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

KLM, Delta, and Air Canada are the most popular carriers operating from Washington to Barcelona-El Prat

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 29% of people opting to fly with this airline when traveling to Barcelona-El Prat Airport. Keep in mind that there are 15 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 16h 15m 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.

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 February 2026, there are 15 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.

$261 Cheap Flights from State of Washington to Barcelona-El Prat Airport in 2026

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One-way

Last minute

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Cheap round-trip flights

Enter your travel dates to find the best prices.

3:40 pm - 2:45 pm

SEA

BCN

14h 05m

1 stop

3:45 pm - 8:40 pm

BCN

SEA

13h 55m

1 stop

$404Icelandair

Sun, May 3 - Sat, May 9

3:40 pm - 2:45 pm

SEA

BCN

14h 05m

1 stop

3:45 pm - 8:40 pm

BCN

SEA

13h 55m

1 stop

$405Icelandair

Sun, May 3 - Sat, May 9

3:40 pm - 2:45 pm

SEA

BCN

14h 05m

1 stop

3:45 pm - 8:40 pm

BCN

SEA

13h 55m

1 stop

$408Icelandair

Wed, Apr 22 - Wed, Apr 29

12:25 pm - 4:30 pm

GEG

BCN

19h 05m

2 stops

9:35 am - 11:14 pm

BCN

GEG

21h 39m

2 stops

$474American Airlines

Wed, Mar 4 - Wed, Mar 11

6:40 am - 8:50 am

PDX

BCN

17h 10m

1 stop

9:35 am - 10:02 pm

BCN

PDX

20h 27m

1 stop

$477British Airways

Tue, Mar 3 - Tue, Mar 10

7:30 pm - 10:30 pm

PDX

BCN

18h 00m

1 stop

12:00 pm - 5:40 pm

BCN

PDX

14h 40m

1 stop

$478British Airways

Sun, Apr 19 - Thu, Apr 30

10:56 am - 5:35 pm

PDX

BCN

21h 39m

2 stops

5:50 am - 7:14 pm

BCN

PDX

21h 24m

2 stops

$480Lufthansa

Tue, Mar 3 - Tue, Mar 10

10:56 am - 5:35 pm

PDX

BCN

21h 39m

2 stops

9:55 am - 9:10 pm

BCN

PDX

19h 15m

2 stops

$481Lufthansa

Tue, Mar 3 - Tue, Mar 10

7:00 am - 8:45 am

PDX

BCN

16h 45m

1 stop

1:25 pm - 11:10 am

BCN

PDX

30h 45m

1 stop

$482KLM

Mon, Apr 20 - Mon, Apr 27

12:04 pm - 2:45 pm

PDX

BCN

17h 41m

2 stops

10:20 am - 11:44 pm

BCN

PDX

21h 24m

1 stop

$484American Airlines

Tue, Mar 3 - Tue, Mar 10

Lufthansa flights from State of Washington to Barcelona-El Prat Airport

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

Lufthansa

Mar 1

SEA3:10 pmSeattle/Tacoma Intl

22h 55m

1 stop

BCN11:05 pmBarcelona-El Prat

Mar 8

BCN7:40 amBarcelona-El Prat

14h 40m

1 stop

SEA1:20 pmSeattle/Tacoma Intl

$438

Lufthansa

Mar 2

SEA2:00 pmSeattle/Tacoma Intl

18h 45m

1 stop

BCN5:45 pmBarcelona-El Prat

Mar 9

BCN5:50 amBarcelona-El Prat

15h 20m

1 stop

SEA1:10 pmSeattle/Tacoma Intl

$449

Lufthansa

Mar 3

SEA2:00 pmSeattle/Tacoma Intl

14h 00m

1 stop

BCN1:00 pmBarcelona-El Prat

Mar 8

BCN7:40 amBarcelona-El Prat

14h 40m

1 stop

SEA1:20 pmSeattle/Tacoma Intl

$455

Icelandair flights from State of Washington to Barcelona-El Prat Airport

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

Icelandair

May 3

SEA3:40 pmSeattle/Tacoma Intl

14h 05m

1 stop

BCN2:45 pmBarcelona-El Prat

May 13

BCN3:45 pmBarcelona-El Prat

13h 55m

1 stop

SEA8:40 pmSeattle/Tacoma Intl

$404

Icelandair

May 3

SEA3:40 pmSeattle/Tacoma Intl

14h 05m

1 stop

BCN2:45 pmBarcelona-El Prat

May 9

BCN3:45 pmBarcelona-El Prat

13h 55m

1 stop

SEA8:40 pmSeattle/Tacoma Intl

$405

Icelandair

Apr 22

SEA3:40 pmSeattle/Tacoma Intl

14h 05m

1 stop

BCN2:45 pmBarcelona-El Prat

Apr 29

BCN3:45 pmBarcelona-El Prat

13h 55m

1 stop

SEA8:40 pmSeattle/Tacoma Intl

$408

momondo Fare Finder

Use the filters below to find and compare flights from Washington 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

