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

Prices for flights from Chiang Rai Airport to London Heathrow Airport are refreshed on a daily basis.

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

What documentation or ID do you need to fly to London Heathrow Airport?

The travel and health documents you'll need for your trip to London Heathrow Airport 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 Heathrow Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

£267 Cheap Flights from Chiang Rai to London Heathrow Airport in 2026/27

Find the cheapest flights from Chiang Rai to London

Return

One-way

Cheap return flights

Enter your travel dates to find the best prices.

18:55 - 06:40CEI Chiang Rai-LHR London Heathrow

18h 45m1 stop Bangkok Suvarnabhumi

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

23h 30m1 stop Bangkok Suvarnabhumi

£909Thai Airways

Sat, 12 Dec - Sat, 19 Dec

18:55 - 06:40CEI Chiang Rai-LHR London Heathrow

18h 45m1 stop Bangkok Suvarnabhumi

22:00 - 19:25LHR London Heathrow-CEI Chiang Rai

38h 25m2 stops Guangzhou Baiyun Bangkok Suvarnabhumi

£943Multiple Airlines

Sun, 6 Dec - Wed, 30 Dec

14:25 - 06:40CEI Chiang Rai-LHR London Heathrow

23h 15m1 stop Bangkok Suvarnabhumi

11:50 - 09:40LHR London Heathrow-CEI Chiang Rai

14h 50m1 stop Bangkok Suvarnabhumi

£946Thai Airways

Wed, 9 Dec - Wed, 16 Dec

20:00 - 14:30CEI Chiang Rai-LHR London Heathrow

25h 30m2 stops Bangkok Suvarnabhumi Abu Dhabi Zayed Intl

13:45 - 09:40LHR London Heathrow-CEI Chiang Rai

36h 55m2 stops Doha Hamad Intl Bangkok Suvarnabhumi

£949Multiple Airlines

Sun, 6 Dec - Wed, 30 Dec

10:15 - 06:35CEI Chiang Rai-LHR London Heathrow

27h 20m2 stops Bangkok Suvarnabhumi Manama Bahrain Intl

21:40 - 13:55LHR London Heathrow-CEI Chiang Rai

33h 15m2 stops Manama Bahrain Intl Bangkok Suvarnabhumi

£957Gulf Air

Mon, 9 Nov - Fri, 13 Nov

10:15 - 06:35CEI Chiang Rai-LHR London Heathrow

27h 20m2 stops Bangkok Suvarnabhumi Manama Bahrain Intl

21:40 - 13:55LHR London Heathrow-CEI Chiang Rai

33h 15m2 stops Manama Bahrain Intl Bangkok Suvarnabhumi

£1,015Gulf Air

Mon, 9 Nov - Fri, 13 Nov

14:25 - 09:50CEI Chiang Rai-LHR London Heathrow

26h 25m2 stops Bangkok Suvarnabhumi Istanbul

11:50 - 09:40LHR London Heathrow-CEI Chiang Rai

14h 50m1 stop Bangkok Suvarnabhumi

£1,018Thai Airways

Wed, 9 Dec - Wed, 16 Dec

14:25 - 19:05CEI Chiang Rai-LHR London Heathrow

35h 40m1 stop Bangkok Suvarnabhumi

21:20 - 13:55LHR London Heathrow-CEI Chiang Rai

33h 35m1 stop Bangkok Suvarnabhumi

£1,049EVA Air

Sun, 6 Dec - Wed, 30 Dec

15:20 - 11:05CEI Chiang Rai-LHR London Heathrow

26h 45m2 stops Bangkok Suvarnabhumi Mumbai Chhatrapati Shivaji Intl

08:40 - 10:45LHR London Heathrow-CEI Chiang Rai

19h 05m2 stops Abu Dhabi Zayed Intl Bangkok Suvarnabhumi

£1,059Multiple Airlines

Wed, 9 Dec - Wed, 16 Dec

10:15 - 06:35CEI Chiang Rai-LHR London Heathrow

27h 20m2 stops Bangkok Suvarnabhumi Manama Bahrain Intl

21:40 - 13:55LHR London Heathrow-CEI Chiang Rai

33h 15m2 stops Manama Bahrain Intl Bangkok Suvarnabhumi

£1,094Gulf Air

Mon, 9 Nov - Fri, 13 Nov

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Gulf Air flights from Chiang Rai to London Heathrow Airport

