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Cheap flights from Barcelona-El Prat Airport to Seattle from $392

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 8/28. 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
10:15 am - 4:00 pm
BCN
-
SEA
14h 45m
1 stop
Condor Logo
6:05 pm - 10:10 pm
SEA
-
BCN
19h 05m
1 stop
$580Condor
Fri, Sep 4 - Tue, Sep 29
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
$591Condor
Thu, Sep 17 - Wed, Sep 30
Condor Logo
10:25 am - 3:40 pm
BCN
-
SEA
14h 15m
1 stop
Condor Logo
6:05 pm - 10:10 pm
SEA
-
BCN
19h 05m
1 stop
$615Condor
Sun, Sep 6 - Tue, Sep 15
Condor Logo
10:25 am - 3:40 pm
BCN
-
SEA
14h 15m
1 stop
Condor Logo
6:05 pm - 10:10 pm
SEA
-
BCN
19h 05m
1 stop
$618Condor
Wed, Aug 26 - Tue, Sep 8
Condor Logo
8:00 am - 3:40 pm
BCN
-
SEA
16h 40m
1 stop
Condor Logo
6:05 pm - 10:10 pm
SEA
-
BCN
19h 05m
1 stop
$637Condor
Tue, Oct 6 - Tue, Oct 13
Condor Logo
10:15 am - 4:00 pm
BCN
-
SEA
14h 45m
1 stop
Condor Logo
5:40 pm - 10:10 pm
SEA
-
BCN
19h 30m
1 stop
$641Condor
Fri, Sep 4 - Sun, Sep 13
Condor Logo
8:00 am - 4:10 pm
BCN
-
SEA
17h 10m
1 stop
Condor Logo
6:05 pm - 10:10 pm
SEA
-
BCN
19h 05m
1 stop
$652Condor
Mon, Sep 21 - Tue, Oct 6
Multiple Airlines Logo
8:00 am - 11:12 pm
BCN
-
SEA
24h 12m
2 stops
Multiple Airlines Logo
6:05 pm - 10:10 pm
SEA
-
BCN
19h 05m
1 stop
$660Multiple Airlines
Mon, Sep 21 - Tue, Oct 6
Multiple Airlines Logo
8:00 am - 4:00 pm
BCN
-
SEA
17h 00m
1 stop
Multiple Airlines Logo
12:30 pm - 10:10 pm
SEA
-
BCN
24h 40m
2 stops
$672Multiple Airlines
Thu, Sep 3 - Thu, Sep 17
Condor Logo
10:25 am - 3:40 pm
BCN
-
SEA
14h 15m
1 stop
Condor Logo
6:10 pm - 10:10 pm
SEA
-
BCN
19h 00m
1 stop
$676Condor
Wed, Aug 26 - Mon, Sep 7

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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 4
BCN10:15 amBarcelona-El Prat
14h 45m
1 stop
SEA4:00 pmSeattle/Tacoma Intl
Sep 29
SEA6:05 pmSeattle/Tacoma Intl
19h 05m
1 stop
BCN10:10 pmBarcelona-El Prat
$580
Condor
Sep 17
BCN8:00 amBarcelona-El Prat
17h 00m
1 stop
SEA4:00 pmSeattle/Tacoma Intl
Sep 30
SEA5:40 pmSeattle/Tacoma Intl
19h 30m
1 stop
BCN10:10 pmBarcelona-El Prat
$591
Condor
Sep 6
BCN10:25 amBarcelona-El Prat
14h 15m
1 stop
SEA3:40 pmSeattle/Tacoma Intl
Sep 15
SEA6:05 pmSeattle/Tacoma Intl
19h 05m
1 stop
BCN10:10 pmBarcelona-El Prat
$615

