Which airlines fly to Chiang Rai?

Thai Airways, Etihad Airways and Air China are the top three most popular airlines that fly to Chiang Rai from London Heathrow Airport according to our data. Thai Airways is the first choice among our users, with 42% of people opting to fly with this airline when travelling to Chiang Rai. Keep in mind that there are 8 different airlines that fly to Chiang Rai on a routine basis, so you have a few additional options to choose from.

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

Prices for flights from London Heathrow Airport to Chiang Rai Airport are updated daily.

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

There is 1 operator available for flights from London Heathrow Airport to Chiang Rai Airport as of June 2026.

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

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from London Heathrow Airport to Chiang Rai Airport.

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

The necessary travel and health documents for your Chiang Rai 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.

£730 Cheap Flights from London Heathrow Airport to Chiang Rai in 2026

Voted winner of Europe's Best Travel App 2023

Find the cheapest flights from London Heathrow Airport to Chiang Rai

Round-trip

One-way

Cheap return flights

Enter your travel dates to find the best prices.

08:35 - 09:40

LHR

CEI

18h 05m

2 stops

14:25 - 07:20

CEI

LHR

23h 55m

2 stops

£738Multiple Airlines

Wed, 18 Nov - Sun, 6 Dec

08:05 - 09:40

LHR

CEI

18h 35m

2 stops

14:25 - 07:20

CEI

LHR

23h 55m

2 stops

£767Multiple Airlines

Sun, 15 Nov - Sun, 6 Dec

16:00 - 18:20

LHR

CEI

20h 20m

2 stops

18:55 - 13:15

CEI

LHR

24h 20m

2 stops

£776Multiple Airlines

Fri, 26 Jun - Tue, 30 Jun

08:25 - 13:10

LHR

CEI

22h 45m

2 stops

18:55 - 13:15

CEI

LHR

24h 20m

2 stops

£878Multiple Airlines

Wed, 1 Jul - Sat, 4 Jul

21:20 - 13:55

LHR

CEI

33h 35m

1 stop

18:55 - 19:05

CEI

LHR

31h 10m

1 stop

£919Multiple Airlines

Wed, 18 Nov - Sun, 6 Dec

21:20 - 09:40

LHR

CEI

29h 20m

1 stop

18:55 - 19:05

CEI

LHR

31h 10m

1 stop

£928Multiple Airlines

Sun, 15 Nov - Sun, 6 Dec

07:05 - 15:55

LHR

CEI

25h 50m

2 stops

08:30 - 19:05

CEI

LHR

17h 35m

1 stop

£929Multiple Airlines

Tue, 17 Nov - Sat, 5 Dec

09:55 - 15:55

LHR

CEI

23h 00m

2 stops

08:30 - 19:05

CEI

LHR

17h 35m

1 stop

£957Multiple Airlines

Tue, 17 Nov - Thu, 3 Dec

10:35 - 15:55

LHR

CEI

22h 20m

2 stops

08:30 - 19:05

CEI

LHR

17h 35m

1 stop

£969Multiple Airlines

Sat, 14 Nov - Sat, 5 Dec

10:35 - 15:55

LHR

CEI

22h 20m

2 stops

08:30 - 19:05

CEI

LHR

17h 35m

1 stop

£974Multiple Airlines

Sat, 14 Nov - Thu, 3 Dec

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Singapore Airlines flights from London Heathrow Airport to Chiang Rai

Our best Singapore Airlines deals on London Heathrow Airport to Chiang Rai flight tickets

