CNX - LHR

฿12,065 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 29/11. 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
฿27,303
Air China
Thu 18/6Mon 22/6
CNX - LHR • 1 stop
Cheapest one-way flight
฿12,065
Typical prices: ฿16,120-฿19,684
เอทิฮัดแอร์เวย์
Sun 29/11
CNX - LHR • 1 stop
Top airlines
Cheapest • from ฿27,303 (return)
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Direct flights
Not available
There are currently no direct flights between Chiang Mai and Heathrow. You’ll need at least 1 connection.
Insights
Insights
Insights
Insights
Top stopover airports
Cheapest • Avg ฿28,505 (return)
Shortest trip • 16h 18m (one-way)
Insights
Insights
Insights
Insights
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 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

Thu 18 Jun - Mon 22 Jun
Air China Logo
23:05 - 20:25
CNX
-
LHR
27h 20m
1 stop
Air China Logo
22:40 - 21:50
LHR
-
CNX
17h 10m
1 stop
฿27,303Air China
Tue 16 Jun - Tue 23 Jun
เอทิฮัดแอร์เวย์ Logo
14:35 - 15:05
CNX
-
LHR
30h 30m
2 stops
เอทิฮัดแอร์เวย์ Logo
21:45 - 11:15
LHR
-
CNX
31h 30m
2 stops
฿28,937เอทิฮัดแอร์เวย์
Wed 15 Jul - Wed 12 Aug
เอทิฮัดแอร์เวย์ Logo
20:00 - 12:45
CNX
-
LHR
22h 45m
2 stops
เอทิฮัดแอร์เวย์ Logo
14:45 - 19:10
LHR
-
CNX
22h 25m
2 stops
฿29,166เอทิฮัดแอร์เวย์
Tue 16 Jun - Tue 23 Jun
เอทิฮัดแอร์เวย์ Logo
10:10 - 07:00
CNX
-
LHR
26h 50m
2 stops
เอทิฮัดแอร์เวย์ Logo
21:45 - 11:15
LHR
-
CNX
31h 30m
2 stops
฿29,362เอทิฮัดแอร์เวย์
Tue 30 Jun - Tue 7 Jul
เอทิฮัดแอร์เวย์ Logo
11:55 - 07:00
CNX
-
LHR
25h 05m
2 stops
เอทิฮัดแอร์เวย์ Logo
21:45 - 19:10
LHR
-
CNX
39h 25m
2 stops
฿29,853เอทิฮัดแอร์เวย์
Tue 16 Jun - Tue 23 Jun
Multiple Airlines Logo
23:05 - 20:25
CNX
-
LHR
27h 20m
1 stop
Multiple Airlines Logo
20:45 - 09:20
LHR
-
CNX
30h 35m
2 stops
฿30,867Multiple Airlines
Tue 16 Jun - Tue 23 Jun
Multiple Airlines Logo
23:05 - 20:25
CNX
-
LHR
27h 20m
1 stop
Multiple Airlines Logo
21:45 - 11:15
LHR
-
CNX
31h 30m
2 stops
฿31,194Multiple Airlines
Tue 30 Jun - Tue 7 Jul
Multiple Airlines Logo
23:05 - 17:40
CNX
-
LHR
24h 35m
1 stop
Multiple Airlines Logo
20:45 - 19:10
LHR
-
CNX
40h 25m
2 stops
฿31,782Multiple Airlines
Sat 20 Jun - Sat 18 Jul
เอทิฮัดแอร์เวย์ Logo
10:10 - 07:00
CNX
-
LHR
26h 50m
2 stops
เอทิฮัดแอร์เวย์ Logo
09:30 - 19:10
LHR
-
CNX
27h 40m
2 stops
฿32,142เอทิฮัดแอร์เวย์
Mon 14 Sep - Wed 16 Sep
เอทิฮัดแอร์เวย์ Logo
10:10 - 12:45
CNX
-
LHR
32h 35m
2 stops
เอทิฮัดแอร์เวย์ Logo
09:30 - 19:10
LHR
-
CNX
27h 40m
2 stops
฿32,469เอทิฮัดแอร์เวย์
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.

Which airlines provide the cheapest flights from Chiang Mai to London Heathrow Airport?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 5 days.

In the past 3 days, the cheapest return tickets from Chiang Mai to London Heathrow Airport were found on Air China (฿27,303) and เอทิฮัดแอร์เวย์ (฿28,349).

Good to know

Cheapest flight฿12,065
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 ฿12,065 for a one-way ticket and ฿27,303 for a return.

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

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

  • 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 airline 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
เอทิฮัดแอร์เวย์Overall score based on 1448 reviews
7.2Entertainment
7.8Crew
7.2Food
7.3Comfort
7.6Boarding
Airline reviews

Very disappointed to not have lounge access The shorter flight seats were uncomfortable

6.0 GoodAnonymous, May 2026
JFK - AUH
Read more เอทิฮัดแอร์เวย์ reviews

Very disappointed to not have lounge access The shorter flight seats were uncomfortable

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

Flight got canceled due to Middle East conflict. Just fly hasn’t refunded me the money

The seats seemed smaller than other business class offerings. The entertainment menu was limited. Flight crew was good.

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 !

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

Early arrival. Good boarding. Deplaning this flight is very slow both coming and going. Baggage arrived quickly for Pearson

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 .

On this flight...fine. The one from India to Abu Dahbi, awful.

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