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

Return flights

16 Sep - 08 Oct	Air Canada
08 Sep - 15 Sep	Alaska Airlines
16 Sep - 19 Sep	China Airlines
30 Sep - 27 Oct	China Airlines
09 Sep - 07 Oct	China Airlines
15 Sep - 07 Oct	China Airlines
30 Sep - 14 Oct	China Airlines
21 Sep - 30 Sep	Alaska Airlines
25 Sep - 11 Oct	Air Canada
07 Sep - 14 Sep	China Airlines
04 Sep - 18 Sep	Air Canada
11 Sep - 17 Sep	Cathay Pacific
16 Sep - 21 Sep	Air Canada
06 Sep - 18 Sep	Air Canada
22 Sep - 19 Oct	Cathay Pacific
18 Sep - 03 Oct	China Airlines
19 Sep - 26 Sep	China Airlines
06 Sep - 17 Sep	Air Canada
27 Sep - 25 Oct	China Airlines
28 Sep - 11 Oct	Cathay Pacific

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

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.

Book a cheap hotel in Manila

Cheap car rent in Manila

Cheapest return flights from Washington to Manila in September from $913

Return flights