November is by far the best month, wherein you can get cheapest flights for London to Chiang Mai. Meanwhile, February is perceived as the expensive month due to the varying factors. That’s why it’s highly advised to make advanced online flight booking to save huge amounts of money.
November- During this month the footfall is less so, the flight is gradually inexpensive.
November - is the cheapest month to book round trip flights.
Disclaimer - All the above-mentioned fares were found within last 48 hrs. The displayed fares are based on historical data and are subject to change. The fares cannot be guaranteed at the time of booking.

LHR
20:25
London
London Heathrow Airport
Tue , 28 Oct 2025

CNX
21:50
Chiang Mai
Chiang Mai International Airport
Wed, 29 Oct 2025

LHR
16:50
London
London Heathrow Airport
Tue , 28 Oct 2025

CNX
18:50
Chiang Mai
Chiang Mai International Airport
Wed, 29 Oct 2025

LHR
17:50
London
London Heathrow Airport
Tue , 28 Oct 2025

CNX
18:50
Chiang Mai
Chiang Mai International Airport
Wed, 29 Oct 2025

LHR
21:25
London
London Heathrow Airport
Tue , 28 Oct 2025

CNX
13:50
Chiang Mai
Chiang Mai International Airport
Thu, 30 Oct 2025

LHR
09:30
London
London Heathrow Airport
Tue , 28 Oct 2025

CNX
09:25
Chiang Mai
Chiang Mai International Airport
Wed, 29 Oct 2025

LHR
21:20
London
London Heathrow Airport
Tue , 28 Oct 2025

CNX
19:00
Chiang Mai
Chiang Mai International Airport
Wed, 29 Oct 2025

LHR
10:20
London
London Heathrow Airport
Tue , 28 Oct 2025

CNX
19:00
Chiang Mai
Chiang Mai International Airport
Wed, 29 Oct 2025

LHR
09:05
London
London Heathrow Airport
Tue , 28 Oct 2025

CNX
20:25
Chiang Mai
Chiang Mai International Airport
Wed, 29 Oct 2025

LHR
18:50
London
London Heathrow Airport
Tue , 28 Oct 2025

CNX
23:05
Chiang Mai
Chiang Mai International Airport
Wed, 29 Oct 2025

LHR
13:50
London
London Heathrow Airport
Tue , 28 Oct 2025

CNX
13:45
Chiang Mai
Chiang Mai International Airport
Wed, 29 Oct 2025

LHR
07:30
London
London Heathrow Airport
Tue , 28 Oct 2025

CNX
19:00
Chiang Mai
Chiang Mai International Airport
Wed, 29 Oct 2025










Flying from London to Chiang Mai has never been easier. Whether you’re planning a short business trip, a weekend getaway, or reconnecting with family and friends, Easemytrip brings you the best deals, seamless booking, and flexible options for this popular flight route. Our platform is built to help travellers like you compare flight prices, explore direct and connecting options, and find the perfect departure time — all within a few clicks.
The air route between London to Chiang Mai is one of the most frequently travelled, offering reliable services from top airlines and excellent connectivity between London Heathrow Airport (LHR) and Chiang Mai International Airport (CNX). You can expect a flight distance of approximately 9015 km, and most direct services cover it in around 04:55.
Let’s take a closer look at everything you need to know before booking your flight from London to Chiang Mai.
| Flight Details | Information |
|---|---|
| Route Distance | 9015 km |
| Average Flight Time | 04:55 hrs |
| Departure Airport | London Heathrow Airport (LHR) |
| Arrival Airport | Chiang Mai International Airport (CNX) |
| Cabin Classes Available | Economy Class, Premium Economy, Business Class, First Class |
| Direct Flights | NO |
| Common Airlines | Air China, Cathay Pacific airways, Malaysia Airlines, Lufthansa |
The route is serviced regularly by both full-service and budget airlines, catering to all types of travellers — from those looking for no-frills budget options to those preferring business and first-class comfort. If you're flying for business, early morning weekday flights are a great choice, while leisure travellers often opt for weekend and evening departures.