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Cheap flights from Seattle to Barcelona from $248

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to Barcelona departing on 2/23. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Seattle to Barcelona

Cheap round-trip flights

Enter your travel dates to find the best prices.
Icelandair Logo
2:35 pm - 1:15 pm
SEA
-
BCN
13h 40m
1 stop
Icelandair Logo
11:50 am - 6:00 pm
BCN
-
SEA
14h 10m
1 stop
$387Icelandair
Sun, Feb 22 - Tue, Mar 10
Icelandair Logo
7:00 pm - 2:45 pm
SEA
-
BCN
34h 45m
1 stop
Icelandair Logo
3:45 pm - 8:40 pm
BCN
-
SEA
13h 55m
1 stop
$388Icelandair
Thu, Apr 23 - Mon, Apr 27
Icelandair Logo
3:40 pm - 2:45 pm
SEA
-
BCN
14h 05m
1 stop
Icelandair Logo
3:45 pm - 8:40 pm
BCN
-
SEA
13h 55m
1 stop
$389Icelandair
Sat, Apr 25 - Sun, May 10
Icelandair Logo
3:40 pm - 2:45 pm
SEA
-
BCN
14h 05m
1 stop
Icelandair Logo
3:45 pm - 8:40 pm
BCN
-
SEA
13h 55m
1 stop
$394Icelandair
Fri, Apr 24 - Wed, May 6
Icelandair Logo
3:40 pm - 2:45 pm
SEA
-
BCN
14h 05m
1 stop
Icelandair Logo
3:45 pm - 8:40 pm
BCN
-
SEA
13h 55m
1 stop
$395Icelandair
Fri, Apr 24 - Wed, May 6
Icelandair Logo
3:40 pm - 2:45 pm
SEA
-
BCN
14h 05m
1 stop
Icelandair Logo
3:45 pm - 8:40 pm
BCN
-
SEA
13h 55m
1 stop
$399Icelandair
Sun, Apr 26 - Mon, May 4
Icelandair Logo
7:00 pm - 2:45 pm
SEA
-
BCN
34h 45m
1 stop
Icelandair Logo
3:45 pm - 8:40 pm
BCN
-
SEA
13h 55m
1 stop
$400Icelandair
Mon, Apr 27 - Sat, May 2
Icelandair Logo
2:35 pm - 1:15 pm
SEA
-
BCN
13h 40m
1 stop
Icelandair Logo
11:50 am - 5:00 pm
BCN
-
SEA
14h 10m
1 stop
$414Icelandair
Sun, Feb 8 - Fri, Feb 13
Icelandair Logo
3:40 pm - 2:45 pm
SEA
-
BCN
14h 05m
1 stop
Icelandair Logo
3:45 pm - 8:40 pm
BCN
-
SEA
13h 55m
1 stop
$419Icelandair
Fri, Apr 24 - Sat, May 2
Icelandair Logo
3:40 pm - 2:45 pm
SEA
-
BCN
14h 05m
1 stop
Icelandair Logo
3:45 pm - 8:40 pm
BCN
-
SEA
13h 55m
1 stop
$421Icelandair
Sat, Apr 25 - Sat, May 2

United Airlines flights from Seattle to Barcelona

Our best United Airlines deals on Seattle to Barcelona flight tickets
United Airlines
Apr 15
SEA2:24 pmSeattle/Tacoma Intl
13h 51m
1 stop
BCN1:15 pmBarcelona-El Prat
Apr 23
BCN12:15 pmBarcelona-El Prat
37h 22m
2 stops
SEA4:37 pmSeattle/Tacoma Intl
$465
United Airlines
Apr 8
SEA5:00 amSeattle/Tacoma Intl
18h 00m
2 stops
BCN8:00 amBarcelona-El Prat
Apr 21
BCN12:15 pmBarcelona-El Prat
37h 22m
2 stops
SEA4:37 pmSeattle/Tacoma Intl
$468
United Airlines
Feb 24
SEA7:00 amSeattle/Tacoma Intl
16h 20m
2 stops
BCN8:20 amBarcelona-El Prat
Mar 3
BCN1:35 pmBarcelona-El Prat
38h 28m
2 stops
SEA7:03 pmSeattle/Tacoma Intl
$470

British Airways flights from Seattle to Barcelona

Our best British Airways deals on Seattle to Barcelona flight tickets
British Airways
Mar 3
SEA6:50 pmSeattle/Tacoma Intl
18h 40m
1 stop
BCN10:30 pmBarcelona-El Prat
Mar 11
BCN9:35 amBarcelona-El Prat
17h 54m
1 stop
SEA7:29 pmSeattle/Tacoma Intl
$469
British Airways
Apr 15
SEA7:00 amSeattle/Tacoma Intl
20h 05m
2 stops
BCN12:05 pmBarcelona-El Prat
Apr 23
BCN12:50 pmBarcelona-El Prat
17h 33m
1 stop
SEA9:23 pmSeattle/Tacoma Intl
$473
British Airways
Feb 24
SEA6:50 pmSeattle/Tacoma Intl
15h 55m
1 stop
BCN7:45 pmBarcelona-El Prat
Mar 3
BCN11:20 amBarcelona-El Prat
14h 35m
1 stop
SEA4:55 pmSeattle/Tacoma Intl
$475

momondo Fare Finder

 
Customize your flight search to find flights from Seattle to Barcelona 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 27, 2026.
Use the filters below to find and compare flights from Seattle to Barcelona that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Sun 2/22

