Cheap Flights from Chiang Mai to London Heathrow

Compare Chiang Mai to London Heathrow flight deals

Find the cheapest month or even day of the year to fly to London Heathrow

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Flight deals from Chiang Mai to London Heathrow

Looking for a cheap last-minute deal or the best return flight from Chiang Mai Airport to London Heathrow Airport? If you want to travel next month, return fares start from R 13,396. Find the lowest prices on one-way and return tickets right here.

London.R 4,534 per passenger.Departing Tue, 10 Nov.One-way flight with Thai AirAsia.Outbound indirect flight with Thai AirAsia, departs from Chiang Mai on Tue, 10 Nov, arriving in London Heathrow.Price includes taxes and charges.From R 4,534, select.

London.R 4,647 per passenger.Departing Wed, 28 Oct.One-way flight with Thai AirAsia.Outbound indirect flight with Thai AirAsia, departs from Chiang Mai on Wed, 28 Oct, arriving in London Heathrow.Price includes taxes and charges.From R 4,647, select.

London.R 5,415 per passenger.Departing Wed, 8 Jul.One-way flight with Thai LionAir.Outbound indirect flight with Thai LionAir, departs from Chiang Mai on Wed, 8 Jul, arriving in London Heathrow.Price includes taxes and charges.From R 5,415, select.

London.R 5,630 per passenger.Departing Tue, 2 Mar.One-way flight with Thai VietJet Air.Outbound indirect flight with Thai VietJet Air, departs from Chiang Mai on Tue, 2 Mar, arriving in London Heathrow.Price includes taxes and charges.From R 5,630, select.

London.R 5,698 per passenger.Departing Tue, 1 Dec.One-way flight with Thai AirAsia.Outbound indirect flight with Thai AirAsia, departs from Chiang Mai on Tue, 1 Dec, arriving in London Heathrow.Price includes taxes and charges.From R 5,698, select.

London.R 5,717 per passenger.Departing Tue, 26 Jan.One-way flight with Thai VietJet Air.Outbound indirect flight with Thai VietJet Air, departs from Chiang Mai on Tue, 26 Jan, arriving in London Heathrow.Price includes taxes and charges.From R 5,717, select.

London.R 6,058 per passenger.Departing Sat, 12 Sep.One-way flight with Etihad Airways.Outbound indirect flight with Etihad Airways, departs from Chiang Mai on Sat, 12 Sep, arriving in London Heathrow.Price includes taxes and charges.From R 6,058, select.

London.R 6,137 per passenger.Departing Thu, 22 Apr.One-way flight with Malaysia Airlines.Outbound indirect flight with Malaysia Airlines, departs from Chiang Mai on Thu, 22 Apr, arriving in London Heathrow.Price includes taxes and charges.From R 6,137, select.

London.R 6,402 per passenger.Departing Mon, 17 May.One-way flight with Malaysia Airlines.Outbound indirect flight with Malaysia Airlines, departs from Chiang Mai on Mon, 17 May, arriving in London Heathrow.Price includes taxes and charges.From R 6,402, select.

London.R 6,415 per passenger.Departing Mon, 1 Feb.One-way flight with Malaysia Airlines.Outbound indirect flight with Malaysia Airlines, departs from Chiang Mai on Mon, 1 Feb, arriving in London Heathrow.Price includes taxes and charges.From R 6,415, select.

London.R 6,821 per passenger.Departing Tue, 4 Aug.One-way flight with Thai AirAsia.Outbound indirect flight with Thai AirAsia, departs from Chiang Mai on Tue, 4 Aug, arriving in London Heathrow.Price includes taxes and charges.From R 6,821, select.

London.R 8,501 per passenger.Departing Tue, 1 Jun.One-way flight with Malaysia Airlines.Outbound indirect flight with Malaysia Airlines, departs from Chiang Mai on Tue, 1 Jun, arriving in London Heathrow.Price includes taxes and charges.From R 8,501, select.

Find the cheapest month to fly from Chiang Mai to London Heathrow

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

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Chiang Mai to London Heathrow: Alternative routes

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

Chiang Mai to London: Flight information

The things to know before you go.

Cheapest flight found	R 4,534
Cheapest month to fly	November

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

How much are return flights from Chiang Mai to London Heathrow?

The best price we found for a return flight from Chiang Mai to London Heathrow is R 13,149. 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.

Which airlines fly direct from Chiang Mai to London Heathrow?

Currently, there are no airlines that fly direct from Chiang Mai to London Heathrow. But we found flights with one or more stops from R 13,149.

How many flights are there a week from Chiang Mai to London Heathrow?

As of July 2026, there are no flights flying from Chiang Mai to London Heathrow.

When is the cheapest time to fly from Chiang Mai to London Heathrow?

The cheapest month to fly from Chiang Mai to London Heathrow is usually July.

Which upcoming date is cheapest to fly from Chiang Mai Airport to London Heathrow Airport on?

