Sun, 17 Jan
China Eastern Logo
17:00 - 09:05
LGW
-
CNX
33h 05m
2 stops
China Eastern Logo
15:35 - 14:00
CNX
-
LGW
29h 25m
1 stop
£610China Eastern
Sat, 3 Oct - Sat, 17 Oct
Etihad Airways Logo
21:45 - 11:15
LHR
-
CNX
31h 30m
2 stops
Etihad Airways Logo
20:00 - 18:45
CNX
-
LHR
28h 45m
2 stops
£611Etihad Airways
Fri, 4 Dec - Tue, 19 Jan
Air China Logo
17:40 - 21:50
LHR
-
CNX
21h 10m
1 stop
Air China Logo
23:05 - 15:55
CNX
-
LHR
23h 50m
1 stop
£613Air China
Sat, 14 Nov - Thu, 19 Nov
Air China Logo
20:25 - 21:50
LHR
-
CNX
18h 25m
1 stop
Air China Logo
23:05 - 15:55
CNX
-
LHR
23h 50m
1 stop
£613Air China
Sat, 26 Sep - Sun, 4 Oct
Etihad Airways Logo
21:45 - 09:20
LHR
-
CNX
29h 35m
2 stops
Etihad Airways Logo
20:00 - 15:05
CNX
-
LHR
25h 05m
2 stops
£616Etihad Airways
Wed, 16 Sep - Tue, 27 Oct
SWISS Logo
13:10 - 13:45
LCY
-
CNX
18h 35m
2 stops
SWISS Logo
10:10 - 08:40
CNX
-
LCY
29h 30m
2 stops
£617SWISS
Sat, 19 Sep - Wed, 28 Oct
SWISS Logo
09:00 - 13:45
LCY
-
CNX
22h 45m
2 stops
SWISS Logo
10:10 - 08:40
CNX
-
LCY
29h 30m
2 stops
£643SWISS
Booking Insights

KAYAK’s insights & trends for London to Chiang Mai flights

Get data-powered insights and trends into flights from London to Chiang Mai to help you find the cheapest flights, the best time to fly and much more.

How much is a return flight from London to Chiang Mai?

This analysis is based on the cheapest return trip price found on KAYAK in the last 12 months by searching for a flight from London to Chiang Mai departing in August.

What is the cheapest month to fly from London to Chiang Mai?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from London to Chiang Mai, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from London to Chiang Mai is January, where tickets cost £241 (return) on average. On the other hand, the most expensive months are August and April, where the average cost of round-trip tickets is £449 and £417 respectively.

How far in advance should I book a flight from London to Chiang Mai?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from London to Chiang Mai, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from London to Chiang Mai, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 21 weeks before departure.

Good to know - Cheap tickets from London to Chiang Mai

Low seasonAugust
Cheapest flight£247
Best time to beat the crowds but there is an average 15% increase in price.
Most popular time to fly and prices are also 16% lower on average.
Flight from London Gatwick Airport to Chiang Mai

When to book flights from London to Chiang Mai

Are your dates flexible? Find out the best times to travel from London to Chiang Mai based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from London to Chiang Mai

  • Can I fly non-stop from London to Chiang Mai?

    There are no non-stop flights available from London airports to Chiang Mai International Airport. When you fly with multiple airlines from London Heathrow, your flight will often involve a single stopover in Bangkok. Similarly, when you book with Turkish Airlines from London Gatwick or London Stansted, you will need to make two stopovers before you reach your destination.

  • Is parking available at London airports?

    Both short and long-stay parking is available at all five of London’s major airports. If you are flying to Chiang Mai from Heathrow, you will find short-stay parking directly connected to the airport terminals and a free shuttle service to take you from the long-stay car park to the airport. This shuttle takes around 10min.

  • Is transport available at Chiang Mai Airport?

    There are a number of convenient ways that passengers arriving at Chiang Mai International Airport can travel to the city. Passengers can make use of shuttle minibuses, which are available outside the airport entrance and cost ฿40 (less than £1). The journey to the city centre by bus takes around 30min. Passengers can also take a taxi from the airport. It takes around 10min to reach Chiang Mai city centre by taxi and costs ฿150 (around £3).

  • Is on-site accommodation available at Chiang Mai Airport?

    There are no on-site hotels available inside the airport at Chiang Mai. However, there are plenty of hotels very nearby in the surrounding area. Passengers can choose to stay at hotels such as the 3B Boutique Hotel, which is just a short drive from the airport.

  • Which London airport is recommended for flights to Chiang Mai?

