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Cheap flights from Seattle to Barcelona from C$ 608

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 23/5. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult

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Find the cheapest flights from Seattle to Barcelona

Cheap round-trip flights

Enter your travel dates to find the best prices.
Condor Logo
6:05 p.m. - 4:05 p.m.
SEA
-
BCN
13h 00m
1 stop
Condor Logo
10:25 a.m. - 3:40 p.m.
BCN
-
SEA
14h 15m
1 stop
C$ 969Condor
Thu, 1 Oct - Wed, 14 Oct
Condor Logo
6:10 p.m. - 10:10 p.m.
SEA
-
BCN
19h 00m
1 stop
Condor Logo
10:25 a.m. - 3:40 p.m.
BCN
-
SEA
14h 15m
1 stop
C$ 970Condor
Mon, 3 Aug - Wed, 23 Sep
Scandinavian Airlines Logo
3:55 p.m. - 9:45 a.m.
SEA
-
BCN
32h 50m
2 stops
Scandinavian Airlines Logo
10:45 a.m. - 1:45 p.m.
BCN
-
SEA
36h 00m
2 stops
C$ 976Scandinavian Airlines
Fri, 2 Oct - Sat, 10 Oct
Multiple Airlines Logo
6:00 p.m. - 10:10 p.m.
SEA
-
BCN
19h 10m
1 stop
Multiple Airlines Logo
8:00 a.m. - 6:56 p.m.
BCN
-
SEA
19h 56m
2 stops
C$ 984Multiple Airlines
Sat, 10 Oct - Sat, 24 Oct
Condor Logo
5:40 p.m. - 4:05 p.m.
SEA
-
BCN
13h 25m
1 stop
Condor Logo
5:00 p.m. - 3:40 p.m.
BCN
-
SEA
31h 40m
1 stop
C$ 996Condor
Wed, 30 Sep - Mon, 12 Oct
Condor Logo
6:05 p.m. - 10:10 p.m.
SEA
-
BCN
19h 05m
1 stop
Condor Logo
8:00 a.m. - 4:00 p.m.
BCN
-
SEA
17h 00m
1 stop
C$ 1,005Condor
Thu, 4 Jun - Thu, 11 Jun
Scandinavian Airlines Logo
5:45 p.m. - 6:10 p.m.
SEA
-
BCN
39h 25m
2 stops
Scandinavian Airlines Logo
10:25 a.m. - 1:45 p.m.
BCN
-
SEA
36h 20m
1 stop
C$ 1,007Scandinavian Airlines
Tue, 8 Sep - Fri, 18 Sep
Scandinavian Airlines Logo
3:55 p.m. - 6:10 p.m.
SEA
-
BCN
17h 15m
1 stop
Scandinavian Airlines Logo
7:00 p.m. - 1:45 p.m.
BCN
-
SEA
27h 45m
1 stop
C$ 1,011Scandinavian Airlines
Sun, 13 Sep - Sat, 26 Sep
Multiple Airlines Logo
12:02 p.m. - 4:00 p.m.
SEA
-
BCN
18h 58m
2 stops
Multiple Airlines Logo
8:00 a.m. - 3:40 p.m.
BCN
-
SEA
16h 40m
1 stop
C$ 1,025Multiple Airlines
Tue, 29 Sep - Tue, 13 Oct
Multiple Airlines Logo
12:22 p.m. - 10:10 p.m.
SEA
-
BCN
24h 48m
2 stops
Multiple Airlines Logo
10:15 a.m. - 4:00 p.m.
BCN
-
SEA
14h 45m
1 stop
C$ 1,039Multiple Airlines
Sat, 12 Sep - Fri, 2 Oct

