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Cheap flights from the United Kingdom to Chiang Mai from £261

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 10/9. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — CNX
3 Sep — 10 Sep1
1 adult

Cheap 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 29 August 2025.

Round-trip from

£508

One-way from

£261

Popular in

August

Cheapest in

March

Average price

£980
5/11-3/12
  • 5/11-3/12
  • 3 total stops
  • 67h 30m total
  • United Kingdom to Chiang Mai
Search Deals
10/9
  • 10/9
  • 3 total stops
  • 59h 55m total
  • United Kingdom to Chiang Mai
Search Deals
Highest demand for flights based on searches. 16% potential increase in price (£97 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£21 potential savings vs. average return price).
Search Deals
Average for round-trip flights in August 2025
Search Deals

Find flight deals from United Kingdom to Chiang Mai

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 29 August 2025.

Wed 5/1107:15MAN - CNX
2 stops30h 45mMultiple Airlines
Wed 3/1220:30CNX - MAN
1 stop36h 45mMultiple Airlines
Deal found 27/8£508
Wed 5/1107:15MAN - CNX
2 stops30h 45mMultiple Airlines
Thu 4/1210:25CNX - MAN
1 stop22h 50mMultiple Airlines
Deal found 27/8£510
Wed 5/1117:40LHR - CNX
1 stop21h 10mAir China
Tue 2/1223:05CNX - LHR
2 stops51h 35mAir China
Deal found 28/8£517
Sun 19/1020:25LHR - CNX
1 stop19h 25mAir China
Tue 4/1123:05CNX - LHR
2 stops51h 35mAir China
Deal found 27/8£518
Tue 9/914:40LHR - CNX
2 stops21h 15mMultiple Airlines
Wed 1/1006:30CNX - LHR
2 stops36h 10mMultiple Airlines
Deal found 28/8£522
Tue 21/1022:00LHR - CNX
2 stops41h 50mAir China
Tue 4/1123:05CNX - LHR
1 stop25h 45mAir China
Deal found 27/8£524
Sun 2/1117:15LHR - CNX
2 stops41h 35mChina Southern
Mon 17/1118:50CNX - LHR
1 stop30h 25mChina Southern
Deal found 27/8£530
Fri 7/1117:00LGW - CNX
2 stops33h 05mChina Eastern
Tue 18/1115:35CNX - LGW
1 stop21h 55mChina Eastern
Deal found 28/8£531
Tue 21/1021:00LHR - CNX
2 stops38h 50mChina Southern
Thu 30/1018:50CNX - LHR
1 stop30h 25mChina Southern
Deal found 28/8£531
Mon 20/1022:40LHR - CNX
1 stop17h 10mAir China
Mon 3/1123:05CNX - LHR
1 stop23h 50mAir China
Deal found 28/8£531
Sun 2/1117:00LGW - CNX
2 stops33h 05mChina Eastern
Tue 18/1115:35CNX - LGW
1 stop21h 55mChina Eastern
Deal found 27/8£532
Tue 9/911:35LGW - CNX
1 stop19h 50mChina Eastern
Wed 1/1014:55CNX - LGW
1 stop30h 05mChina Eastern
Deal found 28/8£534

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 29 August 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

ManchesterChiang Mai

MAN - CNX

MANCNX

Manchester

Wed 5/11

07:15-21:00

2 stops30h 45m

Chiang Mai

Wed 3/12

20:30-02:15

1 stop36h 45m

£508

ManchesterChiang Mai

MAN - CNX

MANCNX

Manchester

Wed 5/11

07:15-21:00

2 stops30h 45m

Chiang Mai

Thu 4/12

10:25-02:15

1 stop22h 50m

£510

LondonChiang Mai

LHR - CNX

LHRCNX

London Heathrow

Wed 5/11

17:40-21:50

1 stop21h 10m

Chiang Mai

Tue 2/12

23:05-19:40

2 stops51h 35m

£517

LondonChiang Mai

LHR - CNX

LHRCNX

London Heathrow

Tue 9/9

14:40-17:55

2 stops21h 15m

Chiang Mai

Wed 1/10

06:30-12:40

2 stops36h 10m

£522

LondonChiang Mai

LHR - CNX

LHRCNX

London Heathrow

Sun 2/11

17:15-17:50

2 stops41h 35m

Chiang Mai

Sun 16/11

18:50-18:15

1 stop30h 25m

£530

LondonChiang Mai

LGW - CNX

LGWCNX

London Gatwick

Fri 7/11

17:00-09:05

2 stops33h 05m

Chiang Mai

Tue 18/11

15:35-06:30

1 stop21h 55m

£531

LondonChiang Mai

LHR - CNX

LHRCNX

London Heathrow

Mon 20/10

22:40-21:50

1 stop17h 10m

Chiang Mai

Sun 2/11

23:05-15:55

1 stop23h 50m

£531

LondonChiang Mai

LHR - CNX

LHRCNX

London Heathrow

Mon 20/10

22:40-21:50

1 stop17h 10m

Chiang Mai

Mon 3/11

23:05-15:55

1 stop23h 50m

£531

LondonChiang Mai

LGW - CNX

LGWCNX

London Gatwick

Mon 3/11

17:00-09:05

2 stops33h 05m

Chiang Mai

Tue 18/11

15:35-06:30

1 stop21h 55m

£532

LondonChiang Mai

LGW - CNX

LGWCNX

London Gatwick

Sun 2/11

17:00-09:05

2 stops33h 05m

Chiang Mai

Tue 18/11

15:35-06:30

1 stop21h 55m

£532

Flights are sorted by cheapest return flights first.

