AirHint found the following cheapest return flights from Washington (DCA) to Manila (MNL) in August 2025 (see full year).

Return flights

13 Aug - 22 Sep	Air Canada
26 Aug - 09 Sep	United
12 Aug - 23 Sep	ANA
12 Aug - 16 Sep	United
12 Aug - 22 Sep	United
14 Aug - 21 Aug	United
17 Aug - 01 Sep	Alaska Airlines
05 Aug - 20 Aug	Alaska Airlines
10 Aug - 22 Sep	Alaska Airlines
07 Aug - 20 Aug	Korean Air
08 Aug - 20 Aug	Alaska Airlines
08 Aug - 22 Aug	Hawaiian Airlines
08 Aug - 21 Aug	Hawaiian Airlines
07 Aug - 18 Aug	Alaska Airlines
08 Aug - 18 Aug	Alaska Airlines
02 Aug - 09 Aug	Alaska Airlines
08 Aug - 17 Aug	Hawaiian Airlines

Also check the deals for one-way flights from Washington to Manila in August.

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 Manila in August from 644€

Return flights