CNX - LHR

£198 Find Cheap Flights from Chiang Mai to London Heathrow Airport

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Chiang Mai to Heathrow departing on 22/3. 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 London Heathrow Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Chiang Mai to London, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Chiang Mai to London, as well as popular online travel agencies
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Everything you should know

Cheapest return fare
£507
China Eastern
Wed 4/3Wed 11/3
CNX - LHR • 2 stops
Cheapest one-way flight
£198
Typical prices: £254-£358
Multiple Airlines
Sun 22/3
CNX - LHR • 3 stops
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We hope you love your trip to Heathrow!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Chiang Mai to Heathrow (CNX-LHR)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Chiang Mai to Heathrow 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 Chiang Mai to Heathrow

Wed, 4 Mar - Wed, 11 Mar
China Eastern Logo
16:25 - 17:30
CNX
-
LHR
32h 05m
2 stops
China Eastern Logo
21:00 - 09:05
LHR
-
CNX
29h 05m
2 stops
£507China Eastern
Wed, 4 Mar - Wed, 11 Mar
China Eastern Logo
16:25 - 17:30
CNX
-
LHR
32h 05m
2 stops
China Eastern Logo
21:00 - 22:20
LHR
-
CNX
18h 20m
1 stop
£517China Eastern
Fri, 6 Mar - Fri, 13 Mar
Multiple Airlines Logo
16:25 - 17:30
CNX
-
LHR
32h 05m
2 stops
Multiple Airlines Logo
17:40 - 21:50
LHR
-
CNX
21h 10m
1 stop
£529Multiple Airlines
Thu, 5 Mar - Thu, 12 Mar
Multiple Airlines Logo
16:25 - 17:30
CNX
-
LHR
32h 05m
2 stops
Multiple Airlines Logo
17:40 - 21:50
LHR
-
CNX
21h 10m
1 stop
£532Multiple Airlines
Fri, 6 Mar - Fri, 13 Mar
Multiple Airlines Logo
23:20 - 17:30
CNX
-
LHR
25h 10m
1 stop
Multiple Airlines Logo
17:40 - 21:50
LHR
-
CNX
21h 10m
1 stop
£542Multiple Airlines
Wed, 4 Mar - Wed, 11 Mar
China Eastern Logo
23:20 - 17:30
CNX
-
LHR
25h 10m
1 stop
China Eastern Logo
21:00 - 22:20
LHR
-
CNX
18h 20m
1 stop
£546China Eastern
Thu, 5 Mar - Thu, 12 Mar
Multiple Airlines Logo
14:30 - 17:35
CNX
-
LHR
34h 05m
3 stops
Multiple Airlines Logo
20:25 - 21:50
LHR
-
CNX
18h 25m
1 stop
£547Multiple Airlines
Fri, 6 Mar - Fri, 13 Mar
Air China Logo
23:05 - 15:55
CNX
-
LHR
23h 50m
1 stop
Air China Logo
17:40 - 21:50
LHR
-
CNX
21h 10m
1 stop
£548Air China
Thu, 5 Mar - Thu, 12 Mar
Multiple Airlines Logo
23:20 - 17:30
CNX
-
LHR
25h 10m
1 stop
Multiple Airlines Logo
17:40 - 21:50
LHR
-
CNX
21h 10m
1 stop
£552Multiple Airlines
Thu, 2 Apr - Sun, 19 Apr
China Eastern Logo
14:55 - 18:40
CNX
-
LHR
33h 45m
1 stop
China Eastern Logo
21:20 - 13:25
LHR
-
CNX
34h 05m
1 stop
£576China Eastern
Booking Insights

KAYAK's insights & trends for Chiang Mai to Heathrow flights

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

What is the most popular stopover airport when flying from Chiang Mai to London Heathrow Airport?

Percentage of one-stop return flights from Chiang Mai to London Heathrow Airport chosen by KAYAK users via each stopover airport in the last 12 months (only includes trips with the same stopover airport on both legs).

Beijing (PEK) is the top choice – 81% of KAYAK users who clicked on one-stop flights from Chiang Mai to London Heathrow Airport picked an itinerary connecting there.

