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Cheap flights from Barcelona-El Prat Airport to Seattle from $342

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 8/26. 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.
Virgin Atlantic Logo
10:30 am - 10:12 pm
BCN
-
SEA
20h 42m
1 stop
Virgin Atlantic Logo
6:00 am - 11:20 am
SEA
-
BCN
20h 20m
1 stop
$403Virgin Atlantic
Thu, Dec 17 - Thu, Jan 14
Virgin Atlantic Logo
11:00 am - 10:05 pm
BCN
-
SEA
20h 05m
2 stops
Virgin Atlantic Logo
6:00 am - 8:35 am
SEA
-
BCN
17h 35m
2 stops
$418Virgin Atlantic
Thu, Sep 3 - Tue, Sep 15
Condor Logo
8:00 am - 4:00 pm
BCN
-
SEA
17h 00m
1 stop
Condor Logo
5:40 pm - 10:10 pm
SEA
-
BCN
19h 30m
1 stop
$442Condor
Thu, Oct 8 - Wed, Oct 14
Condor Logo
10:15 am - 4:00 pm
BCN
-
SEA
14h 45m
1 stop
Condor Logo
6:10 pm - 10:10 pm
SEA
-
BCN
19h 00m
1 stop
$489Condor
Thu, Sep 3 - Mon, Oct 12
Virgin Atlantic Logo
3:15 pm - 11:11 pm
BCN
-
SEA
16h 56m
1 stop
Virgin Atlantic Logo
11:13 pm - 8:35 am
SEA
-
BCN
24h 22m
1 stop
$526Virgin Atlantic
Mon, Aug 17 - Sat, Aug 29
Virgin Atlantic Logo
3:15 pm - 11:08 am
BCN
-
SEA
28h 53m
1 stop
Virgin Atlantic Logo
11:13 pm - 8:35 am
SEA
-
BCN
24h 22m
1 stop
$545Virgin Atlantic
Wed, Aug 19 - Sat, Aug 29
Condor Logo
10:15 am - 4:00 pm
BCN
-
SEA
14h 45m
1 stop
Condor Logo
6:00 pm - 10:10 pm
SEA
-
BCN
19h 10m
1 stop
$547Condor
Fri, Oct 9 - Sat, Oct 17
Virgin Atlantic Logo
3:15 pm - 11:11 pm
BCN
-
SEA
16h 56m
1 stop
Virgin Atlantic Logo
5:30 am - 8:35 am
SEA
-
BCN
42h 05m
2 stops
$557Virgin Atlantic
Wed, Aug 19 - Sat, Aug 29
Condor Logo
10:25 am - 3:40 pm
BCN
-
SEA
14h 15m
1 stop
Condor Logo
6:35 pm - 10:10 pm
SEA
-
BCN
19h 35m
1 stop
$560Condor
Wed, Oct 14 - Sat, Oct 24
Virgin Atlantic Logo
11:00 am - 10:05 pm
BCN
-
SEA
20h 05m
2 stops
Virgin Atlantic Logo
11:13 pm - 8:35 am
SEA
-
BCN
24h 22m
1 stop
$563Virgin Atlantic
Wed, Aug 19 - Sat, Aug 29

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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
Oct 8
BCN8:00 amBarcelona-El Prat
17h 00m
1 stop
SEA4:00 pmSeattle/Tacoma Intl
Oct 14
SEA5:40 pmSeattle/Tacoma Intl
19h 30m
1 stop
BCN10:10 pmBarcelona-El Prat
$442
Condor
Sep 3
BCN10:15 amBarcelona-El Prat
14h 45m
1 stop
SEA4:00 pmSeattle/Tacoma Intl
Oct 12
SEA6:10 pmSeattle/Tacoma Intl
19h 00m
1 stop
BCN10:10 pmBarcelona-El Prat
$489
Condor
Oct 9
BCN10:15 amBarcelona-El Prat
14h 45m
1 stop
SEA4:00 pmSeattle/Tacoma Intl
Oct 17
SEA6:00 pmSeattle/Tacoma Intl
19h 10m
1 stop
BCN10:10 pmBarcelona-El Prat
$547

KLM flights from Barcelona-El Prat Airport to Seattle

Our best KLM deals on Barcelona-El Prat Airport to Seattle flight tickets
KLM
Jul 12
BCN1:20 pmBarcelona-El Prat
11h 15m
SEA3:35 pmSeattle/Tacoma Intl
Jul 25
SEA3:35 pmSeattle/Tacoma Intl
10h 35m
BCN11:10 amBarcelona-El Prat
$939
KLM
Jul 10
BCN6:20 amBarcelona-El Prat
19h 18m
2 stops
SEA4:38 pmSeattle/Tacoma Intl
Jul 23
SEA1:45 pmSeattle/Tacoma Intl
13h 45m
1 stop
BCN12:30 pmBarcelona-El Prat
$1,066

