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$472+ Cheap flights from Philadelphia (PHL) to Bilbao (BIO)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 6/2. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — BIO
abr. 22 — abr. 291
mar. 4/22
mar. 4/29
1 adult, Economy
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Cheap flight deals from Philadelphia to Bilbao

Discover tips and strategies to find the most affordable flight options for your journey from Philadelphia (PHL) to Bilbao (BIO). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated abril 17, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$1,033
(Kiwi.com)

One-way from

$472
(Mytrip)

Popular in

November

Cheapest in

January

Average price

$936
Provider with most accurate pricing for Philadelphia-Bilbao flight deals.
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Provider most trusted by Cheapflights users for Philadelphia-Bilbao flights.
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From Philadelphia to Bilbao
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One-way flight from Philadelphia to Bilbao
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Highest demand for flights based on searches. 8% potential increase in price ($84 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($31 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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Find flight deals from Philadelphia to Bilbao

Cheapest flights from Philadelphia to Bilbao
Explore the most affordable flight options available from Philadelphia to Bilbao. Find the lowest fares from popular airlines and budget airlines, with prices last updated on abril 17, 2025.

This Priceline deal was found by Cheapflights users on 4/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 11/118:00 pmPHL - BIO
1 stop10h 50mIberia
jue. 11/207:00 amBIO - PHL
2 stops14h 35mIberia
Deal found 4/17$636
This FlightHub deal was found by Cheapflights users on 4/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 11/115:35 pmPHL - BIO
1 stop12h 20mMultiple Airlines
vie. 11/216:45 amBIO - PHL
2 stops15h 06mMultiple Airlines
Deal found 4/17$638
This United Airlines deal was found by Cheapflights users on 4/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 11/113:30 pmPHL - BIO
2 stops19h 05mUnited Airlines
jue. 11/206:45 amBIO - PHL
2 stops22h 11mUnited Airlines
Deal found 4/17$639
This Air Canada deal was found by Cheapflights users on 4/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 11/123:30 pmPHL - BIO
2 stops18h 40mAir Canada
mar. 11/186:45 amBIO - PHL
2 stops33h 06mAir Canada
Deal found 4/17$640
This FlightHub deal was found by Cheapflights users on 4/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 11/115:35 pmPHL - BIO
1 stop12h 20mLufthansa
jue. 11/206:45 amBIO - PHL
1 stop15h 15mLufthansa
Deal found 4/17$645
This KLM deal was found by Cheapflights users on 4/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 11/121:00 pmPHL - BIO
2 stops16h 20mKLM
mié. 11/1911:55 amBIO - PHL
2 stops17h 08mKLM
Deal found 4/17$658
This FlightHub deal was found by Cheapflights users on 4/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 11/115:30 pmPHL - BIO
1 stop17h 40mAer Lingus
mié. 11/195:50 pmBIO - PHL
1 stop28h 10mAer Lingus
Deal found 4/17$817
This British Airways deal was found by Cheapflights users on 4/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 11/88:00 pmPHL - BIO
1 stop14h 55mBritish Airways
mié. 11/191:35 pmBIO - PHL
1 stop32h 00mBritish Airways
Deal found 4/17$1,286
This StudentUniverse deal was found by Cheapflights users on 4/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure StudentUniverse is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 5/198:25 pmPHL - BIO
1 stop20h 50mFinnair
jue. 5/226:45 amBIO - PHL
1 stop15h 05mFinnair
Deal found 4/17$1,471
This SWISS deal was found by Cheapflights users on 4/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 6/18:31 amPHL - BIO
2 stops27h 49mSWISS
mar. 6/39:00 pmBIO - PHL
2 stops30h 33mSWISS
Deal found 4/17$1,849

Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated abril 17, 2025.
Use the filters below to find and compare flights from Philadelphia to Bilbao that are best for you.

Fly from

Philadelphia

Fly to

Bilbao

Route

Depart

Return

Price

PhiladelphiaBilbao

PHL - BIO

PHLBIO

Philadelphia

dom. 6/1

5:35 pm-1:25 pm

1 stop13h 50m

Bilbao

dom. 6/8

7:35 am-7:48 am

2 stops30h 13m

$1,033

PhiladelphiaBilbao

PHL - BIO

PHLBIO

Philadelphia

dom. 6/1

8:25 pm-9:55 pm

1 stop19h 30m

Bilbao

dom. 6/8

9:15 am-3:45 pm

1 stop12h 30m

$1,188

PhiladelphiaBilbao

PHL - BIO

PHLBIO

Philadelphia

vie. 6/20

5:35 pm-6:25 pm

1 stop18h 50m

Bilbao

jue. 6/26

6:45 am-4:00 pm

1 stop15h 15m

$1,198

PhiladelphiaBilbao

PHL - BIO

PHLBIO

Philadelphia

lun. 5/19

8:25 pm-11:15 pm

1 stop20h 50m

Bilbao

jue. 5/22

6:45 am-3:50 pm

1 stop15h 05m

$1,471

PhiladelphiaBilbao

PHL - BIO

PHLBIO

Philadelphia

mar. 4/22

8:30 pm-5:30 pm

1 stop15h 00m

Bilbao

dom. 4/27

4:00 pm-4:25 pm

2 stops30h 25m

$1,653

PhiladelphiaBilbao

PHL - BIO

PHLBIO

Philadelphia

dom. 6/1

5:35 pm-6:25 pm

1 stop18h 50m

Bilbao

mar. 6/3

6:45 am-4:00 pm

1 stop15h 15m

$1,846

PhiladelphiaBilbao

PHL - BIO

PHLBIO

Philadelphia

dom. 6/1

8:31 am-6:20 pm

2 stops27h 49m

Bilbao

mar. 6/3

9:00 pm-9:33 pm

2 stops30h 33m

$1,849

PhiladelphiaBilbao

PHL - BIO

PHLBIO

Philadelphia

lun. 6/2

12:41 pm-10:40 pm

2 stops27h 59m

$472

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/17

Compare providers for flights from Philadelphia to Bilbao

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Philadelphia to Bilbao in April.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*2 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Philadelphia-Bilbao flights, users find the pricing of AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on Philadelphia-Bilbao flight deals on Cheapflights vs. AranGrant >95% of the time. Price accuracy is based on data collected from Philadelphia-Bilbao flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Philadelphia-Bilbao flights, Cheapflights users trust AranGrant the most. AranGrant has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Philadelphia-Bilbao flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Philadelphia to Bilbao

