How long is the flight from Barcelona-El Prat Airport to Seattle?

Airlines like Scandinavian Airlines fly from Barcelona-El Prat Airport to Seattle in about 36h 35m. The time it takes to get you to your destination can typically vary by up to . Barcelona-El Prat Airport and Seattle are separated by a distance of 5421 mi.

What are the cheapest airlines flying from Barcelona-El Prat Airport to Seattle round-trip?

According to our current data, KLM ($677), Delta ($686), and British Airways ($768) offers the cheapest pricing from Barcelona-El Prat Airport to Seattle. Users have found that KLM is 22% cheaper than the other options available to this destination.

What is the cheapest day to fly from Barcelona-El Prat Airport to Seattle?

Travelers seeking maximum savings on their Barcelona-El Prat Airport to Seattle flight should consider departing on Tuesday mornings when fares are most often at their lowest. Sunday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

In terms of precipitation, rainfall in Seattle ranges from 0.7 - 6.6 inches per month. November is typically the wettest month, when rainfall can reach 6.6 in. July is typically the driest time to visit Seattle when rainfall is around 0.7 in.

If weather is an important factor for your trip to Seattle, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 66.2 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 41.0 F).

What are the most popular airlines that fly from Barcelona-El Prat Airport to Seattle?

British Airways, Delta and KLM are the most popular airlines when flying from Barcelona-El Prat Airport to Seattle.

What is the cheapest day to fly round-trip from Barcelona-El Prat Airport to Seattle?

Flights from Barcelona-El Prat Airport to Seattle are found to be more expensive on Saturday. This shouldn't discourage you from searching as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Seattle.

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

To save up to 154% on this flight, we recommend booking at least 61 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from Barcelona-El Prat Airport to Seattle from $790 1-2 weeks out and tickets from $1,304 for flights departing within the next 72 hours.

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

Due to multiple factors, expect to potentially pay more when booking in June. For low rates, March can be a great choice for travel to Seattle. Flights to Seattle from Barcelona-El Prat Airport in March are about $875 on average during March, but can be found for as low as $636.

What airport do you fly into for flights to Seattle from Barcelona-El Prat?

Seattle/Tacoma Intl (SEA) is the airport you will fly into if you book a flight from Barcelona-El Prat to Seattle. You should not have trouble finding flights to Seattle/Tacoma Intl from Barcelona-El Prat; the airport handles an average of 0 inbound flights from Barcelona-El Prat per day. You should also have plenty of airline options to choose from since 3 airlines have flights to the Seattle airport from Barcelona-El Prat. It is only a 11.4 mi journey from Seattle/Tacoma Intl (SEA) to Seattle’s city center.

Can I find deals for flights from Barcelona-El Prat to Seattle that include hotel bookings?

Yes. In addition to deals on Barcelona-El Prat to Seattle flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Barcelona-El Prat to Seattle?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Barcelona-El Prat to Seattle.

Can I find deals for business class flights from Barcelona-El Prat to Seattle?

Yes. Cheapflights offers flight deals from Barcelona-El Prat to Seattle by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$339+ Cheap Flights from Barcelona-El Prat Airport to Seattle

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Find cheap flights from Barcelona-El Prat to Seattle with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from Barcelona-El Prat to Seattle/Tacoma Intl are usually found in March or May, booked 60 days in advance, depart on a Tuesday or Saturday and return on a Monday

Cheap flight deals from Barcelona-El Prat to Seattle

Round-trip from	$564 (lol.travel)
One-way from	$339 (Kiwi.com)
Popular in	June
Cheapest in	March
Average price	$924

From Barcelona-El Prat to Seattle/Tacoma Intl

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One-way flight from Barcelona-El Prat to Seattle/Tacoma Intl

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Highest demand for flights based on searches. 5% potential increase in price ($48 potential increase over avg. RT price).

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Cheapest flight prices on average. 1% potential price decrease ($13 potential savings vs. average RT price).

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Average for round-trip flights in August 2025

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Find flight deals from Barcelona-El Prat to Seattle

Cheapest flights from Barcelona-El Prat to Seattle
Explore the most affordable flight options available from Barcelona-El Prat to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 20, 2025.

