What is the cheapest airline that flies from Seattle/Tacoma Intl to Barcelona?

Icelandair, British Airways, and KLM are the most popular carriers operating from Seattle/Tacoma Intl to Barcelona

How many flights depart from Seattle to Barcelona on average per day?

The number of flights available between Seattle and Barcelona is 1 per day as of June 2026. The most frequent departure time is 3:00PM, with 100% of daily flights leaving in the afternoon.

What airlines fly to Barcelona?

Condor, Icelandair and Delta are the top three most popular airlines that fly to Barcelona from Seattle according to our data. Condor is the first choice among our users, with 36% of people opting to fly with this airline when traveling to Barcelona. Keep in mind that there are 14 different airlines that fly to Barcelona on a routine basis, so you have a few additional options to choose from.

How often are flights from Seattle to Barcelona delayed?

Historically, on average around 25% of flights between Seattle and Barcelona have experienced a delay on any given week. The average delay length over the past 12 months has been 153 minutes.

What day of the week experiences the fewest flight delays on this route?

Thursday is statistically the day of the week which experiences the fewest number of delays on this flight route. Tuesday has historically seen more delays on average compared to the rest of the week.

How many flights depart from Seattle to Barcelona on average per week?

9 flights are operational weekly from Seattle to Barcelona as of June 2026. The most popular departure day for this route is Tue, with 33% of flights per week taking off on this day.

What is the most punctual flight time for Seattle to Barcelona flights?

Generally, flights departing in the early afternoon tend to experience fewer delays. Flights in the early afternoon have, in the past, seen delays more frequently in comparison.

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?

As of June 2026, there are 14 operators available to choose from 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.

$225 Cheap Flights from Seattle to Barcelona in 2026

Q: What is the typical price of a round-trip flight between Seattle and Barcelona?

Prices are currently low for flights on this route. Typical prices usually range from $1,383 to $956. The lowest price recently found on this route was $738.

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

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

Trusted and free

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

Price Alerts

Not ready to book? to track prices.

