LON - CEI

£251 Find Cheap Flights from London to Chiang Rai – Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from London to Chiang Rai departing on 15/9. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest return fare
£496
Multiple Airlines
Wed 26/8Wed 2/9
LGW - CEI • 2 stops
Cheapest one-way flight
£251
Multiple Airlines
Tue 15/9
STN - CEI • 3 stops
Top airlines
Thai Airways
Cheapest • from £869 (return)
Thai Airways
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Direct flights
Not available
There are currently no direct flights between London and Chiang Rai. You’ll need at least 1 connection.
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We hope you love your trip to Chiang Rai!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from London to Chiang Rai (LON-CEI)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from London to Chiang Rai that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from London to Chiang Rai

Wed, 26 Aug - Wed, 2 Sep
Multiple Airlines Logo
12:35 - 19:25
LGW
-
CEI
24h 50m
2 stops
Multiple Airlines Logo
20:00 - 18:05
CEI
-
LGW
52h 05m
2 stops
£496Multiple Airlines
Sun, 13 Sep - Sun, 20 Sep
Multiple Airlines Logo
07:25 - 19:25
STN
-
CEI
30h 00m
3 stops
Multiple Airlines Logo
20:00 - 23:25
CEI
-
STN
33h 25m
3 stops
£555Multiple Airlines
Thu, 10 Sep - Thu, 17 Sep
Multiple Airlines Logo
10:20 - 18:20
LGW
-
CEI
26h 00m
2 stops
Multiple Airlines Logo
13:40 - 14:45
CEI
-
LGW
31h 05m
2 stops
£565Multiple Airlines
Sun, 13 Sep - Sun, 20 Sep
Multiple Airlines Logo
10:00 - 19:25
LHR
-
CEI
27h 25m
2 stops
Multiple Airlines Logo
20:00 - 06:55
CEI
-
LHR
40h 55m
2 stops
£587Multiple Airlines
Fri, 11 Sep - Fri, 18 Sep
Multiple Airlines Logo
10:10 - 19:25
LGW
-
CEI
27h 15m
2 stops
Multiple Airlines Logo
20:00 - 18:35
CEI
-
LGW
28h 35m
2 stops
£606Multiple Airlines
Sun, 13 Sep - Sun, 20 Sep
Multiple Airlines Logo
11:35 - 19:25
LGW
-
CEI
25h 50m
2 stops
Multiple Airlines Logo
20:00 - 15:00
CEI
-
LGW
49h 00m
2 stops
£606Multiple Airlines
Tue, 15 Sep - Tue, 22 Sep
Multiple Airlines Logo
08:15 - 19:25
STN
-
CEI
29h 10m
3 stops
Multiple Airlines Logo
15:25 - 09:50
CEI
-
STN
24h 25m
3 stops
£615Multiple Airlines
Thu, 10 Sep - Thu, 17 Sep
Multiple Airlines Logo
07:55 - 19:25
STN
-
CEI
29h 30m
3 stops
Multiple Airlines Logo
20:00 - 23:55
CEI
-
STN
33h 55m
3 stops
£619Multiple Airlines
Fri, 11 Sep - Fri, 18 Sep
Thai Airways Logo
12:30 - 13:10
LHR
-
CEI
18h 40m
1 stop
Thai Airways Logo
10:10 - 19:15
CEI
-
LHR
15h 05m
1 stop
£869Thai Airways
Thu, 10 Sep - Thu, 17 Sep
Thai Airways Logo
12:30 - 18:20
LHR
-
CEI
23h 50m
1 stop
Thai Airways Logo
18:55 - 07:15
CEI
-
LHR
18h 20m
1 stop
£883Thai Airways
Booking Insights

KAYAK’s insights & trends for London to Chiang Rai flights

Get data-powered insights and trends into flights from London to Chiang Rai to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from London to Chiang Rai?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from London to Chiang Rai, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from London to Chiang Rai is May, where tickets cost £0 (return) on average. On the other hand, the most expensive months are December and July, where the average cost of round-trip tickets is £1,335 and £1,307 respectively.

Find deals

When to book flights from London to Chiang Rai

Are your dates flexible? Find out the best times to travel from London to Chiang Rai based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from London to Chiang Rai

  • What is the cheapest flight from London to Chiang Rai?

    In the last 5 days, the lowest price for a flight from London to Chiang Rai was £251 for a one-way ticket and £496 for a return.

  • Which airports will I be using when flying from London to Chiang Rai?

    When flying out of London you will be using one of these airports: London Gatwick or London Heathrow. You will be landing at Chiang Rai.

  • Which aircraft models fly most regularly from London to Chiang Rai?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from London to Chiang Rai?

    Star Alliance is the only airline alliance operating flights between London and Chiang Rai.

  • How does KAYAK find such low prices on flights from London to Chiang Rai?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from London to Chiang Rai.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from London to Chiang Rai?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Chiang Rai from London is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from London to Chiang Rai?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to Chiang Rai with an airline and back to London with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from London to Chiang Rai?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Chiang Rai from London up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • Which airlines provide the cheapest flights from London to Chiang Rai?

    In the past 5 days, the cheapest return tickets from London to Chiang Rai were found on Thai Airways (£869) and Singapore Airlines (£1,184).

Reviews of the top airline flying from London to Chiang Rai

 
See real verified KAYAK customer reviews for airlines flying from London to Chiang Rai. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from London to Chiang Rai? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.9
Thai AirwaysOverall score based on 412 reviews
6.9Entertainment
7.7Comfort
8.4Crew
7.5Food
8.0Boarding
Airline reviews

Excellent service in business class. Well worth the slightly higher fare as it includes lounge access, additional luggage weight and a full hot meal on board.

10.0 ExcellentRamon, Jul 2026
BKK - KKC
Read more Thai Airways reviews

Excellent service in business class. Well worth the slightly higher fare as it includes lounge access, additional luggage weight and a full hot meal on board.

We still get drinks and a snack. Love the gift bags too.

Excellent airline. The plane was clean and the staff were very attentive

I'm not interested in improving the airline. Therefore, I won't explain this in more detail. Next time I'll try a different one.

The flight (boarding) was delayed by 40-50 minutes and there was very crowed. They need to improve on the timeliness & boarding process. (They asked passenger to board in groups, but the 2nd group was standing there waiting for 20 minutes!). However, services from the crew was very good, also the food was good as well. I also found the legroom was quite comfortable.

Except that our flight was cancelled, by mail, and later moved to 12 hours prior, then the experience was good. In Bangkok we were offered a hotel, it was fine, but would have been nice to know in advance😉

Although booked meal of fruit only The crew had not received this special meal The same happened on my flight Bangkok / CAN The films are so old that best is to use own computer to watch downloads . Serve nuts but they do not warm up . Service is attentive , WC clean

The boarding efficiency was good. A couple of the flight attendants did not seem in the best of moods. Overall it was a good experience.

Check in was a disaster. 90 minutes and only 2 economy check in desks open. Had to rush to catch the flight.

I couldnt go on this flight and lost all my money over 1,000 UK Pounds as my visa to Myanmar was not accepted :(

Everything you need to know for your flight from London to Chiang Rai

Information on your arrival and departure airports

Chiang Rai (CEI)