Thu 10/210:25 amBCN - SEA

1 stop36h 35mScandinavian Airlines

Fri 10/174:20 pmSEA - BCN

1 stop16h 50mScandinavian Airlines

Deal found 8/20

$564

Thu 10/29:20 pmBCN - SEA

2 stops25h 40mMultiple Airlines

Fri 10/174:20 pmSEA - BCN

3 stops31h 20mMultiple Airlines

Deal found 8/19

$627

Best flights from Barcelona-El Prat to Seattle
Discover carefully curated flight deals from Barcelona-El Prat to Seattle that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 20, 2025.

Thu 10/210:25 amBCN - SEA

1 stop36h 35mScandinavian Airlines

Fri 10/174:20 pmSEA - BCN

1 stop16h 50mScandinavian Airlines

Deal found 8/20

$564

Last-minute flights from Barcelona-El Prat to Seattle
Discover last-minute flight deals from Barcelona-El Prat to Seattle. Data last updated August 20, 2025 and is based on user searches.

Mon 9/17:10 pmBCN - SEA

2 stops28h 55mMultiple Airlines

Tue 9/95:05 pmSEA - BCN

2 stops21h 30mMultiple Airlines

Deal found 8/19

$706

Mon 9/13:45 pmBCN - SEA

1 stop28h 40mIcelandair

Tue 9/303:45 pmSEA - BCN

1 stop14h 00mIcelandair

Deal found 8/18

$726

Mon 9/112:10 pmBCN - SEA

1 stop17h 35mAir Canada

Tue 9/305:30 amSEA - BCN

2 stops17h 20mAir Canada

Deal found 8/18

$794

Thu 9/116:30 pmBCN - SEA

1 stop34h 24mMultiple Airlines

Sat 9/279:39 pmSEA - BCN

2 stops37h 01mMultiple Airlines

Deal found 8/19

$718

Thu 9/1111:00 amBCN - SEA

1 stop15h 50mAer Lingus

Sat 9/277:35 pmSEA - BCN

1 stop17h 50mAer Lingus

Deal found 8/19

$775

Mon 9/156:50 amBCN - SEA

1 stop14h 05mLufthansa

Mon 9/222:00 pmSEA - BCN

1 stop14h 15mLufthansa

Deal found 8/18

$777

Mon 9/156:50 amBCN - SEA

2 stops16h 26mAir Canada

Mon 9/225:30 amSEA - BCN

2 stops17h 20mAir Canada

Deal found 8/18

$783

Wed 9/178:00 amBCN - SEA

2 stops19h 36mAir Canada

Wed 9/245:30 amSEA - BCN

2 stops17h 20mAir Canada

Deal found 8/18

$764

Sat 9/278:00 amBCN - SEA

2 stops19h 31mUnited Airlines

Sat 10/1811:40 pmSEA - BCN

1 stop28h 35mUnited Airlines

Deal found 8/19

$790

One-way flights from Barcelona-El Prat to Seattle
Search for one-way flight options from Barcelona-El Prat to Seattle. Find affordable one-way fares based on user searches. Data last updated August 20, 2025.