Have a flexible travel schedule? Discover the best time to fly to Bilbao from Philadelphia with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Philadelphia to Bilbao

What is the cheapest month to book a flight from Philadelphia to Bilbao?

Currently, January is the cheapest month in which you can book a flight from Philadelphia to Bilbao (average of $541). Flying from Philadelphia to Bilbao in June is currently the most expensive (average of $1,178). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from PHL to BIO?

Find hourly flight availability from Philadelphia to Bilbao. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated abril 17, 2025.

Unlike in the morning, when flights are generally more expensive, you can save up to 29% on flights from Philadelphia to Bilbao by exploring options for tickets in the afternoon.

Rainfall in Bilbao by month

Plan your trip to Bilbao by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Bilbao ranges from 2.4 - 5.6 inches per month. November is typically the wettest month, when rainfall can reach 5.6 in. July is typically the driest time to visit Bilbao when rainfall is around 2.4 in.

Temperature in Bilbao by month

Plan your trip to Bilbao by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Bilbao, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 68.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 48.2 F).

Reviews of airlines servicing Bilbao

Get insights into the airlines that provide service to Bilbao. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Bilbao. Reviews last updated abril 17, 2025.
Finnair
7.6
Good
1,269 reviews

Crew

8.1

Boarding

7.6

Overall

7.6

Entertainment

6.9

Food

6.7

Comfort

7.4

Reviews

1 / 20
4.0
Okay

Julia,Feb 2024

JFK - HEL

The bathroom was broken, AC wasn’t working, tv wasn’t working for half the flight
Finnair
7.6
Good
1,269 reviews
Finnair
7.6
Good
1,269 reviews

Crew

8.1

Boarding

7.6

Overall

7.6

Entertainment

6.9

Food

6.7

Comfort

7.4

Reviews

1 / 20
4.0
Okay

Julia,Feb 2024

JFK - HEL

The bathroom was broken, AC wasn’t working, tv wasn’t working for half the flight
SWISS
7.5
Good
1,580 reviews
Finnair
7.6
Good
1,269 reviews

Crew

8.1

Boarding

7.6

Overall

7.6

Entertainment

6.9

Food

6.7

Comfort

7.4

Reviews

1 / 20
4.0
Okay

Julia,Feb 2024

JFK - HEL

The bathroom was broken, AC wasn’t working, tv wasn’t working for half the flight
United Airlines
7.4
Good
8,667 reviews
Finnair
7.6
Good
1,269 reviews

Crew

8.1

Boarding

7.6

Overall

7.6

Entertainment

6.9

Food

6.7

Comfort

7.4

Reviews

1 / 20
4.0
Okay

Julia,Feb 2024

JFK - HEL

The bathroom was broken, AC wasn’t working, tv wasn’t working for half the flight
Aer Lingus
7.0
Good
1,063 reviews
Finnair
7.6
Good
1,269 reviews

Crew

8.1

Boarding

7.6

Overall

7.6

Entertainment

6.9

Food

6.7

Comfort

7.4

Reviews

1 / 20
4.0
Okay

Julia,Feb 2024

JFK - HEL

The bathroom was broken, AC wasn’t working, tv wasn’t working for half the flight
Iberia
7.0
Good
2,676 reviews
Finnair
7.6
Good
1,269 reviews

Crew

8.1

Boarding

7.6

Overall

7.6

Entertainment

6.9

Food

6.7

Comfort

7.4

Reviews

1 / 20
4.0
Okay

Julia,Feb 2024

JFK - HEL

The bathroom was broken, AC wasn’t working, tv wasn’t working for half the flight

Related info for your journey

Find useful and relevant information for your journey from Philadelphia to Bilbao. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines flying from Philadelphia to Bilbao round-trip?

    Currently priced at $1,188, Iberia will fly you from Philadelphia to Bilbao and back. In addition to Iberia, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Lufthansa and Finnair - these airlines can fly you to your destination from $1,198 and $1,471, respectively.

  • Can I find deals for flights from Philadelphia to Bilbao that include hotel bookings?

    Yes. In addition to deals on Philadelphia to Bilbao flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Philadelphia to Bilbao?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Philadelphia to Bilbao.

  • Can I find deals for business class flights from Philadelphia to Bilbao?

    Yes. Cheapflights offers flight deals from Philadelphia to Bilbao by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Philadelphia to Bilbao?

    Currently, January is the cheapest month in which you can book a flight from Philadelphia to Bilbao (average of $541). Flying from Philadelphia to Bilbao in June is currently the most expensive (average of $1,178). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Top 2 airlines flying from Philadelphia to Bilbao

Discover the top 2 airlines that operate flights from Philadelphia to Bilbao. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated abril 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
IberiaCheapest$496Average$1,009FlexibilityNo cancel feeOn-time77%
LufthansaCheapest$587Average$953FlexibilityNo cancel feeOn-time76%

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