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Cheap flights from the United Kingdom to Chiang Mai from £225

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 21/2. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — CNX
16 Mar — 23 Mar1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from United Kingdom to Chiang Mai

Enter your travel dates to find the best prices.

Cheapest flights from United Kingdom to Chiang Mai
Explore the most affordable flight options available from United Kingdom to Chiang Mai. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 14 February 2026.

Tue 10/317:40
LHR
-
CNX
1 stop21h 10m
Air China
Mon 16/323:05
CNX
-
LHR
1 stop25h 50m
Air China
Deal found 11/2£376
Sat 11/411:35
LGW
-
CNX
2 stops21h 45m
China Eastern
Sat 2/510:05
CNX
-
LGW
3 stops26h 35m
China Eastern
Deal found 10/2£386
Mon 18/512:35
LGW
-
CNX
1 stop27h 15m
Air China
Mon 15/623:05
CNX
-
LGW
1 stop37h 30m
Air China
Deal found 10/2£387
Tue 10/320:25
LHR
-
CNX
1 stop18h 25m
Air China
Mon 23/323:05
CNX
-
LHR
1 stop23h 50m
Air China
Deal found 12/2£387
Mon 18/520:25
LHR
-
CNX
1 stop19h 25m
Air China
Thu 28/523:05
CNX
-
LHR
1 stop27h 20m
Air China
Deal found 12/2£388
Mon 18/511:35
LGW
-
CNX
2 stops39h 40m
China Eastern
Thu 28/516:20
CNX
-
LGW
2 stops28h 50m
China Eastern
Deal found 12/2£389
Fri 6/310:30
LGW
-
CNX
3 stops39h 35m
China Eastern
Tue 24/310:05
CNX
-
LGW
3 stops51h 25m
China Eastern
Deal found 13/2£393
Wed 22/420:25
LHR
-
CNX
1 stop19h 25m
Air China
Tue 19/523:05
CNX
-
LHR
1 stop24h 35m
Air China
Deal found 11/2£394
Wed 11/317:40
LHR
-
CNX
1 stop21h 10m
Air China
Mon 23/323:05
CNX
-
LHR
1 stop25h 50m
Air China
Deal found 12/2£395
Tue 21/411:35
LGW
-
CNX
1 stop19h 50m
China Eastern
Sun 17/514:55
CNX
-
LGW
1 stop30h 15m
China Eastern
Deal found 10/2£396
Fri 29/522:40
LHR
-
CNX
1 stop17h 10m
Air China
Mon 8/623:05
CNX
-
LHR
1 stop27h 20m
Air China
Deal found 12/2£397
Fri 30/1009:25
LGW
-
CNX
1 stop22h 15m
Multiple Airlines
Fri 13/1115:10
CNX
-
LGW
1 stop22h 15m
Multiple Airlines
Deal found 11/2£399

Find flight deals from United Kingdom to Chiang Mai

Keep the following information in mind while searching for United Kingdom to Chiang Mai flight deals. Data was last updated 14 February 2026.

Round-trip from

£376

One-way from

£225

Popular in

August

Cheapest in

May

Average price

£596
Air China
  • Air China
  • 10/3-16/3
  • 2 total stops
  • 47h 00m total
  • United Kingdom to Chiang Mai
Search Deals
21/2
  • 21/2
  • 3 total stops
  • 42h 55m total
  • United Kingdom to Chiang Mai
Search Deals
Highest demand for flights based on searches. 19% potential increase in price (£116 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£20 potential savings vs. average return price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from United Kingdom 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 14 February 2026.
Use the filters below to find and compare flights from the United Kingdom to Chiang Mai that are best for you.

