฿16,700 Cheap Flights from London (LHR) to Chiang Mai (CNX)

View ฿16,700 flight on Sun, 21 Sep 2025Opens in a new window

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

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

Prices were available within the past 7 days and start at ฿16,700 for one-way flights and ฿22,730 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Etihad Airways
Thu, 13 Nov - Thu, 20 Nov
LHR
London
CNX
Chiang Mai
฿22,730 Return, found 6 hours ago
฿22,730
Return
found 6 hours ago
Select Etihad Airways flight, departing Thu, 13 Nov from London to Chiang Mai, returning Thu, 20 Nov, priced at ฿22,730 found 6 hours ago
Etihad Airways
Sun, 23 Nov - Mon, 1 Dec
LHR
London
CNX
Chiang Mai
฿23,620 Return, found 4 days ago
฿23,620
Return
found 4 days ago
Select Etihad Airways flight, departing Sun, 23 Nov from London to Chiang Mai, returning Mon, 1 Dec, priced at ฿23,620 found 4 days ago
Etihad Airways
Sat, 6 Dec - Mon, 26 Jan
LHR
London
CNX
Chiang Mai
฿24,470 Return, found 2 days ago
฿24,470
Return
found 2 days ago
Select Etihad Airways flight, departing Sat, 6 Dec from London to Chiang Mai, returning Mon, 26 Jan, priced at ฿24,470 found 2 days ago
China Eastern Airlines
Sun, 14 Sep - Sun, 7 Dec
LHR
London
CNX
Chiang Mai
฿24,810 Return, found 2 days ago
฿24,810
Return
found 2 days ago
Select China Eastern Airlines flight, departing Sun, 14 Sep from London to Chiang Mai, returning Sun, 7 Dec, priced at ฿24,810 found 2 days ago
Etihad Airways
Sun, 23 Nov - Mon, 1 Dec
LHR
London
CNX
Chiang Mai
฿24,950 Return, found 4 days ago
฿24,950
Return
found 4 days ago
Select Etihad Airways flight, departing Sun, 23 Nov from London to Chiang Mai, returning Mon, 1 Dec, priced at ฿24,950 found 4 days ago
Etihad Airways
Sat, 6 Dec - Mon, 26 Jan
LHR
London
CNX
Chiang Mai
฿25,790 Return, found 2 days ago
฿25,790
Return
found 2 days ago
Select Etihad Airways flight, departing Sat, 6 Dec from London to Chiang Mai, returning Mon, 26 Jan, priced at ฿25,790 found 2 days ago
Austrian Airlines
Thu, 13 Nov - Thu, 20 Nov
LHR
London
CNX
Chiang Mai
฿26,530 Return, found 6 hours ago
฿26,530
Return
found 6 hours ago
Select Austrian Airlines flight, departing Thu, 13 Nov from London to Chiang Mai, returning Thu, 20 Nov, priced at ฿26,530 found 6 hours ago
Cathay Pacific
Tue, 18 Nov - Tue, 27 Jan
LHR
London
CNX
Chiang Mai
฿31,110 Return, found 5 days ago
฿31,110
Return
found 5 days ago
Select Cathay Pacific flight, departing Tue, 18 Nov from London to Chiang Mai, returning Tue, 27 Jan, priced at ฿31,110 found 5 days ago
Swiss International Air Lines
Thu, 13 Nov - Thu, 20 Nov
LHR
London
CNX
Chiang Mai
฿32,570 Return, found 6 hours ago
฿32,570
Return
found 6 hours ago
Select Swiss International Air Lines flight, departing Thu, 13 Nov from London to Chiang Mai, returning Thu, 20 Nov, priced at ฿32,570 found 6 hours ago
China Airlines
Mon, 6 Oct - Mon, 13 Oct
LHR
London
CNX
Chiang Mai
฿35,980 Return, found 1 day ago
฿35,980
Return
found 1 day ago
Select China Airlines flight, departing Mon, 6 Oct from London to Chiang Mai, returning Mon, 13 Oct, priced at ฿35,980 found 1 day ago
Flight from London to Chiang Mai route information
Origin airport
Heathrow
Destination airport
Chiang Mai Intl.
Airlines serving
Austrian Airlines, Cathay Pacific, China Airlines, China Eastern Airlines, EVA Airways, Etihad Airways, Finnair, Malaysia Airlines, Qatar Airways, Swiss International Air Lines, Thai Airways International, Turkish Airlines
Return price
฿22,730
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 ฿16,700 and roundtrip prices from ฿22,730. 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 ฿22,730. 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
฿25,690.00
*Available to Expedia members.