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Cheap flights from London to Chiang Mai from £263

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 29/9. Fares are subject to change and may not be available on all flights or dates of travel.
LON — CNX
18 Jun — 25 Jun1
1 adult

Cheapflights Tip: The best prices from London to Chiang Mai are usually found in March or February, booked 53 days in advance, depart on a Thursday or Tuesday and return on a Monday

Cheap flight deals from London to Chiang Mai

Discover tips and strategies to find the most affordable flight options for your journey from London (LON) to Chiang Mai (CNX). 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

£550

One-way from

£263

Popular in

July

Cheapest in

March

Average price

£679
China Eastern
  • China Eastern
  • 13/11-29/11
  • 2 total stops
  • 42h 45m total
  • London to Chiang Mai
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29/9
  • 29/9
  • 3 total stops
  • 25h 45m total
  • London to Chiang Mai
Search Deals
Highest demand for flights based on searches. 21% potential increase in price (£143 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£22 potential savings vs. average return price).
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Average for round-trip flights in June 2025
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Find flight deals from London to Chiang Mai

Cheapest flights from London to Chiang Mai
Explore the most affordable flight options available from London to Chiang Mai. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 13 June 2025.

Wed 24/911:35LGW - CNX
1 stop19h 50mChina Eastern
Sat 29/1115:35CNX - LGW
1 stop21h 55mChina Eastern
Deal found 10/6£526
Sat 15/1121:00LHR - CNX
1 stop34h 20mChina Eastern
Sun 30/1115:35CNX - LHR
1 stop32h 55mChina Eastern
Deal found 12/6£553
Sun 30/1116:00LGW - CNX
1 stop14h 25mMultiple Airlines
Thu 4/1208:05CNX - LGW
1 stop17h 20mMultiple Airlines
Deal found 12/6£553
Tue 24/614:35LTN - CNX
3 stops25h 20mMultiple Airlines
Tue 22/706:30CNX - LTN
3 stops41h 15mMultiple Airlines
Deal found 11/6£555
Mon 29/1220:25LHR - CNX
2 stops28h 05mMultiple Airlines
Wed 14/106:35CNX - LHR
2 stops44h 05mMultiple Airlines
Deal found 12/6£556
Sat 22/1110:25LHR - CNX
1 stop18h 00mMalaysia Airlines
Sat 6/1214:50CNX - LHR
1 stop31h 35mMalaysia Airlines
Deal found 11/6£557
Fri 14/1121:10LHR - CNX
2 stops41h 40mAir China
Sun 30/1123:05CNX - LHR
2 stops51h 35mAir China
Deal found 12/6£559
Tue 25/1111:40LGW - CNX
2 stops51h 10mAir China
Fri 5/1223:05CNX - LGW
2 stops38h 50mAir China
Deal found 12/6£594
Wed 5/1122:00LHR - CNX
1 stop36h 50mChina Southern
Fri 5/1218:50CNX - LHR
1 stop30h 25mChina Southern
Deal found 11/6£606
Tue 25/1120:55LHR - CNX
1 stop26h 00mEtihad Airways
Thu 4/1208:50CNX - LHR
1 stop16h 35mEtihad Airways
Deal found 12/6£614
Tue 26/818:40LHR - CNX
2 stops37h 05mSWISS
Sun 28/920:00CNX - LHR
2 stops41h 55mSWISS
Deal found 13/6£623
Wed 26/1118:40LGW - CNX
2 stops36h 05mSWISS
Fri 5/1210:10CNX - LGW
2 stops38h 40mSWISS
Deal found 12/6£638

Cheapflights Fare Finder

Customise your flight search to find flights from London to Chiang Mai 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 858,174 searches. Data last updated 13 June 2025.
Use the filters below to find and compare flights from London to Chiang Mai that are best for you.

