What airlines fly to Barcelona-El Prat Airport?

British Airways, Delta and Icelandair are the top three most popular airlines that fly to Barcelona-El Prat Airport from State of Washington according to our data. British Airways is the first choice among our users, with 31% of people opting to fly with this airline when traveling to Barcelona-El Prat Airport. Keep in mind that there are 16 different airlines that fly to Barcelona-El Prat Airport on a routine basis, so you have a few additional options to choose from.

How long does it take to fly to Barcelona-El Prat Airport?

Flight times vary depending on what airport in State of Washington you fly out of and what airport in Barcelona-El Prat Airport you fly into. For example, flying from Seattle to Barcelona-El Prat Airport takes 10h 30m on average. On the other hand, flying from Spokane to Barcelona-El Prat Airport takes 17h 20m on average. Keep in mind that it’s always quicker to opt for a non-stop flight, so be sure to check momondo if there are any available for your route.

What is the cheapest airline that flies from Washington to Barcelona-El Prat?

British Airways and WestJet are the most popular carriers operating from Washington to Barcelona-El Prat

When did momondo last update prices for flights from Washington to Barcelona-El Prat Airport?

Prices for flights from Washington to Barcelona-El Prat Airport are refreshed on a daily basis.

How many operators does momondo search for flights from Washington to Barcelona-El Prat Airport?

As of December 2025, there are 17 operators available to choose from for flights from Washington to Barcelona-El Prat Airport.

How old do you have to be to fly from Washington 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 Washington to Barcelona-El Prat Airport.

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

The necessary travel and health documents for your Barcelona-El Prat Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$247 Cheap Flights from State of Washington to Barcelona-El Prat Airport in 2025/26

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2:35 pm - 1:35 pm

SEA

BCN

14h 00m1 stop

11:50 am - 5:00 pm

BCN

SEA

14h 10m1 stop

$412Icelandair

Fri, Jan 30 - Tue, Feb 3

3:35 pm - 1:15 pm

SEA

BCN

13h 40m1 stop

11:50 am - 6:00 pm

BCN

SEA

14h 10m1 stop

$428Icelandair

Sun, Mar 8 - Tue, Mar 24

2:35 pm - 1:15 pm

SEA

BCN

13h 40m1 stop

11:50 am - 5:00 pm

BCN

SEA

14h 10m1 stop

$442Icelandair

Sun, Jan 11 - Sun, Jan 18

5:50 am - 9:35 am

SEA

BCN

18h 45m2 stops

5:50 am - 7:16 pm

BCN

SEA

22h 26m2 stops

$452Multiple Airlines

Fri, Jan 23 - Sun, Feb 1

2:00 pm - 1:05 pm

SEA

BCN

14h 05m1 stop

5:50 am - 12:10 pm

BCN

SEA

15h 20m1 stop

$453Lufthansa

Thu, Jan 29 - Thu, Feb 5

9:50 am - 9:35 am

PDX

BCN

38h 45m2 stops

7:40 am - 6:30 pm

BCN

PDX

19h 50m2 stops

$455Multiple Airlines

Sun, Jan 11 - Sun, Jan 18

2:00 pm - 1:05 pm

SEA

BCN

14h 05m1 stop

5:50 am - 12:10 pm

BCN

SEA

15h 20m1 stop

$457Lufthansa

Thu, Jan 29 - Thu, Feb 5

6:50 pm - 9:10 am

SEA

BCN

29h 20m1 stop

8:40 pm - 4:55 pm

BCN

SEA

29h 15m1 stop

$458British Airways

Thu, Jan 22 - Thu, Feb 5

5:45 pm - 10:30 pm

PDX

BCN

19h 45m1 stop

8:40 pm - 4:55 pm

BCN

PDX

28h 15m1 stop

$458British Airways

Mon, Mar 2 - Thu, Mar 12

7:05 pm - 9:35 am

PDX

BCN

53h 30m2 stops

12:35 pm - 7:14 pm

BCN

PDX

38h 39m2 stops

$463Air Canada

Mon, Mar 2 - Thu, Mar 12

British Airways flights from State of Washington to Barcelona-El Prat Airport

Our best British Airways deals on State of Washington to Barcelona-El Prat Airport flight tickets

British Airways

Jan 22

SEA6:50 pmSeattle/Tacoma Intl

29h 20m

1 stop

BCN9:10 amBarcelona-El Prat

Feb 5

BCN8:40 pmBarcelona-El Prat

29h 15m

1 stop

SEA4:55 pmSeattle/Tacoma Intl

$458

Find similar

British Airways

Jan 13

SEA8:04 amSeattle/Tacoma Intl

20h 36m

2 stops

BCN1:40 pmBarcelona-El Prat

Jan 23

BCN10:40 amBarcelona-El Prat

17h 38m

1 stop

SEA7:18 pmSeattle/Tacoma Intl

$473

Find similar

British Airways

Jan 11

PDX5:45 pmPortland

17h 20m

1 stop

BCN8:05 pmBarcelona-El Prat

Jan 18

BCN10:40 amBarcelona-El Prat

20h 31m

1 stop

PDX10:11 pmPortland

$474

Find similar

United Airlines flights from State of Washington to Barcelona-El Prat Airport

Our best United Airlines deals on State of Washington to Barcelona-El Prat Airport flight tickets

