LHR - CNX

£291 Find Cheap Flights from London Heathrow Airport to Chiang Mai – Compare and Save

1 adult
1 adult, Economy, 0 bags

Save 34% or more on flights. Compare deals from all over the web.

Never overpay with our price tracking tools.

Filter searches by price, airline and more to find your best flights.

Everything you should know

Cheapest return flight
£444
Typical prices: £595-£943
China Eastern
Sat 1/12Sat 8/12
LHR - CNX • 1 stop
Cheapest one-way flight
£310
Typical prices: £360-£591
Multiple Airlines
Sun 25/11
LHR - CNX • 2 stops
Direct flights
Not available
There are currently no direct flights between London Heathrow Airport and Chiang Mai. You'll need to take a connecting flight to reach the destination.
Insights
Insights
When to book
17 weeks
in advance
Our data shows that travellers who book at least 17 weeks in advance save around 20% compared to booking last minute.
Insights
Insights
When to travel
May
Cheapest • 23% price drop
December
Most popular
Good to know
+1
Good to know
+1
Top stopover airports
Shanghai Pu Dong (PVG)
Cheapest • Avg £515 (return)
Abu Dhabi Zayed Intl (AUH)
Shortest trip • 15h 56m (one-way)
Insights
Insights
Start a new search
KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you enjoy your trip to Chiang Mai!
Flight Deals
Booking Insights
Flight Deals

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

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Heathrow to Chiang Mai

Tue, 1 Dec - Tue, 8 Dec
China Eastern Logo
12:30 - 14:20LHR  London Heathrow-CNX Chiang Mai
18h 50m1 stop Shanghai Pu Dong
China Eastern Logo
16:25 - 17:30CNX  Chiang Mai-LHR London Heathrow
32h 05m2 stops Kunming Changshui Shanghai Pu Dong
£444China Eastern
Wed, 17 Feb - Sun, 28 Feb
Air China Logo
20:25 - 21:50LHR  London Heathrow-CNX Chiang Mai
18h 25m1 stop Beijing Capital
Air China Logo
23:05 - 17:50CNX  Chiang Mai-LHR London Heathrow
25h 45m1 stop Beijing Capital
£445Air China
Sun, 29 Nov - Sun, 20 Dec
Air China Logo
17:45 - 21:50LHR  London Heathrow-CNX Chiang Mai
21h 05m1 stop Beijing Capital
Air China Logo
23:05 - 15:55CNX  Chiang Mai-LHR London Heathrow
23h 50m1 stop Beijing Capital
£447Air China
Tue, 1 Dec - Tue, 8 Dec
China Eastern Logo
12:30 - 14:20LHR  London Heathrow-CNX Chiang Mai
18h 50m1 stop Shanghai Pu Dong
China Eastern Logo
16:25 - 17:30CNX  Chiang Mai-LHR London Heathrow
32h 05m2 stops Kunming Changshui Shanghai Pu Dong
£453China Eastern
Mon, 9 Nov - Mon, 23 Nov
Multiple Airlines Logo
21:10 - 09:05LHR  London Heathrow-CNX Chiang Mai
28h 55m2 stops Shenzhen Bangkok Suvarnabhumi
Multiple Airlines Logo
09:10 - 18:10CNX  Chiang Mai-LHR London Heathrow
16h 00m1 stop Abu Dhabi Zayed Intl
£522Multiple Airlines
Tue, 24 Nov - Thu, 3 Dec
Etihad Airways Logo
08:40 - 06:25LHR  London Heathrow-CNX Chiang Mai
14h 45m1 stop Abu Dhabi Zayed Intl
Etihad Airways Logo
09:10 - 18:10CNX  Chiang Mai-LHR London Heathrow
16h 00m1 stop Abu Dhabi Zayed Intl
£534Etihad Airways
Mon, 7 Dec - Fri, 5 Mar
Etihad Airways Logo
13:55 - 06:25LHR  London Heathrow-CNX Chiang Mai
33h 30m1 stop Abu Dhabi Zayed Intl
Etihad Airways Logo
20:55 - 06:40CNX  Chiang Mai-LHR London Heathrow
16h 45m1 stop Abu Dhabi Zayed Intl
£537Etihad Airways
Fri, 27 Nov - Sat, 12 Dec
Multiple Airlines Logo
12:30 - 22:45LHR  London Heathrow-CNX Chiang Mai
27h 15m2 stops Xiamen Gaoqi Intl Bangkok Suvarnabhumi
Multiple Airlines Logo
12:30 - 14:10CNX  Chiang Mai-LHR London Heathrow
32h 40m2 stops Bangkok Suvarnabhumi Xiamen Gaoqi Intl
£538Multiple Airlines
Fri, 9 Apr - Sun, 18 Apr
Austrian Airlines Logo
19:30 - 19:10LHR  London Heathrow-CNX Chiang Mai
17h 40m2 stops Vienna Intl Bangkok Suvarnabhumi
Austrian Airlines Logo
20:00 - 08:20CNX  Chiang Mai-LHR London Heathrow
18h 20m2 stops Bangkok Suvarnabhumi Vienna Intl
£717Austrian Airlines
Thu, 25 Mar - Tue, 20 Apr
Austrian Airlines Logo
06:00 - 16:25LHR  London Heathrow-CNX Chiang Mai
27h 25m2 stops Vienna Intl Bangkok Suvarnabhumi
Austrian Airlines Logo
10:10 - 21:40CNX  Chiang Mai-LHR London Heathrow
17h 30m2 stops Bangkok Suvarnabhumi Vienna Intl
£761Austrian Airlines
Booking Insights

