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Cheap flights from London to Chiang Mai from £242

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 6/6. Fares are subject to change and may not be available on all flights or dates of travel.
LON — CNX
4 May — 11 May1
1 adult

Cheapflights Tip: The best prices from London to Chiang Mai are usually found in March or September, booked 53 days in advance, depart on a Thursday or Tuesday and return on a Monday

Cheap 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 29 April 2025.

Round-trip from

£491

One-way from

£242

Popular in

July

Cheapest in

March

Average price

£697
China Eastern
  • China Eastern
  • 15/5-18/5
  • 3 total stops
  • 48h 40m total
  • London to Chiang Mai
6/6
  • 6/6
  • 3 total stops
  • 53h 05m total
  • London to Chiang Mai
Highest demand for flights based on searches. 20% potential increase in price (£139 potential increase over avg. return price).
Cheapest flight prices on average. 4% potential price decrease (£23 potential savings vs. average return price).
Average for round-trip flights in April 2025

Find flight deals from London to Chiang Mai

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 29 April 2025.

Thu 15/511:35LGW - CNX
1 stop19h 50mChina Eastern
Sun 18/516:20CNX - LGW
2 stops28h 50mChina Eastern
Deal found 28/4£491
Tue 10/611:35LGW - CNX
2 stops28h 20mMultiple Airlines
Wed 18/608:00CNX - LGW
2 stops37h 00mMultiple Airlines
Deal found 28/4£495
Thu 12/621:00LHR - CNX
2 stops31h 25mChina Southern
Thu 19/618:50CNX - LHR
1 stop30h 10mChina Southern
Deal found 28/4£501
Wed 14/521:20LHR - CNX
2 stops29h 45mChina Eastern
Wed 21/516:20CNX - LHR
2 stops32h 20mChina Eastern
Deal found 28/4£507
Thu 15/522:00LHR - CNX
2 stops41h 50mAir China
Thu 22/523:05CNX - LHR
1 stop24h 40mAir China
Deal found 28/4£540
Fri 13/609:45LHR - CNX
2 stops20h 20mMultiple Airlines
Fri 20/618:25CNX - LHR
2 stops19h 05mMultiple Airlines
Deal found 29/4£553
Fri 31/1010:25LHR - CNX
1 stop20h 25mMalaysia Airlines
Thu 13/1114:50CNX - LHR
1 stop21h 45mMalaysia Airlines
Deal found 28/4£554
Tue 10/608:30LCY - CNX
2 stops21h 35mMultiple Airlines
Wed 18/606:30CNX - LCY
2 stops33h 35mMultiple Airlines
Deal found 28/4£604
Mon 2/618:20LHR - CNX
1 stop33h 25mCathay Pacific
Wed 18/610:30CNX - LHR
1 stop40h 05mCathay Pacific
Deal found 29/4£629
Fri 31/1013:25LTN - CNX
3 stops24h 50mMultiple Airlines
Thu 13/1110:10CNX - LTN
3 stops42h 45mMultiple Airlines
Deal found 28/4£629
Thu 12/621:45LHR - CNX
2 stops29h 35mEtihad Airways
Thu 19/611:55CNX - LHR
2 stops25h 05mEtihad Airways
Deal found 28/4£645
Tue 9/918:35LGW - CNX
2 stops37h 10mSWISS
Sun 14/920:00CNX - LGW
2 stops51h 50mSWISS
Deal found 28/4£694

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 29 April 2025.
Use the filters below to find and compare flights from London to Chiang Mai that are best for you.

Fly from

London

Fly to

Chiang Mai

Route

Depart

Return

Price

LondonChiang Mai

LGW - CNX

LGWCNX

London Gatwick

Thu 15/5

11:35-13:25

1 stop19h 50m

Chiang Mai

Sun 18/5

16:20-15:10

2 stops28h 50m

£491

LondonChiang Mai

LGW - CNX

LGWCNX

London Gatwick

Tue 10/6

11:35-21:55

2 stops28h 20m

Chiang Mai

Wed 18/6

08:00-15:00

2 stops37h 00m

£495

LondonChiang Mai

LHR - CNX

LHRCNX

London Heathrow

Thu 12/6

21:00-10:25

2 stops31h 25m

Chiang Mai

Thu 19/6

18:50-19:00

1 stop30h 10m

£501

LondonChiang Mai

LHR - CNX

LHRCNX

London Heathrow

Wed 14/5

21:20-09:05

2 stops29h 45m

Chiang Mai

Wed 21/5

16:20-18:40

2 stops32h 20m

£507

LondonChiang Mai

LHR - CNX

LHRCNX

London Heathrow

Mon 26/5

20:25-21:50

1 stop19h 25m

Chiang Mai

Thu 12/6

23:05-20:30

1 stop27h 25m

£528

LondonChiang Mai

LHR - CNX

LHRCNX

London Heathrow

Fri 13/6

09:45-12:05

2 stops20h 20m

Chiang Mai

Fri 20/6

18:25-07:30

2 stops19h 05m

£553

LondonChiang Mai

LHR - CNX

LHRCNX

London Heathrow

Thu 12/6

11:00-11:40

1 stop18h 40m

Chiang Mai

Thu 19/6

14:40-16:35

1 stop31h 55m

£557

LondonChiang Mai

LCY - CNX

LCYCNX

London City

Tue 10/6

08:30-12:05

2 stops21h 35m

Chiang Mai

Wed 18/6

06:30-10:05

2 stops33h 35m

£604

LondonChiang Mai

LHR - CNX

LHRCNX

London Heathrow

Mon 2/6

18:20-09:45

1 stop33h 25m

Chiang Mai

Wed 18/6

10:30-20:35

1 stop40h 05m

£629

LondonChiang Mai

LHR - CNX

LHRCNX

London Heathrow

Thu 12/6

21:45-09:20

2 stops29h 35m

Chiang Mai

Thu 19/6

11:55-07:00

2 stops25h 05m

£645

Flights are sorted by cheapest return flights first.

