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Cheap flights from Philadelphia to Bilbao from $524

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 8/22. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Philadelphia to Bilbao (PHL-BIO)

Cheap round-trip flights

Lufthansa Logo
5:35 pm - 6:20 pmPHL-BIO
18h 45m1 stop
Lufthansa Logo
6:45 am - 4:00 pmBIO-PHL
15h 15m1 stop
$635Lufthansa
Find Deal
Thu, Sep 18 - Tue, Sep 23
United Airlines Logo
5:35 pm - 6:20 pmPHL-BIO
18h 45m1 stop
United Airlines Logo
6:45 am - 4:00 pmBIO-PHL
15h 15m1 stop
$645United Airlines
Find Deal
Wed, Sep 17 - Sun, Sep 21
United Airlines Logo
5:35 pm - 6:20 pmPHL-BIO
18h 45m1 stop
United Airlines Logo
12:30 pm - 12:21 amBIO-PHL
17h 51m2 stops
$650United Airlines
Find Deal
Wed, Sep 17 - Sun, Sep 21
Logo
7:30 am - 1:20 pmPHL-BIO
23h 50m2 stops
Logo
6:45 am - 9:38 pmBIO-PHL
20h 53m2 stops
$651
Find Deal
Thu, Sep 18 - Tue, Sep 23
Logo
6:30 am - 10:45 amPHL-BIO
22h 15m2 stops
Logo
6:45 am - 9:38 pmBIO-PHL
20h 53m2 stops
$663
Find Deal
Tue, Sep 16 - Tue, Sep 23
Lufthansa Logo
5:35 pm - 1:20 pmPHL-BIO
13h 45m1 stop
Lufthansa Logo
6:45 am - 4:00 pmBIO-PHL
15h 15m1 stop
$664Lufthansa
Find Deal
Tue, Sep 16 - Tue, Sep 23
Brussels Airlines Logo
5:35 pm - 4:05 pmPHL-BIO
16h 30m2 stops
Brussels Airlines Logo
4:55 pm - 6:57 pmBIO-PHL
56h 02m3 stops
$1,397Brussels Airlines
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Tue, Sep 16 - Tue, Sep 23
Aer Lingus Logo
8:30 pm - 5:30 pmPHL-BIO
15h 00m1 stop
Aer Lingus Logo
6:10 pm - 7:00 pmBIO-PHL
30h 50m1 stop
$1,448Aer Lingus
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Thu, Aug 28 - Mon, Sep 1
Brussels Airlines Logo
5:35 pm - 4:05 pmPHL-BIO
16h 30m2 stops
Brussels Airlines Logo
1:50 pm - 6:55 pmBIO-PHL
35h 05m3 stops
$1,673Brussels Airlines
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Mon, Sep 15 - Sun, Sep 21
Air Canada Logo
9:20 am - 5:50 pmPHL-BIO
26h 30m2 stops
Air Canada Logo
2:10 pm - 10:08 pmBIO-PHL
37h 58m2 stops
$1,790Air Canada
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Thu, Aug 28 - Mon, Sep 1

TAP AIR PORTUGAL flights from Philadelphia to Bilbao

Our best TAP AIR PORTUGAL deals on Philadelphia to Bilbao flight tickets
TAP AIR PORTUGAL
Aug 28
PHL10:15 amPhiladelphia
19h 15m
2 stops
BIO11:30 amBilbao
Sep 1
BIO12:25 pmBilbao
27h 15m
3 stops
PHL9:40 amPhiladelphia
$2,440
Find similar
TAP AIR PORTUGAL
Aug 28
PHL10:15 amPhiladelphia
19h 15m
2 stops
BIO11:30 amBilbao
Sep 1
BIO12:25 pmBilbao
27h 15m
3 stops
PHL9:40 amPhiladelphia
$2,670
Find similar

United Airlines flights from Philadelphia to Bilbao

Our best United Airlines deals on Philadelphia to Bilbao flight tickets
United Airlines
Sep 17
PHL5:35 pmPhiladelphia
18h 45m
1 stop
BIO6:20 pmBilbao
Sep 21
BIO6:45 amBilbao
15h 15m
1 stop
PHL4:00 pmPhiladelphia
$645
Find similar
United Airlines
Sep 17
PHL5:35 pmPhiladelphia
18h 45m
1 stop
BIO6:20 pmBilbao
Sep 21
BIO12:30 pmBilbao
17h 51m
2 stops
PHL12:21 amPhiladelphia
$650
Find similar
United Airlines
Sep 15
PHL6:27 pmPhiladelphia
34h 18m
2 stops
BIO10:45 amBilbao
Sep 21
BIO12:30 pmBilbao
17h 51m
2 stops
PHL12:21 amPhiladelphia
$721
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Philadelphia to Bilbao that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated August 18, 2025.
Use the filters below to find and compare flights from Philadelphia to Bilbao that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

