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Cheap flights from London to Chiang Mai from £262

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 28/9. Fares are subject to change and may not be available on all flights or dates of travel.
LON — CNX
6 Jul — 13 Jul1
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 1 July 2025.

Round-trip from

£572

One-way from

£262

Popular in

August

Cheapest in

March

Average price

£938
China Eastern
  • China Eastern
  • 14/11-21/11
  • 5 total stops
  • 67h 00m total
  • London to Chiang Mai
28/9
  • 28/9
  • 3 total stops
  • 21h 35m total
  • London to Chiang Mai
Highest demand for flights based on searches. 17% potential increase in price (£107 potential increase over avg. return price).
Cheapest flight prices on average. 4% potential price decrease (£20 potential savings vs. average return price).
Average for round-trip flights in July 2025

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 1 July 2025.

Fri 14/1110:30LGW - CNX
2 stops21h 55mChina Eastern
Fri 21/1116:25CNX - LGW
3 stops45h 05mChina Eastern
Deal found 29/6£572
Mon 3/1121:00LHR - CNX
2 stops35h 25mChina Eastern
Mon 15/1216:25CNX - LHR
2 stops56h 05mChina Eastern
Deal found 30/6£573
Mon 11/806:00LGW - CNX
3 stops26h 50mMultiple Airlines
Thu 21/808:00CNX - LGW
2 stops29h 10mMultiple Airlines
Deal found 29/6£580
Tue 16/920:50LHR - CNX
2 stops20h 35mMultiple Airlines
Sat 27/922:25CNX - LHR
2 stops26h 45mMultiple Airlines
Deal found 30/6£580
Sat 27/907:30STN - CNX
3 stops33h 55mMultiple Airlines
Fri 17/1017:20CNX - STN
2 stops25h 35mMultiple Airlines
Deal found 28/6£607
Fri 14/1121:10LHR - CNX
2 stops41h 40mAir China
Fri 21/1123:05CNX - LHR
2 stops51h 05mAir China
Deal found 28/6£615
Sat 22/1120:55LHR - CNX
1 stop26h 10mEtihad Airways
Sat 6/1208:50CNX - LHR
1 stop28h 55mEtihad Airways
Deal found 28/6£630
Wed 2/715:00LGW - CNX
2 stops19h 15mQatar Airways
Fri 11/712:20CNX - LGW
2 stops24h 20mQatar Airways
Deal found 30/6£647
Mon 27/1022:00LHR - CNX
1 stop36h 50mChina Southern
Sat 8/1118:50CNX - LHR
1 stop30h 25mChina Southern
Deal found 29/6£655
Sun 14/916:00LHR - CNX
2 stops18h 15mQatar Airways
Sat 27/916:55CNX - LHR
2 stops19h 30mQatar Airways
Deal found 28/6£694
Fri 26/1211:35LGW - CNX
1 stop27h 15mAir China
Thu 15/123:05CNX - LGW
2 stops38h 50mAir China
Deal found 28/6£702
Sun 14/918:40LGW - CNX
2 stops37h 05mSWISS
Sat 27/920:00CNX - LGW
2 stops51h 50mSWISS
Deal found 27/6£703

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 1 July 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

