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

Prices for flights from London to Chiang Rai Airport refresh daily.

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

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

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

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from London to Chiang Rai Airport.

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

The required travel and health documents for your Chiang Rai Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Chiang Rai Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

£250 Cheap Flights from London to Chiang Rai in 2026

Find the cheapest flights from London to Chiang Rai

Return

One-way

Last minute

Cheap return flights

Enter your travel dates to find the best prices.

12:35 - 19:25LGW London Gatwick-CEI Chiang Rai

24h 50m2 stops Beijing Capital Bangkok Suvarnabhumi

11:15 - 06:35CEI Chiang Rai-LGW London Gatwick

25h 20m2 stops Bangkok Suvarnabhumi Beijing Capital

£536Multiple Airlines

Mon, 12 Oct - Mon, 19 Oct

10:00 - 18:20LHR London Heathrow-CEI Chiang Rai

26h 20m2 stops Manama Bahrain Intl Bangkok Suvarnabhumi

13:40 - 15:20CEI Chiang Rai-LHR London Heathrow

31h 40m2 stops Bangkok Suvarnabhumi Manama Bahrain Intl

£672Gulf Air

Wed, 30 Sep - Wed, 14 Oct

22:05 - 18:20LHR London Heathrow-CEI Chiang Rai

38h 15m2 stops Manama Bahrain Intl Bangkok Suvarnabhumi

13:40 - 15:20CEI Chiang Rai-LHR London Heathrow

31h 40m2 stops Bangkok Suvarnabhumi Manama Bahrain Intl

£673Gulf Air

Wed, 30 Sep - Wed, 14 Oct

10:00 - 18:20LHR London Heathrow-CEI Chiang Rai

26h 20m2 stops Manama Bahrain Intl Bangkok Suvarnabhumi

10:10 - 15:20CEI Chiang Rai-LHR London Heathrow

35h 10m2 stops Bangkok Suvarnabhumi Manama Bahrain Intl

£690Gulf Air

Wed, 30 Sep - Wed, 14 Oct

22:05 - 18:20LHR London Heathrow-CEI Chiang Rai

38h 15m2 stops Manama Bahrain Intl Bangkok Suvarnabhumi

13:40 - 15:20CEI Chiang Rai-LHR London Heathrow

31h 40m2 stops Bangkok Suvarnabhumi Manama Bahrain Intl

£691Gulf Air

Wed, 30 Sep - Wed, 14 Oct

09:00 - 13:10LGW London Gatwick-CEI Chiang Rai

22h 10m2 stops Doha Hamad Intl Bangkok Suvarnabhumi

18:55 - 06:40CEI Chiang Rai-LGW London Gatwick

41h 45m2 stops Bangkok Suvarnabhumi Doha Hamad Intl

£693Multiple Airlines

Wed, 30 Sep - Wed, 14 Oct

09:00 - 13:10LGW London Gatwick-CEI Chiang Rai

22h 10m2 stops Doha Hamad Intl Bangkok Suvarnabhumi

18:55 - 06:40CEI Chiang Rai-LGW London Gatwick

41h 45m2 stops Bangkok Suvarnabhumi Doha Hamad Intl

£695Multiple Airlines

Wed, 30 Sep - Wed, 14 Oct

10:00 - 18:20LHR London Heathrow-CEI Chiang Rai

26h 20m2 stops Manama Bahrain Intl Bangkok Suvarnabhumi

13:40 - 15:20CEI Chiang Rai-LHR London Heathrow

31h 40m2 stops Bangkok Suvarnabhumi Manama Bahrain Intl

£697Gulf Air

Wed, 30 Sep - Wed, 14 Oct

21:25 - 18:20LHR London Heathrow-CEI Chiang Rai

14h 55m1 stop Bangkok Suvarnabhumi

10:15 - 19:35CEI Chiang Rai-LHR London Heathrow

16h 20m1 stop Bangkok Suvarnabhumi

£966Thai Airways

Thu, 22 Oct - Thu, 29 Oct

11:50 - 18:20LHR London Heathrow-CEI Chiang Rai

23h 30m1 stop Bangkok Suvarnabhumi

10:15 - 19:35CEI Chiang Rai-LHR London Heathrow

16h 20m1 stop Bangkok Suvarnabhumi

£1,000Thai Airways

Mon, 14 Dec - Mon, 1 Feb

Cheap last-minute flights

Enter your travel dates to find the best prices.

