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Cheap flights from Chiang Rai to London Heathrow Airport from £791

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/4. Fares are subject to change and may not be available on all flights or dates of travel.
CEI — LHR
26 Feb — 5 Mar1
1 adult

Cheap flight deals from Chiang Rai to Heathrow

Discover tips and strategies to find the most affordable flight options for your journey from Chiang Rai (CEI) to Heathrow (LHR). 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 21 February 2025.

Round-trip from

£791
7/4-14/4
  • 7/4-14/4
  • 5 total stops
  • 65h 05m total
  • Chiang Rai to London
Search Deals

Find flight deals from Chiang Rai to Heathrow

Cheapest flights from Chiang Rai to Heathrow
Explore the most affordable flight options available from Chiang Rai to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 21 February 2025.

Mon 7/418:55CEI - LHR
2 stops29h 45mMultiple Airlines
Mon 14/416:35LHR - CEI
3 stops35h 20mMultiple Airlines
Deal found 21/2£791
Mon 7/418:55CEI - LHR
1 stop30h 15mThai Airways
Mon 14/412:30LHR - CEI
1 stop18h 40mThai Airways
Deal found 21/2£807

Find flights from Chiang Rai to Heathrow within your budget

Customise your flight search to find flights from Chiang Rai to Heathrow 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 21 February 2025.

Fly from

Chiang Rai

Fly to

Heathrow

Route

Depart

Return

Price

Chiang RaiLondon

CEI - LHR

CEILHR

Chiang Rai

Mon 7/4

18:55-18:40

2 stops29h 45m

London Heathrow

Mon 14/4

16:35-09:55

3 stops35h 20m

£791

Chiang RaiLondon

CEI - LHR

CEILHR

Chiang Rai

Mon 7/4

18:55-19:10

1 stop30h 15m

London Heathrow

Mon 14/4

12:30-13:10

1 stop18h 40m

£807

Flights are sorted by cheapest return flights first.

Deals found on 21/2

Best time to book a flight from Chiang Rai to Heathrow

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

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

Rainfall in Heathrow by month

Plan your trip to Heathrow by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in London Heathrow Airport ranges from 40.0 - 70.0 inches per month. January is typically the wettest month, when rainfall can reach 70.0 mm. July is typically the driest time to visit London Heathrow Airport when rainfall is around 40.0 mm.

Temperature in Heathrow by month

Plan your trip to Heathrow by taking into account the average temperature totals by month.

If weather is an important factor for your trip to London Heathrow Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 4.0 C).

Reviews of airlines servicing Heathrow

Get insights into the airlines that provide service to Heathrow. 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 Heathrow. Reviews last updated 21 February 2025.
Thai Airways
7.8
Good
317 reviews
Check prices

Food

7.3

Boarding

7.9

Comfort

7.6

Overall

7.8

Crew

8.3

Entertainment

6.8

Reviews

1 / 17

10.0
Excellent

ROBERT,Nov 2024

SGN - BKK

Very professional crew and food were excellent and seats were comfortable. Good choice on screen and relaxed flight

Thai Airways
7.8
Good
317 reviews
Thai Airways
7.8
Good
317 reviews
Check prices

Food

7.3

Boarding

7.9

Comfort

7.6

Overall

7.8

Crew

8.3

Entertainment

6.8

Reviews

1 / 17

10.0
Excellent

ROBERT,Nov 2024

SGN - BKK

Very professional crew and food were excellent and seats were comfortable. Good choice on screen and relaxed flight

Related info for your journey

Find useful and relevant information for your journey from Chiang Rai to Heathrow. 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 Rai to London Heathrow?

    If you book a flight to London Heathrow from Chiang Rai, you will be flying from Chiang Rai, which is the city’s only airport. Chiang Rai (CEI) is located 4.5 mi from the center of Chiang Rai. There are 0 flights from Chiang Rai to London Heathrow per day from 0 different airlines.

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Chiang Rai to London Heathrow Airport (average of £112). Flying from Chiang Rai to London Heathrow Airport in August is currently the most expensive (average of £163). 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 Rai?

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Deal
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Watford

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