PHL - BIO

$423 Find Cheap Flights from Philadelphia to Bilbao - Compare and Save

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1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$547
Typical prices: $673-$986
Finnair
Fri 10/12Sun 10/21
PHL - BIO • 1 stop
Cheapest one-way
$423
Typical prices: $451-$686
Multiple Airlines
Sat 12/15
PHL - BIO • 2 stops
Nonstop flights
Not available
There are currently no direct flights between Philadelphia and Bilbao. You'll need to take a connecting flight to reach the destination.
Insights
Insights
When to travel
February
Cheapest • 35% price drop
June
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Frankfurt am Main (FRA)
Cheapest • Avg $780 (round-trip)
Barcelona-El Prat (BCN)
Shortest trip • 12h 19m (one-way)
Insights
Insights
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Booking Insights
Flight Deals

Cheap Flights from Philadelphia to Bilbao (PHL-BIO)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Philadelphia to Bilbao

Mon, Oct 12 - Wed, Oct 21
Finnair Logo
8:20 pm - 11:15 pmPHL  Philadelphia-BIO Bilbao
20h 55m1 stop Madrid Barajas
Finnair Logo
6:45 am - 5:25 pmBIO  Bilbao-PHL Philadelphia
16h 40m1 stop Madrid Barajas
$547Finnair
Mon, Oct 12 - Wed, Oct 21
Multiple Airlines Logo
12:05 pm - 8:30 amPHL  Philadelphia-BIO Bilbao
14h 25m2 stops Charlotte Douglas Madrid Barajas
Multiple Airlines Logo
6:45 am - 5:25 pmBIO  Bilbao-PHL Philadelphia
16h 40m1 stop Madrid Barajas
$553Multiple Airlines
Tue, Mar 9 - Wed, Mar 17
British Airways Logo
10:25 am - 12:50 pmPHL  Philadelphia-BIO Bilbao
20h 25m2 stops Miami Madrid Barajas
British Airways Logo
9:15 am - 4:50 pmBIO  Bilbao-PHL Philadelphia
12h 35m1 stop Madrid Barajas
$562British Airways
Mon, Oct 12 - Wed, Oct 21
Multiple Airlines Logo
8:20 pm - 11:15 pmPHL  Philadelphia-BIO Bilbao
20h 55m1 stop Madrid Barajas
Multiple Airlines Logo
6:45 am - 5:25 pmBIO  Bilbao-PHL Philadelphia
16h 40m1 stop Madrid Barajas
$562Multiple Airlines
Thu, Nov 5 - Thu, Nov 12
Iberia Logo
4:25 pm - 12:50 pmPHL  Philadelphia-BIO Bilbao
14h 25m2 stops Boston Logan Intl Madrid Barajas
Iberia Logo
5:05 pm - 4:15 pmBIO  Bilbao-PHL Philadelphia
29h 10m1 stop London Heathrow
$613Iberia
Thu, Nov 5 - Thu, Nov 12
Iberia Logo
4:25 pm - 12:50 pmPHL  Philadelphia-BIO Bilbao
14h 25m2 stops Boston Logan Intl Madrid Barajas
Iberia Logo
6:45 am - 10:30 pmBIO  Bilbao-PHL Philadelphia
21h 45m2 stops Madrid Barajas Boston Logan Intl
$617Iberia
Thu, Nov 5 - Thu, Nov 12
Lufthansa Logo
5:40 pm - 5:00 pmPHL  Philadelphia-BIO Bilbao
17h 20m1 stop Frankfurt am Main
Lufthansa Logo
6:45 am - 4:05 pmBIO  Bilbao-PHL Philadelphia
15h 20m1 stop Frankfurt am Main
$650Lufthansa
Thu, Oct 8 - Wed, Oct 14
Lufthansa Logo
5:40 pm - 11:25 pmPHL  Philadelphia-BIO Bilbao
23h 45m2 stops Frankfurt am Main Munich Franz Josef Strauss
Lufthansa Logo
6:50 am - 4:05 pmBIO  Bilbao-PHL Philadelphia
15h 15m1 stop Frankfurt am Main
$671Lufthansa
Thu, Oct 8 - Wed, Oct 14
Lufthansa Logo
5:40 pm - 11:25 pmPHL  Philadelphia-BIO Bilbao
23h 45m2 stops Frankfurt am Main Munich Franz Josef Strauss
Lufthansa Logo
7:15 am - 4:05 pmBIO  Bilbao-PHL Philadelphia
14h 50m2 stops Munich Franz Josef Strauss Frankfurt am Main
$688Lufthansa
Sat, Feb 20 - Thu, Feb 25
Iberia Logo
9:02 pm - 12:50 pmPHL  Philadelphia-BIO Bilbao
33h 48m2 stops Chicago O'Hare Intl Madrid Barajas
Iberia Logo
1:45 pm - 4:15 pmBIO  Bilbao-PHL Philadelphia
32h 30m1 stop London Heathrow
$768Iberia
Booking Insights

Price, demand and travel trends for Philadelphia to Bilbao flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

How much is a round-trip flight from Philadelphia to Bilbao?