Fly from

United Kingdom

Fly to

Chiang Mai

Route

Depart

Return

Price

LondonChiang Mai

LGW - CNX

LGWCNX

London Gatwick

Tue 21/4

11:35-13:25

1 stop19h 50m

Chiang Mai

Mon 18/5

10:05-15:00

2 stops34h 55m

£402

LondonChiang Mai

LGW - CNX

LGWCNX

London Gatwick

Tue 19/5

18:00-13:25

1 stop37h 25m

Chiang Mai

Sat 13/6

16:20-15:10

2 stops52h 50m

£402

LondonChiang Mai

LHR - CNX

LHRCNX

London Heathrow

Tue 21/4

21:20-09:15

2 stops29h 55m

Chiang Mai

Thu 14/5

14:55-18:40

1 stop33h 45m

£430

LondonChiang Mai

LHR - CNX

LHRCNX

London Heathrow

Sat 2/5

21:20-09:15

2 stops29h 55m

Chiang Mai

Sun 17/5

10:05-18:40

2 stops38h 35m

£435

LondonChiang Mai

LHR - CNX

LHRCNX

London Heathrow

Tue 12/5

21:20-15:20

2 stops36h 00m

Chiang Mai

Mon 1/6

10:05-18:40

3 stops38h 35m

£436

LondonChiang Mai

LHR - CNX

LHRCNX

London Heathrow

Tue 21/4

21:20-09:15

2 stops29h 55m

Chiang Mai

Fri 15/5

16:20-18:40

2 stops32h 20m

£436

LondonChiang Mai

LGW - CNX

LGWCNX

London Gatwick

Sun 5/7

10:25-15:10

1 stop22h 45m

Chiang Mai

Wed 12/8

15:40-07:30

1 stop21h 50m

£445

LondonChiang Mai

LGW - CNX

LGWCNX

London Gatwick

Sun 17/5

19:00-13:25

1 stop36h 25m

Chiang Mai

Mon 15/6

14:55-15:00

1 stop30h 05m

£462

LondonChiang Mai

LGW - CNX

LGWCNX

London Gatwick

Sat 6/6

18:00-13:25

1 stop37h 25m

Chiang Mai

Sun 28/6

14:55-15:10

1 stop30h 15m

£462

LondonChiang Mai

LGW - CNX

LGWCNX

London Gatwick

Tue 19/5

18:00-13:25

1 stop37h 25m

Chiang Mai

Fri 12/6

14:55-06:40

1 stop21h 45m

£462

Flights are sorted by cheapest return flights first.

Deals found on 11/2

Showing 1-10 of 60 results
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Best time to book a flight from United Kingdom to Chiang Mai

Have a flexible travel schedule? Discover the best time to fly to Chiang Mai from United Kingdom 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 the United Kingdom to Chiang Mai

What is the cheapest month to book a flight from United Kingdom to Chiang Mai?

Currently, January is the cheapest month in which you can book a flight from United Kingdom to Chiang Mai (average of £356). Flying from United Kingdom to Chiang Mai in July is currently the most expensive (average of £627). 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.

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 14 February 2026.
See what other customers who have flown with Thai Airways, Cathay Pacific, andEtihad Airways from the United Kingdom 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.
Thai Airways
7.8
Good
382 reviews
Check prices

Food

7.4

Boarding

7.9

Crew

8.4

Comfort

7.6

Overall

7.8

Entertainment

6.8

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
Thai Airways
7.8
Good
382 reviews
Thai Airways
7.8
Good
382 reviews
Check prices

Food

7.4

Boarding

7.9

Crew

8.4

Comfort

7.6

Overall

7.8

Entertainment

6.8

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
Cathay Pacific
7.6
Good
1,162 reviews
Thai Airways
7.8
Good
382 reviews
Check prices

Food

7.4

Boarding

7.9

Crew

8.4

Comfort

7.6

Overall

7.8

Entertainment

6.8

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
Etihad Airways
7.3
Good
1,394 reviews
Thai Airways
7.8
Good
382 reviews
Check prices

Food

7.4

Boarding

7.9

Crew

8.4

Comfort

7.6

Overall

7.8

Entertainment

6.8

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
China Eastern
7.2
Good
192 reviews
Thai Airways
7.8
Good
382 reviews
Check prices

Food

7.4

Boarding

7.9

Crew

8.4

Comfort

7.6

Overall

7.8

Entertainment

6.8

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
Air China
7.2
Good
139 reviews
Thai Airways
7.8
Good
382 reviews
Check prices

Food

7.4

Boarding

7.9

Crew

8.4

Comfort

7.6

Overall

7.8

Entertainment

6.8

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 United Kingdom 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 United Kingdom?