Singapore Airlines

13 Nov

LHR10:40London Heathrow

24h 45m

1 stop

CEI18:25Chiang Rai

5 Dec

CEI19:00Chiang Rai

27h 20m

1 stop

LHR15:20London Heathrow

£1,150

Singapore Airlines

14 Nov

LHR20:35London Heathrow

38h 50m

1 stop

CEI18:25Chiang Rai

7 Dec

CEI19:00Chiang Rai

27h 20m

1 stop

LHR15:20London Heathrow

£1,280

momondo Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonChiang Rai

LHR - CEI

LHRCEI

London Heathrow

Wed 18/11

08:35-09:40

2 stops18h 05m

Chiang Rai

Sun 6/12

14:25-07:20

2 stops23h 55m

£738

LondonChiang Rai

LHR - CEI

LHRCEI

London Heathrow

Sun 15/11

08:05-09:40

2 stops18h 35m

Chiang Rai

Sun 6/12

14:25-07:20

2 stops23h 55m

£767

LondonChiang Rai

LHR - CEI

LHRCEI

London Heathrow

Fri 26/6

16:00-18:20

2 stops20h 20m

Chiang Rai

Tue 30/6

18:55-13:15

2 stops24h 20m

£776

LondonChiang Rai

LHR - CEI

LHRCEI

London Heathrow

Wed 1/7

08:25-13:10

2 stops22h 45m

Chiang Rai

Sat 4/7

18:55-13:15

2 stops24h 20m

£878

LondonChiang Rai

LHR - CEI

LHRCEI

London Heathrow

Wed 18/11

21:20-13:55

1 stop33h 35m

Chiang Rai

Sun 6/12

18:55-19:05

1 stop31h 10m

£919

LondonChiang Rai

LHR - CEI

LHRCEI

London Heathrow

Sun 15/11

21:20-09:40

1 stop29h 20m

Chiang Rai

Sun 6/12

18:55-19:05

1 stop31h 10m

£928

LondonChiang Rai

LHR - CEI

LHRCEI

London Heathrow

Tue 17/11

07:05-15:55

2 stops25h 50m

Chiang Rai

Sat 5/12

08:30-19:05

1 stop17h 35m

£929

LondonChiang Rai

LHR - CEI

LHRCEI

London Heathrow

Tue 17/11

09:55-15:55

2 stops23h 00m

Chiang Rai

Thu 3/12

08:30-19:05

1 stop17h 35m

£957

Fastest return journey

LondonChiang Rai

LHR - CEI

LHRCEI

London Heathrow

Sat 14/11

10:35-15:55

2 stops22h 20m

Chiang Rai

Sat 5/12

08:30-19:05

1 stop17h 35m

£969

LondonChiang Rai

LHR - CEI

LHRCEI

London Heathrow

Sat 14/11

10:35-15:55

2 stops22h 20m

Chiang Rai

Thu 3/12

08:30-19:05

1 stop17h 35m

£974

Flights are sorted by cheapest return flights first.

Showing 1-10 of 13 resultsSorted by cheapest first

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

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

What is the cheapest month to fly to Chiang Rai?

If you aren’t able to travel during the month of July, then book flights to Chiang Rai from London Heathrow Airport during June instead. Flights to Chiang Rai in June, while not as cheap as those in July, still average around £0.

When to book flights from London Heathrow Airport to Chiang Rai

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

Estimated return price

Cheap London Heathrow Airport to Chiang Rai (LHR to CEI) flight deals and tips

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

Fastest flight time	18h 05m
Direct flights	None

The fastest flight from London Heathrow Airport to Chiang Rai takes 18h 05m

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

Search flight deals

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

How far is London Heathrow to Chiang Rai by plane?
The straight-line distance from London Heathrow to Chiang Rai is 5571.3 mi. Typically, this will take 18h 05m by plane in normal conditions.
When did momondo last update prices for flights from London Heathrow Airport to Chiang Rai Airport?
Prices for flights from London Heathrow Airport to Chiang Rai Airport are updated daily.
How many operators does momondo search for flights from London Heathrow Airport to Chiang Rai Airport?
There is 1 operator available for flights from London Heathrow Airport to Chiang Rai Airport as of June 2026.
How old do you have to be to fly from London Heathrow Airport to Chiang Rai Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from London Heathrow Airport to Chiang Rai Airport.
What documentation or ID do you need to fly to Chiang Rai Airport?
The necessary travel and health documents for your Chiang Rai 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 Rai?
momondo data reveals that the most frequently booked airline on the route from London Heathrow Airport to Chiang Rai is Thai Airways, representing 100% of all bookings.

Best airlines flying from London Heathrow Airport to Chiang Rai

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

Airline	Rating	Free Cancellation	Price
Thai Airways	PriceFrom £780	Free Cancellation	Rating 7.9 406 reviews		Search Thai Airways flights

Why use momondo?

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

Finding the right flight to Chiang Rai from London is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Chiang Rai quick and easy, saving you time and money.

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

momondo does allow users to show only those flights to Chiang Rai from London which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from London to Chiang Rai?

momondo provides multiple filters to help you find the best flight to Chiang Rai from London. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Price alerts on flights to Chiang Rai from London 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.