$213+ 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 8/29. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — BIO
Jul 11 — Jul 181
Round-trip
1 adult, Economy
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Find cheap flights from Seattle to Bilbao with Cheapflights
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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
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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 June 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 June 11, 2026.
This Travelocity deal was found by Cheapflights users on 6/7. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/153:55 pm
SEA
- BIO
1 stop17h 50m
Scandinavian Airlines
Wed 9/237:35 pm
BIO
- SEA
2 stops36h 15m
Scandinavian Airlines
Deal found 6/7![Scandinavian Airlines logo]()
$708
This Cheapflightsfares deal was found by Cheapflights users on 6/10. 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.
Mon 10/127:00 am
SEA
- BIO
2 stops28h 05m
SWISS
Thu 10/228:45 pm
BIO
- SEA
2 stops35h 11m
SWISS
Deal found 6/10![SWISS logo]()
$710
This Gotogate deal was found by Cheapflights users on 6/11. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/276:50 pm
SEA
- BIO
1 stop19h 35m
Multiple Airlines
Fri 10/96:45 am
BIO
- SEA
2 stops20h 47m
Multiple Airlines
Deal found 6/11![Multiple Airlines logo]()
$713
This Gotogate deal was found by Cheapflights users on 6/11. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/276:50 pm
SEA
- BIO
1 stop19h 35m
Lufthansa
Fri 10/96:45 am
BIO
- SEA
1 stop14h 35m
Lufthansa
Deal found 6/11![Lufthansa logo]()
$714
This Scandinavian Airlines deal was found by Cheapflights users on 6/7. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/63:55 pm
SEA
- BIO
1 stop17h 50m
Scandinavian Airlines
Wed 10/217:35 pm
BIO
- SEA
2 stops35h 29m
Scandinavian Airlines
Deal found 6/7![Scandinavian Airlines logo]()
$722
This oojo deal was found by Cheapflights users on 6/9. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/122:10 pm
SEA
- BIO
1 stop14h 10m
Lufthansa
Thu 10/226:50 am
BIO
- SEA
1 stop14h 30m
Lufthansa
Deal found 6/9![Lufthansa logo]()
$725
This Delta deal was found by Cheapflights users on 6/7. 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 10/46:45 pm
SEA
- BIO
1 stop13h 45m
Delta
Wed 10/216:45 am
BIO
- SEA
1 stop14h 07m
Delta
Deal found 6/7![Delta logo]()
$726
This United Airlines deal was found by Cheapflights users on 6/7. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/76:50 pm
SEA
- BIO
1 stop19h 35m
United Airlines
Wed 10/216:50 am
BIO
- SEA
1 stop14h 30m
United Airlines
Deal found 6/7![United Airlines logo]()
$728
This KLM deal was found by Cheapflights users on 6/6. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/281:50 pm
SEA
- BIO
1 stop17h 40m
KLM
Thu 10/86:45 am
BIO
- SEA
1 stop14h 07m
KLM
Deal found 6/6![KLM logo]()
$731
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 June 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 June 11, 2026.
This United Airlines deal was found by Cheapflights users on 6/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/2710:58 pm
SEA
- BIO
2 stops32h 02m
United Airlines
Fri 10/92:00 pm
BIO
- SEA
2 stops28h 36m
United Airlines
Deal found 6/11![United Airlines logo]()
$743
This Delta deal was found by Cheapflights users on 6/6. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/45:30 am
SEA
- BIO
2 stops19h 20m
Delta
Fri 9/116:45 am
BIO
- SEA
2 stops19h 10m
Delta
Deal found 6/6![Delta logo]()
$831
This United deal was found by Cheapflights users on 6/8. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/28:10 am
SEA
- BIO
2 stops24h 45m
Multiple Airlines
Sun 10/116:50 am
BIO
- SEA
2 stops24h 52m
Multiple Airlines
Deal found 6/8![Multiple Airlines logo]()
$833
This Lufthansa deal was found by Cheapflights users on 6/10. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/36:50 pm
SEA
- BIO
1 stop19h 35m
Lufthansa
Sat 9/196:50 am
BIO
- SEA
1 stop14h 05m
Lufthansa
Deal found 6/10![Lufthansa logo]()
$901
This United Airlines deal was found by Cheapflights users on 6/10. 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 9/110:42 am
SEA
- BIO
2 stops27h 43m
United Airlines
Tue 9/86:50 am
BIO
- SEA
1 stop14h 05m
United Airlines
Deal found 6/10![United Airlines logo]()
$822
This Delta deal was found by Cheapflights users on 6/10. 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.
Mon 8/175:30 am
SEA
- BIO
2 stops19h 20m
Delta
Sun 8/236:45 am
BIO
- SEA
1 stop13h 52m
Delta
Deal found 6/10![Delta logo]()
$880
This Cheapflightsfares deal was found by Cheapflights users on 6/11. 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.
