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Cheap flights from Sri Lanka to London Heathrow Airport from £268

CMB — LHR
9 Oct — 16 Oct1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Sri Lanka to Heathrow

Enter your travel dates to find the best prices.

Cheapest flights from Sri Lanka to Heathrow

Mon 5/1016:05 -
1 stop31h 55m
Mon 12/1012:30 -
1 stop22h 05m
Deal found 5/9£553
Tue 22/917:20 -
1 stop18h 05m
Sat 10/1022:05 -
1 stop31h 05m
Deal found 7/9£554
Sun 4/1005:00 -
1 stop18h 30m
Sun 11/1020:35 -
1 stop26h 55m
Deal found 6/9£555
Tue 22/904:10 -
1 stop19h 05m
Wed 30/920:45 -
1 stop19h 20m
Deal found 4/9£556
Sat 10/1004:10 -
1 stop15h 25m
Thu 3/1219:20 -
1 stop14h 00m
Deal found 7/9£557
Sat 24/1016:20 -
1 stop25h 15m
Mon 9/1120:55 -
1 stop17h 50m
Deal found 7/9£558
Sun 4/1017:20 -
1 stop18h 05m
Sun 8/1118:20 -
2 stops28h 40m
Deal found 7/9£558
Thu 24/916:05 -
1 stop22h 40m
Mon 28/922:05 -
2 stops31h 05m
Deal found 7/9£559
Sat 26/904:10 -
1 stop19h 05m
Wed 30/921:45 -
1 stop12h 40m
Deal found 4/9£561
Sat 19/916:05 -
1 stop31h 55m
Sat 26/912:30 -
1 stop22h 05m
Deal found 8/9£562
Sat 24/1005:00 -
1 stop18h 30m
Fri 6/1120:50 -
3 stops35h 25m
Deal found 5/9£563
Wed 23/904:10 -
1 stop15h 25m
Wed 30/921:45 -
1 stop12h 40m
Deal found 5/9£565

Find flight deals from Sri Lanka to Heathrow

Round-trip from

£553

One-way from

£268

Popular in

March

Cheapest in

April

Average price

£656

Good round-trip deal

£1,016 or less

Good one-way deal

£523 or less
Air India
  • Air India
  • 5/10-12/10
  • 2 total stops
  • 54h 00m total
  • Sri Lanka to London
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17/9-31/12
  • 17/9-31/12
  • 2 total stops
  • 30h 45m total
  • Sri Lanka to London
Search Deals
Highest demand for flights based on searches. 1% potential increase in price (£7 potential increase over avg. return price).
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Cheapest flight prices on average. 1% potential price decrease (£9 potential savings vs. average return price).
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Average for round-trip flights in September 2026
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Price to beat on a round-trip flight from Sri Lanka to London Heathrow.
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Price to beat on a one-way flight from Sri Lanka to London Heathrow.
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Cheapflights Fare Finder

