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Cheap flights from Barcelona-El Prat Airport to Seattle from $268

This is the cheapest one-way 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 2/3. 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
0 bags

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

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
5:45 am - 5:00 pm
BCN
-
SEA
20h 15m2 stops
Multiple Airlines Logo
2:35 pm - 4:50 pm
SEA
-
BCN
17h 15m2 stops
$553Multiple Airlines
Tue, Feb 3 - Tue, Feb 10
Multiple Airlines Logo
6:10 pm - 10:33 am
BCN
-
SEA
25h 23m1 stop
Multiple Airlines Logo
8:15 am - 11:55 am
SEA
-
BCN
19h 40m1 stop
$565Multiple Airlines
Thu, Feb 26 - Tue, Mar 10
Condor Logo
10:55 am - 3:40 pm
BCN
-
SEA
13h 45m1 stop
Condor Logo
5:40 pm - 10:10 pm
SEA
-
BCN
19h 30m1 stop
$566Condor
Fri, May 8 - Sun, May 17
Multiple Airlines Logo
5:45 am - 5:00 pm
BCN
-
SEA
20h 15m2 stops
Multiple Airlines Logo
2:35 pm - 7:50 pm
SEA
-
BCN
20h 15m3 stops
$614Multiple Airlines
Tue, Feb 3 - Tue, Feb 10
Multiple Airlines Logo
2:00 pm - 11:25 am
BCN
-
SEA
30h 25m1 stop
Multiple Airlines Logo
10:22 am - 4:50 pm
SEA
-
BCN
22h 28m2 stops
$616Multiple Airlines
Thu, Feb 26 - Tue, Mar 10
Multiple Airlines Logo
2:00 pm - 11:25 am
BCN
-
SEA
30h 25m1 stop
Multiple Airlines Logo
3:35 pm - 9:00 pm
SEA
-
BCN
21h 25m2 stops
$632Multiple Airlines
Thu, Feb 26 - Wed, Mar 11
Condor Logo
8:00 am - 3:40 pm
BCN
-
SEA
16h 40m1 stop
Condor Logo
5:40 pm - 10:10 pm
SEA
-
BCN
19h 30m1 stop
$633Condor
Thu, Jun 4 - Mon, Jun 22
Condor Logo
10:55 am - 3:40 pm
BCN
-
SEA
13h 45m1 stop
Condor Logo
5:40 pm - 4:00 pm
SEA
-
BCN
13h 20m1 stop
$640Condor
Fri, Jun 5 - Tue, Jun 23
American Airlines Logo
10:40 am - 7:18 pm
BCN
-
SEA
17h 38m1 stop
American Airlines Logo
7:35 am - 8:50 am
SEA
-
BCN
16h 15m1 stop
$644American Airlines
Thu, Jan 22 - Wed, Feb 4
American Airlines Logo
10:40 am - 9:47 pm
BCN
-
SEA
20h 07m1 stop
American Airlines Logo
6:00 am - 8:50 am
SEA
-
BCN
17h 50m1 stop
$654American Airlines
Wed, Feb 4 - Wed, Feb 11

American Airlines flights from Barcelona-El Prat Airport to Seattle

Our best American Airlines deals on Barcelona-El Prat Airport to Seattle flight tickets
American Airlines
Jan 22
BCN10:40 amBarcelona-El Prat
17h 38m
1 stop
SEA7:18 pmSeattle/Tacoma Intl
Feb 4
SEA7:35 amSeattle/Tacoma Intl
16h 15m
1 stop
BCN8:50 amBarcelona-El Prat
$644
American Airlines
Jan 15
BCN12:30 pmBarcelona-El Prat
18h 37m
1 stop
SEA10:07 pmSeattle/Tacoma Intl
Jan 28
SEA7:35 amSeattle/Tacoma Intl
16h 15m
1 stop
BCN8:50 amBarcelona-El Prat
$645
American Airlines
Feb 4
BCN10:40 amBarcelona-El Prat
20h 07m
1 stop
SEA9:47 pmSeattle/Tacoma Intl
Feb 11
SEA6:00 amSeattle/Tacoma Intl
17h 50m
1 stop
BCN8:50 amBarcelona-El Prat
$654

United Airlines flights from Barcelona-El Prat Airport to Seattle

Our best United Airlines deals on Barcelona-El Prat Airport to Seattle flight tickets
United Airlines
Feb 26
BCN6:50 amBarcelona-El Prat
14h 20m
1 stop
SEA12:10 pmSeattle/Tacoma Intl
Mar 4
SEA5:00 amSeattle/Tacoma Intl
19h 00m
2 stops
BCN9:00 amBarcelona-El Prat
$763
United Airlines
Feb 26
BCN6:50 amBarcelona-El Prat
14h 20m
1 stop
SEA12:10 pmSeattle/Tacoma Intl
Mar 11
SEA8:59 amSeattle/Tacoma Intl
23h 21m
3 stops
BCN4:20 pmBarcelona-El Prat
$768
United Airlines
Feb 25
BCN6:50 amBarcelona-El Prat
24h 23m
2 stops
SEA10:13 pmSeattle/Tacoma Intl
Mar 4
SEA5:00 amSeattle/Tacoma Intl
19h 00m
2 stops
BCN9:00 amBarcelona-El Prat
$769

