Cheap flights from Chiang Mai to London from ฿9,475

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 6/2. Fares are subject to change and may not be available on all flights or dates of travel.
CNX — LON
2 Sep — 9 Sep1
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 28 August 2025.

Round-trip from

฿24,499

One-way from

฿9,475

Popular in

April

Cheapest in

February

Average price

฿37,803
Air China
  • Air China
  • 16/11-23/11
  • 2 total stops
  • 44h 10m total
  • Chiang Mai to London
6/2
  • 6/2
  • 3 total stops
  • 28h 45m total
  • Chiang Mai to London
Highest demand for flights based on searches. 13% potential increase in price (฿152,021 potential increase over avg. return price).
Cheapest flight prices on average. 2% potential price decrease (฿27,520 potential savings vs. average return price).
Average for round-trip flights in August 2025

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 28 August 2025.

Sun 16/1123:05CNX - LHR
1 stop25h 45mAir China
Sun 23/1120:25LHR - CNX
1 stop18h 25mAir China
Deal found 27/8฿24,499
Sat 20/1210:05CNX - LGW
2 stops34h 55mChina Eastern
Sat 3/110:30LGW - CNX
2 stops39h 35mChina Eastern
Deal found 27/8฿24,661
Tue 2/914:55CNX - LGW
1 stop30h 05mChina Eastern
Sun 5/1011:35LGW - CNX
1 stop19h 50mChina Eastern
Deal found 27/8฿26,414
Sat 13/914:55CNX - LGW
1 stop31h 05mChina Eastern
Fri 19/918:40LGW - CNX
1 stop36h 45mChina Eastern
Deal found 26/8฿26,543
Thu 25/906:30CNX - LHR
2 stops31h 00mMultiple Airlines
Thu 2/1014:40LHR - CNX
2 stops21h 15mMultiple Airlines
Deal found 26/8฿29,853
Tue 2/914:55CNX - LHR
1 stop33h 45mChina Eastern
Sun 5/1021:20LHR - CNX
1 stop34h 05mChina Eastern
Deal found 27/8฿29,918
Sat 20/1223:05CNX - LHR
1 stop25h 45mAir China
Sat 3/120:25LHR - CNX
1 stop18h 25mAir China
Deal found 27/8฿30,437
Sun 16/1110:10CNX - LHR
2 stops32h 55mเอทิฮัดแอร์เวย์
Sun 23/1120:55LHR - CNX
1 stop26h 10mเอทิฮัดแอร์เวย์
Deal found 27/8฿30,599
Sat 13/923:05CNX - LHR
1 stop27h 25mAir China
Fri 19/922:40LHR - CNX
1 stop17h 10mAir China
Deal found 26/8฿31,378
Fri 12/914:55CNX - LHR
1 stop33h 45mChina Eastern
Fri 19/921:20LHR - CNX
1 stop34h 05mChina Eastern
Deal found 27/8฿32,125
Sat 13/920:00CNX - LCY
2 stops42h 50mเคแอลเอ็ม รอยัล ดัตช์ แอร์ไลน์
Fri 19/909:20LCY - CNX
2 stops22h 25mเคแอลเอ็ม รอยัล ดัตช์ แอร์ไลน์
Deal found 26/8฿50,491
Fri 12/920:00CNX - LCY
2 stops51h 20mเคแอลเอ็ม รอยัล ดัตช์ แอร์ไลน์
Fri 19/909:20LCY - CNX
2 stops22h 25mเคแอลเอ็ม รอยัล ดัตช์ แอร์ไลน์
Deal found 26/8฿52,892

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 17,341 searches. Data last updated 28 August 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 - LHR

