Cheap flight tickets from London to Chiang Mai

Compare London to Chiang Mai flight deals

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

Book the best Chiang Mai fare with no extra fees

Flight deals from London to Chiang Mai

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

Find the cheapest month to fly from London to Chiang Mai

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

London to Chiang Mai: Alternative routes

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

London to Chiang Mai: Flight information

The things to know before you go.
Cheapest flight foundRM1,794
Cheapest month to flyJune

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

The best price we found for a return flight from London to Chiang Mai is RM1,794. 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 Mai. But we found flights with one stop from RM1,794.
As of February 2026, there are no flights flying from London to Chiang Mai.
The cheapest month to fly from London to Chiang Mai is usually June.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from London to Chiang Mai Airport on Wednesday, 3 June 2026.
No airlines currently offer direct flights between London and Chiang Mai 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 Mai 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 Mai is around 40 days in advance, so don’t leave your flight to the last minute.
The cheapest airline that flies to Chiang Mai is Air China .

Flying from London to Chiang Mai International Airport (CNX): What you need to know

  • Take your pick of multiple airports when planning your flight from London to Chiang Mai International Airport (CNX). Check out your options for flying out of London Heathrow Airport (LHR), London Gatwick Airport (LGW) or Stansted Airport (STN). London Luton Airport (LTN) and London City Airport (LCY) also service London.

  • Chiang Mai International Airport is located in Chiang Mai. The city is in the UTC+7 timezone and is seven hours ahead of London.

  • To ensure you get on your flight from London to CNX, leave plenty of time for things like baggage drop and finding your gate. Arriving two hours ahead of international departures and one hour before domestic flights is the standard rule.

  • Delays at security and check-in are likely if you're travelling during high season, so allow some extra breathing room. The recommendation for peak times? Get there up to four hours early for international flights and two hours for domestic departures.

Airports in London

London Heathrow Airport (LHR)

  • Stopovers are the ideal opportunity to take a break from travelling and maybe even explore a different city. When searching for cheap flights from London to CNX departing from London Heathrow Airport (LHR), uncheck the 'Direct flights only' box to find all potential stops. Some popular options include:

    • Shanghai Pudong International Airport (PVG)

    • Suvarnabhumi Airport (BKK)

    • Hong Kong International Airport (HKG)

  • Travelling from central London to LHR takes about 1 hour by public transport. If you ride-share, drive or grab a cab, you'll cover the 31 kilometres in 55 minutes or so, depending on traffic conditions.

  • Want a leisurely start to your journey? Stay near London Heathrow Airport. Whether you've booked an early flight from London to Chiang Mai International Airport or prefer not to feel hurried, these hotels are the ideal choice:

  • Of all flights leaving London Heathrow Airport, 68.18% land on schedule at their destination.

London Gatwick Airport (LGW)

  • Tick a new place off your list or just take a moment to recharge with a stopover. If you'd like to split up your flight from London to Chiang Mai International Airport, check out these options when heading out from London Gatwick Airport:

    • Guangzhou Baiyun International Airport (CAN)

    • Shanghai Pudong International Airport (PVG)

    • Suvarnabhumi Airport (BKK)

  • You can reach LGW from central London in approximately 1 hour 20 minutes by car, depending on traffic. The journey by public transport will take roughly 30 minutes to travel the 80 kilometres or so.

  • Get a head start on your holiday with an additional night away from home. Before your London to CNX flight, kick back in one of these hotels close to London Gatwick Airport:

  • As far as flight punctuality goes, London Gatwick Airport has an on-time arrival performance of 69.26%.

Stansted Airport (STN)

  • STN is roughly 64 kilometres from central London. Driving from the city centre to the airport takes about 1 hour. If you're considering public transport, expect a journey time of around 1 hour 25 minutes.

  • Take the 'what ifs' out of departure day — stay close to Stansted Airport and know you'll be at your gate with time to spare. Settle in at one of these hotels the day before if you have an early London to Chiang Mai International Airport flight:

  • The on-time performance rate of STN is 64.73%. In simpler terms, that's how often flights that depart this airport arrive as planned.

About Chiang Mai International Airport (CNX)

Getting from Chiang Mai International Airport (CNX) to central Chiang Mai

  • The centre of Chiang Mai is around 3 kilometres from Chiang Mai International Airport. Travel times by cab or car hire will vary based on traffic conditions, so do some research before you go.

  • Travelling on public transport will take you roughly 25 minutes.

How to find the cheapest flights from London to Chiang Mai International Airport (CNX)

  • The lowest price we've found for a one-way ticket from London to Chiang Mai International Airport is RM1,074. For a return flight on this route, the best price is RM1,794. Depending on how early you book and the availability, these fares could change.

  • Booking ahead of time is often the key to scoring a cheap flight from London to CNX. Flight prices rise as demand increases, so the closer your departure date, the more you'll likely spend.

  • The 'Whole month' tool shows you the cheapest London to Chiang Mai International Airport tickets across the entire month. It's a great way to snap up a bargain if your travel dates aren't set in stone.

  • You don't need to search every day to find out if fares have dropped when you create a Price Alert. We'll let you know as soon as there's a better deal on plane tickets from London to CNX.

  • Tailor your travel plans using filters. Choose your ideal departure and arrival times, airlines and total journey duration. You can also sort the results by 'Cheapest,' 'Fastest' or 'Best' flights from London to Chiang Mai International Airport.

The best time to fly from London to Chiang Mai International Airport (CNX)

  • February is the quietest month for flights from London to Chiang Mai International Airport (CNX), while August is the busiest. Figure out the best time to go to Chiang Mai based on whether you like a laid-back vibe or a lively atmosphere.

  • Before locking in your London to CNX plane ticket, consider the kind of weather you prefer. April is the warmest month in Chiang Mai, with temperatures ranging from 22ºC (72ºF) to 42ºC (108ºF).

  • January has temperatures of between 12ºC (54ºF) and 31ºC (88ºF). Search for cheap tickets from London to Chiang Mai International Airport around that time if you want to travel in cooler conditions.

More about Chiang Mai

Explore more of Thailand

  • Phitsanulok is just one of the many places in Thailand waiting to be discovered once you've taken in the sights of Chiang Mai. Around 257 kilometres away to the south-east, check out popular attractions including Wat Phra Si Rattana Mahathat, Phra Si Ratana Temple (Wat Yai) and Wat Ratcha Burada Temple.

  • Chiang Rai is another favourite destination in Thailand and is around 153 kilometres north-east of Chiang Mai. No trip is complete without visiting Wat Rong Khun, Wat Phra Kaew and Wat Huai Pla Kung.

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