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

Airlines like China Eastern fly from Chiang Mai to London Heathrow Airport in about 32h 55m. 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.

฿6,323+ 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.

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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 13 November 2026.

Thu 12/1109:10 -

1 stop36h 20m

Wed 25/1121:00 -

1 stop34h 20m

Deal found 11/11฿22,114

Fri 13/1109:10 -

1 stop15h 50m

Sun 29/1120:55 -

1 stop26h 30m

Deal found 8/11฿23,906

Tue 17/1109:10 -

1 stop15h 50m

Sat 28/1121:00 -

2 stops28h 35m

Deal found 12/11฿24,684

Tue 17/1109:10 -

1 stop15h 50m

Wed 2/1217:45 -

1 stop21h 05m

Deal found 12/11฿25,259

Fri 13/1109:10 -

1 stop15h 50m

Sun 29/1121:30 -

2 stops29h 20m

Deal found 8/11฿26,172

Mon 7/1209:10 -

1 stop28h 30m

Tue 5/112:30 -

3 stops37h 05m

Deal found 13/11฿26,442

Mon 7/1215:35 -

1 stop32h 55m

Tue 5/112:30 -

3 stops37h 05m

Deal found 13/11฿26,578

Tue 17/1109:10 -

1 stop15h 50m

Mon 30/1121:00 -

1 stop34h 20m

Deal found 12/11฿26,612

Find flight deals from Chiang Mai to Heathrow

Round-trip from	฿26,544
One-way from	฿6,323

China Eastern
7/12-5/1
3 total stops
65h 35m total
Chiang Mai to London

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เอทิฮัดแอร์เวย์
22/11-31/12
1 total stop
36h 20m total
Chiang Mai to London

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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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Route

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Price

Cheapest return flight

Chiang MaiLondon

CNX Chiang Mai - LHR London Heathrow

CNXLHR

Chiang Mai

Sun 22/11

09:10-14:30

1 stop36h 20m

London Heathrow

Wed 31/12

00:00-06:00

Nonstop0h 00m

฿6,323

Fastest return journey

Chiang MaiLondon

CNX Chiang Mai - LHR London Heathrow

CNXLHR

Chiang Mai

Wed 2/12

09:10-18:10

1 stop16h 00m

London Heathrow

Wed 31/12

00:00-06:00

Nonstop0h 00m

฿9,806

Chiang MaiLondon

CNX Chiang Mai - LHR London Heathrow

CNXLHR

Chiang Mai

Tue 1/12

16:25-17:30

2 stops32h 05m

London Heathrow

Wed 31/12

00:00-06:00

Nonstop0h 00m

฿9,874

Chiang MaiLondon

CNX Chiang Mai - LHR London Heathrow

CNXLHR

Chiang Mai

Tue 24/11

15:35-17:30

1 stop32h 55m

London Heathrow

Wed 31/12

00:00-06:00

Nonstop0h 00m

฿10,077

Chiang MaiLondon

CNX Chiang Mai - LHR London Heathrow

CNXLHR

Chiang Mai

Mon 1/2

23:05-17:50

1 stop25h 45m

London Heathrow

Wed 31/12

00:00-06:00

Nonstop0h 00m

฿11,226

Chiang MaiLondon

CNX Chiang Mai - LHR London Heathrow

CNXLHR

Chiang Mai

Fri 26/2

13:20-19:20

2 stops37h 00m

London Heathrow

Wed 31/12

00:00-06:00

Nonstop0h 00m

฿11,632

Chiang MaiLondon

CNX Chiang Mai - LHR London Heathrow

CNXLHR

Chiang Mai

Mon 15/3

10:10-18:55

2 stops39h 45m

London Heathrow

Wed 31/12

00:00-06:00

Nonstop0h 00m

฿12,038

Chiang MaiLondon

CNX Chiang Mai - LHR London Heathrow

CNXLHR

Chiang Mai

Thu 25/2

15:35-17:30

1 stop32h 55m

London Heathrow

Wed 31/12

00:00-06:00

Nonstop0h 00m

฿12,072

Chiang MaiLondon

CNX Chiang Mai - LHR London Heathrow

CNXLHR

Chiang Mai

Mon 15/3

13:00-06:25

3 stops24h 25m

London Heathrow

Wed 31/12

00:00-06:00

Nonstop0h 00m

฿12,444

Chiang MaiLondon

CNX Chiang Mai - LHR London Heathrow

CNXLHR

Chiang Mai

Sun 27/12

13:20-19:10

2 stops36h 50m

London Heathrow

Wed 31/12

00:00-06:00

Nonstop0h 00m

฿13,018

Flights are sorted by cheapest return flights first.

Deals found on 9/11

Showing 1-10 of 16 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 China Eastern fly from Chiang Mai to London Heathrow Airport in about 32h 55m. 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 ฿6,323

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 22/11. 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 13 November 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 13 November 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 13 November 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 13 November 2026.

Last-minute flights from Chiang Mai to HeathrowDiscover last-minute flight deals from Chiang Mai to Heathrow. Data last updated 13 November 2026 and is based on user searches.

Discover last-minute flight deals from Chiang Mai to Heathrow. Data last updated 13 November 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 13 November 2026.

Search for one-way flight options from Chiang Mai to Heathrow. Find affordable one-way fares based on user searches. Data last updated 13 November 2026.

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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?

Travelling to a place near London Heathrow Airport?

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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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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 13 November 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 13 November 2026.

Last-minute flights from Chiang Mai to Heathrow
Discover last-minute flight deals from Chiang Mai to Heathrow. Data last updated 13 November 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 13 November 2026.