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Cheap flights from Chiang Mai to London from £242

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Chiang Mai to London departing on 22/5. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags
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Cheap return flights

KAYAK's recommended return flight deals from the most popular airlines that fly from Chiang Mai to London.
China Eastern Logo
16:20 - 15:00CNX-LGW
28h 40m2 stops
China Eastern Logo
18:05 - 09:05LGW-CNX
33h 00m2 stops
£502China Eastern
Find Deal
Mon, 19 May - Mon, 26 May
China Eastern Logo
14:55 - 15:00CNX-LGW
30h 05m1 stop
China Eastern Logo
18:05 - 09:05LGW-CNX
33h 00m2 stops
£509China Eastern
Find Deal
Mon, 19 May - Mon, 26 May
China Southern Logo
18:50 - 19:00CNX-LHR
30h 10m1 stop
China Southern Logo
22:10 - 10:25LHR-CNX
30h 15m1 stop
£576China Southern
Find Deal
Mon, 19 May - Mon, 26 May
 Logo
18:50 - 20:00CNX-LHR
31h 10m3 stops
 Logo
21:05 - 22:50LHR-CNX
19h 45m2 stops
Sat, 3 May - Sat, 10 May
China Southern Logo
18:50 - 06:50CNX-LGW
18h 00m1 stop
China Southern Logo
12:00 - 17:50LGW-CNX
23h 50m1 stop
£798China Southern
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Sun, 29 Jun - Thu, 10 Jul
Asiana Airlines Logo
00:45 - 18:50CNX-LHR
24h 05m1 stop
Asiana Airlines Logo
20:40 - 23:40LHR-CNX
21h 00m1 stop
£818Asiana Airlines
Find Deal
Sun, 18 May - Mon, 26 May
Asiana Airlines Logo
00:45 - 18:50CNX-LHR
24h 05m1 stop
Asiana Airlines Logo
20:40 - 23:40LHR-CNX
21h 00m1 stop
£828Asiana Airlines
Find Deal
Sat, 28 Jun - Thu, 10 Jul
 Logo
17:40 - 08:10CNX-LCY
20h 30m2 stops
 Logo
13:05 - 13:45LCY-CNX
18h 40m2 stops
Mon, 19 May - Mon, 26 May
Cathay Pacific Logo
10:30 - 06:20CNX-LHR
25h 50m1 stop
Cathay Pacific Logo
12:20 - 18:40LHR-CNX
24h 20m1 stop
£860Cathay Pacific
Find Deal
Sun, 29 Jun - Thu, 10 Jul
Cathay Pacific Logo
10:30 - 18:15CNX-LHR
37h 45m1 stop
Cathay Pacific Logo
17:00 - 18:40LHR-CNX
19h 40m1 stop
£870Cathay Pacific
Find Deal
Tue, 1 Jul - Tue, 15 Jul

China Southern flights from Chiang Mai to London

Our best China Southern deals on Chiang Mai to London flight tickets
China Southern
19 May
CNX18:50Chiang Mai
30h 10m
1 stop
LHR19:00London Heathrow
26 May
LHR22:10London Heathrow
30h 15m
1 stop
CNX10:25Chiang Mai
China Southern
29 Jun
CNX18:50Chiang Mai
18h 00m
1 stop
LGW06:50London Gatwick
10 Jul
LGW12:00London Gatwick
23h 50m
1 stop
CNX17:50Chiang Mai
China Southern
30 Apr
CNX18:50Chiang Mai
30h 10m
1 stop
LHR19:00London Heathrow
13 May
LHR22:10London Heathrow
37h 40m
1 stop
CNX17:50Chiang Mai

