How long is the flight from Chiang Rai to London?

Lufthansa and Thai Airways can get you from Chiang Rai to London in just under 16h 20m. Your travel time can differ by up to 3h 50m. Airlines will cover a distance of 5571 mi. This flight may include one or multiple stops.

In terms of precipitation, rainfall in London 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 when rainfall is around 40.0 mm.

If weather is an important factor for your trip to London, 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 LON?

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 as you normally would.

What airport do you fly from for flights from Chiang Rai to London?

Chiang Rai (CEI), located 4.5 mi from the city center, is the airport you fly out of when you book flights from Chiang Rai to London. 0 airlines have flights from Chiang Rai to London on a regular basis. Booking flights from Chiang Rai to London should not be difficult; the airport handles an average of 0 outbound flights to London per day.

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

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

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

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

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

Yes. Cheapflights offers flight deals from Chiang Rai 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.

£831+ Cheap Flights from Chiang Rai to London

Find flight deals from Chiang Rai to London

Enter your travel dates to find the best prices.

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

Thu 5/318:55CEI - LHR

2 stops20h 10mLufthansa

Sat 7/320:15LHR - CEI

2 stops39h 05mLufthansa

Deal found 4/11£831

Thu 5/310:15CEI - LHR

1 stop16h 20mThai Airways

Sat 7/311:50LHR - CEI

1 stop14h 50mThai Airways

Deal found 4/11£933

Cheap flight deals from Chiang Rai to London

Round-trip from	£831

Lufthansa
5/3-7/3
4 total stops
59h 15m total
Chiang Rai to London

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

Chiang RaiLondon

CEI - LHR

CEILHR

Chiang Rai

Thu 5/3

18:55-08:05

2 stops20h 10m

London Heathrow

Sat 7/3

20:15-18:20

2 stops39h 05m

£831

Chiang RaiLondon

CEI - LHR

CEILHR

Chiang Rai

Thu 5/3

10:15-19:35

1 stop16h 20m

London Heathrow

Sat 7/3

11:50-09:40

1 stop14h 50m

£933

Flights are sorted by cheapest return flights first.

Deals found on 4/11

Best time to book a flight from Chiang Rai to London

Have a flexible travel schedule? Discover the best time to fly to London 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.

Cheapflights Insights

Everything you need to know about your flight from Chiang Rai to London

No data available for this route at this time. Please check back soon.

Related info for your journey

What airport do you fly from for flights from Chiang Rai to London?
Chiang Rai (CEI), located 4.5 mi from the city center, is the airport you fly out of when you book flights from Chiang Rai to London. 0 airlines have flights from Chiang Rai to London on a regular basis. Booking flights from Chiang Rai to London should not be difficult; the airport handles an average of 0 outbound flights to London per day.
How long is the flight from Chiang Rai to London?
Lufthansa and Thai Airways can get you from Chiang Rai to London in just under 16h 20m. Your travel time can differ by up to 3h 50m. Airlines will cover a distance of 5571 mi. This flight may include one or multiple stops.
Can I find deals for flights from Chiang Rai to London that include hotel bookings?
Yes. In addition to deals on Chiang Rai to London flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Chiang Rai to London?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Chiang Rai to London.
Can I find deals for business class flights from Chiang Rai to London?
Yes. Cheapflights offers flight deals from Chiang Rai 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.

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

Certainly. Search results for flights to London from Chiang Rai shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

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Cheap flights from Chiang Rai to London from £831

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/3. Fares are subject to change and may not be available on all flights or dates of travel.

Find flight deals from Chiang Rai to London

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

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