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$651+ Cheap flights from Philadelphia (PHL) to Bilbao (BIO)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/27. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — BIO
Jan 18 — Jan 251
Sat 1/18
Sat 1/25
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 January 13, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$651
(United Airlines)

Popular in

June

Cheapest in

January

Average price

$580
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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High demand for flights, 10% potential price rise
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Best time to find cheap flights, 5% potential price drop
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Average for round-trip flights in January 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 January 13, 2025.

This United Airlines deal was found by Cheapflights users on 1/13. 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.
Thu 2/273:30 pmPHL - BIO
2 stops14h 50mUnited Airlines
Thu 3/66:45 amBIO - PHL
2 stops21h 51mUnited Airlines
Deal found 1/13$651
This Expedia deal was found by Cheapflights users on 1/11. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/226:35 pmPHL - BIO
2 stops36h 15mIberia
Wed 2/269:35 pmBIO - PHL
1 stop24h 30mIberia
Deal found 1/11$778
This Orbitz deal was found by Cheapflights users on 1/12. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/53:20 pmPHL - BIO
2 stops17h 25mMultiple Airlines
Mon 5/127:15 pmBIO - PHL
2 stops25h 21mMultiple Airlines
Deal found 1/12$865
This Priceline deal was found by Cheapflights users on 1/11. 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.
Thu 7/1710:16 amPHL - BIO
2 stops19h 24mTAP AIR PORTUGAL
Sun 7/278:30 pmBIO - PHL
2 stops27h 17mTAP AIR PORTUGAL
Deal found 1/11$1,176
This Air Canada deal was found by Cheapflights users on 1/11. 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.
Thu 7/249:15 amPHL - BIO
2 stops23h 30mAir Canada
Sun 8/37:15 amBIO - PHL
2 stops21h 12mAir Canada
Deal found 1/11$1,249
This Travelocity deal was found by Cheapflights users on 1/11. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/175:35 pmPHL - BIO
1 stop13h 45mLufthansa
Sun 7/276:45 amBIO - PHL
1 stop15h 15mLufthansa
Deal found 1/11$1,264
This Expedia deal was found by Cheapflights users on 1/13. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/78:30 pmPHL - BIO
1 stop15h 00mAer Lingus
Mon 6/166:10 pmBIO - PHL
1 stop30h 50mAer Lingus
Deal found 1/13$1,295

Find flights from Philadelphia to Bilbao within your budget

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 January 13, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

PhiladelphiaBilbao

PHL - BIO

PHLBIO

Philadelphia

Thu 2/27

5:45 pm-12:20 pm

1 stop12h 35m

Bilbao

Thu 3/6

6:45 am-10:36 pm

2 stops21h 51m

$651

PhiladelphiaBilbao

PHL - BIO

PHLBIO

Philadelphia

Sat 2/22

6:35 pm-12:50 pm

2 stops36h 15m

Bilbao

Wed 2/26

9:35 pm-4:05 pm

1 stop24h 30m

$778

PhiladelphiaBilbao

PHL - BIO

PHLBIO

Philadelphia

Mon 5/5

3:20 pm-2:45 pm

2 stops17h 25m

Bilbao

Mon 5/12

7:15 pm-2:36 pm

2 stops25h 21m

$865

PhiladelphiaBilbao

PHL - BIO

PHLBIO

Philadelphia

Sat 6/7

10:10 am-7:20 pm

2 stops27h 10m

Bilbao

Mon 6/16

12:25 pm-5:47 pm

2 stops35h 22m

$1,211

PhiladelphiaBilbao

PHL - BIO

PHLBIO

Philadelphia

Sat 6/7

8:30 pm-5:30 pm

1 stop15h 00m

Bilbao

Mon 6/16

6:10 pm-7:00 pm

1 stop30h 50m

$1,295

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/13

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 January.
ProviderPrice AccuracyTrust Score*
AranGrantPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice 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.

Travel insights for flights from Philadelphia to Bilbao

Get recent, data-driven insights about flights from Philadelphia to Bilbao including ideal travel times, pricing trends, and more.

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 January 13, 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 January 13, 2025.
United Airlines
7.4
Good
8,953 reviews

Overall

7.4

Entertainment

7.1

Boarding

7.7

Comfort

7.3

Food

6.7

Crew

8.1

Reviews

1 / 10

United Airlines flights seem to always use a bus to/from the boarding gate to the plane. Can they not get their own gate? This time there was no lift when leaving the plane and people in wheelchairs somehow had to climb down the steps to the ground to get to the bus. I udon’t know how some managed that!

United Airlines
7.4
Good
8,953 reviews
United Airlines
7.4
Good
8,953 reviews

Overall

7.4

Entertainment

7.1

Boarding

7.7

Comfort

7.3

Food

6.7

Crew

8.1

Reviews

1 / 10

United Airlines flights seem to always use a bus to/from the boarding gate to the plane. Can they not get their own gate? This time there was no lift when leaving the plane and people in wheelchairs somehow had to climb down the steps to the ground to get to the bus. I udon’t know how some managed that!

Aer Lingus
7.1
Good
1,075 reviews
United Airlines
7.4
Good
8,953 reviews

Overall

7.4

Entertainment

7.1

Boarding

7.7

Comfort

7.3

Food

6.7

Crew

8.1

Reviews

1 / 10

United Airlines flights seem to always use a bus to/from the boarding gate to the plane. Can they not get their own gate? This time there was no lift when leaving the plane and people in wheelchairs somehow had to climb down the steps to the ground to get to the bus. I udon’t know how some managed that!

TAP AIR PORTUGAL
7.1
Good
1,861 reviews
United Airlines
7.4
Good
8,953 reviews

Overall

7.4

Entertainment

7.1

Boarding

7.7

Comfort

7.3

Food

6.7

Crew

8.1

Reviews

1 / 10

United Airlines flights seem to always use a bus to/from the boarding gate to the plane. Can they not get their own gate? This time there was no lift when leaving the plane and people in wheelchairs somehow had to climb down the steps to the ground to get to the bus. I udon’t know how some managed that!

Iberia
7.0
Good
2,638 reviews
United Airlines
7.4
Good
8,953 reviews

Overall

7.4

Entertainment

7.1

Boarding

7.7

Comfort

7.3

Food

6.7

Crew

8.1

Reviews

1 / 10

United Airlines flights seem to always use a bus to/from the boarding gate to the plane. Can they not get their own gate? This time there was no lift when leaving the plane and people in wheelchairs somehow had to climb down the steps to the ground to get to the bus. I udon’t know how some managed that!

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 $651, United Airlines will fly you from Philadelphia to Bilbao and back. In addition to United Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Iberia and TAP AIR PORTUGAL - these airlines can fly you to your destination from $778 and $1,211, respectively. United Airlines is priced at 32% lower than the current average price of a flight leaving 3 months from now.

  • 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 January 13, 2025.
AirlineCheapestAverageFlexibilityOn-time
IberiaCheapest$664Average$1,054FlexibilityNo cancel feeOn-time77%
LufthansaCheapest$832Average$928FlexibilityNo cancel feeOn-time76%
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