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Cheap flights from Chiang Mai to London from £198

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 22/3. 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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0 bags

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Cheap return flights

Enter your travel dates to find the best prices.
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
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
£532Multiple Airlines
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
£542Multiple Airlines
Fri, 6 Mar - Fri, 13 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
Thu, 5 Mar - Thu, 12 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
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
£552Multiple Airlines
Thu, 5 Mar - Thu, 12 Mar
Multiple Airlines Logo
16:20 - 18:40
CNX
-
LHR
32h 20m
2 stops
Multiple Airlines Logo
14:45 - 06:25
LHR
-
CNX
33h 40m
1 stop
£599Multiple Airlines
Wed, 1 Apr - Thu, 30 Apr
Air China Logo
23:05 - 17:40
CNX
-
LHR
24h 35m
1 stop
Air China Logo
20:25 - 21:50
LHR
-
CNX
19h 25m
1 stop
£623Air China
Thu, 2 Apr - Sun, 19 Apr
Air China Logo
23:05 - 20:25
CNX
-
LHR
27h 20m
1 stop
Air China Logo
20:25 - 21:50
LHR
-
CNX
19h 25m
1 stop
£625Air China
Thu, 2 Apr - Sun, 19 Apr
China Eastern Logo
16:25 - 17:30
CNX
-
LHR
32h 05m
2 stops
China Eastern Logo
06:20 - 22:20
LHR
-
CNX
33h 00m
2 stops
£628China Eastern
Thu, 5 Feb - Fri, 20 Feb

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
30 Apr
CNX09:30Chiang Mai
15h 15m
1 stop
LHR18:45London Heathrow
14 Oct
LHR09:30London Heathrow
14h 55m
1 stop
CNX06:25Chiang Mai
£643
Etihad Airways
30 Apr
CNX09:30Chiang Mai
15h 15m
1 stop
LHR18:45London Heathrow
14 Oct
LHR09:30London Heathrow
14h 55m
1 stop
CNX06:25Chiang Mai
£646
Etihad Airways
2 Jun
CNX09:30Chiang Mai
15h 15m
1 stop
LHR18:45London Heathrow
12 Jun
LHR09:30London Heathrow
14h 55m
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
6 Mar
CNX23:05Chiang Mai
23h 50m
1 stop
LHR15:55London Heathrow
13 Mar
LHR17:40London Heathrow
21h 10m
1 stop
CNX21:50Chiang Mai
£548
Air China
2 Apr
CNX23:05Chiang Mai
24h 35m
1 stop
LHR17:40London Heathrow
19 Apr
LHR20:25London Heathrow
19h 25m
1 stop
CNX21:50Chiang Mai
£623
Air China
2 Apr
CNX23:05Chiang Mai
27h 20m
1 stop
LHR20:25London Heathrow
19 Apr
LHR20:25London Heathrow
19h 25m
1 stop
CNX21:50Chiang Mai
£625

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 21 January 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

Chiang MaiLondon

CNX - LHR

CNXLHR

Chiang Mai

Fri 6/3

16:25-17:30

2 stops32h 05m

London Heathrow

Fri 13/3

17:40-21:50

1 stop21h 10m

£529

Chiang MaiLondon

CNX - LHR

CNXLHR

Chiang Mai

Thu 5/3

16:25-17:30

2 stops32h 05m

London Heathrow

Thu 12/3

17:40-21:50

1 stop21h 10m

£532

Chiang MaiLondon

CNX - LHR

CNXLHR

Chiang Mai

Fri 6/3

23:20-17:30

1 stop25h 10m

London Heathrow

Fri 13/3

17:40-21:50

1 stop21h 10m

£542

Chiang MaiLondon

CNX - LHR

CNXLHR

Chiang Mai

Thu 5/3

14:30-17:35

3 stops34h 05m

London Heathrow

Thu 12/3

20:25-21:50

1 stop18h 25m

£546

Chiang MaiLondon

CNX - LHR

CNXLHR

Chiang Mai

Fri 6/3

23:05-15:55

1 stop23h 50m

London Heathrow

Fri 13/3

17:40-21:50

1 stop21h 10m

£548

Chiang MaiLondon

CNX - LHR

CNXLHR

Chiang Mai

Thu 5/3

23:20-17:30

1 stop25h 10m

London Heathrow

Thu 12/3

17:40-21:50

1 stop21h 10m

£552

Chiang MaiLondon

CNX - LHR

CNXLHR

Chiang Mai

Wed 1/4

16:20-18:40

2 stops32h 20m

London Heathrow

Thu 30/4

14:45-06:25

1 stop33h 40m

£599

Chiang MaiLondon

CNX - LHR

CNXLHR

Chiang Mai

Thu 2/4

23:05-17:40

1 stop24h 35m

London Heathrow

Sun 19/4

20:25-21:50

1 stop19h 25m

£623

Chiang MaiLondon

CNX - LHR

CNXLHR

Chiang Mai

Thu 2/4

23:05-20:25

1 stop27h 20m

London Heathrow

Sun 19/4

20:25-21:50

1 stop19h 25m

£625

Chiang MaiLondon

CNX - LHR

CNXLHR

Chiang Mai

Thu 5/2

16:25-17:30

2 stops32h 05m

London Heathrow

Fri 20/2

06:20-22:20

2 stops33h 00m

£628

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 6% 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

15h 15m

Direct flights

None
The fastest flight from Chiang Mai to London Heathrow Airport takes 15h 15m
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 15h 15m.

  • 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 £511Free CancellationRating
7.2
138 reviews
Search Air China flights
Etihad AirwaysPriceFrom £565Free CancellationRating
7.3
1,374 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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