Fly from

London

Fly to

Chiang Mai

Route

Depart

Return

Price

LondonChiang Mai

LGW - CNX

LGWCNX

London Gatwick

Thu 13/11

10:30-14:20

1 stop20h 50m

Chiang Mai

Sat 29/11

15:35-06:30

1 stop21h 55m

£550

LondonChiang Mai

LHR - CNX

LHRCNX

London Heathrow

Sat 15/11

21:00-14:20

1 stop34h 20m

Chiang Mai

Sat 29/11

15:35-17:30

1 stop32h 55m

£553

LondonChiang Mai

LGW - CNX

LGWCNX

London Gatwick

Sun 30/11

16:00-13:25

1 stop14h 25m

Chiang Mai

Thu 4/12

08:05-18:25

1 stop17h 20m

£553

LondonChiang Mai

LTN - CNX

LTNCNX

London Luton

Tue 24/6

14:35-21:55

3 stops25h 20m

Chiang Mai

Tue 22/7

06:30-17:45

3 stops41h 15m

£555

LondonChiang Mai

LHR - CNX

LHRCNX

London Heathrow

Sat 22/11

10:25-11:25

1 stop18h 00m

Chiang Mai

Sat 6/12

14:50-15:25

1 stop31h 35m

£557

LondonChiang Mai

LHR - CNX

LHRCNX

London Heathrow

Fri 14/11

21:10-21:50

2 stops41h 40m

Chiang Mai

Sun 30/11

23:05-19:40

2 stops51h 35m

£559

LondonChiang Mai

LHR - CNX

LHRCNX

London Heathrow

Fri 14/11

17:40-22:20

2 stops21h 40m

Chiang Mai

Sun 30/11

08:25-15:55

2 stops38h 30m

£561

LondonChiang Mai

LGW - CNX

LGWCNX

London Gatwick

Tue 25/11

11:40-21:50

2 stops51h 10m

Chiang Mai

Fri 5/12

23:05-05:35

1 stop37h 30m

£587

LondonChiang Mai

LHR - CNX

LHRCNX

London Heathrow

Wed 5/11

22:00-17:50

1 stop36h 50m

Chiang Mai

Fri 5/12

18:50-18:15

1 stop30h 25m

£606

LondonChiang Mai

LGW - CNX

LGWCNX

London Gatwick

Tue 26/8

18:35-13:45

2 stops37h 10m

Chiang Mai

Sun 28/9

20:00-17:50

2 stops51h 50m

£614

Flights are sorted by cheapest return flights first.

Deals found on 11/6

Showing 1-10 of 48 results
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Best time to book a flight from London to Chiang Mai

Have a flexible travel schedule? Discover the best time to fly to Chiang Mai from London 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 London to Chiang Mai

How far ahead should I book a flight from London to Chiang Mai?

Use this chart to determine the optimal time to book a return flight from London to Chiang Mai. Price data was last updated on 9 June 2025.

To ensure you get the cheapest price possible for a flight from London to Chiang Mai, you should look to book at least 53 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, April is the cheapest month in which you can book a flight from London to Chiang Mai (average of £776). Flying from London to Chiang Mai in July is currently the most expensive (average of £1,403). 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.

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

Find hourly flight availability from London to Chiang Mai. 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 optimal to fly from London to Chiang Mai in the afternoon. By choosing this option you can save up to 41% on the cost of your flight, compared to a flight at midday.

Rainfall in Chiang Mai by month

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

In terms of precipitation, rainfall in Chiang Mai ranges from 0.0 - 250.0 inches per month. September is typically the wettest month, when rainfall can reach 250.0 mm. January is typically the driest time to visit Chiang Mai when rainfall is around 0.0 mm.

Temperature in Chiang Mai by month

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

If weather is an important factor for your trip to Chiang Mai, use this chart to help with planning. For those seeking warmer temperatures, April is the ideal time of year to visit, when temperatures reach an average of 29.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 21.0 C).

