Philadelphia (PHL) to Bilbao (BIO) flight deal in economy from $351

AAAmerican Airlines

One Way•Economy

PHL

Philadelphia International Airport

Philadelphia, United States

BIO

Bilbao Airport

Bilbao, Spain

$652 USD

-46%$351 USD

Verified 13 days ago

November 2026

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2627282930311$3512$3553$3554$3555$7006$7227$4058$3519$35110$35111$35512$40113$72214$40515$35516$35117$35118$35519$40120$78921$44522$38523$35124$35125$35526$40127$72228$40529$35130$3511$6502$6543$1,3764$9945$4056$915

Fair Availability

22% of dates checked are available within 10% of the lowest price

Sunday, November 15th, 2026

Outbound Flights

11h 59m·2 stops

$355 USD

PHLNov 15 18:51

→

BOSNov 15 20:17

AA 1232Airbus A321

1h 13m layover

BOSNov 15 21:30

→

MADNov 16 10:30

IB 346Airbus A321neo

1h 15m layover

MADNov 16 11:45

→

BIONov 16 12:50

IB 433Airbus A320

11h·1 stop

$761 USD

PHLNov 15 19:50

→

MADNov 16 08:55

AA 740Boeing 787

2h 50m layover

MADNov 16 11:45

→

BIONov 16 12:50

IB 433Airbus A320

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