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Cheap flights from Chiang Mai to London from £144

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 27/10. Fares are subject to change and may not be available on all flights or dates of travel.
CNX — LON
9 Jul — 16 Jul1
1 adult

Cheap flight deals from Chiang Mai to London

Discover tips and strategies to find the most affordable flight options for your journey from Chiang Mai (CNX) to London (LON). 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 4 July 2025.

Round-trip from

£571

One-way from

£144

Popular in

April

Cheapest in

February

Average price

£691
6/8-9/9
  • 6/8-9/9
  • 5 total stops
  • 46h 35m total
  • Chiang Mai to London
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27/10
  • 27/10
  • 1 total stop
  • 19h 10m total
  • Chiang Mai to London
Search Deals
Highest demand for flights based on searches. 13% potential increase in price (£78 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£15 potential savings vs. average return price).
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Average for round-trip flights in July 2025
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Find flight deals from Chiang Mai to London

Cheapest flights from Chiang Mai to London
Explore the most affordable flight options available from Chiang Mai to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 4 July 2025.

Wed 6/812:35CNX - LGW
2 stops24h 30mMultiple Airlines
Tue 9/908:00LGW - CNX
3 stops22h 05mMultiple Airlines
Deal found 3/7£571
Wed 6/814:55CNX - LGW
1 stop30h 05mChina Eastern
Tue 9/918:00LGW - CNX
1 stop37h 25mChina Eastern
Deal found 3/7£591
Sat 20/1223:05CNX - LHR
1 stop25h 45mAir China
Sat 3/120:25LHR - CNX
1 stop18h 25mAir China
Deal found 4/7£633
Wed 6/822:20CNX - LHR
2 stops26h 40mMultiple Airlines
Tue 9/916:35LHR - CNX
3 stops23h 15mMultiple Airlines
Deal found 3/7£640
Wed 6/814:55CNX - LHR
1 stop33h 45mChina Eastern
Tue 9/921:20LHR - CNX
2 stops29h 45mChina Eastern
Deal found 3/7£684
Thu 11/1208:50CNX - LHR
1 stop34h 15mEtihad Airways
Wed 31/1209:00LHR - CNX
1 stop14h 05mEtihad Airways
Deal found 2/7£697
Fri 26/1219:45CNX - LHR
2 stops19h 20mLufthansa
Thu 15/117:50LHR - CNX
2 stops18h 10mLufthansa
Deal found 3/7£715
Mon 1/1218:50CNX - LHR
1 stop30h 25mChina Southern
Wed 17/1217:15LHR - CNX
2 stops41h 35mChina Southern
Deal found 4/7£729
Sat 13/910:10CNX - LGW
2 stops26h 45mGulf Air
Fri 19/911:25LGW - CNX
2 stops25h 45mGulf Air
Deal found 4/7£756
Wed 3/900:45CNX - LHR
1 stop24h 05mAsiana Airlines
Tue 16/920:40LHR - CNX
1 stop21h 00mAsiana Airlines
Deal found 3/7£761
Fri 12/911:20CNX - LHR
1 stop35h 10mChina Airlines
Fri 19/921:10LHR - CNX
1 stop31h 10mChina Airlines
Deal found 3/7£782
Fri 12/920:00CNX - LGW
2 stops22h 35mEmirates
Fri 19/910:05LGW - CNX
2 stops19h 10mEmirates
Deal found 4/7£785

Cheapflights Fare Finder

Customise your flight search to find flights from Chiang Mai to London 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 4 July 2025.
Use the filters below to find and compare flights from Chiang Mai to London that are best for you.

Fly from

Chiang Mai

Fly to

London

Route

Depart

Return

Price

Chiang MaiLondon

CNX - LGW

CNXLGW

Chiang Mai

Wed 6/8

12:35-07:05

2 stops24h 30m

London Gatwick

Tue 9/9

08:00-12:05

3 stops22h 05m

£571

Chiang MaiLondon

CNX - LGW

CNXLGW

Chiang Mai

Wed 6/8

14:55-15:00

1 stop30h 05m

London Gatwick

Tue 9/9

18:00-13:25

1 stop37h 25m

£591

Chiang MaiLondon

CNX - LHR

CNXLHR

Chiang Mai

Sat 20/12

23:05-17:50

1 stop25h 45m

London Heathrow

Sat 3/1

20:25-21:50

1 stop18h 25m

£633

Chiang MaiLondon

CNX - LHR

CNXLHR

Chiang Mai

Wed 6/8

22:20-19:00

2 stops26h 40m

London Heathrow

Tue 9/9

16:35-21:50

3 stops23h 15m

£640

Chiang MaiLondon

CNX - LHR

CNXLHR

Chiang Mai

Wed 6/8

14:55-18:40

1 stop33h 45m

London Heathrow

Tue 9/9

21:20-09:05

2 stops29h 45m

£684

Chiang MaiLondon

CNX - LHR

CNXLHR

Chiang Mai

Thu 11/12

08:50-12:05

1 stop34h 15m

London Heathrow

Wed 31/12

09:00-06:05

1 stop14h 05m

£697

Chiang MaiLondon

CNX - LHR

CNXLHR

Chiang Mai

Fri 26/12

19:45-08:05

2 stops19h 20m

London Heathrow

Thu 15/1

17:50-19:00

2 stops18h 10m

£715

Chiang MaiLondon

CNX - LGW

CNXLGW

Chiang Mai

Sat 13/9

11:55-06:55

2 stops25h 00m

London Gatwick

Fri 19/9

11:25-13:45

2 stops20h 20m

£756

Chiang MaiLondon

CNX - LHR

CNXLHR

Chiang Mai

Wed 3/9

00:45-18:50

1 stop24h 05m

London Heathrow

Tue 16/9

20:40-23:40

1 stop21h 00m

£761

Chiang MaiLondon

CNX - LHR

CNXLHR

Chiang Mai

Mon 15/12

18:50-18:15

1 stop30h 25m

London Heathrow

Wed 31/12

17:15-17:50

2 stops41h 35m

£779

Flights are sorted by cheapest return flights first.

