Cheap Flights from London (LOND) to Chiang Rai (CEI)

Compare London to Chiang Rai flight deals

Find the cheapest month or even day of the year to fly to Chiang Rai

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Flight deals from London to Chiang Rai

Looking for a cheap last-minute deal or the best return flight from London to Chiang Rai? Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from London to Chiang Rai

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like London to Chiang Rai flights are currently cheapest in February.

London to Chiang Rai: Alternative routes

Compare routes from London to Chiang Rai below. You may find an airport to fly into that's cheaper, faster, or easier than Chiang Rai.

London to Chiang Rai: Flight information

The things to know before you go.
Cheapest flight found£424
Cheapest month to flyJanuary

Finding cheap flights from London to Chiang Rai: Frequently asked questions

The best price we found for a return flight from London to Chiang Rai is £424. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from London to Chiang Rai. But we found flights with one stop from £425.
As of December 2025, there are no flights flying from London to Chiang Rai.
The cheapest month to fly from London to Chiang Rai is usually January.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from London to Chiang Rai Airport on Thursday, 29 January 2026.
No airlines currently offer direct flights between London and Chiang Rai Airport. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Chiang Rai but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Chiang Rai is around 40 days in advance, so don’t leave your flight to the last minute.
The cheapest airline that flies to Chiang Rai is China Eastern .

Flying from London to Chiang Rai International Airport (CEI): What you need to know

  • When organising your flight from London to Chiang Rai International Airport (CEI), you'll have your pick of airports to jet out of. Check out London Heathrow Airport (LHR) and London Gatwick Airport (LGW) for your departure options. Other possibilities include Stansted Airport (STN), London Luton Airport (LTN) and London City Airport (LCY).

  • Chiang Rai is seven hours ahead of London. Chiang Rai International Airport is located in Chiang Rai, which operates on the UTC+7 timezone.

  • Arrive at the airport on time so you don't miss your flight from London to CEI. Be there at least two hours ahead for international flights and an hour early for domestic departures to avoid sprinting to your gate.

  • With more people on the move during peak seasons, it's smart to get to your terminal even earlier. Two hours for domestic flights and up to four for international trips will help you deal with longer queues.

Airports in London

London Heathrow Airport (LHR)

  • You might be able to make your cheap flight from London to CEI even cheaper with a stopover. Just uncheck 'Direct flights only' during your search to explore stopover cities along the route. Suvarnabhumi Airport (BKK) is an option when departing from London Heathrow Airport (LHR).

  • LHR is around 31 kms (19 miles) from central London. If you're ride-sharing, catching a cab or driving from the centre, it'll take 55 minutes or so to get there, depending on traffic conditions. If you're using public transport, expect the trip time to be around 1 hour.

  • Catching an early flight from London to Chiang Rai International Airport? Avoid the mad dash to the terminal (and get some extra shut-eye) by staying at one of these stays near London Heathrow Airport:

  • Of the flights that depart from London Heathrow Airport, 68.18% land on time at their destination.

London Gatwick Airport (LGW)

  • Squeeze in an extra adventure with a stopover on your flight from London to Chiang Rai International Airport. Suvarnabhumi Airport (BKK) is a great option between London Gatwick Airport and CEI.

  • On public transport, you can travel from central London to LGW in around 30 minutes. The airport is roughly 80 kms (50 miles) away, and getting there by car takes approximately 1 hour 20 minutes.

  • Want to enjoy an extra night away before your London to CEI flight? Check in to a hotel near London Gatwick Airport before your break officially starts. These stays have a room with your name on it:

  • When it comes to keeping flights on track, London Gatwick Airport has an on-time arrival rate of 69.26%.

Stansted Airport (STN)

  • From the centre of London, STN is around 64 kms (40 miles) away. It'll take you roughly 1 hour to reach the airport by car and 1 hour 25 minutes or so on public transport.

  • Sleep a little longer, move a little slower, and still make your London to Chiang Rai International Airport flight with plenty of time to spare. These accommodation options near Stansted Airport make getting to the terminal a breeze if you're jetting off early:

  • The on-time performance rating of STN is 64.73%. To put it simply, that's how often flights that depart this airport arrive at their final stop as planned.

About Chiang Rai International Airport (CEI)

How to find the cheapest flights from London to Chiang Rai International Airport (CEI)

  • At the moment, £249 is the lowest price we've found for a one-way ticket from London to Chiang Rai International Airport. The cheapest price for a return flight is £424. Remember fares can change due to demand at the time of booking.

  • Booking ahead of time is often the key to finding a cheap flight from London to CEI. Airlines adjust prices based on demand, so the closer you get to departure, the more you'll likely spend.

  • Affordable London to Chiang Rai International Airport tickets are easier to find when your travel dates are flexible. Use the 'Whole month' search function to compare fares throughout the month and then fly out on the cheapest day.

  • Stay on top of deals for plane tickets from London to CEI by creating a Price Alert. We'll send you an email or push notification on the app when prices go down.

  • Hunt for savings on a flight from London to Chiang Rai International Airport with the help of the filters. Choose your preferred departure and arrival times, airlines and number of stops. You can also sort your results by 'Cheapest,' 'Best' or 'Fastest.'

The best time to fly from London to Chiang Rai International Airport (CEI)

  • August is when most people book flights from London to Chiang Rai International Airport (CEI). Plan your visit to Chiang Rai in February for a quieter experience.

  • Lock in a London to CEI plane ticket departing in April if you're eager to visit the city during its warmest month. You can expect temperatures in Chiang Rai to range from 22ºC (72ºF) to 41ºC (106ºF).

  • Search for cheap tickets from London to Chiang Rai International Airport in January if you want to travel in cooler conditions. Temperatures are at their lowest then, ranging between 12ºC (54ºF) and 30ºC (86ºF).

More about Chiang Rai

  • When it comes to looking for somewhere to rest your head, you'll find the most popular stays in Chiang Rai right here. Explore these hotels once you've booked your flight from London to Chiang Rai International Airport:

  • There are so many things to explore in this city, it can be hard to know where to start. Wat Rong Khun, Wat Phra Kaew and Wat Huai Pla Kung are top attractions which should be on any well-planned Chiang Rai itinerary.

Explore more of Thailand

  • You've seen Chiang Rai, now it's time to discover more of Thailand. Journey about 161 kms (100 miles) south-west to Chiang Mai to check off its leading attractions. From Songkran Festival Chiang Mai to Yi Peng and Loy Krathong (Lantern Festival) and Doi Suthep, you'll have a full itinerary ahead.

  • Lampang is another sought-after destination in Thailand and is around 193 kms (120 miles) south of Chiang Rai. No trip is complete without dropping by Wat Chiang Rai, Wat Phra Kaeo Don Tao and Wat Phra That Doi moung Kham.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.