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Cheap flights from the United Kingdom to Chiang Mai from £289

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 10/1. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — CNX
11 Jan — 18 Jan1
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 12 December 2025.

Fri 26/1217:00LGW - CNX
1 stop38h 20mChina Eastern
Sun 18/115:35CNX - LGW
1 stop29h 25mChina Eastern
Deal found 10/12£758
Sat 13/1206:45LGW - CNX
2 stops27h 15mMultiple Airlines
Tue 16/1222:50CNX - LGW
1 stop26h 40mMultiple Airlines
Deal found 12/12£762
Sat 13/1206:45LGW - CNX
2 stops27h 15mMultiple Airlines
Wed 17/1208:05CNX - LGW
1 stop17h 25mMultiple Airlines
Deal found 12/12£768
Mon 15/1219:55STN - CNX
2 stops35h 25mMultiple Airlines
Sat 10/108:50CNX - STN
2 stops20h 45mMultiple Airlines
Deal found 11/12£786
Mon 15/1211:25LGW - CNX
1 stop17h 25mMultiple Airlines
Tue 16/1222:50CNX - LGW
1 stop26h 40mMultiple Airlines
Deal found 12/12£795
Sat 13/1206:45LGW - CNX
2 stops27h 15mMultiple Airlines
Mon 15/1208:05CNX - LGW
1 stop17h 25mMultiple Airlines
Deal found 12/12£798
Mon 15/1211:25LGW - CNX
1 stop17h 25mMultiple Airlines
Wed 17/1208:05CNX - LGW
1 stop17h 25mMultiple Airlines
Deal found 12/12£802
Thu 11/1206:45LGW - CNX
2 stops32h 05mMultiple Airlines
Tue 23/1215:55CNX - LGW
2 stops20h 40mMultiple Airlines
Deal found 10/12£810
Sun 14/1216:10LGW - CNX
1 stop22h 45mMultiple Airlines
Wed 17/1208:05CNX - LGW
1 stop17h 25mMultiple Airlines
Deal found 12/12£813
Fri 26/1221:00LHR - CNX
2 stops29h 05mMultiple Airlines
Sun 18/108:50CNX - LHR
1 stop16h 20mMultiple Airlines
Deal found 10/12£823
Sun 14/1216:10LGW - CNX
1 stop14h 25mMultiple Airlines
Tue 16/1222:50CNX - LGW
1 stop26h 40mMultiple Airlines
Deal found 12/12£834
Tue 16/1216:00LGW - CNX
1 stop14h 35mMultiple Airlines
Fri 19/1216:25CNX - LGW
2 stops28h 35mMultiple Airlines
Deal found 12/12£839

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 12 December 2025.

Round-trip from

£420

One-way from

£289

Popular in

August

Cheapest in

March

Average price

£892
China Eastern
  • China Eastern
  • 28/1-2/3
  • 3 total stops
  • 72h 45m total
  • United Kingdom to Chiang Mai
Search Deals
10/1
  • 10/1
  • 3 total stops
  • 59h 50m total
  • United Kingdom to Chiang Mai
Search Deals
Highest demand for flights based on searches. 18% potential increase in price (£120 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£22 potential savings vs. average return price).
Search Deals
Average for round-trip flights in December 2025
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 12 December 2025.
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

