What is the cheapest airline that flies from Philadelphia to Bilbao?

Aer Lingus, Delta, and United Airlines are the most popular carriers operating from Philadelphia to Bilbao

What airlines fly to Bilbao?

United Airlines, Iberia and Air Europa are the top three most popular airlines that fly to Bilbao from Philadelphia according to our data. United Airlines is the first choice among our users, with 36% of people opting to fly with this airline when traveling to Bilbao. Keep in mind that there are 7 different airlines that fly to Bilbao on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Philadelphia Airport to Bilbao Airport?

Prices for flights from Philadelphia Airport to Bilbao Airport refresh daily.

How many operators does momondo search for flights from Philadelphia Airport to Bilbao Airport?

As of October 2026, there are 2 operators available to choose from for flights from Philadelphia Airport to Bilbao Airport.

How old do you have to be to fly from Philadelphia Airport to Bilbao Airport?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Philadelphia Airport to Bilbao Airport.

What documentation or ID do you need to fly to Bilbao Airport?

The travel and health documents you'll need for your trip to Bilbao Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Bilbao Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$399 Cheap Flights from Philadelphia to Bilbao in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Philadelphia to Bilbao

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

6:35 pm - 6:35 pmPHL Philadelphia-BIO Bilbao

18h 00m1 stop London Heathrow

1:45 pm - 4:15 pmBIO Bilbao-PHL Philadelphia

32h 30m1 stop London Heathrow

$695Iberia

Wed, Nov 11 - Wed, Nov 18

5:40 pm - 5:00 pmPHL Philadelphia-BIO Bilbao

17h 20m1 stop Frankfurt am Main

6:45 am - 4:05 pmBIO Bilbao-PHL Philadelphia

15h 20m1 stop Frankfurt am Main

$695Lufthansa

Tue, Nov 10 - Thu, Nov 26

10:30 am - 9:55 pmPHL Philadelphia-BIO Bilbao

29h 25m2 stops Washington, D.C. Dulles Intl Munich Franz Josef Strauss

6:45 am - 4:05 pmBIO Bilbao-PHL Philadelphia

15h 20m1 stop Frankfurt am Main

$696United Airlines

Tue, Nov 10 - Thu, Nov 26

4:49 pm - 4:55 pmPHL Philadelphia-BIO Bilbao

18h 06m2 stops Boston Logan Intl Madrid Barajas

5:05 pm - 5:15 pmBIO Bilbao-PHL Philadelphia

29h 10m1 stop London Heathrow

$699Iberia

Wed, Mar 10 - Thu, Mar 18

3:20 pm - 5:45 pmPHL Philadelphia-BIO Bilbao

20h 25m2 stops Montreal Pierre Elliott Trudeau Intl Munich Franz Josef Strauss

7:30 am - 2:39 pmBIO Bilbao-PHL Philadelphia

37h 09m2 stops Munich Franz Josef Strauss Montreal Pierre Elliott Trudeau Intl

$700Multiple Airlines

Wed, Nov 11 - Wed, Nov 18

9:15 am - 5:00 pmPHL Philadelphia-BIO Bilbao

25h 45m2 stops Toronto Pearson Intl Frankfurt am Main

12:25 pm - 10:56 pmBIO Bilbao-PHL Philadelphia

16h 31m2 stops Frankfurt am Main Toronto Pearson Intl

$701Multiple Airlines

Tue, Nov 10 - Thu, Nov 26

6:35 pm - 9:55 pmPHL Philadelphia-BIO Bilbao

21h 20m1 stop London Heathrow

9:15 am - 2:30 pmBIO Bilbao-PHL Philadelphia

35h 15m2 stops Madrid Barajas Miami

$705Iberia

Wed, Nov 11 - Wed, Nov 18

5:40 pm - 5:00 pmPHL Philadelphia-BIO Bilbao

17h 20m1 stop Frankfurt am Main

5:50 pm - 4:05 pmBIO Bilbao-PHL Philadelphia

28h 15m1 stop Frankfurt am Main

$739Lufthansa

Tue, Nov 10 - Wed, Nov 25

5:40 pm - 5:00 pmPHL Philadelphia-BIO Bilbao

17h 20m1 stop Frankfurt am Main

6:45 am - 4:05 pmBIO Bilbao-PHL Philadelphia

15h 20m1 stop Frankfurt am Main

$757Lufthansa

Thu, Nov 19 - Tue, Dec 8

7:40 pm - 6:50 pmPHL Philadelphia-BIO Bilbao

17h 10m1 stop Madrid Barajas

9:15 am - 3:50 pmBIO Bilbao-PHL Philadelphia

12h 35m1 stop Madrid Barajas

$831Iberia

Wed, Dec 2 - Sun, Jan 17

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Lufthansa flights from Philadelphia to Bilbao

