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Cheap flights from Chiang Mai to London Heathrow Airport from ฿12,787

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/9. Fares are subject to change and may not be available on all flights or dates of travel.
CNX — LHR
11 Aug — 18 Aug1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Chiang Mai to Heathrow

Enter your travel dates to find the best prices.

Cheapest flights from Chiang Mai to Heathrow
Explore the most affordable flight options available from Chiang Mai to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 12 July 2026.

Tue 28/700:30
CNX
-
LHR
1 stop24h 10m
Multiple Airlines
Mon 24/822:40
LHR
-
CNX
1 stop17h 10m
Multiple Airlines
Deal found 11/7฿26,437
Tue 21/700:30
CNX
-
LHR
1 stop24h 10m
Multiple Airlines
Fri 21/822:40
LHR
-
CNX
1 stop17h 10m
Multiple Airlines
Deal found 10/7฿26,570
Sun 26/700:30
CNX
-
LHR
1 stop24h 10m
Multiple Airlines
Wed 19/809:55
LHR
-
CNX
2 stops29h 55m
Multiple Airlines
Deal found 8/7฿27,300
Thu 20/823:05
CNX
-
LHR
1 stop24h 35m
Air China
Wed 26/820:25
LHR
-
CNX
1 stop19h 25m
Air China
Deal found 8/7฿28,662
Thu 20/822:30
CNX
-
LHR
2 stops26h 50m
Multiple Airlines
Wed 26/820:25
LHR
-
CNX
1 stop19h 25m
Multiple Airlines
Deal found 8/7฿28,795
Tue 28/700:30
CNX
-
LHR
1 stop24h 10m
China Eastern
Wed 26/821:20
LHR
-
CNX
2 stops36h 00m
China Eastern
Deal found 10/7฿28,994
Wed 29/711:50
CNX
-
LHR
2 stops35h 55m
Multiple Airlines
Fri 28/820:25
LHR
-
CNX
1 stop19h 25m
Multiple Airlines
Deal found 12/7฿29,061
Thu 16/718:50
CNX
-
LHR
1 stop30h 30m
Multiple Airlines
Sun 16/821:20
LHR
-
CNX
1 stop20h 00m
Multiple Airlines
Deal found 9/7฿31,518

Find flight deals from Chiang Mai to Heathrow

Discover tips and strategies to find the most affordable flight options for your journey from Chiang Mai (CNX) to Heathrow (LHR). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 12 July 2026.

Round-trip from

฿26,437

One-way from

฿12,787
Air China
  • Air China
  • 28/7-26/8
  • 2 total stops
  • 41h 20m total
  • Chiang Mai to London
Search Deals
เอทิฮัดแอร์เวย์
  • เอทิฮัดแอร์เวย์
  • 11/9
  • 2 total stops
  • 26h 50m total
  • Chiang Mai to London
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Chiang Mai to Heathrow that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 17,341 searches. Data last updated 12 July 2026.
Use the filters below to find and compare flights from Chiang Mai to London Heathrow Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

Chiang MaiLondon

CNX - LHR

CNXLHR

Chiang Mai

Wed 22/7

19:00-18:20

2 stops29h 20m

London Heathrow

Fri 21/8

20:25-21:50

1 stop19h 25m

฿26,968
Fastest return journey

Chiang MaiLondon

CNX - LHR

CNXLHR

Chiang Mai

Thu 20/8

23:05-17:40

1 stop24h 35m

London Heathrow

Wed 26/8

20:25-21:50

1 stop19h 25m

฿28,662

Chiang MaiLondon

CNX - LHR

CNXLHR

Chiang Mai

Mon 27/7

16:50-18:55

2 stops32h 05m

London Heathrow

Tue 18/8

14:45-19:10

2 stops22h 25m

฿32,747

Chiang MaiLondon

CNX - LHR

CNXLHR

Chiang Mai

Wed 29/7

11:50-17:45

2 stops35h 55m

London Heathrow

Fri 28/8

14:45-19:10

2 stops22h 25m

฿32,747

Chiang MaiLondon

CNX - LHR

CNXLHR

Chiang Mai

Thu 6/8

23:05-17:40

1 stop24h 35m

London Heathrow

Thu 13/8

20:45-13:45

2 stops35h 00m

฿33,843

Chiang MaiLondon

CNX - LHR

CNXLHR

Chiang Mai

Tue 28/7

00:30-18:40

1 stop24h 10m

London Heathrow

Wed 26/8

21:20-09:15

3 stops29h 55m

฿36,998

Chiang MaiLondon

CNX - LHR

CNXLHR

Chiang Mai

Tue 28/7

00:30-18:40

1 stop24h 10m

London Heathrow

Mon 24/8

21:20-09:15

3 stops29h 55m

฿36,998

Chiang MaiLondon

CNX - LHR

CNXLHR

Chiang Mai

Mon 27/7

14:55-18:40

1 stop33h 45m

London Heathrow

Tue 18/8

21:20-23:20

1 stop20h 00m

฿37,098

Chiang MaiLondon

CNX - LHR

CNXLHR

Chiang Mai

Wed 22/7

16:10-18:40

2 stops32h 30m

London Heathrow

Fri 21/8

21:20-09:15

3 stops29h 55m

฿37,928
Cheapest one-way

Chiang MaiLondon

CNX - LHR

CNXLHR

Chiang Mai

Thu 10/9

11:55-15:05

2 stops33h 10m

฿12,820

Flights are sorted by cheapest return flights first.

