Barcelona-El Prat

$300+ Cheap flights from Seattle (SEA) to Barcelona-El Prat (BCN)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/25. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — BCN
feb. 16 — feb. 231
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The best prices from Seattle/Tacoma Intl to Barcelona-El Prat are usually found in November or February, booked 31 days in advance, depart on a Monday or Tuesday and return on a Tuesday

Cheap flight deals from Seattle to Barcelona-El Prat

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Barcelona-El Prat (BCN). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated febrero 11, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$562
(Gotogate)

One-way from

$300
(Kiwi.com)

Popular in

July

Cheapest in

November

Average price

$688
Provider with most accurate pricing for Seattle/Tacoma Intl-Barcelona-El Prat flight deals.
Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Barcelona-El Prat flights.
From Seattle/Tacoma Intl to Barcelona-El Prat
One-way flight from Seattle/Tacoma Intl to Barcelona-El Prat
Highest demand for flights based on searches. 21% potential increase in price ($247 potential increase over avg. RT price).
Cheapest flight prices on average. 3% potential price decrease ($32 potential savings vs. average RT price).
Average for round-trip flights in February 2025

Find flight deals from Seattle to Barcelona-El Prat

Cheapest flights from Seattle to Barcelona-El Prat
Explore the most affordable flight options available from Seattle to Barcelona-El Prat. Find the lowest fares from popular airlines and budget airlines, with prices last updated on febrero 11, 2025.

This Mytrip deal was found by Cheapflights users on 2/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 3/184:10 pmSEA - BCN
1 stop22h 45mLufthansa
mar. 3/257:45 amBCN - SEA
1 stop14h 35mLufthansa
Deal found 2/10$566
This Gotogate deal was found by Cheapflights users on 2/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 3/286:05 amSEA - BCN
2 stops18h 45mAir Canada
vie. 4/41:15 pmBCN - SEA
1 stop17h 11mAir Canada
Deal found 2/11$567
This Mytrip deal was found by Cheapflights users on 2/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 3/184:10 pmSEA - BCN
1 stop14h 40mMultiple Airlines
mar. 3/2511:15 amBCN - SEA
2 stops35h 15mMultiple Airlines
Deal found 2/10$568
This United Airlines deal was found by Cheapflights users on 2/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 3/103:00 pmSEA - BCN
1 stop17h 15mUnited Airlines
lun. 3/1712:00 pmBCN - SEA
1 stop34h 20mUnited Airlines
Deal found 2/10$579
This oojo deal was found by Cheapflights users on 2/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 3/71:45 pmSEA - BCN
1 stop23h 50mBritish Airways
vie. 3/1411:35 amBCN - SEA
1 stop14h 20mBritish Airways
Deal found 2/9$604
This American Airlines deal was found by Cheapflights users on 2/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 12/77:32 amSEA - BCN
2 stops16h 28mAmerican Airlines
mié. 12/241:30 pmBCN - SEA
1 stop17h 14mAmerican Airlines
Deal found 2/10$625
This SWISS deal was found by Cheapflights users on 2/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 11/271:55 pmSEA - BCN
2 stops34h 05mSWISS
lun. 12/88:05 pmBCN - SEA
2 stops33h 49mSWISS
Deal found 2/11$627
This Gotogate deal was found by Cheapflights users on 2/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 9/144:20 pmSEA - BCN
1 stop16h 50mScandinavian Airlines
mar. 9/307:00 pmBCN - SEA
1 stop28h 00mScandinavian Airlines
Deal found 2/11$673
This Expedia deal was found by Cheapflights users on 2/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 4/267:00 pmSEA - BCN
1 stop34h 45mIcelandair
sáb. 5/33:45 pmBCN - SEA
1 stop13h 55mIcelandair
Deal found 2/9$674
This Turkish Airlines deal was found by Cheapflights users on 2/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 4/287:05 pmSEA - BCN
1 stop19h 05mTurkish Airlines
mar. 5/137:30 amBCN - SEA
1 stop18h 40mTurkish Airlines
Deal found 2/11$684
This Delta deal was found by Cheapflights users on 2/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 10/127:20 amSEA - BCN
2 stops18h 00mDelta
mié. 10/2212:20 pmBCN - SEA
2 stops19h 04mDelta
Deal found 2/9$721
This Finnair deal was found by Cheapflights users on 2/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 5/145:40 pmSEA - BCN
1 stop17h 25mFinnair
vie. 5/2310:45 amBCN - SEA
1 stop21h 24mFinnair
Deal found 2/9$783

