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Cheap flights from the United Kingdom to Chiang Mai from £263

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 29/9. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — CNX
18 Jun — 25 Jun1
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 13 June 2025.

Round-trip from

£550

One-way from

£263

Popular in

July

Cheapest in

March

Average price

£679
China Eastern
  • China Eastern
  • 13/11-29/11
  • 2 total stops
  • 42h 45m total
  • United Kingdom to Chiang Mai
Search Deals
29/9
  • 29/9
  • 3 total stops
  • 25h 45m total
  • United Kingdom to Chiang Mai
Search Deals
Highest demand for flights based on searches. 21% potential increase in price (£143 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 June 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 13 June 2025.

Fri 13/611:35LGW - CNX
3 stops39h 30mChina Eastern
Thu 26/610:05CNX - LGW
3 stops35h 05mChina Eastern
Deal found 12/6£549
Sat 15/1121:00LHR - CNX
1 stop34h 20mChina Eastern
Sun 30/1115:35CNX - LHR
1 stop32h 55mChina Eastern
Deal found 12/6£553
Sun 30/1116:00LGW - CNX
1 stop14h 25mMultiple Airlines
Thu 4/1208:05CNX - LGW
1 stop17h 20mMultiple Airlines
Deal found 12/6£553
Tue 24/614:35LTN - CNX
3 stops25h 20mMultiple Airlines
Tue 22/706:30CNX - LTN
3 stops41h 15mMultiple Airlines
Deal found 11/6£555
Mon 29/1220:25LHR - CNX
2 stops28h 05mMultiple Airlines
Wed 14/106:35CNX - LHR
2 stops44h 05mMultiple Airlines
Deal found 12/6£556
Sat 22/1110:25LHR - CNX
1 stop18h 00mMalaysia Airlines
Sat 6/1214:50CNX - LHR
1 stop31h 35mMalaysia Airlines
Deal found 11/6£557
Fri 14/1121:10LHR - CNX
2 stops41h 40mAir China
Sun 30/1123:05CNX - LHR
2 stops51h 35mAir China
Deal found 12/6£559
Thu 11/908:30LCY - CNX
2 stops24h 45mMultiple Airlines
Wed 24/908:00CNX - LCY
2 stops32h 05mMultiple Airlines
Deal found 12/6£578
Tue 26/813:05LCY - CNX
2 stops18h 40mSWISS
Sun 28/920:00CNX - LCY
2 stops42h 50mSWISS
Deal found 13/6£581
Tue 25/1111:40LGW - CNX
2 stops51h 10mAir China
Wed 3/1223:05CNX - LGW
1 stop37h 30mAir China
Deal found 12/6£587
Wed 5/1122:00LHR - CNX
1 stop36h 50mChina Southern
Fri 5/1218:50CNX - LHR
1 stop30h 25mChina Southern
Deal found 11/6£606
Mon 1/917:45MAN - CNX
2 stops19h 25mLufthansa
Mon 27/1019:45CNX - MAN
2 stops21h 45mLufthansa
Deal found 11/6£610

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 13 June 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

