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Cheap flights from London to Chiang Mai from £326

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.
LON — CNX
7 Dec — 14 Dec1
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 23 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 7 November 2025.

Round-trip from

£487

One-way from

£326

Popular in

August

Cheapest in

March

Average price

£583
China Eastern
  • China Eastern
  • 26/1-2/2
  • 5 total stops
  • 60h 30m total
  • London to Chiang Mai
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21/11
  • 21/11
  • 2 total stops
  • 22h 55m total
  • London to Chiang Mai
Search Deals
Highest demand for flights based on searches. 19% potential increase in price (£128 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£24 potential savings vs. average return price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

Find 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 7 November 2025.

Mon 1/1217:00LGW - CNX
3 stops33h 05mChina Eastern
Tue 16/1210:05CNX - LGW
2 stops27h 25mChina Eastern
Deal found 5/11£487
Tue 11/1110:30LGW - CNX
1 stop20h 50mChina Eastern
Sun 30/1115:35CNX - LGW
1 stop29h 25mChina Eastern
Deal found 6/11£490
Wed 12/1110:30LGW - CNX
2 stops39h 35mChina Eastern
Wed 19/1115:35CNX - LGW
1 stop21h 55mChina Eastern
Deal found 7/11£493
Wed 12/1120:25LHR - CNX
1 stop18h 25mAir China
Mon 1/1223:05CNX - LHR
1 stop23h 50mAir China
Deal found 6/11£493
Mon 10/1120:25LHR - CNX
1 stop18h 25mAir China
Sun 30/1123:05CNX - LHR
1 stop23h 50mAir China
Deal found 6/11£495
Sat 6/1210:30LGW - CNX
1 stop20h 50mChina Eastern
Sat 13/1215:35CNX - LGW
1 stop29h 25mChina Eastern
Deal found 6/11£507
Fri 5/1217:00LGW - CNX
2 stops33h 05mChina Eastern
Fri 12/1210:05CNX - LGW
3 stops34h 55mChina Eastern
Deal found 5/11£513
Sun 16/1121:00LHR - CNX
1 stop34h 20mChina Eastern
Wed 10/1216:25CNX - LHR
2 stops32h 05mChina Eastern
Deal found 6/11£514
Sat 22/1110:30LGW - CNX
1 stop20h 50mChina Eastern
Sat 6/1215:35CNX - LGW
1 stop21h 55mChina Eastern
Deal found 6/11£515
Fri 21/1117:40LHR - CNX
1 stop21h 10mAir China
Wed 17/1223:05CNX - LHR
1 stop23h 50mAir China
Deal found 7/11£515
Mon 10/1120:25LHR - CNX
1 stop18h 25mAir China
Mon 1/1223:05CNX - LHR
1 stop23h 50mAir China
Deal found 6/11£516
Mon 1/1221:00LHR - CNX
2 stops29h 05mChina Eastern
Tue 16/1216:25CNX - LHR
2 stops32h 05mChina Eastern
Deal found 5/11£519

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 7 November 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

Mon 26/1

17:00-09:05

2 stops33h 05m

Chiang Mai

Mon 2/2

10:05-06:30

3 stops27h 25m

£487

LondonChiang Mai

LGW - CNX

LGWCNX

London Gatwick

Tue 2/12

10:30-09:05

3 stops39h 35m

Chiang Mai

Wed 10/12

10:05-06:30

3 stops27h 25m

£487

LondonChiang Mai

LGW - CNX

LGWCNX

London Gatwick

Mon 5/1

10:30-14:20

1 stop20h 50m

Chiang Mai

Mon 2/2

10:05-06:30

2 stops27h 25m

£493

LondonChiang Mai

LGW - CNX

LGWCNX

London Gatwick

Wed 21/1

17:00-09:05

3 stops33h 05m

Chiang Mai

Mon 2/2

10:05-06:30

3 stops27h 25m

£498

LondonChiang Mai

LGW - CNX

LGWCNX

London Gatwick

Fri 6/3

10:30-14:20

1 stop20h 50m

Chiang Mai

Sat 14/3

15:35-06:30

1 stop21h 55m

£512

LondonChiang Mai

LGW - CNX

LGWCNX

London Gatwick

Fri 5/12

17:00-09:05

2 stops33h 05m

Chiang Mai

Fri 12/12

10:05-14:00

2 stops34h 55m

£513

LondonChiang Mai

LGW - CNX

LGWCNX

London Gatwick

Sun 11/1

17:00-09:05

3 stops33h 05m

Chiang Mai

Wed 11/2

15:35-14:00

1 stop29h 25m

£517

LondonChiang Mai

LGW - CNX

LGWCNX

London Gatwick

Fri 20/2

17:00-14:20

1 stop38h 20m

Chiang Mai

Fri 20/3

10:05-14:00

3 stops34h 55m

£517

LondonChiang Mai

LHR - CNX

LHRCNX

London Heathrow

Sat 22/11

20:25-21:50

1 stop18h 25m

Chiang Mai

Sat 6/12

23:05-15:55

1 stop23h 50m

£518

LondonChiang Mai

LGW - CNX

LGWCNX

London Gatwick

Sat 22/11

10:30-14:20

1 stop20h 50m

Chiang Mai

Sat 6/12

10:05-06:30

3 stops27h 25m

£521

Flights are sorted by cheapest return flights first.

