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Cheap flights from Seattle to Barcelona from $241

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 1/11. 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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Cheap round-trip flights

Enter your travel dates to find the best prices.
Lufthansa Logo
2:00 pm - 1:05 pmSEA-BCN
14h 05m1 stop
Lufthansa Logo
11:55 am - 1:20 pmBCN-SEA
34h 25m1 stop
$575Lufthansa
Find Deal
Thu, Jan 8 - Tue, Jan 20
Lufthansa Logo
2:00 pm - 4:20 pmSEA-BCN
17h 20m1 stop
Lufthansa Logo
6:50 am - 8:57 pmBCN-SEA
23h 07m2 stops
$576Lufthansa
Find Deal
Thu, Jan 8 - Tue, Jan 13
Scandinavian Airlines Logo
11:35 am - 6:20 pmSEA-BCN
21h 45m2 stops
Scandinavian Airlines Logo
7:10 pm - 9:48 pmBCN-SEA
34h 38m2 stops
$577Scandinavian Airlines
Find Deal
Mon, Mar 2 - Mon, Mar 16
Aer Lingus Logo
6:45 pm - 10:25 pmSEA-BCN
18h 40m1 stop
Aer Lingus Logo
11:00 am - 4:59 pmBCN-SEA
14h 59m1 stop
$579Aer Lingus
Find Deal
Tue, Apr 21 - Wed, Apr 29
British Airways Logo
6:50 pm - 6:25 pmSEA-BCN
14h 35m1 stop
British Airways Logo
6:40 am - 11:30 amBCN-SEA
13h 50m1 stop
$582British Airways
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Thu, Jan 8 - Sat, Jan 24
Delta Logo
7:10 am - 11:10 amSEA-BCN
19h 00m2 stops
Delta Logo
6:00 am - 11:50 amBCN-SEA
14h 50m1 stop
$583Delta
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Wed, Jan 7 - Thu, Jan 22
Lufthansa Logo
3:10 pm - 2:45 pmSEA-BCN
14h 35m1 stop
Lufthansa Logo
6:50 am - 12:10 pmBCN-SEA
14h 20m1 stop
$584Lufthansa
Find Deal
Wed, Jan 7 - Mon, Jan 19
Multiple Airlines Logo
5:50 am - 9:00 pmSEA-BCN
30h 10m3 stops
Multiple Airlines Logo
6:10 am - 10:16 pmBCN-SEA
25h 06m3 stops
$585Multiple Airlines
Find Deal
Fri, Jan 16 - Thu, Jan 22
Aer Lingus Logo
6:45 pm - 10:25 pmSEA-BCN
18h 40m1 stop
Aer Lingus Logo
11:00 am - 4:59 pmBCN-SEA
14h 59m1 stop
$592Aer Lingus
Find Deal
Wed, Apr 15 - Wed, Apr 22
Multiple Airlines Logo
2:00 pm - 1:05 pmSEA-BCN
14h 05m1 stop
Multiple Airlines Logo
9:55 am - 9:12 pmBCN-SEA
20h 17m2 stops
$594Multiple Airlines
Find Deal
Thu, Jan 8 - Wed, Jan 21

Aer Lingus flights from Seattle to Barcelona

Our best Aer Lingus deals on Seattle to Barcelona flight tickets
Aer Lingus
Apr 15
SEA6:45 pmSeattle/Tacoma Intl
18h 40m
1 stop
BCN10:25 pmBarcelona-El Prat
Apr 23
BCN11:00 amBarcelona-El Prat
14h 59m
1 stop
SEA4:59 pmSeattle/Tacoma Intl
$592
Find similar
Aer Lingus
Apr 28
SEA6:45 pmSeattle/Tacoma Intl
18h 40m
1 stop
BCN10:25 pmBarcelona-El Prat
May 12
BCN11:00 amBarcelona-El Prat
14h 59m
1 stop
SEA4:59 pmSeattle/Tacoma Intl
$609
Find similar
Aer Lingus
Dec 10
SEA8:05 pmSeattle/Tacoma Intl
15h 20m
1 stop
BCN8:25 pmBarcelona-El Prat
Dec 17
BCN11:30 amBarcelona-El Prat
15h 50m
1 stop
SEA6:20 pmSeattle/Tacoma Intl
$672
Find similar

