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

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

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

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

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 35% 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 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 May 2026. The most frequent departure time is 3:00PM, with 100% of daily flights leaving in the afternoon.

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 May 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 $1,373 to $954. The lowest price recently found on this route was $758.

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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.

6:10 pm - 9:30 am

SEA

BCN

30h 20m

1 stop

10:25 am - 3:40 pm

BCN

SEA

14h 15m

1 stop

$758Condor

Mon, Aug 17 - Tue, Aug 25

11:30 am - 4:05 pm

SEA

BCN

19h 35m

2 stops

8:00 am - 3:40 pm

BCN

SEA

16h 40m

1 stop

$760Multiple Airlines

Thu, Oct 8 - Sun, Oct 18

10:05 am - 4:05 pm

SEA

BCN

21h 00m

2 stops

10:25 am - 3:40 pm

BCN

SEA

14h 15m

1 stop

$761Multiple Airlines

Thu, Oct 8 - Tue, Oct 13

3:40 pm - 4:25 pm

SEA

BCN

15h 45m

1 stop

5:30 pm - 11:45 am

BCN

SEA

27h 15m

1 stop

$763Icelandair

Sat, Aug 15 - Sun, Aug 23

8:00 am - 1:50 am

SEA

BCN

32h 50m

3 stops

1:25 pm - 11:55 am

BCN

SEA

31h 30m

3 stops

$764Multiple Airlines

Wed, Sep 9 - Wed, Sep 16

3:40 pm - 12:55 am

SEA

BCN

24h 15m

2 stops

10:40 pm - 9:04 pm

BCN

SEA

31h 24m

3 stops

$765Multiple Airlines

Tue, Sep 8 - Fri, Sep 18

7:15 am - 6:10 pm

SEA

BCN

25h 55m

2 stops

7:00 pm - 1:45 pm

BCN

SEA

27h 45m

1 stop

$767Scandinavian Airlines

Tue, Sep 1 - Fri, Sep 11

3:55 pm - 6:10 pm

SEA

BCN

17h 15m

1 stop

7:00 pm - 1:45 pm

BCN

SEA

27h 45m

1 stop

$768Scandinavian Airlines

Tue, Sep 1 - Thu, Sep 10

6:00 pm - 10:10 pm

SEA

BCN

19h 10m

1 stop

7:00 am - 9:15 pm

BCN

SEA

22h 15m

2 stops

$769Multiple Airlines

Sat, Oct 17 - Sun, Nov 1

3:55 pm - 6:10 pm

SEA

BCN

17h 15m

1 stop

12:50 pm - 1:45 pm

BCN

SEA

33h 55m

2 stops

$770Scandinavian Airlines

Tue, Sep 15 - Thu, Sep 24

Condor flights from Seattle to Barcelona

Our best Condor deals on Seattle to Barcelona flight tickets

Condor

Aug 17

SEA6:10 pmSeattle/Tacoma Intl

30h 20m

1 stop

BCN9:30 amBarcelona-El Prat

Aug 25

BCN10:25 amBarcelona-El Prat

14h 15m

1 stop

SEA3:40 pmSeattle/Tacoma Intl

$758

Condor

May 28

SEA6:05 pmSeattle/Tacoma Intl

19h 05m

1 stop

BCN10:10 pmBarcelona-El Prat

Jun 4

BCN10:15 amBarcelona-El Prat

14h 45m

1 stop

SEA4:00 pmSeattle/Tacoma Intl

$769

Condor

Jun 7

SEA5:40 pmSeattle/Tacoma Intl

13h 20m

1 stop

BCN4:00 pmBarcelona-El Prat

Sep 24

BCN8:00 amBarcelona-El Prat

17h 00m

1 stop

SEA4:00 pmSeattle/Tacoma Intl

$770

Icelandair flights from Seattle to Barcelona

Our best Icelandair deals on Seattle to Barcelona flight tickets

Icelandair

Aug 15

SEA3:40 pmSeattle/Tacoma Intl

15h 45m

1 stop

BCN4:25 pmBarcelona-El Prat

Aug 23

BCN5:30 pmBarcelona-El Prat

27h 15m

1 stop

SEA11:45 amSeattle/Tacoma Intl

$763

Icelandair

Aug 15

SEA3:40 pmSeattle/Tacoma Intl

15h 45m

1 stop

BCN4:25 pmBarcelona-El Prat

Aug 23

BCN5:30 pmBarcelona-El Prat

27h 15m

1 stop

SEA11:45 amSeattle/Tacoma Intl

$812

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Mon 8/17

6:10 pm-9:30 am

1 stop30h 20m

Barcelona-El Prat