21:35 - 09:40LHR London Heathrow-CEI Chiang Rai

30h 05m1 stop Bangkok Suvarnabhumi

13:40 - 19:20CEI Chiang Rai-LHR London Heathrow

35h 40m1 stop Bangkok Suvarnabhumi

£913EVA Air

Mon, 14 Sep - Wed, 16 Sep

21:35 - 09:40LHR London Heathrow-CEI Chiang Rai

30h 05m1 stop Bangkok Suvarnabhumi

13:40 - 19:20CEI Chiang Rai-LHR London Heathrow

35h 40m1 stop Bangkok Suvarnabhumi

£914EVA Air

Mon, 14 Sep - Wed, 16 Sep

21:35 - 09:40LHR London Heathrow-CEI Chiang Rai

30h 05m1 stop Bangkok Suvarnabhumi

13:40 - 19:20CEI Chiang Rai-LHR London Heathrow

35h 40m1 stop Bangkok Suvarnabhumi

£915EVA Air

Mon, 14 Sep - Wed, 16 Sep

21:35 - 09:40LHR London Heathrow-CEI Chiang Rai

30h 05m1 stop Bangkok Suvarnabhumi

13:40 - 19:20CEI Chiang Rai-LHR London Heathrow

35h 40m1 stop Bangkok Suvarnabhumi

£915EVA Air

Mon, 14 Sep - Wed, 16 Sep

10:00 - 13:10LHR London Heathrow-CEI Chiang Rai

21h 10m2 stops Manama Bahrain Intl Bangkok Suvarnabhumi

13:40 - 06:55CEI Chiang Rai-LHR London Heathrow

23h 15m2 stops Bangkok Suvarnabhumi Manama Bahrain Intl

£918Gulf Air

Mon, 14 Sep - Wed, 16 Sep

10:00 - 18:20LHR London Heathrow-CEI Chiang Rai

26h 20m2 stops Manama Bahrain Intl Bangkok Suvarnabhumi

13:40 - 15:20CEI Chiang Rai-LHR London Heathrow

31h 40m2 stops Bangkok Suvarnabhumi Manama Bahrain Intl

£969Gulf Air

Mon, 14 Sep - Wed, 16 Sep

10:00 - 13:10LHR London Heathrow-CEI Chiang Rai

21h 10m2 stops Manama Bahrain Intl Bangkok Suvarnabhumi

13:40 - 06:55CEI Chiang Rai-LHR London Heathrow

23h 15m2 stops Bangkok Suvarnabhumi Manama Bahrain Intl

£971Gulf Air

Mon, 14 Sep - Wed, 16 Sep

10:00 - 13:10LHR London Heathrow-CEI Chiang Rai

21h 10m2 stops Manama Bahrain Intl Bangkok Suvarnabhumi

13:40 - 06:55CEI Chiang Rai-LHR London Heathrow

23h 15m2 stops Bangkok Suvarnabhumi Manama Bahrain Intl

£1,184Gulf Air

Mon, 14 Sep - Wed, 16 Sep

17:35 - 13:10STN London Stansted-CEI Chiang Rai

37h 35m2 stops Istanbul Bangkok Suvarnabhumi

10:10 - 16:40CEI Chiang Rai-STN London Stansted

36h 30m2 stops Bangkok Suvarnabhumi Istanbul

£6,152Turkish Airlines

Sun, 13 Sep - Wed, 16 Sep

17:35 - 13:10STN London Stansted-CEI Chiang Rai

37h 35m2 stops Istanbul Bangkok Suvarnabhumi

13:40 - 16:40CEI Chiang Rai-STN London Stansted

33h 00m2 stops Bangkok Suvarnabhumi Istanbul

£6,155Turkish Airlines

Sun, 13 Sep - Wed, 16 Sep

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Thai Airways flights from London to Chiang Rai