Deals found on 28/8

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, April is the cheapest month in which you can book a flight from United Kingdom to Chiang Mai (average of £776). Flying from United Kingdom to Chiang Mai in July is currently the most expensive (average of £1,347). 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 29 August 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from United Kingdom to Chiang Mai as you normally would.

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 29 August 2025.
See what other customers who have flown with EVA Air, Thai Airways, 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.
EVA Air
8.4
Very Good
1,235 reviews
Check prices

Comfort

8.3

Boarding

8.4

Crew

8.6

Food

8.1

Entertainment

8.0

Overall

8.4

Reviews

1 / 20
6.0
Good

Anonymous,Aug 2025

BKK - TPE

I bought tickets for myself and my friend and had to argue with the checkin person to get our seats together for the return flights I purchased the tickets together weeks ahead of time and did not expect to have to ask for a supervisor to sit together very disappointed in booking through kayak
EVA Air
8.4
Very Good
1,235 reviews
EVA Air
8.4
Very Good
1,235 reviews
Check prices

Comfort

8.3

Boarding

8.4

Crew

8.6

Food

8.1

Entertainment

8.0

Overall

8.4

Reviews

1 / 20
6.0
Good

Anonymous,Aug 2025

BKK - TPE

I bought tickets for myself and my friend and had to argue with the checkin person to get our seats together for the return flights I purchased the tickets together weeks ahead of time and did not expect to have to ask for a supervisor to sit together very disappointed in booking through kayak
Thai Airways
7.8
Good
345 reviews
EVA Air
8.4
Very Good
1,235 reviews
Check prices

Comfort

8.3

Boarding

8.4

Crew

8.6

Food

8.1

Entertainment

8.0

Overall

8.4

Reviews

1 / 20
6.0
Good

Anonymous,Aug 2025

BKK - TPE

I bought tickets for myself and my friend and had to argue with the checkin person to get our seats together for the return flights I purchased the tickets together weeks ahead of time and did not expect to have to ask for a supervisor to sit together very disappointed in booking through kayak
Etihad Airways
7.4
Good
1,241 reviews
EVA Air
8.4
Very Good
1,235 reviews
Check prices

Comfort

8.3

Boarding

8.4

Crew

8.6

Food

8.1

Entertainment

8.0

Overall

8.4

Reviews

1 / 20
6.0
Good

Anonymous,Aug 2025

BKK - TPE

I bought tickets for myself and my friend and had to argue with the checkin person to get our seats together for the return flights I purchased the tickets together weeks ahead of time and did not expect to have to ask for a supervisor to sit together very disappointed in booking through kayak
Air China
7.3
Good
95 reviews
EVA Air
8.4
Very Good
1,235 reviews
Check prices

Comfort

8.3

Boarding

8.4

Crew

8.6

Food

8.1

Entertainment

8.0

Overall

8.4

Reviews

1 / 20
6.0
Good

Anonymous,Aug 2025

BKK - TPE

I bought tickets for myself and my friend and had to argue with the checkin person to get our seats together for the return flights I purchased the tickets together weeks ahead of time and did not expect to have to ask for a supervisor to sit together very disappointed in booking through kayak
China Eastern
7.2
Good
164 reviews
EVA Air
8.4
Very Good
1,235 reviews
Check prices

Comfort

8.3

Boarding

8.4

Crew

8.6

Food

8.1

Entertainment

8.0

Overall

8.4

Reviews

1 / 20
6.0
Good

Anonymous,Aug 2025

BKK - TPE

I bought tickets for myself and my friend and had to argue with the checkin person to get our seats together for the return flights I purchased the tickets together weeks ahead of time and did not expect to have to ask for a supervisor to sit together very disappointed in booking through kayak

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 21h 10m. Air China provides one of the quickest options available for as low as £517. The distance between United Kingdom and Chiang Mai is about 5598 mi. Both multi-stop and direct flights can be found to your destination and back.

  • 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, April is the cheapest month in which you can book a flight from United Kingdom to Chiang Mai (average of £776). Flying from United Kingdom to Chiang Mai in July is currently the most expensive (average of £1,347). 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 29 August 2025.
AirlineCheapestAverageFlexibilityOn-time
China SouthernCheapest£417Average£465FlexibilityNo cancel feeOn-time69%
Search China Southern flights
China EasternCheapest£451Average£702FlexibilityNo cancel feeOn-time62%
Search China Eastern flights
Air ChinaCheapest£462Average£545FlexibilityNo cancel feeOn-time67%
Search Air China flights
Etihad AirwaysCheapest£535Average£748FlexibilityNo cancel feeOn-time75%
Search Etihad Airways flights
Malaysia AirlinesCheapest£550Average£789FlexibilityNo cancel feeOn-time67%
Search Malaysia Airlines flights
Cathay PacificCheapest£676Average£897FlexibilityNo cancel feeOn-time72%
Search Cathay Pacific flights
EVA AirCheapest£687Average£749FlexibilityNo cancel feeOn-time74%
Search EVA Air flights
Gulf AirCheapest£693Average£773FlexibilityNo cancel feeOn-time67%
Search Gulf Air flights
Thai AirwaysCheapest£693Average£837FlexibilityNo cancel feeOn-time77%
Search Thai Airways flights
LufthansaCheapest£699Average£741FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights

Fly with Cheapflights

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

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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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