Deals found on 9/7

Showing 1-10 of 14 resultsSorted by cheapest first
1
2

Best time to book a flight from Chiang Mai to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Chiang Mai with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Chiang Mai to London Heathrow Airport

What’s the top stopover airport for flights from Chiang Mai to London Heathrow Airport?

Share of one-stop return flights from Chiang Mai to London Heathrow Airport chosen by Cheapflights users in the past 12 months, using the same stopover each way.

Bangkok (BKK) – chosen by Cheapflights users on 44% of one-stop itineraries from Chiang Mai to London Heathrow Airport on Cheapflights.

What’s the cheapest stopover airport for flights from Chiang Mai to London Heathrow Airport?

Average return fare for one-stop flights from Chiang Mai to London Heathrow Airport, chosen by Cheapflights users in the past 12 months, with the same stopover each way.

Kuala Lumpur (KUL) is the most affordable one-stop option, with an average return flight price of ฿26,168.

What’s the fastest stopover option from Chiang Mai to London Heathrow Airport?

Shortest average travel time for one-stop one-way flights from Chiang Mai to London Heathrow Airport, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by stopover airport.

Flights via Bangkok (BKK) have the shortest average one-way travel time for one-stop routes: 15h 55m.

Which airport typically offers the quickest stopover for flights from Chiang Mai to London Heathrow Airport?

Average stopover duration for one-stop one-way flights from Chiang Mai to London Heathrow Airport, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Abu Dhabi (AUH) offer the fastest connection on this route, with an average stopover time of 1h 23m.

Reviews of airlines servicing Heathrow

Get insights into the airlines that provide service to Heathrow. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Heathrow. Reviews last updated 12 July 2026.
Read reviews from past customers who have flown with เอทิฮัดแอร์เวย์ from Chiang Mai to London Heathrow Airport. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
เอทิฮัดแอร์เวย์
7.3
Good
1,475 reviews
Check prices

Crew

7.8

Entertainment

7.2

Overall

7.3

Comfort

7.3

Food

7.2

Boarding

7.6

Reviews

1 / 20
2.0
Mediocre

Abraham,May 2026

TLV - AUH

Huge delay no explanation, made me miss the connection. Terrible experience
เอทิฮัดแอร์เวย์
7.3
Good
1,475 reviews
เอทิฮัดแอร์เวย์
7.3
Good
1,475 reviews
Check prices

Crew

7.8

Entertainment

7.2

Overall

7.3

Comfort

7.3

Food

7.2

Boarding

7.6

Reviews

1 / 20
2.0
Mediocre

Abraham,May 2026

TLV - AUH

Huge delay no explanation, made me miss the connection. Terrible experience

Related info for your journey

Find useful and relevant information for your journey from Chiang Mai to Heathrow. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Chiang Mai to London Heathrow?

    For a flight from Chiang Mai to London Heathrow, you will be flying from Chiang Mai. Chiang Mai (CNX) is just 3.1 km from the centre of the city. Chiang Mai is the only Chiang Mai airport and it handles 0 outbound flights to London Heathrow per day. 1 airline has flights to London Heathrow from Chiang Mai on a regular basis.

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

    Airlines like Air China fly from Chiang Mai to London Heathrow Airport in about 24h 35m. The time it takes to get you to your destination can typically vary by up to . The distance from Chiang Mai to London Heathrow Airport is about 9009 km.

  • What is the cheapest airline to fly from Chiang Mai to London Heathrow Airport round-trip?

    Currently priced at ฿23,999, เอทิฮัดแอร์เวย์ will fly you from Chiang Mai to London Heathrow Airport and back. In addition to เอทิฮัดแอร์เวย์, many other airlines offer competitively priced options for your trip.

  • Can I find deals for flights from Chiang Mai to Heathrow that include hotel bookings?

    Yes. In addition to deals on Chiang Mai to Heathrow flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Chiang Mai to Heathrow?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Chiang Mai to Heathrow.

  • Can I find deals for business class flights from Chiang Mai to Heathrow?

    Yes. Cheapflights offers flight deals from Chiang Mai to Heathrow by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Travelling to a place near London Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
Brentford

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Top airline flying from Chiang Mai to Heathrow

Discover the top airline that operate flights from Chiang Mai to Heathrow. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 17,341 searches. Data last updated 12 July 2026.
AirlineCheapestAverageFlexibilityOn-time
เอทิฮัดแอร์เวย์Cheapest฿23,999Average฿34,264FlexibilityNo cancel feeOn-time75%
Search เอทิฮัดแอร์เวย์ flights

Fly with Cheapflights

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How does Cheapflights help users find flights from Chiang Mai to Heathrow?

Cheapflights helps you search for flights from Chiang Mai to Heathrow via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from Chiang Mai to Heathrow?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Chiang Mai to Heathrow for you. Better yet — we are completely free to use.

Can Cheapflights find flights from Chiang Mai to Heathrow with no change fees?

Need flexible booking options for your flight to Heathrow from Chiang Mai? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from Chiang Mai to Heathrow become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Heathrow from Chiang Mai today and book when prices fit your budget.

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