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Cheap flights from Chiang Rai to London from £449

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 Rai to London departing on 11/4. 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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Cheap return flights

Enter your travel dates to find the best prices.
Singapore Airlines Logo
19:25 - 19:10
CEI
-
LHR
30h 45m
1 stop
Singapore Airlines Logo
09:10 - 18:40
LHR
-
CEI
26h 30m
1 stop
£1,065Singapore Airlines
Mon, 9 Mar - Wed, 11 Mar
Singapore Airlines Logo
19:25 - 19:10
CEI
-
LHR
30h 45m
1 stop
Singapore Airlines Logo
21:45 - 18:40
LHR
-
CEI
37h 55m
1 stop
£1,068Singapore Airlines
Mon, 9 Mar - Wed, 11 Mar

Singapore Airlines flights from Chiang Rai to London

Our best Singapore Airlines deals on Chiang Rai to London flight tickets
Singapore Airlines
9 Mar
CEI19:25Chiang Rai
30h 45m
1 stop
LHR19:10London Heathrow
11 Mar
LHR09:10London Heathrow
26h 30m
1 stop
CEI18:40Chiang Rai
£1,065
Singapore Airlines
9 Mar
CEI19:25Chiang Rai
30h 45m
1 stop
LHR19:10London Heathrow
11 Mar
LHR21:45London Heathrow
37h 55m
1 stop
CEI18:40Chiang Rai
£1,068

momondo Fare Finder

 
Customise your flight search to find flights from Chiang Rai 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 February 2026.
Use the filters below to find and compare flights from Chiang Rai to London that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Chiang RaiLondon

CEI - LHR

CEILHR

Chiang Rai

Mon 9/3

19:25-19:10

1 stop30h 45m

London Heathrow

Wed 11/3

09:10-18:40

1 stop26h 30m

£1,065

Chiang RaiLondon

CEI - LHR

CEILHR

Chiang Rai

Mon 9/3

19:25-19:10

1 stop30h 45m

London Heathrow

Wed 11/3

21:45-18:40

1 stop37h 55m

£1,068

Chiang RaiLondon

CEI - LHR

CEILHR

Chiang Rai

Sat 11/4

15:30-09:50

3 stops48h 20m

£449

Chiang RaiLondon

CEI - LHR

CEILHR

Chiang Rai

Sat 11/4

16:25-09:35

2 stops47h 10m

£551

Chiang RaiLondon

CEI - LHR

CEILHR

Chiang Rai

Sat 11/4

21:40-19:15

1 stop27h 35m

£1,059

Chiang RaiLondon

CEI - LHR

CEILHR

Chiang Rai

Sat 11/4

19:20-05:55

1 stop40h 35m

£1,207

Flights are sorted by cheapest return flights first.

Sorted by cheapest first

See travel insights to London from

How to get the cheapest flight ticket from Chiang Rai 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

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

Singapore Airlines is the most popular carrier operating from Chiang Rai to London

Which airlines fly to London?

China Eastern, Air China and Etihad Airways are the top three most popular airlines that fly to London from Chiang Rai according to our data. China Eastern is the first choice among our users, with 56% of people opting to fly with this airline when travelling to London. Keep in mind that there are 3 different airlines that fly to London on a routine basis, so you have a few additional options to choose from.

When to book flights from Chiang Rai to London

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

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

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

Fastest flight time

26h 55m

Direct flights

None
The fastest flight from Chiang Rai to London takes 26h 55m
There are no direct flights from Chiang Rai to London. There are no popular flight routes from Chiang Rai to London.
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  • How far is Chiang Rai to London by plane?

    Chiang Rai and London are 5557.2 mi apart from one another. 26h 55m is a normal flight duration for this route.

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

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

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

    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.

  • What documentation or ID do you need to fly to London?

    The required travel and health documents for your London 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 London. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Travelling to a place near London?

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Why use momondo?

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

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 London from Chiang Rai.

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

Yes. momondo enables you to select and highlight flights to London from Chiang Rai with this policy.

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

Once all potential Chiang Rai to London flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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.

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Fly into one of these airports located in London

Airports listed have a maximum distance of 35.6 mi from London
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London Southend Airport
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