Deals found on 4/7

Showing 1-10 of 28 results
1
2
3

Best time to book a flight from Chiang Mai to London

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

What is the cheapest time of day to fly from CNX to LON?

Find hourly flight availability from Chiang Mai to London. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 4 July 2025.

It’s optimal to fly from Chiang Mai to London in the afternoon. By choosing this option you can save up to 54% on the cost of your flight, compared to a flight in the morning.

Reviews of airlines servicing London

Get insights into the airlines that provide service to London. 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 London. Reviews last updated 4 July 2025.
Read through reviews of airlines operating flights from Chiang Mai to London, such as Korean Air, China Airlines, andAsiana Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.4
Very Good
1,100 reviews
Check prices

Comfort

8.3

Entertainment

8.2

Boarding

8.5

Food

8.1

Overall

8.4

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Myung Suk,May 2025

ICN - LAX

The flight was less crowded and the economic class seat was at least 5 inches longer than other airlines.
Korean Air
8.4
Very Good
1,100 reviews
Korean Air
8.4
Very Good
1,100 reviews
Check prices

Comfort

8.3

Entertainment

8.2

Boarding

8.5

Food

8.1

Overall

8.4

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Myung Suk,May 2025

ICN - LAX

The flight was less crowded and the economic class seat was at least 5 inches longer than other airlines.
China Airlines
8.3
Very Good
744 reviews
Korean Air
8.4
Very Good
1,100 reviews
Check prices

Comfort

8.3

Entertainment

8.2

Boarding

8.5

Food

8.1

Overall

8.4

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Myung Suk,May 2025

ICN - LAX

The flight was less crowded and the economic class seat was at least 5 inches longer than other airlines.
Asiana Airlines
8.2
Very Good
451 reviews
Korean Air
8.4
Very Good
1,100 reviews
Check prices

Comfort

8.3

Entertainment

8.2

Boarding

8.5

Food

8.1

Overall

8.4

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Myung Suk,May 2025

ICN - LAX

The flight was less crowded and the economic class seat was at least 5 inches longer than other airlines.
Emirates
8.1
Very Good
3,287 reviews
Korean Air
8.4
Very Good
1,100 reviews
Check prices

Comfort

8.3

Entertainment

8.2

Boarding

8.5

Food

8.1

Overall

8.4

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Myung Suk,May 2025

ICN - LAX

The flight was less crowded and the economic class seat was at least 5 inches longer than other airlines.
KLM
7.8
Good
1,367 reviews
Korean Air
8.4
Very Good
1,100 reviews
Check prices

Comfort

8.3

Entertainment

8.2

Boarding

8.5

Food

8.1

Overall

8.4

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Myung Suk,May 2025

ICN - LAX

The flight was less crowded and the economic class seat was at least 5 inches longer than other airlines.

Related info for your journey

Find useful and relevant information for your journey from Chiang Mai to London. 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 from for flights from Chiang Mai to London?

    If you book a flight to London from Chiang Mai, you will be flying from Chiang Mai, which is the city’s only airport. Chiang Mai (CNX) is located 1.9 mi from the center of Chiang Mai. There are 0 flights from Chiang Mai to London per day from 2 different airlines.

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

    Cheapflights users have booked flights from Chiang Mai to London round-trip from £591. Other airlines that can offer you cheap pricing are Air China, from £633, and Etihad Airways, from £697. China Eastern is 14% cheaper than the average price of flights available within the next 90 days to this destination.

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

    £284 is the cheapest one-way deal found within the past few days, from Air China. You may also be able to find cheap deals on China Eastern and China Airlines, with prices starting from £329 and £338, respectively.

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

    The most popular route from Chiang Mai to London is Chiang Mai - London Heathrow. You may also consider Chiang Mai - London Gatwick or Chiang Mai - London City.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Chiang Mai to London 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 Chiang Mai to London?

    Currently, January is the cheapest month in which you can book a flight from Chiang Mai to London (average of £112). Flying from Chiang Mai to London in August is currently the most expensive (average of £164). 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

Travelling to a place near Chiang Mai?

Book flights to Chiang Mai if you plan to visit one of these locations
Hounslow
Croydon
Milton Keynes
Deal
Gatwick
Luton
Slough
Wembley
Crawley
Eastbourne
Ilford
Hayes
Folkestone
Southend-on-Sea
Watford
Ipswich
Winchester
Maidstone
Guildford
Chichester

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Chiang Mai to London

See prices for flight routes from nearby airports that may be better suited for you.
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Top 2 airlines flying from Chiang Mai to London

Discover the top 2 airlines that operate flights from Chiang Mai to London. 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 4 July 2025.
AirlineCheapestAverageFlexibilityOn-time
China EasternCheapest£494Average£678FlexibilityNo cancel feeOn-time62%
Search China Eastern flights
Thai AirwaysCheapest£763Average£997FlexibilityNo cancel feeOn-time77%
Search Thai Airways flights

Fly with Cheapflights

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

When you search for this flight from Chiang Mai to London, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

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

Cheapflights helps you find that perfect flight to London from Chiang Mai 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 Chiang Mai to London with no change fees?

Certainly. Search results for flights to London from Chiang Mai shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

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

Yes, Cheapflights offers price alerts on Chiang Mai to London 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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