$283+ 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 4/15. Fares are subject to change and may not be available on all flights or dates of travel.
STL — BIO
Feb 5 — Feb 121
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 January 6, 2026.
Most accurate provider | eDreams 3 stars |
|---|---|
Most trusted provider | eDreams 3 stars |
Round-trip from | $500 (United Airlines) |
One-way from | $283 (Finnair) |
Find 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 January 6, 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 January 6, 2026.
This Iberia deal was found by Cheapflights users on 1/5. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/319:33 amSTL - BIO
2 stops20h 17mIberia
Tue 2/311:25 amBIO - STL
2 stops42h 19mIberia
Deal found 1/5![Iberia logo]()
$1,168
This United Airlines deal was found by Cheapflights users on 1/4. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/314:05 pmSTL - BIO
2 stops36h 55mUnited Airlines
Tue 2/311:35 amBIO - STL
2 stops58h 54mUnited Airlines
Deal found 1/4![United Airlines logo]()
$1,194
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 January 6, 2026.
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
Sat 1/31
9:33 am-12:50 pm
2 stops20h 17m
Bilbao
Tue 2/3
11:25 am-10:44 pm
2 stops42h 19m
$1,168
St. LouisBilbao
STL - BIO
STLBIO
Lambert-St Louis
Sat 1/31
4:05 pm-12:00 pm
2 stops36h 55m
Bilbao
Tue 2/3
11:35 am-3:29 pm
2 stops58h 54m
$1,194
St. LouisBilbao
STL - BIO
STLBIO
Lambert-St Louis
Wed 4/15
12:27 pm-11:15 pm
2 stops27h 48m
$283
St. LouisBilbao
STL - BIO
STLBIO
Lambert-St Louis
Wed 4/15
3:30 pm-1:15 pm
1 stop14h 45m
$396
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 January.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*1 star |
- Most accurate provider: When it comes to deals on St. Louis-Bilbao flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on St. Louis-Bilbao flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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.