Search flight deals

Find the cheapest flights from Seattle to Barcelona

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

6:15 pm - 10:10 pm

SEA

BCN

18h 55m

1 stop

5:00 pm - 4:00 pm

BCN

SEA

32h 00m

1 stop

$738Condor

Sat, Sep 5 - Wed, Sep 30

9:25 pm - 6:10 pm

SEA

BCN

35h 45m

2 stops

7:00 pm - 1:45 pm

BCN

SEA

27h 45m

1 stop

$739Scandinavian Airlines

Sun, Sep 27 - Mon, Oct 5

10:05 am - 10:10 pm

SEA

BCN

27h 05m

2 stops

8:00 am - 3:40 pm

BCN

SEA

16h 40m

1 stop

$740Multiple Airlines

Thu, Oct 8 - Tue, Oct 13

10:14 am - 10:10 pm

SEA

BCN

26h 56m

2 stops

10:15 am - 4:35 pm

BCN

SEA

14h 20m

1 stop

$741Multiple Airlines

Mon, Aug 17 - Tue, Oct 27

5:40 pm - 6:10 pm

SEA

BCN

39h 30m

2 stops

12:50 pm - 1:45 pm

BCN

SEA

33h 55m

2 stops

$742Scandinavian Airlines

Sat, Sep 5 - Thu, Oct 1

6:05 pm - 10:10 pm

SEA

BCN

19h 05m

1 stop

7:00 am - 11:44 pm

BCN

SEA

24h 44m

2 stops

$748Multiple Airlines

Tue, Oct 20 - Thu, Oct 29

3:55 pm - 6:10 pm

SEA

BCN

17h 15m

1 stop

12:50 pm - 1:45 pm

BCN

SEA

33h 55m

2 stops

$749Scandinavian Airlines

Tue, Aug 18 - Thu, Sep 17

6:05 pm - 9:25 am

SEA

BCN

30h 20m

1 stop

8:00 am - 4:00 pm

BCN

SEA

17h 00m

1 stop

$751Condor

Tue, Jul 21 - Thu, Jul 30

1:30 pm - 8:45 am

SEA

REU

34h 15m

2 stops

10:25 am - 11:35 am

REU

SEA

34h 10m

2 stops

$2,600Iberia

Sun, Jul 19 - Sat, Jul 25

1:30 pm - 8:45 am

SEA

REU

34h 15m

2 stops

9:25 am - 6:25 pm

REU

SEA

42h 00m

2 stops

$2,636Iberia

Sun, Jul 19 - Tue, Jul 28

Condor flights from Seattle to Barcelona

Our best Condor deals on Seattle to Barcelona flight tickets

Condor

Sep 5

SEA6:15 pmSeattle/Tacoma Intl

18h 55m

1 stop

BCN10:10 pmBarcelona-El Prat

Sep 30

BCN5:00 pmBarcelona-El Prat

32h 00m

1 stop

SEA4:00 pmSeattle/Tacoma Intl

$738

Condor

Jul 21

SEA6:05 pmSeattle/Tacoma Intl

30h 20m

1 stop

BCN9:25 amBarcelona-El Prat

Jul 30

BCN8:00 amBarcelona-El Prat

17h 00m

1 stop

SEA4:00 pmSeattle/Tacoma Intl

$751

Condor

Sep 3

SEA6:05 pmSeattle/Tacoma Intl

13h 00m

1 stop

BCN4:05 pmBarcelona-El Prat

Sep 14

BCN8:00 amBarcelona-El Prat

17h 10m

1 stop

SEA4:10 pmSeattle/Tacoma Intl

$781

Scandinavian Airlines flights from Seattle to Barcelona

Our best Scandinavian Airlines deals on Seattle to Barcelona flight tickets

Scandinavian Airlines

Sep 27

SEA9:25 pmSeattle/Tacoma Intl

35h 45m

2 stops

BCN6:10 pmBarcelona-El Prat

Oct 5

BCN7:00 pmBarcelona-El Prat

27h 45m

1 stop

SEA1:45 pmSeattle/Tacoma Intl

$739

Scandinavian Airlines

Sep 5

SEA5:40 pmSeattle/Tacoma Intl

39h 30m

2 stops

BCN6:10 pmBarcelona-El Prat

Oct 1

BCN12:50 pmBarcelona-El Prat

33h 55m

2 stops

SEA1:45 pmSeattle/Tacoma Intl

$742

Scandinavian Airlines

Aug 18

SEA3:55 pmSeattle/Tacoma Intl

17h 15m

1 stop

BCN6:10 pmBarcelona-El Prat

Sep 17

BCN12:50 pmBarcelona-El Prat

33h 55m

2 stops

SEA1:45 pmSeattle/Tacoma Intl

$749

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Sat 9/5

6:15 pm-10:10 pm

1 stop18h 55m

Barcelona-El Prat

Wed 9/30

5:00 pm-4:00 pm

1 stop32h 00m

$738

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Sun 9/27

9:25 pm-6:10 pm

2 stops35h 45m

Barcelona-El Prat

Mon 10/5

7:00 pm-1:45 pm

1 stop27h 45m

$739

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Thu 10/8

10:05 am-10:10 pm

2 stops27h 05m

Barcelona-El Prat

Tue 10/13

8:00 am-3:40 pm

1 stop16h 40m

$740

Quickest round-trip

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Mon 8/17

10:14 am-10:10 pm

2 stops26h 56m

Barcelona-El Prat

Tue 10/27

10:15 am-4:35 pm

1 stop14h 20m

$741

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Sat 9/5

5:40 pm-6:10 pm

2 stops39h 30m

Barcelona-El Prat

Thu 10/1

12:50 pm-1:45 pm

2 stops33h 55m

$742

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Tue 10/20

6:05 pm-10:10 pm

1 stop19h 05m

Barcelona-El Prat

Thu 10/29

7:00 am-11:44 pm

2 stops24h 44m

$748

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Tue 8/18

3:55 pm-6:10 pm

1 stop17h 15m

Barcelona-El Prat

Thu 9/17

12:50 pm-1:45 pm

2 stops33h 55m

$749

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Tue 7/21

6:05 pm-9:25 am

1 stop30h 20m

Barcelona-El Prat

Thu 7/30

8:00 am-4:00 pm

1 stop17h 00m

$751

SeattleReus

SEA - REU

SEAREU

Seattle/Tacoma Intl

Sun 7/19

1:30 pm-8:45 am

2 stops34h 15m

Reus

Sat 7/25

10:25 am-11:35 am

2 stops34h 10m

$2,600

SeattleReus

SEA - REU

SEAREU

Seattle/Tacoma Intl

Sun 7/19

1:30 pm-8:45 am

2 stops34h 15m

Reus

Tue 7/28

9:25 am-6:25 pm

2 stops42h 00m

$2,636

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

Prices

Airlines

Delays

Other information

What is the typical price of a round-trip flight between Seattle and Barcelona?

