S$697 Cheap Flights from London to Chiang Mai

Airlines that fly 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 to Chiang Mai (LHR-CNX)

Prices were available within the past 7 days and start at S$697 for one-way flights and S$1,043 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

China Eastern Airlines
Tue, 7 Jan - Tue, 21 Jan
LHR
London
CNX
Chiang Mai
S$1,043 Return, found 5 days ago
S$1,043
Return
found 5 days ago
Select China Eastern Airlines flight, departing Tue, 7 Jan from London to Chiang Mai, returning Tue, 21 Jan, priced at S$1,043 found 5 days ago
China Eastern Airlines
Tue, 7 Jan - Tue, 14 Jan
LHR
London
CNX
Chiang Mai
S$1,190 Return, found 6 days ago
S$1,190
Return
found 6 days ago
Select China Eastern Airlines flight, departing Tue, 7 Jan from London to Chiang Mai, returning Tue, 14 Jan, priced at S$1,190 found 6 days ago
Qatar Airways
Mon, 2 Dec - Mon, 9 Dec
LHR
London
CNX
Chiang Mai
S$1,565 Return, found 4 hours ago
S$1,565
Return
found 4 hours ago
Select Qatar Airways flight, departing Mon, 2 Dec from London to Chiang Mai, returning Mon, 9 Dec, priced at S$1,565 found 4 hours ago
Etihad Airways
Tue, 7 Jan - Tue, 21 Jan
LHR
London
CNX
Chiang Mai
S$1,617 Return, found 5 days ago
S$1,617
Return
found 5 days ago
Select Etihad Airways flight, departing Tue, 7 Jan from London to Chiang Mai, returning Tue, 21 Jan, priced at S$1,617 found 5 days ago
Thai Airways International
Sun, 12 Jan - Sun, 19 Jan
LHR
London
CNX
Chiang Mai
S$1,621 Return, found 1 day ago
S$1,621
Return
found 1 day ago
Select Thai Airways International flight, departing Sun, 12 Jan from London to Chiang Mai, returning Sun, 19 Jan, priced at S$1,621 found 1 day ago
Etihad Airways
Tue, 7 Jan - Tue, 21 Jan
LHR
London
CNX
Chiang Mai
S$1,637 Return, found 5 days ago
S$1,637
Return
found 5 days ago
Select Etihad Airways flight, departing Tue, 7 Jan from London to Chiang Mai, returning Tue, 21 Jan, priced at S$1,637 found 5 days ago
Cathay Pacific
Mon, 2 Dec - Mon, 9 Dec
LHR
London
CNX
Chiang Mai
S$1,649 Return, found 4 hours ago
S$1,649
Return
found 4 hours ago
Select Cathay Pacific flight, departing Mon, 2 Dec from London to Chiang Mai, returning Mon, 9 Dec, priced at S$1,649 found 4 hours ago
Cathay Pacific
Mon, 2 Dec - Mon, 9 Dec
LHR
London
CNX
Chiang Mai
S$1,670 Return, found 4 hours ago
S$1,670
Return
found 4 hours ago
Select Cathay Pacific flight, departing Mon, 2 Dec from London to Chiang Mai, returning Mon, 9 Dec, priced at S$1,670 found 4 hours ago
Cathay Pacific
Sun, 1 Dec - Sun, 15 Dec
LHR
London
CNX
Chiang Mai
S$1,680 Return, found 1 day ago
S$1,680
Return
found 1 day ago
Select Cathay Pacific flight, departing Sun, 1 Dec from London to Chiang Mai, returning Sun, 15 Dec, priced at S$1,680 found 1 day ago
Cathay Pacific
Sun, 1 Dec - Sun, 15 Dec
LHR
London
CNX
Chiang Mai
S$1,701 Return, found 1 day ago
S$1,701
Return
found 1 day ago
Select Cathay Pacific flight, departing Sun, 1 Dec from London to Chiang Mai, returning Sun, 15 Dec, priced at S$1,701 found 1 day ago
Beautiful view of the beach with palm trees

Black Friday: Members save 30%+

Members save 30%+ on selected hotels until 4 Dec (property time) with our Black Friday deals. Stay by 15 Dec 2025.
Unlock Black Friday deals
London to Chiang Mai route information
Origin airport
Heathrow
Destination airport
Chiang Mai Intl.
Airlines serving
Asiana Airlines, Austrian Airlines, Cathay Pacific, China Southern Airlines, EVA Airways, Etihad Airways, Finnair, Gulf Air, Korean Air, Malaysia Airlines, Qatar Airways, Swiss International Air Lines, Thai Airways International, Turkish Airlines
Return price
S$1,042
Distance
8962 km

Perfect flights from London to Chiang Mai

Your Journey from London to Chiang Mai

Start your unforgettable journey with Expedia. Our broad selection of flights from London to Chiang Mai caters to every travel need. Whether you're yearning for a romantic escape, a solo adventure, or a cultural immersion, we've got you covered.
 

Choosing Your Ideal Flight

With Expedia, you have access to a wide range of airlines, including China Eastern Airlines, Cathay Pacific, Etihad Airways, Malaysia Airlines, Thai Airways International, EVA Airways, Qatar Airways, China Airlines. Our selection of flights from Heathrow to Chiang Mai Intl. caters to every traveler's requirements, ensuring your journey aligns with your schedule. With options from 20 airlines, you're bound to find the perfect flight.
 

Maximizing Value with London to Chiang Mai Flights

Experience the joy of finding cheap flights from Heathrow to Chiang Mai Intl. that fit your budget. Keep an eye out for our special deals and discounts, and check our flexible one-way fares from S$697 and roundtrip prices from S$1,043*.
 

Pre-Flight Essentials

Ensure a smooth journey from London to Chiang Mai with Expedia. From information about check-in times and in-flight amenities to guidance on baggage policies, we provide all the essentials to prepare you for your flight.
 

Experience the Vibrant Chiang Mai

Picture yourself stepping off the plane in Chiang Mai and immersing yourself in the unique atmosphere of . From local markets to cultural festivals, each city offers its distinct charm. Make the most of your trip by exploring local attractions and indulging in the local cuisine. With Expedia, explore all this and more, tailored to your budget.
 

Added Convenience on Your London to Chiang Mai Flight

Traveling with Expedia is more than just a flight. We offer details about in-flight amenities, baggage policies, and more to ensure a smooth and hassle-free journey. Choose from our variety of airlines and embark on a memorable journey from London to Chiang Mai.
 

Beyond the Flight – Exploring Chiang Mai

With Expedia, your adventure extends beyond the flight. Explore Chiang Mai at your own pace by renting a car or booking a hotel. Discover hidden gems off the beaten path and create unforgettable memories.
 

Book Your Flight from London to Chiang Mai with Confidence

Planning your next great adventure is a breeze with Expedia. Our user-friendly platform, unbeatable prices, and round-the-clock customer support make your travel experience seamless and stress-free. Embark on your journey from London to Chiang Mai with confidence. Book your travel arrangements with Expedia today.
 
*Note: Prices may vary based on availability and are subject to change.

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 S$1,043. 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.
London Airports

London

*Available to Expedia members.