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Cheap flights from Chiang Mai to London from £181

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 8/12. 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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Cheap return flights

Enter your travel dates to find the best prices.
China Eastern Logo
16:25 - 14:00CNX-LGW
52h 35m3 stops
China Eastern Logo
10:30 - 09:05LGW-CNX
39h 35m2 stops
£512China Eastern
Find Deal
Thu, 5 Mar - Mon, 9 Mar
Multiple Airlines Logo
08:50 - 18:10CNX-LHR
16h 20m1 stop
Multiple Airlines Logo
06:40 - 20:45LHR-CNX
31h 05m2 stops
£536Multiple Airlines
Find Deal
Thu, 5 Mar - Fri, 20 Mar
Multiple Airlines Logo
08:50 - 18:10CNX-LHR
16h 20m1 stop
Multiple Airlines Logo
10:35 - 16:05LHR-CNX
22h 30m2 stops
£537Multiple Airlines
Find Deal
Thu, 5 Mar - Thu, 19 Mar
China Eastern Logo
10:05 - 06:30CNX-LGW
27h 25m2 stops
China Eastern Logo
10:30 - 09:05LGW-CNX
39h 35m2 stops
£545China Eastern
Find Deal
Thu, 5 Mar - Mon, 9 Mar
Etihad Airways Logo
08:50 - 18:10CNX-LHR
16h 20m1 stop
Etihad Airways Logo
20:55 - 06:05LHR-CNX
26h 10m1 stop
£589Etihad Airways
Find Deal
Thu, 5 Mar - Thu, 19 Mar
Etihad Airways Logo
08:50 - 18:10CNX-LHR
16h 20m1 stop
Etihad Airways Logo
13:55 - 06:05LHR-CNX
33h 10m1 stop
£594Etihad Airways
Find Deal
Thu, 5 Mar - Fri, 20 Mar
SWISS Logo
10:10 - 18:45CNX-LCY
39h 35m2 stops
SWISS Logo
19:10 - 13:45LCY-CNX
35h 35m2 stops
£831SWISS
Find Deal
Thu, 5 Mar - Mon, 9 Mar
SWISS Logo
10:10 - 12:55CNX-LCY
33h 45m2 stops
SWISS Logo
09:15 - 13:45LCY-CNX
21h 30m2 stops
£877SWISS
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Mon, 2 Mar - Thu, 19 Mar
KLM Logo
20:00 - 07:55CNX-LCY
41h 55m2 stops
KLM Logo
10:00 - 13:45LCY-CNX
21h 45m2 stops
£1,269KLM
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Thu, 30 Apr - Sat, 16 May
KLM Logo
20:00 - 07:55CNX-LCY
41h 55m2 stops
KLM Logo
10:00 - 19:10LCY-CNX
27h 10m2 stops
£1,411KLM
Find Deal
Thu, 30 Apr - Thu, 14 May

Etihad Airways flights from Chiang Mai to London

Our best Etihad Airways deals on Chiang Mai to London flight tickets
Etihad Airways
5 Mar
CNX08:50Chiang Mai
16h 20m
1 stop
LHR18:10London Heathrow
19 Mar
LHR20:55London Heathrow
26h 10m
1 stop
CNX06:05Chiang Mai
£589
Find similar
Etihad Airways
5 Mar
CNX08:50Chiang Mai
16h 20m
1 stop
LHR18:10London Heathrow
20 Mar
LHR13:55London Heathrow
33h 10m
1 stop
CNX06:05Chiang Mai
£594
Find similar

Malaysia Airlines flights from Chiang Mai to London

Our best Malaysia Airlines deals on Chiang Mai to London flight tickets
Malaysia Airlines
3 Mar
CNX14:50Chiang Mai
31h 35m
1 stop
LHR15:25London Heathrow
13 Mar
LHR10:25London Heathrow
20h 25m
1 stop
CNX13:50Chiang Mai
£623
Find similar
Malaysia Airlines
3 Mar
CNX14:50Chiang Mai
31h 35m
1 stop
LHR15:25London Heathrow
13 Mar
LHR10:25London Heathrow
20h 25m
1 stop
CNX13:50Chiang Mai
£645
Find similar
Malaysia Airlines
15 Mar
CNX12:25Chiang Mai
34h 00m
1 stop
LHR15:25London Heathrow
25 Jun
LHR11:00London Heathrow
18h 40m
1 stop
CNX11:40Chiang Mai
£656
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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 4 December 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 - LGW