Our best Gulf Air deals on Chiang Rai to London Heathrow Airport flight tickets

Gulf Air

9 Nov

CEI10:15Chiang Rai

27h 20m

2 stops

LHR06:35London Heathrow

13 Nov

LHR21:40London Heathrow

33h 15m

2 stops

CEI13:55Chiang Rai

£957

Gulf Air

9 Nov

CEI10:15Chiang Rai

27h 20m

2 stops

LHR06:35London Heathrow

13 Nov

LHR21:40London Heathrow

33h 15m

2 stops

CEI13:55Chiang Rai

£1,015

Gulf Air

9 Nov

CEI10:15Chiang Rai

27h 20m

2 stops

LHR06:35London Heathrow

13 Nov

LHR21:40London Heathrow

33h 15m

2 stops

CEI13:55Chiang Rai

£1,094

EVA Air flights from Chiang Rai to London Heathrow Airport

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

EVA Air

6 Dec

CEI14:25Chiang Rai

35h 40m

1 stop

LHR19:05London Heathrow

30 Dec

LHR21:20London Heathrow

33h 35m

1 stop

CEI13:55Chiang Rai

£1,049

EVA Air

9 Nov

CEI14:25Chiang Rai

35h 40m

1 stop

LHR19:05London Heathrow

13 Nov

LHR21:20London Heathrow

33h 35m

1 stop

CEI13:55Chiang Rai

£1,353

EVA Air

9 Nov

CEI14:25Chiang Rai

35h 40m

1 stop

LHR19:05London Heathrow

13 Nov

LHR21:20London Heathrow

33h 35m

1 stop

CEI13:55Chiang Rai

£1,354

momondo Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

Chiang RaiLondon

CEI Chiang Rai - LHR London Heathrow

CEILHR

Chiang Rai

Sat 12/12

18:55-06:40

1 stop18h 45m

London Heathrow

Sat 19/12

11:50-18:20

1 stop23h 30m

£909

Chiang RaiLondon

CEI Chiang Rai - LHR London Heathrow

CEILHR

Chiang Rai

Sun 6/12

18:55-06:40

1 stop18h 45m

London Heathrow

Wed 30/12

22:00-19:25

2 stops38h 25m

£943

Fastest return journey

Chiang RaiLondon

CEI Chiang Rai - LHR London Heathrow

CEILHR

Chiang Rai

Wed 9/12

14:25-06:40

1 stop23h 15m

London Heathrow

Wed 16/12

11:50-09:40

1 stop14h 50m

£946

Chiang RaiLondon

CEI Chiang Rai - LHR London Heathrow

CEILHR

Chiang Rai

Sun 6/12

20:00-14:30

2 stops25h 30m

London Heathrow

Wed 30/12

13:45-09:40

2 stops36h 55m

£949

Chiang RaiLondon

CEI Chiang Rai - LHR London Heathrow

CEILHR

Chiang Rai

Mon 9/11

10:15-06:35

2 stops27h 20m

London Heathrow

Fri 13/11

21:40-13:55

2 stops33h 15m

£957

Chiang RaiLondon

CEI Chiang Rai - LHR London Heathrow

CEILHR

Chiang Rai

Mon 9/11

10:15-06:35

2 stops27h 20m

London Heathrow

Fri 13/11

21:40-13:55

2 stops33h 15m

£1,015

Chiang RaiLondon

CEI Chiang Rai - LHR London Heathrow

CEILHR

Chiang Rai

Wed 9/12

14:25-09:50

2 stops26h 25m

London Heathrow

Wed 16/12

11:50-09:40

1 stop14h 50m

£1,018

Chiang RaiLondon

CEI Chiang Rai - LHR London Heathrow

CEILHR

Chiang Rai

Sun 6/12

14:25-19:05

1 stop35h 40m

London Heathrow

Wed 30/12

21:20-13:55

1 stop33h 35m

£1,049

Chiang RaiLondon

CEI Chiang Rai - LHR London Heathrow

CEILHR

Chiang Rai

Wed 9/12

15:20-11:05

2 stops26h 45m

London Heathrow

Wed 16/12

08:40-10:45

2 stops19h 05m

£1,059

Chiang RaiLondon

CEI Chiang Rai - LHR London Heathrow

CEILHR

Chiang Rai

Mon 9/11

10:15-06:35

2 stops27h 20m

London Heathrow

Fri 13/11

21:40-13:55

2 stops33h 15m

£1,094

Flights are sorted by cheapest return flights first.

Showing 1-10 of 16 resultsSorted by cheapest first

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

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 cheapest airline that flies from Chiang Rai to London Heathrow?

Thai Airways is the most popular carrier operating from Chiang Rai to London Heathrow

When to book flights from Chiang Rai to London Heathrow Airport

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

Estimated return price

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

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

Best price found	£267
Fastest flight time	35h 30m
Direct flights	None

The best one-way flight to London Heathrow Airport from Chiang Rai in the past 72 hours is £267. The best return flight deal from Chiang Rai to London Heathrow Airport found on momondo in the last 72 hours is £909.

The fastest flight from Chiang Rai to London Heathrow Airport takes 35h 30m

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

Search flight deals

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

How far is Chiang Rai to London Heathrow by plane?
The straight-line distance from Chiang Rai to London Heathrow is 5571.3 mi. By plane, this route typically takes 35h 30m.
When did momondo last update prices for flights from Chiang Rai Airport to London Heathrow Airport?
Prices for flights from Chiang Rai Airport to London Heathrow Airport are refreshed on a daily basis.
How old do you have to be to fly from Chiang Rai Airport to London Heathrow 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 Chiang Rai Airport to London Heathrow Airport.
What documentation or ID do you need to fly to London Heathrow Airport?
The travel and health documents you'll need for your trip to London Heathrow Airport 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 Heathrow Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

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Why use momondo?

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

It is quick and easy to find Chiang Rai to London flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to London that suits you.

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

All flight searches from Chiang Rai to London on momondo can be filtered to show those which offer flexible booking policies.

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

momondo helps you find the best flight between Chiang Rai and London by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

If you are simply researching potential flights to London, momondo offers a useful price alert feature which will track prices for flights to London from Chiang Rai and alert you when they change.