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Cheap flights from Chiang Mai to London from £244

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 15/6. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Cheap return flights

Enter your travel dates to find the best prices.
Etihad Airways Logo
08:50 - 12:05
CNX
-
LHR
34h 15m
1 stop
Etihad Airways Logo
08:50 - 06:05
LHR
-
CNX
14h 15m
1 stop
£650Etihad Airways
Mon, 23 Nov - Sat, 28 Nov
Etihad Airways Logo
20:00 - 12:45
CNX
-
LHR
22h 45m
2 stops
Etihad Airways Logo
14:45 - 19:10
LHR
-
CNX
22h 25m
2 stops
£669Etihad Airways
Wed, 15 Jul - Wed, 12 Aug
Multiple Airlines Logo
22:30 - 13:45
CNX
-
LHR
22h 15m
2 stops
Multiple Airlines Logo
20:25 - 21:50
LHR
-
CNX
18h 25m
1 stop
£716Multiple Airlines
Sat, 5 Dec - Sat, 9 Jan
Etihad Airways Logo
20:00 - 12:45
CNX
-
LHR
22h 45m
2 stops
Etihad Airways Logo
14:45 - 19:10
LHR
-
CNX
22h 25m
2 stops
£720Etihad Airways
Mon, 6 Jul - Mon, 13 Jul
Multiple Airlines Logo
21:05 - 13:45
CNX
-
LHR
23h 40m
2 stops
Multiple Airlines Logo
20:25 - 21:50
LHR
-
CNX
18h 25m
1 stop
£723Multiple Airlines
Mon, 23 Nov - Sat, 28 Nov
Etihad Airways Logo
10:10 - 12:45
CNX
-
LHR
32h 35m
2 stops
Etihad Airways Logo
09:30 - 19:10
LHR
-
CNX
27h 40m
2 stops
£744Etihad Airways
Mon, 14 Sep - Wed, 16 Sep
Etihad Airways Logo
20:00 - 12:45
CNX
-
LHR
46h 45m
2 stops
Etihad Airways Logo
09:30 - 11:15
LHR
-
CNX
43h 45m
2 stops
£745Etihad Airways
Sun, 26 Jul - Mon, 7 Sep
Etihad Airways Logo
10:10 - 07:00
CNX
-
LHR
26h 50m
2 stops
Etihad Airways Logo
20:45 - 11:15
LHR
-
CNX
32h 30m
2 stops
£746Etihad Airways
Mon, 14 Sep - Wed, 16 Sep
Multiple Airlines Logo
14:50 - 05:35
CNX
-
LHR
21h 45m
1 stop
Multiple Airlines Logo
20:25 - 21:50
LHR
-
CNX
18h 25m
1 stop
£748Multiple Airlines
Sat, 5 Dec - Sat, 9 Jan
Gulf Air Logo
11:55 - 06:55
CNX
-
LHR
25h 00m
2 stops
Gulf Air Logo
10:00 - 13:45
LHR
-
CNX
21h 45m
2 stops
£791Gulf Air
Mon, 14 Sep - Wed, 16 Sep

Etihad Airways flights from Chiang Mai to London Heathrow Airport

Our best Etihad Airways deals on Chiang Mai to London Heathrow Airport flight tickets
Etihad Airways
23 Nov
CNX08:50Chiang Mai
34h 15m
1 stop
LHR12:05London Heathrow
28 Nov
LHR08:50London Heathrow
14h 15m
1 stop
CNX06:05Chiang Mai
£650
Etihad Airways
14 Jun
CNX10:10Chiang Mai
32h 35m
2 stops
LHR12:45London Heathrow
23 Jun
LHR21:45London Heathrow
29h 35m
2 stops
CNX09:20Chiang Mai
£660
Etihad Airways
16 Jun
CNX14:35Chiang Mai
30h 30m
2 stops
LHR15:05London Heathrow
23 Jun
LHR21:45London Heathrow
31h 30m
2 stops
CNX11:15Chiang Mai
£663

Air China flights from Chiang Mai to London Heathrow Airport

Our best Air China deals on Chiang Mai to London Heathrow Airport flight tickets
Air China
11 Jun
CNX23:05Chiang Mai
27h 20m
1 stop
LHR20:25London Heathrow
24 Jun
LHR22:40London Heathrow
17h 10m
1 stop
CNX21:50Chiang Mai
£677
Air China
16 Jun
CNX23:05Chiang Mai
24h 35m
1 stop
LHR17:40London Heathrow
17 Jun
LHR20:25London Heathrow
19h 25m
1 stop
CNX21:50Chiang Mai
£799
Air China
6 Jul
CNX23:05Chiang Mai
24h 35m
1 stop
LHR17:40London Heathrow
13 Jul
LHR22:40London Heathrow
17h 10m
1 stop
CNX21:50Chiang Mai
£825

momondo Fare Finder

 
Customise your flight search to find flights from Chiang Mai to London Heathrow Airport that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 279,928 searches. Data last updated 8 June 2026.
Use the filters below to find and compare flights from Chiang Mai to London Heathrow Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

