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Cheap flights from Chiang Mai to London from £266

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 19/5. 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
0 bags

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Find the cheapest flights from Chiang Mai to London

Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
14:10 - 21:20
CNX
-
LGW
37h 10m
3 stops
Multiple Airlines Logo
17:35 - 21:50
LGW
-
CNX
22h 15m
3 stops
£581Multiple Airlines
Sat, 23 May - Sat, 30 May
Air China Logo
23:05 - 20:25
CNX
-
LHR
27h 20m
1 stop
Air China Logo
22:40 - 21:50
LHR
-
CNX
17h 10m
1 stop
£598Air China
Mon, 1 Jun - Mon, 15 Jun
Multiple Airlines Logo
23:05 - 06:35
CNX
-
LGW
37h 30m
1 stop
Multiple Airlines Logo
11:35 - 13:25
LGW
-
CNX
19h 50m
1 stop
£625Multiple Airlines
Tue, 26 May - Tue, 9 Jun
Multiple Airlines Logo
13:40 - 19:30
CNX
-
LHR
35h 50m
2 stops
Multiple Airlines Logo
20:45 - 21:50
LHR
-
CNX
19h 05m
2 stops
£646Multiple Airlines
Thu, 7 May - Sun, 17 May
Multiple Airlines Logo
13:40 - 19:30
CNX
-
LHR
35h 50m
3 stops
Multiple Airlines Logo
20:45 - 21:50
LHR
-
CNX
19h 05m
2 stops
£651Multiple Airlines
Sun, 17 May - Sun, 24 May
Multiple Airlines Logo
15:40 - 07:05
CNX
-
LGW
21h 25m
1 stop
Multiple Airlines Logo
10:25 - 15:10
LGW
-
CNX
22h 45m
1 stop
£661Multiple Airlines
Thu, 23 Jul - Mon, 27 Jul
Multiple Airlines Logo
15:40 - 18:45
CNX
-
LHR
33h 05m
2 stops
Multiple Airlines Logo
09:30 - 15:10
LHR
-
CNX
23h 40m
2 stops
£664Multiple Airlines
Sat, 6 Jun - Sat, 13 Jun
KLM Logo
20:00 - 19:45
CNX
-
LCY
29h 45m
2 stops
KLM Logo
10:00 - 11:15
LCY
-
CNX
19h 15m
2 stops
£1,019KLM
Tue, 26 May - Tue, 9 Jun
KLM Logo
20:00 - 19:45
CNX
-
LCY
29h 45m
2 stops
KLM Logo
13:45 - 19:10
LCY
-
CNX
23h 25m
2 stops
£1,316KLM
Sun, 7 Jun - Sun, 14 Jun
KLM Logo
20:00 - 17:20
CNX
-
LCY
27h 20m
2 stops
KLM Logo
13:45 - 13:45
LCY
-
CNX
18h 00m
2 stops
£1,440KLM
Sun, 17 May - Sun, 24 May

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Oman Air flights from Chiang Mai to London

Our best Oman Air deals on Chiang Mai to London flight tickets
Oman Air
15 May
CNX12:35Chiang Mai
23h 55m
2 stops
LHR06:30London Heathrow
31 May
LHR08:25London Heathrow
21h 15m
2 stops
CNX11:40Chiang Mai
£798
Oman Air
26 Sept
CNX14:35Chiang Mai
21h 55m
2 stops
LHR06:30London Heathrow
3 Oct
LHR20:50London Heathrow
32h 50m
2 stops
CNX11:40Chiang Mai
£798
Oman Air
30 Apr
CNX14:35Chiang Mai
34h 35m
2 stops
LHR19:10London Heathrow
14 Oct
LHR20:50London Heathrow
34h 55m
2 stops
CNX13:45Chiang Mai
£819

Emirates flights from Chiang Mai to London

Our best Emirates deals on Chiang Mai to London flight tickets
Emirates
6 Jun
CNX20:00Chiang Mai
22h 35m
2 stops
LGW12:35London Gatwick
13 Jun
LGW10:05London Gatwick
21h 40m
2 stops
CNX13:45Chiang Mai
£788
Emirates
17 May
CNX20:00Chiang Mai
22h 35m
2 stops
LGW12:35London Gatwick
24 May
LGW14:35London Gatwick
22h 35m
2 stops
CNX19:10Chiang Mai
£795
Emirates
7 May
CNX20:00Chiang Mai
22h 35m
2 stops
LGW12:35London Gatwick
21 May
LGW14:35London Gatwick
22h 35m
2 stops
CNX19:10Chiang Mai
£801

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 24 April 2026.
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

Cheapest return flight

Chiang MaiLondon

CNX - LGW

CNXLGW

Chiang Mai

Sat 23/5

14:10-21:20

3 stops37h 10m

London Gatwick

Sat 30/5

17:35-21:50

3 stops22h 15m

£581

Chiang MaiLondon

CNX - LHR

CNXLHR

Chiang Mai

Mon 1/6

23:05-20:25

1 stop27h 20m

London Heathrow

Mon 15/6

22:40-21:50

1 stop17h 10m

£598

Chiang MaiLondon

CNX - LGW

CNXLGW

Chiang Mai

Tue 26/5

23:05-06:35

1 stop37h 30m

London Gatwick

Tue 9/6

11:35-13:25

1 stop19h 50m

£625

Chiang MaiLondon

CNX - LHR

CNXLHR

Chiang Mai

Thu 7/5

13:40-19:30

2 stops35h 50m

London Heathrow

Sun 17/5

20:45-21:50

2 stops19h 05m

£646

Chiang MaiLondon

CNX - LHR

CNXLHR

Chiang Mai

Sun 17/5

13:40-19:30

3 stops35h 50m

London Heathrow

Sun 24/5

20:45-21:50

2 stops19h 05m

£651
Fastest return journey

Chiang MaiLondon

CNX - LGW

CNXLGW

Chiang Mai

Thu 23/7

15:40-07:05

1 stop21h 25m

London Gatwick

Mon 27/7

10:25-15:10

1 stop22h 45m

£661

Chiang MaiLondon

CNX - LHR

CNXLHR

Chiang Mai

Sat 6/6

15:40-18:45

2 stops33h 05m

London Heathrow

Sat 13/6

09:30-15:10

2 stops23h 40m

£664

Chiang MaiLondon

CNX - LCY

CNXLCY

Chiang Mai

Tue 26/5

20:00-19:45

2 stops29h 45m

London City

Tue 9/6

10:00-11:15

2 stops19h 15m

£1,019

Chiang MaiLondon

CNX - LCY

CNXLCY

Chiang Mai

Sun 7/6

20:00-19:45

2 stops29h 45m

London City

Sun 14/6

13:45-19:10

2 stops23h 25m

£1,316

Chiang MaiLondon

CNX - LCY

CNXLCY

Chiang Mai

Sun 17/5

20:00-17:20

2 stops27h 20m

London City

Sun 24/5

13:45-13:45

2 stops18h 00m

£1,440

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

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 flights?

You could potentially save up to 1% 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 April 2026, prices for Chiang Mai to London flights are approximately 34% more expensive 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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Frequently asked questions about flying from Chiang Mai to London

  • 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 21h 15m.

  • 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 £509Free CancellationRating
7.3
148 reviews
Search Air China flights
Etihad AirwaysPriceFrom £563Free CancellationRating
7.3
1,434 reviews
Search Etihad Airways flights
China EasternPriceFrom £585Free CancellationRating
7.2
208 reviews
Search China Eastern flights

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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