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Cheap flights from London to Chiang Mai from £227

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 1/3. Fares are subject to change and may not be available on all flights or dates of travel.
LON — CNX
14 Nov — 21 Nov1
1 adult
1 adult, Economy

Cheapflights Tip: The best prices from London to Chiang Mai are usually found in March or May, booked 71 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 15 October 2025.

Round-trip from

£495

One-way from

£227

Popular in

August

Cheapest in

March

Average price

£613
Air China
  • Air China
  • 25/11-10/12
  • 2 total stops
  • 44h 10m total
  • London to Chiang Mai
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1/3
  • 1/3
  • 3 total stops
  • 42h 40m total
  • London to Chiang Mai
Search Deals
Highest demand for flights based on searches. 19% potential increase in price (£124 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 October 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 15 October 2025.

Tue 25/1120:25LHR - CNX
1 stop18h 25mAir China
Wed 10/1223:05CNX - LHR
1 stop25h 45mAir China
Deal found 14/10£495
Thu 27/1110:30LGW - CNX
2 stops21h 55mChina Eastern
Thu 4/1210:05CNX - LGW
2 stops27h 25mChina Eastern
Deal found 13/10£496
Sun 23/1120:25LHR - CNX
1 stop18h 25mAir China
Fri 5/1223:05CNX - LHR
1 stop25h 45mAir China
Deal found 13/10£496
Fri 7/1110:30LGW - CNX
1 stop20h 50mChina Eastern
Sun 7/1210:05CNX - LGW
3 stops34h 55mChina Eastern
Deal found 12/10£497
Thu 20/1106:10STN - CNX
3 stops32h 45mMultiple Airlines
Thu 27/1108:50CNX - STN
3 stops31h 50mMultiple Airlines
Deal found 12/10£500
Fri 14/1121:50LHR - CNX
2 stops27h 10mMultiple Airlines
Fri 21/1121:45CNX - LHR
2 stops28h 15mMultiple Airlines
Deal found 14/10£500
Thu 20/1110:30LGW - CNX
3 stops39h 35mChina Eastern
Thu 27/1110:05CNX - LGW
3 stops27h 25mChina Eastern
Deal found 13/10£503
Tue 25/1110:30LGW - CNX
2 stops21h 55mChina Eastern
Tue 3/316:25CNX - LGW
2 stops45h 05mChina Eastern
Deal found 14/10£505
Tue 18/1122:00LHR - CNX
1 stop36h 50mChina Southern
Sun 14/1218:50CNX - LHR
2 stops30h 45mChina Southern
Deal found 14/10£506
Thu 13/1110:30LGW - CNX
2 stops39h 35mChina Eastern
Sun 23/1115:35CNX - LGW
1 stop21h 55mChina Eastern
Deal found 12/10£509
Tue 25/1120:20LGW - CNX
2 stops38h 30mChina Southern
Thu 4/1218:50CNX - LGW
1 stop18h 30mChina Southern
Deal found 14/10£509
Tue 25/1120:20LGW - CNX
2 stops38h 30mChina Southern
Sun 7/1218:50CNX - LGW
1 stop18h 35mChina Southern
Deal found 13/10£510

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 15 October 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 20/11

