฿16,865 Cheap Flights from London (LHR) to Chiang Mai (CNX)

View ฿16,865 flight on Sun, 14 Sep 2025Opens in a new window

Popular airlines from Heathrow Airport (LHR) to Chiang Mai Intl. Airport (CNX)

  • Plan, book, fly with confidence

  • trending down icon

    Be in the know

    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon

    Book smarter

    Save up to 40% on select hotels after you book a flight*
  • payments icon

    Earn twice

    Earn your airline miles on top of our rewards
    Sign in

Cheap Flights from London (LHR) to Chiang Mai (CNX)

Prices were available within the past 7 days and start at ฿16,865 for one-way flights and ฿23,520 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Air China
Sat, 15 Nov - Mon, 15 Dec
LHR
London
CNX
Chiang Mai
฿23,520 Return, found 2 days ago
฿23,520
Return
found 2 days ago
Select Air China flight, departing Sat, 15 Nov from London to Chiang Mai, returning Mon, 15 Dec, priced at ฿23,520 found 2 days ago
Air China
Mon, 27 Oct - Tue, 11 Nov
LHR
London
CNX
Chiang Mai
฿23,525 Return, found 4 days ago
฿23,525
Return
found 4 days ago
Select Air China flight, departing Mon, 27 Oct from London to Chiang Mai, returning Tue, 11 Nov, priced at ฿23,525 found 4 days ago
China Eastern Airlines
Mon, 22 Sep - Wed, 8 Oct
LHR
London
CNX
Chiang Mai
฿23,555 Return, found 4 days ago
฿23,555
Return
found 4 days ago
Select China Eastern Airlines flight, departing Mon, 22 Sep from London to Chiang Mai, returning Wed, 8 Oct, priced at ฿23,555 found 4 days ago
China Southern Airlines
Tue, 23 Sep - Mon, 13 Oct
LHR
London
CNX
Chiang Mai
฿24,610 Return, found 4 days ago
฿24,610
Return
found 4 days ago
Select China Southern Airlines flight, departing Tue, 23 Sep from London to Chiang Mai, returning Mon, 13 Oct, priced at ฿24,610 found 4 days ago
Etihad Airways
Sun, 16 Nov - Mon, 24 Nov
LHR
London
CNX
Chiang Mai
฿27,030 Return, just found
฿27,030
Return
just found
Select Etihad Airways flight, departing Sun, 16 Nov from London to Chiang Mai, returning Mon, 24 Nov, priced at ฿27,030 just found
Austrian Airlines
Mon, 1 Sep - Tue, 16 Sep
LHR
London
CNX
Chiang Mai
฿27,860 Return, found 4 days ago
฿27,860
Return
found 4 days ago
Select Austrian Airlines flight, departing Mon, 1 Sep from London to Chiang Mai, returning Tue, 16 Sep, priced at ฿27,860 found 4 days ago
Gulf Air
Mon, 22 Sep - Mon, 29 Sep
LHR
London
CNX
Chiang Mai
฿31,985 Return, found 5 days ago
฿31,985
Return
found 5 days ago
Select Gulf Air flight, departing Mon, 22 Sep from London to Chiang Mai, returning Mon, 29 Sep, priced at ฿31,985 found 5 days ago
Cathay Pacific
Sun, 16 Nov - Mon, 24 Nov
LHR
London
CNX
Chiang Mai
฿32,510 Return, just found
฿32,510
Return
just found
Select Cathay Pacific flight, departing Sun, 16 Nov from London to Chiang Mai, returning Mon, 24 Nov, priced at ฿32,510 just found
Lufthansa
Thu, 11 Sep - Wed, 24 Sep
LHR
London
CNX
Chiang Mai
฿33,265 Return, found 4 days ago
฿33,265
Return
found 4 days ago
Select Lufthansa flight, departing Thu, 11 Sep from London to Chiang Mai, returning Wed, 24 Sep, priced at ฿33,265 found 4 days ago
Thai Airways International
Sun, 16 Nov - Mon, 24 Nov
LHR
London
CNX
Chiang Mai
฿34,410 Return, just found
฿34,410
Return
just found
Select Thai Airways International flight, departing Sun, 16 Nov from London to Chiang Mai, returning Mon, 24 Nov, priced at ฿34,410 just found
Flight from London to Chiang Mai route information
Origin airport
Heathrow
Destination airport
Chiang Mai Intl.
Airlines serving
Asiana Airlines, Austrian Airlines, Cathay Pacific, China Airlines, China Southern Airlines, EVA Airways, Etihad Airways, Finnair, Gulf Air, Korean Air, Lufthansa, Malaysia Airlines, Qatar Airways, Swiss International Air Lines, Thai Airways International
Return price
฿23,520
Distance
8962 km

