How do most travelers feel about SriLankan Airlines?

The general consensus from 85 Cheapflights users is that SriLankan Airlines is a 6.8/10. Select your travel dates above for updated prices on flights from Colombo Bandaranaike Intl Airport to London Heathrow Airport (CMB-LHR).

Weekly SriLankan Airlines flight availability from Colombo Bandaranaike Intl Airport to London Heathrow Airport

The most SriLankan Airlines flights from CMB to LHR are scheduled on a Monday (1 on average). You will have fewer SriLankan Airlines flight options on Monday, which is when the least amount of flights are scheduled (1 on average).

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).

£419+ SriLankan Airlines Flights from Colombo to Heathrow

Q: How far ahead should I book a flight from Colombo Bandaranaike Intl Airport to London Heathrow Airport with SriLankan Airlines?

Booking with SriLankan Airlines 72 days in advance of your planned departure date is, on average, the best time to get cheap flights from Colombo Bandaranaike Intl Airport to London Heathrow Airport. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

Q: What is the cheapest month to book a flight from Colombo Bandaranaike Intl Airport to London Heathrow Airport with SriLankan Airlines?

Currently, the most affordable month to book a SriLankan Airlines flight from Colombo Bandaranaike Intl Airport to London Heathrow Airport in October, with an average price of £739. Conversely, traveling with SriLankan Airlines from Colombo Bandaranaike Intl Airport to London Heathrow Airport in April will be the most expensive, with an average cost of £1,576. Various factors influence flight prices, so comparing airlines, departure airports, and times can help reduce costs.

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Cheapest SriLankan Airlines flights from Colombo to Heathrow
Explore the most affordable SriLankan Airlines flight options available from Colombo to Heathrow. Find the lowest fares with prices last updated on 12 July 2026.

Tue 21/723:40

CMB

LHR

2 stops36h 45m

SriLankan Airlines

Mon 4/120:05

LHR

CMB

2 stops28h 00m

SriLankan Airlines

Deal found 12/7£669

Tue 21/717:15

CMB

LHR

2 stops27h 40m

SriLankan Airlines

Wed 19/817:15

LHR

CMB

2 stops31h 55m

SriLankan Airlines

Deal found 8/7£672

Mon 20/717:15

CMB

LHR

2 stops30h 35m

SriLankan Airlines

Mon 3/820:05

LHR

CMB

2 stops46h 35m

SriLankan Airlines

Deal found 7/7£688

How do most travelers feel about SriLankan Airlines?
The general consensus from 85 Cheapflights users is that SriLankan Airlines is a 6.8/10. Select your travel dates above for updated prices on flights from Colombo Bandaranaike Intl Airport to London Heathrow Airport (CMB-LHR).
Can I get a flight from Colombo Bandaranaike Intl Airport to London Heathrow Airport on SriLankan Airlines for under £746?
Colombo Bandaranaike Intl Airport to London Heathrow Airport flights on SriLankan Airlines are currently available under £746. 11 flights have been found by Cheapflights users under that amount. To find flights for your dates, click here.

SriLankan Airlines flights from Colombo to Heathrow in 2026

One-way from	£419
Return from	£676
Popular in	August
Cheapest in	May
Average price (all airlines)	£690

SriLankan Airlines
26/11
Nonstop
11h 45m total
Colombo to London

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SriLankan Airlines
7/10-19/10
4 total stops
65h 50m total
Colombo to London

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Highest demand for flights from Colombo to London Heathrow; 5% potential price increase.

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Best time to find cheap flights from Colombo to London Heathrow; 1% potential price drop.

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Average price for all Colombo to London Heathrow flights (one-way and round-trip).

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When is the best time to book a flight to London Heathrow Airport with SriLankan Airlines?

The best time to book a flight to London Heathrow Airport with SriLankan Airlines is 72 days before departure. On average, fares are higher if you book 74 days before departure.

Which month is the cheapest to fly Economy class from Colombo Bandaranaike Intl Airport to London Heathrow Airport?

For Economy class flights, the cheapest month to fly this route is October. The most expensive months are April and May.

Best time to book a flight from Colombo to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Colombo with our price prediction graph.

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SriLankan Airlines flights from Colombo Bandaranaike Intl Airport to London Heathrow Airport (CMB - LHR)

Find SriLankan Airlines flight deals from Colombo to Heathrow

Cheapest SriLankan Airlines flights from Colombo to HeathrowExplore the most affordable SriLankan Airlines flight options available from Colombo to Heathrow. Find the lowest fares with prices last updated on 12 July 2026.

