AirHint found the following cheapest return flights from Washington (IAD) to Ho Chi Minh City (SGN) in October 2025 (see full year).

Return flights

29 Oct - 26 Nov	Turkish Airlines
14 Oct - 03 Nov	Korean Air
15 Oct - 12 Nov	Korean Air
15 Oct - 05 Nov	Korean Air
15 Oct - 17 Nov	Korean Air
15 Oct - 30 Oct	Korean Air
15 Oct - 06 Nov	Korean Air
14 Oct - 13 Nov	Korean Air
14 Oct - 14 Nov	Korean Air
13 Oct - 13 Nov	Korean Air
02 Oct - 29 Oct	Turkish Airlines
07 Oct - 29 Oct	Turkish Airlines
07 Oct - 12 Nov	Turkish Airlines
01 Oct - 07 Oct	United
01 Oct - 22 Oct	United
01 Oct - 26 Oct	United
06 Oct - 27 Oct	United
02 Oct - 09 Oct	Turkish Airlines
08 Oct - 17 Oct	Turkish Airlines
07 Oct - 24 Oct	Korean Air

Also check the deals for one-way flights from Washington to Ho Chi Minh City 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 Ho Chi Minh City in October from $748

Return flights