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Cheap flights from London Heathrow Airport to Chiang Mai from £369

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 30/1. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — CNX
22 Jan — 29 Jan1
1 adult

The best prices from London Heathrow to Chiang Mai are usually found in February or October, booked 41 days in advance, depart on a Sunday or Monday and return on a Monday

Cheap flight deals from Heathrow to Chiang Mai

Discover tips and strategies to find the most affordable flight options for your journey from Heathrow (LHR) 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 17 January 2025.

Round-trip from

£525

One-way from

£369

Popular in

July

Cheapest in

February

Average price

£833
China Eastern
  • China Eastern
  • 3/3-9/3
  • 3 total stops
  • 64h 45m total
  • London to Chiang Mai
China Eastern
  • China Eastern
  • 30/1
  • 3 total stops
  • 27h 40m total
  • London to Chiang Mai
High demand for flights, 9% potential price rise
Best time to find cheap flights, 3% potential price drop
Average for round-trip flights in January 2025

Find flight deals from Heathrow to Chiang Mai

Cheapest flights from Heathrow to Chiang Mai
Explore the most affordable flight options available from Heathrow to Chiang Mai. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 17 January 2025.

Mon 3/321:00LHR - CNX
2 stops35h 25mChina Eastern
Sun 9/315:35CNX - LHR
1 stop29h 20mChina Eastern
Deal found 16/1£525
Fri 28/220:25LHR - CNX
1 stop18h 25mAir China
Fri 14/323:05CNX - LHR
1 stop25h 45mAir China
Deal found 16/1£530
Wed 12/322:00LHR - CNX
1 stop36h 50mChina Southern
Thu 20/318:50CNX - LHR
1 stop30h 25mChina Southern
Deal found 15/1£538
Sat 1/220:25LHR - CNX
2 stops42h 15mMultiple Airlines
Sat 15/223:00CNX - LHR
2 stops47h 55mMultiple Airlines
Deal found 15/1£539
Fri 14/1110:25LHR - CNX
1 stop20h 25mMalaysia Airlines
Fri 21/1112:25CNX - LHR
1 stop34h 00mMalaysia Airlines
Deal found 15/1£666
Mon 23/621:10LHR - CNX
1 stop31h 10mChina Airlines
Sun 10/811:20CNX - LHR
1 stop35h 10mChina Airlines
Deal found 15/1£711
Tue 4/309:30LHR - CNX
2 stops21h 15mGulf Air
Sun 23/310:10CNX - LHR
2 stops35h 35mGulf Air
Deal found 16/1£724
Tue 10/620:55LHR - CNX
2 stops30h 25mEtihad Airways
Tue 8/720:00CNX - LHR
2 stops28h 45mEtihad Airways
Deal found 15/1£725

Find flights from Heathrow to Chiang Mai within your budget

Customise your flight search to find flights from Heathrow 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 17 January 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

LondonChiang Mai

LHR - CNX

LHRCNX

London Heathrow

Mon 3/3

21:00-15:25

2 stops35h 25m

Chiang Mai

Sun 9/3

15:35-13:55

1 stop29h 20m

£525

LondonChiang Mai

LHR - CNX

LHRCNX

London Heathrow

Fri 28/2

20:25-21:50

1 stop18h 25m

Chiang Mai

Fri 14/3

23:05-17:50

1 stop25h 45m

£530

LondonChiang Mai

LHR - CNX

LHRCNX

London Heathrow

Sun 2/3

22:00-17:50

1 stop36h 50m

Chiang Mai

Wed 26/3

18:50-18:15

1 stop30h 25m

£542

LondonChiang Mai

LHR - CNX

LHRCNX

London Heathrow

Tue 18/3

17:40-23:45

2 stops23h 05m

Chiang Mai

Mon 24/3

00:45-17:50

2 stops24h 05m

£655

LondonChiang Mai

LHR - CNX

LHRCNX

London Heathrow

Sat 22/3

10:25-11:25

1 stop18h 00m

Chiang Mai

Mon 31/3

12:35-16:35

1 stop34h 00m

£690

LondonChiang Mai

LHR - CNX

LHRCNX

London Heathrow

Tue 4/3

09:30-13:45

2 stops21h 15m

Chiang Mai

Sun 23/3

10:10-14:45

2 stops35h 35m

£724

LondonChiang Mai

LHR - CNX

LHRCNX

London Heathrow

Sun 2/3

22:00-11:20

2 stops30h 20m

Chiang Mai

Wed 26/3

19:45-20:00

2 stops31h 15m

£796

LondonChiang Mai

LHR - CNX

LHRCNX

London Heathrow

Thu 17/4

22:05-10:15

1 stop30h 10m

Chiang Mai

Sat 26/4

11:15-19:30

1 stop62h 15m

£865

LondonChiang Mai

LHR - CNX

LHRCNX

London Heathrow

Mon 31/3

06:30-10:20

2 stops21h 50m

Chiang Mai

Tue 22/4

11:20-20:55

2 stops39h 35m

£896

LondonChiang Mai

LHR - CNX

LHRCNX

London Heathrow

Sat 29/3

19:25-19:10

2 stops16h 45m

Chiang Mai

Tue 15/4

20:00-21:40

2 stops31h 40m

£931

Flights are sorted by cheapest return flights first.

Deals found on 16/1

Showing 1-10 of 22 results
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Best time to book a flight from Heathrow to Chiang Mai

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

Travel insights for flights from Heathrow to Chiang Mai

Get recent, data-driven insights about flights from Heathrow to Chiang Mai including ideal travel times, pricing trends, and more.