BelfastChiang Mai

BFS - CNX

BFSCNX

Belfast Intl

Mon 19/1

06:30-14:20

2 stops48h 50m

Chiang Mai

Thu 29/1

15:35-22:20

2 stops37h 45m

£427

LondonChiang Mai

LGW - CNX

LGWCNX

London Gatwick

Tue 10/2

10:30-22:20

1 stop28h 50m

Chiang Mai

Tue 17/2

15:35-14:00

1 stop29h 25m

£446

LondonChiang Mai

LGW - CNX

LGWCNX

London Gatwick

Wed 14/1

17:00-14:20

1 stop38h 20m

Chiang Mai

Sat 24/1

15:35-14:00

1 stop29h 25m

£452

LondonChiang Mai

LHR - CNX

LHRCNX

London Heathrow

Sun 25/1

17:40-21:50

1 stop21h 10m

Chiang Mai

Sun 1/2

23:05-17:50

1 stop25h 45m

£457

LondonChiang Mai

LHR - CNX

LHRCNX

London Heathrow

Mon 26/1

17:40-21:50

1 stop21h 10m

Chiang Mai

Sun 22/3

23:05-15:55

1 stop23h 50m

£462

LondonChiang Mai

LHR - CNX

LHRCNX

London Heathrow

Sun 1/3

20:25-21:50

1 stop18h 25m

Chiang Mai

Wed 18/3

23:05-15:55

1 stop23h 50m

£462

Newcastle upon TyneChiang Mai

NCL - CNX

NCLCNX

Newcastle upon Tyne

Sat 10/1

16:50-14:20

2 stops38h 30m

Chiang Mai

Thu 22/1

15:35-22:20

2 stops37h 45m

£474

LondonChiang Mai

LHR - CNX

LHRCNX

London Heathrow

Thu 19/2

21:00-22:20

1 stop18h 20m

Chiang Mai

Thu 5/3

16:25-17:30

2 stops32h 05m

£481

LondonChiang Mai

LHR - CNX

LHRCNX

London Heathrow

Sat 10/1

21:00-14:20

1 stop34h 20m

Chiang Mai

Sat 17/1

08:50-18:10

1 stop16h 20m

£487

LondonChiang Mai

LHR - CNX

LHRCNX

London Heathrow

Mon 26/1

17:40-21:50

1 stop21h 10m

Chiang Mai

Wed 4/3

23:05-15:55

1 stop23h 50m

£494

Flights are sorted by cheapest return flights first.

Deals found on 10/12

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, October is the cheapest month in which you can book a flight from United Kingdom to Chiang Mai (average of £423). Flying from United Kingdom to Chiang Mai in July is currently the most expensive (average of £638). 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 GB to CNX?

Find hourly flight availability from United Kingdom 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 12 December 2025.

It’s typically best to fly out from United Kingdom to Chiang Mai in the evening. Doing so could potentially save you 34% on the flight price compared to flying at midday, which is usually more expensive.

What is the cheapest day to fly from United Kingdom to Chiang Mai?

Use this chart to determine the cheapest time to fly return from United Kingdom to Chiang Mai. Price data was last updated on 16 December 2024.

Travellers seeking maximum savings on their United Kingdom to Chiang Mai flight should consider departing on Sunday evenings when fares are most often at their lowest. Tuesday at midday flights should be avoided if possible as fares are typically the most expensive at this time.

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 12 December 2025.
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
366 reviews
Check prices

Overall

7.8

Boarding

7.9

Comfort

7.5

Entertainment

6.9

Food

7.3

Crew

8.3

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.
Thai Airways
7.8
Good
366 reviews
Thai Airways
7.8
Good
366 reviews
Check prices

Overall

7.8

Boarding

7.9

Comfort

7.5

Entertainment

6.9

Food

7.3

Crew

8.3

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.
Cathay Pacific
7.6
Good
1,095 reviews
Thai Airways
7.8
Good
366 reviews
Check prices

Overall

7.8

Boarding

7.9

Comfort

7.5

Entertainment

6.9

Food

7.3

Crew

8.3

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.
Etihad Airways
7.4
Good
1,331 reviews
Thai Airways
7.8
Good
366 reviews
Check prices

Overall

7.8

Boarding

7.9

Comfort

7.5

Entertainment

6.9

Food

7.3

Crew

8.3

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.
China Eastern
7.2
Good
178 reviews
Thai Airways
7.8
Good
366 reviews
Check prices

Overall

7.8

Boarding

7.9

Comfort

7.5

Entertainment

6.9

Food

7.3

Crew

8.3

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.
Air China
7.2
Good
127 reviews
Thai Airways
7.8
Good
366 reviews
Check prices

Overall

7.8

Boarding

7.9

Comfort

7.5

Entertainment

6.9

Food

7.3

Crew

8.3

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 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 14h 40m. China Eastern provides one of the quickest options available for as low as £565. The distance between United Kingdom and Chiang Mai is about 5627 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 £297. Users have also found prices from £310 and £348 on Air China and Etihad Airways, 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, October is the cheapest month in which you can book a flight from United Kingdom to Chiang Mai (average of £423). Flying from United Kingdom to Chiang Mai in July is currently the most expensive (average of £638). 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 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 12 December 2025.
AirlineCheapestAverageFlexibilityOn-time
China SouthernCheapest£421Average£525FlexibilityNo cancel feeOn-time69%
Search China Southern flights
Air ChinaCheapest£427Average£578FlexibilityNo cancel feeOn-time67%
Search Air China flights
China EasternCheapest£455Average£653FlexibilityNo cancel feeOn-time62%
Search China Eastern flights
Etihad AirwaysCheapest£531Average£699FlexibilityNo cancel feeOn-time75%
Search Etihad Airways flights
Malaysia AirlinesCheapest£553Average£784FlexibilityNo cancel feeOn-time67%
Search Malaysia Airlines flights
Austrian AirlinesCheapest£559Average£657FlexibilityNo cancel feeOn-time78%
Search Austrian Airlines flights
EVA AirCheapest£604Average£744FlexibilityNo cancel feeOn-time74%
Search EVA Air flights
Singapore AirlinesCheapest£634Average£882FlexibilityNo cancel feeOn-time81%
Search Singapore Airlines flights
Cathay PacificCheapest£641Average£826FlexibilityNo cancel feeOn-time72%
Search Cathay Pacific flights
LufthansaCheapest£656Average£754FlexibilityNo cancel feeOn-time76%
Search Lufthansa 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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