Cheap flights from London to Chiang Mai from £247

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 2/9. Fares are subject to change and may not be available on all flights or dates of travel.
LON — CNX
12 Aug — 19 Aug1
1 adult
1 adult, Economy, 0 bags

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 13 July 2026.

Fri 28/820:20
LGW
-
CNX
1 stop19h 30m
Multiple Airlines
Mon 7/906:35
CNX
-
LGW
2 stops30h 00m
Multiple Airlines
Deal found 10/7£609
Sun 6/1217:00
LGW
-
CNX
2 stops33h 05m
China Eastern
Sun 17/115:35
CNX
-
LGW
1 stop29h 25m
China Eastern
Deal found 9/7£610
Sat 5/909:30
LHR
-
CNX
2 stops27h 40m
Multiple Airlines
Sat 19/920:00
CNX
-
LHR
2 stops28h 45m
Multiple Airlines
Deal found 11/7£610
Sat 3/1021:45
LHR
-
CNX
2 stops31h 30m
Etihad Airways
Sat 17/1020:00
CNX
-
LHR
2 stops28h 45m
Etihad Airways
Deal found 9/7£612
Tue 17/1117:40
LHR
-
CNX
1 stop21h 10m
Air China
Sun 29/1123:05
CNX
-
LHR
1 stop23h 50m
Air China
Deal found 9/7£613
Sat 14/1120:25
LHR
-
CNX
1 stop18h 25m
Air China
Sun 22/1123:05
CNX
-
LHR
1 stop23h 50m
Air China
Deal found 8/7£614
Sat 31/1017:40
LHR
-
CNX
1 stop21h 10m
Air China
Sat 14/1123:05
CNX
-
LHR
1 stop25h 45m
Air China
Deal found 10/7£615
Sat 3/1014:45
LHR
-
CNX
2 stops22h 25m
Etihad Airways
Tue 6/1020:00
CNX
-
LHR
2 stops22h 45m
Etihad Airways
Deal found 9/7£615
Wed 18/1117:00
LGW
-
CNX
1 stop38h 20m
China Eastern
Sat 28/1115:35
CNX
-
LGW
1 stop29h 25m
China Eastern
Deal found 9/7£616
Sat 14/1117:00
LGW
-
CNX
1 stop38h 20m
China Eastern
Sat 21/1115:35
CNX
-
LGW
1 stop29h 25m
China Eastern
Deal found 8/7£617
Sat 26/920:45
LHR
-
CNX
2 stops30h 35m
Etihad Airways
Sun 4/1020:00
CNX
-
LHR
2 stops28h 45m
Etihad Airways
Deal found 11/7£617
Wed 16/913:10
LCY
-
CNX
2 stops18h 35m
SWISS
Tue 27/1010:10
CNX
-
LCY
2 stops29h 30m
SWISS
Deal found 8/7£618

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 13 July 2026.

Round-trip from

£609

One-way from

£247

Popular in

December

Cheapest in

May

Average price

£869
28/8-7/9
  • 28/8-7/9
  • 3 total stops
  • 49h 30m total
  • London to Chiang Mai
Air China
  • Air China
  • 2/9
  • 1 total stop
  • 19h 25m total
  • London to Chiang Mai
High demand for flights, 0% potential price rise
Cheapest flight prices on average. 2% potential price decrease (£15 potential savings vs. average return price).
Average for round-trip flights in July 2026

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 July 2026.
Use the filters below to find and compare flights from London to Chiang Mai that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonChiang Mai

LHR - CNX

LHRCNX

London Heathrow

Wed 18/11

21:00-15:25

2 stops35h 25m

Chiang Mai

Thu 26/11

10:05-17:30

2 stops38h 25m

£632

LondonChiang Mai

LGW - CNX

LGWCNX

London Gatwick

Sun 2/8

11:35-13:25

1 stop19h 50m

Chiang Mai

Tue 18/8

14:55-19:10

1 stop34h 15m

£643

LondonChiang Mai

LGW - CNX

LGWCNX

London Gatwick

Sun 2/8

22:00-13:25

1 stop33h 25m

Chiang Mai

Sun 16/8

16:10-15:00

2 stops28h 50m

£648

LondonChiang Mai

LTN - CNX

LTNCNX

London Luton

Wed 19/8

05:40-21:50

2 stops34h 10m

Chiang Mai

Wed 26/8

13:15-11:00

3 stops27h 45m

£651

LondonChiang Mai

LTN - CNX

LTNCNX

London Luton

Mon 2/11

15:05-22:20

3 stops24h 15m

Chiang Mai

Sun 15/11

08:50-21:05

2 stops19h 15m

£688

LondonChiang Mai

LTN - CNX

LTNCNX

London Luton

Fri 21/8

07:05-11:20

2 stops22h 15m

Chiang Mai

Sat 29/8

06:35-21:55

3 stops45h 20m

£701

LondonChiang Mai

LGW - CNX

LGWCNX

London Gatwick

Sun 9/8

22:00-08:10

3 stops28h 10m

Chiang Mai

Tue 11/8

00:30-15:00

1 stop20h 30m

£730

LondonChiang Mai

LHR - CNX

LHRCNX

London Heathrow

Sun 9/8

21:20-23:20

1 stop20h 00m

Chiang Mai

Tue 11/8

00:30-18:40

1 stop24h 10m

£752

LondonChiang Mai

LTN - CNX

LTNCNX

London Luton

Mon 17/8

06:00-10:25

3 stops22h 25m

Chiang Mai

Mon 31/8

19:30-22:50

3 stops33h 20m

£765

LondonChiang Mai

LTN - CNX

LTNCNX

London Luton

Sun 9/8

07:15-17:15

3 stops28h 00m

Chiang Mai

Sun 23/8

13:15-14:35

3 stops31h 20m

£773

Flights are sorted by cheapest return flights first.

