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Cheap flights from Chiang Mai to London Heathrow Airport from ฿11,825

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 30/6. Fares are subject to change and may not be available on all flights or dates of travel.
CNX — LHR
18 Jun — 25 Jun1
1 adult

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 13 June 2025.

Round-trip from

฿26,435

One-way from

฿11,825

Popular in

April

Cheapest in

February

Average price

฿29,383
11/9-23/9
  • 11/9-23/9
  • 4 total stops
  • 54h 45m total
  • Chiang Mai to London
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30/6
  • 30/6
  • 2 total stops
  • 37h 35m total
  • Chiang Mai to London
Search Deals
Highest demand for flights based on searches. 12% potential increase in price (฿148,664 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (฿27,150 potential savings vs. average return price).
Search Deals
Average for round-trip flights in June 2025
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Find flight deals from Chiang Mai to Heathrow

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 June 2025.

Fri 26/1212:25CNX - LHR
1 stop24h 10mMalaysia Airlines
Thu 15/110:25LHR - CNX
1 stop18h 00mMalaysia Airlines
Deal found 11/6฿25,561
Thu 11/908:00CNX - LHR
2 stops29h 30mMultiple Airlines
Tue 23/914:40LHR - CNX
2 stops25h 15mMultiple Airlines
Deal found 10/6฿26,435
Tue 17/611:30CNX - LHR
1 stop37h 30mChina Southern
Fri 28/1121:30LHR - CNX
2 stops61h 20mChina Southern
Deal found 11/6฿29,351
Mon 23/614:55CNX - LHR
1 stop33h 45mChina Eastern
Thu 3/721:20LHR - CNX
1 stop34h 05mChina Eastern
Deal found 13/6฿29,772
Sat 13/921:10CNX - LHR
2 stops17h 10mออสเตรียนแอร์ไลน์
Fri 19/919:30LHR - CNX
2 stops17h 40mออสเตรียนแอร์ไลน์
Deal found 12/6฿33,595
Thu 11/910:10CNX - LHR
2 stops32h 15mEmirates
Tue 23/914:25LHR - CNX
2 stops22h 45mEmirates
Deal found 11/6฿33,724
Thu 19/620:00CNX - LHR
2 stops27h 05mลุฟท์ฮันซ่า
Sun 30/1107:40LHR - CNX
2 stops28h 15mลุฟท์ฮันซ่า
Deal found 11/6฿33,919
Wed 10/900:45CNX - LHR
1 stop24h 05mAsiana Airlines
Tue 23/920:40LHR - CNX
1 stop21h 00mAsiana Airlines
Deal found 10/6฿34,923
Thu 26/623:05CNX - LHR
1 stop24h 40mAir China
Thu 4/1217:40LHR - CNX
1 stop21h 10mAir China
Deal found 11/6฿35,247
Tue 5/811:20CNX - LHR
1 stop35h 10mChina Airlines
Fri 8/821:10LHR - CNX
1 stop31h 10mChina Airlines
Deal found 11/6฿35,377
Thu 26/610:10CNX - LHR
2 stops35h 05mเอทิฮัดแอร์เวย์
Tue 2/1220:55LHR - CNX
1 stop26h 00mเอทิฮัดแอร์เวย์
Deal found 11/6฿35,733
Mon 23/620:00CNX - LHR
2 stops45h 25mสวิส อินเตอร์เนชั่นแนล แอร์ไลน์
Thu 3/706:00LHR - CNX
2 stops25h 45mสวิส อินเตอร์เนชั่นแนล แอร์ไลน์
Deal found 12/6฿35,863

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 13 June 2025.
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 11/9