United Airlines

Jan 22

SEA7:00 amSeattle/Tacoma Intl

17h 00m

1 stop

BCN9:00 amBarcelona-El Prat

Feb 9

BCN1:35 pmBarcelona-El Prat

35h 26m

2 stops

SEA4:01 pmSeattle/Tacoma Intl

$465

Find similar

United Airlines

Feb 15

SEA7:15 amSeattle/Tacoma Intl

41h 20m

2 stops

BCN9:35 amBarcelona-El Prat

Feb 24

BCN1:35 pmBarcelona-El Prat

38h 28m

2 stops

SEA7:03 pmSeattle/Tacoma Intl

$468

Find similar

United Airlines

Mar 7

PDX11:28 pmPortland

23h 52m

2 stops

BCN8:20 amBarcelona-El Prat

Mar 17

BCN12:35 pmBarcelona-El Prat

42h 10m

2 stops

PDX10:45 pmPortland

$469

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momondo Fare Finder

Use the filters below to find and compare flights from Washington to Barcelona-El Prat Airport that are best for you.

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Fly to

Route

Depart

Return

Price

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Fri 1/30

2:35 pm-1:35 pm

1 stop14h 00m

Barcelona-El Prat

Tue 2/3

11:50 am-5:00 pm

1 stop14h 10m

$412

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Sun 3/8

3:35 pm-1:15 pm

1 stop13h 40m

Barcelona-El Prat

Tue 3/24

11:50 am-6:00 pm

1 stop14h 10m

$428

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Sun 1/11

2:35 pm-1:15 pm

1 stop13h 40m

Barcelona-El Prat

Sun 1/18

11:50 am-5:00 pm

1 stop14h 10m

$442

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Fri 1/23

5:50 am-9:35 am

2 stops18h 45m

Barcelona-El Prat

Sun 2/1

5:50 am-7:16 pm

2 stops22h 26m

$452

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Thu 1/29

2:00 pm-1:05 pm

1 stop14h 05m

Barcelona-El Prat

Thu 2/5

5:50 am-12:10 pm

1 stop15h 20m

$453

PortlandBarcelona

PDX - BCN

PDXBCN

Portland

Sun 1/11

9:50 am-9:35 am

2 stops38h 45m

Barcelona-El Prat

Sun 1/18

7:40 am-6:30 pm

2 stops19h 50m

$455

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Thu 1/29

2:00 pm-1:05 pm

1 stop14h 05m

Barcelona-El Prat

Thu 2/5

5:50 am-12:10 pm

1 stop15h 20m

$457

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Thu 1/22

6:50 pm-9:10 am

1 stop29h 20m

Barcelona-El Prat

Thu 2/5

8:40 pm-4:55 pm

1 stop29h 15m

$458

PortlandBarcelona

PDX - BCN

PDXBCN

Portland

Mon 3/2

5:45 pm-10:30 pm

1 stop19h 45m

Barcelona-El Prat

Thu 3/12

8:40 pm-4:55 pm

1 stop28h 15m

$458

PortlandBarcelona

PDX - BCN

PDXBCN

Portland

Mon 3/2

7:05 pm-9:35 am

2 stops53h 30m

Barcelona-El Prat

Thu 3/12

12:35 pm-7:14 pm

2 stops38h 39m

$463

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How to get the cheapest flight ticket from State of Washington 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

Prices

Airlines

Other information

What is the cheapest month to fly to Barcelona-El Prat Airport?

The cheapest month to fly to Barcelona-El Prat Airport from State of Washington is in February. Flight prices, which tend to average around $649, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of February, then book flights to Barcelona-El Prat Airport from State of Washington during January instead. Flights to Barcelona-El Prat Airport in January, while not as cheap as those in February, still average around $660.

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 Sunday when prices can be found for as low as $876. 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 $2,579. 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 time of day to depart on your flight to Barcelona-El Prat Airport?

Flying to Barcelona-El Prat Airport from State of Washington in the evening is the least expensive time of day to depart. momondo users have found prices as low as $888 when looking at flights departing in the evening. 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-El Prat Airport from State of Washington in the afternoon are generally more expensive because this time of day is more convenient for travelers’ schedules.

What is the cheapest Washington to Barcelona-El Prat flight route?

Fly from Seattle/Tacoma Intl to Barcelona-El Prat for the best Washington - 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 State of Washington when booking weeks ahead of your departure date. In general, you can expect to find flights to Barcelona-El Prat Airport for around $840 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 State of Washington for as low as $716 on momondo.

What cabin class options are available on Washington to Barcelona-El Prat flights?

There is only 1 cabin class available to choose from on Washington 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 State of Washington to Barcelona-El Prat Airport flights?

You could potentially save up to 4% on your flight if you consider stops on a State of Washington to Barcelona-El Prat Airport flight.