Sun 8/306:50 pm
SEA
- BIO
1 stop19h 35m
Lufthansa
Sat 9/126:50 am
BIO
- SEA
2 stops20h 42m
Lufthansa
Deal found 6/11![Lufthansa logo]()
$908
This United Airlines deal was found by Cheapflights users on 6/8. 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.
Thu 10/1510:42 am
SEA
- BIO
2 stops20h 18m
United Airlines
Sun 10/256:45 am
BIO
- SEA
1 stop14h 15m
United Airlines
Deal found 6/8![United Airlines logo]()
$833
This United Airlines deal was found by Cheapflights users on 6/6. 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.
Mon 9/2812:00 pm
SEA
- BIO
3 stops43h 00m
United Airlines
Fri 10/96:45 am
BIO
- SEA
2 stops22h 52m
United Airlines
Deal found 6/6![United Airlines logo]()
$836
This United Airlines deal was found by Cheapflights users on 6/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/217:30 am
SEA
- BIO
1 stop18h 15m
United Airlines
Tue 7/287:15 am
BIO
- SEA
1 stop18h 44m
United Airlines
Deal found 6/9![United Airlines logo]()
$904
Last-minute flights from Seattle to BilbaoDiscover last-minute flight deals from Seattle to Bilbao. Data last updated June 11, 2026 and is based on user searches.
Discover last-minute flight deals from Seattle to Bilbao. Data last updated June 11, 2026 and is based on user searches.
This Cheapflightsfares deal was found by Cheapflights users on 6/9. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/73:00 pm
SEA
- BIO
2 stops17h 55m
Lufthansa
Tue 7/146:50 am
BIO
- SEA
2 stops21h 16m
Lufthansa
Deal found 6/9![Lufthansa logo]()
$901
This Mytrip deal was found by Cheapflights users on 6/9. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/73:40 pm
SEA
- BIO
2 stops17h 55m
Multiple Airlines
Tue 7/141:45 pm
BIO
- SEA
2 stops31h 00m
Multiple Airlines
Deal found 6/9![Multiple Airlines logo]()
$912
This Gotogate deal was found by Cheapflights users on 6/9. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/86:50 pm
SEA
- BIO
1 stop14h 05m
Lufthansa
Wed 7/156:50 am
BIO
- SEA
2 stops24h 52m
Lufthansa
Deal found 6/9![Lufthansa logo]()
$897
This Air Canada deal was found by Cheapflights users on 6/9. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/83:00 pm
SEA
- BIO
2 stops17h 55m
Multiple Airlines
Wed 7/156:50 am
BIO
- SEA
2 stops24h 52m
Multiple Airlines
Deal found 6/9![Multiple Airlines logo]()
$908
This Gotogate deal was found by Cheapflights users on 6/7. 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.
Tue 7/146:50 pm
SEA
- BIO
1 stop14h 05m
Lufthansa
Tue 7/287:15 am
BIO
- SEA
1 stop18h 44m
Lufthansa
Deal found 6/7![Lufthansa logo]()
$881
This Gotogate deal was found by Cheapflights users on 6/6. 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.
Tue 7/216:50 pm
SEA
- BIO
1 stop14h 05m
Lufthansa
Tue 7/287:15 am
BIO
- SEA
1 stop18h 44m
Lufthansa
Deal found 6/6![Lufthansa logo]()
$886
This United Airlines deal was found by Cheapflights users on 6/6. 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.
Tue 7/218:15 am
SEA
- BIO
2 stops17h 30m
United Airlines
Tue 7/2811:55 am
BIO
- SEA
1 stop14h 04m
United Airlines
Deal found 6/6![United Airlines logo]()
$898
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 June 11, 2026.
Search for one-way flight options from Seattle to Bilbao. Find affordable one-way fares based on user searches. Data last updated June 11, 2026.
This Kiwi.com deal was found by Cheapflights users on 6/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/296:35 pm
SEA
- BIO
3 stops41h 25m
Multiple Airlines
Deal found 6/10![Multiple Airlines logo]()
$213
This Kiwi.com deal was found by Cheapflights users on 6/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/306:35 pm
SEA
- BIO
3 stops41h 25m
Multiple Airlines
Deal found 6/10![Multiple Airlines logo]()
$243
This Kiwi.com deal was found by Cheapflights users on 6/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/266:35 pm
SEA
- BIO
3 stops28h 40m
Multiple Airlines
Deal found 6/10![Multiple Airlines logo]()
$275
This Kiwi.com deal was found by Cheapflights users on 6/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/276:35 pm
SEA
- BIO
3 stops28h 45m
Multiple Airlines
Deal found 6/10![Multiple Airlines logo]()
$310
This Kiwi.com deal was found by Cheapflights users on 6/9. 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.