Deals found on 27/4

Showing 1-10 of 27 results
1
2
3

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

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

Use this chart to determine the optimal time to book a return flight from London to Chiang Mai. Price data was last updated on 25 April 2025.

To ensure you get the cheapest price possible for a flight from London to Chiang Mai, you should look to book at least 53 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.

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

Currently, April is the cheapest month in which you can book a flight from London to Chiang Mai (average of £776). Flying from London 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 LON to CNX?

Find hourly flight availability from London 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 April 2025.

It’s optimal to fly from London to Chiang Mai in the afternoon. By choosing this option you can save up to 41% on the cost of your flight, compared to a flight at midday.

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 29 April 2025.
Read through reviews of airlines operating flights from London to Chiang Mai, such as Asiana Airlines, Emirates and KLM. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Food

8.0

Entertainment

7.7

Overall

8.2

Comfort

8.0

Boarding

8.3

Crew

8.5

Reviews

1 / 20
4.0
Okay

Ramón,Feb 2025

ICN - SGN

The same as my experience from NYC to Incheon, just 1 EVER LASTING LONG LINE. No group calling out anything, just telling everyone to line up.

Food

8.0

Entertainment

7.7

Overall

8.2

Comfort

8.0

Boarding

8.3

Crew

8.5

Reviews

1 / 20
4.0
Okay

Ramón,Feb 2025

ICN - SGN

The same as my experience from NYC to Incheon, just 1 EVER LASTING LONG LINE. No group calling out anything, just telling everyone to line up.

Food

8.0

Entertainment

7.7

Overall

8.2

Comfort

8.0

Boarding

8.3

Crew

8.5

Reviews

1 / 20
4.0
Okay

Ramón,Feb 2025

ICN - SGN

The same as my experience from NYC to Incheon, just 1 EVER LASTING LONG LINE. No group calling out anything, just telling everyone to line up.

Food

8.0

Entertainment

7.7

Overall

8.2

Comfort

8.0

Boarding

8.3

Crew

8.5

Reviews

1 / 20
4.0
Okay

Ramón,Feb 2025

ICN - SGN

The same as my experience from NYC to Incheon, just 1 EVER LASTING LONG LINE. No group calling out anything, just telling everyone to line up.

Food

8.0

Entertainment

7.7

Overall

8.2

Comfort

8.0

Boarding

8.3

Crew

8.5

Reviews

1 / 20
4.0
Okay

Ramón,Feb 2025

ICN - SGN

The same as my experience from NYC to Incheon, just 1 EVER LASTING LONG LINE. No group calling out anything, just telling everyone to line up.

Food

8.0

Entertainment

7.7

Overall

8.2

Comfort

8.0

Boarding

8.3

Crew

8.5

Reviews

1 / 20
4.0
Okay

Ramón,Feb 2025

ICN - SGN

The same as my experience from NYC to Incheon, just 1 EVER LASTING LONG LINE. No group calling out anything, just telling everyone to line up.

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 8 airlines. Chiang Mai is conveniently located just 1.9 mi from Chiang Mai’s city center.

  • What are the cheapest airlines flying from London to Chiang Mai round-trip?

    China Eastern, at £491, was found to be the cheapest airline from London to Chiang Mai.Alternate airlines flying return to your destination include China Southern and Air China. China Eastern is priced at 30% lower than the current average price of a flight leaving 3 months from now.

  • 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 Bangkok?

    Most Bangkok visitors opt to spend their time experiencing Pratunam, Thailand Cultural Center, and Siam Square. Travelers on a layover in Bangkok can visit Pratunam, Thailand Cultural Center, and Siam Square, by traveling 14.8 mi, 13.1 mi, and 15.1 mi, respectively after landing at Bangkok Suvarnabhumi. Those on a stopover in Bangkok in need of a car hire can book one at Bangkok Suvarnabhumi for about £17.

  • 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, April is the cheapest month in which you can book a flight from London to Chiang Mai (average of £776). Flying from London 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

Browse thousands of different options on Cheapflights for your next trip

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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 8 airlines flying from London to Chiang Mai

Discover the top 8 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 29 April 2025.
AirlineCheapestAverageFlexibilityOn-time
China SouthernCheapest£422Average£459FlexibilityNo cancel feeOn-time69%
Search China Southern flights
China EasternCheapest£448Average£536FlexibilityNo cancel feeOn-time62%
Search China Eastern flights
Air ChinaCheapest£466Average£554FlexibilityNo cancel feeOn-time67%
Search Air China flights
Malaysia AirlinesCheapest£608Average£774FlexibilityNo cancel feeOn-time67%
Search Malaysia Airlines flights
Etihad AirwaysCheapest£612Average£715FlexibilityNo cancel feeOn-time75%
Search Etihad Airways flights
EVA AirCheapest£680Average£752FlexibilityNo cancel feeOn-time74%
Search EVA Air flights
Thai AirwaysCheapest£703Average£833FlexibilityNo cancel feeOn-time77%
Search Thai Airways flights
Cathay PacificCheapest£753Average£859FlexibilityNo cancel feeOn-time72%
Search Cathay Pacific flights

Fly with Cheapflights

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How does Cheapflights help users find flights 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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