    The vast majority of cheap flights from the UK capital depart from London Heathrow, but you can also get some good deals flying from London Gatwick Airport (LGW). Both have excellent public transport links via direct train and express coach services from Central London.

  • Can I book a car hire at Chiang Mai Airport?

    There’s a car hire centre located in the Arrivals Hall at Chiang Mai International for passengers looking to secure personal transport for their travels around the city. The centre is represented by major providers like SIXT and Avis, as well as local ones such as Thai Rent A Car and Chic Car Rent. Advance bookings are recommended, especially during the winter and spring seasons.

  • What are the visa requirements for flights to Chiang Mai from UK?

    Visa exemptions allow holidaymakers with British passports to stay in Chiang Mai for a maximum of 30 days. All other passport holders should seek advice online or at consular offices regarding visa requirements before booking flights to Chiang Mai from Southampton.

  • Name a few nearby cities within easy reach from Chiang Mai Airport?

    Thai Airways and the low-budget airline ThaiAirAsia offer domestic flights to Bangkok, Krabi and Phuket from Chiang Mai Airport. If you’re thinking about international destinations there are short-haul flights from the northern province to cities such as Luang, Mandalay and Hanoi.

  • What is the cheapest flight from London to Chiang Mai?

    In the last 5 days, the lowest price for a flight from London to Chiang Mai was £247 for a one-way ticket and £608 for a return.

  • Which airports will I be using when flying from London to Chiang Mai?

    On your way to Chiang Mai, you’ll fly out from one of these London airports: London City, London Gatwick, London Heathrow, London Luton, or London Stansted. You’ll be landing at Chiang Mai.

  • Which aircraft models fly most regularly from London to Chiang Mai?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from London to Chiang Mai?

    oneworld, SkyTeam, and Star Alliance are the airline alliances operating flights between London and Chiang Mai, with oneworld being the most commonly used for this route.

  • Which is the best airline for flights from London to Chiang Mai, EVA Air or Singapore Airlines?

    The two airlines most popular with KAYAK users for flights from London to Chiang Mai are EVA Air and Singapore Airlines. With an average price for the route of £774 and an overall rating of 8.5, EVA Air is the most popular choice. Singapore Airlines is also a great choice for the route, with an average price of £751 and an overall rating of 8.2.

  • How does KAYAK find such low prices on flights from London to Chiang Mai?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from London to Chiang Mai.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from London to Chiang Mai?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Chiang Mai from London is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from London to Chiang Mai?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to Chiang Mai with an airline and back to London with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from London to Chiang Mai?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Chiang Mai from London up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from London to Chiang Mai

  • London’s five major airports are all busy international travel hubs. This means there may be long queues at security or at check-in points. To bypass the crowds, passengers flying through London Heathrow, London Gatwick, London Stansted, and London Luton can pay extra to use Fast-Track Check-In options. These cost around £13 at Heathrow and £5 elsewhere. There is no fast-track option available at London City Airport.
  • Passengers flying First or Business Class to Chiang Mai with Turkish Airlines from London Gatwick can pay to use the No1 Lounge located in Gatwick’s South Terminal. The lounge costs between £30-40 for a short stay and offers passengers a relaxing place to unwind before their flight. Food and drinks are also served in this area.
  • Want to exchange or withdraw cash when you arrive at Chiang Mai Airport? International banks offering ATMs and currency exchange services are available throughout Chiang Mai Airport. Passengers arriving at Chiang Mai can make use of the Siam Commercial Bank, which is located at the exit gateway of Arrivals.
  • A medical centre is available inside Chiang Mai Airport for anyone who requires medical treatment or advice on minor ailments when they travel. The medical centre is located inside the walkway, which connects Domestic Terminal 2 with the International Terminal. The pharmacy offers 24h service.
  • Flying with kids? If you’re departing from London Heathrow, you will find a children’s play area in the Terminal 2 Departure Lounge near Gate 16. Nursing facilities and infant changing rooms are also located throughout each of Heathrow’s main departure terminals.
  • Chiang Mai International Airport (CNX) is the major gateway serving the northern region of Thailand with a location approx. 3.1 miles from the city centre. The facility has an International Terminal serving flights from Southampton and is used as a hub by Thai Airways, one of the main providers of flights on this route.
  • Looking for airlines with short turnarounds at connecting airports on flights from Southampton to Chiang Mai? Thai Airways offers a few departures from London Heathrow Airport (LHR) with brief 1h 30min stopovers in Bangkok, while EVA Air has a handful with 3-hour connections from the same location en route to your destination.