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 $351. If you don’t want to visit Barcelona in January, then you should wait until December to fly from Seattle, when ticket prices are also cheap, with an average price of $352.

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

The cheapest day to depart from Seattle to Barcelona is on a Friday when prices can be found for as low as $920. On the other hand, Thursday 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 $1,235.

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 from Seattle 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 $762 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 $684 on momondo.

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

There are 2 cabin classes available to choose from on Seattle 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 35m
Direct flights	Wed, Fri and Sun
Airports in Barcelona	3 airports

The fastest flight from Seattle to Barcelona takes 10h 35m

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

Frequently asked questions about flying from Seattle to Barcelona

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 35m.
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?
As of June 2026, there are 14 operators available to choose from 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
Icelandair	PriceFrom $367	Free Cancellation	Rating 7.0 665 reviews	Search Icelandair flights
Lufthansa	PriceFrom $473	Free Cancellation	Rating 6.8 8,036 reviews	Search Lufthansa flights
Scandinavian Airlines	PriceFrom $478	Free Cancellation	Rating 7.4 1,804 reviews	Search Scandinavian Airlines flights
American Airlines	PriceFrom $480	Free Cancellation	Rating 7.1 11,641 reviews	Search American Airlines flights
United Airlines	PriceFrom $481	Free Cancellation	Rating 7.4 9,772 reviews	Search United Airlines flights
British Airways	PriceFrom $483	Free Cancellation	Rating 6.7 8,025 reviews	Search British Airways flights
Delta	PriceFrom $486	Free Cancellation	Rating 7.9 8,399 reviews	Search Delta flights
Air Canada	PriceFrom $488	Free Cancellation	Rating 7.1 11,125 reviews	Search Air Canada flights
Aer Lingus	PriceFrom $560	Free Cancellation	Rating 7.3 1,594 reviews	Search Aer Lingus flights
Iberia	PriceFrom $586	Free Cancellation	Rating 7.0 3,222 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.

An easier way to manage your Barcelona 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

Sat 7/4

Sat 7/11

Email me momondo's favorite deals

By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Spain

Nearby airports

Airlines

Other Spain destinations

Other flights from Seattle

Complete your trip

Feeling lucky

Fly into one of these airports located in Barcelona

Barcelona-El Prat Airport

Girona Costa Brava Airport

Cheap flights from Seattle to Barcelona from $225

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 12/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Find the cheapest flights from Seattle to Barcelona

Cheap round-trip flights

Cheap one-way flights

Cheap last minute flights

Cheap direct flights

Condor flights from Seattle to Barcelona

Our best Condor deals on Seattle to Barcelona flight tickets

Scandinavian Airlines flights from Seattle to Barcelona

Our best Scandinavian Airlines deals on Seattle to Barcelona flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from Seattle to Barcelona that are best for you.

See travel insights to Barcelona from

How to get the cheapest flight ticket from Seattle to Barcelona

What is the typical price of a round-trip flight between Seattle and Barcelona?

What is the cheapest month to fly to Barcelona?

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

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

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

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

What is the cheapest airline that flies from Seattle/Tacoma Intl to Barcelona?

What airlines fly to Barcelona?

How often are flights from Seattle to Barcelona delayed?

What is the most punctual flight time for Seattle to Barcelona flights?

What day of the week experiences the fewest flight delays on this route?

How many flights depart from Seattle to Barcelona on average per day?

How many flights depart from Seattle to Barcelona on average per week?

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

Direct flights

Airports in Barcelona

Frequently asked questions about flying from Seattle to Barcelona

Best airlines flying from Seattle to Barcelona

Compare and see reviews for airlines that fly from Seattle to Barcelona with momondo

Why use momondo?

An easier way to manage your Barcelona 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.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

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

Fly your favorite airline to Barcelona

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Popular cities in Spain

Popular flights according to clicks in the last 7 days on momondo

Fly to other destinations from Seattle

According to popular flight searches on momondo this year

Complete your trip to Barcelona

Explore popular destinations other users love

According to popular flight searches on momondo this year