Cheapest return flights from Washington to Singapore in October from $969

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

Return flights

04 Oct - 19 Oct IndiGo
12 Oct - 20 Oct Etihad Airways
11 Oct - 20 Oct Etihad Airways
24 Oct - 30 Oct Frontier Airlines
19 Oct - 03 Nov Etihad Airways
06 Oct - 16 Oct United
15 Oct - 23 Oct Turkish Airlines
01 Oct - 06 Oct Qatar Airways
27 Oct - 31 Oct Delta
20 Oct - 24 Oct Delta

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

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.

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