Our best Thai Airways deals on London to Chiang Rai flight tickets

Thai Airways

22 Oct

LHR21:25London Heathrow

14h 55m

1 stop

CEI18:20Chiang Rai

29 Oct

CEI10:15Chiang Rai

16h 20m

1 stop

LHR19:35London Heathrow

£966

Thai Airways

13 Dec

LHR11:50London Heathrow

23h 30m

1 stop

CEI18:20Chiang Rai

2 Feb

CEI14:25Chiang Rai

23h 15m

1 stop

LHR06:40London Heathrow

£1,000

Thai Airways

9 Dec

LHR11:50London Heathrow

14h 50m

1 stop

CEI09:40Chiang Rai

11 Jan

CEI18:55Chiang Rai

31h 40m

1 stop

LHR19:35London Heathrow

£1,286

EVA Air flights from London to Chiang Rai

Our best EVA Air deals on London to Chiang Rai flight tickets

EVA Air

30 Sept

LHR21:35London Heathrow

30h 05m

1 stop

CEI09:40Chiang Rai

14 Oct

CEI13:40Chiang Rai

35h 40m

1 stop

LHR19:20London Heathrow

£893

EVA Air

14 Sept

LHR21:35London Heathrow

30h 05m

1 stop

CEI09:40Chiang Rai

16 Sept

CEI13:40Chiang Rai

35h 40m

1 stop

LHR19:20London Heathrow

£913

EVA Air

14 Sept

LHR21:35London Heathrow

30h 05m

1 stop

CEI09:40Chiang Rai

16 Sept

CEI13:40Chiang Rai

35h 40m

1 stop

LHR19:20London Heathrow

£914

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonChiang Rai

LGW London Gatwick - CEI Chiang Rai

LGWCEI

London Gatwick

Mon 12/10

12:35-19:25

2 stops24h 50m

Chiang Rai

Mon 19/10

11:15-06:35

2 stops25h 20m

£536

LondonChiang Rai

LHR London Heathrow - CEI Chiang Rai

LHRCEI

London Heathrow

Wed 30/9

10:00-18:20

2 stops26h 20m

Chiang Rai

Wed 14/10

13:40-15:20

2 stops31h 40m

£672

LondonChiang Rai

LHR London Heathrow - CEI Chiang Rai

LHRCEI

London Heathrow

Wed 30/9

22:05-18:20

2 stops38h 15m

Chiang Rai

Wed 14/10

13:40-15:20

2 stops31h 40m

£673

LondonChiang Rai

LHR London Heathrow - CEI Chiang Rai

LHRCEI

London Heathrow

Wed 30/9

10:00-18:20

2 stops26h 20m

Chiang Rai

Wed 14/10

10:10-15:20

2 stops35h 10m

£690

LondonChiang Rai

LHR London Heathrow - CEI Chiang Rai

LHRCEI

London Heathrow

Wed 30/9

22:05-18:20

2 stops38h 15m

Chiang Rai

Wed 14/10

13:40-15:20

2 stops31h 40m

£691

LondonChiang Rai

LGW London Gatwick - CEI Chiang Rai

LGWCEI

London Gatwick

Wed 30/9

09:00-13:10

2 stops22h 10m

Chiang Rai

Wed 14/10

18:55-06:40

2 stops41h 45m

£693

LondonChiang Rai

LGW London Gatwick - CEI Chiang Rai

LGWCEI

London Gatwick

Wed 30/9

09:00-13:10

2 stops22h 10m

Chiang Rai

Wed 14/10

18:55-06:40

2 stops41h 45m

£695

LondonChiang Rai

LHR London Heathrow - CEI Chiang Rai

LHRCEI

London Heathrow

Wed 30/9

10:00-18:20

2 stops26h 20m

Chiang Rai

Wed 14/10

13:40-15:20

2 stops31h 40m

£697

Fastest return journey

LondonChiang Rai

LHR London Heathrow - CEI Chiang Rai

LHRCEI

London Heathrow

Thu 22/10

21:25-18:20

1 stop14h 55m

Chiang Rai

Thu 29/10

10:15-19:35

1 stop16h 20m

£966

LondonChiang Rai

LHR London Heathrow - CEI Chiang Rai

LHRCEI

London Heathrow

Mon 14/12

11:50-18:20

1 stop23h 30m

Chiang Rai

Mon 1/2

10:15-19:35

1 stop16h 20m

£1,000

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 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

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 according to our data. Thai Airways is the first choice among our users, with 39% of people opting to fly with this airline when travelling to Chiang Rai. Keep in mind that there are 7 different airlines that fly to Chiang Rai on a routine basis, so you have a few additional options to choose from.

When to book flights from London to Chiang Rai

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

Estimated return price

Cheap London to Chiang Rai (LON to CEI) flight deals and tips

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

Best price found	£250
Fastest flight time	19h 20m
Direct flights	None

The best one-way flight to Chiang Rai from London in the past 72 hours is £250. The best return flight deal from London to Chiang Rai found on momondo in the last 72 hours is £536.

The fastest flight from London to Chiang Rai takes 19h 20m

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

Search flight deals

Frequently asked questions about flying from London to Chiang Rai

How far is London to Chiang Rai by plane?
Chiang Rai is 5557.2 mi away from London. By plane, this route typically takes 19h 20m.
When did momondo last update prices for flights from London to Chiang Rai Airport?
Prices for flights from London to Chiang Rai Airport refresh daily.
How many operators does momondo search for flights from London to Chiang Rai Airport?
There is 1 operator available for flights from London to Chiang Rai Airport as of September 2026.
How old do you have to be to fly from London to Chiang Rai Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from London to Chiang Rai Airport.
What documentation or ID do you need to fly to Chiang Rai Airport?
The required travel and health documents for your Chiang Rai Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Chiang Rai Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular airline from London to Chiang Rai?
momondo data reveals that the most frequently booked airline on the route from London to Chiang Rai is Thai Airways, representing 100% of all bookings.

Best airlines flying from London to Chiang Rai

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

Airline	Rating	Free Cancellation	Price
Thai Airways	PriceFrom £903	Free Cancellation	Rating 7.9 418 reviews		Search Thai Airways flights

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Chiang Rai from London.

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?

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 Rai from London.

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

Yes momondo offers price alerts on flights to Chiang Rai from London. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.