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Cheap flights from Barcelona-El Prat Airport to Seattle from $557

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Barcelona-El Prat Airport to Seattle departing on 9/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Barcelona-El Prat Airport to Seattle

Cheap round-trip flights

Enter your travel dates to find the best prices.
Condor Logo
10:25 am - 3:40 pmBCN  Barcelona-El Prat-SEA Seattle/Tacoma Intl
14h 15m1 stop Frankfurt am Main
Condor Logo
6:10 pm - 10:10 pmSEA  Seattle/Tacoma Intl-BCN Barcelona-El Prat
19h 00m1 stop Frankfurt am Main
$557Condor
Tue, Sep 1 - Mon, Sep 7
Condor Logo
7:00 am - 2:55 pmBCN  Barcelona-El Prat-SEA Seattle/Tacoma Intl
15h 55m1 stop Frankfurt am Main
Condor Logo
5:15 pm - 10:10 pmSEA  Seattle/Tacoma Intl-BCN Barcelona-El Prat
20h 55m1 stop Frankfurt am Main
$558Condor
Sun, Oct 25 - Sun, Oct 25
Multiple Airlines Logo
8:00 am - 11:12 pmBCN  Barcelona-El Prat-SEA Seattle/Tacoma Intl
24h 12m2 stops Frankfurt am Main Boston Logan Intl
Multiple Airlines Logo
6:15 pm - 10:10 pmSEA  Seattle/Tacoma Intl-BCN Barcelona-El Prat
18h 55m1 stop Frankfurt am Main
$669Multiple Airlines
Fri, Aug 28 - Sat, Sep 12
Icelandair Logo
3:45 pm - 8:40 pmBCN  Barcelona-El Prat-SEA Seattle/Tacoma Intl
13h 55m1 stop Reykjavik Keflavik Intl
Icelandair Logo
3:35 pm - 1:40 pmSEA  Seattle/Tacoma Intl-BCN Barcelona-El Prat
14h 05m1 stop Reykjavik Keflavik Intl
$699Icelandair
Fri, Oct 23 - Wed, Oct 28
Delta Logo
1:20 pm - 3:45 pmBCN  Barcelona-El Prat-SEA Seattle/Tacoma Intl
11h 25mnonstop
Delta Logo
3:35 pm - 11:10 amSEA  Seattle/Tacoma Intl-BCN Barcelona-El Prat
10h 35mnonstop
$862Delta
Fri, Aug 28 - Sat, Sep 12
Delta Logo
1:20 pm - 3:45 pmBCN  Barcelona-El Prat-SEA Seattle/Tacoma Intl
11h 25mnonstop
Delta Logo
3:35 pm - 11:10 amSEA  Seattle/Tacoma Intl-BCN Barcelona-El Prat
10h 35mnonstop
$862Delta
Fri, Sep 4 - Tue, Sep 15
Lufthansa Logo
5:55 am - 12:00 pmBCN  Barcelona-El Prat-SEA Seattle/Tacoma Intl
15h 05m1 stop Frankfurt am Main
Lufthansa Logo
8:00 am - 9:00 amSEA  Seattle/Tacoma Intl-BCN Barcelona-El Prat
16h 00m1 stop Washington, D.C. Dulles Intl
$899Lufthansa
Mon, Nov 9 - Tue, Dec 15
Lufthansa Logo
6:50 am - 12:00 pmBCN  Barcelona-El Prat-SEA Seattle/Tacoma Intl
14h 10m1 stop Frankfurt am Main
Lufthansa Logo
8:00 am - 9:00 amSEA  Seattle/Tacoma Intl-BCN Barcelona-El Prat
16h 00m1 stop Washington, D.C. Dulles Intl
$899Lufthansa
Sat, Nov 7 - Tue, Dec 15
British Airways Logo
10:40 am - 10:11 pmBCN  Barcelona-El Prat-SEA Seattle/Tacoma Intl
20h 31m1 stop Dallas/Fort Worth
British Airways Logo
1:30 pm - 11:20 amSEA  Seattle/Tacoma Intl-BCN Barcelona-El Prat
12h 50m1 stop London Heathrow
$915British Airways
Tue, Nov 10 - Tue, Dec 15
British Airways Logo
12:00 pm - 9:50 pmBCN  Barcelona-El Prat-SEA Seattle/Tacoma Intl
18h 50m1 stop Philadelphia
British Airways Logo
1:40 pm - 1:20 pmSEA  Seattle/Tacoma Intl-BCN Barcelona-El Prat
14h 40m1 stop London Heathrow
$943British Airways
Mon, Dec 7 - Thu, Dec 17