Deals found on 9/7

Showing 1-10 of 60 resultsSorted by cheapest first
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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

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 £242). Flying from London to Chiang Mai in August is currently the most expensive (average of £449). 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.

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.

Shanghai (PVG) – chosen by Cheapflights users on 28% 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.

Shanghai (PVG) is the most affordable one-stop option, with an average return flight price of £450.

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.

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

To ensure you get the cheapest price possible for a flight from London to Chiang Mai, you should look to book at least 48 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.

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 July 2026.
See what other customers who have flown with Thai Airways,Cathay Pacific, andAir China 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.

Entertainment

6.9

Boarding

7.9

Food

7.4

Comfort

7.7

Crew

8.4

Overall

7.9

Reviews

1 / 20
10.0
Excellent

Virendra,Jan 2026

DEL - BKK

Having required wheel chair assistance, I received amazing service from the ground and cabin staff. Everything was a breeze. Flight was comfortable but the entertainment system was quite dated. The chicken noodles served was amazing

Entertainment

6.9

Boarding

7.9

Food

7.4

Comfort

7.7

Crew

8.4

Overall

7.9

Reviews

1 / 20
10.0
Excellent

Virendra,Jan 2026

DEL - BKK

Having required wheel chair assistance, I received amazing service from the ground and cabin staff. Everything was a breeze. Flight was comfortable but the entertainment system was quite dated. The chicken noodles served was amazing

Entertainment

6.9

Boarding

7.9

Food

7.4

Comfort

7.7

Crew

8.4

Overall

7.9

Reviews

1 / 20
10.0
Excellent

Virendra,Jan 2026

DEL - BKK

Having required wheel chair assistance, I received amazing service from the ground and cabin staff. Everything was a breeze. Flight was comfortable but the entertainment system was quite dated. The chicken noodles served was amazing

Entertainment

6.9

Boarding

7.9

Food

7.4

Comfort

7.7

Crew

8.4

Overall

7.9

Reviews

1 / 20
10.0
Excellent

Virendra,Jan 2026

DEL - BKK

Having required wheel chair assistance, I received amazing service from the ground and cabin staff. Everything was a breeze. Flight was comfortable but the entertainment system was quite dated. The chicken noodles served was amazing

Entertainment

6.9

Boarding

7.9

Food

7.4

Comfort

7.7

Crew

8.4

Overall

7.9

Reviews

1 / 20
10.0
Excellent

Virendra,Jan 2026

DEL - BKK

Having required wheel chair assistance, I received amazing service from the ground and cabin staff. Everything was a breeze. Flight was comfortable but the entertainment system was quite dated. The chicken noodles served was amazing

Entertainment

6.9

Boarding

7.9

Food

7.4

Comfort

7.7

Crew

8.4

Overall

7.9

Reviews

1 / 20
10.0
Excellent

Virendra,Jan 2026

DEL - BKK

Having required wheel chair assistance, I received amazing service from the ground and cabin staff. Everything was a breeze. Flight was comfortable but the entertainment system was quite dated. The chicken noodles served was amazing

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 7 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, Emirates, 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 35h 45m. London and Chiang Mai are separated by a distance of 5577 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 £362, was found to be the cheapest airline from London to Chiang Mai.Alternate airlines flying return to your destination include Air China and Malaysia Airlines. China Eastern is priced at 46% 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 Eastern, which is currently one of the cheapest options available, starting at £242. Air China flights start at £279 while deals on Thai Airways start at £506 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 Shanghai?

    Most Shanghai visitors opt to spend their time experiencing People's Square, Shanghai Disneyland, and Shanghai Dianchun Hall. Travelers on a layover in Shanghai can visit People's Square, Shanghai Disneyland, and Shanghai Dianchun Hall, by traveling 20.3 mi, 8.7 mi, and 19.4 mi, respectively after landing at Shanghai Pu Dong.

  • 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 £242). Flying from London to Chiang Mai in August is currently the most expensive (average of £449). 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 7 airlines flying from London to Chiang Mai

Discover the top 7 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 July 2026.
AirlineCheapestAverageFlexibilityOn-time
China EasternCheapest£362Average£506FlexibilityNo cancel feeOn-time62%
Search China Eastern flights
Air ChinaCheapest£393Average£499FlexibilityNo cancel feeOn-time67%
Search Air China flights
Malaysia AirlinesCheapest£508Average£618FlexibilityNo cancel feeOn-time67%
Search Malaysia Airlines flights
Etihad AirwaysCheapest£533Average£641FlexibilityNo cancel feeOn-time75%
Search Etihad Airways flights
Austrian AirlinesCheapest£559Average£694FlexibilityNo cancel feeOn-time78%
Search Austrian Airlines flights
EVA AirCheapest£749Average£873FlexibilityNo cancel feeOn-time74%
Search EVA Air flights
Thai AirwaysCheapest£766Average£936FlexibilityNo 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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Why should you use Cheapflights to find cheap flight tickets 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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