CNXLHR

Chiang Mai

Sun 16/11

23:05-17:50

1 stop25h 45m

London Heathrow

Sun 23/11

20:25-21:50

1 stop18h 25m

฿24,499

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

฿24,661

Chiang MaiLondon

CNX - LGW

CNXLGW

Chiang Mai

Sat 13/9

14:55-16:00

1 stop31h 05m

London Gatwick

Fri 19/9

18:40-13:25

1 stop36h 45m

฿26,543

Chiang MaiLondon

CNX - LHR

CNXLHR

Chiang Mai

Thu 25/9

06:30-07:30

2 stops31h 00m

London Heathrow

Thu 2/10

14:40-17:55

2 stops21h 15m

฿29,853

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

฿30,437

Chiang MaiLondon

CNX - LHR

CNXLHR

Chiang Mai

Sun 16/11

10:10-12:05

2 stops32h 55m

London Heathrow

Sun 23/11

20:55-06:05

1 stop26h 10m

฿30,599

Chiang MaiLondon

CNX - LHR

CNXLHR

Chiang Mai

Sat 13/9

23:05-20:30

1 stop27h 25m

London Heathrow

Fri 19/9

22:40-21:50

1 stop17h 10m

฿31,378

Chiang MaiLondon

CNX - LHR

CNXLHR

Chiang Mai

Fri 12/9

14:55-18:40

1 stop33h 45m

London Heathrow

Fri 19/9

21:20-13:25

1 stop34h 05m

฿32,125

Chiang MaiLondon

CNX - LHR

CNXLHR

Chiang Mai

Sat 20/12

19:45-11:05

2 stops46h 20m

London Heathrow

Sat 3/1

20:30-09:25

2 stops29h 55m

฿34,039

Chiang MaiLondon

CNX - LCY

CNXLCY

Chiang Mai

Sat 13/9

20:00-08:50

2 stops42h 50m

London City

Fri 19/9

09:20-13:45

2 stops22h 25m

฿50,491

Flights are sorted by cheapest return flights first.

Deals found on 25/8

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 28 August 2025.

When flying from Chiang Mai to London, the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 44% versus a flight in the morning.

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.

Bangkok (BKK) – chosen by Cheapflights users on 40% 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.

Shanghai (PVG) is the most affordable one-stop option, with an average return flight price of ฿25,435.

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 26m.

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 28 August 2025.
Check out reviews from past customers who have flown with China Eastern from Chiang Mai to London to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Comfort

7.2

Food

6.9

Overall

7.2

Entertainment

6.2

Boarding

7.7

Crew

7.9

Reviews

1 / 4
2.0
Mediocre

Jordan,Jun 2025

PHX - LAX

Bad. I completely lost my bags. And, I can't even get in contact with anyone to find them.

Comfort

7.2

Food

6.9

Overall

7.2

Entertainment

6.2

Boarding

7.7

Crew

7.9

Reviews

1 / 4
2.0
Mediocre

Jordan,Jun 2025

PHX - LAX

Bad. I completely lost my bags. And, I can't even get in contact with anyone to find them.

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?

    Chiang Mai (CNX) is the airport you will fly out of if you book a flight from Chiang Mai to London. You should not have trouble finding flights to London from Chiang Mai; the airport handles an average of 0 outbound flights to London per day. You should also have plenty of airline options to choose from since 0 airlines have flights from the Chiang Mai airport to London. It is only a 3.1 km journey to Chiang Mai (CNX) from Chiang Mai’s city centre.

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

    There are many flights that can get you from Chiang Mai to London in 25h 45m. Fly via Air China, China Eastern, or เคแอลเอ็ม รอยัล ดัตช์ แอร์ไลน์ to get the fastest option. There are 9009 km between Chiang Mai and London. This flight may include one or multiple stops.

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

  • 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, December is the cheapest month in which you can book a flight from Chiang Mai to London (average of ฿810). Flying from Chiang Mai to London in July is currently the most expensive (average of ฿1,016). 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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Yes, we can. To see specific flights from Chiang Mai to London with no change fees, users can toggle flexible booking options after using the search form above to find flights.

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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