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Cheap flights from Chiang Mai to London from £192

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 14/12. 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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Find the cheapest flights from Chiang Mai to London (CNX-LON)

Cheap return flights

Logo
18:50 - 19:00CNX-LHR
30h 10m1 stop
Logo
22:40 - 21:50LHR-CNX
17h 10m1 stop
£526
Find Deal
Sat, 18 Oct - Sat, 25 Oct
China Eastern Logo
14:55 - 06:30CNX-LGW
21h 35m1 stop
China Eastern Logo
10:30 - 14:20LGW-CNX
20h 50m1 stop
£561China Eastern
Find Deal
Sun, 19 Oct - Sun, 26 Oct
Air China Logo
23:05 - 06:35CNX-LGW
37h 30m1 stop
Air China Logo
12:35 - 21:50LGW-CNX
27h 15m1 stop
£677Air China
Find Deal
Sat, 18 Oct - Sat, 25 Oct
Air China Logo
23:05 - 17:50CNX-LHR
25h 45m1 stop
Air China Logo
17:40 - 21:50LHR-CNX
21h 10m1 stop
£691Air China
Find Deal
Tue, 3 Mar - Fri, 13 Mar
China Airlines Logo
11:25 - 16:55CNX-LHR
36h 30m1 stop
China Airlines Logo
21:15 - 10:25LHR-CNX
30h 10m1 stop
£741China Airlines
Find Deal
Tue, 3 Mar - Fri, 13 Mar
China Airlines Logo
11:25 - 16:55CNX-LHR
36h 30m1 stop
China Airlines Logo
21:15 - 10:25LHR-CNX
30h 10m1 stop
£744China Airlines
Find Deal
Tue, 3 Mar - Fri, 13 Mar
Emirates Logo
10:10 - 11:40CNX-LGW
32h 30m2 stops
Emirates Logo
13:35 - 19:00LGW-CNX
22h 25m2 stops
£794Emirates
Find Deal
Tue, 3 Mar - Fri, 13 Mar
Emirates Logo
19:45 - 20:50CNX-LGW
32h 05m2 stops
Emirates Logo
09:40 - 19:00LGW-CNX
26h 20m2 stops
£798Emirates
Find Deal
Tue, 3 Mar - Fri, 13 Mar
Singapore Airlines Logo
12:00 - 06:25CNX-LGW
49h 25m1 stop
Singapore Airlines Logo
09:20 - 15:35LGW-CNX
23h 15m1 stop
£924Singapore Airlines
Find Deal
Tue, 3 Mar - Fri, 13 Mar
Singapore Airlines Logo
16:35 - 06:25CNX-LGW
44h 50m1 stop
Singapore Airlines Logo
09:20 - 15:35LGW-CNX
23h 15m1 stop
£927Singapore Airlines
Find Deal
Tue, 3 Mar - Fri, 13 Mar

Air China flights from Chiang Mai to London

Our best Air China deals on Chiang Mai to London flight tickets
Air China
18 Oct
CNX23:05Chiang Mai
37h 30m
1 stop
LGW06:35London Gatwick
25 Oct
LGW12:35London Gatwick
27h 15m
1 stop
CNX21:50Chiang Mai
£677
Find similar
Air China
3 Mar
CNX23:05Chiang Mai
25h 45m
1 stop
LHR17:50London Heathrow
13 Mar
LHR17:40London Heathrow
21h 10m
1 stop
CNX21:50Chiang Mai
£691
Find similar
Air China
20 Dec
CNX23:05Chiang Mai
25h 45m
1 stop
LHR17:50London Heathrow
3 Jan
LHR17:40London Heathrow
21h 10m
1 stop
CNX21:50Chiang Mai
£703
Find similar

