AirHint found the following cheapest return flights from Denver (DEN) to Athens (ATH) in November 2025 (see full year).

Return flights

05 Nov - 12 Nov	Air Canada
12 Nov - 19 Nov	Air Canada
04 Nov - 18 Nov	Air Canada
18 Nov - 25 Nov	United
19 Nov - 26 Nov	United
28 Nov - 05 Dec	Icelandair
11 Nov - 18 Nov	United
03 Nov - 10 Nov	British Airways
04 Nov - 11 Nov	British Airways
10 Nov - 17 Nov	British Airways
26 Nov - 03 Dec	British Airways
02 Nov - 09 Nov	Air Canada
30 Nov - 07 Dec	British Airways
27 Nov - 04 Dec	United
24 Nov - 01 Dec	British Airways
29 Nov - 06 Dec	Delta

Also check the deals for one-way flights from Denver to Athens in November.

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 Denver to Athens in November from $573

Return flights