Tue 8/25

10:25 am-3:40 pm

1 stop14h 15m

$758

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Thu 10/8

11:30 am-4:05 pm

2 stops19h 35m

Barcelona-El Prat

Sun 10/18

8:00 am-3:40 pm

1 stop16h 40m

$760

Quickest round-trip

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Thu 10/8

10:05 am-4:05 pm

2 stops21h 00m

Barcelona-El Prat

Tue 10/13

10:25 am-3:40 pm

1 stop14h 15m

$761

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Sat 8/15

3:40 pm-4:25 pm

1 stop15h 45m

Barcelona-El Prat

Sun 8/23

5:30 pm-11:45 am

1 stop27h 15m

$763

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Wed 9/9

8:00 am-1:50 am

3 stops32h 50m

Barcelona-El Prat

Wed 9/16

1:25 pm-11:55 am

3 stops31h 30m

$764

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Tue 9/8

3:40 pm-12:55 am

2 stops24h 15m

Barcelona-El Prat

Fri 9/18

10:40 pm-9:04 pm

3 stops31h 24m

$765

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Tue 9/1

7:15 am-6:10 pm

2 stops25h 55m

Barcelona-El Prat

Fri 9/11

7:00 pm-1:45 pm

1 stop27h 45m

$767

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Tue 9/1

3:55 pm-6:10 pm

1 stop17h 15m

Barcelona-El Prat

Thu 9/10

7:00 pm-1:45 pm

1 stop27h 45m

$768

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Sat 10/17

6:00 pm-10:10 pm

1 stop19h 10m

Barcelona-El Prat

Sun 11/1

7:00 am-9:15 pm

2 stops22h 15m

$769

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Tue 9/15

3:55 pm-6:10 pm

1 stop17h 15m

Barcelona-El Prat

Thu 9/24

12:50 pm-1:45 pm

2 stops33h 55m

$770

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

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 $763 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).

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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 May 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 7.0 662 reviews	Search Icelandair flights
Lufthansa	PriceFrom $473	Free Cancellation	Rating 6.8 8,032 reviews	Search Lufthansa flights
Air Canada	PriceFrom $478	Free Cancellation	Rating 7.1 11,092 reviews	Search Air Canada flights
Scandinavian Airlines	PriceFrom $478	Free Cancellation	Rating 7.4 1,793 reviews	Search Scandinavian Airlines flights
American Airlines	PriceFrom $480	Free Cancellation	Rating 7.1 11,639 reviews	Search American Airlines flights
United Airlines	PriceFrom $481	Free Cancellation	Rating 7.4 9,749 reviews	Search United Airlines flights
British Airways	PriceFrom $483	Free Cancellation	Rating 6.7 8,007 reviews	Search British Airways flights
Delta	PriceFrom $486	Free Cancellation	Rating 7.9 8,423 reviews	Search Delta flights
Aer Lingus	PriceFrom $560	Free Cancellation	Rating 7.3 1,586 reviews	Search Aer Lingus flights
Air France	PriceFrom $561	Free Cancellation	Rating 7.4 1,592 reviews	Search Air France 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

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Cheap flights from Seattle to Barcelona from $274

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 8/18. 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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Condor flights from Seattle to Barcelona

Our best Condor deals on Seattle to Barcelona flight tickets

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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 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

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