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Condor flights from Barcelona-El Prat Airport to Seattle

Our best Condor deals on Barcelona-El Prat Airport to Seattle flight tickets
Condor
Sep 1
BCN10:25 amBarcelona-El Prat
14h 15m
1 stop
SEA3:40 pmSeattle/Tacoma Intl
Sep 7
SEA6:10 pmSeattle/Tacoma Intl
19h 00m
1 stop
BCN10:10 pmBarcelona-El Prat
$557
Condor
Oct 25
BCN7:00 amBarcelona-El Prat
15h 55m
1 stop
SEA2:55 pmSeattle/Tacoma Intl
Oct 25
SEA5:15 pmSeattle/Tacoma Intl
20h 55m
1 stop
BCN10:10 pmBarcelona-El Prat
$558
Condor
Oct 22
BCN8:00 amBarcelona-El Prat
17h 00m
1 stop
SEA4:00 pmSeattle/Tacoma Intl
Oct 22
SEA6:05 pmSeattle/Tacoma Intl
13h 00m
1 stop
BCN4:05 pmBarcelona-El Prat
$617

Delta flights from Barcelona-El Prat Airport to Seattle

Our best Delta deals on Barcelona-El Prat Airport to Seattle flight tickets
Delta
Aug 19
BCN1:20 pmBarcelona-El Prat
11h 25m
SEA3:45 pmSeattle/Tacoma Intl
Aug 29
SEA6:40 pmSeattle/Tacoma Intl
13h 30m
1 stop
BCN5:10 pmBarcelona-El Prat
$1,054
Delta
Aug 19
BCN1:20 pmBarcelona-El Prat
11h 25m
SEA3:45 pmSeattle/Tacoma Intl
Aug 29
SEA6:40 pmSeattle/Tacoma Intl
13h 30m
1 stop
BCN5:10 pmBarcelona-El Prat
$1,056

momondo Fare Finder

 
Customize your flight search to find flights from Barcelona-El Prat Airport to Seattle 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, momondo users made 832,500 searches. Data last updated August 7, 2026.
Use the filters below to find and compare flights from Barcelona-El Prat Airport to Seattle that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BarcelonaSeattle

BCN Barcelona-El Prat - SEA Seattle/Tacoma Intl

BCNSEA

Barcelona-El Prat

Tue 9/1

10:25 am-3:40 pm

1 stop14h 15m

Seattle/Tacoma Intl

Mon 9/7

6:10 pm-10:10 pm

1 stop19h 00m

$557

BarcelonaSeattle

BCN Barcelona-El Prat - SEA Seattle/Tacoma Intl

BCNSEA

Barcelona-El Prat

Sun 10/25

7:00 am-2:55 pm

1 stop15h 55m

Seattle/Tacoma Intl

Sun 10/25

5:15 pm-10:10 pm

1 stop20h 55m

$558

BarcelonaSeattle

BCN Barcelona-El Prat - SEA Seattle/Tacoma Intl

BCNSEA

Barcelona-El Prat

Fri 8/28

8:00 am-11:12 pm

2 stops24h 12m

Seattle/Tacoma Intl

Sat 9/12

6:15 pm-10:10 pm

1 stop18h 55m

$669

BarcelonaSeattle

BCN Barcelona-El Prat - SEA Seattle/Tacoma Intl

BCNSEA

Barcelona-El Prat

Fri 10/23

3:45 pm-8:40 pm

1 stop13h 55m

Seattle/Tacoma Intl

Wed 10/28

3:35 pm-1:40 pm

1 stop14h 05m

$699
Quickest round-trip

BarcelonaSeattle

BCN Barcelona-El Prat - SEA Seattle/Tacoma Intl

BCNSEA

Barcelona-El Prat

Fri 8/28

1:20 pm-3:45 pm

Nonstop11h 25m

Seattle/Tacoma Intl

Sat 9/12

3:35 pm-11:10 am

Nonstop10h 35m

$862

BarcelonaSeattle

BCN Barcelona-El Prat - SEA Seattle/Tacoma Intl

BCNSEA

Barcelona-El Prat

Fri 9/4

1:20 pm-3:45 pm

Nonstop11h 25m

Seattle/Tacoma Intl

Tue 9/15

3:35 pm-11:10 am

Nonstop10h 35m

$862

BarcelonaSeattle

BCN Barcelona-El Prat - SEA Seattle/Tacoma Intl

BCNSEA

Barcelona-El Prat

Mon 11/9

5:55 am-12:00 pm

1 stop15h 05m

Seattle/Tacoma Intl

Tue 12/15

8:00 am-9:00 am

1 stop16h 00m

$899

BarcelonaSeattle

BCN Barcelona-El Prat - SEA Seattle/Tacoma Intl

BCNSEA

Barcelona-El Prat

Sat 11/7

6:50 am-12:00 pm

1 stop14h 10m

Seattle/Tacoma Intl

Tue 12/15

8:00 am-9:00 am

1 stop16h 00m

$899

BarcelonaSeattle

BCN Barcelona-El Prat - SEA Seattle/Tacoma Intl

BCNSEA

Barcelona-El Prat

Tue 11/10

10:40 am-10:11 pm

1 stop20h 31m

Seattle/Tacoma Intl

Tue 12/15

1:30 pm-11:20 am

1 stop12h 50m

$915

BarcelonaSeattle

BCN Barcelona-El Prat - SEA Seattle/Tacoma Intl

BCNSEA

Barcelona-El Prat

Mon 12/7

12:00 pm-9:50 pm

1 stop18h 50m

Seattle/Tacoma Intl

Thu 12/17

1:40 pm-1:20 pm

1 stop14h 40m

$943

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Seattle from

How to get the cheapest flight ticket from Barcelona-El Prat Airport to Seattle

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 Barcelona-El Prat Airport and Seattle?

Prices are currently low for flights on this route.

Typical prices usually range from $785 to $1,009.
The lowest price recently found on this route was $557.

What is the cheapest month to fly to Seattle?

In general, January is the cheapest month to fly from Barcelona-El Prat Airport to Seattle. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $803. If you don’t want to visit Seattle in January, then you should wait until September to fly from Barcelona-El Prat Airport, when ticket prices are also cheap, with an average price of $812.

What is the cheapest day to depart on your flight to Seattle?

On average, the least expensive day to fly to Seattle from Barcelona-El Prat Airport is on a Sunday. momondo users have found tickets for Sunday departures for as low as $1,026. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Friday is the most expensive day to depart from Barcelona-El Prat Airport because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $1,133.

What is the cheapest Barcelona-El Prat to Seattle/Tacoma Intl flight route?

Fly from Barcelona-El Prat to Seattle/Tacoma Intl for the best Barcelona-El Prat - Seattle/Tacoma Intl flight prices

How far in advance should I book a flight from Barcelona-El Prat Airport to Seattle?

You are more likely to see cheaper flights to Seattle from Barcelona-El Prat Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Seattle for around $888 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seattle from Barcelona-El Prat Airport for as low as $632 on momondo.

What cabin class options are available on Barcelona-El Prat Airport to Seattle flights?