Condor flights from Seattle to Barcelona-El Prat Airport

Our best Condor deals on Seattle to Barcelona-El Prat Airport flight tickets
Condor
1 Oct
SEA6:05 p.m.Seattle/Tacoma Intl
13h 00m
1 stop
BCN4:05 p.m.Barcelona-El Prat
20 Oct
BCN10:25 a.m.Barcelona-El Prat
14h 15m
1 stop
SEA3:40 p.m.Seattle/Tacoma Intl
C$ 969
Condor
3 Aug
SEA6:10 p.m.Seattle/Tacoma Intl
19h 00m
1 stop
BCN10:10 p.m.Barcelona-El Prat
23 Sep
BCN10:25 a.m.Barcelona-El Prat
14h 15m
1 stop
SEA3:40 p.m.Seattle/Tacoma Intl
C$ 970
Condor
30 Sep
SEA5:40 p.m.Seattle/Tacoma Intl
13h 25m
1 stop
BCN4:05 p.m.Barcelona-El Prat
12 Oct
BCN5:00 p.m.Barcelona-El Prat
31h 40m
1 stop
SEA3:40 p.m.Seattle/Tacoma Intl
C$ 996

TAP AIR PORTUGAL flights from Seattle to Barcelona-El Prat Airport

Our best TAP AIR PORTUGAL deals on Seattle to Barcelona-El Prat Airport flight tickets
TAP AIR PORTUGAL
13 May
SEA7:25 a.m.Seattle/Tacoma Intl
26h 55m
3 stops
BCN7:20 p.m.Barcelona-El Prat
25 May
BCN3:00 p.m.Barcelona-El Prat
28h 17m
2 stops
SEA10:17 a.m.Seattle/Tacoma Intl
C$ 4,169
TAP AIR PORTUGAL
16 May
SEA11:30 a.m.Seattle/Tacoma Intl
25h 20m
3 stops
BCN9:50 p.m.Barcelona-El Prat
23 May
BCN3:00 p.m.Barcelona-El Prat
28h 17m
2 stops
SEA10:17 a.m.Seattle/Tacoma Intl
C$ 4,196
TAP AIR PORTUGAL
16 May
SEA11:30 a.m.Seattle/Tacoma Intl
25h 20m
3 stops
BCN9:50 p.m.Barcelona-El Prat
23 May
BCN3:00 p.m.Barcelona-El Prat
28h 17m
2 stops
SEA10:17 a.m.Seattle/Tacoma Intl
C$ 4,197

momondo Fare Finder

 
Customize your flight search to find flights from Seattle 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 96,600 searches. Data last updated 8 May 2026.
Use the filters below to find and compare flights from Seattle to Barcelona-El Prat Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Thu 1/10

6:05 p.m.-4:05 p.m.

1 stop13h 00m

Barcelona-El Prat

Wed 14/10

10:25 a.m.-3:40 p.m.

1 stop14h 15m

C$ 969

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Mon 3/8

6:10 p.m.-10:10 p.m.

1 stop19h 00m

Barcelona-El Prat

Wed 23/9

10:25 a.m.-3:40 p.m.

1 stop14h 15m

C$ 970

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Fri 2/10

3:55 p.m.-9:45 a.m.

2 stops32h 50m

Barcelona-El Prat

Sat 10/10

10:45 a.m.-1:45 p.m.

2 stops36h 00m

C$ 976

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Sat 10/10

6:00 p.m.-10:10 p.m.

1 stop19h 10m

Barcelona-El Prat

Sat 24/10

8:00 a.m.-6:56 p.m.

2 stops19h 56m

C$ 984

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Wed 30/9

5:40 p.m.-4:05 p.m.

1 stop13h 25m

Barcelona-El Prat

Mon 12/10

5:00 p.m.-3:40 p.m.

1 stop31h 40m

C$ 996

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Thu 4/6

6:05 p.m.-10:10 p.m.

1 stop19h 05m

Barcelona-El Prat

Thu 11/6

8:00 a.m.-4:00 p.m.

1 stop17h 00m

C$ 1,005

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Tue 8/9

5:45 p.m.-6:10 p.m.

