Cheap flights from Seattle to Bilbao from $319
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to Bilbao departing on 2/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Not ready to book? to track prices.Lufthansa flights from Seattle to Bilbao
Our best Lufthansa deals on Seattle to Bilbao flight tickets
Delta flights from Seattle to Bilbao
Our best Delta deals on Seattle to Bilbao flight tickets
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Fly from
Fly to
Route
Depart
Return
SeattleBilbao
SEA Seattle/Tacoma Intl - BIO Bilbao
SEABIO
Seattle/Tacoma Intl
Mon 11/2
3:35 pm-9:20 pm
2 stops20h 45m
Bilbao
Wed 11/18
9:50 am-11:07 pm
2 stops22h 17m
SeattleBilbao
SEA Seattle/Tacoma Intl - BIO Bilbao
SEABIO
Seattle/Tacoma Intl
Mon 11/2
1:50 pm-5:00 pm
1 stop18h 10m
Bilbao
Wed 11/18
7:30 am-1:00 pm
1 stop14h 30m
SeattleBilbao
SEA Seattle/Tacoma Intl - BIO Bilbao
SEABIO
Seattle/Tacoma Intl
Tue 12/1
10:10 am-9:55 pm
2 stops26h 45m
Bilbao
Tue 12/8
6:45 am-9:57 pm
2 stops24h 12m
SeattleBilbao
SEA Seattle/Tacoma Intl - BIO Bilbao
SEABIO
Seattle/Tacoma Intl
Tue 12/1
4:05 pm-5:25 pm
1 stop16h 20m
Bilbao
Tue 12/8
6:50 am-11:50 am
1 stop14h 00m
SeattleBilbao
SEA Seattle/Tacoma Intl - BIO Bilbao
SEABIO
Seattle/Tacoma Intl
Tue 12/1
11:00 am-5:25 pm
2 stops21h 25m
Bilbao
Tue 12/8
6:50 am-11:50 am
1 stop14h 00m
SeattleBilbao
SEA Seattle/Tacoma Intl - BIO Bilbao
SEABIO
Seattle/Tacoma Intl
Sat 3/20
10:45 pm-4:10 pm
2 stops33h 25m
Bilbao
Sun 3/28
6:50 am-11:55 am
1 stop14h 05m
SeattleBilbao
SEA Seattle/Tacoma Intl - BIO Bilbao
SEABIO
Seattle/Tacoma Intl
Tue 12/1
10:10 am-9:55 pm
2 stops26h 45m
Bilbao
Tue 12/8
11:45 am-1:00 pm
1 stop34h 15m
SeattleBilbao
SEA Seattle/Tacoma Intl - BIO Bilbao
SEABIO
Seattle/Tacoma Intl
Mon 11/2
11:15 pm-11:00 am
2 stops26h 45m
Bilbao
Wed 11/18
7:30 am-1:00 pm
1 stop14h 30m
SeattleBilbao
SEA Seattle/Tacoma Intl - BIO Bilbao
SEABIO
Seattle/Tacoma Intl
Sat 10/17
10:35 pm-9:50 am
2 stops26h 15m
Bilbao
Fri 10/23
7:10 am-6:52 pm
2 stops20h 42m
SeattleBilbao
SEA Seattle/Tacoma Intl - BIO Bilbao
SEABIO
Seattle/Tacoma Intl
Tue 10/27
5:05 pm-5:25 pm
1 stop16h 20m
Bilbao
Tue 11/10
6:50 am-11:47 am
1 stop13h 57m
See travel insights to Bilbao from
How to get the cheapest flight ticket from Seattle to Bilbao
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the typical price of a round-trip flight between Seattle and Bilbao?
Prices are currently typical for flights on this route.
Typical prices usually range from $679 to $778.The lowest price recently found on this route was $731.
What is the cheapest airline that flies from Seattle/Tacoma Intl to Bilbao?
KLM, Lufthansa, and Iberia are the most popular carriers operating from Seattle/Tacoma Intl to Bilbao
What airlines fly to Bilbao?
Lufthansa, Delta and United Airlines are the top three most popular airlines that fly to Bilbao from Seattle according to our data. Lufthansa is the first choice among our users, with 54% of people opting to fly with this airline when traveling to Bilbao. Keep in mind that there are 4 different airlines that fly to Bilbao on a routine basis, so you have a few additional options to choose from.
Which airport is the most popular layover for flights between Seattle and Bilbao?
Munich (MUC) was the most common stop: 60% of momondo users choosing 1-stop flights on this route connected there.
Which layover airport offers the lowest fares from Seattle to Bilbao?
Flights via Frankfurt am Main (FRA) offer the lowest average round-trip price of $1,141.
Which layover airport has the shortest travel time from Seattle to Bilbao?
Flights connecting via Paris (CDG) have the shortest average one-way travel time: 13h 45m.
Which layover airport has the shortest connection time from Seattle to Bilbao?
Amsterdam (AMS) has the shortest average layover time for this route: 1h 30m.
When to book flights from Seattle to Bilbao
Cheap Seattle to Bilbao (SEA to BIO) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Seattle to Bilbao
Frequently asked questions about flying from Seattle to Bilbao
How far is Seattle/Tacoma Intl to Bilbao by plane?
The distance between Seattle/Tacoma Intl and Bilbao is about 5152.4 mi. 14h 05m is a normal flight duration for this route.
When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Bilbao Airport?
Prices for flights from Seattle/Tacoma Intl Airport to Bilbao Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to Bilbao Airport?
As of October 2026, there are 4 operators available to choose from for flights from Seattle/Tacoma Intl Airport to Bilbao Airport.
How old do you have to be to fly from Seattle/Tacoma Intl Airport to Bilbao Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Seattle/Tacoma Intl Airport to Bilbao Airport.
What documentation or ID do you need to fly to Bilbao Airport?
The travel and health documents required for your trip to Bilbao Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Bilbao Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular airline from Seattle to Bilbao?
Based on momondo bookings for flights between Seattle and Bilbao, the leading airline is Lufthansa, making up 54% of the total bookings. Other popular airlines include Delta with 22%, United Airlines with 13%, and KLM with 12%.
Best airlines flying from Seattle to Bilbao
Compare and see reviews for airlines that fly from Seattle to Bilbao with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $484 | Free Cancellation | Rating 7.4 10,289 reviews | |||
| PriceFrom $514 | Free Cancellation | Rating 6.8 8,263 reviews | |||
| PriceFrom $581 | Free Cancellation | Rating 7.8 1,580 reviews | |||
| PriceFrom $654 | Free Cancellation | Rating 7.8 8,634 reviews |
Traveling to a place near Bilbao?
Book flights to Bilbao if you plan to visit one of these locationsWhy use momondo?
Why should I use momondo to find a flight deal from Seattle to Bilbao?
To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Bilbao from Seattle.
Can I find flights from Seattle to Bilbao with flexible booking policies on momondo?
Yes. momondo allows you to filter the results for Seattle to Bilbao flights to just show those with flexible booking policies.
How can momondo help me find flights from Seattle to Bilbao?
Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Bilbao from Seattle.
I’m not ready to book a flight from Seattle to Bilbao right now. Can momondo alert me if prices change?
If you are not ready to book a flight from Seattle to Bilbao now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Bilbao and let you know when they change.