HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Bilbao

$531+ Cheap flights from St. Louis (STL) 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 11/19. Fares are subject to change and may not be available on all flights or dates of travel.
STL — BIO
nov. 6 — nov. 131
jue. 11/6
jue. 11/13
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from St. Louis to Bilbao with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from St. Louis to Bilbao

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) 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 octubre 7, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$531
(United Airlines)
Provider with most accurate pricing for Lambert-St Louis-Bilbao flight deals.
Search Deals
Provider most trusted by Cheapflights users for Lambert-St Louis-Bilbao flights.
Search Deals
From Lambert-St Louis to Bilbao
Search Deals

Find flight deals from St. Louis to Bilbao

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 octubre 7, 2025.

This United Airlines deal was found by Cheapflights users on 10/5. 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.
mié. 11/1911:49 amSTL - BIO
2 stops16h 01mUnited Airlines
mié. 11/267:25 amBIO - STL
2 stops39h 04mUnited Airlines
Deal found 10/5$531
This Air Canada deal was found by Cheapflights users on 10/4. 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. 11/194:05 pmSTL - BIO
2 stops24h 15mMultiple Airlines
mié. 11/267:25 amBIO - STL
3 stops22h 20mMultiple Airlines
Deal found 10/4$617
This United Airlines deal was found by Cheapflights users on 10/6. 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.
jue. 11/2011:49 amSTL - BIO
2 stops16h 01mMultiple Airlines
jue. 11/276:45 amBIO - STL
2 stops19h 07mMultiple Airlines
Deal found 10/6$748
This United Airlines deal was found by Cheapflights users on 10/5. 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.
dom. 10/512:25 pmSTL - BIO
2 stops28h 00mUnited Airlines
mié. 10/156:45 amBIO - STL
2 stops22h 50mUnited Airlines
Deal found 10/5$758
This FlightHub deal was found by Cheapflights users on 10/5. 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.
dom. 10/53:30 pmSTL - BIO
1 stop19h 55mLufthansa
mié. 10/157:05 pmBIO - STL
2 stops27h 39mLufthansa
Deal found 10/5$799
This Ovago deal was found by Cheapflights users on 10/6. 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.
jue. 11/2011:49 amSTL - BIO
2 stops21h 51mLufthansa
jue. 11/2712:50 pmBIO - STL
1 stop32h 05mLufthansa
Deal found 10/6$909

Cheapflights Fare Finder

 
Customize your flight search to find flights from St. Louis 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 octubre 7, 2025.
Use the filters below to find and compare flights from St. Louis to Bilbao that are best for you.

Fly from

St. Louis

Fly to

Bilbao

Route

Depart

Return

Price

St. LouisBilbao

STL - BIO

STLBIO

Lambert-St Louis

mié. 11/19

11:49 am-10:50 am

2 stops16h 01m

Bilbao

mié. 11/26

7:25 am-3:29 pm

2 stops39h 04m

$531

St. LouisBilbao

STL - BIO

STLBIO

Lambert-St Louis

mié. 11/19

4:05 pm-11:20 pm

2 stops24h 15m

Bilbao

mié. 11/26

7:25 am-10:45 pm

3 stops22h 20m

$617

St. LouisBilbao

STL - BIO

STLBIO

Lambert-St Louis

jue. 11/20

11:49 am-10:50 am

2 stops16h 01m

Bilbao

jue. 11/27

6:45 am-6:52 pm

2 stops19h 07m

$748

St. LouisBilbao

STL - BIO

STLBIO

Lambert-St Louis

jue. 11/20

11:49 am-4:40 pm

2 stops21h 51m

Bilbao

jue. 11/27

12:50 pm-1:55 pm

1 stop32h 05m

$909

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/5

Compare providers for flights from St. Louis 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 St. Louis to Bilbao in October.
ProviderPrice AccuracyTrust Score*
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice 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 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.
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 St. Louis to Bilbao

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

Find hourly flight availability from St. Louis 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 octubre 7, 2025.

Unlike in the evening, when flights are generally more expensive, you can save up to 27% on flights from St. Louis to Bilbao by exploring options for tickets in the morning.

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.

  • How long is the flight from St. Louis to Bilbao?

    A quick flight from St. Louis to Bilbao can take about 16h 01m. United Airlines provides one of the quickest options available for as low as $531. There are 4348 mi between St. Louis and Bilbao.

  • 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.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for St. Louis to Bilbao

See prices for flight routes from nearby airports that may be better suited for you.
St. Louis to San Sebastian flights

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.