Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Seattle to Barcelona from $271

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 2/6. 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

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

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 - 1:35 pm
SEA
-
BCN
14h 00m1 stop
Icelandair Logo
11:50 am - 5:00 pm
BCN
-
SEA
14h 10m1 stop
$384Icelandair
Fri, Jan 23 - Fri, Feb 6
Icelandair Logo
2:35 pm - 1:35 pm
SEA
-
BCN
14h 00m1 stop
Icelandair Logo
11:50 am - 5:00 pm
BCN
-
SEA
14h 10m1 stop
$386Icelandair
Fri, Jan 23 - Fri, Feb 6
Icelandair Logo
2:35 pm - 1:35 pm
SEA
-
BCN
14h 00m1 stop
Icelandair Logo
11:50 am - 5:00 pm
BCN
-
SEA
14h 10m1 stop
$387Icelandair
Fri, Jan 23 - Fri, Feb 6
Icelandair Logo
2:35 pm - 1:15 pm
SEA
-
BCN
13h 40m1 stop
Icelandair Logo
11:50 am - 5:00 pm
BCN
-
SEA
14h 10m1 stop
$391Icelandair
Wed, Feb 4 - Fri, Feb 13
Icelandair Logo
2:35 pm - 1:15 pm
SEA
-
BCN
13h 40m1 stop
Icelandair Logo
11:50 am - 5:00 pm
BCN
-
SEA
14h 10m1 stop
$414Icelandair
Wed, Jan 21 - Fri, Jan 30
Icelandair Logo
2:35 pm - 1:15 pm
SEA
-
BCN
13h 40m1 stop
Icelandair Logo
11:50 am - 5:00 pm
BCN
-
SEA
14h 10m1 stop
$425Icelandair
Sun, Jan 25 - Sun, Feb 1
Multiple Airlines Logo
10:58 am - 2:15 pm
SEA
-
BCN
18h 17m2 stops
Multiple Airlines Logo
7:40 am - 1:20 pm
BCN
-
SEA
14h 40m1 stop
$439Multiple Airlines
Wed, Feb 4 - Wed, Feb 11
Lufthansa Logo
3:10 pm - 5:35 pm
SEA
-
BCN
17h 25m1 stop
Lufthansa Logo
5:50 am - 12:10 pm
BCN
-
SEA
15h 20m1 stop
$441Lufthansa
Sun, Feb 8 - Mon, Feb 16
Lufthansa Logo
3:10 pm - 2:45 pm
SEA
-
BCN
14h 35m1 stop
Lufthansa Logo
10:30 am - 8:56 pm
BCN
-
SEA
19h 26m1 stop
$442Lufthansa
Sun, Feb 15 - Mon, Feb 23
Lufthansa Logo
3:10 pm - 2:45 pm
SEA
-
BCN
14h 35m1 stop
Lufthansa Logo
10:30 am - 8:56 pm
BCN
-
SEA
19h 26m1 stop
$443Lufthansa
Fri, Feb 20 - Fri, Feb 27

Icelandair flights from Seattle to Barcelona-El Prat Airport

Our best Icelandair deals on Seattle to Barcelona-El Prat Airport flight tickets
Icelandair
Jan 23
SEA2:35 pmSeattle/Tacoma Intl
14h 00m
1 stop
BCN1:35 pmBarcelona-El Prat
Feb 6
BCN11:50 amBarcelona-El Prat
14h 10m
1 stop
SEA5:00 pmSeattle/Tacoma Intl
$384
Find similar
Icelandair
Jan 21
SEA2:35 pmSeattle/Tacoma Intl
13h 40m
1 stop
BCN1:15 pmBarcelona-El Prat
Jan 27
BCN11:50 amBarcelona-El Prat
14h 10m
1 stop
SEA5:00 pmSeattle/Tacoma Intl
$386
Find similar
Icelandair
Jan 23
SEA2:35 pmSeattle/Tacoma Intl
14h 00m
1 stop
BCN1:35 pmBarcelona-El Prat
Jan 30
BCN11:50 amBarcelona-El Prat
14h 10m
1 stop
SEA5:00 pmSeattle/Tacoma Intl
$387
Find similar

