LON - CNX

£315 Find Cheap Flights from London to Chiang Mai

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 4/9. 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.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Chiang Mai

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from London to Chiang Mai.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from London to Chiang Mai.
Travellers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 27% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Everything you should know

Cheapest return fare
£514
Typical prices: £920-£609
Air China
Fri 27/11Fri 4/12
LHR - CNX • 1 stop
Cheapest one-way flight
£315
Air China
Fri 4/9
LGW - CNX • 1 stop
Top airlines
Cheapest • from £514 (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 £483 (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
Start a new search
KAYAK searches hundreds of sites at once to find you the best travel deals.
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, 27 Nov - Fri, 4 Dec
Air China Logo
20:25 - 21:50
LHR
-
CNX
18h 25m
1 stop
Air China Logo
23:05 - 17:50
CNX
-
LHR
25h 45m
1 stop
£514Air China
Wed, 11 Nov - Mon, 23 Nov
China Eastern Logo
10:30 - 14:20
LGW
-
CNX
20h 50m
1 stop
China Eastern Logo
15:35 - 06:30
CNX
-
LGW
21h 55m
1 stop
£515China Eastern
Thu, 26 Nov - Thu, 17 Dec
China Eastern Logo
10:30 - 14:20
LGW
-
CNX
20h 50m
1 stop
China Eastern Logo
15:35 - 06:30
CNX
-
LGW
21h 55m
1 stop
£517China Eastern
Fri, 30 Oct - Mon, 9 Nov
Air China Logo
20:25 - 21:50
LHR
-
CNX
18h 25m
1 stop
Air China Logo
23:05 - 17:50
CNX
-
LHR
25h 45m
1 stop
£530Air China
Mon, 15 Jun - Tue, 14 Jul
Emirates Logo
14:55 - 09:20
STN
-
CNX
36h 25m
2 stops
Emirates Logo
20:00 - 12:55
CNX
-
STN
22h 55m
2 stops
£776Emirates
Sun, 1 Nov - Mon, 16 Nov
Emirates Logo
14:05 - 19:00
STN
-
CNX
21h 55m
2 stops
Emirates Logo
19:45 - 12:05
CNX
-
STN
23h 20m
2 stops
£805Emirates
Tue, 23 Jun - Mon, 29 Jun
KLM Logo
09:20 - 13:45
LCY
-
CNX
22h 25m
2 stops
KLM Logo
20:00 - 09:30
CNX
-
LCY
43h 30m
2 stops
£992KLM
Mon, 15 Jun - Tue, 23 Jun
KLM Logo
08:25 - 13:45
LCY
-
CNX
23h 20m
2 stops
KLM Logo
20:00 - 07:55
CNX
-
LCY
41h 55m
2 stops
£1,015KLM
Mon, 2 Nov - Tue, 17 Nov
SWISS Logo
09:15 - 13:45
LCY
-
CNX
21h 30m
2 stops
SWISS Logo
10:10 - 12:50
CNX
-
LCY
33h 40m
2 stops
£1,038SWISS
Fri, 30 Oct - Mon, 9 Nov
SWISS Logo
09:15 - 13:45
LCY
-
CNX
21h 30m
2 stops
SWISS Logo
10:10 - 12:50
CNX
-
LCY
33h 40m
2 stops
£1,039SWISS
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 November.

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 April and December, where the average cost of round-trip tickets is £416 and £402 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 20 weeks before departure.

Good to know - Cheap tickets from London to Chiang Mai

Low seasonAugust
Cheapest flight£315
Best time to beat the crowds but there is an average 14% increase in price.
Most popular time to fly (22% more expensive 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 3 days, the lowest price for a flight from London to Chiang Mai was £315 for a one-way ticket and £514 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 £776 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 £746 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 404 reviews
7.7Comfort
6.9Entertainment
7.4Food
8.4Crew
7.9Boarding
Airline reviews

Gate and boarding processes were handled smoothly and efficiently. Both (connecting) flights departed and arrived on time. The cabin crew seemed anxious and a bit stressed/rushed. Food service was OK, but the hot food dishes were poor quality.

8.0 ExcellentPeter, May 2026
KTI - LHR
Read more Thai Airways reviews

Gate and boarding processes were handled smoothly and efficiently. Both (connecting) flights departed and arrived on time. The cabin crew seemed anxious and a bit stressed/rushed. Food service was OK, but the hot food dishes were poor quality.

HAVING ANNOUNCEMENTS FOR PEOPLE TO BOARD ACCORDING TO GROUP IS ESSENTIAL N ENSURING N CUTTING OF QUEUES, EXCEPT FOR PRIORITY CLASS PASSENGERS ON A SEPARATE Q

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

business class is old but still done very well by the team.

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

Good experience although the boarding gate is at the terminal extension hence need to leave lounge to head over earlier.

Thai Royal First is very good. Easy check in , Private room in the first class lounge and escort from ticketing to the plane. Once on board crew was very polite, food was outstanding, and the ride was smooth as silk. Restrooms were especially clean. Great Experience

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.

Need to improve on punctuality. My flight was delayed by 1 hour.