Deals found on 7/11

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 31 October 2025.

To ensure you get the cheapest price possible for a flight from London to Chiang Mai, you should look to book at least 23 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, October is the cheapest month in which you can book a flight from London to Chiang Mai (average of £436). Flying from London to Chiang Mai in July is currently the most expensive (average of £665). 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 7 November 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 43% 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 £535.

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 Abu Dhabi (AUH) have the shortest average one-way travel time for one-stop routes: 14h 40m.

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 Abu Dhabi (AUH) offer the fastest connection on this route, with an average stopover time of 1h 46m.

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 7 November 2025.
See what other customers who have flown with EVA Air, Thai Airways, andEtihad Airways 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.
EVA Air
8.4
Very Good
1,272 reviews
Check prices

Boarding

8.4

Crew

8.6

Food

8.1

Overall

8.4

Comfort

8.3

Entertainment

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Oct 2025

TPE - YYZ

All was well. Despite the flight being delayed a few minutes, passengers were made sure to be informed and updated on the status of the delay.
EVA Air
8.4
Very Good
1,272 reviews
EVA Air
8.4
Very Good
1,272 reviews
Check prices

Boarding

8.4

Crew

8.6

Food

8.1

Overall

8.4

Comfort

8.3

Entertainment

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Oct 2025

TPE - YYZ

All was well. Despite the flight being delayed a few minutes, passengers were made sure to be informed and updated on the status of the delay.
Thai Airways
7.8
Good
361 reviews
EVA Air
8.4
Very Good
1,272 reviews
Check prices

Boarding

8.4

Crew

8.6

Food

8.1

Overall

8.4

Comfort

8.3

Entertainment

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Oct 2025

TPE - YYZ

All was well. Despite the flight being delayed a few minutes, passengers were made sure to be informed and updated on the status of the delay.
Etihad Airways
7.4
Good
1,285 reviews
EVA Air
8.4
Very Good
1,272 reviews
Check prices

Boarding

8.4

Crew

8.6

Food

8.1

Overall

8.4

Comfort

8.3

Entertainment

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Oct 2025

TPE - YYZ

All was well. Despite the flight being delayed a few minutes, passengers were made sure to be informed and updated on the status of the delay.
China Eastern
7.2
Good
174 reviews
EVA Air
8.4
Very Good
1,272 reviews
Check prices

Boarding

8.4

Crew

8.6

Food

8.1

Overall

8.4

Comfort

8.3

Entertainment

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Oct 2025

TPE - YYZ

All was well. Despite the flight being delayed a few minutes, passengers were made sure to be informed and updated on the status of the delay.
Air China
7.1
Good
122 reviews
EVA Air
8.4
Very Good
1,272 reviews
Check prices

Boarding

8.4

Crew

8.6

Food

8.1

Overall

8.4

Comfort

8.3

Entertainment

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Oct 2025

TPE - YYZ

All was well. Despite the flight being delayed a few minutes, passengers were made sure to be informed and updated on the status of the delay.

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 SWISS fly from London to Chiang Mai in about 18h 25m. The time it takes to get you to your destination can typically vary by up to 14h 40m. 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 Southern, at £430, was found to be the cheapest airline from London to Chiang Mai.Alternate airlines flying return to your destination include China Eastern and Air China. China Southern is priced at 39% lower than the current average price of a flight leaving 3 months from now.

  • 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, 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 £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, October is the cheapest month in which you can book a flight from London to Chiang Mai (average of £436). Flying from London to Chiang Mai in July is currently the most expensive (average of £665). 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

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Luton to Chiang Mai flights

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 7 November 2025.
AirlineCheapestAverageFlexibilityOn-time
China SouthernCheapest£430Average£586FlexibilityNo cancel feeOn-time69%
Search China Southern flights
China EasternCheapest£465Average£556FlexibilityNo cancel feeOn-time62%
Search China Eastern flights
Air ChinaCheapest£467Average£589FlexibilityNo cancel feeOn-time67%
Search Air China flights
Etihad AirwaysCheapest£553Average£685FlexibilityNo cancel feeOn-time75%
Search Etihad Airways flights
Malaysia AirlinesCheapest£567Average£790FlexibilityNo cancel feeOn-time67%
Search Malaysia Airlines flights
Austrian AirlinesCheapest£589Average£786FlexibilityNo cancel feeOn-time78%
Search Austrian Airlines flights
Cathay PacificCheapest£698Average£877FlexibilityNo cancel feeOn-time72%
Search Cathay Pacific flights
EVA AirCheapest£709Average£764FlexibilityNo cancel feeOn-time74%
Search EVA Air flights
Thai AirwaysCheapest£718Average£867FlexibilityNo cancel feeOn-time77%
Search Thai Airways flights
Singapore AirlinesCheapest£742Average£946FlexibilityNo 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?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Chiang Mai from London today with Cheapflights!

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

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from London to Chiang Mai for you. Better yet — we are completely free to use.

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.

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

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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