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Cheap flights from Barcelona-El Prat Airport to Seattle from $358

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 1/15. 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
7:30 am - 5:00 pm
BCN
-
SEA
18h 30m2 stops
Multiple Airlines Logo
2:35 pm - 8:15 pm
SEA
-
BCN
20h 40m2 stops
$709Multiple Airlines
Wed, Jan 14 - Wed, Jan 21
Multiple Airlines Logo
7:30 am - 5:00 pm
BCN
-
SEA
18h 30m2 stops
Multiple Airlines Logo
2:35 pm - 5:40 pm
SEA
-
BCN
18h 05m2 stops
$711Multiple Airlines
Fri, Jan 30 - Fri, Feb 6
Icelandair Logo
11:50 am - 5:00 pm
BCN
-
SEA
14h 10m1 stop
Icelandair Logo
2:35 pm - 1:35 pm
SEA
-
BCN
14h 00m1 stop
$717Icelandair
Fri, Jan 16 - Fri, Jan 30
Icelandair Logo
11:50 am - 5:00 pm
BCN
-
SEA
14h 10m1 stop
Icelandair Logo
2:35 pm - 1:35 pm
SEA
-
BCN
14h 00m1 stop
$719Icelandair
Fri, Jan 16 - Fri, Jan 30
Icelandair Logo
11:50 am - 5:00 pm
BCN
-
SEA
14h 10m1 stop
Icelandair Logo
2:35 pm - 1:35 pm
SEA
-
BCN
14h 00m1 stop
$722Icelandair
Fri, Jan 16 - Fri, Jan 30
Multiple Airlines Logo
7:40 am - 5:00 pm
BCN
-
SEA
18h 20m2 stops
Multiple Airlines Logo
2:35 pm - 5:40 pm
SEA
-
BCN
18h 05m2 stops
$724Multiple Airlines
Fri, Jan 16 - Fri, Jan 30
Icelandair Logo
11:50 am - 5:00 pm
BCN
-
SEA
14h 10m1 stop
Icelandair Logo
2:35 pm - 1:35 pm
SEA
-
BCN
14h 00m1 stop
$725Icelandair
Fri, Jan 16 - Fri, Jan 23
Multiple Airlines Logo
1:20 pm - 2:19 pm
BCN
-
SEA
57h 59m2 stops
Multiple Airlines Logo
10:40 pm - 11:55 am
SEA
-
BCN
28h 15m1 stop
$743Multiple Airlines
Sun, Feb 1 - Sun, Feb 15
Multiple Airlines Logo
2:00 pm - 10:44 am
BCN
-
SEA
29h 44m1 stop
Multiple Airlines Logo
3:10 pm - 12:05 am
SEA
-
BCN
24h 55m2 stops
$746Multiple Airlines
Tue, Feb 24 - Sun, Mar 8
Multiple Airlines Logo
8:35 pm - 5:00 pm
BCN
-
SEA
29h 25m3 stops
Multiple Airlines Logo
2:35 pm - 12:05 am
SEA
-
BCN
24h 30m2 stops
$755Multiple Airlines
Wed, Jan 14 - Wed, Jan 21

Icelandair flights from Barcelona-El Prat Airport to Seattle

Our best Icelandair deals on Barcelona-El Prat Airport to Seattle flight tickets
Icelandair
Jan 16
BCN11:50 amBarcelona-El Prat
14h 10m
1 stop
SEA5:00 pmSeattle/Tacoma Intl
Jan 30
SEA2:35 pmSeattle/Tacoma Intl
14h 00m
1 stop
BCN1:35 pmBarcelona-El Prat
$717
Find similar
Icelandair
Jan 16
BCN11:50 amBarcelona-El Prat
14h 10m
1 stop
SEA5:00 pmSeattle/Tacoma Intl
Jan 30
SEA2:35 pmSeattle/Tacoma Intl
14h 00m
1 stop
BCN1:35 pmBarcelona-El Prat
$719
Find similar
Icelandair
Jan 16
BCN11:50 amBarcelona-El Prat
14h 10m
1 stop
SEA5:00 pmSeattle/Tacoma Intl
Jan 30
SEA2:35 pmSeattle/Tacoma Intl
14h 00m
1 stop
BCN1:35 pmBarcelona-El Prat
$722
Find similar

