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

Airlines like เอทิฮัดแอร์เวย์ fly from Chiang Mai to London Heathrow Airport in about 36h 20m. 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.

In terms of precipitation, rainfall in London Heathrow Airport ranges from 40.0 - 70.0 inches per month. January is typically the wettest month, when rainfall can reach 70.0 mm. July is typically the driest time to visit London Heathrow Airport when rainfall is around 40.0 mm.

If weather is an important factor for your trip to London Heathrow Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 4.0 C).

What is the cheapest time of day to fly from CNX to LHR?

When flying from Chiang Mai to London Heathrow Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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. 0 airlines have flights to London Heathrow from Chiang Mai on a regular basis.

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.

฿9,800+ Cheap Flights from Chiang Mai to London Heathrow Airport

Cheap flight deals from Chiang Mai to Heathrow

Enter your travel dates to find the best prices.

Cheapest

Best

Last-minute

One-way

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 14 October 2026.

Thu 5/1109:10 -

1 stop28h 30m

Wed 11/1120:25 -

1 stop18h 25m

Deal found 12/10฿22,385

Sun 8/1109:10 -

2 stops32h 20m

Sun 15/1106:20 -

2 stops32h 30m

Deal found 11/10฿23,560

Thu 12/1109:10 -

1 stop36h 20m

Mon 16/1119:20 -

1 stop28h 05m

Deal found 12/10฿25,506

Wed 11/1109:10 -

1 stop16h 00m

Sun 15/1119:20 -

1 stop28h 05m

Deal found 9/10฿25,540

Tue 24/1118:10 -

1 stop28h 45m

Tue 1/1220:25 -

1 stop18h 25m

Deal found 10/10฿26,815

Sun 1/1108:55 -

3 stops31h 40m

Tue 1/1221:00 -

1 stop34h 20m

Deal found 9/10฿26,849

Fri 27/1122:35 -

1 stop27h 25m

Fri 4/1217:45 -

1 stop21h 05m

Deal found 13/10฿27,352

Tue 24/1118:10 -

1 stop28h 45m

Tue 1/1212:30 -

3 stops37h 05m

Deal found 10/10฿27,386

One-way flights from Chiang Mai to Heathrow
Search for one-way flight options from Chiang Mai to Heathrow. Find affordable one-way fares based on user searches. Data last updated 14 October 2026.

