$449 Cheap Flights from Pittsburgh (PIT) to Bilbao (BIO)

View $449 flight on Sat, Dec 6, 2025Opens in a new window

Popular airlines from Pittsburgh Intl. Airport (PIT) to Bilbao Airport (BIO)

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Cheap Flights from Pittsburgh to Bilbao (PIT-BIO)

Prices were available within the past 7 days and start at $449 for one-way flights and $532 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Mon, Dec 1 - Mon, Dec 8
PIT
Pittsburgh
BIO
Bilbao
$532 Roundtrip, found 5 days ago
$532
Roundtrip
found 5 days ago
Select United flight, departing Mon, Dec 1 from Pittsburgh to Bilbao, returning Mon, Dec 8, priced at $532 found 5 days ago
Lufthansa
Wed, Dec 3 - Fri, Jan 16
PIT
Pittsburgh
BIO
Bilbao
$532 Roundtrip, found 3 days ago
$532
Roundtrip
found 3 days ago
Select Lufthansa flight, departing Wed, Dec 3 from Pittsburgh to Bilbao, returning Fri, Jan 16, priced at $532 found 3 days ago
Lufthansa
Fri, Dec 5 - Mon, Dec 15
PIT
Pittsburgh
BIO
Bilbao
$532 Roundtrip, found 1 day ago
$532
Roundtrip
found 1 day ago
Select Lufthansa flight, departing Fri, Dec 5 from Pittsburgh to Bilbao, returning Mon, Dec 15, priced at $532 found 1 day ago
Lufthansa
Wed, Dec 3 - Fri, Jan 16
PIT
Pittsburgh
BIO
Bilbao
$533 Roundtrip, found 3 days ago
$533
Roundtrip
found 3 days ago
Select Lufthansa flight, departing Wed, Dec 3 from Pittsburgh to Bilbao, returning Fri, Jan 16, priced at $533 found 3 days ago
United
Wed, Dec 31 - Mon, Jan 12
PIT
Pittsburgh
BIO
Bilbao
$534 Roundtrip, found 6 hours ago
$534
Roundtrip
found 6 hours ago
Select United flight, departing Wed, Dec 31 from Pittsburgh to Bilbao, returning Mon, Jan 12, priced at $534 found 6 hours ago
Lufthansa
Fri, Dec 5 - Mon, Dec 8
PIT
Pittsburgh
BIO
Bilbao
$534 Roundtrip, found 1 day ago
$534
Roundtrip
found 1 day ago
Select Lufthansa flight, departing Fri, Dec 5 from Pittsburgh to Bilbao, returning Mon, Dec 8, priced at $534 found 1 day ago
Delta
Wed, Dec 3 - Mon, Dec 8
PIT
Pittsburgh
BIO
Bilbao
$534 Roundtrip, found 5 days ago
$534
Roundtrip
found 5 days ago
Select Delta flight, departing Wed, Dec 3 from Pittsburgh to Bilbao, returning Mon, Dec 8, priced at $534 found 5 days ago
United
Mon, Dec 1 - Sun, Dec 7
PIT
Pittsburgh
BIO
Bilbao
$535 Roundtrip, found 5 days ago
$535
Roundtrip
found 5 days ago
Select United flight, departing Mon, Dec 1 from Pittsburgh to Bilbao, returning Sun, Dec 7, priced at $535 found 5 days ago
Air Canada
Wed, Dec 3 - Fri, Jan 16
PIT
Pittsburgh
BIO
Bilbao
$547 Roundtrip, found 3 days ago
$547
Roundtrip
found 3 days ago
Select Air Canada flight, departing Wed, Dec 3 from Pittsburgh to Bilbao, returning Fri, Jan 16, priced at $547 found 3 days ago
Iberia
Wed, Dec 3 - Fri, Jan 16
PIT
Pittsburgh
BIO
Bilbao
$554 Roundtrip, found 3 days ago
$554
Roundtrip
found 3 days ago
Select Iberia flight, departing Wed, Dec 3 from Pittsburgh to Bilbao, returning Fri, Jan 16, priced at $554 found 3 days ago

Frequently asked questions

How much does a flight from Pittsburgh Intl. Airport (PIT) to Bilbao Airport (BIO) cost?
Grab a cheap one-way flight from $449 or cheap return flight from $532 from Pittsburgh Intl. Airport (PIT) to Bilbao Airport (BIO) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Pittsburgh Intl. Airport (PIT) to Bilbao Airport (BIO)?
December is the most affordable month to fly from PIT to BIO. Traveling during an off-peak travel window is often the key to finding better fares.
What is the cheapest airline that flies from Pittsburgh Intl. Airport (PIT) to Bilbao Airport (BIO)?
Expedia's filter tool lets you easily compare travel time, airlines and fares all in one place. Select your preferences, then sort by "Price (lowest to highest)" to find out which carrier offers the cheapest PIT to BIO flight.
How many flights per day from Pittsburgh Intl. Airport (PIT) to Bilbao Airport (BIO)?
There aren't any daily direct flights departing from Pittsburgh Intl. Airport (PIT) to Bilbao Airport (BIO). But you can book flights with layovers. Filter your search on Expedia to include one or more stops, and you'll be cruising above the clouds in no time at all.
What day of the week has the most flights from PIT to BIO?
Typically you'll find the most flight options available on a Friday. Tuesdays tend to be the quietest.* However, this can vary depending on the season, carrier and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Pittsburgh Intl. Airport (PIT) to Bilbao Airport (BIO)?
To avoid potential delays on the Pittsburgh Intl. Airport (PIT) to Bilbao Airport (BIO) route, travel before 3 PM. Departures after this hour have a 22% higher chance of being canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Pittsburgh Intl. Airport (PIT) to Bilbao Airport (BIO) last-minute?
Holding off until just before your trip to book your flight from PIT to BIO often results in higher prices. While you might find some last-minute discounts, they're not always guaranteed. Keep your travel plans flexible to maximize your chances of getting a bargain.
Is it cheaper to book a PIT to BIO flight and hotel package?
You'll typically save money by securing a PIT to BIO flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's simple to manage it all in one place. Once you've selected your preferred accommodations and flights, consider other add-ons like tours, car rentals and activities.
Can I cancel or change the date of my flight from Pittsburgh Intl. Airport (PIT) to Bilbao Airport (BIO)?
You can usually cancel or reschedule your PIT to BIO flight. However, for bookings made more than 24 hours ago, additional charges may apply. Check your airline's policies in your itinerary to see what changes are possible and if any costs are involved. You'll also find further details on our Customer Service portal.

Travel information

Origin airport
Pittsburgh Intl.
Destination airport
Bilbao
Airlines serving
Aer Lingus, Air Canada, Brussels Airlines, Iberia, Lufthansa, Swiss International Air Lines, TAP Portugal, Turkish Airlines
Roundtrip price
$531
Distance
3833 mi

Book with confidence

Pittsburgh to Bilbao Flights

The cheapest times to fly from Pittsburgh to Bilbao

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Pittsburgh to Bilbao are during the month of December. You can find some of the cheapest flights from Pittsburgh to Bilbao with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Pittsburgh to Bilbao

Sunday is one of the best days to book for cheap flights from Pittsburgh to Bilbao: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Pittsburgh to Bilbao

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Pittsburgh to Bilbao in 2025. You can also book with separate airlines for your outbound and return journeys, from $449 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Pittsburgh to Bilbao flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Pittsburgh to Bilbao airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Pittsburgh to Bilbao Flights

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*Available to One Key members.