United Airlines flights from Seattle to Barcelona-El Prat Airport

Our best United Airlines deals on Seattle to Barcelona-El Prat Airport flight tickets
United Airlines
Feb 3
SEA7:00 amSeattle/Tacoma Intl
17h 00m
1 stop
BCN9:00 amBarcelona-El Prat
Feb 10
BCN1:35 pmBarcelona-El Prat
40h 37m
3 stops
SEA9:12 pmSeattle/Tacoma Intl
$465
Find similar
United Airlines
Feb 8
SEA11:45 pmSeattle/Tacoma Intl
24h 50m
2 stops
BCN9:35 amBarcelona-El Prat
Feb 16
BCN1:35 pmBarcelona-El Prat
38h 28m
2 stops
SEA7:03 pmSeattle/Tacoma Intl
$468
Find similar
United Airlines
Feb 19
SEA11:59 pmSeattle/Tacoma Intl
24h 36m
2 stops
BCN9:35 amBarcelona-El Prat
Feb 26
BCN1:35 pmBarcelona-El Prat
38h 28m
2 stops
SEA7:03 pmSeattle/Tacoma Intl
$469
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Seattle to Barcelona-El Prat Airport 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 7, 2026.
Use the filters below to find and compare flights from Seattle to Barcelona-El Prat Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Fri 1/23

2:35 pm-1:35 pm

1 stop14h 00m

Barcelona-El Prat

Fri 2/6

11:50 am-5:00 pm

1 stop14h 10m

$384

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Fri 1/23

2:35 pm-1:35 pm

1 stop14h 00m

Barcelona-El Prat

Fri 2/6

11:50 am-5:00 pm

1 stop14h 10m

$386

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Fri 1/23

2:35 pm-1:35 pm

1 stop14h 00m

Barcelona-El Prat

Fri 2/6

11:50 am-5:00 pm

1 stop14h 10m

$387

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Wed 2/4

2:35 pm-1:15 pm

1 stop13h 40m

Barcelona-El Prat

Fri 2/13

11:50 am-5:00 pm

1 stop14h 10m

$391

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Wed 1/21

2:35 pm-1:15 pm

1 stop13h 40m

Barcelona-El Prat

Fri 1/30

11:50 am-5:00 pm

1 stop14h 10m

$414

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Sun 1/25

2:35 pm-1:15 pm

1 stop13h 40m

Barcelona-El Prat

Sun 2/1

11:50 am-5:00 pm

1 stop14h 10m

$425

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Wed 2/4

10:58 am-2:15 pm

2 stops18h 17m

Barcelona-El Prat

Wed 2/11

7:40 am-1:20 pm

1 stop14h 40m

$439

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Sun 2/8

3:10 pm-5:35 pm

1 stop17h 25m

Barcelona-El Prat

Mon 2/16

5:50 am-12:10 pm

1 stop15h 20m

$441

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Sun 2/15

3:10 pm-2:45 pm

1 stop14h 35m

Barcelona-El Prat

Mon 2/23

10:30 am-8:56 pm

1 stop19h 26m

$442

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Fri 2/20

3:10 pm-2:45 pm

1 stop14h 35m

Barcelona-El Prat

Fri 2/27

10:30 am-8:56 pm

1 stop19h 26m

$443

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to Barcelona from

How to get the cheapest flight ticket from Seattle to Barcelona-El Prat Airport

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-El Prat Airport?

The cheapest month to fly to Barcelona-El Prat Airport from Seattle is in January. Flight prices, which tend to average around $508, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of January, then book flights to Barcelona-El Prat Airport from Seattle during February instead. Flights to Barcelona-El Prat Airport in February, while not as cheap as those in January, still average around $563.

What is the cheapest day to depart on your flight to Barcelona-El Prat Airport?

The cheapest day to depart on your flight to Barcelona-El Prat Airport is on a Thursday when prices can be found for as low as $1,924. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Tuesday because tickets tend to average around $2,198. These prices are subject to change though, so be sure to set up a Price Alert for flights to Barcelona-El Prat Airport.

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

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

How far in advance should I book a flight to Barcelona-El Prat Airport?