10:30-14:20

1 stop20h 50m

Chiang Mai

Thu 27/11

16:25-06:30

2 stops21h 05m

£512

LondonChiang Mai

STN - CNX

STNCNX

London Stansted

Fri 21/11

06:10-21:40

3 stops32h 30m

Chiang Mai

Wed 17/12

18:15-16:40

3 stops29h 25m

£522

LondonChiang Mai

STN - CNX

STNCNX

London Stansted

Mon 2/3

13:35-22:20

2 stops25h 45m

Chiang Mai

Mon 23/3

18:15-15:45

3 stops28h 30m

£522

LondonChiang Mai

LGW - CNX

LGWCNX

London Gatwick

Tue 13/1

10:30-15:25

2 stops21h 55m

Chiang Mai

Fri 23/1

16:25-14:00

2 stops28h 35m

£524

LondonChiang Mai

STN - CNX

STNCNX

London Stansted

Sat 22/11

22:10-06:05

2 stops24h 55m

Chiang Mai

Sat 29/11

08:50-11:00

2 stops33h 10m

£528

LondonChiang Mai

LGW - CNX

LGWCNX

London Gatwick

Wed 19/11

10:30-09:05

2 stops39h 35m

Chiang Mai

Wed 3/12

16:25-06:30

3 stops45h 05m

£539

LondonChiang Mai

STN - CNX

STNCNX

London Stansted

Tue 18/11

08:40-21:55

3 stops30h 15m

Chiang Mai

Sun 30/11

08:05-16:50

3 stops39h 45m

£550

LondonChiang Mai

LGW - CNX

LGWCNX

London Gatwick

Tue 17/3

10:30-14:20

1 stop20h 50m

Chiang Mai

Sat 21/3

15:35-14:00

1 stop29h 25m

£562

LondonChiang Mai

STN - CNX

STNCNX

London Stansted

Tue 18/11

06:30-21:55

3 stops32h 25m

Chiang Mai

Sun 14/12

22:50-22:35

3 stops30h 45m

£572

LondonChiang Mai

STN - CNX

STNCNX

London Stansted

Wed 19/11

06:00-22:20

3 stops33h 20m

Chiang Mai

Sun 14/12

22:50-22:35

3 stops30h 45m

£574

Flights are sorted by cheapest return flights first.

Deals found on 14/10

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 10 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 71 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 £429). Flying from London to Chiang Mai in July is currently the most expensive (average of £654). 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 15 October 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 42% 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 £511.

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 47m.

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 15 October 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
1,250 reviews
Check prices

Boarding

8.4

Comfort

8.3

Overall

8.4

Crew

8.6

Entertainment

8.0

Food

8.0

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
EVA Air
8.4
Very Good
1,250 reviews
EVA Air
8.4
Very Good
1,250 reviews
Check prices

Boarding

8.4

Comfort

8.3

Overall

8.4

Crew

8.6

Entertainment

8.0

Food

8.0

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
Thai Airways
7.8
Good
358 reviews
EVA Air
8.4
Very Good
1,250 reviews
Check prices

Boarding

8.4

Comfort

8.3

Overall

8.4

Crew

8.6

Entertainment

8.0

Food

8.0

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
Etihad Airways
7.4
Good
1,279 reviews
EVA Air
8.4
Very Good
1,250 reviews
Check prices

Boarding

8.4

Comfort

8.3

Overall

8.4

Crew

8.6

Entertainment

8.0

Food

8.0

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
China Eastern
7.2
Good
168 reviews
EVA Air
8.4
Very Good
1,250 reviews
Check prices

Boarding

8.4

Comfort

8.3

Overall

8.4

Crew

8.6

Entertainment

8.0

Food

8.0

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount
Air China
7.2
Good
114 reviews
EVA Air
8.4
Very Good
1,250 reviews
Check prices

Boarding

8.4

Comfort

8.3

Overall

8.4

Crew

8.6

Entertainment

8.0

Food

8.0

Reviews

1 / 20
10.0
Excellent

Dale,May 2025

TPE - SFO

Flight staff were very courteous and efficient. Aircraft (seats, lavatories, etc) kept clean and replenished. Food service was timed perfectly and was delicious and had right amount

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 and SWISS fly from London to Chiang Mai in about 20h 50m. The time it takes to get you to your destination can typically vary by up to 40m. London and Chiang Mai are separated by a distance of 5594 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 £427, 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 38% 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 City - 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 £17.

  • 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 £429). Flying from London to Chiang Mai in July is currently the most expensive (average of £654). 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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Liverpool to Suvarnabhumi flights
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Heathrow to Hat Yai 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 15 October 2025.
AirlineCheapestAverageFlexibilityOn-time
China SouthernCheapest£427Average£472FlexibilityNo cancel feeOn-time69%
Search China Southern flights
China EasternCheapest£458Average£544FlexibilityNo cancel feeOn-time62%
Search China Eastern flights
Air ChinaCheapest£460Average£560FlexibilityNo cancel feeOn-time67%
Search Air China flights
Etihad AirwaysCheapest£544Average£673FlexibilityNo cancel feeOn-time75%
Search Etihad Airways flights
Malaysia AirlinesCheapest£558Average£796FlexibilityNo cancel feeOn-time67%
Search Malaysia Airlines flights
EVA AirCheapest£608Average£749FlexibilityNo cancel feeOn-time74%
Search EVA Air flights
Austrian AirlinesCheapest£617Average£779FlexibilityNo cancel feeOn-time78%
Search Austrian Airlines flights
Cathay PacificCheapest£686Average£863FlexibilityNo cancel feeOn-time72%
Search Cathay Pacific flights
Thai AirwaysCheapest£704Average£849FlexibilityNo cancel feeOn-time77%
Search Thai Airways flights
Singapore AirlinesCheapest£730Average£930FlexibilityNo 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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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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