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Cheap flights from Chiang Mai to London Heathrow Airport from ฿9,375

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 29/10. Fares are subject to change and may not be available on all flights or dates of travel.
CNX — LHR
12 Sep — 19 Sep1
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 13 August 2026.

Mon 26/1009:10 -
1 stop28h 30m
Mon 9/1121:00 -
1 stop34h 20m
Deal found 13/8฿23,919
Tue 27/1009:10 -
1 stop16h 00m
Mon 9/1121:00 -
1 stop34h 20m
Deal found 13/8฿23,985
Tue 27/1009:10 -
1 stop16h 00m
Wed 11/1121:00 -
1 stop34h 20m
Deal found 12/8฿24,184
Thu 29/1009:10 -
1 stop28h 30m
Thu 12/1121:00 -
2 stops29h 05m
Deal found 13/8฿24,283
Tue 27/1009:10 -
1 stop28h 30m
Sat 7/1121:00 -
1 stop34h 20m
Deal found 11/8฿25,277
Mon 26/1009:10 -
1 stop16h 00m
Sun 8/1121:00 -
1 stop34h 20m
Deal found 11/8฿25,343

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 13 August 2026.

Round-trip from

฿23,919

One-way from

฿9,442
China Eastern
  • China Eastern
  • 26/10-9/11
  • 2 total stops
  • 62h 50m total
  • Chiang Mai to London
Search Deals
เอทิฮัดแอร์เวย์
  • เอทิฮัดแอร์เวย์
  • 27/10
  • 1 total stop
  • 36h 20m 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 13 August 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 Chiang Mai - LHR London Heathrow

CNXLHR

Chiang Mai

Sat 26/9

17:45-17:45

2 stops30h 00m

London Heathrow

Sat 3/10

14:45-19:10

2 stops22h 25m

฿29,219

Chiang MaiLondon

CNX Chiang Mai - LHR London Heathrow

CNXLHR

Chiang Mai

Mon 28/9

10:10-07:00

2 stops26h 50m

London Heathrow

Fri 2/10

22:10-17:50

1 stop37h 40m

฿30,710

Chiang MaiLondon

CNX Chiang Mai - LHR London Heathrow

CNXLHR

Chiang Mai

Fri 15/1

12:25-15:25

1 stop34h 00m

London Heathrow

Sat 30/1

10:25-11:25

1 stop18h 00m

฿30,776

Chiang MaiLondon

CNX Chiang Mai - LHR London Heathrow

CNXLHR

Chiang Mai

Tue 29/9

21:05-07:15

1 stop16h 10m

London Heathrow

Tue 13/10

22:00-22:00

2 stops42h 00m

฿33,857

Chiang MaiLondon

CNX Chiang Mai - LHR London Heathrow

CNXLHR

Chiang Mai

Fri 11/9

11:55-15:05

2 stops33h 10m

London Heathrow

Mon 14/9

09:30-11:15

2 stops19h 45m

฿35,315

Chiang MaiLondon

CNX Chiang Mai - LHR London Heathrow

CNXLHR

Chiang Mai

Tue 25/8

23:05-17:40

1 stop24h 35m

London Heathrow

Mon 14/9

20:25-21:50

1 stop19h 25m

฿37,137

Chiang MaiLondon

CNX Chiang Mai - LHR London Heathrow

CNXLHR

Chiang Mai

Tue 1/9

23:05-17:40

1 stop24h 35m

London Heathrow

Wed 30/9

21:20-09:15

2 stops29h 55m

฿37,302

Chiang MaiLondon

CNX Chiang Mai - LHR London Heathrow

CNXLHR

Chiang Mai

Tue 29/9

14:55-18:40

1 stop33h 45m

London Heathrow

Tue 13/10

21:20-13:25

1 stop34h 05m

฿38,627

Chiang MaiLondon

CNX Chiang Mai - LHR London Heathrow

CNXLHR

Chiang Mai

Fri 11/9

18:50-19:20

1 stop30h 30m

London Heathrow

Mon 14/9

22:10-17:50

1 stop37h 40m

฿39,290

Chiang MaiLondon

CNX Chiang Mai - LHR London Heathrow

CNXLHR

Chiang Mai

Mon 28/9

12:35-16:35

1 stop34h 00m

London Heathrow

Fri 2/10

11:00-13:40

1 stop20h 40m

฿39,588

Flights are sorted by cheapest return flights first.

Deals found on 13/8

Showing 1-10 of 23 resultsSorted by cheapest first
1
2
3

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 67% 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.

Beijing (PEK) is the most affordable one-stop option, with an average return flight price of ฿31,542.

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 Bangkok (BKK) offer the fastest connection on this route, with an average stopover time of 1h 43m.

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 13 August 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
1,504 reviews
Check prices

Overall

7.3

Boarding

7.5

Food

7.1

Comfort

7.3

Crew

7.8

Entertainment

7.2

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
1,504 reviews
เอทิฮัดแอร์เวย์
7.3
Good
1,504 reviews
Check prices

Overall

7.3

Boarding

7.5

Food

7.1

Comfort

7.3

Crew

7.8

Entertainment

7.2

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 Malaysia Airlines and เอทิฮัดแอร์เวย์ fly from Chiang Mai to London Heathrow Airport in about 25h 05m. The time it takes to get you to your destination can typically vary by up to 8h 55m. The distance from Chiang Mai to London Heathrow Airport is about 9009 km. Both multi-stop and direct flights can be found to your destination and back.

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

    Currently priced at ฿23,938, 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 13 August 2026.
AirlineCheapestAverageFlexibilityOn-time
เอทิฮัดแอร์เวย์Cheapest฿23,938Average฿34,857FlexibilityNo 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?

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

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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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