Cheap Flights from London (LHR) to Chiang Mai (CNX) from HK$4,123~

View HK$4,123 flight on Sun, 30 Nov 2025Opens in a new window

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

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

Prices were available within the past 7 days and start at HK$4,123 for one-way flights and HK$6,815 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Austrian Airlines
Sat, 13 Sep - Sun, 28 Sep
LHR
London
CNX
Chiang Mai
HK$6,815 Return, found 1 day ago
HK$6,815
Return
found 1 day ago
Select Austrian Airlines flight, departing Sat, 13 Sep from London to Chiang Mai, returning Sun, 28 Sep, priced at HK$6,815 found 1 day ago
Swiss International Air Lines
Sat, 13 Sep - Sun, 28 Sep
LHR
London
CNX
Chiang Mai
HK$6,830 Return, found 1 day ago
HK$6,830
Return
found 1 day ago
Select Swiss International Air Lines flight, departing Sat, 13 Sep from London to Chiang Mai, returning Sun, 28 Sep, priced at HK$6,830 found 1 day ago
Austrian Airlines
Sat, 13 Sep - Sun, 28 Sep
LHR
London
CNX
Chiang Mai
HK$7,089 Return, found 1 day ago
HK$7,089
Return
found 1 day ago
Select Austrian Airlines flight, departing Sat, 13 Sep from London to Chiang Mai, returning Sun, 28 Sep, priced at HK$7,089 found 1 day ago
Etihad Airways
Sun, 30 Nov - Thu, 4 Dec
LHR
London
CNX
Chiang Mai
HK$7,090 Return, found 6 days ago
HK$7,090
Return
found 6 days ago
Select Etihad Airways flight, departing Sun, 30 Nov from London to Chiang Mai, returning Thu, 4 Dec, priced at HK$7,090 found 6 days ago
Swiss International Air Lines
Sat, 13 Sep - Sun, 28 Sep
LHR
London
CNX
Chiang Mai
HK$7,114 Return, found 1 day ago
HK$7,114
Return
found 1 day ago
Select Swiss International Air Lines flight, departing Sat, 13 Sep from London to Chiang Mai, returning Sun, 28 Sep, priced at HK$7,114 found 1 day ago
Austrian Airlines
Sat, 13 Sep - Sun, 28 Sep
LHR
London
CNX
Chiang Mai
HK$7,117 Return, found 1 day ago
HK$7,117
Return
found 1 day ago
Select Austrian Airlines flight, departing Sat, 13 Sep from London to Chiang Mai, returning Sun, 28 Sep, priced at HK$7,117 found 1 day ago
Swiss International Air Lines
Sat, 13 Sep - Sun, 28 Sep
LHR
London
CNX
Chiang Mai
HK$7,684 Return, found 1 day ago
HK$7,684
Return
found 1 day ago
Select Swiss International Air Lines flight, departing Sat, 13 Sep from London to Chiang Mai, returning Sun, 28 Sep, priced at HK$7,684 found 1 day ago
Gulf Air
Sat, 13 Sep - Sun, 28 Sep
LHR
London
CNX
Chiang Mai
HK$8,366 Return, found 1 day ago
HK$8,366
Return
found 1 day ago
Select Gulf Air flight, departing Sat, 13 Sep from London to Chiang Mai, returning Sun, 28 Sep, priced at HK$8,366 found 1 day ago
EVA Airways
Sat, 13 Sep - Sun, 28 Sep
LHR
London
CNX
Chiang Mai
HK$8,717 Return, found 1 day ago
HK$8,717
Return
found 1 day ago
Select EVA Airways flight, departing Sat, 13 Sep from London to Chiang Mai, returning Sun, 28 Sep, priced at HK$8,717 found 1 day ago
Malaysia Airlines
Sat, 13 Sep - Sun, 28 Sep
LHR
London
CNX
Chiang Mai
HK$9,058 Return, found 1 day ago
HK$9,058
Return
found 1 day ago
Select Malaysia Airlines flight, departing Sat, 13 Sep from London to Chiang Mai, returning Sun, 28 Sep, priced at HK$9,058 found 1 day ago
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, China Southern Airlines, EVA Airways, Etihad Airways, Finnair, Gulf Air, Malaysia Airlines, Qatar Airways, Singapore Airlines, Swiss International Air Lines, Thai Airways International, Turkish Airlines
Return price
HK$6,815
Distance
8962 km

Flights from London to Chiang Mai

Book cheap flights from London (LHR) to Chiang Mai (CNX) on Expedia.com.hk. Find the best flight deals to destinations around the world for your next leisure or business travel on Expedia.com.hk.

Search for flights from London (LHR) to Chiang Mai (CNX) to find great flight deals suitable to your travel date and time. Expedia.com.hk flight booking search engine is simple to use and looking for cheap flights is as easy as a click of a mouse or on your mobile devices.

Be assured that you’re seeing the best price guaranteed! Our friendly customer service representatives are here to serve you 24 hours day to provide assistance and answer any questions that you may have about booking your London (LHR) to Chiang Mai (CNX) trip. Call us at 3077-4857 (direct number - 24 hours day for English).

Save more when combine your Chiang Mai flight with a hotel for a package deal! Discover additional savings by booking in advance. Now you can find activities in Chiang Mai and things to do in Chiang Mai for your perfect vacation with Expedia Thing to Do.

If you would like to book flights to Chiang Mai more flexibly, many prefer to purchase one-way tickets with options to take different airlines. A one way ticket to Chiang Mai is HK$4,123 now!

 

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 HK$6,815. 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 kilometers 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.

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