What is the cheapest stopover airport when flying from Chiang Mai to London Heathrow Airport?

Average return price for one-stop flights from Chiang Mai to London Heathrow Airport clicked by KAYAK users in the last 12 months (only includes trips with the same stopover airport for both legs).

Flights via Beijing (PEK) offer the most affordable fares, with an average price of £547 for a return.

Which stopover airport offers the shortest total travel time from Chiang Mai to London Heathrow Airport?

Shortest average total travel time for one-stop one-way flights from Chiang Mai to London Heathrow Airport via different stopover airports, based on KAYAK user data from the last 12 months.

Consider flying via Abu Dhabi (AUH) for the shortest journey. The average one-way travel time for flights connecting there is 16h 00m.

Which stopover airport has the quickest connection when flying from Chiang Mai to London Heathrow Airport?

Average duration at different stopover airports for one-stop one-way flights from Chiang Mai to London Heathrow Airport, based on KAYAK user data from the last 12 months.

If you prefer a quick connection, Abu Dhabi (AUH) often has the shortest stopovers from Chiang Mai to London Heathrow Airport, with an average time of 1h 20m.

Good to know - Cheap tickets from Chiang Mai to London Heathrow Airport

Cheapest flight£198
Flight from Chiang Mai to London Heathrow Airport

When to book flights from Chiang Mai to Heathrow

Are your dates flexible? Find out the best times to travel from Chiang Mai to Heathrow 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 Chiang Mai to London Heathrow Airport flights

  • Where do flights with one stopover between Chiang Mai to Heathrow usually stop?

    Thai Airways flights usually stop in Bangkok. Korean Air flights generally stop in Seoul at Incheon Airport (ICN) and EVA Air flights also stop in Bangkok. You can also find flights with Singapore Airlines that stop at Singapore Changi Aiport (SIN). Some China Eastern flights have a single stopover in Shanghai (PVG) while most Cathay Pacific flights have two stops, although some include a single stopover in Hong Kong (HKG).

  • How much checked luggage can I bring on flights to Chiang Mai?

    Korean Air allows you to bring 23 kg on an Economy ticket. Qatar Airways allows 20 kg, 25 kg, 30 kg or 35 kg, depending on the type of Economy fare you choose. Thai Airways lets you bring 20 kg of checked luggage on their Standard Economy fare. Singapore Airlines lets you bring 25 kg on their Value and Lite fares and 30 kg on their Flexi and Standard fares.

  • How much carry-on luggage can I bring on flights to London?

    Korean Air allows you to bring 10 kg of carry on luggage spread across your suitcase and personal bag. Most other airlines let passengers bring up to 7 kg of carry on luggage, plus a small personal item. This item usually isn't weighed, but it generally can't be larger than 40 x 30 x 10 cm.

  • Which lounges can I use at Chiang Mai Airport (CNX)?

    Chiang Mai Airport has a number of lounges available. Bangkok Airways has two lounges in the Domestic Terminal. Thai Airways has lounges in the domestic and international terminals. You can also spend time at the Coral Executive Lounge. There's one in each terminal and they're open to all passengers for an additional fee.

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

    In the last 3 days, the lowest price for a flight from Chiang Mai to London Heathrow Airport was £198 for a one-way ticket and £529 for a return.

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

    When flying out of Chiang Mai you will be using Chiang Mai. You will be landing at London Heathrow Airport, also known as London Heathrow.

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

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

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

    Star Alliance is the only airline alliance operating flights between Chiang Mai and London Heathrow Airport.

  • Which is the best airline for flights from Chiang Mai to London, Etihad Airways or Air China?

    The two airlines most popular with KAYAK users for flights from Chiang Mai to London are Etihad Airways and Air China. With an average price for the route of £663 and an overall rating of 7.3, Etihad Airways is the most popular choice. Air China is also a great choice for the route, with an average price of £548 and an overall rating of 7.2.

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

    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 Chiang Mai to London Heathrow Airport.

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

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

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

    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 London Heathrow Airport with an airline and back to Chiang Mai with another airline.