Reviews of airlines servicing Chiang Mai

Get insights into the airlines that provide service to Chiang Mai. 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 Chiang Mai. Reviews last updated 13 June 2025.
Read through reviews of airlines operating flights from London to Chiang Mai, such as Emirates, Singapore Airlines and KLM. 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.
Emirates
8.1
Very Good
3,265 reviews
Check prices

Crew

8.3

Overall

8.1

Food

7.8

Comfort

8.0

Entertainment

8.2

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Steven,Feb 2025

GLA - DXB

Although I was in economy it made no difference where the staff were concerned they were attentive and pleasant throughout the flight maybe one day I'll get the chance to see if there's a difference in business or 1st class service but in truth for the way I was treated I can only see the menu being an upgrade as the staff don't need upgrading and are indeed the biggest asset on a long journey a credit to the company.
Emirates
8.1
Very Good
3,265 reviews
Emirates
8.1
Very Good
3,265 reviews
Check prices

Crew

8.3

Overall

8.1

Food

7.8

Comfort

8.0

Entertainment

8.2

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Steven,Feb 2025

GLA - DXB

Although I was in economy it made no difference where the staff were concerned they were attentive and pleasant throughout the flight maybe one day I'll get the chance to see if there's a difference in business or 1st class service but in truth for the way I was treated I can only see the menu being an upgrade as the staff don't need upgrading and are indeed the biggest asset on a long journey a credit to the company.
Singapore Airlines
8.1
Very Good
1,304 reviews
Emirates
8.1
Very Good
3,265 reviews
Check prices

Crew

8.3

Overall

8.1

Food

7.8

Comfort

8.0

Entertainment

8.2

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Steven,Feb 2025

GLA - DXB

Although I was in economy it made no difference where the staff were concerned they were attentive and pleasant throughout the flight maybe one day I'll get the chance to see if there's a difference in business or 1st class service but in truth for the way I was treated I can only see the menu being an upgrade as the staff don't need upgrading and are indeed the biggest asset on a long journey a credit to the company.
KLM
7.8
Good
1,358 reviews
Emirates
8.1
Very Good
3,265 reviews
Check prices

Crew

8.3

Overall

8.1

Food

7.8

Comfort

8.0

Entertainment

8.2

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Steven,Feb 2025

GLA - DXB

Although I was in economy it made no difference where the staff were concerned they were attentive and pleasant throughout the flight maybe one day I'll get the chance to see if there's a difference in business or 1st class service but in truth for the way I was treated I can only see the menu being an upgrade as the staff don't need upgrading and are indeed the biggest asset on a long journey a credit to the company.
Thai Airways
7.7
Good
335 reviews
Emirates
8.1
Very Good
3,265 reviews
Check prices

Crew

8.3

Overall

8.1

Food

7.8

Comfort

8.0

Entertainment

8.2

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Steven,Feb 2025

GLA - DXB

Although I was in economy it made no difference where the staff were concerned they were attentive and pleasant throughout the flight maybe one day I'll get the chance to see if there's a difference in business or 1st class service but in truth for the way I was treated I can only see the menu being an upgrade as the staff don't need upgrading and are indeed the biggest asset on a long journey a credit to the company.
SWISS
7.5
Good
1,624 reviews
Emirates
8.1
Very Good
3,265 reviews
Check prices

Crew

8.3

Overall

8.1

Food

7.8

Comfort

8.0

Entertainment

8.2

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Steven,Feb 2025

GLA - DXB

Although I was in economy it made no difference where the staff were concerned they were attentive and pleasant throughout the flight maybe one day I'll get the chance to see if there's a difference in business or 1st class service but in truth for the way I was treated I can only see the menu being an upgrade as the staff don't need upgrading and are indeed the biggest asset on a long journey a credit to the company.

Related info for your journey

Find useful and relevant information for your journey from London to Chiang Mai. 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 into for flights to Chiang Mai from London?

