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

Air China and Etihad Airways can get you from Chiang Mai to London Heathrow Airport in just under 24h 35m. Your travel time can differ by up to 3h 35m. The distance from Chiang Mai to London Heathrow Airport is about 5598 mi. Both multi-stop and direct flights can be found to your destination and back.

What are the cheapest airlines flying from Chiang Mai to London Heathrow Airport round-trip?

Currently priced at £508, Air China will fly you from Chiang Mai to London Heathrow Airport and back. In addition to Air China, many other airlines offer competitively priced options for your trip. Check Cheapflights for deals on Etihad Airways for as low as £561.

What are the cheapest airlines to fly from Chiang Mai to London Heathrow Airport one-way?

The cheapest airline one-way is Etihad Airways, with whom users have recently found tickets for as low as £110. However, be on the lookout for offers from Thai Airways and Air China, as they are both options that can get you from Chiang Mai to London Heathrow Airport for a low price.

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?

If you book a flight to London Heathrow from Chiang Mai, you will be flying from Chiang Mai, which is the city’s only airport. Chiang Mai (CNX) is located 1.9 mi from the center of Chiang Mai. There are 0 flights from Chiang Mai to London Heathrow per day from 2 different airlines.

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.

£208+ 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 2 September 2026.

Mon 19/1023:05 -

1 stop24h 35m

Mon 2/1120:25 -

1 stop18h 25m

Deal found 28/8£607

Tue 13/1023:05 -

1 stop24h 35m

Tue 20/1021:45 -

2 stops29h 35m

Deal found 29/8£621

Mon 19/1023:05 -

1 stop24h 35m

Mon 2/1121:10 -

2 stops41h 50m

Deal found 28/8£623

Tue 13/1014:35 -

2 stops28h 10m

Tue 20/1021:45 -

2 stops29h 35m

Deal found 29/8£627

Thu 3/1209:10 -

1 stop16h 00m

Sun 17/113:55 -

1 stop33h 10m

Deal found 29/8£628

Tue 29/922:30 -

2 stops26h 30m

Tue 6/1013:15 -

2 stops26h 45m

Deal found 1/9£634

Wed 11/1109:10 -

1 stop33h 55m

Sun 15/1113:55 -

1 stop33h 10m

Deal found 30/8£637

Sat 26/914:35 -

2 stops34h 10m

Sat 10/1016:35 -

3 stops23h 15m

Deal found 31/8£644

Mon 12/1023:05 -

1 stop24h 35m

Mon 19/1022:40 -

1 stop17h 10m

Deal found 28/8£651

Find flight deals from Chiang Mai to Heathrow

Round-trip from	£534
One-way from	£208

China Eastern
10/11-20/11
2 total stops
62h 50m total
Chiang Mai to London

Search Deals

Etihad Airways
21/11
1 total stop
36h 20m 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.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

