Which stopover airport has the shortest travel time from London Heathrow Airport to Chiang Mai?

Flights connecting via Bangkok (BKK) have the shortest average one-way travel time: 15h 00m.

Which airport is the most popular for stopovers for flights between London Heathrow Airport and Chiang Mai?

Bangkok (BKK) was the most common stop: 53% of momondo users choosing one-stop flights on this route connected there.

Which airlines fly to Chiang Mai?

Thai Airways, Etihad Airways and Air China are the top three most popular airlines that fly to Chiang Mai from London Heathrow Airport according to our data. Thai Airways is the first choice among our users, with 40% of people opting to fly with this airline when travelling to Chiang Mai. Keep in mind that there are 7 different airlines that fly to Chiang Mai on a routine basis, so you have a few additional options to choose from.

Which stopover airport has the shortest connection time from London Heathrow Airport to Chiang Mai?

Bangkok (BKK) has the shortest average stopover time for this route: 2h 18m.

What is the cheapest airline that flies from London Heathrow to Chiang Mai?

Air China and China Eastern are the most popular carriers operating from London Heathrow to Chiang Mai

Which stopover airport offers the lowest fares from London Heathrow Airport to Chiang Mai?

Flights via Beijing (PEK) offer the lowest average return price of £541.

When did momondo last update prices for flights from London Heathrow Airport to Chiang Mai Airport?

Prices for flights from London Heathrow Airport to Chiang Mai Airport refresh daily.

How many operators does momondo search for flights from London Heathrow Airport to Chiang Mai Airport?

There are 7 operators available for flights from London Heathrow Airport to Chiang Mai Airport as of July 2026.

How old do you have to be to fly from London Heathrow Airport to Chiang Mai Airport?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from London Heathrow Airport to Chiang Mai Airport.

What documentation or ID do you need to fly to Chiang Mai Airport?

The necessary travel and health documents for your Chiang Mai Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

£271 Cheap Flights from London Heathrow Airport to Chiang Mai in 2026

Q: What is the typical price of a round-trip flight between London Heathrow Airport and Chiang Mai?

Prices are currently low for flights on this route. Typical prices usually range from £763 to £1,277. The lowest price recently found on this route was £610.

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Find the cheapest flights from London Heathrow Airport to Chiang Mai

Return

One-way

Last minute

Cheap return flights

Enter your travel dates to find the best prices.

12:10 - 13:45

LHR

CNX

19h 35m

2 stops

20:00 - 07:55

CNX

LHR

41h 55m

2 stops

£610SWISS

Fri, 18 Sep - Sun, 27 Sep

21:45 - 09:20

LHR

CNX

29h 35m

2 stops

09:10 - 06:40

CNX

LHR

28h 30m

1 stop

£613Etihad Airways

Sat, 29 Aug - Wed, 28 Oct

21:45 - 09:20

LHR

CNX

29h 35m

2 stops

09:10 - 06:40

CNX

LHR

28h 30m

1 stop

£615Etihad Airways

Sat, 29 Aug - Wed, 28 Oct

21:45 - 11:15

LHR

CNX

31h 30m

2 stops

11:55 - 07:00

CNX

LHR

25h 05m

2 stops

£617Etihad Airways

Sun, 6 Sep - Fri, 25 Sep

21:45 - 09:20

LHR

CNX

29h 35m

2 stops

10:10 - 07:00

CNX

LHR

26h 50m

2 stops

£618Etihad Airways

Sat, 5 Sep - Sat, 12 Sep

21:20 - 13:25

LHR

CNX

34h 05m

1 stop

14:55 - 18:40

CNX

LHR

33h 45m

1 stop

£619China Eastern

Fri, 2 Oct - Fri, 16 Oct

19:30 - 19:10

LHR

CNX

17h 40m

2 stops

10:10 - 11:15

CNX

LHR

32h 05m

2 stops

£620Multiple Airlines

Tue, 13 Oct - Tue, 10 Nov

21:45 - 09:20

LHR

CNX

29h 35m

2 stops

08:50 - 12:05

CNX

LHR

34h 15m

1 stop

£621Etihad Airways

Sat, 29 Aug - Wed, 28 Oct

14:45 - 09:20

LHR

CNX

36h 35m

2 stops

08:50 - 14:30

CNX

LHR

36h 40m

1 stop

£624Etihad Airways

Mon, 19 Oct - Wed, 11 Nov

20:05 - 13:45

LHR

CNX

34h 40m

2 stops

10:10 - 08:05

CNX

LHR

28h 55m

2 stops

£625SWISS

Sat, 7 Nov - Thu, 19 Nov

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SWISS flights from London Heathrow Airport to Chiang Mai

