Cheap flights from Denver to Kastos

View AU$702 flight on Sun, 7 Dec. 2025Opens in a new window

Popular airlines from Denver to Kastos

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Cheap Flights from Denver (DEN) to Kastos (ATH)

Prices were available within the past 7 days for one-way flights and round trip tickets for the period specified. Prices and availability are subject to change. Additional terms apply.

Lufthansa
Sun, 7 Dec. - Tue, 16 Dec.
DEN
Denver
ATH
Athens
AU$925 Return, found 1 day ago
AU$925
Return
found 1 day ago
Select Lufthansa flight, departing Sun, 7 Dec. from Denver to Athens, returning Tue, 16 Dec., priced at AU$925 found 1 day ago
United
Sun, 7 Dec. - Tue, 16 Dec.
DEN
Denver
ATH
Athens
AU$925 Return, found 1 day ago
AU$925
Return
found 1 day ago
Select United flight, departing Sun, 7 Dec. from Denver to Athens, returning Tue, 16 Dec., priced at AU$925 found 1 day ago
British Airways
Sun, 7 Dec. - Mon, 15 Dec.
DEN
Denver
ATH
Athens
AU$961 Return, found 1 day ago
AU$961
Return
found 1 day ago
Select British Airways flight, departing Sun, 7 Dec. from Denver to Athens, returning Mon, 15 Dec., priced at AU$961 found 1 day ago
American Airlines
Sun, 7 Dec. - Mon, 15 Dec.
DEN
Denver
ATH
Athens
AU$1,218 Return, found 1 day ago
AU$1,218
Return
found 1 day ago
Select American Airlines flight, departing Sun, 7 Dec. from Denver to Athens, returning Mon, 15 Dec., priced at AU$1,218 found 1 day ago
Delta
Sun, 7 Dec. - Mon, 15 Dec.
DEN
Denver
ATH
Athens
AU$1,237 Return, found 1 day ago
AU$1,237
Return
found 1 day ago
Select Delta flight, departing Sun, 7 Dec. from Denver to Athens, returning Mon, 15 Dec., priced at AU$1,237 found 1 day ago
KLM
Sun, 7 Dec. - Tue, 16 Dec.
DEN
Denver
ATH
Athens
AU$1,259 Return, found 1 day ago
AU$1,259
Return
found 1 day ago
Select KLM flight, departing Sun, 7 Dec. from Denver to Athens, returning Tue, 16 Dec., priced at AU$1,259 found 1 day ago

Find the cheapest month to fly from Denver (DEN) to Athens (ATH)

November is typically the cheapest month to fly

From AU$736 - AU$2,103 per traveller.

Graph displaying average flight prices per month

*Available to Expedia members.