Asiana Airlines flights from Chiang Mai to London

Our best Asiana Airlines deals on Chiang Mai to London flight tickets
Asiana Airlines
18 May
CNX00:45Chiang Mai
24h 05m
1 stop
LHR18:50London Heathrow
26 May
LHR20:40London Heathrow
21h 00m
1 stop
CNX23:40Chiang Mai
Asiana Airlines
28 Jun
CNX00:45Chiang Mai
24h 05m
1 stop
LHR18:50London Heathrow
10 Jul
LHR20:40London Heathrow
21h 00m
1 stop
CNX23:40Chiang Mai
Asiana Airlines
29 Apr
CNX00:45Chiang Mai
24h 05m
1 stop
LHR18:50London Heathrow
13 May
LHR20:40London Heathrow
21h 00m
1 stop
CNX23:40Chiang Mai

See travel insights to London from

How to get the cheapest flight ticket from Chiang Mai to London

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to London?

The cheapest month to fly to London from Chiang Mai is in June. Flight prices, which tend to average around £506, are often lower during this time because this is during the off-season. The month of February is another great option to travel to London, with average flight prices from Chiang Mai averaging around £524.

What is the cheapest day to depart on your flight to London?

Our data shows that Monday is the least expensive day to fly to London. Tickets to fly out on this day can be as low as £485. When flying out on a Friday, the most expensive travel day of the week, you can expect to see flight prices from Chiang Mai to London for around £1,115.

What is the cheapest time of day to depart on your flight to London?

The cheapest time of day to fly to London is in the afternoon when flights can be purchased for as low as £514. Flights in the morning are often more expensive, with an average ticket price of £1,115.

How have Chiang Mai to London flight prices changed over time?

As of April 2025, prices for Chiang Mai to London flights are approximately 27% more expensive when compared to flights at the same time last year.

When to book flights from Chiang Mai to London

Are you open to changing your travel dates? Check out the ideal times to fly from Chiang Mai to London according to our flight data. Find out which month and days have the cheapest flights.
Estimated return price

Cheap Chiang Mai to London (CNX to LON) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Chiang Mai to London

Best price found

£242

Fastest flight time

16h 05m

Direct flights

None

Airports in London

3 airports
The best one-way flight to London from Chiang Mai in the past 72 hours is £242. The best return flight deal from Chiang Mai to London found on momondo in the last 72 hours is £502.
The fastest flight from Chiang Mai to London takes 16h 05m
There are no direct flights from Chiang Mai to London. Popular non-direct routes for this connection are Chiang Mai Airport - London Gatwick Airport, Chiang Mai Airport - London Heathrow Airport and Chiang Mai Airport - London City Airport.
There are 3 airports near London: London City (LCY), London Heathrow (LHR), London Gatwick (LGW)

  • How far is Chiang Mai to London by plane?

    Chiang Mai and London are 5583.6 mi apart from one another. In terms of flight time, this usually takes a little over 17h 10m.

  • When did momondo last update prices for flights from Chiang Mai Airport to London?

    Prices for flights from Chiang Mai Airport to London are updated daily.

  • How many operators does momondo search for flights from Chiang Mai Airport to London?

  • How old do you have to be to fly from Chiang Mai Airport to London?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Chiang Mai Airport to London.

  • What documentation or ID do you need to fly to London?

    The travel and health documents you'll need for your trip to London may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at London. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from Chiang Mai to London?


Best airlines flying from Chiang Mai to London

Compare and see reviews for airlines that fly from Chiang Mai to London with momondo
Airline
Rating
Free Cancellation
Price
Thai AirwaysPriceFrom £794Free CancellationRating
7.8
319 reviews
Search Thai Airways flights

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Why use momondo?

Why should I use momondo to find a flight deal from Chiang Mai to London?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Chiang Mai to London for you.

Can I find flights from Chiang Mai to London with flexible booking policies on momondo?

Flights from Chiang Mai to London with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Chiang Mai to London?

Once you have performed a search for Chiang Mai to London flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Chiang Mai to London right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Chiang Mai to London flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.


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Find better results for your trip to the United Kingdom

Fly into one of these airports located in London

Airports listed have a maximum distance of 35.6 mi from London