Cheap flights from London to Chiang Mai from £331

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 9/1. Fares are subject to change and may not be available on all flights or dates of travel.
LON — CNX
22 Jan — 29 Jan1
1 adult
1 adult, Economy, 0 bags

Cheapflights Tip: The best prices from London to Chiang Mai are usually found in March or May, booked 45 days in advance, depart on a Thursday or Tuesday and return on a Monday

Cheap flight deals from London to Chiang Mai

Enter your travel dates to find the best prices.

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 23 December 2025.

Mon 29/1217:00LGW - CNX
2 stops33h 05mChina Eastern
Sun 18/110:05CNX - LGW
3 stops58h 55mChina Eastern
Deal found 21/12£621
Mon 29/1221:00LHR - CNX
3 stops42h 20mMultiple Airlines
Sun 18/108:50CNX - LHR
1 stop16h 20mMultiple Airlines
Deal found 21/12£645
Tue 30/1210:30LGW - CNX
2 stops39h 35mChina Eastern
Wed 21/115:35CNX - LGW
1 stop29h 25mChina Eastern
Deal found 21/12£668
Tue 30/1221:30LHR - CNX
2 stops39h 50mMultiple Airlines
Sun 18/108:50CNX - LHR
1 stop16h 20mMultiple Airlines
Deal found 21/12£688
Mon 29/1222:00LHR - CNX
1 stop36h 50mChina Southern
Sun 18/118:50CNX - LHR
1 stop29h 10mChina Southern
Deal found 21/12£701
Tue 30/1221:30LHR - CNX
2 stops39h 50mMultiple Airlines
Tue 20/108:50CNX - LHR
1 stop16h 20mMultiple Airlines
Deal found 21/12£714
Fri 26/1221:00LHR - CNX
2 stops35h 25mChina Eastern
Sat 28/215:35CNX - LHR
1 stop32h 55mChina Eastern
Deal found 22/12£755
Fri 26/1221:00LHR - CNX
2 stops29h 05mMultiple Airlines
Tue 24/208:50CNX - LHR
1 stop28h 50mMultiple Airlines
Deal found 22/12£757
Sun 28/1221:30LHR - CNX
2 stops27h 05mMultiple Airlines
Sun 18/108:50CNX - LHR
1 stop16h 20mMultiple Airlines
Deal found 22/12£783
Tue 30/1222:00LHR - CNX
1 stop36h 50mChina Southern
Mon 19/118:50CNX - LHR
1 stop30h 45mChina Southern
Deal found 21/12£798
Thu 25/1206:40LHR - CNX
3 stops22h 15mMultiple Airlines
Sun 18/108:50CNX - LHR
1 stop16h 20mMultiple Airlines
Deal found 22/12£799
Mon 29/1217:00LGW - CNX
2 stops33h 05mChina Eastern
Wed 4/223:20CNX - LGW
1 stop38h 10mChina Eastern
Deal found 21/12£877

Find 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 23 December 2025.

Round-trip from

£363

One-way from

£331

Popular in

August

Cheapest in

March

Average price

£897
China Eastern
  • China Eastern
  • 13/1-27/1
  • 2 total stops
  • 50h 15m total
  • London to Chiang Mai
9/1
  • 9/1
  • 2 total stops
  • 38h 00m total
  • London to Chiang Mai
Highest demand for flights based on searches. 18% potential increase in price (£118 potential increase over avg. return price).
Cheapest flight prices on average. 4% potential price decrease (£21 potential savings vs. average return price).
Average for round-trip flights in December 2025

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 23 December 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