China Airlines flights from Chiang Mai to London

Our best China Airlines deals on Chiang Mai to London flight tickets
China Airlines
3 Mar
CNX11:25Chiang Mai
36h 30m
1 stop
LHR16:55London Heathrow
13 Mar
LHR21:15London Heathrow
30h 10m
1 stop
CNX10:25Chiang Mai
£741
Find similar
China Airlines
3 Mar
CNX11:25Chiang Mai
36h 30m
1 stop
LHR16:55London Heathrow
13 Mar
LHR21:15London Heathrow
30h 10m
1 stop
CNX10:25Chiang Mai
£744
Find similar
China Airlines
12 Sept
CNX11:20Chiang Mai
35h 10m
1 stop
LHR16:30London Heathrow
22 Sept
LHR21:10London Heathrow
31h 10m
1 stop
CNX10:20Chiang Mai
£797
Find similar

momondo Fare Finder

 
Customise your flight search to find flights from Chiang Mai to London 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 5 September 2025.
Use the filters below to find and compare flights from Chiang Mai to London that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Chiang MaiLondon

CNX - LHR

CNXLHR

Chiang Mai

Sat 18/10

18:50-19:00

1 stop30h 10m

London Heathrow

Sat 25/10

22:40-21:50

1 stop17h 10m

£526

Chiang MaiLondon

CNX - LGW

CNXLGW

Chiang Mai

Sun 19/10

14:55-06:30

1 stop21h 35m

London Gatwick

Sun 26/10

10:30-14:20

1 stop20h 50m

£561

Chiang MaiLondon

CNX - LGW

CNXLGW

Chiang Mai

Sat 18/10

23:05-06:35

1 stop37h 30m

London Gatwick

Sat 25/10

12:35-21:50

1 stop27h 15m

£677

Chiang MaiLondon

CNX - LHR

CNXLHR

Chiang Mai

Tue 3/3

23:05-17:50

1 stop25h 45m

London Heathrow

Fri 13/3

17:40-21:50

1 stop21h 10m

£691

Chiang MaiLondon

CNX - LHR

CNXLHR

Chiang Mai

Tue 3/3

11:25-16:55

1 stop36h 30m

London Heathrow

Fri 13/3

21:15-10:25

1 stop30h 10m

£741

Chiang MaiLondon

CNX - LHR

CNXLHR

Chiang Mai

Tue 3/3

11:25-16:55

1 stop36h 30m

London Heathrow

Fri 13/3

21:15-10:25

1 stop30h 10m

£744

Chiang MaiLondon

CNX - LGW

CNXLGW

Chiang Mai

Tue 3/3

10:10-11:40

2 stops32h 30m

London Gatwick

Fri 13/3

13:35-19:00

2 stops22h 25m

£794

Chiang MaiLondon

CNX - LGW

CNXLGW

Chiang Mai

Tue 3/3

19:45-20:50

2 stops32h 05m

London Gatwick

Fri 13/3

09:40-19:00

2 stops26h 20m

£798

Chiang MaiLondon

CNX - LGW

CNXLGW

Chiang Mai

Tue 3/3

12:00-06:25

1 stop49h 25m

London Gatwick

Fri 13/3

09:20-15:35

1 stop23h 15m

£924

Chiang MaiLondon

CNX - LGW

CNXLGW

Chiang Mai

Tue 3/3

16:35-06:25

1 stop44h 50m

London Gatwick

Fri 13/3

09:20-15:35

1 stop23h 15m

£927

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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 February. Flight prices, which tend to average around £511, are often lower during this time because this is during the off-season. The month of October is another great option to travel to London, with average flight prices from Chiang Mai averaging around £537.

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 £474. 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 £1,088.

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 £502. Flights in the morning are often more expensive, with an average ticket price of £1,088.

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

You could potentially save up to 9% on your flight if you consider stops on a Chiang Mai to London flight.

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

As of September 2025, prices for Chiang Mai to London flights are approximately 24% cheaper 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

Direct flights

None
There are no direct flights from Chiang Mai to London. There are no popular flight routes from Chiang Mai to London.
Search flight deals

  • 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 15h 50m.

  • 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
China EasternPriceFrom £502Free CancellationRating
7.2
165 reviews
Search China Eastern flights

Travelling to a place near London?

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Milton Keynes
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Gatwick
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Worthing
Chelmsford
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Hounslow
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Folkestone

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
London City Airport
London Gatwick Airport
London Heathrow Airport
London Luton Airport
London Southend Airport
London Stansted Airport