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 June 29, 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 - SEA

BCNSEA

Barcelona-El Prat

Thu 12/17

10:30 am-10:12 pm

1 stop20h 42m

Seattle/Tacoma Intl

Thu 1/14

6:00 am-11:20 am

1 stop20h 20m

$403

BarcelonaSeattle

BCN - SEA

BCNSEA

Barcelona-El Prat

Thu 9/3

11:00 am-10:05 pm

2 stops20h 05m

Seattle/Tacoma Intl

Tue 9/15

6:00 am-8:35 am

2 stops17h 35m

$418

BarcelonaSeattle

BCN - SEA

BCNSEA

Barcelona-El Prat

Thu 10/8

8:00 am-4:00 pm

1 stop17h 00m

Seattle/Tacoma Intl

Wed 10/14

5:40 pm-10:10 pm

1 stop19h 30m

$442
Quickest round-trip

BarcelonaSeattle

BCN - SEA

BCNSEA

Barcelona-El Prat

Thu 9/3

10:15 am-4:00 pm

1 stop14h 45m

Seattle/Tacoma Intl

Mon 10/12

6:10 pm-10:10 pm

1 stop19h 00m

$489

BarcelonaSeattle

BCN - SEA

BCNSEA

Barcelona-El Prat

Mon 8/17

3:15 pm-11:11 pm

1 stop16h 56m

Seattle/Tacoma Intl

Sat 8/29

11:13 pm-8:35 am

1 stop24h 22m

$526

BarcelonaSeattle

BCN - SEA

BCNSEA

Barcelona-El Prat

Wed 8/19

3:15 pm-11:08 am

1 stop28h 53m

Seattle/Tacoma Intl

Sat 8/29

11:13 pm-8:35 am

1 stop24h 22m

$545

BarcelonaSeattle

BCN - SEA

BCNSEA

Barcelona-El Prat

Fri 10/9

10:15 am-4:00 pm

1 stop14h 45m

Seattle/Tacoma Intl

Sat 10/17

6:00 pm-10:10 pm

1 stop19h 10m

$547

BarcelonaSeattle

BCN - SEA

BCNSEA

Barcelona-El Prat

Wed 8/19

3:15 pm-11:11 pm

1 stop16h 56m

Seattle/Tacoma Intl

Sat 8/29

5:30 am-8:35 am

2 stops42h 05m

$557

BarcelonaSeattle

BCN - SEA

BCNSEA

Barcelona-El Prat

Wed 10/14

10:25 am-3:40 pm

1 stop14h 15m

Seattle/Tacoma Intl

Sat 10/24

6:35 pm-10:10 pm

1 stop19h 35m

$560

BarcelonaSeattle

BCN - SEA

BCNSEA

Barcelona-El Prat

Wed 8/19

11:00 am-10:05 pm

2 stops20h 05m

Seattle/Tacoma Intl

Sat 8/29

11:13 pm-8:35 am

1 stop24h 22m

$563

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, September 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 September, then you should wait until January to fly from Barcelona-El Prat Airport, when ticket prices are also cheap, with an average price of $803.

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 Wednesday. momondo users have found tickets for Wednesday departures for as low as $1,062. 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 $894 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 $732 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.

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

As of June 2026, prices for Barcelona-El Prat Airport to Seattle flights are approximately 31% 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

Best Price Found

$1,132

Fastest flight time

11h 15m

Direct flights

Mon, Thu and Sat

Airports in Seattle

1 airport
The best one-way flight to Seattle from Barcelona-El Prat Airport in the past 72 hours is $1,132. The best round-trip flight deal from Barcelona-El Prat Airport to Seattle found on momondo in the last 72 hours is $1,026.
The fastest flight from Barcelona-El Prat Airport to Seattle takes 11h 15m
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 15m.

  • 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
478 reviews
Search Condor flights
British AirwaysPriceFrom $662Free CancellationRating
6.7
8,088 reviews
Search British Airways flights
LufthansaPriceFrom $777Free CancellationRating
6.8
8,109 reviews
Search Lufthansa flights
DeltaPriceFrom $814Free CancellationRating
7.8
8,451 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 $844, with the best Delta deals starting from $814 round-trip. 8,451 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
Lynnwood
Redmond
Kent
Lakewood
Puyallup
Tukwila
Cle Elum
Federal Way
Fife
Marysville
Centralia
Kirkland
Shoreline
Westport

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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