Our best Lufthansa deals on Philadelphia to Bilbao flight tickets

Lufthansa

Nov 10

PHL5:40 pmPhiladelphia

17h 20m

1 stop

BIO5:00 pmBilbao

Nov 26

BIO6:45 amBilbao

15h 20m

1 stop

PHL4:05 pmPhiladelphia

$695

Lufthansa

Nov 10

PHL5:40 pmPhiladelphia

17h 20m

1 stop

BIO5:00 pmBilbao

Nov 25

BIO5:50 pmBilbao

28h 15m

1 stop

PHL4:05 pmPhiladelphia

$739

Lufthansa

Nov 19

PHL5:40 pmPhiladelphia

17h 20m

1 stop

BIO5:00 pmBilbao

Dec 8

BIO6:45 amBilbao

15h 20m

1 stop

PHL4:05 pmPhiladelphia

$757

United Airlines flights from Philadelphia to Bilbao

Our best United Airlines deals on Philadelphia to Bilbao flight tickets

United Airlines

Nov 10

PHL10:30 amPhiladelphia

29h 25m

2 stops

BIO9:55 pmBilbao

Nov 26

BIO6:45 amBilbao

15h 20m

1 stop

PHL4:05 pmPhiladelphia

$696

United Airlines

Nov 10

PHL5:40 pmPhiladelphia

17h 20m

1 stop

BIO5:00 pmBilbao

Nov 24

BIO6:45 amBilbao

15h 20m

1 stop

PHL4:05 pmPhiladelphia

$702

United Airlines

Nov 10

PHL6:46 pmPhiladelphia

21h 09m

2 stops

BIO9:55 pmBilbao

Nov 27

BIO6:45 amBilbao

22h 45m

2 stops

PHL11:30 pmPhiladelphia

$706

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PhiladelphiaBilbao

PHL Philadelphia - BIO Bilbao

PHLBIO

Philadelphia

Wed 11/11

6:35 pm-6:35 pm

1 stop18h 00m

Bilbao

Wed 11/18

1:45 pm-4:15 pm

1 stop32h 30m

$695

PhiladelphiaBilbao

PHL Philadelphia - BIO Bilbao

PHLBIO

Philadelphia

Tue 11/10

5:40 pm-5:00 pm

1 stop17h 20m

Bilbao

Thu 11/26

6:45 am-4:05 pm

1 stop15h 20m

$695

PhiladelphiaBilbao

PHL Philadelphia - BIO Bilbao

PHLBIO

Philadelphia

Tue 11/10

10:30 am-9:55 pm

2 stops29h 25m

Bilbao

Thu 11/26

6:45 am-4:05 pm

1 stop15h 20m

$696

PhiladelphiaBilbao

PHL Philadelphia - BIO Bilbao

PHLBIO

Philadelphia

Wed 3/10

4:49 pm-4:55 pm

2 stops18h 06m

Bilbao

Thu 3/18

5:05 pm-5:15 pm

1 stop29h 10m

$699

PhiladelphiaBilbao

PHL Philadelphia - BIO Bilbao

PHLBIO

Philadelphia

Wed 11/11

3:20 pm-5:45 pm

2 stops20h 25m

Bilbao

Wed 11/18

7:30 am-2:39 pm

2 stops37h 09m

$700

PhiladelphiaBilbao

PHL Philadelphia - BIO Bilbao

PHLBIO

Philadelphia

Tue 11/10

9:15 am-5:00 pm

2 stops25h 45m

Bilbao

Thu 11/26

12:25 pm-10:56 pm

2 stops16h 31m

$701

PhiladelphiaBilbao

PHL Philadelphia - BIO Bilbao

PHLBIO

Philadelphia

Wed 11/11

6:35 pm-9:55 pm

1 stop21h 20m

Bilbao

Wed 11/18

9:15 am-2:30 pm

2 stops35h 15m

$705

PhiladelphiaBilbao

PHL Philadelphia - BIO Bilbao

PHLBIO

Philadelphia

Tue 11/10

5:40 pm-5:00 pm

1 stop17h 20m

Bilbao

Wed 11/25

5:50 pm-4:05 pm

1 stop28h 15m

$739

PhiladelphiaBilbao

PHL Philadelphia - BIO Bilbao

PHLBIO

Philadelphia

Thu 11/19

5:40 pm-5:00 pm

1 stop17h 20m

Bilbao

Tue 12/8

6:45 am-4:05 pm

1 stop15h 20m

$757

Quickest round-trip

PhiladelphiaBilbao

PHL Philadelphia - BIO Bilbao

PHLBIO

Philadelphia

Wed 12/2

7:40 pm-6:50 pm

1 stop17h 10m

Bilbao

Sun 1/17

9:15 am-3:50 pm

1 stop12h 35m

$831

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Philadelphia to Bilbao

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

What is the typical price of a round-trip flight between Philadelphia and Bilbao?