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

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Route

Depart

Return

Price

Cheapest return flight

ColomboLondon

CMB Colombo Bandaranaike Intl - LHR London Heathrow

CMBLHR

Colombo Bandaranaike Intl

Sun 8/11

16:05-12:05

1 stop25h 30m

London Heathrow

Wed 31/12

00:00-04:30

Nonstop0h 00m

£275

ColomboLondon

CMB Colombo Bandaranaike Intl - LHR London Heathrow

CMBLHR

Colombo Bandaranaike Intl

Tue 29/9

21:50-12:45

1 stop19h 25m

London Heathrow

Wed 31/12

00:00-04:30

Nonstop0h 00m

£275
Fastest return journey

ColomboLondon

CMB Colombo Bandaranaike Intl - LHR London Heathrow

CMBLHR

Colombo Bandaranaike Intl

Mon 28/9

04:10-15:05

1 stop15h 25m

London Heathrow

Wed 31/12

00:00-04:30

Nonstop0h 00m

£275

ColomboLondon

CMB Colombo Bandaranaike Intl - LHR London Heathrow

CMBLHR

Colombo Bandaranaike Intl

Thu 24/9

04:10-18:45

1 stop19h 05m

London Heathrow

Wed 31/12

00:00-04:30

Nonstop0h 00m

£278

ColomboLondon

CMB Colombo Bandaranaike Intl - LHR London Heathrow

CMBLHR

Colombo Bandaranaike Intl

Wed 20/1

11:15-21:55

1 stop16h 10m

London Heathrow

Wed 31/12

00:00-04:30

Nonstop0h 00m

£280

ColomboLondon

CMB Colombo Bandaranaike Intl - LHR London Heathrow

CMBLHR

Colombo Bandaranaike Intl

Mon 1/2

03:25-14:00

1 stop16h 05m

London Heathrow

Wed 31/12

00:00-04:30

Nonstop0h 00m

£281

ColomboLondon

CMB Colombo Bandaranaike Intl - LHR London Heathrow

CMBLHR

Colombo Bandaranaike Intl

Mon 18/1

11:15-21:55

1 stop16h 10m

London Heathrow

Wed 31/12

00:00-04:30

Nonstop0h 00m

£292

ColomboLondon

CMB Colombo Bandaranaike Intl - LHR London Heathrow

CMBLHR

Colombo Bandaranaike Intl

Tue 27/10

09:55-14:30

1 stop34h 05m

London Heathrow

Wed 31/12

00:00-04:30

Nonstop0h 00m

£295

ColomboLondon

CMB Colombo Bandaranaike Intl - LHR London Heathrow

CMBLHR

Colombo Bandaranaike Intl

Mon 26/10

16:05-14:30

1 stop27h 55m

London Heathrow

Wed 31/12

00:00-04:30

Nonstop0h 00m

£295

ColomboLondon

CMB Colombo Bandaranaike Intl - LHR London Heathrow

CMBLHR

Colombo Bandaranaike Intl

Sat 7/11

16:05-12:05

1 stop25h 30m

London Heathrow

Wed 11/11

20:55-02:50

1 stop24h 25m

£555

Flights are sorted by cheapest return flights first.

Deals found on 8/9

Showing 1-10 of 21 resultsSorted by cheapest first
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Best time to book a flight from Sri Lanka to Heathrow

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

Cheapflights Insights

Everything you need to know about your flight from Sri Lanka to London Heathrow Airport

What is the cheapest month to book a flight from Sri Lanka to London Heathrow Airport?

Currently, May is the cheapest month in which you can book a flight from Sri Lanka to London Heathrow Airport (average of £614). Flying from Sri Lanka to London Heathrow Airport in January is currently the most expensive (average of £804). 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 LK to LHR?

When flying from Sri Lanka to London Heathrow Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from Sri Lanka to London Heathrow Airport

The most flights from LK0 to LHR are scheduled on a Monday (2 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (2 on average).

How often are flights from Sri Lanka to London delayed?

About 15% of weekly flights between Sri Lanka and London have experienced delays in the past year, with the average delay time being 103 minutes.

What is the most punctual flight time for Sri Lanka to London flights?

Historically, flights departing in the early afternoon are less likely to be delayed, whereas flights leaving in the morning tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Tuesday tends to have the lowest number of delays on this route, whereas Friday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on Sri Lanka to London flights?

Over the past year, SriLankan Airlines have had the lowest number of delays on this route, with just 15% of flights being delayed.

How far ahead should I book a flight from Sri Lanka to London Heathrow Airport?

To ensure you get the cheapest price possible for a flight from Sri Lanka to London Heathrow Airport, you should look to book at least 73 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

Reviews of airlines servicing Heathrow

Read reviews from past customers who have flown with Emirates,Qatar Airways, andEtihad Airways from Sri Lanka 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.
Emirates
8.1
Very Good
3,653 reviews
Check prices

Entertainment

8.2

Food

7.9

Crew

8.4

Comfort

8.0

Overall

8.1

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Steven,May 2026

DXB - GLA

Anyone that i had the pleasure of dealing with i found to be courteous well mannered and informative
Emirates
8.1
Very Good
3,653 reviews
Emirates
8.1
Very Good
3,653 reviews
Check prices

Entertainment

8.2

Food

7.9

Crew

8.4

Comfort

8.0

Overall

8.1

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Steven,May 2026

DXB - GLA

Anyone that i had the pleasure of dealing with i found to be courteous well mannered and informative
Qatar Airways
7.3
Good
3,734 reviews
Emirates
8.1
Very Good
3,653 reviews
Check prices

