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

Return flights

06 Sep - 10 Sep	Frontier Airlines
04 Sep - 09 Sep	Copa
05 Sep - 10 Sep	Copa
03 Sep - 08 Sep	United	direct
04 Sep - 09 Sep	United	direct
25 Sep - 29 Sep	United	direct
11 Sep - 15 Sep	United	direct
11 Sep - 25 Sep	United	direct
03 Sep - 17 Sep	United	direct
04 Sep - 18 Sep	United	direct
17 Sep - 01 Oct	United	direct
18 Sep - 02 Oct	United	direct
22 Sep - 06 Oct	United	direct
23 Sep - 07 Oct	United	direct
24 Sep - 08 Oct	United	direct
26 Sep - 10 Oct	United	direct
19 Sep - 03 Oct	United	direct
21 Sep - 05 Oct	United	direct
28 Sep - 12 Oct	United
29 Sep - 13 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 378€

Return flights