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 January 8, 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

BarcelonaSeattle

BCN - SEA

BCNSEA

Barcelona-El Prat

Tue 2/3

5:45 am-5:00 pm

2 stops20h 15m

Seattle/Tacoma Intl

Tue 2/10

2:35 pm-4:50 pm

2 stops17h 15m

$553

BarcelonaSeattle

BCN - SEA

BCNSEA

Barcelona-El Prat

Thu 2/26

6:10 pm-10:33 am

1 stop25h 23m

Seattle/Tacoma Intl

Tue 3/10

8:15 am-11:55 am

1 stop19h 40m

$565

BarcelonaSeattle

BCN - SEA

BCNSEA

Barcelona-El Prat

Fri 5/8

10:55 am-3:40 pm

1 stop13h 45m

Seattle/Tacoma Intl

Sun 5/17

5:40 pm-10:10 pm

1 stop19h 30m

$566

BarcelonaSeattle

BCN - SEA

BCNSEA

Barcelona-El Prat

Tue 2/3

5:45 am-5:00 pm

2 stops20h 15m

Seattle/Tacoma Intl

Tue 2/10

2:35 pm-7:50 pm

3 stops20h 15m

$614

BarcelonaSeattle

BCN - SEA

BCNSEA

Barcelona-El Prat

Thu 2/26

2:00 pm-11:25 am

1 stop30h 25m

Seattle/Tacoma Intl

Tue 3/10

10:22 am-4:50 pm

2 stops22h 28m

$616

BarcelonaSeattle

BCN - SEA

BCNSEA

Barcelona-El Prat

Thu 2/26

2:00 pm-11:25 am

1 stop30h 25m

Seattle/Tacoma Intl

Wed 3/11

3:35 pm-9:00 pm

2 stops21h 25m

$632

BarcelonaSeattle

BCN - SEA

BCNSEA

Barcelona-El Prat

Thu 6/4

8:00 am-3:40 pm

1 stop16h 40m

Seattle/Tacoma Intl

Mon 6/22

5:40 pm-10:10 pm

1 stop19h 30m

$633

BarcelonaSeattle

BCN - SEA

BCNSEA

Barcelona-El Prat

Fri 6/5

10:55 am-3:40 pm

1 stop13h 45m

Seattle/Tacoma Intl

Tue 6/23

5:40 pm-4:00 pm

1 stop13h 20m

$640

BarcelonaSeattle

BCN - SEA

BCNSEA

Barcelona-El Prat

Thu 1/22

10:40 am-7:18 pm

1 stop17h 38m

Seattle/Tacoma Intl

Wed 2/4

7:35 am-8:50 am

1 stop16h 15m

$644

BarcelonaSeattle

BCN - SEA

BCNSEA

Barcelona-El Prat

Wed 2/4

10:40 am-9:47 pm

1 stop20h 07m

Seattle/Tacoma Intl

Wed 2/11

6:00 am-8:50 am

1 stop17h 50m

$654

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?

What is the cheapest month to fly to Seattle?

In general, March 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 $682. If you don’t want to visit Seattle in March, then you should wait until May to fly from Barcelona-El Prat Airport, when ticket prices are also cheap, with an average price of $729.

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 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 $849 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 $755 on momondo.

What cabin class options are available on Barcelona-El Prat to Seattle/Tacoma Intl flights?

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

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

As of January 2026, prices for Barcelona-El Prat Airport to Seattle flights are approximately 18% 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 19m

Direct flights

Mon, Thu and Sat

Airports in Seattle

1 airport
The fastest flight from Barcelona-El Prat Airport to Seattle takes 11h 19m
Direct flights go from Barcelona-El Prat Airport to Seattle on Monday, Thursday and Saturday. The only airline offering direct flights is Delta.
There is 1 airport in Seattle. From Barcelona-El Prat Airport there are direct flights to Seattle/Tacoma Intl (SEA).
Search flight deals

  • 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 19m.

  • 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
KLMPriceFrom $677Free CancellationRating
7.7
1,434 reviews
Search KLM flights
LufthansaPriceFrom $712Free CancellationRating
6.8
7,697 reviews
Search Lufthansa flights
DeltaPriceFrom $753Free CancellationRating
7.9
8,031 reviews
Search Delta flights
British AirwaysPriceFrom $768Free CancellationRating
6.7
7,659 reviews
Search British Airways flights

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
Lynnwood
Kent
Marysville
Puyallup
Redmond
Tukwila
Federal Way
Cle Elum
Lakewood
Fife
Westport
Kirkland
Centralia
Shoreline

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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