Tue 11/1810:00 amBCN - SEA

2 stops33h 25mMultiple Airlines

Deal found 8/18

$339

Mon 11/179:35 pmBCN - SEA

2 stops46h 05mMultiple Airlines

Deal found 8/19

$340

Fri 11/143:10 pmBCN - SEA

2 stops28h 15mMultiple Airlines

Deal found 8/18

$351

Sun 11/92:20 pmBCN - SEA

2 stops29h 03mWestJet

Deal found 8/19

$361

Wed 9/1011:25 amBCN - SEA

2 stops32h 09mMultiple Airlines

Deal found 8/18

$374

Thu 11/202:20 pmBCN - SEA

3 stops53h 03mMultiple Airlines

Deal found 8/19

$384

Wed 10/159:40 pmBCN - SEA

3 stops50h 36mMultiple Airlines

Deal found 8/18

$387

Fri 11/217:50 amBCN - SEA

3 stops35h 33mMultiple Airlines

Deal found 8/19

$391

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

BarcelonaSeattle

BCN - SEA

BCNSEA

Barcelona-El Prat

Thu 10/2

10:25 am-2:00 pm

1 stop36h 35m

Seattle/Tacoma Intl

Fri 10/17

4:20 pm-6:10 pm

1 stop16h 50m

$564

BarcelonaSeattle

BCN - SEA

BCNSEA

Barcelona-El Prat

Tue 11/18

10:00 am-10:25 am

2 stops33h 25m

$339

BarcelonaSeattle

BCN - SEA

BCNSEA

Barcelona-El Prat

Mon 11/17

9:35 pm-10:40 am

2 stops46h 05m

$340

BarcelonaSeattle

BCN - SEA

BCNSEA

Barcelona-El Prat

Fri 11/14

3:10 pm-10:25 am

2 stops28h 15m

$351

BarcelonaSeattle

BCN - SEA

BCNSEA

Barcelona-El Prat

Sun 11/9

2:20 pm-10:23 am

2 stops29h 03m

$361

BarcelonaSeattle

BCN - SEA

BCNSEA

Barcelona-El Prat

Wed 9/10

11:25 am-10:34 am

2 stops32h 09m

$374

BarcelonaSeattle

BCN - SEA

BCNSEA

Barcelona-El Prat

Thu 11/20

2:20 pm-10:23 am

3 stops53h 03m

$384

BarcelonaSeattle

BCN - SEA

BCNSEA

Barcelona-El Prat

Wed 10/15

9:40 pm-3:16 pm

3 stops50h 36m

$387

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/18

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

Have a flexible travel schedule? Discover the best time to fly to Seattle from Barcelona-El Prat 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.

Cheapflights Insights

Everything you need to know about your flight from Barcelona-El Prat Airport to Seattle

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

The price you pay for your flight from Barcelona-El Prat Airport to Seattle may vary depending on when you book. For the best chance of a lower fare, look to book 60 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 Barcelona-El Prat Airport to Seattle?

Currently, January is the cheapest month in which you can book a flight from Barcelona-El Prat Airport to Seattle (average of $238). Flying from Barcelona-El Prat Airport to Seattle in June is currently the most expensive (average of $388). 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 BCN to SEA?

Unlike at noon, when flights are generally more expensive, you can save up to 29% on flights from Barcelona-El Prat Airport to Seattle by exploring options for tickets in the morning.

Reviews of airlines servicing Seattle

See what other customers who have flown with Delta, KLM, and British Airways from Barcelona-El Prat Airport to Seattle have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very good

7,982 reviews

Reviews

1 / 20

6.0

Good

Morgan Rae,Aug 2025

BRU - JFK

Typically I choose delta because they do a great job but this time the flight attendant in my zone was very rude and didnt offer the same treatment as she did to others

Delta

8.0

Very good

7,982 reviews

Delta

8.0

Very good

7,982 reviews

Reviews

1 / 20

6.0

Good

Morgan Rae,Aug 2025

BRU - JFK

Typically I choose delta because they do a great job but this time the flight attendant in my zone was very rude and didnt offer the same treatment as she did to others

KLM

7.8

Good

1,388 reviews

Delta

8.0

Very good

7,982 reviews

Reviews

1 / 20

6.0

Good

Morgan Rae,Aug 2025

BRU - JFK

Typically I choose delta because they do a great job but this time the flight attendant in my zone was very rude and didnt offer the same treatment as she did to others

British Airways

6.7

Okay

7,289 reviews

Delta

8.0

Very good

7,982 reviews

Reviews

1 / 20

6.0

Good

Morgan Rae,Aug 2025

BRU - JFK

Typically I choose delta because they do a great job but this time the flight attendant in my zone was very rude and didnt offer the same treatment as she did to others

