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 £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.

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.

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).

What is the cheapest time of day to fly from CEI to LHR?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Chiang Rai to London Heathrow Airport as you normally would.

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.

£205+ Flights from Chiang Rai to London Heathrow Airport

Cheap flight deals from Chiang Rai to Heathrow

Round-trip from	£742
One-way from	£205

18/8-25/8
6 total stops
59h 15m total
Chiang Rai to London

Search Deals

28/10
2 total stops
43h 40m 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 5 July 2025.

Mon 18/813:10CEI - LHR

3 stops28h 20mMultiple Airlines

Mon 25/806:30LHR - CEI

3 stops30h 55mMultiple Airlines

Deal found 4/7£742

Mon 18/813:40CEI - LHR

1 stop35h 35mThai Airways

Mon 25/812:30LHR - CEI

1 stop15h 10mThai Airways

Deal found 4/7£804

Sun 17/818:55CEI - LHR

3 stops21h 00mLufthansa

Sun 24/816:25LHR - CEI

3 stops19h 55mLufthansa

Deal found 3/7£1,317

Best flights from Chiang Rai to Heathrow
Discover carefully curated flight deals from Chiang Rai to Heathrow that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 5 July 2025.

Mon 18/813:10CEI - LHR

3 stops28h 20mMultiple Airlines

Mon 25/806:30LHR - CEI

3 stops30h 55mMultiple Airlines

Deal found 4/7£742

Mon 18/813:40CEI - LHR

1 stop35h 35mThai Airways

Mon 25/812:30LHR - CEI

1 stop15h 10mThai Airways

Deal found 4/7£804

Sun 17/818:55CEI - LHR

3 stops21h 00mLufthansa

Sun 24/816:25LHR - CEI

3 stops19h 55mLufthansa

Deal found 3/7£1,317

Last-minute flights from Chiang Rai to Heathrow
Discover last-minute flight deals from Chiang Rai to Heathrow. Data last updated 5 July 2025 and is based on user searches.

Sun 17/818:55CEI - LHR

3 stops21h 00mLufthansa

Sun 24/816:25LHR - CEI

3 stops19h 55mLufthansa

Deal found 3/7£1,317

Mon 18/813:10CEI - LHR

3 stops28h 20mMultiple Airlines

Mon 25/806:30LHR - CEI

3 stops30h 55mMultiple Airlines

Deal found 4/7£742

Mon 18/813:40CEI - LHR

1 stop35h 35mThai Airways

Mon 25/812:30LHR - CEI

1 stop15h 10mThai Airways

Deal found 4/7£804

Cheapflights Fare Finder

Use the filters below to find and compare flights from Chiang Rai to London Heathrow Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Chiang RaiLondon

CEI - LHR

CEILHR

Chiang Rai

Mon 18/8

13:10-11:30

3 stops28h 20m

London Heathrow

Mon 25/8

06:30-19:25

3 stops30h 55m

£742

Chiang RaiLondon

CEI - LHR

CEILHR

Chiang Rai

Mon 18/8

13:40-19:15

1 stop35h 35m

London Heathrow

Mon 25/8

12:30-09:40

1 stop15h 10m

£804

Chiang RaiLondon

CEI - LHR

CEILHR

Chiang Rai

Sun 17/8

18:55-09:55

3 stops21h 00m

London Heathrow

Sun 24/8

16:25-18:20

3 stops19h 55m

£1,317

Chiang RaiLondon

CEI - LHR

CEILHR

Chiang Rai

Tue 28/10

08:40-21:20

2 stops43h 40m

£205

Chiang RaiLondon

CEI - LHR

CEILHR

Chiang Rai

Sun 3/8

18:55-19:15

1 stop30h 20m

£367

Flights are sorted by cheapest return flights first.

Deals found on 3/7

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.

Reviews of airlines servicing Heathrow

Read reviews from past customers who have flown with Thai Airways and Lufthansa from Chiang Rai to London Heathrow Airport. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Thai Airways

7.7

Good

336 reviews

Check prices

Reviews

1 / 18

10.0

Excellent

Joe,Jun 2025

BKK - TPE

The flight was very comfortable, and I really appreciated that each seat had an electric outlet to charge devices. The staff was great.

Thai Airways

7.7

Good

336 reviews

Thai Airways

7.7

Good

336 reviews

Check prices

Reviews

1 / 18

10.0

Excellent

Joe,Jun 2025

BKK - TPE

The flight was very comfortable, and I really appreciated that each seat had an electric outlet to charge devices. The staff was great.

Lufthansa

6.8

Okay

7,186 reviews

Thai Airways

7.7

Good

336 reviews

Check prices

Reviews

1 / 18

10.0

Excellent

Joe,Jun 2025

BKK - TPE

The flight was very comfortable, and I really appreciated that each seat had an electric outlet to charge devices. The staff was great.

Related info for your journey

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 £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

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Deal

Northampton

Gatwick

Luton

Slough

Wembley

Crawley

Eastbourne

Ilford

Hayes

Folkestone

Southend-on-Sea

Watford

Ipswich

Winchester

Swindon

Maidstone

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How does Cheapflights help users find flights from Chiang Rai to Heathrow?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Heathrow from Chiang Rai today with Cheapflights!

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

Millions of users choose and trust Cheapflights to book the best flight deals from Chiang Rai to Heathrow for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from Chiang Rai to Heathrow with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Chiang Rai to Heathrow flexibly with Cheapflights today.

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

Of course! You can now track prices for flights from Chiang Rai to Heathrow and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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Cheap flights from Chiang Rai to London Heathrow Airport from £205

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 28/10. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Chiang Rai to Heathrow

Round-trip from

One-way from

Find flight deals from Chiang Rai to Heathrow

Cheapest flights from Chiang Rai to HeathrowExplore 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 5 July 2025.

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 5 July 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Chiang Rai to London Heathrow Airport that are best for you.

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.

Reviews of airlines servicing Heathrow

Read reviews from past customers who have flown with Thai Airways and Lufthansa from Chiang Rai to London Heathrow Airport. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

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?

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

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

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

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

Travelling to a place near Chiang Rai?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Chiang Rai to Heathrow

See prices for flight routes from nearby airports that may be better suited for you.

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 Rai to Heathrow?

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

Can Cheapflights find flights from Chiang Rai to Heathrow with no change fees?

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

100% Free

Book with Flexibility

Travel Smart

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 5 July 2025.