Cheapest return IAD–ATH flights, July

AirHint found the following cheapest return flights from Washington (IAD) to Athens (ATH) in July 2026 (see full year).

Return flights

14 Jul - 21 Jul Frontier Airlines
14 Jul - 22 Jul Frontier Airlines
14 Jul - 19 Aug Frontier Airlines
14 Jul - 28 Jul Frontier Airlines
14 Jul - 23 Jul Frontier Airlines
21 Jul - 28 Jul Frontier Airlines
14 Jul - 27 Jul Frontier Airlines
17 Jul - 27 Jul Allegiant Air
14 Jul - 26 Jul Frontier Airlines
04 Jul - 11 Jul Frontier Airlines
04 Jul - 17 Jul Frontier Airlines
17 Jul - 18 Aug Allegiant Air
17 Jul - 17 Aug Allegiant Air
25 Jul - 03 Aug TAP
31 Jul - 11 Aug Icelandair
23 Jul - 05 Aug Allegiant Air
22 Jul - 03 Aug TAP
26 Jul - 19 Aug Porter Airlines (Canada) Ltd
19 Jul - 17 Aug Allegiant Air
22 Jul - 01 Aug Frontier Airlines

Also check the deals for one-way flights from Washington to Athens in July.

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