I payed for extra leg room but in last moment my seating place was changed and i got standard one seat. Staff was not able to do anything , so was very disappointed because of this.

They lost the baggage and said it was deleted from the system. I had baggage tag so was able to file the complaint but there was no PIR number and update so far

It was very relaxing and staff were very quick to attend to any requests.

Seats were very comfortable and the staff too was very friendly.

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

It was excellent service in the snow storm gives us hotel and transportation. It will be more better if u can add one more meal because it’s a long flight boring journey. If you give extra meal time passes faster and can enjoy the trip better

Dear Team, I purchased a full travel package that included 2 checked bags through you and JustFly. However, when I arrived at the airport, my ticket showed 0 checked bags. Since I was traveling internationally to India with 2 bags, It was a $200 per bag at the counter, which was extremely disappointing. For an international trip, why would I ever choose a no‑bag option for only $20–$30 less? This seems like an error in the booking process, and I am requesting clarification and a resolution. I have called JustFly and on phone for 1 hr :53 min and they couldn't help till I show some kind of proof etc which isn't possible but besides that love your service and using it for years !

Awful the whole airline arrived to check baggage and board our flight and the airline desk was closed where none of the passengers could check in baggage, asked for a supervisor and was refused a supervisor, called the airlines from the airport and they refused to refund the flights for their actions in the airport, Etihad and Garuda Airlines absolutely horrible customer service all the way around.

I liked the crew, the food and the foot space. I did not like the comfort of the seats.

It was just fine. The sirlines did live up fully to my expectation.

The flight was delayed. The staff made us wait in the room that is too small and it was crowded and with no seats available for waiting. They did not tell us why the delay occurred.

While boarding at PVG, there was a ticket checking at the gate, then there was another ticket checking at the bottom of the escalator, which created quite a dangerous congestion. Not sure which idiot made this absolutely unnecessary arrangement.

While boarding at PVG, there was a ticket checking by the gate, then there was another ticket checking right at the bottom of the escalator, which created quite a dangerous congestion. Don't understand why the duplication?

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

Plane was good. But food was bad and air host was so rude. I will never fly with China Eastern again

The flight was delayed by 2 hours, although to their credit they delayed my connecting flight so people could reach it. Also their site is a nightmare to navigate on a phone. Everything else was good.

The ticket was last minute buy so no concerns about the pricing this time, but the crew in general could have been more accommodating, helpful.

CTU-KMG-CNX with 1.5 hr connection at KMG. Doable but just barely bc immigration exit from China is at the last flight leg, here: KMG to CNX. We hauled out of the domestic terminal to reenter at the international departures (luggage checked thru to CNX thankfully). Immigration had only two agents, even though KMG gets a HUGE number of foreigners. It took forever for such a shot line. Then security also took a while, so I just just made the connection. Recommend if you exit China with domestic international transfer, plan for 2+ hrs to avoid a heart attack. Airline personnel don’t suffer if you miss the flight, you do. Plan accordingly.

China Eastern as a member of Sky Alliance airlines should have the same standards overall of their partners, Besides the seats comforts everything else is bellow the standard for a business class travelers. A BIG ISSUE FOR NON-CHINESE PASSENGERS IS THE ABILITY TO CHECK IN ONLINE, by making so difficult or almost impossible there is no chance to get a seat assignment ahead of time then go to the airport and get what is left. THIS IS NOT a SKY TEAM modality.

Food no choice just give it seams trying to finish what ever you have in hand

The crews were very professional and courteous. Pleasant flight and thank you!

They wouldn't let me on the plane. The 3rd party apparently didn't pay for the tickets properly?

Overall experience is good but if the food menu can change to authentic Malaysia food will be good. I.e. Nasi Lemak, Char Kueh Tiew and etc

Surprised that the safety briefing was only conducted in Malay language and no English despite there are foreigners on board. MH should take safety more seriously.

Flights were delayed, Food was good but only 1 meal instead of 2.

Food was good but only 1 meal and 1 pie, instead of 2 meals. Both legs were late.

We are row 11, when the crew came to us, only one meal choice was available.

OK seats comfortable, easy boarding/embarking, excellent connection to domestic Malaysia flight with baggage checked through without customs. Catering especially drinks borderline ok luckily less important aspect

Comfortable seats in economy, managed a few hours sleep in an o night flight but the food was terrible. Surprising as Malaysia airlines has been good in the past. Service was mediocre this time too.

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).

The meals were not the greatest and lacking of appetite but everything else was spot on

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.

Your staff was exceptional. Could teach the other airlines-rules on etiquette, and service. Excellent landings on flights, carried out by your pilots. Only complaint is long delay on return flight in Beijing, onto Vancouver.

Worst than I expected, crew was not attentive, meal was as disgusting , they didn’t even drink selections as they would to other passengers. I felt discriminated

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

UA is ok. But check in was a very bad experience

I hate that you cannot check in online and when you are at the airport, there aren't any aisle seats left. Also, they could work a little on subtitles for their movies (not everyone is a native English speaker).

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.

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

Information on your arrival and departure airports