Our best SWISS deals on London Heathrow Airport to Chiang Mai flight tickets

SWISS

18 Sept

LHR12:10London Heathrow

19h 35m

2 stops

CNX13:45Chiang Mai

27 Sept

CNX20:00Chiang Mai

41h 55m

2 stops

LHR07:55London Heathrow

£610

SWISS

7 Nov

LHR20:05London Heathrow

34h 40m

2 stops

CNX13:45Chiang Mai

19 Nov

CNX10:10Chiang Mai

28h 55m

2 stops

LHR08:05London Heathrow

£625

SWISS

7 Nov

LHR20:05London Heathrow

34h 40m

2 stops

CNX13:45Chiang Mai

20 Nov

CNX10:10Chiang Mai

28h 55m

2 stops

LHR08:05London Heathrow

£640

Etihad Airways flights from London Heathrow Airport to Chiang Mai

Our best Etihad Airways deals on London Heathrow Airport to Chiang Mai flight tickets

Etihad Airways

29 Aug

LHR21:45London Heathrow

29h 35m

2 stops

CNX09:20Chiang Mai

28 Oct

CNX09:10Chiang Mai

28h 30m

1 stop

LHR06:40London Heathrow

£613

Etihad Airways

6 Sept

LHR21:45London Heathrow

31h 30m

2 stops

CNX11:15Chiang Mai

25 Sept

CNX11:55Chiang Mai

25h 05m

2 stops

LHR07:00London Heathrow

£617

Etihad Airways

5 Sept

LHR21:45London Heathrow

29h 35m

2 stops

CNX09:20Chiang Mai

12 Sept

CNX10:10Chiang Mai

26h 50m

2 stops

LHR07:00London Heathrow

£618

momondo Fare Finder

Use the filters below to find and compare flights from London Heathrow Airport to Chiang Mai that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonChiang Mai

LHR - CNX

LHRCNX

London Heathrow

Fri 18/9

12:10-13:45

2 stops19h 35m

Chiang Mai

Sun 27/9

20:00-07:55

2 stops41h 55m

£610

LondonChiang Mai

LHR - CNX

LHRCNX

London Heathrow

Sat 29/8

21:45-09:20

2 stops29h 35m

Chiang Mai

Wed 28/10

09:10-06:40

1 stop28h 30m

£613

LondonChiang Mai

LHR - CNX

LHRCNX

London Heathrow

Sat 29/8

21:45-09:20

2 stops29h 35m

Chiang Mai

Wed 28/10

09:10-06:40

1 stop28h 30m

£615

LondonChiang Mai

LHR - CNX

LHRCNX

London Heathrow

Sun 6/9

21:45-11:15

2 stops31h 30m

Chiang Mai

Fri 25/9

11:55-07:00

2 stops25h 05m

£617

LondonChiang Mai

LHR - CNX

LHRCNX

London Heathrow

Sat 5/9

21:45-09:20

2 stops29h 35m

Chiang Mai

Sat 12/9

10:10-07:00

2 stops26h 50m

£618

LondonChiang Mai

LHR - CNX

LHRCNX

London Heathrow

Fri 2/10

21:20-13:25

1 stop34h 05m

Chiang Mai

Fri 16/10

14:55-18:40

1 stop33h 45m

£619

Fastest return journey

LondonChiang Mai

LHR - CNX

LHRCNX

London Heathrow

Tue 13/10

19:30-19:10

2 stops17h 40m

Chiang Mai

Tue 10/11

10:10-11:15

2 stops32h 05m

£620

LondonChiang Mai

LHR - CNX

LHRCNX

London Heathrow

Sat 29/8

21:45-09:20

2 stops29h 35m

Chiang Mai

Wed 28/10

08:50-12:05

1 stop34h 15m

£621

LondonChiang Mai

LHR - CNX

LHRCNX

London Heathrow

Mon 19/10

14:45-09:20

2 stops36h 35m

Chiang Mai

Wed 11/11

08:50-14:30

1 stop36h 40m

£624

LondonChiang Mai

LHR - CNX

LHRCNX

London Heathrow

Sat 7/11

20:05-13:45

2 stops34h 40m

Chiang Mai

Thu 19/11

10:10-08:05

2 stops28h 55m

£625

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from London Heathrow Airport to Chiang Mai

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

Prices

Airlines

Stopovers

What is the typical price of a round-trip flight between London Heathrow Airport and Chiang Mai?

What is the cheapest month to fly to Chiang Mai?

The month of November is, on average, the cheapest month to fly to Chiang Mai from London Heathrow Airport, with most prices found around £563. If you aren’t able to travel during the month of November, then book flights to Chiang Mai from London Heathrow Airport during May instead. Flights to Chiang Mai in May, while not as cheap as those in November, still average around £567.

How far in advance should I book a flight from London Heathrow Airport to Chiang Mai?

You are more likely to see cheaper flights to Chiang Mai from London Heathrow Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Chiang Mai for around £741 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Chiang Mai from London Heathrow Airport for as low as £671 on momondo.

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

You could potentially save up to 18% on your flight if you consider stops on a London Heathrow Airport to Chiang Mai flight.

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

As of July 2026, prices for London Heathrow Airport to Chiang Mai flights are approximately 14% cheaper when compared to flights at the same time last year.

When to book flights from London Heathrow Airport to Chiang Mai

Are you open to changing your travel dates? Check out the ideal times to fly from London Heathrow Airport to Chiang Mai according to our flight data. Find out which month and days have the cheapest flights.

