฿12,225 Cheap Flights from London (LHR) to Chiang Mai (CNX)

View ฿12,225 flight on Mon, 2 Mar 2026Opens in a new window

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

  • notification illustration

    Be in the know

    Get alerts if flight prices drop or rise*
  • deals illustration

    Book smarter

    Save up to 40% on select hotels after you book a flight*
  • trophy illustration

    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 ฿12,225 for one-way flights and ฿17,440 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

China Eastern Airlines
Sun, 1 Mar - Sun, 22 Mar
LHR
London
CNX
Chiang Mai
฿17,440 Return, found 6 days ago
฿17,440
Return
found 6 days ago
Select China Eastern Airlines flight, departing Sun, 1 Mar from London to Chiang Mai, returning Sun, 22 Mar, priced at ฿17,440 found 6 days ago
China Eastern Airlines
Sat, 7 Mar - Sun, 22 Mar
LHR
London
CNX
Chiang Mai
฿17,665 Return, found 6 days ago
฿17,665
Return
found 6 days ago
Select China Eastern Airlines flight, departing Sat, 7 Mar from London to Chiang Mai, returning Sun, 22 Mar, priced at ฿17,665 found 6 days ago
China Eastern Airlines
Sun, 25 Jan - Wed, 4 Feb
LHR
London
CNX
Chiang Mai
฿17,715 Return, found 3 days ago
฿17,715
Return
found 3 days ago
Select China Eastern Airlines flight, departing Sun, 25 Jan from London to Chiang Mai, returning Wed, 4 Feb, priced at ฿17,715 found 3 days ago
Air China
Sat, 7 Mar - Mon, 16 Mar
LHR
London
CNX
Chiang Mai
฿21,725 Return, found 6 days ago
฿21,725
Return
found 6 days ago
Select Air China flight, departing Sat, 7 Mar from London to Chiang Mai, returning Mon, 16 Mar, priced at ฿21,725 found 6 days ago
Etihad Airways
Wed, 18 Feb - Thu, 5 Mar
LHR
London
CNX
Chiang Mai
฿22,260 Return, found 6 days ago
฿22,260
Return
found 6 days ago
Select Etihad Airways flight, departing Wed, 18 Feb from London to Chiang Mai, returning Thu, 5 Mar, priced at ฿22,260 found 6 days ago
Austrian Airlines
Wed, 6 May - Wed, 13 May
LHR
London
CNX
Chiang Mai
฿25,880 Return, found 12 hours ago
฿25,880
Return
found 12 hours ago
Select Austrian Airlines flight, departing Wed, 6 May from London to Chiang Mai, returning Wed, 13 May, priced at ฿25,880 found 12 hours ago
Lufthansa
Tue, 19 May - Wed, 10 Jun
LHR
London
CNX
Chiang Mai
฿26,140 Return, found 2 days ago
฿26,140
Return
found 2 days ago
Select Lufthansa flight, departing Tue, 19 May from London to Chiang Mai, returning Wed, 10 Jun, priced at ฿26,140 found 2 days ago
Swiss International Air Lines
Tue, 19 May - Wed, 10 Jun
LHR
London
CNX
Chiang Mai
฿26,185 Return, found 2 days ago
฿26,185
Return
found 2 days ago
Select Swiss International Air Lines flight, departing Tue, 19 May from London to Chiang Mai, returning Wed, 10 Jun, priced at ฿26,185 found 2 days ago
Malaysia Airlines
Sun, 1 Feb - Sat, 7 Feb
LHR
London
CNX
Chiang Mai
฿27,110 Return, found 3 days ago
฿27,110
Return
found 3 days ago
Select Malaysia Airlines flight, departing Sun, 1 Feb from London to Chiang Mai, returning Sat, 7 Feb, priced at ฿27,110 found 3 days ago
Cathay Pacific
Fri, 16 Jan - Fri, 23 Jan
LHR
London
CNX
Chiang Mai
฿28,080 Return, found 18 hours ago
฿28,080
Return
found 18 hours ago
Select Cathay Pacific flight, departing Fri, 16 Jan from London to Chiang Mai, returning Fri, 23 Jan, priced at ฿28,080 found 18 hours ago

Alternative airports near Chiang Mai

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Chiang Mai Intl. CNX. Cheapest and Closest option available. Average driving time to city centre is 10 minutes. Flights from ฿29,150
CNX
Chiang Mai Intl.
CheapestClosest
Average driving time to city centre10 min
Flights from ฿29,150

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 ฿17,440. 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.

Travel information

Origin airport
Heathrow
Destination airport
Chiang Mai Intl.
Airlines serving
Air China, Austrian Airlines, Cathay Pacific, China Eastern Airlines, China Southern Airlines, EVA Airways, Etihad Airways, Finnair, Gulf Air, KLM, Korean Air, Lufthansa, Malaysia Airlines, Qatar Airways, Swiss International Air Lines, Thai Airways International, Turkish Airlines
Return price
฿17,440
Distance
8962 km

Book with confidence

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 ฿12,225 and roundtrip prices from ฿17,440. 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.
Perfect flights from London to Chiang Mai
*Available to Expedia members.