You are more likely to see cheaper flights to Barcelona-El Prat Airport from Seattle when booking weeks ahead of your departure date. In general, you can expect to find flights to Barcelona-El Prat Airport 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-El Prat Airport from Seattle for as low as $705 on momondo.

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

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

Can stopping save me money on Seattle to Barcelona-El Prat Airport flights?

You could potentially save up to 21% on your flight if you consider stops on a Seattle to Barcelona-El Prat Airport flight.

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

As of January 2026, prices for Seattle to Barcelona-El Prat Airport flights are approximately 18% cheaper when compared to flights at the same time last year.

When to book flights from Seattle to Barcelona-El Prat Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Seattle to Barcelona-El Prat Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Seattle to Barcelona-El Prat Airport (SEA to BCN) flight deals and tips

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

Best Price Found

$1,113

Fastest flight time

10h 30m

Direct flights

Wed, Fri and Sun
The best flight deal from Seattle to Barcelona-El Prat Airport found on momondo in the last 72 hours is $1,113
The fastest flight from Seattle to Barcelona-El Prat Airport takes 10h 30m
Direct flights go from Seattle to Barcelona-El Prat Airport on Wednesday, Friday and Sunday. There are no airlines offering direct flights.
Search flight deals

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

    There are 5412.9 mi between Seattle/Tacoma Intl and Barcelona-El Prat. 10h 30m is a normal flight duration for this route.

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

    Prices for flights from Seattle/Tacoma Intl Airport to Barcelona-El Prat Airport are refreshed on a daily basis.

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

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

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to Barcelona-El Prat Airport.

  • What documentation or ID do you need to fly to Barcelona-El Prat Airport?

    The travel and health documents required for your trip to Barcelona-El Prat Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Barcelona-El Prat Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular plane model from Seattle to Barcelona-El Prat Airport?

  • What is the most popular airline from Seattle to Barcelona-El Prat Airport?

Best airlines flying from Seattle to Barcelona-El Prat Airport

Compare and see reviews for airlines that fly from Seattle to Barcelona-El Prat Airport with momondo
Airline
Rating
Free Cancellation
Price
IcelandairPriceFrom $368Free CancellationRating
7.1
593 reviews
Search Icelandair flights
Scandinavian AirlinesPriceFrom $461Free CancellationRating
7.3
1,635 reviews
Search Scandinavian Airlines flights
Air CanadaPriceFrom $478Free CancellationRating
7.1
10,603 reviews
Search Air Canada flights
United AirlinesPriceFrom $483Free CancellationRating
7.4
9,139 reviews
Search United Airlines flights
DeltaPriceFrom $487Free CancellationRating
7.9
8,025 reviews
Search Delta flights
Aer LingusPriceFrom $488Free CancellationRating
7.2
1,427 reviews
Search Aer Lingus flights
American AirlinesPriceFrom $502Free CancellationRating
7.2
11,095 reviews
Search American Airlines flights
British AirwaysPriceFrom $507Free CancellationRating
6.7
7,657 reviews
Search British Airways flights
LufthansaPriceFrom $530Free CancellationRating
6.8
7,692 reviews
Search Lufthansa flights
IberiaPriceFrom $572Free CancellationRating
7.0
3,076 reviews
Search Iberia flights

Traveling to a place near Barcelona?

Book flights to Barcelona if you plan to visit one of these locations
Lloret de Mar
Sitges
Salou
Tossa de Mar
Castelldefels
El Prat de Llobregat
Tarragona
L'Hospitalet de Llobregat
Santa Susanna
Cambrils
Cadaques
Calella
Empuriabrava
Pals
Roses
Badalona
Pineda de Mar
Palafrugell
Tortosa
La Pineda

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Seattle to Barcelona. momondo saves you time and could save you money on your trip.

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

Flights from Seattle to Barcelona with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Barcelona from Seattle.

I’m not ready to book a flight from Seattle to Barcelona right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Barcelona from Seattle. 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.

An easier way to manage your Barcelona-El Prat Airport trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Fri 2/6
Fri 2/13
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Barcelona

Popular cities in Spain

Popular flights according to clicks in the last 7 days on momondo
Flights to Girona Costa Brava Airportfrom $461