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

Return flights

03 Sep - 09 Sep	jetBlue
05 Sep - 08 Sep	jetBlue
16 Sep - 20 Sep	jetBlue
11 Sep - 15 Sep	jetBlue
03 Sep - 17 Sep	jetBlue
10 Sep - 13 Sep	jetBlue
01 Sep - 04 Sep	jetBlue
16 Sep - 23 Sep	Air Canada
19 Sep - 22 Sep	jetBlue
19 Sep - 21 Sep	jetBlue
22 Sep - 06 Oct	United
23 Sep - 07 Oct	United
21 Sep - 05 Oct	United
26 Sep - 10 Oct	United
20 Sep - 04 Oct	United
26 Sep - 01 Oct	Air Canada
19 Sep - 03 Oct	United
24 Sep - 08 Oct	United
29 Sep - 13 Oct	United
27 Sep - 11 Oct	United

Also check the deals for one-way flights from Washington to Punta Cana 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.

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Cheapest return flights from Washington to Punta Cana in September from $406

Return flights