AirHint found the following cheapest return flights from Washington (IAD) to Delhi (DEL) in October 2025 (see full year).

Return flights

20 Oct - 20 Nov	Etihad Airways
01 Oct - 11 Oct	Delta
01 Oct - 08 Oct	Delta
06 Oct - 13 Oct	Delta
27 Oct - 12 Nov	United
16 Oct - 31 Oct	Etihad Airways
01 Oct - 31 Oct	Etihad Airways
16 Oct - 01 Nov	Etihad Airways
03 Oct - 01 Nov	Etihad Airways
05 Oct - 01 Nov	Etihad Airways
15 Oct - 04 Nov	Etihad Airways
16 Oct - 26 Oct	Etihad Airways
02 Oct - 14 Oct	Etihad Airways
19 Oct - 01 Nov	Etihad Airways
16 Oct - 05 Nov	Etihad Airways
05 Oct - 02 Nov	Etihad Airways
09 Oct - 02 Nov	Etihad Airways
02 Oct - 09 Oct	Virgin Atlantic
04 Oct - 11 Oct	Virgin Atlantic
03 Oct - 10 Oct	IndiGo

Also check the deals for one-way flights from Washington to Delhi in October.

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 Washington to Delhi in October from 587€

Return flights