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Cheap flights from Chiang Mai to London from £205

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 31/3. 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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Cheap return flights

Enter your travel dates to find the best prices.
China Eastern Logo
16:10 - 18:40
CNX
-
LHR
32h 30m
2 stops
China Eastern Logo
21:20 - 09:15
LHR
-
CNX
29h 55m
2 stops
£531China Eastern
Thu, 2 Apr - Mon, 20 Apr
Multiple Airlines Logo
16:10 - 18:40
CNX
-
LHR
32h 30m
2 stops
Multiple Airlines Logo
22:40 - 21:50
LHR
-
CNX
17h 10m
1 stop
£534Multiple Airlines
Thu, 2 Apr - Mon, 20 Apr
Multiple Airlines Logo
14:55 - 18:40
CNX
-
LHR
33h 45m
1 stop
Multiple Airlines Logo
22:40 - 21:50
LHR
-
CNX
17h 10m
1 stop
£540Multiple Airlines
Sun, 29 Mar - Mon, 8 Jun
Multiple Airlines Logo
13:50 - 19:30
CNX
-
LHR
35h 40m
2 stops
Multiple Airlines Logo
22:40 - 21:50
LHR
-
CNX
17h 10m
1 stop
£540Multiple Airlines
Thu, 14 May - Fri, 29 May
Multiple Airlines Logo
16:10 - 18:40
CNX
-
LHR
32h 30m
2 stops
Multiple Airlines Logo
20:25 - 21:50
LHR
-
CNX
19h 25m
1 stop
£548Multiple Airlines
Sun, 29 Mar - Mon, 8 Jun
Multiple Airlines Logo
09:30 - 18:45
CNX
-
LHR
15h 15m
1 stop
Multiple Airlines Logo
22:40 - 21:50
LHR
-
CNX
17h 10m
1 stop
£551Multiple Airlines
Thu, 14 May - Fri, 29 May
China Eastern Logo
16:10 - 18:40
CNX
-
LHR
32h 30m
2 stops
China Eastern Logo
21:20 - 09:15
LHR
-
CNX
29h 55m
2 stops
£564China Eastern
Sun, 29 Mar - Tue, 21 Apr
Multiple Airlines Logo
06:40 - 19:30
CNX
-
LHR
42h 50m
3 stops
Multiple Airlines Logo
22:10 - 07:45
LHR
-
CNX
27h 35m
1 stop
£571Multiple Airlines
Sun, 3 May - Sat, 16 May
Multiple Airlines Logo
13:50 - 19:30
CNX
-
LHR
35h 40m
3 stops
Multiple Airlines Logo
22:10 - 07:45
LHR
-
CNX
27h 35m
1 stop
£578Multiple Airlines
Thu, 14 May - Fri, 29 May
China Eastern Logo
10:05 - 18:40
CNX
-
LHR
38h 35m
2 stops
China Eastern Logo
21:20 - 09:15
LHR
-
CNX
29h 55m
2 stops
£580China Eastern
Thu, 11 Jun - Sun, 14 Jun

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
3 May
CNX09:30Chiang Mai
35h 35m
1 stop
LHR15:05London Heathrow
16 May
LHR09:30London Heathrow
14h 55m
1 stop
CNX06:25Chiang Mai
£586
Etihad Airways
3 May
CNX09:30Chiang Mai
27h 30m
1 stop
LHR07:00London Heathrow
16 May
LHR09:30London Heathrow
14h 55m
1 stop
CNX06:25Chiang Mai
£597
Etihad Airways
11 Jun
CNX09:30Chiang Mai
15h 15m
1 stop
LHR18:45London Heathrow
14 Jun
LHR14:45London Heathrow
33h 40m
1 stop
CNX06:25Chiang Mai
£647

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
2 Apr
CNX23:05Chiang Mai
27h 20m
1 stop
LHR20:25London Heathrow
20 Apr
LHR22:40London Heathrow
17h 10m
1 stop
CNX21:50Chiang Mai
£603
Air China
11 Jun
CNX23:05Chiang Mai
27h 20m
1 stop
LHR20:25London Heathrow
14 Jun
LHR22:40London Heathrow
17h 10m
1 stop
CNX21:50Chiang Mai
£617
Air China
11 Jun
CNX23:05Chiang Mai
27h 20m
1 stop
LHR20:25London Heathrow
14 Jun
LHR22:40London Heathrow
17h 10m
1 stop
CNX21:50Chiang Mai
£619

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 March 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

Thu 2/4

16:10-18:40

2 stops32h 30m

London Heathrow

Mon 20/4

21:20-09:15

2 stops29h 55m

£531

Chiang MaiLondon

CNX - LHR

CNXLHR

Chiang Mai

Thu 2/4

16:10-18:40

2 stops32h 30m

London Heathrow

Mon 20/4

22:40-21:50

1 stop17h 10m

£534

Chiang MaiLondon

CNX - LHR

CNXLHR

Chiang Mai

Sun 29/3

14:55-18:40

1 stop33h 45m

London Heathrow

Mon 8/6

22:40-21:50

1 stop17h 10m

£540

Chiang MaiLondon

CNX - LHR

CNXLHR

Chiang Mai

Thu 14/5

13:50-19:30

2 stops35h 40m

London Heathrow

Fri 29/5

22:40-21:50

1 stop17h 10m

£540

Chiang MaiLondon

CNX - LHR

CNXLHR

Chiang Mai

Sun 29/3

16:10-18:40

2 stops32h 30m

London Heathrow

Mon 8/6

20:25-21:50

1 stop19h 25m

£548
Fastest return journey

Chiang MaiLondon

CNX - LHR

CNXLHR

Chiang Mai

Thu 14/5

09:30-18:45

1 stop15h 15m

London Heathrow

Fri 29/5

22:40-21:50

1 stop17h 10m

£551

Chiang MaiLondon

CNX - LHR

CNXLHR

Chiang Mai

Sun 29/3

16:10-18:40

2 stops32h 30m

London Heathrow

Tue 21/4

21:20-09:15

2 stops29h 55m

£564

Chiang MaiLondon

CNX - LHR

CNXLHR

Chiang Mai

Sun 3/5

06:40-19:30

3 stops42h 50m

London Heathrow

Sat 16/5

22:10-07:45

1 stop27h 35m

£571

Chiang MaiLondon

CNX - LHR

CNXLHR

Chiang Mai

Thu 14/5

13:50-19:30

3 stops35h 40m

London Heathrow

Fri 29/5

22:10-07:45

1 stop27h 35m

£578

Chiang MaiLondon

CNX - LHR

CNXLHR

Chiang Mai

Thu 11/6

10:05-18:40

2 stops38h 35m

London Heathrow

Sun 14/6

21:20-09:15

2 stops29h 55m

£580

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
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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 31% 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

21h 45m

Direct flights

None
The fastest flight from Chiang Mai to London Heathrow Airport takes 21h 45m
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.
Search flight deals

  • 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 21h 45m.

  • 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 £512Free CancellationRating
7.3
141 reviews
Search Air China flights
Etihad AirwaysPriceFrom £566Free CancellationRating
7.3
1,424 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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