Tue 13/1

10:30-14:20

1 stop20h 50m

Chiang Mai

Tue 27/1

15:35-14:00

1 stop29h 25m

£363

LondonChiang Mai

LGW - CNX

LGWCNX

London Gatwick

Thu 15/1

10:30-15:25

2 stops21h 55m

Chiang Mai

Thu 29/1

15:35-14:00

1 stop29h 25m

£368

LondonChiang Mai

LHR - CNX

LHRCNX

London Heathrow

Tue 13/1

21:00-09:05

2 stops29h 05m

Chiang Mai

Tue 27/1

16:25-17:30

2 stops32h 05m

£404

LondonChiang Mai

LGW - CNX

LGWCNX

London Gatwick

Fri 9/1

11:35-21:50

1 stop27h 15m

Chiang Mai

Mon 19/1

23:05-05:35

1 stop37h 30m

£432

LondonChiang Mai

LHR - CNX

LHRCNX

London Heathrow

Tue 20/1

21:00-14:20

1 stop34h 20m

Chiang Mai

Tue 9/6

08:45-12:45

1 stop34h 00m

£453

LondonChiang Mai

LGW - CNX

LGWCNX

London Gatwick

Sat 31/1

10:30-15:25

2 stops21h 55m

Chiang Mai

Wed 4/3

10:05-06:30

2 stops27h 25m

£458

LondonChiang Mai

LGW - CNX

LGWCNX

London Gatwick

Thu 22/1

17:00-14:20

1 stop38h 20m

Chiang Mai

Tue 3/2

15:35-14:00

1 stop29h 25m

£459

LondonChiang Mai

LGW - CNX

LGWCNX

London Gatwick

Fri 9/1

10:30-09:05

3 stops39h 35m

Chiang Mai

Sun 25/1

16:25-14:00

2 stops28h 35m

£462

LondonChiang Mai

LGW - CNX

LGWCNX

London Gatwick

Sat 17/1

10:30-14:20

1 stop20h 50m

Chiang Mai

Sat 7/2

23:20-14:00

1 stop21h 40m

£464

LondonChiang Mai

LGW - CNX

LGWCNX

London Gatwick

Mon 2/3

10:30-14:20

1 stop20h 50m

Chiang Mai

Sun 15/3

15:35-14:00

1 stop29h 25m

£464

Flights are sorted by cheapest return flights first.

Deals found on 22/12

Showing 1-10 of 60 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 19 December 2025.

To ensure you get the cheapest price possible for a flight from London to Chiang Mai, you should look to book at least 45 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, January is the cheapest month in which you can book a flight from London to Chiang Mai (average of £361). Flying from London to Chiang Mai in July is currently the most expensive (average of £645). 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 23 December 2025.

It’s optimal to fly from London to Chiang Mai in the afternoon. By choosing this option you can save up to 59% on the cost of your flight, compared to a flight at midday.

How much does it cost for a return flight from London to Chiang Mai?

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

Share of one-stop return flights from London to Chiang Mai chosen by Cheapflights users in the past 12 months, using the same stopover each way.

Bangkok (BKK) – chosen by Cheapflights users on 39% of one-stop itineraries from London to Chiang Mai on Cheapflights.

What’s the cheapest stopover airport for flights from London to Chiang Mai?

Average return fare for one-stop flights from London to Chiang Mai, chosen by Cheapflights users in the past 12 months, with the same stopover each way.

Guangzhou (CAN) is the most affordable one-stop option, with an average return flight price of £485.

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

Shortest average travel time for one-stop one-way flights from London to Chiang Mai, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by stopover airport.

Flights via Bangkok (BKK) have the shortest average one-way travel time for one-stop routes: 14h 45m.

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

Average stopover duration for one-stop one-way flights from London to Chiang Mai, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Bangkok (BKK) offer the fastest connection on this route, with an average stopover time of 1h 48m.

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 23 December 2025.
See what other customers who have flown with Thai Airways, Etihad Airways, andMalaysia Airlines 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.

Overall

7.8

Crew

8.3

Food

7.3

Boarding

7.8

Entertainment

6.9

Comfort

7.5

Reviews

1 / 18
10.0
Excellent

Joe,Jun 2025

BKK - TPE

The flight was very comfortable, and I really appreciated that each seat had an electric outlet to charge devices. The staff was great.

