Cheap flights from Bilbao to Aliados

View AU$94 flight on Sun, 7 Sep. 2025Opens in a new window

Popular airlines from Bilbao to Aliados

  • Plan, book, fly with confidence

  • trending down icon

    Be in the know

    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon

    Book smarter

    Save up to 35% on select hotels after you book a flight*
  • payments icon

    Earn twice

    Earn your airline miles on top of our rewards
    Sign in

Cheap Flights from Bilbao (BIO) to Aliados (OPO)

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.

Air Europa
Thu, 15 Jan. - Thu, 22 Jan.
BIO
Bilbao
OPO
Porto
AU$229 Return, found 4 days ago
AU$229
Return
found 4 days ago
Select Air Europa flight, departing Thu, 15 Jan. from Bilbao to Porto, returning Thu, 22 Jan., priced at AU$229 found 4 days ago
Air Europa
Thu, 15 Jan. - Thu, 22 Jan.
BIO
Bilbao
OPO
Porto
AU$242 Return, found 4 days ago
AU$242
Return
found 4 days ago
Select Air Europa flight, departing Thu, 15 Jan. from Bilbao to Porto, returning Thu, 22 Jan., priced at AU$242 found 4 days ago
TAP Portugal
Sun, 17 Aug. - Tue, 26 Aug.
BIO
Bilbao
OPO
Porto
AU$249 Return, found 1 day ago
AU$249
Return
found 1 day ago
Select TAP Portugal flight, departing Sun, 17 Aug. from Bilbao to Porto, returning Tue, 26 Aug., priced at AU$249 found 1 day ago
Iberia
Thu, 15 Jan. - Thu, 22 Jan.
BIO
Bilbao
OPO
Porto
AU$256 Return, found 4 days ago
AU$256
Return
found 4 days ago
Select Iberia flight, departing Thu, 15 Jan. from Bilbao to Porto, returning Thu, 22 Jan., priced at AU$256 found 4 days ago
Lufthansa
Thu, 15 Jan. - Thu, 22 Jan.
BIO
Bilbao
OPO
Porto
AU$345 Return, found 4 days ago
AU$345
Return
found 4 days ago
Select Lufthansa flight, departing Thu, 15 Jan. from Bilbao to Porto, returning Thu, 22 Jan., priced at AU$345 found 4 days ago
Vueling Airlines
Tue, 19 Aug. - Wed, 20 Aug.
BIO
Bilbao
OPO
Porto
AU$366 Return, found 6 days ago
AU$366
Return
found 6 days ago
Select Vueling Airlines flight, departing Tue, 19 Aug. from Bilbao to Porto, returning Wed, 20 Aug., priced at AU$366 found 6 days ago

Find the cheapest month to fly from Bilbao (BIO) to Porto (OPO)

November is typically the cheapest month to fly

From AU$67 - AU$321 per traveller.

Graph displaying average flight prices per month

*Available to Expedia members.