2:35 pm-1:15 pm

1 stop13h 40m

Barcelona-El Prat

Tue 3/10

11:50 am-6:00 pm

1 stop14h 10m

$387

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Thu 4/23

7:00 pm-2:45 pm

1 stop34h 45m

Barcelona-El Prat

Mon 4/27

3:45 pm-8:40 pm

1 stop13h 55m

$388

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Sat 4/25

3:40 pm-2:45 pm

1 stop14h 05m

Barcelona-El Prat

Sun 5/10

3:45 pm-8:40 pm

1 stop13h 55m

$389

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Fri 4/24

3:40 pm-2:45 pm

1 stop14h 05m

Barcelona-El Prat

Wed 5/6

3:45 pm-8:40 pm

1 stop13h 55m

$394

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Fri 4/24

3:40 pm-2:45 pm

1 stop14h 05m

Barcelona-El Prat

Wed 5/6

3:45 pm-8:40 pm

1 stop13h 55m

$395

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Sun 4/26

3:40 pm-2:45 pm

1 stop14h 05m

Barcelona-El Prat

Mon 5/4

3:45 pm-8:40 pm

1 stop13h 55m

$399

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Mon 4/27

7:00 pm-2:45 pm

1 stop34h 45m

Barcelona-El Prat

Sat 5/2

3:45 pm-8:40 pm

1 stop13h 55m

$400

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Sun 2/8

2:35 pm-1:15 pm

1 stop13h 40m

Barcelona-El Prat

Fri 2/13

11:50 am-5:00 pm

1 stop14h 10m

$414

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Fri 4/24

3:40 pm-2:45 pm

1 stop14h 05m

Barcelona-El Prat

Sat 5/2

3:45 pm-8:40 pm

1 stop13h 55m

$419

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Sat 4/25

3:40 pm-2:45 pm

1 stop14h 05m

Barcelona-El Prat

Sat 5/2

3:45 pm-8:40 pm

1 stop13h 55m

$421

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 Barcelona from

How to get the cheapest flight ticket from Seattle to Barcelona

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 Barcelona?

The month of January is, on average, the cheapest month to fly to Barcelona from Seattle, with most prices found around $535. If you don’t want to visit Barcelona in January, then you should wait until February to fly from Seattle, when ticket prices are also cheap, with an average price of $579.

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

The cheapest day to depart from Seattle to Barcelona is on a Tuesday when prices can be found for as low as $1,258. On the other hand, Saturday is the most expensive day to depart from Seattle because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $1,759.

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

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

How far in advance should I book a flight to Barcelona?

You are more likely to see cheaper flights to Barcelona from Seattle when booking weeks ahead of your departure date. In general, you can expect to find flights to Barcelona for around $796 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Barcelona from Seattle for as low as $707 on momondo.

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

There is only 1 cabin class available to choose from on Seattle/Tacoma Intl to Barcelona flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Cheap Seattle to Barcelona flight deals and tips

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

Fastest flight time

10h 30m

Direct flights

Wed, Fri and Sun

Airports in Barcelona

3 airports
The fastest flight from Seattle to Barcelona takes 10h 30m
Direct flights go from Seattle to Barcelona on Wednesday, Friday and Sunday. There are no airlines offering direct flights.
There are 3 airports in Barcelona. From Seattle there are direct flights to Barcelona-El Prat (BCN).
Search flight deals

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

    A flight from Seattle/Tacoma Intl to Barcelona will travel around 5410.7 mi. A reasonable flight in good conditions will take 10h 30m.

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

    Prices for flights from Seattle/Tacoma Intl Airport to Barcelona are updated daily.

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

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

    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 Seattle/Tacoma Intl Airport to Barcelona.

  • What documentation or ID do you need to fly to Barcelona?

    The required travel and health documents for your Barcelona 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 Barcelona. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from Seattle to Barcelona

Compare and see reviews for airlines that fly from Seattle to Barcelona with momondo
Airline
Rating
Free Cancellation
Price
IcelandairPriceFrom $367Free CancellationRating
7.1
603 reviews
Search Icelandair flights
Scandinavian AirlinesPriceFrom $461Free CancellationRating
7.3
1,669 reviews
Search Scandinavian Airlines flights
Aer LingusPriceFrom $476Free CancellationRating
7.2
1,442 reviews
Search Aer Lingus flights
Air CanadaPriceFrom $478Free CancellationRating
7.1
10,660 reviews
Search Air Canada flights
United AirlinesPriceFrom $482Free CancellationRating
7.4
9,204 reviews
Search United Airlines flights
DeltaPriceFrom $486Free CancellationRating
7.9
8,118 reviews
Search Delta flights
American AirlinesPriceFrom $502Free CancellationRating
7.2
11,195 reviews
Search American Airlines flights
British AirwaysPriceFrom $503Free CancellationRating
6.7
7,702 reviews
Search British Airways flights
LufthansaPriceFrom $504Free CancellationRating
6.8
7,748 reviews
Search Lufthansa flights
IberiaPriceFrom $572Free CancellationRating
7.0
3,098 reviews
Search Iberia flights

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Barcelona from Seattle.

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

All flight searches from Seattle to Barcelona on momondo can be filtered to show those which offer flexible booking policies.

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

Once you have performed a search for Seattle to Barcelona 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 Seattle to Barcelona right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Seattle to Barcelona now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Barcelona and let you know when they change.

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Find better results for your trip to Spain

Fly into one of these airports located in Barcelona

Airports listed have a maximum distance of 46.7 mi from Barcelona
Barcelona-El Prat Airport
Girona Costa Brava Airport