    If you book a flight to Chiang Mai from United Kingdom, you will be flying to Chiang Mai, which is the city’s only airport. Chiang Mai (CNX) is located 1.9 mi from the center of Chiang Mai.

  • How long is the flight from United Kingdom to Chiang Mai?

    A quick flight from United Kingdom to Chiang Mai can take about 19h 50m. China Eastern provides one of the quickest options available for as low as £402. The distance between United Kingdom and Chiang Mai is about 5594 mi. Both multi-stop and direct flights can be found to your destination and back.

  • What are the cheapest airlines to fly from United Kingdom to Chiang Mai one-way?

    For one-way options, check prices for China Eastern. According to our data, you can fly for as low as £242. Users have also found prices from £294 and £325 on Air China and Malaysia Airlines, respectively.

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

    Most travelers choose London Heathrow - Chiang Mai, London Gatwick - Chiang Mai or London Stansted - Chiang Mai when deciding on the best route from United Kingdom to Chiang Mai.

  • Can I find deals for flights from United Kingdom to Chiang Mai that include hotel bookings?

    Yes. In addition to deals on United Kingdom to Chiang Mai flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from United Kingdom to Chiang Mai?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from United Kingdom to Chiang Mai.

  • Can I find deals for business class flights from United Kingdom to Chiang Mai?

    Yes. Cheapflights offers flight deals from United Kingdom 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 United Kingdom to Chiang Mai?

    Currently, January is the cheapest month in which you can book a flight from United Kingdom to Chiang Mai (average of £356). Flying from United Kingdom to Chiang Mai in July is currently the most expensive (average of £627). 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

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Alternative routes for United Kingdom to Chiang Mai

See prices for flight routes from nearby airports that may be better suited for you.
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Top 10 airlines flying from United Kingdom to Chiang Mai

Discover the top 10 airlines that operate flights from United Kingdom 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 14 February 2026.
AirlineCheapestAverageFlexibilityOn-time
China EasternCheapest£371Average£524FlexibilityNo cancel feeOn-time62%
Search China Eastern flights
Air ChinaCheapest£397Average£512FlexibilityNo cancel feeOn-time67%
Search Air China flights
Malaysia AirlinesCheapest£502Average£767FlexibilityNo cancel feeOn-time67%
Search Malaysia Airlines flights
Etihad AirwaysCheapest£529Average£675FlexibilityNo cancel feeOn-time75%
Search Etihad Airways flights
Austrian AirlinesCheapest£550Average£603FlexibilityNo cancel feeOn-time78%
Search Austrian Airlines flights
LufthansaCheapest£591Average£731FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
EVA AirCheapest£593Average£856FlexibilityNo cancel feeOn-time74%
Search EVA Air flights
Cathay PacificCheapest£630Average£813FlexibilityNo cancel feeOn-time72%
Search Cathay Pacific flights
Thai AirwaysCheapest£696Average£886FlexibilityNo cancel feeOn-time77%
Search Thai Airways flights
Singapore AirlinesCheapest£764Average£878FlexibilityNo cancel feeOn-time81%
Search Singapore Airlines flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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

Cheapflights helps you search for flights from United Kingdom to Chiang Mai via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

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

Cheapflights helps you find that perfect flight to Chiang Mai from United Kingdom by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

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

Need flexible booking options for your flight to Chiang Mai from United Kingdom? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

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

Yes, Cheapflights offers price alerts on United Kingdom to Chiang Mai flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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