Chiang MaiLondon

CNX - LHR

CNXLHR

Chiang Mai

Mon 23/11

08:50-12:05

1 stop34h 15m

London Heathrow

Sat 28/11

08:50-06:05

1 stop14h 15m

£650

Chiang MaiLondon

CNX - LHR

CNXLHR

Chiang Mai

Wed 15/7

20:00-12:45

2 stops22h 45m

London Heathrow

Wed 12/8

14:45-19:10

2 stops22h 25m

£669

Chiang MaiLondon

CNX - LHR

CNXLHR

Chiang Mai

Sat 5/12

22:30-13:45

2 stops22h 15m

London Heathrow

Sat 9/1

20:25-21:50

1 stop18h 25m

£716

Chiang MaiLondon

CNX - LHR

CNXLHR

Chiang Mai

Mon 6/7

20:00-12:45

2 stops22h 45m

London Heathrow

Mon 13/7

14:45-19:10

2 stops22h 25m

£720

Chiang MaiLondon

CNX - LHR

CNXLHR

Chiang Mai

Mon 23/11

21:05-13:45

2 stops23h 40m

London Heathrow

Sat 28/11

20:25-21:50

1 stop18h 25m

£723

Chiang MaiLondon

CNX - LHR

CNXLHR

Chiang Mai

Mon 14/9

10:10-12:45

2 stops32h 35m

London Heathrow

Wed 16/9

09:30-19:10

2 stops27h 40m

£744

Chiang MaiLondon

CNX - LHR

CNXLHR

Chiang Mai

Sun 26/7

20:00-12:45

2 stops46h 45m

London Heathrow

Mon 7/9

09:30-11:15

2 stops43h 45m

£745

Chiang MaiLondon

CNX - LHR

CNXLHR

Chiang Mai

Mon 14/9

10:10-07:00

2 stops26h 50m

London Heathrow

Wed 16/9

20:45-11:15

2 stops32h 30m

£746
Fastest return journey

Chiang MaiLondon

CNX - LHR

CNXLHR

Chiang Mai

Sat 5/12

14:50-05:35

1 stop21h 45m

London Heathrow

Sat 9/1

20:25-21:50

1 stop18h 25m

£748

Chiang MaiLondon

CNX - LHR

CNXLHR

Chiang Mai

Mon 14/9

11:55-06:55

2 stops25h 00m

London Heathrow

Wed 16/9

10:00-13:45

2 stops21h 45m

£791

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to London from

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

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

Can stopping save me money on Chiang Mai to London Heathrow Airport flights?

You could potentially save up to 22% on your flight if you consider stops on a Chiang Mai to London Heathrow Airport flight.

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

When to book flights from Chiang Mai to London Heathrow Airport

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

Cheap Chiang Mai to London Heathrow Airport (CNX to LHR) flight deals and tips

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

Fastest flight time

22h 05m

Direct flights

None
The fastest flight from Chiang Mai to London Heathrow Airport takes 22h 05m
There are no direct flights from Chiang Mai to London Heathrow Airport. There are no popular flight routes from Chiang Mai to London Heathrow Airport.
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Frequently asked questions about flying from Chiang Mai to London Heathrow Airport

  • How far is Chiang Mai to London Heathrow by plane?

    Chiang Mai and London Heathrow are 5597.7 mi apart from one another. In terms of flight time, this usually takes a little over 22h 05m.

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

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

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

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

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Chiang Mai Airport to London Heathrow Airport.

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

    The travel and health documents you'll need for your trip to London Heathrow Airport 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 Heathrow Airport. 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 Heathrow Airport?

Best airlines flying from Chiang Mai to London Heathrow Airport

Compare and see reviews for airlines that fly from Chiang Mai to London Heathrow Airport with momondo
Airline
Rating
Free Cancellation
Price
Air ChinaPriceFrom £515Free CancellationRating
7.3
154 reviews
Search Air China flights
Etihad AirwaysPriceFrom £569Free CancellationRating
7.3
1,450 reviews
Search Etihad Airways flights

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Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Chiang Mai to London. momondo saves you time and could save you money on your trip.

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

Yes. momondo enables you to select and highlight flights to London from Chiang Mai with this policy.

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?

Price alerts on flights to London from Chiang Mai are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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