Overall

7.8

Crew

8.3

Food

7.3

Boarding

7.8

Entertainment

6.9

Comfort

7.5

Reviews

1 / 18
10.0
Excellent

Joe,Jun 2025

BKK - TPE

The flight was very comfortable, and I really appreciated that each seat had an electric outlet to charge devices. The staff was great.

Overall

7.8

Crew

8.3

Food

7.3

Boarding

7.8

Entertainment

6.9

Comfort

7.5

Reviews

1 / 18
10.0
Excellent

Joe,Jun 2025

BKK - TPE

The flight was very comfortable, and I really appreciated that each seat had an electric outlet to charge devices. The staff was great.

Overall

7.8

Crew

8.3

Food

7.3

Boarding

7.8

Entertainment

6.9

Comfort

7.5

Reviews

1 / 18
10.0
Excellent

Joe,Jun 2025

BKK - TPE

The flight was very comfortable, and I really appreciated that each seat had an electric outlet to charge devices. The staff was great.

Overall

7.8

Crew

8.3

Food

7.3

Boarding

7.8

Entertainment

6.9

Comfort

7.5

Reviews

1 / 18
10.0
Excellent

Joe,Jun 2025

BKK - TPE

The flight was very comfortable, and I really appreciated that each seat had an electric outlet to charge devices. The staff was great.

Overall

7.8

Crew

8.3

Food

7.3

Boarding

7.8

Entertainment

6.9

Comfort

7.5

Reviews

1 / 18
10.0
Excellent

Joe,Jun 2025

BKK - TPE

The flight was very comfortable, and I really appreciated that each seat had an electric outlet to charge devices. The staff was great.

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 10 airlines. Chiang Mai is conveniently located just 1.9 mi from Chiang Mai’s city center.

  • How long is the flight from London to Chiang Mai?

    Airlines like China Eastern, Air China, and Malaysia Airlines fly from London to Chiang Mai in about 20h 40m. The time it takes to get you to your destination can typically vary by up to 6h 35m. London and Chiang Mai are separated by a distance of 5598 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

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

    China Eastern, at £392, 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 43% 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 Air China, which is currently one of the cheapest options available, starting at £304. China Eastern flights start at £323 while deals on Etihad Airways start at £374 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, Siam Square, and Thailand Cultural Center. Travelers on a layover in Bangkok can visit Pratunam, Siam Square, and Thailand Cultural Center, by traveling 14.8 mi, 15.1 mi, and 13.1 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 £23.

  • 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, January is the cheapest month in which you can book a flight from London to Chiang Mai (average of £361). Flying from London to Chiang Mai in July is currently the most expensive (average of £645). 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.

Top 10 airlines flying from London to Chiang Mai

Discover the top 10 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 23 December 2025.
AirlineCheapestAverageFlexibilityOn-time
China EasternCheapest£392Average£539FlexibilityNo cancel feeOn-time62%
Search China Eastern flights
China SouthernCheapest£423Average£475FlexibilityNo cancel feeOn-time69%
Search China Southern flights
Air ChinaCheapest£425Average£562FlexibilityNo cancel feeOn-time67%
Search Air China flights
Etihad AirwaysCheapest£537Average£664FlexibilityNo cancel feeOn-time75%
Search Etihad Airways flights
Malaysia AirlinesCheapest£551Average£618FlexibilityNo cancel feeOn-time67%
Search Malaysia Airlines flights
Austrian AirlinesCheapest£558Average£611FlexibilityNo cancel feeOn-time78%
Search Austrian Airlines flights
EVA AirCheapest£602Average£741FlexibilityNo cancel feeOn-time74%
Search EVA Air flights
Singapore AirlinesCheapest£632Average£867FlexibilityNo cancel feeOn-time81%
Search Singapore Airlines flights
Cathay PacificCheapest£680Average£808FlexibilityNo cancel feeOn-time72%
Search Cathay Pacific flights
Thai AirwaysCheapest£703Average£844FlexibilityNo cancel feeOn-time77%
Search Thai Airways 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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