Chiang MaiLondon

CNX Chiang Mai - LHR London Heathrow

CNXLHR

Chiang Mai

Mon 19/10

23:05-17:40

1 stop24h 35m

London Heathrow

Mon 2/11

20:25-21:50

1 stop18h 25m

£607

Chiang MaiLondon

CNX Chiang Mai - LHR London Heathrow

CNXLHR

Chiang Mai

Tue 13/10

14:35-12:45

2 stops28h 10m

London Heathrow

Tue 20/10

21:45-09:20

2 stops29h 35m

£627

Chiang MaiLondon

CNX Chiang Mai - LHR London Heathrow

CNXLHR

Chiang Mai

Thu 12/11

09:10-14:30

1 stop36h 20m

London Heathrow

Mon 16/11

19:20-06:05

1 stop27h 45m

£635

Chiang MaiLondon

CNX Chiang Mai - LHR London Heathrow

CNXLHR

Chiang Mai

Wed 11/11

09:10-12:05

1 stop33h 55m

London Heathrow

Sun 15/11

13:55-06:05

1 stop33h 10m

£637

Chiang MaiLondon

CNX Chiang Mai - LHR London Heathrow

CNXLHR

Chiang Mai

Mon 12/10

23:05-17:40

1 stop24h 35m

London Heathrow

Mon 19/10

22:40-21:50

1 stop17h 10m

£651

Chiang MaiLondon

CNX Chiang Mai - LHR London Heathrow

CNXLHR

Chiang Mai

Sat 26/9

14:35-18:45

2 stops34h 10m

London Heathrow

Sat 3/10

16:35-20:25

3 stops21h 50m

£662

Chiang MaiLondon

CNX Chiang Mai - LHR London Heathrow

CNXLHR

Chiang Mai

Mon 12/10

14:35-12:45

2 stops28h 10m

London Heathrow

Mon 19/10

21:45-09:20

2 stops29h 35m

£692

Chiang MaiLondon

CNX Chiang Mai - LHR London Heathrow

CNXLHR

Chiang Mai

Mon 12/10

23:05-20:25

1 stop27h 20m

London Heathrow

Mon 19/10

21:45-09:20

2 stops29h 35m

£703

Fastest return journey

Chiang MaiLondon

CNX Chiang Mai - LHR London Heathrow

CNXLHR

Chiang Mai

Thu 3/12

09:10-18:10

1 stop16h 00m

London Heathrow

Sun 17/1

17:40-22:00

2 stops21h 20m

£706

Cheapest one-way

Fastest single journey

Chiang MaiLondon

CNX Chiang Mai - LHR London Heathrow

CNXLHR

Chiang Mai

Tue 15/12

09:10-18:10

1 stop16h 00m

£209

Flights are sorted by cheapest return flights first.

Deals found on 30/8

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.

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?

Bangkok (BKK) – chosen by Cheapflights users on 55% 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?

Abu Dhabi (AUH) is the most affordable one-stop option, with an average return flight price of £1,044.

What’s the fastest stopover option from Chiang Mai to London Heathrow Airport?

Flights via Abu Dhabi (AUH) have the shortest average one-way travel time for one-stop routes: 16h 08m.

Which airport typically offers the quickest stopover for flights from Chiang Mai to London Heathrow Airport?

Flights via Bangkok (BKK) offer the fastest connection on this route, with an average stopover time of 2h 12m.

Reviews of airlines servicing Heathrow

See what other customers who have flown with Air China and Etihad Airways from Chiang Mai to London Heathrow Airport have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Air China

7.4

Good

163 reviews

Check prices

Reviews

1 / 7

2.0

Mediocre

guoliang,May 2026

PEK - LAX

Kayak does not have service in china thus no reminder email or even access to the kayak account to see the itinerary.. missed the flight.. also air china app requires a local phone number to register.. yep.. they consider themself international airliner but does not allow anyone outside china to use the app.

Air China

7.4

Good

163 reviews

Air China

7.4

Good

163 reviews

Check prices

Reviews

1 / 7

2.0

Mediocre

guoliang,May 2026

PEK - LAX

Etihad Airways

7.3

Good

1,529 reviews

Air China

7.4

Good

163 reviews

Check prices

Reviews

1 / 7

2.0

Mediocre

guoliang,May 2026

PEK - LAX

Related info for your journey

What airport do you fly from for flights from Chiang Mai to London Heathrow?
If you book a flight to London Heathrow from Chiang Mai, you will be flying from Chiang Mai, which is the city’s only airport. Chiang Mai (CNX) is located 1.9 mi from the center of Chiang Mai. There are 0 flights from Chiang Mai to London Heathrow per day from 2 different airlines.
How long is the flight from Chiang Mai to London Heathrow Airport?
Air China and Etihad Airways can get you from Chiang Mai to London Heathrow Airport in just under 24h 35m. Your travel time can differ by up to 3h 35m. The distance from Chiang Mai to London Heathrow Airport is about 5598 mi. Both multi-stop and direct flights can be found to your destination and back.
What are the cheapest airlines flying from Chiang Mai to London Heathrow Airport round-trip?
Currently priced at £508, Air China will fly you from Chiang Mai to London Heathrow Airport and back. In addition to Air China, many other airlines offer competitively priced options for your trip. Check Cheapflights for deals on Etihad Airways for as low as £561.
What are the cheapest airlines to fly from Chiang Mai to London Heathrow Airport one-way?
The cheapest airline one-way is Etihad Airways, with whom users have recently found tickets for as low as £110. However, be on the lookout for offers from Thai Airways and Air China, as they are both options that can get you from Chiang Mai to London Heathrow Airport for a low price.
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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Top 2 airlines flying from Chiang Mai to Heathrow