Delta flights from Barcelona-El Prat Airport to Seattle

Our best Delta deals on Barcelona-El Prat Airport to Seattle flight tickets
Delta
Feb 23
BCN6:00 amBarcelona-El Prat
14h 40m
1 stop
SEA11:40 amSeattle/Tacoma Intl
Mar 8
SEA11:30 pmSeattle/Tacoma Intl
24h 10m
1 stop
BCN7:40 amBarcelona-El Prat
$775
Find similar
Delta
Jan 22
BCN6:00 amBarcelona-El Prat
18h 00m
2 stops
SEA3:00 pmSeattle/Tacoma Intl
Jan 29
SEA7:40 amSeattle/Tacoma Intl
21h 20m
2 stops
BCN2:00 pmBarcelona-El Prat
$776
Find similar
Delta
Feb 23
BCN6:00 amBarcelona-El Prat
19h 56m
2 stops
SEA4:56 pmSeattle/Tacoma Intl
Mar 8
SEA9:55 pmSeattle/Tacoma Intl
25h 45m
1 stop
BCN7:40 amBarcelona-El Prat
$780
Find similar

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 December 18, 2025.
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

Wed 1/14

7:30 am-5:00 pm

2 stops18h 30m

Seattle/Tacoma Intl

Wed 1/21

2:35 pm-8:15 pm

2 stops20h 40m

$709

BarcelonaSeattle

BCN - SEA

BCNSEA

Barcelona-El Prat

Fri 1/30

7:30 am-5:00 pm

2 stops18h 30m

Seattle/Tacoma Intl

Fri 2/6

2:35 pm-5:40 pm

2 stops18h 05m

$711

BarcelonaSeattle

BCN - SEA

BCNSEA

Barcelona-El Prat

Fri 1/16

11:50 am-5:00 pm

1 stop14h 10m

Seattle/Tacoma Intl

Fri 1/30

2:35 pm-1:35 pm

1 stop14h 00m

$717

BarcelonaSeattle

BCN - SEA

BCNSEA

Barcelona-El Prat

Fri 1/16

11:50 am-5:00 pm

1 stop14h 10m

Seattle/Tacoma Intl

Fri 1/30

2:35 pm-1:35 pm

1 stop14h 00m

$719

BarcelonaSeattle

BCN - SEA

BCNSEA

Barcelona-El Prat

Fri 1/16

11:50 am-5:00 pm

1 stop14h 10m

Seattle/Tacoma Intl

Fri 1/30

2:35 pm-1:35 pm

1 stop14h 00m

$722

BarcelonaSeattle

BCN - SEA

BCNSEA

Barcelona-El Prat

Fri 1/16

7:40 am-5:00 pm

2 stops18h 20m

Seattle/Tacoma Intl

Fri 1/30

2:35 pm-5:40 pm

2 stops18h 05m

$724

BarcelonaSeattle

BCN - SEA

BCNSEA

Barcelona-El Prat

Fri 1/16

11:50 am-5:00 pm

1 stop14h 10m

Seattle/Tacoma Intl

Fri 1/23

2:35 pm-1:35 pm

1 stop14h 00m

$725

BarcelonaSeattle

BCN - SEA

BCNSEA

Barcelona-El Prat

Sun 2/1

1:20 pm-2:19 pm

2 stops57h 59m

Seattle/Tacoma Intl

Sun 2/15

10:40 pm-11:55 am

1 stop28h 15m

$743

BarcelonaSeattle

BCN - SEA

BCNSEA

Barcelona-El Prat

Tue 2/24

2:00 pm-10:44 am

1 stop29h 44m

Seattle/Tacoma Intl

Sun 3/8

3:10 pm-12:05 am

2 stops24h 55m

$746

BarcelonaSeattle

BCN - SEA

BCNSEA

Barcelona-El Prat

Wed 1/14

8:35 pm-5:00 pm

3 stops29h 25m

Seattle/Tacoma Intl

Wed 1/21

2:35 pm-12:05 am

2 stops24h 30m

$755

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 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 $708. 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 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 Tuesday. momondo users have found tickets for Tuesday departures for as low as $784. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Sunday 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 $1,377.

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

Flying to Seattle from Barcelona-El Prat Airport in the morning is the least expensive time of day to depart. momondo users have found prices as low as $877 when looking at flights departing in the morning. Flights to Seattle are more costly at noon, with an average ticket price of $1,226. Departure times at noon fall within the peak daily travel times, which is why tickets can be more expensive.

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 $853 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 $776 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 December 2025, prices for Barcelona-El Prat Airport to Seattle flights are approximately 15% more expensive 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

13h 45m

Direct flights

Mon, Thu and Sat

Airports in Seattle

1 airport
The fastest flight from Barcelona-El Prat Airport to Seattle takes 13h 45m
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

  • 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 13h 45m.

  • 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
1,430 reviews
Search KLM flights
DeltaPriceFrom $706Free CancellationRating
7.9
8,006 reviews
Search Delta flights
LufthansaPriceFrom $712Free CancellationRating
6.8
7,634 reviews
Search Lufthansa flights
British AirwaysPriceFrom $768Free CancellationRating
6.7
7,583 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
Cle Elum
Federal Way
Lakewood
Fife
Centralia
Westport
Kirkland
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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