Find flights from Seattle to Barcelona-El Prat within your budget

Customize your flight search to find flights from Seattle to Barcelona-El Prat 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, Cheapflights users made 2,558,603 searches. Data last updated febrero 11, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

sáb. 3/22

6:05 am-8:50 am

2 stops42h 45m

Barcelona-El Prat

lun. 3/31

10:20 am-12:25 pm

1 stop35h 05m

$562

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

mar. 3/18

4:10 pm-10:55 pm

1 stop22h 45m

Barcelona-El Prat

mar. 3/25

7:45 am-2:20 pm

1 stop14h 35m

$566

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

vie. 3/28

6:05 am-8:50 am

2 stops18h 45m

Barcelona-El Prat

vie. 4/4

1:15 pm-9:26 pm

1 stop17h 11m

$567

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

sáb. 3/22

7:11 pm-8:20 am

2 stops29h 09m

Barcelona-El Prat

lun. 3/31

12:15 pm-9:02 pm

2 stops41h 47m

$577

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

vie. 3/7

1:45 pm-10:35 pm

1 stop23h 50m

Barcelona-El Prat

vie. 3/14

11:35 am-5:55 pm

1 stop14h 20m

$604

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

sáb. 4/26

7:00 pm-2:45 pm

1 stop34h 45m

Barcelona-El Prat

sáb. 5/3

3:45 pm-8:40 pm

1 stop13h 55m

$674

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

lun. 4/28

7:05 pm-11:10 pm

1 stop19h 05m

Barcelona-El Prat

mar. 5/13

7:30 am-5:10 pm

1 stop18h 40m

$684

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

lun. 4/14

11:30 pm-9:20 am

1 stop24h 50m

Barcelona-El Prat

mié. 4/23

2:10 pm-10:44 pm

1 stop17h 34m

$790

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

mar. 3/25

9:48 am-12:10 am

2 stops30h 22m

$300

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

dom. 3/16

7:50 pm-7:05 pm

1 stop15h 15m

$444

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/10

Showing 1-10 of 21 results
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Compare providers for flights from Seattle to Barcelona-El Prat

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Seattle to Barcelona-El Prat in February.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*1 star
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
CheapfaremartPrice Accuracy-Trust Score*3 stars
GotogatePrice Accuracy3 starsTrust Score*3 stars
Kiwi.comPrice Accuracy3 starsTrust Score*2 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Seattle-Barcelona-El Prat Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Seattle-Barcelona-El Prat Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Seattle-Barcelona-El Prat Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Seattle-Barcelona-El Prat Airport flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Seattle-Barcelona-El Prat Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Seattle to Barcelona-El Prat

Have a flexible travel schedule? Discover the best time to fly to Barcelona-El Prat from Seattle with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Travel insights for flights from Seattle to Barcelona-El Prat

Get recent, data-driven insights about flights from Seattle to Barcelona-El Prat including ideal travel times, pricing trends, and more.

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

Use this chart to determine the optimal time to book a round-trip flight from Seattle to Barcelona-El Prat. Price data was last updated on February 7, 2025.

The price you pay for your flight from Seattle to Barcelona-El Prat Airport may vary depending on when you book. For the best chance of a lower fare, look to book 31 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from Seattle to Barcelona-El Prat Airport?

Currently, January is the cheapest month in which you can book a flight from Seattle to Barcelona-El Prat Airport (average of $523). Flying from Seattle to Barcelona-El Prat Airport in June is currently the most expensive (average of $1,095). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from SEA to BCN?

Find hourly flight availability from Seattle to Barcelona-El Prat. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated febrero 11, 2025.

A simple way to save on the total cost of your ticket is to fly from Seattle to Barcelona-El Prat Airport in the evening. If you’re flexible enough to do this you can expect to save up to 11% on your trip compared to booking a flight at noon.