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Cheap flights from Washington to Barcelona from $290

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 10/21. 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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0 bags

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Cheap round-trip flights

Enter your travel dates to find the best prices.
Scandinavian Airlines Logo
7:20 am - 6:20 pmSEA-BCN
26h 00m2 stops
Scandinavian Airlines Logo
7:10 pm - 10:08 pmBCN-SEA
35h 58m2 stops
$488Scandinavian Airlines
Find Deal
Sun, Feb 1 - Fri, Feb 6
Multiple Airlines Logo
2:35 pm - 9:30 pmSEA-BCN
21h 55m2 stops
Multiple Airlines Logo
5:45 am - 5:00 pmBCN-SEA
20h 15m2 stops
$494Multiple Airlines
Find Deal
Tue, Nov 18 - Tue, Nov 25
United Airlines Logo
10:52 am - 1:10 pmPDX-BCN
17h 18m1 stop
United Airlines Logo
1:35 pm - 10:15 pmBCN-PDX
41h 40m2 stops
$510United Airlines
Find Deal
Mon, Nov 17 - Tue, Dec 2
United Airlines Logo
6:00 am - 1:10 pmPDX-BCN
22h 10m3 stops
United Airlines Logo
1:35 pm - 10:15 pmBCN-PDX
41h 40m2 stops
$515United Airlines
Find Deal
Mon, Nov 17 - Tue, Dec 2
Air Canada Logo
3:15 pm - 9:35 amPDX-BCN
33h 20m2 stops
Air Canada Logo
1:35 pm - 2:40 pmBCN-PDX
34h 05m2 stops
$519Air Canada
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Thu, Nov 13 - Wed, Dec 24
American Airlines Logo
5:45 pm - 4:30 pmPDX-BCN
13h 45m1 stop
American Airlines Logo
11:00 am - 11:31 pmBCN-PDX
21h 31m1 stop
$522American Airlines
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Fri, Nov 7 - Thu, Nov 20
Air Canada Logo
9:50 am - 9:35 amPDX-BCN
38h 45m2 stops
Air Canada Logo
9:10 am - 9:15 amBCN-PDX
33h 05m2 stops
$523Air Canada
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Sun, Nov 9 - Sun, Nov 16
British Airways Logo
5:45 pm - 7:45 pmPDX-BCN
17h 00m1 stop
British Airways Logo
10:40 am - 10:57 pmBCN-PDX
21h 17m1 stop
$526British Airways
Find Deal
Wed, Feb 11 - Wed, Feb 18
British Airways Logo
5:45 pm - 10:30 pmPDX-BCN
19h 45m1 stop
British Airways Logo
6:40 am - 3:55 pmBCN-PDX
18h 15m1 stop
$531British Airways
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Mon, Nov 3 - Mon, Nov 17
American Airlines Logo
6:01 am - 7:50 pmGEG-BCN
29h 49m2 stops
American Airlines Logo
10:45 am - 12:59 pmBCN-GEG
35h 14m1 stop
$978American Airlines
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Fri, Mar 27 - Tue, Mar 31

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

Our best American Airlines deals on State of Washington to Barcelona-El Prat Airport flight tickets
American Airlines
Nov 7
PDX5:45 pmPortland
13h 45m
1 stop
BCN4:30 pmBarcelona-El Prat
Nov 20
BCN11:00 amBarcelona-El Prat
21h 31m
1 stop
PDX11:31 pmPortland
$522
Find similar
American Airlines
Oct 12
PDX2:45 pmPortland
16h 45m
1 stop
BCN4:30 pmBarcelona-El Prat
Oct 22
BCN7:40 amBarcelona-El Prat
18h 55m
1 stop
PDX5:35 pmPortland
$639
Find similar
American Airlines
Mar 31
GEG1:40 pmSpokane
17h 00m
2 stops
BCN3:40 pmBarcelona-El Prat
Apr 6
BCN10:45 amBarcelona-El Prat
18h 49m
1 stop
GEG8:34 pmSpokane
$1,125
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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
British Airways
Feb 11
PDX5:45 pmPortland
17h 00m
1 stop
BCN7:45 pmBarcelona-El Prat
Feb 18
BCN10:40 amBarcelona-El Prat
21h 17m
1 stop
PDX10:57 pmPortland
$526
Find similar
British Airways
Nov 3
PDX5:45 pmPortland
19h 45m
1 stop
BCN10:30 pmBarcelona-El Prat
Nov 17
BCN6:40 amBarcelona-El Prat
18h 15m
1 stop
PDX3:55 pmPortland
$531
Find similar
British Airways
Jan 19
PDX5:45 pmPortland
19h 45m
1 stop
BCN10:30 pmBarcelona-El Prat
Jan 25
BCN6:40 amBarcelona-El Prat
18h 15m
1 stop
PDX3:55 pmPortland
$534
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momondo Fare Finder

