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Cheap flights from Chiang Mai to London from £151

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 13/12. Fares are subject to change and may not be available on all flights or dates of travel.
CNX — LON
20 Dec — 27 Dec1
1 adult
1 adult, Economy, 0 bags

Find flight deals from Chiang Mai to London

Enter your travel dates to find the best prices.

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 20 November 2025.

Wed 26/1115:35CNX - LHR
1 stop32h 55mChina Eastern
Sun 30/1121:00LHR - CNX
2 stops35h 25mChina Eastern
Deal found 19/11£557
Sat 20/1210:05CNX - LGW
2 stops34h 55mChina Eastern
Sat 3/110:30LGW - CNX
2 stops39h 35mChina Eastern
Deal found 18/11£649
Sat 20/1208:50CNX - LHR
1 stop16h 20mMultiple Airlines
Sat 3/120:25LHR - CNX
2 stops37h 35mMultiple Airlines
Deal found 18/11£655
Sat 22/1109:30CNX - LHR
2 stops35h 30mMultiple Airlines
Fri 28/1117:40LHR - CNX
1 stop21h 10mMultiple Airlines
Deal found 18/11£672
Fri 12/1215:35CNX - LHR
1 stop32h 55mChina Eastern
Thu 25/1221:00LHR - CNX
2 stops29h 05mChina Eastern
Deal found 18/11£693
Sat 22/1110:35CNX - LHR
1 stop35h 25mCathay Pacific
Fri 28/1122:05LHR - CNX
1 stop28h 45mCathay Pacific
Deal found 18/11£719
Sat 22/1116:25CNX - LGW
3 stops27h 35mMultiple Airlines
Fri 28/1106:10LGW - CNX
2 stops25h 10mMultiple Airlines
Deal found 18/11£722
Sat 20/1216:25CNX - LHR
2 stops32h 05mChina Eastern
Sat 3/121:00LHR - CNX
2 stops29h 05mChina Eastern
Deal found 18/11£735
Wed 26/1110:10CNX - LHR
2 stops28h 55mSWISS
Sun 30/1106:00LHR - CNX
2 stops24h 45mSWISS
Deal found 19/11£856
Sat 22/1110:10CNX - LCY
2 stops33h 35mSWISS
Fri 28/1109:20LCY - CNX
2 stops21h 25mSWISS
Deal found 18/11£981
Sat 22/1123:05CNX - LCY
3 stops41h 10mMultiple Airlines
Fri 28/1109:20LCY - CNX
2 stops21h 25mMultiple Airlines
Deal found 18/11£1,018
Sat 20/1210:10CNX - LCY
2 stops33h 35mSWISS
Sat 3/112:15LCY - CNX
2 stops18h 30mSWISS
Deal found 18/11£1,376

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 20 November 2025.

Round-trip from

£414

One-way from

£151

Popular in

April

Cheapest in

October

Average price

£555
China Eastern
  • China Eastern
  • 4/12-12/1
  • 4 total stops
  • 54h 10m total
  • Chiang Mai to London
Search Deals
Etihad Airways
  • Etihad Airways
  • 13/12
  • 1 total stop
  • 16h 20m total
  • Chiang Mai to London
Search Deals
Highest demand for flights based on searches. 9% potential increase in price (£60 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£14 potential savings vs. average return price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

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 20 November 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