KLM flights from Barcelona-El Prat Airport to Seattle

Our best KLM deals on Barcelona-El Prat Airport to Seattle flight tickets
KLM
Jun 26
BCN1:20 pmBarcelona-El Prat
11h 15m
SEA3:35 pmSeattle/Tacoma Intl
Jul 9
SEA3:35 pmSeattle/Tacoma Intl
10h 35m
BCN11:10 amBarcelona-El Prat
$1,015
KLM
Jun 29
BCN6:20 amBarcelona-El Prat
19h 04m
1 stop
SEA4:24 pmSeattle/Tacoma Intl
Jul 2
SEA3:35 pmSeattle/Tacoma Intl
10h 35m
BCN11:10 amBarcelona-El Prat
$1,760

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 16, 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

Fri 9/4

10:15 am-4:00 pm

1 stop14h 45m

Seattle/Tacoma Intl

Tue 9/29

6:05 pm-10:10 pm

1 stop19h 05m

$580

BarcelonaSeattle

BCN - SEA

BCNSEA

Barcelona-El Prat

Thu 9/17

8:00 am-4:00 pm

1 stop17h 00m

Seattle/Tacoma Intl

Wed 9/30

5:40 pm-10:10 pm

1 stop19h 30m

$591

BarcelonaSeattle

BCN - SEA

BCNSEA

Barcelona-El Prat

Sun 9/6

10:25 am-3:40 pm

1 stop14h 15m

Seattle/Tacoma Intl

Tue 9/15

6:05 pm-10:10 pm

1 stop19h 05m

$615

BarcelonaSeattle

BCN - SEA

BCNSEA

Barcelona-El Prat

Wed 8/26

10:25 am-3:40 pm

1 stop14h 15m

Seattle/Tacoma Intl

Tue 9/8

6:05 pm-10:10 pm

1 stop19h 05m

$618

BarcelonaSeattle

BCN - SEA

BCNSEA

Barcelona-El Prat

Tue 10/6

8:00 am-3:40 pm

1 stop16h 40m

Seattle/Tacoma Intl

Tue 10/13

6:05 pm-10:10 pm

1 stop19h 05m

$637

BarcelonaSeattle

BCN - SEA

BCNSEA

Barcelona-El Prat

Fri 9/4

10:15 am-4:00 pm

1 stop14h 45m

Seattle/Tacoma Intl

Sun 9/13

5:40 pm-10:10 pm

1 stop19h 30m

$641

BarcelonaSeattle

BCN - SEA

BCNSEA

Barcelona-El Prat

Mon 9/21

8:00 am-4:10 pm

1 stop17h 10m

Seattle/Tacoma Intl

Tue 10/6

6:05 pm-10:10 pm

1 stop19h 05m

$652

BarcelonaSeattle

BCN - SEA

BCNSEA

Barcelona-El Prat

Mon 9/21

8:00 am-11:12 pm

2 stops24h 12m

Seattle/Tacoma Intl

Tue 10/6

6:05 pm-10:10 pm

1 stop19h 05m

$660

BarcelonaSeattle

BCN - SEA

BCNSEA

Barcelona-El Prat

Thu 9/3

8:00 am-4:00 pm

1 stop17h 00m

Seattle/Tacoma Intl

Thu 9/17

12:30 pm-10:10 pm

2 stops24h 40m

$672
Quickest round-trip

BarcelonaSeattle

BCN - SEA

BCNSEA

Barcelona-El Prat

Wed 8/26

10:25 am-3:40 pm

1 stop14h 15m

Seattle/Tacoma Intl

Mon 9/7

6:10 pm-10:10 pm

1 stop19h 00m

$676

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 $873. 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 $1,024.

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 $895 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

$1,582

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 $1,582. 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
451 reviews
Search Condor flights
British AirwaysPriceFrom $662Free CancellationRating
6.7
8,054 reviews
Search British Airways flights
LufthansaPriceFrom $777Free CancellationRating
6.8
8,066 reviews
Search Lufthansa flights
DeltaPriceFrom $814Free CancellationRating
7.8
8,407 reviews
Search Delta 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
Redmond
Kent
Lakewood
Puyallup
Tukwila
Federal Way
Fife
Cle Elum
Marysville
Centralia
Shoreline
Kirkland
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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