Price, demand, and travel trends for London Heathrow Airport to Chiang Mai flights

Use KAYAK data on prices, travel dates, airlines, and seasonal trends to compare options and book flights with more confidence.

How much is a return flight from London Heathrow Airport to Chiang Mai?

Return flights from London Heathrow Airport to Chiang Mai typically range from £595 to £943. The lowest price found in the past 5 days was £444 on China Eastern.

What's the cheapest day of the week to fly from London Heathrow Airport to Chiang Mai?

Based on deals KAYAK users found in the last 12 months, Wednesday is the cheapest day of the week to fly from London Heathrow Airport to Chiang Mai. It's 8% cheaper than the average day, while Sunday is the most expensive, with prices 6% higher.

What is the cheapest month to fly from London Heathrow Airport to Chiang Mai?

•May is the cheapest month to fly from London Heathrow Airport to Chiang Mai at £585 return.
•December (£1,042) and July (£1,034) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 77% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are flights from London Heathrow Airport to Chiang Mai the cheapest?

Flights from London Heathrow Airport to Chiang Mai are cheapest 17 weeks before departure. Booking in this window typically costs about 20% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

Find deals

Key details for London Heathrow Airport to Chiang Mai flights

Low season

August

Cheapest flight

£310
Beat the crowds with an average 44% drop in traveller numbers.
The most popular month to fly with an average 52% increase in traveller numbers.
One-way flight from London Heathrow Airport to Chiang Mai

When to book flights from Heathrow to Chiang Mai

Are your dates flexible? Find out the best times to travel from Heathrow to Chiang Mai based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price

Your London Heathrow Airport to Chiang Mai flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines, and booking tips.

  • Which cabin classes can I book on flights from London Heathrow Airport to Chiang Mai?

    Four cabin classes are available on flights from London Heathrow Airport to Chiang Mai:

    • Economy class
    • Premium Economy Class
    • Business Class
    • First Class

    Prices vary by airline.

  • How long is a flight from London Heathrow Airport to Chiang Mai?

    A direct flight from London Heathrow Airport to Chiang Mai takes 00m, covering 5,598 miles.

  • Do I need a passport to fly from London Heathrow Airport to Chiang Mai?

    Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

  • How much should I expect to pay for a London Heathrow Airport to Chiang Mai flight?

    Return flights from London Heathrow Airport to Chiang Mai range from £595 to £943, with an average of £756 over the past 12 months. Anything below £595 counts as a good deal.

  • How expensive are last-minute London Heathrow Airport to Chiang Mai flights?

    Last-minute fares on this route (booked within two weeks of departure) run 9% above the £756 route average. Book 17 weeks before departure for the lowest fares.

  • How are flight prices from London Heathrow Airport to Chiang Mai looking right now?

    One-way fares from London Heathrow Airport to Chiang Mai are currently lower than usual. Average one-way flight prices are about £406, which is 16% below the typical average for this route.

  • Which car hire options are available at Chiang Mai Airport (CNX)?

    Chiang Mai Airport (CNX) hosts 5 major car hire companies, with daily rates starting from around £23 for economy cars. Top options include:

    • Drive Car Rental
    • Alamo
    • Sixt
    • Yesaway
    • ASAP Car Rentals

  • Which airports can I use when flying from London Heathrow Airport to Chiang Mai?

    Flights from London Heathrow Airport to Chiang Mai usually depart from London Heathrow (LHR) and arrive at Chiang Mai (CNX).

  • Which airports do connecting flights from London Heathrow Airport to Chiang Mai pass through?

    One-stop flights from London Heathrow Airport to Chiang Mai most commonly connect through:

    • Bangkok Suvarnabhumi (BKK) – 40% of one-stop connections
    • Abu Dhabi Zayed Intl (AUH) – 29% of one-stop connections
    • Beijing Capital (PEK) – 21% of one-stop connections
    • Hong Kong Intl (HKG) – 4% of one-stop connections

  • Can I save money by using flexible dates for flights from London Heathrow Airport to Chiang Mai?

    Yes. Flexible dates can save you up to 13% on flights from London Heathrow Airport to Chiang Mai. Wednesday is the cheapest departure day at £703 return on average, while Sunday is the most expensive at £804, a difference of £101.

    KAYAK's flexible dates feature shows options up to three days before and after your selected dates, making it easier to compare nearby fares.

  • How much time can I save by choosing a different stopover airport from London Heathrow Airport to Chiang Mai?

    Flying via Abu Dhabi Zayed Intl (AUH) gives the shortest average 1-stop total travel time of 15h 56m, compared to 16h 05m via Bangkok Suvarnabhumi (BKK) and 19h 50m via Hong Kong Intl (HKG).

  • What is the time difference between London Heathrow Airport and Chiang Mai?

    Chiang Mai is 7 hours ahead of London Heathrow Airport (Indochina Time vs British Time). Plan for the time shift when scheduling connections or first-day activities.

  • What popular places can I visit in Chiang Mai?

    Some of the most popular sights in Chiang Mai are Chiang Mai Night Bazaar, Suan Dok Gate, and Sunday Walking Street Market. These are among the most viewed places in Chiang Mai on KAYAK.

Your guide to booking London Heathrow Airport to Chiang Mai flights

Get tips on when to book, when to fly, and what to know before your trip.
  • If your dates are flexible, aim for a Wednesday departure and avoid flying on Sunday. On this route, Wednesday flights average £703, about £101 less than Sunday fares (13% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 17 weeks before you fly. On this route, that window historically saves about 20% versus last-minute pricing (KAYAK booking data, last 12 months).
  • If you can choose when to travel, plan your London Heathrow Airport to Chiang Mai trip for May. Fares historically average £585 return in that month – typically £456 less than the most expensive month, which is December (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Chiang Mai Airport.

    • De Lanna Hotel
    • Bodhi Serene, Chiang Mai
    • 99 The Gallery Hotel

More options for your flight from Heathrow to Chiang Mai

Complete your trip to Chiang Mai with a hotel stay or car hire

Car hire in Chiang Mai
Hotels in Chiang Mai
Holidays in Chiang Mai