There are 2 cabin classes available to choose from on Barcelona-El Prat Airport to Seattle flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Barcelona-El Prat Airport to Seattle flights?

You could potentially save up to 40% on your flight if you consider stops on a Barcelona-El Prat Airport to Seattle flight.

How have Barcelona-El Prat Airport to Seattle flight prices changed over time?

As of August 2026, prices for Barcelona-El Prat Airport to Seattle flights are approximately 2% cheaper when compared to flights at the same time last year.

When to book flights from Barcelona-El Prat Airport to Seattle

Are you open to changing your travel dates? Check out the ideal times to fly from Barcelona-El Prat Airport to Seattle according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Barcelona-El Prat Airport to Seattle (BCN to SEA) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Barcelona-El Prat Airport to Seattle

Fastest flight time

11h 25m

Direct flights

Mon, Thu and Sat

Airports in Seattle

1 airport
The fastest flight from Barcelona-El Prat Airport to Seattle takes 11h 25m
Direct flights go from Barcelona-El Prat Airport to Seattle on Monday, Thursday and Saturday. There are no airlines offering direct flights.
There is 1 airport in Seattle. From Barcelona-El Prat Airport there are direct flights to Seattle/Tacoma Intl (SEA).
Search flight deals

Frequently asked questions about flying from Barcelona-El Prat Airport to Seattle

  • How far is Barcelona-El Prat to Seattle/Tacoma Intl by plane?

    A flight from Barcelona-El Prat to Seattle/Tacoma Intl will travel around 5412.9 mi. By plane, this route typically takes 11h 25m.

  • When did momondo last update prices for flights from Barcelona-El Prat Airport to Seattle/Tacoma Intl Airport?

    Prices for flights from Barcelona-El Prat Airport to Seattle/Tacoma Intl Airport were last updated today.

  • How many operators does momondo search for flights from Barcelona-El Prat Airport to Seattle/Tacoma Intl Airport?

  • How old do you have to be to fly from Barcelona-El Prat Airport to Seattle/Tacoma Intl Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Barcelona-El Prat Airport to Seattle/Tacoma Intl Airport.

  • What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?

    The required travel and health documents for your Seattle/Tacoma Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Seattle/Tacoma Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular plane model from Barcelona-El Prat Airport to Seattle?

  • What is the most popular airline from Barcelona-El Prat Airport to Seattle?

Best airlines flying from Barcelona-El Prat Airport to Seattle

Compare and see reviews for airlines that fly from Barcelona-El Prat Airport to Seattle with momondo
Airline
Rating
Free Cancellation
Price
CondorPriceFrom $600Free CancellationRating
6.5
548 reviews
Search Condor flights
British AirwaysPriceFrom $662Free CancellationRating
6.7
8,153 reviews
Search British Airways flights
LufthansaPriceFrom $777Free CancellationRating
6.8
8,177 reviews
Search Lufthansa flights
DeltaPriceFrom $814Free CancellationRating
7.8
8,504 reviews
Search Delta flights

  • Delta Flights From Barcelona-El Prat Airport to Seattle

    Across 3 Delta flights from Barcelona-El Prat Airport to Seattle this week, the average price was $845, with the best Delta deals starting from $814 round-trip. 8,504 users have rated Delta on momondo, with an average score of 7.8/10.

Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
Tacoma
Leavenworth
SeaTac
Ocean Shores
Renton
Olympia
Kent
Lynnwood
Redmond
Lakewood
Puyallup
Fife
Federal Way
Tukwila
Cle Elum
Marysville
Kirkland
Centralia
Shoreline
Lacey

Why use momondo?

Why should I use momondo to find a flight deal from Barcelona to Seattle?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Barcelona to Seattle. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Barcelona to Seattle with flexible booking policies on momondo?

Yes. All flights to Seattle from Barcelona on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Barcelona to Seattle?

Once you have performed a search for Barcelona to Seattle flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Barcelona to Seattle right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Seattle from Barcelona. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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