Cheapest return flights from Delhi to Colombo in September from $231

Best time to book flights for Delhi (DEL) to Colombo (CMB) flights at AirHint

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

Return flights

18 Sep - 25 Sep Air India
17 Sep - 20 Sep Air India
20 Sep - 27 Sep Air India
01 Sep - 04 Sep Air India
03 Sep - 10 Sep Air India
16 Sep - 20 Sep Air India
11 Sep - 16 Sep Air India
17 Sep - 23 Sep Air India
10 Sep - 19 Sep Air India
12 Sep - 19 Sep Air India
26 Sep - 06 Oct SriLankan Airlines direct
25 Sep - 07 Oct Air India
29 Sep - 04 Oct Air India
28 Sep - 05 Oct Air India
30 Sep - 05 Oct Air India
30 Sep - 04 Oct Air India
29 Sep - 04 Oct SriLankan Airlines direct
30 Sep - 04 Oct SriLankan Airlines direct
25 Sep - 07 Oct SriLankan Airlines direct
28 Sep - 05 Oct SriLankan Airlines direct

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

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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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