Scandinavian Airlines flights from Seattle to Barcelona

Our best Scandinavian Airlines deals on Seattle to Barcelona flight tickets
Scandinavian Airlines
Mar 17
SEA7:20 amSeattle/Tacoma Intl
26h 45m
2 stops
BCN6:05 pmBarcelona-El Prat
Mar 31
BCN7:00 pmBarcelona-El Prat
36h 05m
2 stops
SEA10:05 pmSeattle/Tacoma Intl
$602
Find similar
Scandinavian Airlines
Apr 30
SEA7:20 amSeattle/Tacoma Intl
25h 50m
2 stops
BCN6:10 pmBarcelona-El Prat
May 25
BCN7:00 pmBarcelona-El Prat
38h 22m
2 stops
SEA12:22 amSeattle/Tacoma Intl
$619
Find similar
Scandinavian Airlines
Apr 24
SEA11:10 amSeattle/Tacoma Intl
36h 45m
2 stops
BCN8:55 amBarcelona-El Prat
May 6
BCN7:00 pmBarcelona-El Prat
38h 22m
2 stops
SEA12:22 amSeattle/Tacoma Intl
$631
Find similar

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 November 25, 2025.
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

Thu 1/8

2:00 pm-1:05 pm

1 stop14h 05m

Barcelona-El Prat

Tue 1/20

11:55 am-1:20 pm

1 stop34h 25m

$575

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Thu 1/8

2:00 pm-4:20 pm

1 stop17h 20m

Barcelona-El Prat

Tue 1/13

6:50 am-8:57 pm

2 stops23h 07m

$576

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Mon 3/2

11:35 am-6:20 pm

2 stops21h 45m

Barcelona-El Prat

Mon 3/16

7:10 pm-9:48 pm

2 stops34h 38m

$577

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Tue 4/21

6:45 pm-10:25 pm

1 stop18h 40m

Barcelona-El Prat

Wed 4/29

11:00 am-4:59 pm

1 stop14h 59m

$579

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Thu 1/8

6:50 pm-6:25 pm

1 stop14h 35m

Barcelona-El Prat

Sat 1/24

6:40 am-11:30 am

1 stop13h 50m

$582

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Wed 1/7

7:10 am-11:10 am

2 stops19h 00m

Barcelona-El Prat

Thu 1/22

6:00 am-11:50 am

1 stop14h 50m

$583

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Wed 1/7

3:10 pm-2:45 pm

1 stop14h 35m

Barcelona-El Prat

Mon 1/19

6:50 am-12:10 pm

1 stop14h 20m

$584

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Fri 1/16

5:50 am-9:00 pm

3 stops30h 10m

Barcelona-El Prat

Thu 1/22

6:10 am-10:16 pm

3 stops25h 06m

$585

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Wed 4/15

6:45 pm-10:25 pm

1 stop18h 40m

Barcelona-El Prat

Wed 4/22

11:00 am-4:59 pm

1 stop14h 59m

$592

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Thu 1/8

2:00 pm-1:05 pm

1 stop14h 05m

Barcelona-El Prat

Wed 1/21

9:55 am-9:12 pm

2 stops20h 17m

$594

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 February is, on average, the cheapest month to fly to Barcelona from Seattle, with most prices found around $671. If you don’t want to visit Barcelona in February, then you should wait until October to fly from Seattle, when ticket prices are also cheap, with an average price of $672.

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

The cheapest day to depart from Seattle to Barcelona is on a Sunday when prices can be found for as low as $876. On the other hand, Tuesday 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 $2,579.

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

In the evening is the cheapest time of day to fly from Seattle to Barcelona when you can find flight prices for as low as $888. Flying to Barcelona in the evening is an ideal time because this is during off-peak travel hours. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are $2,198 on average. Flights to Barcelona from Seattle in the afternoon are generally more expensive because this time of day is more convenient for travelers’ schedules.

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 $847 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 $719 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

1 airport
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 is 1 airport near Barcelona: 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 13h 15m.

  • 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 $382Free CancellationRating
7.0
581 reviews
Search Icelandair flights
Scandinavian AirlinesPriceFrom $465Free CancellationRating
7.4
1,589 reviews
Search Scandinavian Airlines flights
Air CanadaPriceFrom $478Free CancellationRating
7.1
10,476 reviews
Search Air Canada flights
United AirlinesPriceFrom $485Free CancellationRating
7.4
9,046 reviews
Search United Airlines flights
Aer LingusPriceFrom $498Free CancellationRating
7.2
1,381 reviews
Search Aer Lingus flights
British AirwaysPriceFrom $551Free CancellationRating
6.7
7,539 reviews
Search British Airways flights
LufthansaPriceFrom $561Free CancellationRating
6.8
7,594 reviews
Search Lufthansa flights
IberiaPriceFrom $572Free CancellationRating
7.0
3,034 reviews
Search Iberia flights
KLMPriceFrom $574Free CancellationRating
7.7
1,422 reviews
Search KLM flights
American AirlinesPriceFrom $590Free CancellationRating
7.2
11,038 reviews
Search American Airlines 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