08:00-07:30

2 stops29h 30m

London Heathrow

Tue 23/9

14:40-21:55

2 stops25h 15m

฿26,435

Chiang MaiLondon

CNX - LHR

CNXLHR

Chiang Mai

Thu 4/9

14:40-16:35

1 stop31h 55m

London Heathrow

Tue 16/9

11:00-11:40

1 stop18h 40m

฿28,347

Chiang MaiLondon

CNX - LHR

CNXLHR

Chiang Mai

Tue 24/6

18:50-19:00

1 stop30h 10m

London Heathrow

Fri 28/11

21:30-17:50

2 stops61h 20m

฿29,351

Chiang MaiLondon

CNX - LHR

CNXLHR

Chiang Mai

Mon 23/6

14:55-18:40

1 stop33h 45m

London Heathrow

Thu 3/7

21:20-13:25

1 stop34h 05m

฿29,772

Chiang MaiLondon

CNX - LHR

CNXLHR

Chiang Mai

Sat 13/9

21:10-08:20

2 stops17h 10m

London Heathrow

Fri 19/9

19:30-19:10

2 stops17h 40m

฿33,595

Chiang MaiLondon

CNX - LHR

CNXLHR

Chiang Mai

Thu 11/9

10:10-12:25

2 stops32h 15m

London Heathrow

Tue 23/9

14:25-19:10

2 stops22h 45m

฿33,724

Chiang MaiLondon

CNX - LHR

CNXLHR

Chiang Mai

Tue 24/6

11:55-17:05

2 stops35h 10m

London Heathrow

Sun 30/11

07:40-20:25

2 stops29h 45m

฿33,919

Chiang MaiLondon

CNX - LHR

CNXLHR

Chiang Mai

Wed 10/9

00:45-18:50

1 stop24h 05m

London Heathrow

Tue 23/9

20:40-23:40

1 stop21h 00m

฿34,923

Chiang MaiLondon

CNX - LHR

CNXLHR

Chiang Mai

Thu 26/6

23:05-17:45

1 stop24h 40m

London Heathrow

Thu 4/12

17:40-21:50

1 stop21h 10m

฿35,247

Chiang MaiLondon

CNX - LHR

CNXLHR

Chiang Mai

Tue 5/8

11:20-16:30

1 stop35h 10m

London Heathrow

Fri 8/8

21:10-10:20

1 stop31h 10m

฿35,377

Flights are sorted by cheapest return flights first.

Deals found on 13/6

Showing 1-10 of 24 results
1
2
3

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

Find hourly flight availability from Chiang Mai to Heathrow. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 13 June 2025.

It’s typically best to fly out from Chiang Mai to London Heathrow Airport at midday. Doing so could potentially save you 27% on the flight price compared to flying in the morning, which is usually more expensive.

Rainfall in Heathrow by month

Plan your trip to Heathrow by taking into account the average rainfall totals by month.

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.

Temperature in Heathrow by month

Plan your trip to Heathrow by taking into account the average temperature totals by month.

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).

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 13 June 2025.
Read reviews from past customers who have flown China Airlines, Asiana Airlines and Emirates from Chiang Mai to London. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
China Airlines
8.3
Very Good
738 reviews
Check prices

Overall

8.3

Crew

8.5

Boarding

8.3

Entertainment

8.0

Food

7.8

Comfort

8.0

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2025

YVR - TPE

I like the system, but the problem is the food , thre is no option, as a chef i don't recommend the food is worst we keep our hungry until taipe from vancouver
China Airlines
8.3
Very Good
738 reviews
China Airlines
8.3
Very Good
738 reviews
Check prices

Overall

8.3

Crew

8.5

Boarding

8.3

Entertainment

8.0

Food

7.8

Comfort

8.0

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2025

YVR - TPE

I like the system, but the problem is the food , thre is no option, as a chef i don't recommend the food is worst we keep our hungry until taipe from vancouver
Asiana Airlines
8.2
Very Good
440 reviews
China Airlines
8.3
Very Good
738 reviews
Check prices

Overall

8.3

Crew

8.5

Boarding

8.3

Entertainment

8.0

Food

7.8

Comfort

8.0

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2025

YVR - TPE

I like the system, but the problem is the food , thre is no option, as a chef i don't recommend the food is worst we keep our hungry until taipe from vancouver
Emirates
8.1
Very Good
3,265 reviews
China Airlines
8.3
Very Good
738 reviews
Check prices

Overall

8.3

Crew

8.5

Boarding

8.3

Entertainment

8.0

Food

7.8

Comfort

8.0

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2025

YVR - TPE

I like the system, but the problem is the food , thre is no option, as a chef i don't recommend the food is worst we keep our hungry until taipe from vancouver
Thai Airways
7.7
Good
335 reviews
China Airlines
8.3
Very Good
738 reviews
Check prices

Overall

8.3

Crew

8.5

Boarding

8.3

Entertainment

8.0

Food

7.8

Comfort

8.0

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2025

YVR - TPE

I like the system, but the problem is the food , thre is no option, as a chef i don't recommend the food is worst we keep our hungry until taipe from vancouver

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

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

    Currently priced at ฿28,347, Malaysia Airlines will fly you from Chiang Mai to London Heathrow Airport and back. In addition to Malaysia Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from China Southern and China Eastern - these airlines can fly you to your destination from ฿29,351 and ฿29,772, respectively.

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

    For one-way options, check prices for China Airlines. According to our data, you can fly for as low as ฿14,513. Users have also found prices from ฿16,036 and ฿17,947 on Thai Airways and Air China, respectively.

  • 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.

  • What is the cheapest month to book a flight from Chiang Mai to London Heathrow Airport?

    Currently, December is the cheapest month in which you can book a flight from Chiang Mai to London Heathrow Airport (average of ฿810). Flying from Chiang Mai to London Heathrow Airport in July is currently the most expensive (average of ฿1,025). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near Chiang Mai?

Book flights to Chiang Mai if you plan to visit one of these locations
Brentford
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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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