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

Return flights

18 Sep - 21 Sep	Air India
03 Sep - 11 Sep	Air India
03 Sep - 09 Sep	Air India
10 Sep - 14 Sep	IndiGo
05 Sep - 15 Sep	IndiGo
11 Sep - 13 Sep	IndiGo
10 Sep - 13 Sep	IndiGo
09 Sep - 13 Sep	IndiGo
11 Sep - 15 Sep	IndiGo
08 Sep - 14 Sep	IndiGo
23 Sep - 02 Oct	SriLankan Airlines	direct
27 Sep - 04 Oct	Air India
15 Sep - 10 Oct	IndiGo
28 Sep - 07 Oct	IndiGo
27 Sep - 19 Oct	IndiGo
25 Sep - 02 Oct	IndiGo
29 Sep - 06 Oct	IndiGo
26 Sep - 01 Oct	IndiGo
29 Sep - 03 Oct	IndiGo
22 Sep - 03 Oct	IndiGo

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

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.

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Cheapest return flights from Bangalore to Colombo in September from 143€

Return flights