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

    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 London Heathrow Airport from Chiang Mai 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 Chiang Mai to London Heathrow Airport

  • If you need special assistance on this route, make sure to contact your airline at least 48 hours in advance. As there are some self-transfer routes with multiple airlines, check to see if you need to contact both airlines.
  • While there are many flights from Chiang Mai to London Heathrow Airport (LHR) with a single stopover, you can also find flights with two stopovers that are cheaper. Most stop in Bangkok (BKK) first. Oman Air flights then stop in Muscat and Etihad Airways flights stop in Abu Dhabi (AUH). Bangkok Airways and Austrian Airlines partner for a route that stops in Bangkok and Vienna (VIE)
  • After landing at London Heathrow Airport, you can head into Central London on the Heathrow Express. It takes around 15 minutes to arrive at London Paddington Station. Alternatively, you can take the Elizabeth Line train which takes slightly longer but is also cheaper.
  • If you fly with Emirates or Qatar Airways, you can use their stopover services on your second stopover in Dubai (DXB) or Doha (DOH). This service includes a stay at a luxury hotel and optional tours. If you have to book a long stopover with Emirates, you may be able to access this service for free.
  • If you have a stopover in Bangkok, make sure you check your ticket carefully. Some of these flights may depart from the Domestic Terminal in Chiang Mai, instead of the international one. This may also mean you'll need to go through a security check when you enter the International Terminal in Bangkok.

Reviews of the top airlines flying from Chiang Mai to Heathrow

 
See real verified KAYAK customer reviews for airlines flying from Chiang Mai to London. 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 Chiang Mai to Heathrow? 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.
7.3
Etihad AirwaysOverall score based on 1374 reviews
7.6Boarding
7.8Crew
7.3Comfort
7.2Food
7.2Entertainment
Airline reviews

The crew could have been more friendly and could have offered to make the beds. Also, Ethiad should have more vegetarian food options.

4.0 OkayNeha, Jan 2026
AUH - ATL
Read more Etihad Airways reviews

The crew could have been more friendly and could have offered to make the beds. Also, Ethiad should have more vegetarian food options.

The flight was over 1 hour late taking off ,when I arrived in Abu Dhabi ,I missed my connecting flight to Bangkok so I had to wait almost 6 hours for my flight arriving in Bangkok at 6:30 am ,So I missed a whole day of my vacation and my hotel room sat empty so I paid for hotel days that I was not there. In Abu Dhabi there was a woman that worked the desk at transfers that was so professional, courteous , helpful,and may I say absolutely beautiful .she got me food vouchers for my layover and was a very calming presence. Besides that I will never use Etihad again I will pay the Xtra money . I'm sure they won't read or see this but it's my "2 cents" I'll use an airline that respects me and my hard earned dollars

Nice crew , clean cabin , food was delayed due to problem with the quantity .

I booked and paid for a Business Class seat for myself and my wife. 4 hours before the flight i get a call saying the plane they sent doesn't have the correct layout to accommodate all the business class seats they sold me 3 months earlier at a premium of $1500 a ticket. So they have to bump me from Business to Economy and will give me a $400 credit (total of $800 for both seats) that I could turn in at Abu Dahbi for $400 in US cash. They then promised a row that we could have to ourselves and the arm rests would go up so we could spread out for each of us. My wife was taken care of but I was put in the exit row with the flight attendents set as part of the three...and the arm rest did not go up. When we got to Abu Dahbi, they would not exchange our credit for cash as promised. Very disappointed they took my money 3 months ago and refused to reimburse for the change in seats or follow the promises made.

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.

Was so disappointing. Business class with no TV, uncomfortable seats. Had much higher expectations.

I didn’t have a flight because it was a fraud and you allow it. Illl never use Kayak again!!!

It’s a business class ticket but they didn’t give a lounge access

The flight from Abu Dabhi to Bangalore was terrible. The plane was an order model with no onboard entertainment. The beverage selection were very limited.

excellent, staff and boarding were all seamless and no issues, thank you!

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.

It's terrible that we can't do online check in because we didn't buy the tickets directly from Air china. It was not explained until I contacted Chatdeal and we could not sit together.

Communication between the captain/crew and the passengers needs to be improved.

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

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

Information on your arrival and departure airports