    Most people fly into Chiang Mai (CNX) if they book a flight to Chiang Mai from London. On average, Chiang Mai has 0 inbound flights from London per day from 9 airlines. Chiang Mai is conveniently located just 1.9 mi from Chiang Mai’s city center.

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

    China Eastern, at £550, was found to be the cheapest airline from London to Chiang Mai.Alternate airlines flying return to your destination include Malaysia Airlines and Air China. China Eastern is priced at 20% lower than the current average price of a flight leaving 3 months from now.

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

    To fly one-way, consider booking your trip with China Southern, which is currently one of the cheapest options available, starting at £350. China Eastern flights start at £361 while deals on Gulf Air start at £374 one-way.

  • What are the most popular routes from London to Chiang Mai?

    While some choose either London Gatwick - Chiang Mai or London Stansted - Chiang Mai, London Heathrow - Chiang Mai is the most popular route from London to Chiang Mai.

  • Where are the most common stopover locations when flying from London to Chiang Mai?

    London to Chiang Mai flights have a stopover in Bangkok most often.

  • What are some popular things to do or see while on a stopover in Bangkok?

    Most Bangkok visitors opt to spend their time experiencing Pratunam, Thailand Cultural Center, and Patpong Night Market. Travelers on a layover in Bangkok can visit Pratunam, Thailand Cultural Center, and Patpong Night Market, by traveling 14.8 mi, 13.1 mi, and 14.9 mi, respectively after landing at Bangkok Suvarnabhumi. Those on a stopover in Bangkok in need of a car hire can book one at Bangkok Suvarnabhumi for about £21.

  • Where are the least popular stopover locations for London to Chiang Mai flights?

    Of the flights from London to Chiang Mai that have stopovers, the fewest flights stop in Shanghai.

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

    Yes. In addition to deals on London to Chiang Mai flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from London to Chiang Mai?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from London to Chiang Mai.

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

    Yes. Cheapflights offers flight deals from London to Chiang Mai 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 London to Chiang Mai?

    Currently, April is the cheapest month in which you can book a flight from London to Chiang Mai (average of £776). Flying from London to Chiang Mai in July is currently the most expensive (average of £1,403). 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

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Alternative routes for London to Chiang Mai

See prices for flight routes from nearby airports that may be better suited for you.
Heathrow to Suvarnabhumi flights
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Luton to Ko Samui flights
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Newcastle upon Tyne to Don Mueang Intl flights
Edinburgh to Don Mueang Intl flights

Top 9 airlines flying from London to Chiang Mai

Discover the top 9 airlines that operate flights from London to Chiang Mai. 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 858,174 searches. Data last updated 13 June 2025.
AirlineCheapestAverageFlexibilityOn-time
China SouthernCheapest£418Average£466FlexibilityNo cancel feeOn-time69%
Search China Southern flights
China EasternCheapest£448Average£528FlexibilityNo cancel feeOn-time62%
Search China Eastern flights
Air ChinaCheapest£458Average£543FlexibilityNo cancel feeOn-time67%
Search Air China flights
Malaysia AirlinesCheapest£546Average£735FlexibilityNo cancel feeOn-time67%
Search Malaysia Airlines flights
Etihad AirwaysCheapest£652Average£703FlexibilityNo cancel feeOn-time75%
Search Etihad Airways flights
EVA AirCheapest£658Average£740FlexibilityNo cancel feeOn-time74%
Search EVA Air flights
Cathay PacificCheapest£672Average£845FlexibilityNo cancel feeOn-time72%
Search Cathay Pacific flights
Thai AirwaysCheapest£691Average£823FlexibilityNo cancel feeOn-time77%
Search Thai Airways flights
Singapore AirlinesCheapest£715Average£911FlexibilityNo cancel feeOn-time81%
Search Singapore Airlines flights

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Yes, we can. To see specific flights from London to Chiang Mai with no change fees, users can toggle flexible booking options after using the search form above to find flights.

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Of course! You can now track prices for flights from London to Chiang Mai and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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