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Cheap flights from Chiang Mai to London Heathrow Airport from ฿7,927

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 5/2. Fares are subject to change and may not be available on all flights or dates of travel.
CNX — LHR
8 Feb — 15 Feb1
1 adult
1 adult, Economy, 0 bags

Cheap 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 9 January 2026.

Round-trip from

฿22,555

One-way from

฿7,927

Popular in

August

Cheapest in

October

Average price

฿35,357
China Eastern
  • China Eastern
  • 22/1-29/1
  • 3 total stops
  • 66h 25m total
  • Chiang Mai to London
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China Eastern
  • China Eastern
  • 5/2
  • 1 total stop
  • 32h 55m total
  • Chiang Mai to London
Search Deals
Highest demand for flights based on searches. 8% potential increase in price (฿85,153 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (฿29,475 potential savings vs. average return price).
Search Deals
Average for round-trip flights in January 2026
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Find 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 9 January 2026.

Thu 22/116:25CNX - LHR
2 stops32h 05mChina Eastern
Thu 29/121:00LHR - CNX
1 stop34h 20mChina Eastern
Deal found 6/1฿22,555
Thu 22/123:05CNX - LHR
1 stop25h 45mMultiple Airlines
Thu 29/121:00LHR - CNX
1 stop34h 20mMultiple Airlines
Deal found 6/1฿22,743
Sun 8/216:25CNX - LHR
2 stops32h 05mChina Eastern
Sun 15/221:00LHR - CNX
1 stop18h 20mChina Eastern
Deal found 9/1฿24,348
Tue 28/414:40CNX - LHR
1 stop31h 55mMultiple Airlines
Tue 2/621:20LHR - CNX
1 stop34h 05mMultiple Airlines
Deal found 8/1฿25,354
Tue 3/308:50CNX - LHR
1 stop28h 50mเอทิฮัดแอร์เวย์
Fri 13/313:55LHR - CNX
1 stop33h 15mเอทิฮัดแอร์เวย์
Deal found 9/1฿26,141
Sat 31/108:50CNX - LHR
1 stop16h 20mเอทิฮัดแอร์เวย์
Wed 18/208:50LHR - CNX
1 stop14h 20mเอทิฮัดแอร์เวย์
Deal found 7/1฿27,053
Tue 3/314:50CNX - LHR
1 stop31h 35mMalaysia Airlines
Fri 13/321:25LHR - CNX
1 stop31h 00mMalaysia Airlines
Deal found 8/1฿27,399

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 9 January 2026.
Use the filters below to find and compare flights from Chiang Mai to London Heathrow Airport that are best for you.

Fly from

Chiang Mai

Fly to

Heathrow

Route

Depart

Return

Price

Chiang MaiLondon

CNX - LHR

CNXLHR

Chiang Mai

Thu 22/1

16:25-17:30

2 stops32h 05m

London Heathrow

Thu 29/1

21:00-09:05

2 stops29h 05m

฿22,586

Chiang MaiLondon

CNX - LHR

CNXLHR

Chiang Mai

Sun 8/2

16:25-17:30

2 stops32h 05m

London Heathrow

Sun 15/2

21:00-22:20

1 stop18h 20m

฿24,348

Chiang MaiLondon

CNX - LHR

CNXLHR

Chiang Mai

Tue 28/4

14:40-16:35

1 stop31h 55m

London Heathrow

Tue 2/6

21:20-13:25

1 stop34h 05m

฿25,354

Chiang MaiLondon

CNX - LHR

CNXLHR

Chiang Mai

Sat 31/1

08:50-18:10

1 stop16h 20m

London Heathrow

Wed 18/2

08:50-06:10

1 stop14h 20m

฿27,053

Chiang MaiLondon

CNX - LHR

CNXLHR

Chiang Mai

Thu 22/1

23:05-15:55

1 stop23h 50m

London Heathrow

Mon 26/1

20:25-21:50

1 stop18h 25m

฿27,808

Chiang MaiLondon

CNX - LHR

CNXLHR

Chiang Mai

Sat 28/3

14:50-15:35

1 stop31h 45m

London Heathrow

Sat 18/4

11:00-11:40

1 stop18h 40m

฿27,839

Chiang MaiLondon

CNX - LHR

CNXLHR

Chiang Mai

Mon 2/2

15:35-17:30

1 stop32h 55m

London Heathrow

Fri 13/2

06:40-16:45

2 stops27h 05m

฿27,871

Chiang MaiLondon

CNX - LHR

CNXLHR

Chiang Mai

Thu 7/5

14:40-16:35

1 stop31h 55m

London Heathrow

Thu 21/5

11:00-11:40

1 stop18h 40m

฿27,934

Chiang MaiLondon

CNX - LHR

CNXLHR

Chiang Mai

Wed 4/2

15:35-17:30

1 stop32h 55m

฿8,021

Chiang MaiLondon

CNX - LHR

CNXLHR

Chiang Mai

Thu 5/2

15:35-17:30

1 stop32h 55m

฿8,021

Flights are sorted by cheapest return flights first.

Deals found on 8/1

Showing 1-10 of 19 results
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 50% 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 ฿24,785.

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: 16h 03m.

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 9 January 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
1,361 reviews
Check prices

Comfort

7.3

Food

7.2

Boarding

7.6

Overall

7.3

Entertainment

7.2

Crew

7.8

Reviews

1 / 20
2.0
Mediocre

Anonymous,Nov 2025

AMD - AUH

Etihad charged me for 2 check in bags. On Kayak search results price was showing 2 check in bags were included. Kayak need to reimburse me for these additional charges and metal agony and distress. Thanks.
เอทิฮัดแอร์เวย์
7.3
Good
1,361 reviews
เอทิฮัดแอร์เวย์
7.3
Good
1,361 reviews
Check prices

Comfort

7.3

Food

7.2

Boarding

7.6

Overall

7.3

Entertainment

7.2

Crew

7.8

Reviews

1 / 20
2.0
Mediocre

Anonymous,Nov 2025

AMD - AUH

Etihad charged me for 2 check in bags. On Kayak search results price was showing 2 check in bags were included. Kayak need to reimburse me for these additional charges and metal agony and distress. Thanks.

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 China Eastern and เอทิฮัดแอร์เวย์ fly from Chiang Mai to London Heathrow Airport in about 16h 20m. The time it takes to get you to your destination can typically vary by up to 15h 45m. 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 ฿22,730, 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
Waterlooville

Browse thousands of different options on Cheapflights for your next trip

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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 9 January 2026.
AirlineCheapestAverageFlexibilityOn-time
เอทิฮัดแอร์เวย์Cheapest฿22,730Average฿30,563FlexibilityNo 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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