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

Return flights

23 Sep - 30 Sep	Royal Jordanian
23 Sep - 04 Oct	Royal Jordanian
30 Sep - 13 Oct	Royal Jordanian
23 Sep - 05 Oct	Royal Jordanian
28 Sep - 11 Oct	Royal Jordanian
21 Sep - 28 Sep	Royal Jordanian
27 Sep - 07 Oct	Frontier Airlines
22 Sep - 01 Oct	Etihad Airways
22 Sep - 05 Oct	Etihad Airways
22 Sep - 03 Oct	Etihad Airways
23 Sep - 01 Oct	Etihad Airways
29 Sep - 10 Oct	Etihad Airways

Also check the deals for one-way flights from Washington to Beirut 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 Beirut

Cheap car rent in Beirut

Cheapest return flights from Washington to Beirut in September from 565€

Return flights