Cheap flights from Bilbao to Upper Town from CA $304

View CA $304 flight on Sun, Aug. 31, 2025Opens in a new window

Popular airlines from Bilbao to Upper Town

  • 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 30% 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 Upper Town (ZAG)

Prices were available within the past 7 days and start at CA $304 for one-way flights and CA $422 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Lufthansa
Sun, Aug. 31 - Wed, Sep. 24
BIO
Bilbao
ZAG
Zagreb
CA $422 Roundtrip, found 6 days ago
CA $422
Roundtrip
found 6 days ago
Select Lufthansa flight, departing Sun, Aug. 31 from Bilbao to Zagreb, returning Wed, Sep. 24, priced at CA $422 found 6 days ago
Lufthansa
Sun, Aug. 31 - Wed, Sep. 24
BIO
Bilbao
ZAG
Zagreb
CA $446 Roundtrip, found 6 days ago
CA $446
Roundtrip
found 6 days ago
Select Lufthansa flight, departing Sun, Aug. 31 from Bilbao to Zagreb, returning Wed, Sep. 24, priced at CA $446 found 6 days ago
Lufthansa
Sun, Aug. 31 - Wed, Sep. 24
BIO
Bilbao
ZAG
Zagreb
CA $463 Roundtrip, found 6 days ago
CA $463
Roundtrip
found 6 days ago
Select Lufthansa flight, departing Sun, Aug. 31 from Bilbao to Zagreb, returning Wed, Sep. 24, priced at CA $463 found 6 days ago
Austrian Airlines
Sun, Aug. 31 - Wed, Sep. 24
BIO
Bilbao
ZAG
Zagreb
CA $509 Roundtrip, found 6 days ago
CA $509
Roundtrip
found 6 days ago
Select Austrian Airlines flight, departing Sun, Aug. 31 from Bilbao to Zagreb, returning Wed, Sep. 24, priced at CA $509 found 6 days ago
Swiss International Air Lines
Sun, Aug. 31 - Wed, Sep. 24
BIO
Bilbao
ZAG
Zagreb
CA $694 Roundtrip, found 6 days ago
CA $694
Roundtrip
found 6 days ago
Select Swiss International Air Lines flight, departing Sun, Aug. 31 from Bilbao to Zagreb, returning Wed, Sep. 24, priced at CA $694 found 6 days ago
Turkish Airlines
Sun, Aug. 31 - Wed, Sep. 24
BIO
Bilbao
ZAG
Zagreb
CA $738 Roundtrip, found 6 days ago
CA $738
Roundtrip
found 6 days ago
Select Turkish Airlines flight, departing Sun, Aug. 31 from Bilbao to Zagreb, returning Wed, Sep. 24, priced at CA $738 found 6 days ago
*Available to Expedia members.