S$627 Cheap Flights from London to Chiang Mai

View S$627 flight on Thu, 1 Jan, 2026Opens in a new window

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

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

Prices were available within the past 7 days and start at S$627 for one-way flights and S$857 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Air China
Thu, 15 Jan - Fri, 30 Jan
LHR
London
CNX
Chiang Mai
S$857 Return, found 3 days ago
S$857
Return
found 3 days ago
Select Air China flight, departing Thu, 15 Jan from London to Chiang Mai, returning Fri, 30 Jan, priced at S$857 found 3 days ago
Air China
Thu, 1 Jan - Tue, 20 Jan
LHR
London
CNX
Chiang Mai
S$887 Return, found 4 days ago
S$887
Return
found 4 days ago
Select Air China flight, departing Thu, 1 Jan from London to Chiang Mai, returning Tue, 20 Jan, priced at S$887 found 4 days ago
Air China
Fri, 14 Nov - Fri, 21 Nov
LHR
London
CNX
Chiang Mai
S$926 Return, found 4 days ago
S$926
Return
found 4 days ago
Select Air China flight, departing Fri, 14 Nov from London to Chiang Mai, returning Fri, 21 Nov, priced at S$926 found 4 days ago
China Eastern Airlines
Thu, 8 Jan - Thu, 29 Jan
LHR
London
CNX
Chiang Mai
S$1,230 Return, found 5 days ago
S$1,230
Return
found 5 days ago
Select China Eastern Airlines flight, departing Thu, 8 Jan from London to Chiang Mai, returning Thu, 29 Jan, priced at S$1,230 found 5 days ago
Etihad Airways
Thu, 1 Jan - Tue, 20 Jan
LHR
London
CNX
Chiang Mai
S$1,230 Return, found 4 days ago
S$1,230
Return
found 4 days ago
Select Etihad Airways flight, departing Thu, 1 Jan from London to Chiang Mai, returning Tue, 20 Jan, priced at S$1,230 found 4 days ago
Cathay Pacific
Thu, 15 Jan - Fri, 30 Jan
LHR
London
CNX
Chiang Mai
S$1,240 Return, found 3 days ago
S$1,240
Return
found 3 days ago
Select Cathay Pacific flight, departing Thu, 15 Jan from London to Chiang Mai, returning Fri, 30 Jan, priced at S$1,240 found 3 days ago
Air China
Thu, 15 Jan - Fri, 30 Jan
LHR
London
CNX
Chiang Mai
S$1,251 Return, found 3 days ago
S$1,251
Return
found 3 days ago
Select Air China flight, departing Thu, 15 Jan from London to Chiang Mai, returning Fri, 30 Jan, priced at S$1,251 found 3 days ago
Air China
Thu, 1 Jan - Tue, 20 Jan
LHR
London
CNX
Chiang Mai
S$1,253 Return, found 4 days ago
S$1,253
Return
found 4 days ago
Select Air China flight, departing Thu, 1 Jan from London to Chiang Mai, returning Tue, 20 Jan, priced at S$1,253 found 4 days ago
Cathay Pacific
Thu, 8 Jan - Thu, 29 Jan
LHR
London
CNX
Chiang Mai
S$1,282 Return, found 5 days ago
S$1,282
Return
found 5 days ago
Select Cathay Pacific flight, departing Thu, 8 Jan from London to Chiang Mai, returning Thu, 29 Jan, priced at S$1,282 found 5 days ago
China Southern Airlines
Thu, 15 Jan - Fri, 30 Jan
LHR
London
CNX
Chiang Mai
S$1,309 Return, found 3 days ago
S$1,309
Return
found 3 days ago
Select China Southern Airlines flight, departing Thu, 15 Jan from London to Chiang Mai, returning Fri, 30 Jan, priced at S$1,309 found 3 days ago

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$857. 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

Travel information

Origin airport
Heathrow
Destination airport
Chiang Mai Intl.
Return price
S$857
Distance
8962 km

Book with confidence

Book with confidence

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 Air China, Swiss International Air Lines, Etihad Airways, Malaysia Airlines, Austrian Airlines, China Eastern Airlines, Cathay Pacific, China Southern 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$627 and roundtrip prices from S$857*.
 

Pre-Flight Essentials

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Experience the Vibrant Chiang Mai

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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

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*Note: Prices may vary based on availability and are subject to change.
Perfect flights from London to Chiang Mai

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