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$512+ Cheap flights from Sky Harbor Intl (PHX) 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 10/14. Fares are subject to change and may not be available on all flights or dates of travel.
PHX — BIO
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheap flight deals from Sky Harbor Intl to Bilbao

Discover tips and strategies to find the most affordable flight options for your journey from Sky Harbor Intl (PHX) 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 September 11, 2025.

Round-trip from

$512
(Mytrip)

Popular in

May

Cheapest in

September

Average price

$710
From Phoenix Sky Harbor Intl to Bilbao
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Highest demand for flights based on searches. 16% potential increase in price ($218 potential increase over avg. RT price).
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Cheapest flight prices on average. 9% potential price decrease ($99 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Sky Harbor Intl to Bilbao

Cheapest flights from Sky Harbor Intl to Bilbao
Explore the most affordable flight options available from Sky Harbor Intl to Bilbao. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

This Mytrip deal was found by Cheapflights users on 9/10. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/147:30 amPHX - BIO
2 stops25h 50mAir Canada
Tue 10/216:45 amBIO - PHX
2 stops21h 56mAir Canada
Deal found 9/10$512
This Mytrip deal was found by Cheapflights users on 9/10. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/58:00 amPHX - BIO
2 stops24h 10mMultiple Airlines
Sat 11/1512:50 pmBIO - PHX
2 stops30h 54mMultiple Airlines
Deal found 9/10$570
This Delta deal was found by Cheapflights users on 9/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/143:05 pmPHX - BIO
1 stop16h 35mDelta
Tue 10/216:50 amBIO - PHX
2 stops20h 18mDelta
Deal found 9/10$580
This United Airlines deal was found by Cheapflights users on 9/9. 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.
Fri 10/247:10 amPHX - BIO
2 stops26h 15mUnited Airlines
Fri 10/316:45 amBIO - PHX
2 stops20h 58mUnited Airlines
Deal found 9/9$610
This SWISS deal was found by Cheapflights users on 9/10. 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.
Wed 11/54:44 pmPHX - BIO
2 stops20h 26mSWISS
Sat 11/1511:35 amBIO - PHX
3 stops42h 23mSWISS
Deal found 9/10$633
This Delta deal was found by Cheapflights users on 9/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/511:05 amPHX - BIO
2 stops22h 15mDelta
Sat 11/157:25 amBIO - PHX
1 stop14h 10mDelta
Deal found 9/10$651
This Air Canada deal was found by Cheapflights users on 9/11. 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.
Sun 10/267:00 amPHX - BIO
2 stops27h 05mMultiple Airlines
Sun 11/27:25 amBIO - PHX
2 stops42h 12mMultiple Airlines
Deal found 9/11$666
This United Airlines deal was found by Cheapflights users on 9/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/2612:25 pmPHX - BIO
2 stops26h 40mUnited Airlines
Sun 11/25:45 amBIO - PHX
2 stops20h 59mUnited Airlines
Deal found 9/11$671
This Air France deal was found by Cheapflights users on 9/10. 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 France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/143:05 pmPHX - BIO
1 stop21h 55mAir France
Tue 10/217:10 amBIO - PHX
1 stop14h 40mAir France
Deal found 9/10$677
This United Airlines deal was found by Cheapflights users on 9/10. 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.
Sat 10/256:45 pmPHX - BIO
2 stops44h 20mUnited Airlines
Sat 11/16:45 amBIO - PHX
2 stops44h 08mUnited Airlines
Deal found 9/10$696
This KLM deal was found by Cheapflights users on 9/11. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/2610:33 amPHX - BIO
2 stops17h 12mKLM
Sun 11/26:05 pmBIO - PHX
1 stop27h 30mKLM
Deal found 9/11$849

Cheapflights Fare Finder

 
Customize your flight search to find flights from Sky Harbor Intl 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 September 11, 2025.
Use the filters below to find and compare flights from Phoenix Sky Harbor Intl Airport to Bilbao that are best for you.

