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Cheap flights from Chiang Mai to London Heathrow Airport from ฿8,213

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 7/5. Fares are subject to change and may not be available on all flights or dates of travel.
CNX — LHR
22 Feb — 1 Mar1
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 23 January 2026.

Mon 9/316:25
CNX
-
LHR
2 stops32h 05m
China Eastern
Mon 16/321:00
LHR
-
CNX
2 stops29h 05m
China Eastern
Deal found 23/1฿21,434
Mon 9/323:05
CNX
-
LHR
1 stop23h 50m
Multiple Airlines
Mon 16/321:00
LHR
-
CNX
1 stop34h 20m
Multiple Airlines
Deal found 23/1฿22,648
Sun 29/316:20
CNX
-
LHR
2 stops32h 20m
China Eastern
Tue 21/421:20
LHR
-
CNX
2 stops29h 55m
China Eastern
Deal found 22/1฿23,643
Thu 7/514:40
CNX
-
LHR
1 stop31h 55m
Malaysia Airlines
Thu 21/511:00
LHR
-
CNX
1 stop18h 40m
Malaysia Airlines
Deal found 23/1฿23,892
Sat 28/314:50
CNX
-
LHR
1 stop31h 45m
Malaysia Airlines
Sat 18/421:35
LHR
-
CNX
1 stop32h 05m
Malaysia Airlines
Deal found 23/1฿24,016
Thu 2/423:05
CNX
-
LHR
1 stop24h 35m
Air China
Sun 19/422:40
LHR
-
CNX
1 stop17h 10m
Air China
Deal found 23/1฿25,167

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 23 January 2026.

Round-trip from

฿21,434

One-way from

฿8,213

Popular in

August

Cheapest in

October

Average price

฿34,967
China Eastern
  • China Eastern
  • 9/3-16/3
  • 4 total stops
  • 61h 10m total
  • Chiang Mai to London
Search Deals
7/5
  • 7/5
  • 3 total stops
  • 42h 55m total
  • Chiang Mai to London
Search Deals
Highest demand for flights based on searches. 8% potential increase in price (฿84,642 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (฿28,969 potential savings vs. average return price).
Search Deals
Average for round-trip flights in January 2026
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 23 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

Mon 9/3

16:25-17:30

2 stops32h 05m

London Heathrow

Mon 16/3

21:00-15:25

3 stops59h 25m

฿22,523

Chiang MaiLondon

CNX - LHR

CNXLHR

Chiang Mai

Sun 29/3

16:20-18:40

2 stops32h 20m

London Heathrow

Tue 21/4

21:20-09:15

2 stops29h 55m

฿23,643

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

฿23,954

Chiang MaiLondon

CNX - LHR

CNXLHR

Chiang Mai

Sat 28/3

14:50-15:35

1 stop31h 45m

London Heathrow

Sat 18/4

21:35-11:40

1 stop32h 05m

฿24,016

Chiang MaiLondon

CNX - LHR

CNXLHR

Chiang Mai

Wed 10/6

12:35-05:55

1 stop23h 20m

London Heathrow

Sat 20/6

21:35-11:40

1 stop32h 05m

฿26,630

Chiang MaiLondon

CNX - LHR

CNXLHR

Chiang Mai

Thu 7/5

06:35-19:30

3 stops42h 55m

฿8,213

Chiang MaiLondon

CNX - LHR

CNXLHR

Chiang Mai

Wed 28/1

19:40-17:35

3 stops52h 55m

฿10,453

Chiang MaiLondon

CNX - LHR

CNXLHR

Chiang Mai

Thu 29/1

10:35-17:35

3 stops38h 00m

฿10,670

Chiang MaiLondon

CNX - LHR

CNXLHR

Chiang Mai

Fri 5/6

07:10-16:05

3 stops38h 55m

฿10,888

Chiang MaiLondon

CNX - LHR

CNXLHR

Chiang Mai

Mon 1/6

08:10-10:15

3 stops32h 05m

฿11,635

Flights are sorted by cheapest return flights first.

Deals found on 23/1

Showing 1-10 of 14 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 ฿24,511.

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 23 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
1,374 reviews
Check prices

Entertainment

7.2

Crew

7.8

Boarding

7.6

Comfort

7.3

Food

7.2

Overall

7.3

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jan 2026

AMD - AUH

My experience with etihad was extremely worst. I was going to fly on december 25 2025, but as I had severe surgery few days back before my travel date so I wasn’t been able to get on my flight. I even contact customer care for extension date request or money back so that I could book another flight by providing doctors certificate mentioning my condition, but nobody helped me in either of the request. I didn’t expect this type of service from etihad at all.
เอทิฮัดแอร์เวย์
7.3
Good
1,374 reviews
เอทิฮัดแอร์เวย์
7.3
Good
1,374 reviews
Check prices

Entertainment

7.2

Crew

7.8

Boarding

7.6

Comfort

7.3

Food

7.2

Overall

7.3

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jan 2026

AMD - AUH

My experience with etihad was extremely worst. I was going to fly on december 25 2025, but as I had severe surgery few days back before my travel date so I wasn’t been able to get on my flight. I even contact customer care for extension date request or money back so that I could book another flight by providing doctors certificate mentioning my condition, but nobody helped me in either of the request. I didn’t expect this type of service from etihad at all.

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 Malaysia Airlines fly from Chiang Mai to London Heathrow Airport in about 31h 55m. The time it takes to get you to your destination can typically vary by up to 10m. 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 ฿22,479, 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

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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 23 January 2026.
AirlineCheapestAverageFlexibilityOn-time
เอทิฮัดแอร์เวย์Cheapest฿22,479Average฿30,225FlexibilityNo 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?

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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