Round-trip flights from Philadelphia to Bilbao typically range from $673 to $986. The lowest price found in the past 5 days was $547, on Finnair.

What's the cheapest day of the week to fly from Philadelphia to Bilbao?

Based on deals KAYAK users found in the last 12 months, Wednesday is the cheapest day of the week to fly from Philadelphia to Bilbao. It’s 33% cheaper than the average day, while Sunday is the most expensive, with prices 23% higher.

What’s the cheapest month to fly from Philadelphia to Bilbao?

•February is the cheapest month to fly from Philadelphia to Bilbao at $590 round-trip.
•December ($2,365) and August ($1,118) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 300% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

Find deals

Key details for Philadelphia to Bilbao flights

Low season

January

Cheapest flight

$423
Beat the crowds with an average 56% drop in travelers.
The most popular month to fly with an average 4% increase in travelers.
One-way flight from Philadelphia to Bilbao

When to book flights from Philadelphia to Bilbao

Are your dates flexible? Find out the best times to travel from Philadelphia to Bilbao based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Your Philadelphia to Bilbao flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

  • What cabin classes can I book on flights from Philadelphia to Bilbao?

    Two cabin classes are available on flights from Philadelphia to Bilbao:

    • Economy Class
    • Premium Economy Class

  • How long is a flight from Philadelphia to Bilbao?

    A nonstop flight from Philadelphia to Bilbao takes 00m, covering 3,622 miles.

  • Do I need a passport to fly from Philadelphia to Bilbao?

    Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

  • How much should I expect to pay for a Philadelphia to Bilbao flight?

    Round-trip flights from Philadelphia to Bilbao range from $673 to $986, with an average of $902 over the past 12 months. Anything below $673 counts as a good deal.

  • How are flight prices from Philadelphia to Bilbao looking right now?

    One-way fares from Philadelphia to Bilbao are currently lower than usual. Average one-way flight prices are about $477, which is 29% below the typical average for this route.

  • What car rental options are available at Bilbao Airport (BIO)?

    Bilbao Airport (BIO) hosts 5 major car rental companies, with daily rates starting from around $2 for economy cars. Top options include:

    • Record go
    • Goldcar Rental SP
    • CLICK RENT
    • Rentbycar
    • Centauro

  • Which airports can I use when flying from Philadelphia to Bilbao?

    Flights from Philadelphia to Bilbao usually depart from Philadelphia (PHL) and arrive at Bilbao (BIO).

  • Which airports do connecting flights from Philadelphia to Bilbao pass through?

    One-stop flights from Philadelphia to Bilbao most commonly connect through:

    • Madrid Barajas (MAD) - 55% of one-stop connections
    • Frankfurt am Main (FRA) - 44% of one-stop connections
    • Barcelona-El Prat (BCN) - 2% of one-stop connections

  • Can I save money by using flexible dates for flights from Philadelphia to Bilbao?

    Yes. Flexible dates can save you up to 46% on flights from Philadelphia to Bilbao. Wednesday is the cheapest departure day at $605 round-trip on average, while Sunday is the most expensive at $1,117, a difference of $512.

    KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • How much time can I save by choosing a different layover airport from Philadelphia to Bilbao?

    Flying via Barcelona-El Prat (BCN) gives the shortest average 1-stop total travel time at 12h 19m, compared with 13h 32m via Madrid Barajas (MAD) and 14h 35m via Frankfurt am Main (FRA).

  • What is the time difference between Philadelphia and Bilbao?

    Bilbao is 6 hours ahead of Philadelphia (Central European Time vs Eastern Time). Plan for the time shift when scheduling connections or first-day activities.

Your guide to booking Philadelphia to Bilbao flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates are flexible, aim for a Wednesday departure and avoid flying on Sunday. On this route, Wednesday flights average $605, about $512 less than Sunday fares (46% savings) based on the last 12 months.
  • If you can choose when to travel, plan your Philadelphia to Bilbao trip for February. Fares historically average $590 round-trip in that month - typically $1,775 less than the most expensive month, which is December (based on the last 12 months).

More options for your flight from Philadelphia to Bilbao

Complete your trip to Bilbao with a hotel stay or car rental

Car rentals in Bilbao
Hotels in Bilbao
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