Thu 17/1220:55 -

1 stop24h 35m

Wed 31/1200:00 -

Nonstop0h 00m

Deal found 12/10฿9,800

Sat 5/1209:10 -

1 stop16h 00m

Wed 31/1200:00 -

Nonstop0h 00m

Deal found 11/10฿9,833

Wed 18/1109:10 -

1 stop16h 00m

Wed 31/1200:00 -

Nonstop0h 00m

Deal found 13/10฿9,900

Thu 18/320:55 -

1 stop22h 10m

Wed 31/1200:00 -

Nonstop0h 00m

Deal found 13/10฿9,934

Fri 4/1209:10 -

1 stop33h 55m

Wed 31/1200:00 -

Nonstop0h 00m

Deal found 10/10฿10,001

Sun 20/1220:55 -

1 stop24h 35m

Wed 31/1200:00 -

Nonstop0h 00m

Deal found 10/10฿10,035

Mon 16/1109:10 -

1 stop16h 00m

Wed 31/1200:00 -

Nonstop0h 00m

Deal found 13/10฿10,437

Sun 21/320:55 -

1 stop28h 15m

Wed 31/1200:00 -

Nonstop0h 00m

Deal found 13/10฿10,471

Thu 17/1206:30 -

3 stops42h 15m

Wed 31/1200:00 -

Nonstop0h 00m

Deal found 13/10฿10,505

Thu 22/1022:20 -

2 stops25h 25m

Wed 31/1200:00 -

Nonstop0h 00m

Deal found 10/10฿10,706

Find flight deals from Chiang Mai to Heathrow

Round-trip from	฿22,385
One-way from	฿9,800

Air China
5/11-11/11
2 total stops
46h 55m total
Chiang Mai to London

Search Deals

เอทิฮัดแอร์เวย์
17/12-31/12
1 total stop
24h 35m total
Chiang Mai to London

Search Deals

Cheapflights Fare Finder

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

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Fastest return journey

Chiang MaiLondon

CNX Chiang Mai - LHR London Heathrow

CNXLHR

Chiang Mai

Sun 20/12

20:55-14:30

1 stop24h 35m

London Heathrow

Wed 31/12

00:00-06:00

Nonstop0h 00m

฿10,035

Chiang MaiLondon

CNX Chiang Mai - LHR London Heathrow

CNXLHR

Chiang Mai

Sat 20/3

20:55-14:30

1 stop24h 35m

London Heathrow

Wed 31/12

00:00-06:00

Nonstop0h 00m

฿10,437

Chiang MaiLondon

CNX Chiang Mai - LHR London Heathrow

CNXLHR

Chiang Mai

Wed 27/1

22:30-18:55

2 stops51h 25m

London Heathrow

Wed 31/12

00:00-06:00

Nonstop0h 00m

฿11,981

Chiang MaiLondon

CNX Chiang Mai - LHR London Heathrow

CNXLHR

Chiang Mai

Mon 25/1

08:30-11:05

2 stops33h 35m

London Heathrow

Wed 31/12

00:00-06:00

Nonstop0h 00m

฿12,116

Chiang MaiLondon

CNX Chiang Mai - LHR London Heathrow

CNXLHR

Chiang Mai

Tue 26/1

22:35-20:30

2 stops28h 55m

London Heathrow

Wed 31/12

00:00-06:00

Nonstop0h 00m

฿12,518

Chiang MaiLondon

CNX Chiang Mai - LHR London Heathrow

CNXLHR

Chiang Mai

Sun 20/12

19:45-11:05

2 stops46h 20m

London Heathrow

Wed 31/12

00:00-06:00

Nonstop0h 00m

฿12,552

Chiang MaiLondon

CNX Chiang Mai - LHR London Heathrow

CNXLHR

Chiang Mai

Fri 15/1

20:55-14:30

1 stop24h 35m

London Heathrow

Wed 31/12

00:00-06:00

Nonstop0h 00m

฿15,102

Chiang MaiLondon

CNX Chiang Mai - LHR London Heathrow

CNXLHR

Chiang Mai

Thu 14/1

20:55-18:10

1 stop28h 15m

London Heathrow

Wed 31/12

00:00-06:00

Nonstop0h 00m

฿15,102

Chiang MaiLondon

CNX Chiang Mai - LHR London Heathrow

CNXLHR

Chiang Mai

Fri 4/12

22:35-17:00

3 stops25h 25m

London Heathrow

Wed 31/12

00:00-06:00

Nonstop0h 00m

฿15,472

Chiang MaiLondon

CNX Chiang Mai - LHR London Heathrow

CNXLHR

Chiang Mai

Thu 22/10

14:55-18:40

1 stop33h 45m

London Heathrow

Wed 31/12

00:00-06:00

Nonstop0h 00m

฿17,418

Flights are sorted by cheapest return flights first.

Deals found on 10/10

Showing 1-10 of 18 resultsSorted by cheapest first

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.

CNX-LHR

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.

Related info for your journey

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. 0 airlines have 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 เอทิฮัดแอร์เวย์ fly from Chiang Mai to London Heathrow Airport in about 36h 20m. 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.
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.

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

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Cheap flights from Chiang Mai to London Heathrow Airport from ฿9,800

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 17/12. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Chiang Mai to Heathrow

Cheapest flights from Chiang Mai to HeathrowExplore 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 14 October 2026.

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 14 October 2026.

Best flights from Chiang Mai to HeathrowDiscover carefully curated flight deals from Chiang Mai to Heathrow that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 14 October 2026.

Discover carefully curated flight deals from Chiang Mai to Heathrow that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 14 October 2026.

Last-minute flights from Chiang Mai to HeathrowDiscover last-minute flight deals from Chiang Mai to Heathrow. Data last updated 14 October 2026 and is based on user searches.

Discover last-minute flight deals from Chiang Mai to Heathrow. Data last updated 14 October 2026 and is based on user searches.

One-way flights from Chiang Mai to HeathrowSearch for one-way flight options from Chiang Mai to Heathrow. Find affordable one-way fares based on user searches. Data last updated 14 October 2026.

Search for one-way flight options from Chiang Mai to Heathrow. Find affordable one-way fares based on user searches. Data last updated 14 October 2026.

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Best time to book a flight from Chiang Mai to Heathrow

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Related info for your journey

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

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

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

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

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

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Alternative routes for Chiang Mai to Heathrow

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Complete your trip

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Direct flights to England

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Other flights to Heathrow

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Chiang Mai and Heathrow flights

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

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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 14 October 2026.

Best flights from Chiang Mai to Heathrow
Discover carefully curated flight deals from Chiang Mai to Heathrow that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 14 October 2026.

Last-minute flights from Chiang Mai to Heathrow
Discover last-minute flight deals from Chiang Mai to Heathrow. Data last updated 14 October 2026 and is based on user searches.

One-way flights from Chiang Mai to Heathrow
Search for one-way flight options from Chiang Mai to Heathrow. Find affordable one-way fares based on user searches. Data last updated 14 October 2026.