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.

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).

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

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from St. Louis to Bilbao as you normally would.

Most accurate provider : When it comes to deals on St. Louis-Bilbao flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on St. Louis-Bilbao flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from St. Louis-Bilbao flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on St. Louis-Bilbao flights, Cheapflights users trust FlightHub the most. FlightHub 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 St. Louis-Bilbao flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Can I find deals for flights from St. Louis to Bilbao that include hotel bookings?

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

How can I find direct flights from St. Louis to Bilbao?

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

Can I find deals for business class flights from St. Louis to Bilbao?

Yes. Cheapflights offers flight deals from St. Louis 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.

$509+ Flights from St. Louis to Bilbao

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Cheap flight deals from St. Louis to Bilbao

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Cheapest flights from St. Louis to Bilbao
Explore the most affordable flight options available from St. Louis to Bilbao. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 18, 2026.

Wed 2/253:15 pm

STL

BIO

2 stops23h 40m

United Airlines

Sun 3/16:45 am

BIO

STL

1 stop14h 10m

United Airlines

Deal found 2/15

$720

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Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars

Provider with most accurate pricing for Lambert-St Louis-Bilbao flight deals.

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Provider most trusted by Cheapflights users for Lambert-St Louis-Bilbao flights.

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Route

Depart

Return

Price

St. LouisBilbao

STL - BIO

STLBIO

Lambert-St Louis

Fri 6/19

9:23 am-8:30 am

2 stops16h 07m

$509

St. LouisBilbao

STL - BIO

STLBIO

Lambert-St Louis

Fri 6/19

5:03 pm-5:10 pm

2 stops17h 07m

$576

St. LouisBilbao

STL - BIO

STLBIO

Lambert-St Louis

Fri 6/19

3:30 pm-5:00 pm

1 stop18h 30m

$592

St. LouisBilbao

STL - BIO

STLBIO

Lambert-St Louis

Fri 6/19

3:30 pm-5:00 pm

1 stop18h 30m

$621

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/14

Most accurate provider: When it comes to deals on St. Louis-Bilbao flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on St. Louis-Bilbao flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from St. Louis-Bilbao flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on St. Louis-Bilbao flights, Cheapflights users trust FlightHub the most. FlightHub 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 St. Louis-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 St. Louis to Bilbao

Have a flexible travel schedule? Discover the best time to fly to Bilbao from St. Louis with our price prediction graph.

STL-BIO

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.

Related info for your journey

Can I find deals for flights from St. Louis to Bilbao that include hotel bookings?
Yes. In addition to deals on St. Louis to Bilbao flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from St. Louis to Bilbao?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from St. Louis to Bilbao.
Can I find deals for business class flights from St. Louis to Bilbao?
Yes. Cheapflights offers flight deals from St. Louis 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.

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$509+ Cheap flights from St. Louis (STL) 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 6/19. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from St. Louis to Bilbao with Cheapflights

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Cheap flight deals from St. Louis to Bilbao

Cheapest flights from St. Louis to BilbaoExplore the most affordable flight options available from St. Louis to Bilbao. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 18, 2026.

Explore the most affordable flight options available from St. Louis to Bilbao. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 18, 2026.

Last-minute flights from St. Louis to BilbaoDiscover last-minute flight deals from St. Louis to Bilbao. Data last updated February 18, 2026 and is based on user searches.

Discover last-minute flight deals from St. Louis to Bilbao. Data last updated February 18, 2026 and is based on user searches.

One-way flights from St. Louis to BilbaoSearch for one-way flight options from St. Louis to Bilbao. Find affordable one-way fares based on user searches. Data last updated February 18, 2026.

Search for one-way flight options from St. Louis to Bilbao. Find affordable one-way fares based on user searches. Data last updated February 18, 2026.

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Best time to book a flight from St. Louis to Bilbao

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Related info for your journey

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

Can I find deals for flights from St. Louis to Bilbao that include hotel bookings?

How can I find direct flights from St. Louis to Bilbao?

Can I find deals for business class flights from St. Louis to Bilbao?

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Explore flights to Bilbao departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on February 18, 2026.

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Cheapest flights from St. Louis to Bilbao
Explore the most affordable flight options available from St. Louis to Bilbao. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 18, 2026.

Last-minute flights from St. Louis to Bilbao
Discover last-minute flight deals from St. Louis to Bilbao. Data last updated February 18, 2026 and is based on user searches.

One-way flights from St. Louis to Bilbao
Search for one-way flight options from St. Louis to Bilbao. Find affordable one-way fares based on user searches. Data last updated February 18, 2026.