Prices are currently low for flights on this route.

Typical prices usually range from $904 to $1,204.
The lowest price recently found on this route was $695.

What is the cheapest month to fly to Bilbao?

The cheapest month to fly to Bilbao from Philadelphia is in December. Flight prices, which tend to average around $0, are often lower during this time because this is during the off-season. If you’re not able to fly to Bilbao in December, then June is your next best option. Flight prices from Philadelphia to Bilbao during June average around $0.

Can stopping save me money on Philadelphia to Bilbao flights?

You could potentially save up to 41% on your flight if you consider stops on a Philadelphia to Bilbao flight.

When to book flights from Philadelphia to Bilbao

Are you open to changing your travel dates? Check out the ideal times to fly from Philadelphia to Bilbao according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Philadelphia to Bilbao (PHL to BIO) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Philadelphia to Bilbao

Best Price Found	$399
Fastest flight time	17h 20m
Direct flights	None

The best one-way flight to Bilbao from Philadelphia in the past 72 hours is $399. The best round-trip flight deal from Philadelphia to Bilbao found on momondo in the last 72 hours is $695.

The fastest flight from Philadelphia to Bilbao takes 17h 20m

There are no direct flights from Philadelphia to Bilbao. There are no popular flight routes from Philadelphia to Bilbao.

Search flight deals

Frequently asked questions about flying from Philadelphia to Bilbao

How far is Philadelphia to Bilbao by plane?
Philadelphia and Bilbao are 3615.8 mi apart from one another. By plane, this route typically takes 17h 20m.
When did momondo last update prices for flights from Philadelphia Airport to Bilbao Airport?
Prices for flights from Philadelphia Airport to Bilbao Airport refresh daily.
How many operators does momondo search for flights from Philadelphia Airport to Bilbao Airport?
As of October 2026, there are 2 operators available to choose from for flights from Philadelphia Airport to Bilbao Airport.
How old do you have to be to fly from Philadelphia Airport to Bilbao Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Philadelphia Airport to Bilbao Airport.
What documentation or ID do you need to fly to Bilbao Airport?
The travel and health documents you'll need for your trip to Bilbao Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Bilbao Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular airline from Philadelphia to Bilbao?
momondo data reveals that the most frequently booked airline on the route from Philadelphia to Bilbao is Iberia, representing 64% of all bookings. The subsequent popular airline is Lufthansa at 36%.

Best airlines flying from Philadelphia to Bilbao

Compare and see reviews for airlines that fly from Philadelphia to Bilbao with momondo

Airline	Rating	Free Cancellation	Price
Lufthansa	PriceFrom $566	Free Cancellation	Rating 6.8 8,277 reviews		Search Lufthansa flights
Iberia	PriceFrom $734	Free Cancellation	Rating 7.0 3,245 reviews		Search Iberia flights

Getxo

Laredo

Lekeitio

Why use momondo?

Why should I use momondo to find a flight deal from Philadelphia to Bilbao?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Philadelphia to Bilbao. momondo saves you time and could save you money on your trip.

Can I find flights from Philadelphia to Bilbao with flexible booking policies on momondo?

momondo does allow users to show only those flights to Bilbao from Philadelphia which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Philadelphia to Bilbao?

momondo provides multiple filters to help you find the best flight to Bilbao from Philadelphia. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Philadelphia to Bilbao right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Bilbao, momondo offers a useful price alert feature which will track prices for flights to Bilbao from Philadelphia and alert you when they change.

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Cheap flights from Philadelphia to Bilbao from $399

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Philadelphia to Bilbao departing on 11/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Lufthansa flights from Philadelphia to Bilbao

Our best Lufthansa deals on Philadelphia to Bilbao flight tickets

United Airlines flights from Philadelphia to Bilbao

Our best United Airlines deals on Philadelphia to Bilbao flight tickets

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How to get the cheapest flight ticket from Philadelphia to Bilbao

What is the typical price of a round-trip flight between Philadelphia and Bilbao?

What is the cheapest month to fly to Bilbao?

Can stopping save me money on Philadelphia to Bilbao flights?

What is the cheapest airline that flies from Philadelphia to Bilbao?

What airlines fly to Bilbao?

When to book flights from Philadelphia to Bilbao

Cheap Philadelphia to Bilbao (PHL to BIO) flight deals and tips

Best Price Found

Fastest flight time

Direct flights

Frequently asked questions about flying from Philadelphia to Bilbao

Best airlines flying from Philadelphia to Bilbao

Compare and see reviews for airlines that fly from Philadelphia to Bilbao with momondo

Traveling to a place near Bilbao?

Why use momondo?

An easier way to manage your Bilbao trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Spain

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Fly your favorite airline to Bilbao

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List of cabin classes available on flights landing in Bilbao. Availability may vary depending on flight origin and airline.

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