$240+ Cheap flights from Seattle (SEA) 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 2/7. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — BIO
Sep 10 — Sep 171
Round-trip
1 adult, Economy
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Find cheap flights from Seattle 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 Seattle to Bilbao
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Best
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One-way
Cheapest flights from Seattle to BilbaoExplore the most affordable flight options available from Seattle to Bilbao. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 11, 2026.
Explore the most affordable flight options available from Seattle to Bilbao. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 11, 2026.
This Cheapflightsfares deal was found by Cheapflights users on 8/10. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/226:50 pm -
1 stop14h 05m
Tue 10/66:50 am -
2 stops16h 32m
Deal found 8/10![Lufthansa logo]()
$773
This oojo deal was found by Cheapflights users on 8/10. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/276:50 pm -
1 stop14h 05m
Thu 10/86:50 am -
2 stops20h 42m
Deal found 8/10![Lufthansa logo]()
$777
This Gotogate deal was found by Cheapflights users on 8/7. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/206:50 pm -
1 stop14h 05m
Mon 10/56:40 pm -
1 stop31h 19m
Deal found 8/7![Lufthansa logo]()
$778
This Cheapflightsfares deal was found by Cheapflights users on 8/11. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/122:10 pm -
1 stop23h 15m
Thu 10/226:50 am -
2 stops24h 52m
Deal found 8/11![Lufthansa logo]()
$784
This Air France deal was found by Cheapflights users on 8/11. 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 France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/126:40 pm -
1 stop18h 20m
Thu 10/226:45 am -
1 stop14h 07m
Deal found 8/11![Multiple Airlines logo]()
$786
This Delta deal was found by Cheapflights users on 8/7. 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.
Sun 9/2011:59 pm -
2 stops24h 51m
Mon 10/512:00 pm -
1 stop32h 52m
Deal found 8/7![Delta logo]()
$787
This United Airlines deal was found by Cheapflights users on 8/10. 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.
Tue 9/225:00 am -
2 stops20h 45m
Tue 10/66:50 am -
2 stops20h 42m
Deal found 8/10![United Airlines logo]()
$789
This Delta deal was found by Cheapflights users on 8/9. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/2211:45 am -
2 stops20h 45m
Tue 10/66:45 am -
2 stops18h 52m
Deal found 8/9![Delta logo]()
$801
This Mytrip deal was found by Cheapflights users on 8/7. 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.
Sun 9/203:55 pm -
2 stops32h 55m
Mon 10/57:25 pm -
2 stops27h 20m
Deal found 8/7![Multiple Airlines logo]()
$802
Best flights from Seattle to BilbaoDiscover carefully curated flight deals from Seattle to Bilbao that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 11, 2026.
Discover carefully curated flight deals from Seattle to Bilbao that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 11, 2026.
This Cheapflightsfares deal was found by Cheapflights users on 8/11. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/122:10 pm -
1 stop23h 15m
Thu 10/226:50 am -
2 stops24h 52m
Deal found 8/11![Lufthansa logo]()
$784
This Delta deal was found by Cheapflights users on 8/7. 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.
Sun 9/2011:59 pm -
2 stops24h 51m
Mon 10/512:00 pm -
1 stop32h 52m
Deal found 8/7![Delta logo]()
$787
This United Airlines deal was found by Cheapflights users on 8/10. 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.
Tue 9/225:00 am -
2 stops20h 45m
Tue 10/66:50 am -
2 stops20h 42m
Deal found 8/10![United Airlines logo]()
$789
This Air Canada deal was found by Cheapflights users on 8/11. 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.
Thu 12/248:15 am -
2 stops24h 30m
Thu 12/316:45 am -
2 stops23h 14m
Deal found 8/11![Air Canada logo]()
$847
This Delta deal was found by Cheapflights users on 8/9. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/2211:45 am -
2 stops20h 45m
Tue 10/66:45 am -
2 stops18h 52m
Deal found 8/9![Delta logo]()
$801
This United Airlines deal was found by Cheapflights users on 8/10. 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.
Thu 9/246:50 pm -
1 stop14h 05m
Thu 10/16:50 am -
1 stop14h 30m
Deal found 8/10![United Airlines logo]()
$838
This United Airlines deal was found by Cheapflights users on 8/8. 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 10/166:50 pm -
1 stop14h 05m
Tue 10/2011:10 am -
2 stops36h 12m
Deal found 8/8![United Airlines logo]()
$858
Last-minute flights from Seattle to BilbaoDiscover last-minute flight deals from Seattle to Bilbao. Data last updated August 11, 2026 and is based on user searches.
Discover last-minute flight deals from Seattle to Bilbao. Data last updated August 11, 2026 and is based on user searches.
This Gotogate deal was found by Cheapflights users on 8/7. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/206:50 pm -
1 stop14h 05m
Mon 10/56:40 pm -
1 stop31h 19m
Deal found 8/7![Lufthansa logo]()
$778
This Delta deal was found by Cheapflights users on 8/7. 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.
Sun 9/2011:59 pm -
2 stops24h 51m
Mon 10/512:00 pm -
1 stop32h 52m
Deal found 8/7![Delta logo]()
$787
This Mytrip deal was found by Cheapflights users on 8/7. 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.