Explore the most affordable SriLankan Airlines flight options available from Colombo to Heathrow. Find the lowest fares with prices last updated on 12 July 2026.

Best SriLankan Airlines flights from Colombo to HeathrowDiscover carefully curated SriLankan Airlines flight deals from Colombo to Heathrow that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 12 July 2026.

Discover carefully curated SriLankan Airlines flight deals from Colombo to Heathrow that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 12 July 2026.

Direct SriLankan Airlines flights from Colombo to HeathrowExplore direct SriLankan Airlines flight options from Colombo to Heathrow based on user searches, and compare prices and availability for your desired travel dates. Data last updated 12 July 2026.

Explore direct SriLankan Airlines flight options from Colombo to Heathrow based on user searches, and compare prices and availability for your desired travel dates. Data last updated 12 July 2026.

Last-minute SriLankan Airlines flights from Colombo to HeathrowDiscover last-minute SriLankan Airlines flight deals from Colombo to Heathrow. Data last updated 12 July 2026 and is based on user searches.

Discover last-minute SriLankan Airlines flight deals from Colombo to Heathrow. Data last updated 12 July 2026 and is based on user searches.

One-way SriLankan Airlines flights to HeathrowSearch for one-way SriLankan Airlines flight options to Heathrow. Find affordable one-way fares based on user searches. Data last updated 12 July 2026.

Search for one-way SriLankan Airlines flight options to Heathrow. Find affordable one-way fares based on user searches. Data last updated 12 July 2026.

How do most travelers feel about SriLankan Airlines?

Can I get a flight from Colombo Bandaranaike Intl Airport to London Heathrow Airport on SriLankan Airlines for under £746?

SriLankan Airlines flights from Colombo to Heathrow in 2026

Find detailed information about SriLankan Airlines flights from Colombo to Heathrow. Explore the options provided by SriLankan Airlines to plan your journey from Colombo to Heathrow. Data last updated 12 July 2026.

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Average price (all airlines)

When is the best time to book a flight to London Heathrow Airport with SriLankan Airlines?

Which month is the cheapest to fly Economy class from Colombo Bandaranaike Intl Airport to London Heathrow Airport?

Weekly SriLankan Airlines flight availability from Colombo Bandaranaike Intl Airport to London Heathrow Airport

Rainfall in Heathrow by month

Temperature in Heathrow by month

Best time to book a flight from Colombo to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Colombo with our price prediction graph.

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.

Fly from Colombo to Heathrow on another airline

Consider alternative airlines that service the Heathrow area. Flight routes are based on user searches made on Cheapflights and were last updated on 12 July 2026.

Other SriLankan Airlines flights from Colombo

Browse through other SriLankan Airlines flights departing from Colombo. Flight routes are based on user searches made on Cheapflights and were last updated on 12 July 2026.

Complete your trip

Complete your trip to Heathrow by adding a car hire and/or hotel booking to your travel itinerary.

Other airlines servicing Colombo and Heathrow

Choose from other airlines serving Colombo and Heathrow.

Other popular destinations in Europe

If Heathrow is not for you, choose from these other destinations located in Europe. Flight routes are based on user searches made on Cheapflights and were last updated on 12 July 2026.

Popular flights with SriLankan Airlines

Browse through some of the most popular routes that SriLankan Airlines offers at this time. Flights are based on user searches made on Cheapflights and were last updated on 12 July 2026.

See what others are saying about SriLankan Airlines

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Cheapest SriLankan Airlines flights from Colombo to Heathrow
Explore the most affordable SriLankan Airlines flight options available from Colombo to Heathrow. Find the lowest fares with prices last updated on 12 July 2026.

Best SriLankan Airlines flights from Colombo to Heathrow
Discover carefully curated SriLankan Airlines flight deals from Colombo to Heathrow that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 12 July 2026.

Direct SriLankan Airlines flights from Colombo to Heathrow
Explore direct SriLankan Airlines flight options from Colombo to Heathrow based on user searches, and compare prices and availability for your desired travel dates. Data last updated 12 July 2026.

Last-minute SriLankan Airlines flights from Colombo to Heathrow
Discover last-minute SriLankan Airlines flight deals from Colombo to Heathrow. Data last updated 12 July 2026 and is based on user searches.

One-way SriLankan Airlines flights to Heathrow
Search for one-way SriLankan Airlines flight options to Heathrow. Find affordable one-way fares based on user searches. Data last updated 12 July 2026.