2 stops39h 25m

Barcelona-El Prat

Fri 18/9

10:25 a.m.-1:45 p.m.

1 stop36h 20m

C$ 1,007

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Sun 13/9

3:55 p.m.-6:10 p.m.

1 stop17h 15m

Barcelona-El Prat

Sat 26/9

7:00 p.m.-1:45 p.m.

1 stop27h 45m

C$ 1,011

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Tue 29/9

12:02 p.m.-4:00 p.m.

2 stops18h 58m

Barcelona-El Prat

Tue 13/10

8:00 a.m.-3:40 p.m.

1 stop16h 40m

C$ 1,025

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Sat 12/9

12:22 p.m.-10:10 p.m.

2 stops24h 48m

Barcelona-El Prat

Fri 2/10

10:15 a.m.-4:00 p.m.

1 stop14h 45m

C$ 1,039

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 Seattle 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 typical price of a round-trip flight between Seattle and Barcelona-El Prat Airport?

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

The cheapest month to fly to Barcelona-El Prat Airport from Seattle is in February. Flight prices, which tend to average around C$ 664, are often lower during this time because this is during the off-season. If you are unable to visit Barcelona-El Prat Airport during the month of February, then departing from Seattle during the month January is also very affordable. Most momondo users find prices during this month for around C$ 674.

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

You are more likely to see cheaper flights to Barcelona-El Prat Airport from Seattle when booking weeks ahead of your departure date. In general, you can expect to find flights to Barcelona-El Prat Airport for around C$ 1,046 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 Seattle for as low as C$ 927 on momondo.

Can stopping save me money on Seattle to Barcelona-El Prat Airport flights?

You could potentially save up to 36% on your flight if you consider stops on a Seattle to Barcelona-El Prat Airport flight.

How have Seattle to Barcelona-El Prat Airport flight prices changed over time?

As of May 2026, prices for Seattle to Barcelona-El Prat Airport flights are approximately 17% more expensive when compared to flights at the same time last year.

When to book flights from Seattle to Barcelona-El Prat Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Seattle to Barcelona-El Prat Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Seattle to Barcelona-El Prat Airport (SEA to BCN) flight deals and tips

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

Fastest flight time

30h 45m

Direct flights

Wed, Fri and Sun
The fastest flight from Seattle to Barcelona-El Prat Airport takes 30h 45m
Direct flights go from Seattle to Barcelona-El Prat Airport on Wednesday, Friday and Sunday. There are no airlines offering direct flights.
Search flight deals

Frequently asked questions about flying from Seattle to Barcelona-El Prat Airport

  • How far is Seattle/Tacoma Intl to Barcelona-El Prat by plane?

    There are 8711.2 km between Seattle/Tacoma Intl and Barcelona-El Prat. In terms of flight time, this usually takes a little over 30h 45m.

  • When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Barcelona-El Prat Airport?

    Prices for flights from Seattle/Tacoma Intl Airport to Barcelona-El Prat Airport were last updated today.

  • How old do you have to be to fly from Seattle/Tacoma Intl Airport to Barcelona-El Prat Airport?

    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-El Prat Airport.

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

    The travel and health documents required for your trip to Barcelona-El Prat Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Barcelona-El Prat Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular plane model from Seattle to Barcelona-El Prat Airport?

Travelling to a place near Barcelona?

Book flights to Barcelona if you plan to visit one of these locations
El Prat de Llobregat
Lloret de Mar
L'Hospitalet de Llobregat
Sitges
Tarragona
Cadaques
Calella de Palafrugell
Tossa de Mar
Malgrat de Mar
Badalona
Castelldefels
Calella
Llafranc
Pineda de Mar
Salou

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Seattle to Barcelona for you.

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?

momondo helps you find the best flight between Seattle and Barcelona by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

Yes momondo offers price alerts on flights to Barcelona from Seattle. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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