Thu 5/3

10:05-06:30

2 stops27h 25m

London Gatwick

Mon 9/3

17:00-14:20

1 stop38h 20m

£603

Chiang MaiLondon

CNX - LGW

CNXLGW

Chiang Mai

Tue 3/3

16:25-14:00

3 stops52h 35m

London Gatwick

Fri 13/3

17:00-15:25

2 stops39h 25m

£616

Chiang MaiLondon

CNX - LHR

CNXLHR

Chiang Mai

Thu 5/3

08:50-18:10

1 stop16h 20m

London Heathrow

Thu 19/3

19:20-06:05

1 stop27h 45m

£627

Chiang MaiLondon

CNX - LHR

CNXLHR

Chiang Mai

Tue 3/3

14:50-15:25

1 stop31h 35m

London Heathrow

Fri 13/3

10:25-13:50

1 stop20h 25m

£648

Chiang MaiLondon

CNX - LGW

CNXLGW

Chiang Mai

Sat 20/12

10:05-14:00

2 stops34h 55m

London Gatwick

Sat 3/1

10:30-09:05

2 stops39h 35m

£649

Chiang MaiLondon

CNX - LGW

CNXLGW

Chiang Mai

Thu 5/3

10:05-14:00

2 stops34h 55m

London Gatwick

Thu 19/3

10:30-09:05

2 stops39h 35m

£658

Chiang MaiLondon

CNX - LHR

CNXLHR

Chiang Mai

Sun 15/3

08:50-06:40

1 stop28h 50m

London Heathrow

Wed 24/6

09:30-05:55

1 stop14h 25m

£672

Chiang MaiLondon

CNX - LHR

CNXLHR

Chiang Mai

Thu 5/3

08:50-18:10

1 stop16h 20m

London Heathrow

Sat 7/3

08:50-06:05

1 stop14h 15m

£677

Chiang MaiLondon

CNX - LHR

CNXLHR

Chiang Mai

Sat 14/3

06:35-19:20

2 stops19h 45m

London Heathrow

Thu 25/6

11:00-11:40

1 stop18h 40m

£678

Chiang MaiLondon

CNX - LHR

CNXLHR

Chiang Mai

Thu 30/4

16:20-18:40

2 stops32h 20m

London Heathrow

Wed 14/10

21:20-13:25

1 stop34h 05m

£678

Flights are sorted by cheapest return flights first.

Deals found on 19/11

Showing 1-10 of 41 results
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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 20 November 2025.

It’s optimal to fly from Chiang Mai to London in the afternoon. By choosing this option you can save up to 37% on the cost of your flight, compared to a flight in the evening.

What’s the top stopover airport for flights from Chiang Mai to London?

Share of one-stop return flights from Chiang Mai to London chosen by Cheapflights users in the past 12 months, using the same stopover each way.

Shanghai (PVG) – chosen by Cheapflights users on 64% of one-stop itineraries from Chiang Mai to London on Cheapflights.

What’s the cheapest stopover airport for flights from Chiang Mai to London?

Average return fare for one-stop flights from Chiang Mai to London, chosen by Cheapflights users in the past 12 months, with the same stopover each way.

Guangzhou (CAN) is the most affordable one-stop option, with an average return flight price of £499.

What’s the fastest stopover option from Chiang Mai to London?

Shortest average travel time for one-stop one-way flights from Chiang Mai to London, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by stopover airport.

Flights via Bangkok (BKK) have the shortest average one-way travel time for one-stop routes: 16h 35m.

Which airport typically offers the quickest stopover for flights from Chiang Mai to London?

Average stopover duration for one-stop one-way flights from Chiang Mai to London, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Abu Dhabi (AUH) offer the fastest connection on this route, with an average stopover time of 1h 23m.

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 20 November 2025.
Read through reviews of airlines operating flights from Chiang Mai to London, such as China Eastern. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
China Eastern
7.2
Good
178 reviews
Check prices

Boarding

7.6

Entertainment

6.2

Overall

7.2

Food

6.8

Crew

7.9

Comfort

7.2

Reviews

1 / 5
2.0
Mediocre

P R,Sept 2025

LGW - PVG

From check in to to the flight attendants, the staff of China Eastern were so rude. At check in, all staff had icy looks, and ours didn’t respond to any greetings or thank yous. Despite not at all leaning into the aisle, one flight attendant was repeatedly bolting up and down the aisle, and knocking me when passing by waking me up several times.
China Eastern
7.2
Good
178 reviews
China Eastern
7.2
Good
178 reviews
Check prices

Boarding

7.6

Entertainment

6.2

Overall

7.2

Food

6.8

Crew

7.9

Comfort

7.2

Reviews

1 / 5
2.0
Mediocre

P R,Sept 2025

LGW - PVG

From check in to to the flight attendants, the staff of China Eastern were so rude. At check in, all staff had icy looks, and ours didn’t respond to any greetings or thank yous. Despite not at all leaning into the aisle, one flight attendant was repeatedly bolting up and down the aisle, and knocking me when passing by waking me up several times.

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 3 different airlines.

  • How long is the flight from Chiang Mai to London?

    Airlines like China Eastern, Etihad Airways, and Malaysia Airlines fly from Chiang Mai to London in about 16h 20m. The time it takes to get you to your destination can typically vary by up to 15h 15m. The distance between Chiang Mai and London is about 5598 mi. This flight may include one or multiple stops.

  • 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 £524. Other airlines that can offer you cheap pricing are China Eastern, from £610, and Thai Airways, from £903. Air China is 29% cheaper than the average price of flights available within the next 90 days to this destination.

  • 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.

See more FAQs

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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 3 airlines flying from Chiang Mai to London

Discover the top 3 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 20 November 2025.
AirlineCheapestAverageFlexibilityOn-time
Air ChinaCheapest£524Average£563FlexibilityNo cancel feeOn-time67%
Search Air China flights
China EasternCheapest£610Average£706FlexibilityNo cancel feeOn-time62%
Search China Eastern flights
Thai AirwaysCheapest£903Average£1,038FlexibilityNo cancel feeOn-time77%
Search Thai Airways 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 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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