After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Chiang Mai Airport to London Heathrow Airport on Monday, 27 July 2026.

Can I get a direct flight from Chiang Mai Airport to London Heathrow Airport?

No airlines currently offer direct flights between Chiang Mai Airport and London Heathrow Airport. Most routes have one or more stops.

How can I find the best flight deal to London Heathrow?

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 London Heathrow 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.

When is the best time to book flights to London?

We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to London is around 40 days in advance, so don’t leave your flight to the last minute.

Which is the cheapest airline to fly from Chiang Mai Airport to London Heathrow with?

Currently, Thai VietJet Air offers the cheapest flight tickets to London Heathrow.

Flying from Chiang Mai Airport (CNX) to London Heathrow Airport (LHR): what you need to know

London is seven hours behind Chiang Mai and observes the UTC+0 timezone.
To ensure you catch your CNX to LHR flight, leave enough time for things like check-in and baggage drop. Arriving two hours before international departures and one hour before domestic flights is the general travel rule.
During popular months like January, it's best to get to the airport earlier. Arrive two hours before domestic departures and four hours ahead for international flights when you fly during peak periods in general.
If you want to include a stop along the way, simply deselect 'Direct flights only' when searching for your ticket from Chiang Mai Airport to London Heathrow Airport. These are the most popular stopovers between CNX and LHR:
- Kuala Lumpur International Airport
- Bangkok Suvarnabhumi Airport
- Hong Kong Intl Airport

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

The lowest price we've seen for a one-way Chiang Mai Airport to London Heathrow Airport flight is R 4,534. A round-trip plane ticket right now is R 13,149. Depending on the availability and when you book, these fares may change.
It's a good idea to book as early as possible if you're looking for cheap tickets from CNX to LHR. That's because flight prices are based on demand, which tends to increase closer to the date of departure.
If you're willing to be flexible with your travel dates, try using the 'Whole month' search function. It'll show you the lowest price in every month when searching for a flight from Chiang Mai Airport to London Heathrow Airport.
You don't need to check back in every day to find out if fares have gone down when you set up a Price Alert. We'll update you as soon as there's a better deal on cheap flights from CNX to LHR.
Select your ideal arrival and departure times, number of stops and airlines with the filters. Or sort your results by 'Cheapest' to see the best deals on flights from Chiang Mai Airport to London Heathrow Airport.

Handy information about Chiang Mai Airport (CNX)

Of all flights departing from Chiang Mai Airport, 73% touch down on time at their destination.
Chiang Mai Airport is around 3 kilometres from central Chiang Mai. If you're catching a taxi, ride-sharing or driving from the centre, it'll take you 15 minutes or so to arrive, depending on the traffic.
Planning to take public transport? Expect a journey time of around 25 minutes.
Looking for a handy hotel near CNX? If you're catching an early flight from Chiang Mai Airport to London Heathrow Airport, these stays will have you sleeping moments from your check-in counter:

Arriving at London Heathrow Airport (LHR)

If you're arriving on a late Chiang Mai Airport to London Heathrow Airport flight, nothing beats the convenience of staying near the terminal. Grab your suitcases from the carousel and then be showered and relaxing not long after at one of these options near LHR:
Get your adventure underway by picking up a London Heathrow Airport rental car. Grab your wheels from Surprice, U-Save or Green Motion to explore London and beyond.
For the lowest price, reserve your ride from London Heathrow Airport about one week before you travel.

Getting from London Heathrow Airport (LHR) to central London

London Heathrow Airport is approximately 24 kilometres from central London. The drive time takes about 45 minutes.
It'll take around 25 minutes to get there using public transport.

When to fly to London Heathrow Airport (LHR)

The quietest month for a flight from Chiang Mai Airport to London Heathrow Airport is March, while July is the most popular. Pick the ideal time to go to London based on whether you prefer a more relaxed vibe or a faster pace.
The warmest month in London is July, with the temperature ranging between 11ºC (52ºF) and 26ºC (79ºF). Lock in your flights from Chiang Mai Airport to London Heathrow Airport in this month if this is the type of weather you like.
For cooler conditions, search for a cheap ticket from CNX to LHR in January. Temperatures average between 0ºC (32ºF) and 9ºC (48ºF) then.

Explore more of the United Kingdom

London has plenty to offer, but there are so many other corners of the United Kingdom waiting to be discovered. About 257 kilometres north-west of London, a visit to Manchester will keep your itinerary packed. Start with leading attractions like Manchester United Museum & Stadium Tour, The Homes of Football and Museum of Science and Industry.
Birmingham is another standout destination in the United Kingdom and is around 161 kilometres north-west of London. No journey is complete without visiting Birmingham Museum & Art Gallery, Birmingham Hippodrome Theatre and Bournville Experience.

Plan the rest of your trip from Chiang Mai to London

Prices shown on this page are estimated lowest prices only. Found in the last 12 days.