Related info for your journey

What airport do you fly into for flights to Seattle from Barcelona-El Prat?
Seattle/Tacoma Intl (SEA) is the airport you will fly into if you book a flight from Barcelona-El Prat to Seattle. You should not have trouble finding flights to Seattle/Tacoma Intl from Barcelona-El Prat; the airport handles an average of 0 inbound flights from Barcelona-El Prat per day. You should also have plenty of airline options to choose from since 3 airlines have flights to the Seattle airport from Barcelona-El Prat. It is only a 11.4 mi journey from Seattle/Tacoma Intl (SEA) to Seattle’s city center.
How long is the flight from Barcelona-El Prat Airport to Seattle?
Airlines like Scandinavian Airlines fly from Barcelona-El Prat Airport to Seattle in about 36h 35m. The time it takes to get you to your destination can typically vary by up to . Barcelona-El Prat Airport and Seattle are separated by a distance of 5421 mi.
What are the cheapest airlines flying from Barcelona-El Prat Airport to Seattle round-trip?
According to our current data, KLM ($677), Delta ($686), and British Airways ($768) offers the cheapest pricing from Barcelona-El Prat Airport to Seattle. Users have found that KLM is 22% cheaper than the other options available to this destination.
Can I find deals for flights from Barcelona-El Prat to Seattle that include hotel bookings?
Yes. In addition to deals on Barcelona-El Prat to Seattle flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Barcelona-El Prat to Seattle?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Barcelona-El Prat to Seattle.
Can I find deals for business class flights from Barcelona-El Prat to Seattle?
Yes. Cheapflights offers flight deals from Barcelona-El Prat to Seattle by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Barcelona-El Prat Airport to Seattle?
Currently, January is the cheapest month in which you can book a flight from Barcelona-El Prat Airport to Seattle (average of $238). Flying from Barcelona-El Prat Airport to Seattle in June is currently the most expensive (average of $388). 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.

See more FAQs

SeaTac

Tukwila

Tacoma

Lakewood

Lacey

Ocean Shores

Lynnwood

Leavenworth

Renton

Olympia

Kent

Cle Elum

Puyallup

Chehalis

Kirkland

Issaquah

Aberdeen

Shoreline

Federal Way

Shelton

Browse thousands of different options on Cheapflights for your next trip

Other flights to Seattle

Top 3 airlines flying from Barcelona-El Prat to Seattle

Airline	Cheapest	Average	Flexibility	On-time
KLM	Cheapest$677	Average$1,062	FlexibilityNo cancel fee	On-time75%
Delta	Cheapest$686	Average$801	FlexibilityNo cancel fee	On-timeN/A
British Airways	Cheapest$768	Average$1,019	FlexibilityNo cancel fee	On-time70%

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$339+ Cheap flights from Barcelona-El Prat (BCN) to Seattle (SEA)

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 11/18. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Barcelona-El Prat to Seattle with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheapflights Tip: The best prices from Barcelona-El Prat to Seattle/Tacoma Intl are usually found in March or May, booked 60 days in advance, depart on a Tuesday or Saturday and return on a Monday

Cheap flight deals from Barcelona-El Prat to Seattle

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Barcelona-El Prat to Seattle

Cheapest flights from Barcelona-El Prat to SeattleExplore the most affordable flight options available from Barcelona-El Prat to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 20, 2025.

Explore the most affordable flight options available from Barcelona-El Prat to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 20, 2025.

Cheapflights Fare Finder

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

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

Have a flexible travel schedule? Discover the best time to fly to Seattle from Barcelona-El Prat with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Barcelona-El Prat Airport to Seattle

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

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

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

Reviews of airlines servicing Seattle

See what other customers who have flown with Delta, KLM, and British Airways from Barcelona-El Prat Airport to Seattle have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Barcelona-El Prat to Seattle. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What airport do you fly into for flights to Seattle from Barcelona-El Prat?

How long is the flight from Barcelona-El Prat Airport to Seattle?

What are the cheapest airlines flying from Barcelona-El Prat Airport to Seattle round-trip?

Can I find deals for flights from Barcelona-El Prat to Seattle that include hotel bookings?

How can I find direct flights from Barcelona-El Prat to Seattle?

Can I find deals for business class flights from Barcelona-El Prat to Seattle?

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

Traveling to a place near Seattle?

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Alternative routes for Barcelona-El Prat to Seattle

See prices for flight routes from nearby airports that may be better suited for you.

Top 3 airlines flying from Barcelona-El Prat to Seattle

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Cheapest flights from Barcelona-El Prat to Seattle
Explore the most affordable flight options available from Barcelona-El Prat to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 20, 2025.