Cheapest return flights from London to Colombo in September from $694

Best time to book flights for London (LHR) to Colombo (CMB) flights at AirHint

AirHint found the following cheapest return flights from London (LHR) to Colombo (CMB) in September 2025 (see full year).

Return flights

29 Sep - 22 Oct British Airways
23 Sep - 30 Sep British Airways
15 Sep - 30 Sep British Airways
15 Sep - 15 Oct British Airways
14 Sep - 30 Sep British Airways
15 Sep - 29 Sep British Airways
16 Sep - 08 Oct British Airways
15 Sep - 01 Oct British Airways
18 Sep - 22 Sep British Airways
16 Sep - 22 Sep British Airways
10 Sep - 24 Sep British Airways
10 Sep - 23 Sep British Airways
23 Sep - 08 Oct Gulf Air
02 Sep - 30 Sep British Airways
13 Sep - 01 Oct British Airways
11 Sep - 24 Sep Air India
09 Sep - 07 Oct British Airways
21 Sep - 03 Oct Qatar Airways
22 Sep - 01 Oct Air India
09 Sep - 08 Oct Air India

Also check the deals for one-way flights from London to Colombo in September.

Skyscanner

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

Book a cheap hotel in Colombo

Cheap car rent in Colombo