Fri 14/11

10:30-15:25

2 stops21h 55m

Chiang Mai

Fri 21/11

16:25-06:30

3 stops45h 05m

£572

LondonChiang Mai

LGW - CNX

LGWCNX

London Gatwick

Mon 11/8

06:00-14:50

3 stops26h 50m

Chiang Mai

Thu 21/8

08:00-07:10

2 stops29h 10m

£580

LondonChiang Mai

LHR - CNX

LHRCNX

London Heathrow

Tue 16/9

20:50-23:25

2 stops20h 35m

Chiang Mai

Sat 27/9

22:25-19:10

2 stops26h 45m

£580

LondonChiang Mai

STN - CNX

STNCNX

London Stansted

Sat 27/9

07:30-23:25

3 stops33h 55m

Chiang Mai

Fri 17/10

17:20-12:55

2 stops25h 35m

£607

LondonChiang Mai

LHR - CNX

LHRCNX

London Heathrow

Wed 24/9

21:20-15:20

2 stops36h 00m

Chiang Mai

Sat 29/11

15:35-17:30

1 stop32h 55m

£624

LondonChiang Mai

LHR - CNX

LHRCNX

London Heathrow

Sun 14/9

16:00-16:15

2 stops18h 15m

Chiang Mai

Sat 27/9

16:55-06:25

2 stops19h 30m

£694

LondonChiang Mai

LHR - CNX

LHRCNX

London Heathrow

Wed 24/9

20:25-21:50

1 stop19h 25m

Chiang Mai

Sat 29/11

23:05-15:55

1 stop23h 50m

£698

LondonChiang Mai

LGW - CNX

LGWCNX

London Gatwick

Fri 26/12

11:35-21:50

1 stop27h 15m

Chiang Mai

Thu 15/1

23:05-06:55

2 stops38h 50m

£702

LondonChiang Mai

LGW - CNX

LGWCNX

London Gatwick

Sun 14/9

18:40-13:45

2 stops37h 05m

Chiang Mai

Sat 27/9

20:00-17:50

2 stops51h 50m

£703

LondonChiang Mai

LHR - CNX

LHRCNX

London Heathrow

Sat 27/9

21:25-11:40

1 stop32h 15m

Chiang Mai

Fri 17/10

09:25-19:15

1 stop15h 50m

£704

Flights are sorted by cheapest return flights first.

Deals found on 30/6

Showing 1-10 of 40 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 27 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 £1,360). 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 1 July 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.

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 1 July 2025.
See what other customers who have flown with Emirates, KLM, andChina Southern from London to Chiang Mai have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Comfort

8.0

Boarding

8.1

Food

7.8

Crew

8.3

Entertainment

8.2

Overall

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jun 2025

ATH - EWR

Best flight I taken. Airline stewards were very attentive and creative a very comfortable environment. Food was plentiful, gave a variety for each meal and delicious.

Comfort

8.0

Boarding

8.1

Food

7.8

Crew

8.3

Entertainment

8.2

Overall

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jun 2025

ATH - EWR

Best flight I taken. Airline stewards were very attentive and creative a very comfortable environment. Food was plentiful, gave a variety for each meal and delicious.

Comfort

8.0

Boarding

8.1

Food

7.8

Crew

8.3

Entertainment

8.2

Overall

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jun 2025

ATH - EWR

Best flight I taken. Airline stewards were very attentive and creative a very comfortable environment. Food was plentiful, gave a variety for each meal and delicious.

Comfort

8.0

Boarding

8.1

Food

7.8

Crew

8.3

Entertainment

8.2

Overall

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jun 2025

ATH - EWR

Best flight I taken. Airline stewards were very attentive and creative a very comfortable environment. Food was plentiful, gave a variety for each meal and delicious.

Comfort

8.0

Boarding

8.1

Food

7.8

Crew

8.3

Entertainment

8.2

Overall

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jun 2025

ATH - EWR

Best flight I taken. Airline stewards were very attentive and creative a very comfortable environment. Food was plentiful, gave a variety for each meal and delicious.

Comfort

8.0

Boarding

8.1

Food

7.8

Crew

8.3

Entertainment

8.2

Overall

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jun 2025

ATH - EWR

Best flight I taken. Airline stewards were very attentive and creative a very comfortable environment. Food was plentiful, gave a variety for each meal and delicious.

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 £572, was found to be the cheapest airline from London to Chiang Mai.Alternate airlines flying return to your destination include China Southern and Air China. China Eastern is priced at 16% 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 £346. Air China flights start at £361 while deals on China Eastern start at £362 one-way.

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

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

  • 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 £18.

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

  • 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 £1,360). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for London to Chiang Mai

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

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 1 July 2025.
AirlineCheapestAverageFlexibilityOn-time
China SouthernCheapest£414Average£462FlexibilityNo cancel feeOn-time69%
Search China Southern flights
China EasternCheapest£444Average£525FlexibilityNo cancel feeOn-time62%
Search China Eastern flights
Air ChinaCheapest£455Average£540FlexibilityNo cancel feeOn-time67%
Search Air China flights
Malaysia AirlinesCheapest£541Average£729FlexibilityNo cancel feeOn-time67%
Search Malaysia Airlines flights
Etihad AirwaysCheapest£627Average£696FlexibilityNo cancel feeOn-time75%
Search Etihad Airways flights
EVA AirCheapest£652Average£734FlexibilityNo cancel feeOn-time74%
Search EVA Air flights
Cathay PacificCheapest£666Average£878FlexibilityNo cancel feeOn-time72%
Search Cathay Pacific flights
Thai AirwaysCheapest£685Average£818FlexibilityNo cancel feeOn-time77%
Search Thai Airways flights
Singapore AirlinesCheapest£709Average£903FlexibilityNo cancel feeOn-time81%
Search Singapore Airlines flights

Fly with Cheapflights

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

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

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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