CNXLGW

Chiang Mai

Thu 5/3

16:25-14:00

3 stops52h 35m

London Gatwick

Mon 9/3

10:30-09:05

2 stops39h 35m

£512

Chiang MaiLondon

CNX - LHR

CNXLHR

Chiang Mai

Thu 5/3

08:50-18:10

1 stop16h 20m

London Heathrow

Fri 20/3

06:40-20:45

2 stops31h 05m

£536

Chiang MaiLondon

CNX - LHR

CNXLHR

Chiang Mai

Thu 5/3

08:50-18:10

1 stop16h 20m

London Heathrow

Thu 19/3

10:35-16:05

2 stops22h 30m

£537

Chiang MaiLondon

CNX - LGW

CNXLGW

Chiang Mai

Thu 5/3

10:05-06:30

2 stops27h 25m

London Gatwick

Mon 9/3

10:30-09:05

2 stops39h 35m

£545

Chiang MaiLondon

CNX - LHR

CNXLHR

Chiang Mai

Thu 5/3

08:50-18:10

1 stop16h 20m

London Heathrow

Thu 19/3

20:55-06:05

1 stop26h 10m

£589

Chiang MaiLondon

CNX - LHR

CNXLHR

Chiang Mai

Thu 5/3

08:50-18:10

1 stop16h 20m

London Heathrow

Fri 20/3

13:55-06:05

1 stop33h 10m

£594

Chiang MaiLondon

CNX - LCY

CNXLCY

Chiang Mai

Thu 5/3

10:10-18:45

2 stops39h 35m

London City

Mon 9/3

19:10-13:45

2 stops35h 35m

£831

Chiang MaiLondon

CNX - LCY

CNXLCY

Chiang Mai

Mon 2/3

10:10-12:55

2 stops33h 45m

London City

Thu 19/3

09:15-13:45

2 stops21h 30m

£877

Chiang MaiLondon

CNX - LCY

CNXLCY

Chiang Mai

Thu 30/4

20:00-07:55

2 stops41h 55m

London City

Sat 16/5

10:00-13:45

2 stops21h 45m

£1,269

Chiang MaiLondon

CNX - LCY

CNXLCY

Chiang Mai

Thu 30/4

20:00-07:55

2 stops41h 55m

London City

Thu 14/5

10:00-19:10

2 stops27h 10m

£1,411

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 typical price of a round-trip flight between Chiang Mai and London?

What is the cheapest month to fly to London?

The cheapest month to fly to London from Chiang Mai is in October. Flight prices, which tend to average around £498, are often lower during this time because this is during the off-season. The month of November is another great option to travel to London, with average flight prices from Chiang Mai averaging around £547.

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 £479. 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 £1,100.

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 £507. Flights in the morning are often more expensive, with an average ticket price of £1,100.

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

You could potentially save up to 19% 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 December 2025, prices for Chiang Mai to London flights are approximately 25% 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

Fastest flight time

21h 15m

Direct flights

None
The fastest flight from Chiang Mai to London takes 21h 15m
There are no direct flights from Chiang Mai to London. There are no popular flight routes from Chiang Mai to London.
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  • 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 16h 20m.

  • 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
Air ChinaPriceFrom £517Free CancellationRating
7.2
127 reviews
Search Air China flights
China EasternPriceFrom £602Free CancellationRating
7.2
178 reviews
Search China Eastern flights
Thai AirwaysPriceFrom £890Free CancellationRating
7.8
362 reviews
Search Thai Airways flights

Travelling to a place near London?

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Milton Keynes
Luton
Gatwick
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Ilford
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Hayes
Dover
Chelmsford
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Worthing
Bedford
Ramsgate
Hounslow
Stansted

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