PhiladelphiaBilbao

PHL - BIO

PHLBIO

Philadelphia

Thu 9/18

5:35 pm-6:20 pm

1 stop18h 45m

Bilbao

Tue 9/23

6:45 am-4:00 pm

1 stop15h 15m

$635

PhiladelphiaBilbao

PHL - BIO

PHLBIO

Philadelphia

Wed 9/17

5:35 pm-6:20 pm

1 stop18h 45m

Bilbao

Sun 9/21

6:45 am-4:00 pm

1 stop15h 15m

$645

PhiladelphiaBilbao

PHL - BIO

PHLBIO

Philadelphia

Wed 9/17

5:35 pm-6:20 pm

1 stop18h 45m

Bilbao

Sun 9/21

12:30 pm-12:21 am

2 stops17h 51m

$650

PhiladelphiaBilbao

PHL - BIO

PHLBIO

Philadelphia

Thu 9/18

7:30 am-1:20 pm

2 stops23h 50m

Bilbao

Tue 9/23

6:45 am-9:38 pm

2 stops20h 53m

$651

PhiladelphiaBilbao

PHL - BIO

PHLBIO

Philadelphia

Tue 9/16

6:30 am-10:45 am

2 stops22h 15m

Bilbao

Tue 9/23

6:45 am-9:38 pm

2 stops20h 53m

$663

PhiladelphiaBilbao

PHL - BIO

PHLBIO

Philadelphia

Tue 9/16

5:35 pm-1:20 pm

1 stop13h 45m

Bilbao

Tue 9/23

6:45 am-4:00 pm

1 stop15h 15m

$664

PhiladelphiaBilbao

PHL - BIO

PHLBIO

Philadelphia

Tue 9/16

5:35 pm-4:05 pm

2 stops16h 30m

Bilbao

Tue 9/23

4:55 pm-6:57 pm

3 stops56h 02m

$1,397

PhiladelphiaBilbao

PHL - BIO

PHLBIO

Philadelphia

Thu 8/28

8:30 pm-5:30 pm

1 stop15h 00m

Bilbao

Mon 9/1

6:10 pm-7:00 pm

1 stop30h 50m

$1,448

PhiladelphiaBilbao

PHL - BIO

PHLBIO

Philadelphia

Mon 9/15

5:35 pm-4:05 pm

2 stops16h 30m

Bilbao

Sun 9/21

1:50 pm-6:55 pm

3 stops35h 05m

$1,673

PhiladelphiaBilbao

PHL - BIO

PHLBIO

Philadelphia

Thu 8/28

9:20 am-5:50 pm

2 stops26h 30m

Bilbao

Mon 9/1

2:10 pm-10:08 pm

2 stops37h 58m

$1,790

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 19 resultsSorted by cheapest first
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See travel insights to Bilbao from

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

What is the cheapest day to depart on your flight to Bilbao?

The cheapest day to depart from Philadelphia to Bilbao is on a Wednesday. Travelers who choose to depart for Bilbao on a Wednesday will often find tickets for as low as $832. If your travel schedule is flexible, try to avoid departing on a Friday because tickets tend to average around $1,500. These prices are subject to change though, so be sure to set up a Price Alert for flights to Bilbao.

What is the cheapest time of day to depart on your flight to Bilbao?

Our most recent data shows that the best time of day to fly to Bilbao is in the evening. Flights from Philadelphia to Bilbao during this time can be as low as $763. In the morning is when there is more demand to fly to Bilbao, so prices are often more expensive at around $1,072 per ticket.

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

$524

Fastest flight time

12h 35m

Direct flights

None

Airports in Bilbao

1 airport
The best one-way flight to Bilbao from Philadelphia in the past 72 hours is $524. The best round-trip flight deal from Philadelphia to Bilbao found on momondo in the last 72 hours is $635.
The fastest flight from Philadelphia to Bilbao takes 12h 35m
There are no direct flights from Philadelphia to Bilbao. Popular non-direct route for this connection is Philadelphia Airport - Bilbao Airport.
There is 1 airport near Bilbao: Bilbao (BIO)
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  • 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 12h 35m.

  • 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?

  • 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?

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
IberiaPriceFrom $580Free CancellationRating
7.0
2,884 reviews
Search Iberia flights
LufthansaPriceFrom $587Free CancellationRating
6.8
7,330 reviews
Search Lufthansa flights
United AirlinesPriceFrom $685Free CancellationRating
7.4
8,925 reviews
Search United Airlines flights

Traveling to a place near Bilbao?

Book flights to Bilbao if you plan to visit one of these locations
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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