LondonChiang Mai

LGW - CNX

LGWCNX

London Gatwick

Thu 13/11

10:30-14:20

1 stop20h 50m

Chiang Mai

Sat 29/11

15:35-06:30

1 stop21h 55m

£550

LondonChiang Mai

LHR - CNX

LHRCNX

London Heathrow

Sat 15/11

21:00-14:20

1 stop34h 20m

Chiang Mai

Sat 29/11

15:35-17:30

1 stop32h 55m

£553

LondonChiang Mai

LGW - CNX

LGWCNX

London Gatwick

Sun 30/11

16:00-13:25

1 stop14h 25m

Chiang Mai

Thu 4/12

08:05-18:25

1 stop17h 20m

£553

LondonChiang Mai

LTN - CNX

LTNCNX

London Luton

Tue 24/6

14:35-21:55

3 stops25h 20m

Chiang Mai

Tue 22/7

06:30-17:45

3 stops41h 15m

£555

LondonChiang Mai

LHR - CNX

LHRCNX

London Heathrow

Sat 22/11

10:25-11:25

1 stop18h 00m

Chiang Mai

Sat 6/12

14:50-15:25

1 stop31h 35m

£557

LondonChiang Mai

LHR - CNX

LHRCNX

London Heathrow

Fri 14/11

21:10-21:50

2 stops41h 40m

Chiang Mai

Sun 30/11

23:05-19:40

2 stops51h 35m

£559

LondonChiang Mai

LHR - CNX

LHRCNX

London Heathrow

Fri 14/11

17:40-22:20

2 stops21h 40m

Chiang Mai

Sun 30/11

08:25-15:55

2 stops38h 30m

£561

LondonChiang Mai

LCY - CNX

LCYCNX

London City

Thu 11/9

08:30-15:15

2 stops24h 45m

Chiang Mai

Wed 24/9

08:00-10:05

2 stops32h 05m

£578

LondonChiang Mai

LCY - CNX

LCYCNX

London City

Tue 26/8

13:05-13:45

2 stops18h 40m

Chiang Mai

Sun 28/9

20:00-08:50

2 stops42h 50m

£581

LondonChiang Mai

LGW - CNX

LGWCNX

London Gatwick

Tue 25/11

11:40-21:50

2 stops51h 10m

Chiang Mai

Fri 5/12

23:05-05:35

1 stop37h 30m

£587

Flights are sorted by cheapest return flights first.

Deals found on 11/6

Showing 1-10 of 57 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 £1,403). 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 13 June 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.

Rainfall in Chiang Mai by month

Plan your trip to Chiang Mai by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Chiang Mai ranges from 0.0 - 250.0 inches per month. September is typically the wettest month, when rainfall can reach 250.0 mm. January is typically the driest time to visit Chiang Mai when rainfall is around 0.0 mm.

Temperature in Chiang Mai by month

Plan your trip to Chiang Mai by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Chiang Mai, use this chart to help with planning. For those seeking warmer temperatures, April is the ideal time of year to visit, when temperatures reach an average of 29.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 21.0 C).

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 June 2025.
Read reviews from past customers who have flown Korean Air, Emirates and Singapore Airlines from United Kingdom to Chiang Mai. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.4
Very Good
1,091 reviews
Check prices

Entertainment

8.2

Overall

8.4

Boarding

8.5

Food

8.1

Crew

8.7

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Korean Air
8.4
Very Good
1,091 reviews
Korean Air
8.4
Very Good
1,091 reviews
Check prices

Entertainment

8.2

Overall

8.4

Boarding

8.5

Food

8.1

Crew

8.7

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Emirates
8.1
Very Good
3,265 reviews
Korean Air
8.4
Very Good
1,091 reviews
Check prices

Entertainment

8.2

Overall

8.4

Boarding

8.5

Food

8.1

Crew

8.7

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Singapore Airlines
8.1
Very Good
1,304 reviews
Korean Air
8.4
Very Good
1,091 reviews
Check prices

Entertainment

8.2

Overall

8.4

Boarding

8.5

Food

8.1

Crew

8.7

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
KLM
7.8
Good
1,358 reviews
Korean Air
8.4
Very Good
1,091 reviews
Check prices

Entertainment

8.2

Overall

8.4

Boarding

8.5

Food

8.1

Crew

8.7

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Thai Airways
7.7
Good
335 reviews
Korean Air
8.4
Very Good
1,091 reviews
Check prices

Entertainment

8.2

Overall

8.4

Boarding

8.5

Food

8.1

Crew

8.7

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.

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.

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

    For one-way options, check prices for China Southern. According to our data, you can fly for as low as £350. Users have also found prices from £361 and £374 on China Eastern and Gulf Air, 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, 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 £1,403). 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 13 June 2025.
AirlineCheapestAverageFlexibilityOn-time
China SouthernCheapest£418Average£466FlexibilityNo cancel feeOn-time69%
Search China Southern flights
China EasternCheapest£448Average£678FlexibilityNo cancel feeOn-time62%
Search China Eastern flights
Air ChinaCheapest£458Average£543FlexibilityNo cancel feeOn-time67%
Search Air China flights
Juneyao AirlinesCheapest£508Average£560FlexibilityNo cancel feeOn-time66%
Search Juneyao Airlines flights
Malaysia AirlinesCheapest£546Average£735FlexibilityNo cancel feeOn-time67%
Search Malaysia Airlines flights
Etihad AirwaysCheapest£652Average£763FlexibilityNo cancel feeOn-time75%
Search Etihad Airways flights
EVA AirCheapest£658Average£740FlexibilityNo cancel feeOn-time74%
Search EVA Air flights
Cathay PacificCheapest£672Average£859FlexibilityNo cancel feeOn-time72%
Search Cathay Pacific flights
Gulf AirCheapest£689Average£769FlexibilityNo cancel feeOn-time67%
Search Gulf Air flights
Thai AirwaysCheapest£691Average£823FlexibilityNo cancel feeOn-time77%
Search Thai Airways 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?

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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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