Sun 9/203:55 pm -
2 stops32h 55m
Mon 10/57:25 pm -
2 stops27h 20m
Deal found 8/7![Multiple Airlines logo]()
$802
This Gotogate deal was found by Cheapflights users on 8/6. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/206:50 pm -
1 stop19h 35m
Sun 9/276:50 am -
2 stops16h 32m
Deal found 8/6![Multiple Airlines logo]()
$819
This Gotogate deal was found by Cheapflights users on 8/6. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/206:50 pm -
1 stop19h 35m
Sun 9/276:50 am -
1 stop14h 05m
Deal found 8/6![Lufthansa logo]()
$820
This Cheapflightsfares deal was found by Cheapflights users on 8/10. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/226:50 pm -
1 stop14h 05m
Tue 10/66:50 am -
2 stops16h 32m
Deal found 8/10![Lufthansa logo]()
$773
This United Airlines deal was found by Cheapflights users on 8/10. 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.
Tue 9/225:00 am -
2 stops20h 45m
Tue 10/66:50 am -
2 stops20h 42m
Deal found 8/10![United Airlines logo]()
$789
This Delta deal was found by Cheapflights users on 8/9. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/2211:45 am -
2 stops20h 45m
Tue 10/66:45 am -
2 stops18h 52m
Deal found 8/9![Delta logo]()
$801
This oojo deal was found by Cheapflights users on 8/10. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/276:50 pm -
1 stop14h 05m
Thu 10/86:50 am -
2 stops20h 42m
Deal found 8/10![Lufthansa logo]()
$777
This Delta deal was found by Cheapflights users on 8/10. 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.
Sun 9/277:15 am -
2 stops19h 00m
Thu 10/86:45 am -
2 stops19h 00m
Deal found 8/10![Delta logo]()
$806
One-way flights from Seattle to BilbaoSearch for one-way flight options from Seattle to Bilbao. Find affordable one-way fares based on user searches. Data last updated August 11, 2026.
Search for one-way flight options from Seattle to Bilbao. Find affordable one-way fares based on user searches. Data last updated August 11, 2026.
This Kiwi.com deal was found by Cheapflights users on 8/8. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/78:21 am -
3 stops25h 14m
Deal found 8/8![Multiple Airlines logo]()
$240
This Kiwi.com deal was found by Cheapflights users on 8/8. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/3111:25 pm -
3 stops28h 25m
Deal found 8/8![Multiple Airlines logo]()
$340
This oojo deal was found by Cheapflights users on 8/8. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/72:50 pm -
1 stop17h 55m
Deal found 8/8![Lufthansa logo]()
$342
This Kiwi.com deal was found by Cheapflights users on 8/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/297:52 am -
3 stops39h 23m
Deal found 8/9![Multiple Airlines logo]()
$348
This Air France deal was found by Cheapflights users on 8/8. 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.
Sun 2/77:20 am -
2 stops19h 10m
Deal found 8/8![Air France logo]()
$350
This Kiwi.com deal was found by Cheapflights users on 8/8. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/307:00 pm -
3 stops39h 20m
Deal found 8/8![Multiple Airlines logo]()
$354
This Kiwi.com deal was found by Cheapflights users on 8/8. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/1211:25 pm -
2 stops52h 00m
Deal found 8/8![Multiple Airlines logo]()
$383
This Kiwi.com deal was found by Cheapflights users on 8/8. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1111:25 pm -
2 stops56h 05m
Deal found 8/8![Multiple Airlines logo]()
$385
This Kiwi.com deal was found by Cheapflights users on 8/8. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1011:25 pm -
3 stops23h 45m
Deal found 8/8![Multiple Airlines logo]()
$402
This Kiwi.com deal was found by Cheapflights users on 8/8. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/83:40 pm -
3 stops20h 20m
Deal found 8/8![Multiple Airlines logo]()
$405
Find flight deals from Seattle to Bilbao
Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) 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 August 11, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $773 (Cheapflightsfares) |
One-way from | $240 (Kiwi.com) |
Popular in | July |
Cheapest in | January |
Average price | $1,048 |
Cheapflights Fare Finder
Customize your flight search to find flights from Seattle 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 August 11, 2026.