Estimated return price

Cheap London Heathrow Airport to Chiang Mai (LHR to CNX) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from London Heathrow Airport to Chiang Mai

Fastest flight time	14h 15m
Direct flights	None

The fastest flight from London Heathrow Airport to Chiang Mai takes 14h 15m

There are no direct flights from London Heathrow Airport to Chiang Mai. There are no popular flight routes from London Heathrow Airport to Chiang Mai.

Search flight deals

Frequently asked questions about flying from London Heathrow Airport to Chiang Mai

How far is London Heathrow to Chiang Mai by plane?
A flight from London Heathrow to Chiang Mai will travel around 5597.7 mi. In terms of flight time, this usually takes a little over 14h 15m.
When did momondo last update prices for flights from London Heathrow Airport to Chiang Mai Airport?
Prices for flights from London Heathrow Airport to Chiang Mai Airport refresh daily.
How many operators does momondo search for flights from London Heathrow Airport to Chiang Mai Airport?
There are 7 operators available for flights from London Heathrow Airport to Chiang Mai Airport as of July 2026.
How old do you have to be to fly from London Heathrow Airport to Chiang Mai Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from London Heathrow Airport to Chiang Mai Airport.
What documentation or ID do you need to fly to Chiang Mai Airport?
The necessary travel and health documents for your Chiang Mai Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular airline from London Heathrow Airport to Chiang Mai?
Based on momondo bookings for this flight route, the most popular airline on flight routes from London Heathrow Airport to Chiang Mai is Etihad Airways (31% of total bookings). The next most popular airlines are Thai Airways (30%), Air China (24%), and China Eastern (6%).

Best airlines flying from London Heathrow Airport to Chiang Mai

Compare and see reviews for airlines that fly from London Heathrow Airport to Chiang Mai with momondo

Airline	Rating	Free Cancellation	Price
China Eastern	PriceFrom £376	Free Cancellation	Rating 7.3 228 reviews	Search China Eastern flights
Air China	PriceFrom £392	Free Cancellation	Rating 7.4 156 reviews	Search Air China flights
Malaysia Airlines	PriceFrom £506	Free Cancellation	Rating 7.3 313 reviews	Search Malaysia Airlines flights
Etihad Airways	PriceFrom £529	Free Cancellation	Rating 7.3 1,480 reviews	Search Etihad Airways flights
Austrian Airlines	PriceFrom £557	Free Cancellation	Rating 7.6 947 reviews	Search Austrian Airlines flights
EVA Air	PriceFrom £747	Free Cancellation	Rating 8.5 1,501 reviews	Search EVA Air flights
Thai Airways	PriceFrom £763	Free Cancellation	Rating 7.9 409 reviews	Search Thai Airways flights

Why use momondo?

Why should I use momondo to find a flight deal from London to Chiang Mai?

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 London to Chiang Mai for you.

Can I find flights from London to Chiang Mai with flexible booking policies on momondo?

Flights from London to Chiang Mai 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 London to Chiang Mai?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Chiang Mai from London.

I’m not ready to book a flight from London to Chiang Mai right now. Can momondo alert me if prices change?

If you are not ready to book a flight from London to Chiang Mai now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Chiang Mai and let you know when they change.

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Cheap flights from London Heathrow Airport to Chiang Mai from £271

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SWISS flights from London Heathrow Airport to Chiang Mai

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momondo Fare Finder

Use the filters below to find and compare flights from London Heathrow Airport to Chiang Mai that are best for you.

See travel insights to Chiang Mai from

How to get the cheapest flight ticket from London Heathrow Airport to Chiang Mai

What is the typical price of a round-trip flight between London Heathrow Airport and Chiang Mai?

What is the cheapest month to fly to Chiang Mai?

How far in advance should I book a flight from London Heathrow Airport to Chiang Mai?

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

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

What is the cheapest airline that flies from London Heathrow to Chiang Mai?

Which airlines fly to Chiang Mai?

Which airport is the most popular for stopovers for flights between London Heathrow Airport and Chiang Mai?

Which stopover airport offers the lowest fares from London Heathrow Airport to Chiang Mai?

Which stopover airport has the shortest travel time from London Heathrow Airport to Chiang Mai?

Which stopover airport has the shortest connection time from London Heathrow Airport to Chiang Mai?

When to book flights from London Heathrow Airport to Chiang Mai

Cheap London Heathrow Airport to Chiang Mai (LHR to CNX) flight deals and tips

Fastest flight time

Direct flights

Frequently asked questions about flying from London Heathrow Airport to Chiang Mai

Best airlines flying from London Heathrow Airport to Chiang Mai

Compare and see reviews for airlines that fly from London Heathrow Airport to Chiang Mai with momondo

Why use momondo?

An easier way to manage your Chiang Mai trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Thailand

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Fly your favourite airline to Chiang Mai

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to Chiang Mai

List of cabin classes available on flights landing in Chiang Mai. Availability may vary depending on flight origin and airline.

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