Airline	Cheapest	Average	Flexibility	On-time
Air China	Cheapest£508	Average£545	FlexibilityNo cancel fee	On-time67%	Search Air China flights
Etihad Airways	Cheapest£561	Average£692	FlexibilityNo cancel fee	On-time75%	Search Etihad Airways flights

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How does Cheapflights help users find flights from Chiang Mai to Heathrow?

Cheapflights makes it easy to find Chiang Mai to Heathrow flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

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

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Chiang Mai to Heathrow.

Can Cheapflights find flights from Chiang Mai to Heathrow with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Chiang Mai to Heathrow, users can toggle the no change fees filter when performing a flight search.

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

Yes, Cheapflights offers price alerts on Chiang Mai to Heathrow flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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Cheap flights from Chiang Mai to London Heathrow Airport from £208

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 21/11. 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 2 September 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 2 September 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 2 September 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 2 September 2026.

Last-minute flights from Chiang Mai to HeathrowDiscover last-minute flight deals from Chiang Mai to Heathrow. Data last updated 2 September 2026 and is based on user searches.

Discover last-minute flight deals from Chiang Mai to Heathrow. Data last updated 2 September 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 2 September 2026.

Search for one-way flight options from Chiang Mai to Heathrow. Find affordable one-way fares based on user searches. Data last updated 2 September 2026.

Find flight deals from Chiang Mai to Heathrow

Round-trip from

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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.

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.

Cheapflights Insights

What’s the top stopover airport for flights from Chiang Mai to London Heathrow Airport?

Bangkok (BKK) – chosen by Cheapflights users on 55% 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?

Abu Dhabi (AUH) is the most affordable one-stop option, with an average return flight price of £1,044.

What’s the fastest stopover option from Chiang Mai to London Heathrow Airport?

Flights via Abu Dhabi (AUH) have the shortest average one-way travel time for one-stop routes: 16h 08m.

Which airport typically offers the quickest stopover for flights from Chiang Mai to London Heathrow Airport?

Flights via Bangkok (BKK) offer the fastest connection on this route, with an average stopover time of 2h 12m.

Reviews of airlines servicing Heathrow

See what other customers who have flown with Air China and Etihad Airways from Chiang Mai to London Heathrow Airport have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

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?

What are the cheapest airlines flying from Chiang Mai to London Heathrow Airport round-trip?

What are the cheapest airlines to fly from Chiang Mai to London Heathrow Airport one-way?

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

See prices for flight routes from nearby airports that may be better suited for you.

Complete your trip

Complete your trip to Heathrow by adding a car hire and/or hotel booking to your travel itinerary.

Direct flights to England

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Search flights from Chiang Mai to Heathrow by cabin class

Find flights from Chiang Mai to Heathrow, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Other flights to Heathrow

Explore flights to Heathrow departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 2 September 2026.

Chiang Mai and Heathrow flights

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Top 2 airlines flying from Chiang Mai to Heathrow

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How does Cheapflights help users find flights from Chiang Mai to Heathrow?

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

Can Cheapflights find flights from Chiang Mai to Heathrow with no change fees?

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 2 September 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 2 September 2026.

Last-minute flights from Chiang Mai to Heathrow
Discover last-minute flight deals from Chiang Mai to Heathrow. Data last updated 2 September 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 2 September 2026.