Thu 9/103:40 pm
SEA
- BIO
3 stops44h 20m
Multiple Airlines
Deal found 6/9![Multiple Airlines logo]()
$341
This Kiwi.com deal was found by Cheapflights users on 6/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/283:40 pm
SEA
- BIO
2 stops19h 20m
Multiple Airlines
Deal found 6/10![Multiple Airlines logo]()
$343
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 June 11, 2026.
Most accurate provider | Ovago 3 stars |
|---|---|
Most trusted provider | Ovago 3 stars |
Round-trip from | $708 (Travelocity) |
One-way from | $213 (Kiwi.com) |
Popular in | July |
Cheapest in | January |
Average price | $1,045 |
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 June 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 - BIO
SEABIO
Seattle/Tacoma Intl
Sun 9/27
10:58 pm-4:00 pm
2 stops32h 02m
Bilbao
Fri 10/9
2:00 pm-9:36 am
2 stops28h 36m
$743
SeattleBilbao
SEA - BIO
SEABIO
Seattle/Tacoma Intl
Tue 9/1
10:42 am-11:25 pm
2 stops27h 43m
Bilbao
Tue 9/8
6:50 am-11:55 am
1 stop14h 05m
$822
SeattleBilbao
SEA - BIO
SEABIO
Seattle/Tacoma Intl
Fri 9/4
5:30 am-9:50 am
2 stops19h 20m
Bilbao
Fri 9/11
6:45 am-4:55 pm
2 stops19h 10m
$831
SeattleBilbao
SEA - BIO
SEABIO
Seattle/Tacoma Intl
Fri 10/2
8:10 am-5:55 pm
2 stops24h 45m
Bilbao
Sun 10/11
6:50 am-10:42 pm
2 stops24h 52m
$833
SeattleBilbao
SEA - BIO
SEABIO
Seattle/Tacoma Intl
Thu 10/15
10:42 am-4:00 pm
2 stops20h 18m
Bilbao
Sun 10/25
6:45 am-1:00 pm
1 stop14h 15m
$833
SeattleBilbao
SEA - BIO
SEABIO
Seattle/Tacoma Intl
Mon 9/28
12:00 pm-4:00 pm
3 stops43h 00m
Bilbao
Fri 10/9
6:45 am-8:37 pm
2 stops22h 52m
$836
Quickest round-trip
SeattleBilbao
SEA - BIO
SEABIO
Seattle/Tacoma Intl
Mon 8/17
5:30 am-9:50 am
2 stops19h 20m
Bilbao
Sun 8/23
6:45 am-11:37 am
1 stop13h 52m
$880
SeattleBilbao
SEA - BIO
SEABIO
Seattle/Tacoma Intl
Thu 9/3
6:50 pm-11:25 pm
1 stop19h 35m
Bilbao
Sat 9/19
6:50 am-11:55 am
1 stop14h 05m
$901
SeattleBilbao
SEA - BIO
SEABIO
Seattle/Tacoma Intl
Tue 7/21
7:30 am-10:45 am
1 stop18h 15m
Bilbao
Tue 7/28
7:15 am-4:59 pm
1 stop18h 44m
$904
SeattleBilbao
SEA - BIO
SEABIO
Seattle/Tacoma Intl
Sun 8/30
6:50 pm-11:25 pm
1 stop19h 35m
Bilbao
Sat 9/12
6:50 am-6:32 pm
2 stops20h 42m
$908
Showing 1-10 of 17 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 June.
| 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 Ovago to be most consistent on Cheapflights vs. Ovago Users can find the same prices on Seattle-Bilbao flight deals on Cheapflights vs. Ovago >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 Ovago the most. Ovago 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
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 June 11, 2026.
Peruse reviews from past customers who have flown with Delta,KLM, 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.
Crew
8.5
Overall
7.9
Food
7.2
Entertainment
7.8
Boarding
8.1
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Crew
8.5
Overall
7.9
Food
7.2
Entertainment
7.8
Boarding
8.1
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Crew
8.5
Overall
7.9
Food
7.2
Entertainment
7.8
Boarding
8.1
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Crew
8.5
Overall
7.9
Food
7.2
Entertainment
7.8
Boarding
8.1
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Crew
8.5
Overall
7.9
Food
7.2
Entertainment
7.8
Boarding
8.1
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
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 June 11, 2026.
Complete your trip
Complete your trip to Bilbao by adding a car rental and/or hotel reservation to your travel itinerary.
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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 June 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 June 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 June 11, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$484 | Average$939 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$514 | Average$907 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$586 | Average$1,069 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$731 | Average$1,050 | FlexibilityNo cancel fee | On-timeN/A |