Cheap flights from Porto to Sifnos

View AU$153 flight on Wed, 20 May 2026Opens in a new window

Popular airlines from Porto to Sifnos

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Cheap Flights from Porto (OPO) to Sifnos (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
Fri, 20 Feb. - Mon, 23 Feb.
OPO
Porto
ATH
Athens
AU$341 Return, found 2 days ago
AU$341
Return
found 2 days ago
Select Lufthansa flight, departing Fri, 20 Feb. from Porto to Athens, returning Mon, 23 Feb., priced at AU$341 found 2 days ago
Lufthansa
Fri, 20 Feb. - Mon, 23 Feb.
OPO
Porto
ATH
Athens
AU$345 Return, found 2 days ago
AU$345
Return
found 2 days ago
Select Lufthansa flight, departing Fri, 20 Feb. from Porto to Athens, returning Mon, 23 Feb., priced at AU$345 found 2 days ago
Swiss International Air Lines
Fri, 20 Feb. - Mon, 23 Feb.
OPO
Porto
ATH
Athens
AU$381 Return, found 2 days ago
AU$381
Return
found 2 days ago
Select Swiss International Air Lines flight, departing Fri, 20 Feb. from Porto to Athens, returning Mon, 23 Feb., priced at AU$381 found 2 days ago
Air Serbia
Fri, 20 Feb. - Mon, 23 Feb.
OPO
Porto
ATH
Athens
AU$488 Return, found 2 days ago
AU$488
Return
found 2 days ago
Select Air Serbia flight, departing Fri, 20 Feb. from Porto to Athens, returning Mon, 23 Feb., priced at AU$488 found 2 days ago
Austrian Airlines
Tue, 9 Sep. - Wed, 17 Sep.
OPO
Porto
ATH
Athens
AU$539 Return, found 1 day ago
AU$539
Return
found 1 day ago
Select Austrian Airlines flight, departing Tue, 9 Sep. from Porto to Athens, returning Wed, 17 Sep., priced at AU$539 found 1 day ago
Brussels Airlines
Fri, 20 Feb. - Mon, 23 Feb.
OPO
Porto
ATH
Athens
AU$603 Return, found 2 days ago
AU$603
Return
found 2 days ago
Select Brussels Airlines flight, departing Fri, 20 Feb. from Porto to Athens, returning Mon, 23 Feb., priced at AU$603 found 2 days ago

Find the cheapest month to fly from Porto (OPO) to Athens (ATH)

May is typically the cheapest month to fly

From AU$262 - AU$567 per traveller.

Graph displaying average flight prices per month

*Available to Expedia members.