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$691+ Cheap flights from Phoenix 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 9/9. Fares are subject to change and may not be available on all flights or dates of travel.
PHX — BIO
Jul 8 — Jul 151
Tue 7/8
Tue 7/15
1 adult, Economy
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Cheap flight deals from Phoenix to Bilbao

Discover tips and strategies to find the most affordable flight options for your journey from Phoenix (PH1) 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 July 3, 2025.

Round-trip from

$773
(United Airlines)

Popular in

May

Cheapest in

September

Average price

$1,443
From Phoenix to Bilbao
Search Deals
Highest demand for flights based on searches. 16% potential increase in price ($231 potential increase over avg. RT price).
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Cheapest flight prices on average. 9% potential price decrease ($101 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Find flight deals from Phoenix to Bilbao

Cheapest flights from Phoenix to Bilbao
Explore the most affordable flight options available from Phoenix to Bilbao. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 3, 2025.

This United Airlines deal was found by Cheapflights users on 7/3. 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.
Tue 9/97:04 amPHX - BIO
2 stops26h 16mUnited Airlines
Tue 9/166:45 amBIO - PHX
2 stops19h 17mUnited Airlines
Deal found 7/3$691
This KLM deal was found by Cheapflights users on 7/2. 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.
Sat 8/163:05 pmPHX - BIO
1 stop21h 55mKLM
Sat 8/237:10 amBIO - PHX
1 stop14h 40mKLM
Deal found 7/2$1,054
This KAYAK deal was found by Cheapflights users on 7/2. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/411:43 amPHX - BIO
2 stops23h 22mAir Europa
Tue 7/229:05 pmBIO - PHX
2 stops59h 06mAir Europa
Deal found 7/2$1,356
This Mytrip deal was found by Cheapflights users on 7/2. 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.
Sat 8/1610:10 amPHX - BIO
3 stops22h 40mMultiple Airlines
Sat 8/237:30 amBIO - PHX
3 stops41h 06mMultiple Airlines
Deal found 7/2$1,367
This Ovago deal was found by Cheapflights users on 7/2. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/311:12 amPHX - BIO
1 stop14h 33mLufthansa
Thu 7/246:45 amBIO - PHX
2 stops23h 14mLufthansa
Deal found 7/2$1,940
This Delta deal was found by Cheapflights users on 7/2. 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.
Thu 7/310:54 amPHX - BIO
2 stops20h 46mDelta
Thu 7/247:10 amBIO - PHX
1 stop14h 40mDelta
Deal found 7/2$1,986
This Air France deal was found by Cheapflights users on 7/2. 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.
Fri 7/43:05 pmPHX - BIO
1 stop21h 55mAir France
Tue 7/227:10 amBIO - PHX
2 stops17h 54mAir France
Deal found 7/2$1,990

Cheapflights Fare Finder

Customize your flight search to find flights from Phoenix 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 July 3, 2025.
Use the filters below to find and compare flights from Phoenix to Bilbao that are best for you.

Fly from

Phoenix

Fly to

Bilbao

Route

Depart

Return

Price

PhoenixBilbao

PHX - BIO

PHXBIO

Phoenix Sky Harbor Intl

Tue 9/9

7:04 am-6:20 pm

2 stops26h 16m

Bilbao

Tue 9/16

6:45 am-5:02 pm

2 stops19h 17m

$691

PhoenixBilbao

PHX - BIO

PHXBIO

Phoenix Sky Harbor Intl

Sat 8/16

3:05 pm-10:00 pm

1 stop21h 55m

Bilbao

Sat 8/23

7:10 am-12:50 pm

1 stop14h 40m

$1,054

PhoenixBilbao

PHX - BIO

PHXBIO

Phoenix Sky Harbor Intl

Sat 8/16

10:10 am-5:50 pm

3 stops22h 40m

Bilbao

Sat 8/23

7:30 am-3:36 pm

3 stops41h 06m

$1,367

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/3

Best time to book a flight from Phoenix to Bilbao

Have a flexible travel schedule? Discover the best time to fly to Bilbao from Phoenix 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 to Bilbao

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

Find hourly flight availability from Phoenix 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 July 3, 2025.

One of the essential ways to save on airfare from Phoenix 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 July 3, 2025.
Get a feel of what it's like to fly with KLM and United Airlines from Phoenix to Bilbao by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.8
Good
1,367 reviews

Overall

7.8

Comfort

7.7

Food

7.2

Crew

8.4

Boarding

7.8

Entertainment

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.
KLM
7.8
Good
1,367 reviews
KLM
7.8
Good
1,367 reviews

Overall

7.8

Comfort

7.7

Food

7.2

Crew

8.4

Boarding

7.8

Entertainment

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.
United Airlines
7.4
Good
8,861 reviews
KLM
7.8
Good
1,367 reviews

Overall

7.8

Comfort

7.7

Food

7.2

Crew

8.4

Boarding

7.8

Entertainment

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

Related info for your journey

Find useful and relevant information for your journey from Phoenix 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?

    Bilbao (BIO), located 3.0 mi from the city center, is the airport you fly into when you book flights from Phoenix to Bilbao. 1 airline have flights to Bilbao from Phoenix on a regular basis. Booking flights from Phoenix to Bilbao should not be difficult; the airport handles an average of 0 inbound flights from Phoenix per day.

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

    Cheapflights users have booked flights from Phoenix to Bilbao round-trip from $773. Another airline that can offer you cheap pricing is KLM. These flights start at 31% lower than the current average price 3 months from now.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Phoenix 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 to Bilbao?

    Currently, January is the cheapest month in which you can book a flight from Phoenix to Bilbao (average of $541). Flying from Phoenix to Bilbao in June is currently the most expensive (average of $1,142). 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 Phoenix to Bilbao

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Top airline flying from Phoenix to Bilbao

Discover the top airline that operate flights from Phoenix 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 July 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$815Average$1,335FlexibilityNo cancel feeOn-timeN/A

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