Reviews of the top 5 airlines flying from London to Chiang Mai

 
See real verified KAYAK customer reviews for airlines flying from London to Chiang Mai. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from London to Chiang Mai? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.9
Thai AirwaysOverall score based on 409 reviews
8.4Crew
6.9Entertainment
7.7Comfort
7.4Food
7.9Boarding
Airline reviews

We still get drinks and a snack. Love the gift bags too.

10.0 ExcellentTsaav Stuvy, Mar 2026
BKK - UTH
Read more Thai Airways reviews

We still get drinks and a snack. Love the gift bags too.

Excellent airline. The plane was clean and the staff were very attentive

I'm not interested in improving the airline. Therefore, I won't explain this in more detail. Next time I'll try a different one.

The flight (boarding) was delayed by 40-50 minutes and there was very crowed. They need to improve on the timeliness & boarding process. (They asked passenger to board in groups, but the 2nd group was standing there waiting for 20 minutes!). However, services from the crew was very good, also the food was good as well. I also found the legroom was quite comfortable.

Except that our flight was cancelled, by mail, and later moved to 12 hours prior, then the experience was good. In Bangkok we were offered a hotel, it was fine, but would have been nice to know in advance😉

Although booked meal of fruit only The crew had not received this special meal The same happened on my flight Bangkok / CAN The films are so old that best is to use own computer to watch downloads . Serve nuts but they do not warm up . Service is attentive , WC clean

The boarding efficiency was good. A couple of the flight attendants did not seem in the best of moods. Overall it was a good experience.

The flight attendants ignored us several times which was annoying. The sandwich thing wasn't very good but it's only an hour flight, it would have been better to have entertainment over bad food.

Check in was a disaster. 90 minutes and only 2 economy check in desks open. Had to rush to catch the flight.

I couldnt go on this flight and lost all my money over 1,000 UK Pounds as my visa to Myanmar was not accepted :(

The service was better on this flight from the long haul one, but still very poor from The Cathay Pacific of the past.

Seat was very old. Didn’t easily go up and down. Flight Attendent had issues moving the seat. Condition of the seat was ok. Parts were peeling off by the foot area. Food was ok. Ran out of the dish I wanted so got the beef. Beef filet was very tender but the sauce was a little strange. Disembarking was very easy.

My connecting flight was canceled or never existed. My stopover went from 1 hour and a half to 10 hours. It was a long day that I wasn't prepared for and it would have been nice to know that ahead of time. Cathay is great though. Great staff, entertainment and food.

I've stomach problems after 2 hours of flight, Iris, the flight purser not only did her best to make me feel comfortable, she went above and beyond providing pain relievers medicines and ointment. She look and found a doctor passenger on the flight to provide advise. She even report on ground staffs about my condition and provide wheelchair upon arrival. Kudos to her and Cathay Pacific!

Baggage delayed for 2 days and still chasing for reimbursement of basis items. Very horrible customer care service.

As a solo traveller, I always prefer to have an aisle seat, but the flight was so full, there weren’t any available. I understand that the seatbelt sign sometimes has to go on if turbulence is anticipated but after the second food service, it was on continuously for about an hour and a half and there didn’t seem to be any turbulence at all! With seats reclined, my fellow passenger in the aisle seat asleep and the seatbelt sign on I felt very trapped, extremely uncomfortable and in desperate need of the bathroom. The positives were that the staff were very friendly, the entertainment was great and we actually took off on time and arrived in HKG earlier than expected.

Crew experience was more transnational, seats were so close together (LtoR and FtoB) that it was difficult to enjoy much of anything. When the person in front leaned back, there is no space for me. Sadly it was a flight to be endured not experienced.

One of the worst flight in business class by qatar airways and I’m no stranger with qatar airways businesses class, I travelled with the extensively in the past 12 years

Very comfortable flights. Not so many new releases in terms of films.

Everything was good food could be better but ok for economy on my 2nd flight the head ph jack are bad you have to hold pushed in to hear anything but other then that very nice service

Weren’t even given earphones to use the entertainment system

Very friendly and attentive flight attendants, good food service. Seat was comfortable. However, the in flight electronics were poor. The screen froze repeatedly; the controller died; the headphones are a hit or miss; the wifi wasn't usable. Very scarce communication before the flight (no email reminder). Almost impossible to understand in-flight communications (audio was very poor).

Overall, excellent: check-in, boarding, service, and food. The Business Class seating is a little less private and spacious than the world's premier airlines, but still very good for a long haul flight.

On time. Friendly and helpful flight attendants. The plane was clean. Having a wine available would have been nice.

cannot get seat information for LAX to IAH when check in in XI,AN

Nothing to complain of, the only reason I am not giving better marks is that I am used to flying with ANA and they are the top.