Perfect flights from London to Chiang Mai

Embark on an unforgettable journey without breaking the bank with Expedia's incredible deals on cheap flights from London to Chiang Mai. Whether you're aching for a romantic escape with your partner, craving an adventurous solo expedition, or yearning to immerse yourself in the local history and culture, we've got you covered.
 
Picture yourself strolling through the streets of , surrounded by breathtaking architecture and absorbing the vibrant atmosphere of this captivating city. Indulge in the mouth-watering local specialties, from tantalizing street food to exquisite fine dining. With Expedia, you can experience all of this and more, without sacrificing your budget.
 
Our flexible Heathrow to Chiang Mai Intl. ticket options cater to your travel preferences, with incredible one-way fares from ฿16,865 and roundtrip prices from ฿23,520. Whether you're planning a short city break or a longer adventure, our dynamic pricing ensures that you find the best deals for your journey.
 
But the magic doesn't stop there. Expedia offers a range of partner services to enhance your trip. Rent a car at Chiang Mai Intl. and explore and its surrounding areas at your own pace. Discover hidden gems off the beaten path, and create unforgettable memories. We also provide a handpicked selection of accommodations, from charming bed and breakfasts to luxury hotels, ensuring that you have a comfortable and memorable stay.
 
Planning your next great adventure is a breeze with Expedia. Our user-friendly platform, unbeatable prices, and round-the-clock customer support are designed to make your travel experience seamless and stress-free. So, why wait? Book your to travel arrangements today and embark on the journey of a lifetime in Chiang Mai.

Frequently asked questions

How much is a flight from Heathrow Airport to CNX?
Round-trip journeys between Heathrow Airport and Chiang Mai Airport start from ฿23,520. This price is based on fares listed within the last 7 days on Expedia for flights departing within the next year — book ASAP to avoid missing out. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from LHR to Chiang Mai Intl. Airport (CNX)?
Every air carrier has its own set of terms and conditions. If you do decide to cancel, follow the simple instructions on our Customer Service Portal.
How do I find cheap flights from Heathrow Airport to Chiang Mai Airport that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for Heathrow Airport (LHR) to Chiang Mai Airport flights, you'll see a "no change fees" filter for you to select.
How far is the flight from Heathrow Airport (LHR) to Chiang Mai Intl. Airport (CNX)?
You'll have 9,000 kilometres to cover on the long-haul Hounslow to Chiang Mai route. Dress in layers of comfortable clothes and consider taking a neck pillow with you.
Which airlines fly direct from London Heathrow to Chiang Mai Airport?
You won't find any airlines operating directly between LHR and CNX, so be prepared to make at least one stop on your journey. A layover, whether short or long, can be a welcome way to break up a trip!
Are LHR to CNX flight tickets cheaper when they're purchased at the last minute?
It is possible to pick up great last-minute deals from LHR to CNX, but it's also possible to miss out entirely! As many airlines advertise prices up to 12 months in advance, it's worth keeping an eye on fares early and being ready to book when you spot a bargain. Expedia compares carrier prices and updates flight deals frequently, so you can feel confident knowing you're always seeing the latest offers.

Explore a world of travel with Expedia

London Airports

London

Gatwick to Chiang Mai
฿31,145.00
*Available to Expedia members.