 
Customize your flight search to find flights from State of Washington 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 October 7, 2025.
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 2/1

7:20 am-6:20 pm

2 stops26h 00m

Barcelona-El Prat

Fri 2/6

7:10 pm-10:08 pm

2 stops35h 58m

$488

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Tue 11/18

2:35 pm-9:30 pm

2 stops21h 55m

Barcelona-El Prat

Tue 11/25

5:45 am-5:00 pm

2 stops20h 15m

$494

PortlandBarcelona

PDX - BCN

PDXBCN

Portland

Mon 11/17

10:52 am-1:10 pm

1 stop17h 18m

Barcelona-El Prat

Tue 12/2

1:35 pm-10:15 pm

2 stops41h 40m

$510

PortlandBarcelona

PDX - BCN

PDXBCN

Portland

Mon 11/17

6:00 am-1:10 pm

3 stops22h 10m

Barcelona-El Prat

Tue 12/2

1:35 pm-10:15 pm

2 stops41h 40m

$515

PortlandBarcelona

PDX - BCN

PDXBCN

Portland

Thu 11/13

3:15 pm-9:35 am

2 stops33h 20m

Barcelona-El Prat

Wed 12/24

1:35 pm-2:40 pm

2 stops34h 05m

$519

PortlandBarcelona

PDX - BCN

PDXBCN

Portland

Fri 11/7

5:45 pm-4:30 pm

1 stop13h 45m

Barcelona-El Prat

Thu 11/20

11:00 am-11:31 pm

1 stop21h 31m

$522

PortlandBarcelona

PDX - BCN

PDXBCN

Portland

Sun 11/9

9:50 am-9:35 am

2 stops38h 45m

Barcelona-El Prat

Sun 11/16

9:10 am-9:15 am

2 stops33h 05m

$523

PortlandBarcelona

PDX - BCN

PDXBCN

Portland

Wed 2/11

5:45 pm-7:45 pm

1 stop17h 00m

Barcelona-El Prat

Wed 2/18

10:40 am-10:57 pm

1 stop21h 17m

$526

PortlandBarcelona

PDX - BCN

PDXBCN

Portland

Mon 11/3

5:45 pm-10:30 pm

1 stop19h 45m

Barcelona-El Prat

Mon 11/17

6:40 am-3:55 pm

1 stop18h 15m

$531

SpokaneBarcelona

GEG - BCN

GEGBCN

Spokane

Fri 3/27

6:01 am-7:50 pm

2 stops29h 49m

Barcelona-El Prat

Tue 3/31

10:45 am-12:59 pm

1 stop35h 14m

$978

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Barcelona from

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

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 November. Flight prices, which tend to average around $667, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of November, then book flights to Barcelona-El Prat Airport from State of Washington during October instead. Flights to Barcelona-El Prat Airport in October, while not as cheap as those in November, still average around $672.

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 $1,924 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 $847 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 $715 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 68% 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

Direct flights

None
There are no direct flights from State of Washington to Barcelona-El Prat Airport. There are no popular flight routes from State of Washington to Barcelona-El Prat Airport.
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  • 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?

  • 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?

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
IcelandairPriceFrom $389Free CancellationRating
7.0
550 reviews
Search Icelandair flights
Scandinavian AirlinesPriceFrom $465Free CancellationRating
7.4
1,529 reviews
Search Scandinavian Airlines flights
Air CanadaPriceFrom $478Free CancellationRating
7.1
10,245 reviews
Search Air Canada flights
Aer LingusPriceFrom $498Free CancellationRating
7.2
1,314 reviews
Search Aer Lingus flights
United AirlinesPriceFrom $498Free CancellationRating
7.4
8,955 reviews
Search United Airlines flights
IberiaPriceFrom $507Free CancellationRating
7.0
2,973 reviews
Search Iberia flights
British AirwaysPriceFrom $554Free CancellationRating
6.7
7,430 reviews
Search British Airways flights
LufthansaPriceFrom $563Free CancellationRating
6.8
7,455 reviews
Search Lufthansa flights
KLMPriceFrom $574Free CancellationRating
7.8
1,394 reviews
Search KLM flights
American AirlinesPriceFrom $590Free CancellationRating
7.2
11,044 reviews
Search American Airlines 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
L'Hospitalet de Llobregat
Tarragona
Santa Susanna
Cambrils
Cadaques
Empuriabrava
Badalona
Pineda de Mar
Calella
Roses
Pals
Malgrat de Mar
Palafrugell
Tortosa

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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