Sun 5/3

3:40 pm-2:45 pm

1 stop14h 05m

Barcelona-El Prat

Sat 5/9

3:45 pm-8:40 pm

1 stop13h 55m

$404

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Sun 5/3

3:40 pm-2:45 pm

1 stop14h 05m

Barcelona-El Prat

Sat 5/9

3:45 pm-8:40 pm

1 stop13h 55m

$405

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Wed 4/22

3:40 pm-2:45 pm

1 stop14h 05m

Barcelona-El Prat

Wed 4/29

3:45 pm-8:40 pm

1 stop13h 55m

$408

SpokaneBarcelona

GEG - BCN

GEGBCN

Spokane

Wed 3/4

12:25 pm-4:30 pm

2 stops19h 05m

Barcelona-El Prat

Wed 3/11

9:35 am-11:14 pm

2 stops21h 39m

$474

PortlandBarcelona

PDX - BCN

PDXBCN

Portland

Tue 3/3

6:40 am-8:50 am

1 stop17h 10m

Barcelona-El Prat

Tue 3/10

9:35 am-10:02 pm

1 stop20h 27m

$477

PortlandBarcelona

PDX - BCN

PDXBCN

Portland

Sun 4/19

7:30 pm-10:30 pm

1 stop18h 00m

Barcelona-El Prat

Thu 4/30

12:00 pm-5:40 pm

1 stop14h 40m

$478

PortlandBarcelona

PDX - BCN

PDXBCN

Portland

Tue 3/3

10:56 am-5:35 pm

2 stops21h 39m

Barcelona-El Prat

Tue 3/10

5:50 am-7:14 pm

2 stops21h 24m

$480

PortlandBarcelona

PDX - BCN

PDXBCN

Portland

Tue 3/3

10:56 am-5:35 pm

2 stops21h 39m

Barcelona-El Prat

Tue 3/10

9:55 am-9:10 pm

2 stops19h 15m

$481

PortlandBarcelona

PDX - BCN

PDXBCN

Portland

Mon 4/20

7:00 am-8:45 am

1 stop16h 45m

Barcelona-El Prat

Mon 4/27

1:25 pm-11:10 am

1 stop30h 45m

$482

PortlandBarcelona

PDX - BCN

PDXBCN

Portland

Tue 3/3

12:04 pm-2:45 pm

2 stops17h 41m

Barcelona-El Prat

Tue 3/10

10:20 am-11:44 pm

1 stop21h 24m

$484

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 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 January. Flight prices, which tend to average around $535, 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 State of Washington during February instead. Flights to Barcelona-El Prat Airport in February, while not as cheap as those in January, still average around $579.

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 Tuesday when prices can be found for as low as $1,258. 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 Saturday because tickets tend to average around $1,759. 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 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 $793 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 $707 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 20% 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

Best Price Found	$648
Fastest flight time	10h 30m
Direct flights	Wed, Fri and Sun

The best one-way flight to Barcelona-El Prat Airport from State of Washington in the past 72 hours is $648. The best round-trip flight deal from State of Washington to Barcelona-El Prat Airport found on momondo in the last 72 hours is $883.

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 February 2026, there are 15 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 87.72% of all bookings. The subsequent popular models are Boeing 787 Dreamliner at 8.77%, Boeing 787-9 Dreamliner at 1.75%, and Airbus A350-900 at 1.75%.

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 7.1 606 reviews	Search Icelandair flights
Scandinavian Airlines	PriceFrom $461	Free Cancellation	Rating 7.3 1,677 reviews	Search Scandinavian Airlines flights
Aer Lingus	PriceFrom $476	Free Cancellation	Rating 7.2 1,445 reviews	Search Aer Lingus flights
Air Canada	PriceFrom $477	Free Cancellation	Rating 7.1 10,688 reviews	Search Air Canada flights
United Airlines	PriceFrom $482	Free Cancellation	Rating 7.4 9,236 reviews	Search United Airlines flights
Delta	PriceFrom $486	Free Cancellation	Rating 7.9 8,147 reviews	Search Delta flights
Lufthansa	PriceFrom $493	Free Cancellation	Rating 6.8 7,761 reviews	Search Lufthansa flights
British Airways	PriceFrom $499	Free Cancellation	Rating 6.7 7,716 reviews	Search British Airways flights
American Airlines	PriceFrom $502	Free Cancellation	Rating 7.2 11,228 reviews	Search American Airlines flights
Iberia	PriceFrom $572	Free Cancellation	Rating 7.0 3,104 reviews	Search Iberia flights

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Why use momondo?

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 $261

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 3/2. 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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Lufthansa flights from State of Washington to Barcelona-El Prat Airport

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

Icelandair flights from State of Washington to Barcelona-El Prat Airport

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

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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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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 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 20% 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?

KLM, Delta, and Air Canada 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

Best Price Found

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.

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