Fly from

Sky Harbor Intl

Fly to

Bilbao

Route

Depart

Return

Price

PhoenixBilbao

PHX - BIO

PHXBIO

Phoenix Sky Harbor Intl

Tue 10/14

7:30 am-6:20 pm

2 stops25h 50m

Bilbao

Tue 10/21

6:45 am-7:41 pm

2 stops21h 56m

$512

PhoenixBilbao

PHX - BIO

PHXBIO

Phoenix Sky Harbor Intl

Wed 11/5

8:00 am-4:10 pm

2 stops24h 10m

Bilbao

Sat 11/15

12:50 pm-11:44 am

2 stops30h 54m

$570

PhoenixBilbao

PHX - BIO

PHXBIO

Phoenix Sky Harbor Intl

Tue 10/14

3:05 pm-4:40 pm

1 stop16h 35m

Bilbao

Tue 10/21

6:50 am-6:08 pm

2 stops20h 18m

$580

PhoenixBilbao

PHX - BIO

PHXBIO

Phoenix Sky Harbor Intl

Fri 10/24

7:10 am-6:25 pm

2 stops26h 15m

Bilbao

Fri 10/31

6:45 am-7:43 pm

2 stops20h 58m

$610

PhoenixBilbao

PHX - BIO

PHXBIO

Phoenix Sky Harbor Intl

Wed 11/5

4:44 pm-9:10 pm

2 stops20h 26m

Bilbao

Sat 11/15

11:35 am-9:58 pm

3 stops42h 23m

$633

PhoenixBilbao

PHX - BIO

PHXBIO

Phoenix Sky Harbor Intl

Sun 10/26

7:00 am-6:05 pm

2 stops27h 05m

Bilbao

Sun 11/2

7:25 am-5:37 pm

2 stops42h 12m

$666

PhoenixBilbao

PHX - BIO

PHXBIO

Phoenix Sky Harbor Intl

Sun 10/26

12:25 pm-11:05 pm

2 stops26h 40m

Bilbao

Sun 11/2

5:45 am-6:44 pm

2 stops20h 59m

$671

PhoenixBilbao

PHX - BIO

PHXBIO

Phoenix Sky Harbor Intl

Tue 10/14

3:05 pm-10:00 pm

1 stop21h 55m

Bilbao

Tue 10/21

7:10 am-12:50 pm

1 stop14h 40m

$677

PhoenixBilbao

PHX - BIO

PHXBIO

Phoenix Sky Harbor Intl

Sat 10/25

6:45 pm-11:05 pm

2 stops44h 20m

Bilbao

Sat 11/1

6:45 am-6:53 pm

2 stops44h 08m

$696

PhoenixBilbao

PHX - BIO

PHXBIO

Phoenix Sky Harbor Intl

Sun 10/26

10:33 am-11:45 am

2 stops17h 12m

Bilbao

Sun 11/2

6:05 pm-1:35 pm

1 stop27h 30m

$849

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

Showing 1-10 of 11 results
1
2

Best time to book a flight from Sky Harbor Intl to Bilbao

Have a flexible travel schedule? Discover the best time to fly to Bilbao from Sky Harbor Intl 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 Phoenix Sky Harbor Intl Airport to Bilbao

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

Find hourly flight availability from Sky Harbor Intl 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 September 11, 2025.

One of the essential ways to save on airfare from Phoenix Sky Harbor Intl Airport to Bilbao is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight at noon could potentially save you up to 24% on airfare.

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 September 11, 2025.
See what other customers who have flown with Delta and United Airlines from Phoenix Sky Harbor Intl Airport to Bilbao have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,960 reviews

Boarding

8.2

Crew

8.5

Entertainment

7.9

Overall

8.0

Comfort

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,960 reviews
Delta
8.0
Very good
7,960 reviews

Boarding

8.2

Crew

8.5

Entertainment

7.9

Overall

8.0

Comfort

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,937 reviews
Delta
8.0
Very good
7,960 reviews

Boarding

8.2

Crew

8.5

Entertainment

7.9

Overall

8.0

Comfort

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

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

  • What airport do you fly into for flights to Bilbao from Phoenix Sky Harbor Intl?

    Located just 3.0 mi from the city center, Bilbao is the airport most travelers will use when flying to Bilbao from Phoenix Sky Harbor Intl. Booking flights from Phoenix Sky Harbor Intl to Bilbao (BIO) should be relatively easy as there are 0 daily inbound flights from Phoenix Sky Harbor Intl from 2 different airlines.

  • How long is the flight from Phoenix Sky Harbor Intl Airport to Bilbao?

    Airlines like Air Canada, Delta, and United Airlines fly from Phoenix Sky Harbor Intl Airport to Bilbao in about 16h 35m. The time it takes to get you to your destination can typically vary by up to 9h 40m. The distance between Phoenix Sky Harbor Intl Airport and Bilbao is about 5501 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines flying from Phoenix Sky Harbor Intl Airport to Bilbao round-trip?

    Delta, at $342, was found to be the cheapest airline from Phoenix Sky Harbor Intl Airport to Bilbao. An alternate airline flying to your destination would be United Airlines. Delta is 70% cheaper than the average price of flights available within the next 90 days to this destination.

  • Can I find deals for flights from Sky Harbor Intl to Bilbao that include hotel bookings?

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

  • How can I find direct flights from Sky Harbor Intl to Bilbao?

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

  • Can I find deals for business class flights from Sky Harbor Intl to Bilbao?

    Yes. Cheapflights offers flight deals from Sky Harbor Intl 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 Phoenix Sky Harbor Intl Airport to Bilbao?

    Currently, January is the cheapest month in which you can book a flight from Phoenix Sky Harbor Intl Airport to Bilbao (average of $541). Flying from Phoenix Sky Harbor Intl Airport to Bilbao in June is currently the most expensive (average of $1,136). 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

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Alternative routes for Sky Harbor Intl to Bilbao

See prices for flight routes from nearby airports that may be better suited for you.
Sky Harbor Intl to San Sebastian flights

Top 2 airlines flying from Sky Harbor Intl to Bilbao

Discover the top 2 airlines that operate flights from Sky Harbor Intl 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 September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$342Average$1,335FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$683Average$1,020FlexibilityNo cancel feeOn-time69%

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