Cheap State of Washington to Barcelona-El Prat Airport flight deals and tips

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

Fastest flight time	10h 30m
Direct flights	Wed, Fri and Sun

The fastest flight from State of Washington to Barcelona-El Prat Airport takes 10h 30m

Direct flights go from State of Washington to Barcelona-El Prat Airport on Wednesday, Friday and Sunday. There are no airlines offering direct flights.

Search flight deals

When did momondo last update prices for flights from Washington to Barcelona-El Prat Airport?
Prices for flights from Washington to Barcelona-El Prat Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Washington to Barcelona-El Prat Airport?
As of December 2025, there are 17 operators available to choose from for flights from Washington to Barcelona-El Prat Airport.
How old do you have to be to fly from Washington 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 Washington to Barcelona-El Prat Airport.
What documentation or ID do you need to fly to Barcelona-El Prat Airport?
The necessary travel and health documents for your Barcelona-El Prat Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from State of Washington to Barcelona-El Prat Airport?
momondo data reveals that the most frequently booked plane model on the route from State of Washington to Barcelona-El Prat Airport is Airbus A330-900neo, representing 100.00% of all bookings.

Best airlines flying from State of Washington to Barcelona-El Prat Airport

Compare and see reviews for airlines that fly from State of Washington to Barcelona-El Prat Airport with momondo

Airline	Rating	Free Cancellation	Price
Icelandair	PriceFrom $367	Free Cancellation	Rating 7.0 590 reviews	Search Icelandair flights
Scandinavian Airlines	PriceFrom $461	Free Cancellation	Rating 7.4 1,606 reviews	Search Scandinavian Airlines flights
Air Canada	PriceFrom $478	Free Cancellation	Rating 7.1 10,527 reviews	Search Air Canada flights
United Airlines	PriceFrom $483	Free Cancellation	Rating 7.4 9,093 reviews	Search United Airlines flights
Aer Lingus	PriceFrom $498	Free Cancellation	Rating 7.2 1,392 reviews	Search Aer Lingus flights
American Airlines	PriceFrom $502	Free Cancellation	Rating 7.2 11,048 reviews	Search American Airlines flights
Lufthansa	PriceFrom $541	Free Cancellation	Rating 6.8 7,631 reviews	Search Lufthansa flights
British Airways	PriceFrom $549	Free Cancellation	Rating 6.7 7,579 reviews	Search British Airways flights
Iberia	PriceFrom $572	Free Cancellation	Rating 7.0 3,052 reviews	Search Iberia flights
KLM	PriceFrom $574	Free Cancellation	Rating 7.7 1,432 reviews	Search KLM flights

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Washington to Barcelona. Millions of users trust and use momondo every year so you are in good hands.

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

momondo does allow users to show only those flights to Barcelona from Washington which offer a flexible booking policy as well as other useful filters and features.

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

Once all potential Washington to Barcelona flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

If you are not ready to book a flight from Washington 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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Cheap flights from Washington to Barcelona from $247

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington to Barcelona departing on 3/15. 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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British Airways flights from State of Washington to Barcelona-El Prat Airport

Our best British Airways deals on State of Washington to Barcelona-El Prat Airport flight tickets

United Airlines flights from State of Washington to Barcelona-El Prat Airport

Our best United Airlines deals on State of Washington to Barcelona-El Prat Airport flight tickets

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How to get the cheapest flight ticket from State of Washington to Barcelona-El Prat Airport

What is the cheapest month to fly to Barcelona-El Prat Airport?

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

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

What is the cheapest Washington to Barcelona-El Prat flight route?

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

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

What cabin class options are available on Washington to Barcelona-El Prat flights?

There is only 1 cabin class available to choose from on Washington 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 State of Washington to Barcelona-El Prat Airport flights?

You could potentially save up to 4% on your flight if you consider stops on a State of Washington to Barcelona-El Prat Airport flight.

What is the cheapest airline that flies from Washington to Barcelona-El Prat?

British Airways and WestJet are the most popular carriers operating from Washington to Barcelona-El Prat

What airlines fly to Barcelona-El Prat Airport?

How long does it take to fly to Barcelona-El Prat Airport?

Cheap State of Washington to Barcelona-El Prat Airport flight deals and tips

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

Fastest flight time

Direct flights

When did momondo last update prices for flights from Washington to Barcelona-El Prat Airport?

How many operators does momondo search for flights from Washington to Barcelona-El Prat Airport?

How old do you have to be to fly from Washington to Barcelona-El Prat Airport?

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

What is the most popular plane model from State of Washington to Barcelona-El Prat Airport?

Best airlines flying from State of Washington to Barcelona-El Prat Airport

Compare and see reviews for airlines that fly from State of Washington to Barcelona-El Prat Airport with momondo

Traveling to a place near Barcelona?

Why use momondo?

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

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

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

I’m not ready to book a flight from Washington to Barcelona right now. Can momondo alert me if 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.

Get notified when prices go down

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

Find better results for your trip to Barcelona

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