Use the filters below to find and compare flights from Seattle to Bilbao that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
SeattleBilbao
SEA Seattle/Tacoma Intl - BIO Bilbao
SEABIO
Seattle/Tacoma Intl
Mon 10/12
2:10 pm-10:25 pm
1 stop23h 15m
Bilbao
Thu 10/22
6:50 am-10:42 pm
2 stops24h 52m
$784
SeattleBilbao
SEA Seattle/Tacoma Intl - BIO Bilbao
SEABIO
Seattle/Tacoma Intl
Sun 9/20
11:59 pm-9:50 am
2 stops24h 51m
Bilbao
Mon 10/5
12:00 pm-11:52 am
1 stop32h 52m
$787
SeattleBilbao
SEA Seattle/Tacoma Intl - BIO Bilbao
SEABIO
Seattle/Tacoma Intl
Tue 9/22
5:00 am-10:45 am
2 stops20h 45m
Bilbao
Tue 10/6
6:50 am-6:32 pm
2 stops20h 42m
$789
SeattleBilbao
SEA Seattle/Tacoma Intl - BIO Bilbao
SEABIO
Seattle/Tacoma Intl
Tue 9/22
11:45 am-5:30 pm
2 stops20h 45m
Bilbao
Tue 10/6
6:45 am-4:37 pm
2 stops18h 52m
$801
Quickest round-trip
SeattleBilbao
SEA Seattle/Tacoma Intl - BIO Bilbao
SEABIO
Seattle/Tacoma Intl
Thu 9/24
6:50 pm-5:55 pm
1 stop14h 05m
Bilbao
Thu 10/1
6:50 am-12:20 pm
1 stop14h 30m
$838
SeattleBilbao
SEA Seattle/Tacoma Intl - BIO Bilbao
SEABIO
Seattle/Tacoma Intl
Thu 12/24
8:15 am-5:45 pm
2 stops24h 30m
Bilbao
Thu 12/31
6:45 am-8:59 pm
2 stops23h 14m
$847
SeattleBilbao
SEA Seattle/Tacoma Intl - BIO Bilbao
SEABIO
Seattle/Tacoma Intl
Fri 10/16
6:50 pm-5:55 pm
1 stop14h 05m
Bilbao
Tue 10/20
11:10 am-2:22 pm
2 stops36h 12m
$858
Cheapest one-way
SeattleBilbao
SEA Seattle/Tacoma Intl - BIO Bilbao
SEABIO
Seattle/Tacoma Intl
Tue 9/29
7:00 pm-10:40 pm
2 stops18h 40m
$361
SeattleBilbao
SEA Seattle/Tacoma Intl - BIO Bilbao
SEABIO
Seattle/Tacoma Intl
Wed 9/9
6:50 pm-11:25 pm
1 stop19h 35m
$423
SeattleBilbao
SEA Seattle/Tacoma Intl - BIO Bilbao
SEABIO
Seattle/Tacoma Intl
Sat 8/29
7:00 pm-9:00 pm
3 stops41h 00m
$452
Showing 1-10 of 16 resultsSorted by cheapest first
Compare providers for flights from Seattle 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 Seattle to Bilbao in August.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Seattle-Bilbao flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Seattle-Bilbao flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Seattle-Bilbao flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Seattle-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 Seattle-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 Seattle to Bilbao
Have a flexible travel schedule? Discover the best time to fly to Bilbao from Seattle with our price prediction graph.
SEA-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.
Cheapflights Insights
Everything you need to know about your flight from Seattle to Bilbao
How far ahead should I book a flight from Seattle to Bilbao?
The best time to book flights from Seattle to Bilbao is 70 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
How much does it cost to fly round-trip from Seattle to Bilbao?
Airfare is below average for this route at the moment.
Seattle to Bilbao flights typically cost between $876 and $1,411 in September.The cheapest round-trip price found within the last 5 days was $773 on Lufthansa (Sep 22-Oct 6).
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 August 11, 2026.
Peruse reviews from past customers who have flown with KLM,Delta, andUnited Airlines from Seattle to Bilbao to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Boarding
7.8
Entertainment
7.2
Food
7.3
Comfort
7.7
Overall
7.8
Crew
8.4
Reviews
1 / 20
6.0
GoodAnonymous,Apr 2026
OKC - ATL
Boarding
7.8
Entertainment
7.2
Food
7.3
Comfort
7.7
Overall
7.8
Crew
8.4
Reviews
1 / 20
6.0
GoodAnonymous,Apr 2026
OKC - ATL
Boarding
7.8
Entertainment
7.2
Food
7.3
Comfort
7.7
Overall
7.8
Crew
8.4
Reviews
1 / 20
6.0
GoodAnonymous,Apr 2026
OKC - ATL
Boarding
7.8
Entertainment
7.2
Food
7.3
Comfort
7.7
Overall
7.8
Crew
8.4
Reviews
1 / 20
6.0
GoodAnonymous,Apr 2026
OKC - ATL
Boarding
7.8
Entertainment
7.2
Food
7.3
Comfort
7.7
Overall
7.8
Crew
8.4
Reviews
1 / 20
6.0
GoodAnonymous,Apr 2026
OKC - ATL
Related info for your journey
Find useful and relevant information for your journey from Seattle to Bilbao. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Other flights to Bilbao
Explore flights to Bilbao departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on August 11, 2026.
Complete your trip
Complete your trip to Bilbao by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Seattle to Bilbao by cabin class
Find flights from Seattle to Bilbao, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Seattle and Bilbao flights
Browse other Seattle and Bilbao flight options. Last updated on August 11, 2026.
Other flights from Seattle
Browse through other flights departing from Seattle. Flights are based on user searches made on Cheapflights and were last updated on August 11, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 4 airlines flying from Seattle to Bilbao
Discover the top 4 airlines that operate flights from Seattle 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 August 11, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$484 | Average$939 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$522 | Average$898 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$581 | Average$963 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$654 | Average$1,040 | FlexibilityNo cancel fee | On-timeN/A |