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

Use this chart to determine the optimal time to book a return flight from Heathrow to Chiang Mai. Price data was last updated on 10 January 2025.

The price you pay for your flight from London Heathrow Airport to Chiang Mai may vary depending on when you book. For the best chance of a lower fare, look to book 41 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

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

Find hourly flight availability from Heathrow 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 17 January 2025.

It’s typically best to fly out from London Heathrow Airport to Chiang Mai at midday. Doing so could potentially save you 27% on the flight price compared to flying in the morning, which is usually more expensive.

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 17 January 2025.
Read reviews from past customers who have flown Etihad Airways and China Eastern from London to Chiang Mai. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
8.4
Very Good
1,248 reviews

Comfort

8.2

Crew

8.6

Food

8.0

Boarding

8.4

Entertainment

8.0

Overall

8.4

Reviews

1 / 10

The food was HORRIBLE, the flight crew looked as though they’d rather be getting a root canal, and the bathrooms were disgusting.

8.4
Very Good
1,248 reviews
8.4
Very Good
1,248 reviews

Comfort

8.2

Crew

8.6

Food

8.0

Boarding

8.4

Entertainment

8.0

Overall

8.4

Reviews

1 / 10

The food was HORRIBLE, the flight crew looked as though they’d rather be getting a root canal, and the bathrooms were disgusting.

8.3
Very Good
466 reviews
8.4
Very Good
1,248 reviews

Comfort

8.2

Crew

8.6

Food

8.0

Boarding

8.4

Entertainment

8.0

Overall

8.4

Reviews

1 / 10

The food was HORRIBLE, the flight crew looked as though they’d rather be getting a root canal, and the bathrooms were disgusting.

8.2
Very Good
737 reviews
8.4
Very Good
1,248 reviews

Comfort

8.2

Crew

8.6

Food

8.0

Boarding

8.4

Entertainment

8.0

Overall

8.4

Reviews

1 / 10

The food was HORRIBLE, the flight crew looked as though they’d rather be getting a root canal, and the bathrooms were disgusting.

8.1
Very Good
3,351 reviews
8.4
Very Good
1,248 reviews

Comfort

8.2

Crew

8.6

Food

8.0

Boarding

8.4

Entertainment

8.0

Overall

8.4

Reviews

1 / 10

The food was HORRIBLE, the flight crew looked as though they’d rather be getting a root canal, and the bathrooms were disgusting.

8.1
Very Good
1,327 reviews
8.4
Very Good
1,248 reviews

Comfort

8.2

Crew

8.6

Food

8.0

Boarding

8.4

Entertainment

8.0

Overall

8.4

Reviews

1 / 10

The food was HORRIBLE, the flight crew looked as though they’d rather be getting a root canal, and the bathrooms were disgusting.

Related info for your journey

Find useful and relevant information for your journey from Heathrow 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 Heathrow?

    For a flight from London Heathrow to Chiang Mai, you will be flying into Chiang Mai. Chiang Mai (CNX) is just 1.9 mi from the center of the city. Chiang Mai is the only Chiang Mai airport and it handles 0 inbound flights from London Heathrow per day. 8 airlines have flights to Chiang Mai from London Heathrow on a regular basis.

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

    Flying on China Eastern is currently your cheapest option to Chiang Mai, with prices starting at £525. Additional return tickets that might be worth considering are offered by Air China and China Southern, with the lowest prices starting at £530 and £542, respectively. Users have found that China Eastern is 39% cheaper than the other options available to this destination.

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

    £369 is the cheapest one-way deal found within the past few days, from China Eastern. You may also be able to find cheap deals on China Southern and Malaysia Airlines, with prices starting from £374 and £439, respectively.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Heathrow 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 Heathrow Airport to Chiang Mai?

    Currently, April is the cheapest month in which you can book a flight from London Heathrow Airport to Chiang Mai (average of £776). Flying from London Heathrow Airport 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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Top 8 airlines flying from Heathrow to Chiang Mai

Discover the top 8 airlines that operate flights from Heathrow 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 17 January 2025.
AirlineCheapestAverageFlexibilityOn-time
China SouthernCheapest£461Average£514FlexibilityNo cancel feeOn-time69%
Search China Southern flights
China EasternCheapest£470Average£611FlexibilityNo cancel feeOn-time62%
Search China Eastern flights
Air ChinaCheapest£512Average£664FlexibilityNo cancel feeOn-time67%
Search Air China flights
Etihad AirwaysCheapest£655Average£714FlexibilityNo cancel feeOn-time75%
Search Etihad Airways flights
Malaysia AirlinesCheapest£687Average£861FlexibilityNo cancel feeOn-time67%
Search Malaysia Airlines flights
EVA AirCheapest£744Average£823FlexibilityNo cancel feeOn-time74%
Search EVA Air flights
Thai AirwaysCheapest£784Average£920FlexibilityNo cancel feeOn-time77%
Search Thai Airways flights
Singapore AirlinesCheapest£841Average£914FlexibilityNo cancel feeOn-time81%
Search Singapore Airlines flights

Fly with Cheapflights

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

Cheapflights helps you find that perfect flight to Chiang Mai from Heathrow by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

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Cheapflights does show flights with no change fees to all users. To see these options for flights from Heathrow to Chiang Mai, users can toggle the no change fees filter when performing a flight search.

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

Yes, Cheapflights offers price alerts on Heathrow 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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