Entertainment

8.2

Food

7.9

Crew

8.4

Comfort

8.0

Overall

8.1

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Steven,May 2026

DXB - GLA

Anyone that i had the pleasure of dealing with i found to be courteous well mannered and informative
Etihad Airways
7.3
Good
1,533 reviews
Emirates
8.1
Very Good
3,653 reviews
Check prices

Entertainment

8.2

Food

7.9

Crew

8.4

Comfort

8.0

Overall

8.1

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Steven,May 2026

DXB - GLA

Anyone that i had the pleasure of dealing with i found to be courteous well mannered and informative
SriLankan Airlines
6.8
Okay
87 reviews
Emirates
8.1
Very Good
3,653 reviews
Check prices

Entertainment

8.2

Food

7.9

Crew

8.4

Comfort

8.0

Overall

8.1

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Steven,May 2026

DXB - GLA

Anyone that i had the pleasure of dealing with i found to be courteous well mannered and informative
British Airways
6.7
Okay
8,211 reviews
Emirates
8.1
Very Good
3,653 reviews
Check prices

Entertainment

8.2

Food

7.9

Crew

8.4

Comfort

8.0

Overall

8.1

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Steven,May 2026

DXB - GLA

Anyone that i had the pleasure of dealing with i found to be courteous well mannered and informative

Related info for your journey

  • How long is the flight from Sri Lanka to London Heathrow Airport?

    There are many flights that can get you from Sri Lanka to London Heathrow Airport in 25h 30m. Fly via Etihad Airways to get the fastest option. The distance between Sri Lanka and London Heathrow Airport is about 5412 mi.

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

    £209 is the cheapest one-way deal found within the past few days, from IndiGo. You may also be able to find cheap deals on Air India and Etihad Airways, with prices starting from £217 and £238, respectively.

  • What are the cheapest flights from Sri Lanka to London Heathrow Airport?

    On average you can expect to pay £884 for a flight from Sri Lanka to London Heathrow Airport. The cheapest flight overall is £439 while the most popular route, (Colombo Bandaranaike Intl - London Heathrow) is currently priced at £315.

  • Can I find deals for flights from Sri Lanka to Heathrow that include hotel bookings?

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

  • How can I find direct flights from Sri Lanka to Heathrow?

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

  • Can I find deals for business class flights from Sri Lanka to Heathrow?

    Yes. Cheapflights offers flight deals from Sri Lanka 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 Sri Lanka to London Heathrow Airport?

    Currently, May is the cheapest month in which you can book a flight from Sri Lanka to London Heathrow Airport (average of £614). Flying from Sri Lanka to London Heathrow Airport in January is currently the most expensive (average of £804). 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 London Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
Hounslow
Milton Keynes
Luton
Gatwick
Wembley
Slough
Ilford
Hayes
Northampton
Croydon
Colchester
Eastbourne
Brentford
Enfield
Southend-on-Sea
Barnet
Salisbury
Watford
Southall
Swindon

Browse thousands of different options on Cheapflights for your next trip

Top 6 airlines flying from Sri Lanka to Heathrow

AirlineCheapestAverageFlexibilityOn-time
Air IndiaCheapest£263Average£630FlexibilityNo cancel feeOn-timeN/A
Search Air India flights
Etihad AirwaysCheapest£395Average£622FlexibilityNo cancel feeOn-time75%
Search Etihad Airways flights
Qatar AirwaysCheapest£532Average£648FlexibilityNo cancel feeOn-time68%
Search Qatar Airways flights
British AirwaysCheapest£601Average£637FlexibilityNo cancel feeOn-time70%
Search British Airways flights
SriLankan AirlinesCheapest£658Average£910FlexibilityNo cancel feeOn-time68%
Search SriLankan Airlines flights
EmiratesCheapest£663Average£759FlexibilityNo cancel feeOn-time75%
Search Emirates flights

Fly with Cheapflights

How does Cheapflights help users find flights from Sri Lanka to Heathrow?

Cheapflights helps you search for flights from Sri Lanka to Heathrow via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from Sri Lanka to Heathrow?

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

Can Cheapflights find flights from Sri Lanka to Heathrow with no change fees?

Need flexible booking options for your flight to Heathrow from Sri Lanka? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from Sri Lanka to Heathrow become cheaper?

Yes, Cheapflights offers price alerts on Sri Lanka to Heathrow 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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