Food and service are good. Bathroom was lack of lotions and cleaning. That should be improved.

Food & service very good next I will pick up again

Chinese flight attendants didn't speak english well. They didn't care enough to remember that I (east asian who isn't Chinese) wasn't Chinese and spoke English. Announcement in english on board was poor and I find it very difficult to understand what was announced. Also, a cabin bag allows only 5kg!

The flight is not bad, but the Business Lounge is not big enough for the quantity of people they accept and there is a limited options for food and beverages.

I booked tickets for a family of five and specifically paid extra to select our seats together. We spent nearly $1,000 extra (around $100 per seat) for extra legroom so we could sit near each other. However, despite paying for this, we ended up being separated on the flight. This caused a major issue for our family because my parents do not speak English and rely on me to translate and assist them during the journey. I do not understand why Etihad changed our reserved seats without explanation. I am extremely dissatisfied with this experience. I expect the airline to do better, and I am requesting a full refund for the seat selection fees we paid.

1 hour delay meant missed my connecting flight and 1st day of holiday

We have paid premium price for a business class Cabinet and we have received the old 777 with the following apart business class that is not to standard. It was very disappointing and it’s a very bad reputation for a premium airline company. This aeroplane should be the commission from being as a business class. We will pass this knowledge to our colleagues because the quality of business class in Etihad is not consistent and it is a lucky dip that sometimes you’re getting a good aeroplane and sometimes you’re getting their 30 years old aeroplane. The crew of the aeroplane have apologise and said that they hate this aeroplane and they have complained about it multiple times as well. Obviously Etihad is putting the economy in front of the Customer Experience. For the future we will not take this risk anymore and will fly with established company like emirates.

Etihad Check In counter/Station manager in Heathrow was bothering and not helpful at all. They are rude and not customer oriented

I paid 44 $ for seat upgrade (22D) and my seat was stack in high position for all the 6 hours of flight. I don't recommend the upgrade. I am looking to get my upgrade payment back

Same problem place in the middle so small Im 1,85 m so not good 👍

I am a larger than average person and in my opinion i don't think it's fair to allocate a window seat to anyone who is my size or larger, i was seated between 2 large passengers on a full aircraft. The guy in the window seat also occupied a portion of the middle seat (my seat) which made my experience of flying with etihad very cramped and uncomfortable, i was flying from Abu Dhabi to Bangkok. Had this been a airbus 380 it would have been better as the seats are larger but unfortunately it wasn't so i had to endure the 6+hrs unable to get any rest

The business class experience is fantastic. The crew were polite but often unavailable even when I tried to call them! I even found myself bringing my used dishes and cutlery up to the crew because no one had come to collect it after over an hour.

The staff was very nice and polite but it was very very hot and no ways to have some fresh air. It would be nice to have more time to sleep since it was a night flight

Very very bad service very tight seats never ever flying with Etihad again

I was traveling alone with an infant, so the crew was incredibly helpful. Both the international and subsequent domestic flights were impeccable.

2 parts to the journey. First leg covered in a newer plane with decent staff + POOR FOOD QUALITY but the second half didn’t leave a positive impression at all as the plane itself was an older built and the crew didn’t serve properly. Language is an issue with China Eastern flights as always, but unmotivated crew just makes it even bad.

Better good than most, if not all European airlines. If you’re stuck in an economy seat anyways, China Eastern is a good choice because of shorter flight time, being able to overfly Russia

Reasonable. What they offer during the flight is not great, but the crew is polite and try to compensate it.

Lost Baggage - very frustrated…learned that bag was never put on plane.

Great staff and food. Seats pretty uncomfortable but plenty of legroom. Entertainment system outdated.

Flight was fine, however we were not able to check in online, this adds to travel stress. Luckily check-in at Heathrow was quick, but we did not get the seats we paid extra for. We paid for a window and 2 aisle seats from Shanghai to Tokyo leg, but they changed us to middle seats. Not good :(

It was my birthday while I was on the flight on China eastern airlines. They celebrated my day by giving me a personalized birthday card and also a very delicious pastry. I was surprised and thankful by the China Eastern crew! The whole staff was kind and professional? My second flight into China and the most memorable! Thank you-

2 hours delay on the 1st plane out of the day!!!!!

A lot of value considering the cheap ticket prices. All meals served were Chinese food. Would fly them again considering the ticket was half the price of any others

Everything you need to know for your flight from London to Chiang Mai

Information on your arrival and departure airports