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

According to our current data, Scandinavian Airlines ($560), Air Canada ($627), and Lufthansa ($635) offers the cheapest pricing from Barcelona-El Prat Airport to Seattle. Users have found that Scandinavian Airlines is 35% cheaper than the other options available to this destination.

What are the cheapest airlines to fly from Barcelona-El Prat Airport to Seattle one-way?

For one-way options, check prices for Icelandair. According to our data, you can fly for as low as $453. Users have also found prices from $567 and $592 on TAP AIR PORTUGAL and Aer Lingus, respectively.

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.

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

Air France, British Airways and Delta 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 July. 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 $865 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 4 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.

$318+ Flights from Barcelona-El Prat Airport to Seattle

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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

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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	$560 (lol.travel)
One-way from	$318 (Kiwi.com)
Popular in	July
Cheapest in	March
Average price	$1,024

From Barcelona-El Prat to Seattle/Tacoma Intl

Search Deals

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

Search Deals

Highest demand for flights based on searches. 13% potential increase in price ($130 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 1% potential price decrease ($16 potential savings vs. average RT price).

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Average for round-trip flights in June 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 June 12, 2025.

Sat 8/307:00 pmBCN - SEA

1 stop27h 50mScandinavian Airlines

Mon 9/84:00 pmSEA - BCN

1 stop17h 10mScandinavian Airlines

Deal found 6/11

$560

Thu 9/116:30 pmBCN - SEA

1 stop25h 04mMultiple Airlines

Thu 10/23:39 pmSEA - BCN

2 stops35h 46mMultiple Airlines

Deal found 6/12

$603

Thu 9/116:50 amBCN - SEA

2 stops16h 26mAir Canada

Thu 10/25:30 amSEA - BCN

2 stops17h 20mAir Canada

Deal found 6/11

$627

Thu 10/166:50 amBCN - SEA

1 stop14h 05mLufthansa

Sun 10/264:10 pmSEA - BCN

1 stop17h 25mLufthansa

Deal found 6/10

$635

Thu 9/116:50 amBCN - SEA

2 stops16h 26mUnited Airlines

Thu 10/25:00 amSEA - BCN

1 stop24h 00mUnited Airlines

Deal found 6/10

$654

Thu 9/112:00 pmBCN - SEA

1 stop17h 04mBritish Airways

Thu 10/21:30 pmSEA - BCN

1 stop13h 45mBritish Airways

Deal found 6/10

$669

Mon 8/258:00 pmBCN - SEA

2 stops35h 59mSWISS

Sat 9/64:20 pmSEA - BCN

1 stop12h 45mSWISS

Deal found 6/11

$713

Fri 7/187:50 amBCN - SEA

1 stop35h 45mTurkish Airlines

Mon 8/47:10 pmSEA - BCN

1 stop19h 00mTurkish Airlines

Deal found 6/10

$911

Mon 8/2510:35 amBCN - SEA

2 stops20h 01mIberia

Sat 9/67:49 amSEA - BCN

1 stop17h 21mIberia

Deal found 6/10

$960

Mon 8/42:10 pmBCN - SEA

1 stop17h 38mDelta

Fri 8/296:00 amSEA - BCN

2 stops19h 20mDelta

Deal found 6/11

$991

Tue 10/2111:00 amBCN - SEA

1 stop15h 50mAer Lingus

Tue 10/2111:55 pmSEA - BCN

2 stops25h 25mAer Lingus

Deal found 6/11

$1,078

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 June 12, 2025.

Sat 8/307:00 pmBCN - SEA

1 stop27h 50mScandinavian Airlines

Mon 9/84:00 pmSEA - BCN

1 stop17h 10mScandinavian Airlines

Deal found 6/11

$560

Thu 9/116:30 pmBCN - SEA

1 stop25h 04mMultiple Airlines

Thu 10/23:39 pmSEA - BCN

2 stops35h 46mMultiple Airlines

Deal found 6/12

$603

Thu 9/116:50 amBCN - SEA

2 stops16h 26mAir Canada

Thu 10/25:30 amSEA - BCN

2 stops17h 20mAir Canada

Deal found 6/11

$627

Thu 10/166:50 amBCN - SEA

1 stop14h 05mLufthansa

Sun 10/264:10 pmSEA - BCN

1 stop17h 25mLufthansa

Deal found 6/10

$635

Thu 9/116:50 amBCN - SEA

2 stops16h 26mUnited Airlines

Thu 10/25:00 amSEA - BCN

1 stop24h 00mUnited Airlines

Deal found 6/10

$654

Thu 9/112:00 pmBCN - SEA

1 stop17h 04mBritish Airways

Thu 10/21:30 pmSEA - BCN

1 stop13h 45mBritish Airways

Deal found 6/10

$669

Mon 8/258:00 pmBCN - SEA

2 stops35h 59mSWISS

Sat 9/64:20 pmSEA - BCN

1 stop12h 45mSWISS

Deal found 6/11

$713

Fri 7/187:50 amBCN - SEA

1 stop35h 45mTurkish Airlines

Mon 8/47:10 pmSEA - BCN

1 stop19h 00mTurkish Airlines

Deal found 6/10

$911

Mon 8/2510:35 amBCN - SEA

2 stops20h 01mIberia

Sat 9/67:49 amSEA - BCN

1 stop17h 21mIberia

Deal found 6/10

$960

Mon 8/42:10 pmBCN - SEA

1 stop17h 38mDelta

Fri 8/296:00 amSEA - BCN

2 stops19h 20mDelta

Deal found 6/11

$991

Tue 10/2111:00 amBCN - SEA

1 stop15h 50mAer Lingus

Tue 10/2111:55 pmSEA - BCN

2 stops25h 25mAer Lingus

Deal found 6/11

$1,078

Last-minute flights from Barcelona-El Prat to Seattle
Discover last-minute flight deals from Barcelona-El Prat to Seattle. Data last updated June 12, 2025 and is based on user searches.

Wed 6/183:45 pmBCN - SEA

1 stop28h 40mIcelandair

Sun 6/2910:57 pmSEA - BCN

2 stops54h 48mIcelandair

Deal found 6/11

$3,390

Wed 6/187:50 amBCN - SEA

1 stop35h 45mTurkish Airlines

Sun 6/297:10 pmSEA - BCN

1 stop19h 00mTurkish Airlines

Deal found 6/11

$3,497

Fri 6/206:50 amBCN - SEA

2 stops24h 26mUnited Airlines

Thu 6/268:00 amSEA - BCN

1 stop15h 20mUnited Airlines

Deal found 6/10

$900

Fri 6/203:15 pmBCN - SEA

1 stop16h 27mLufthansa

Thu 6/262:15 pmSEA - BCN

1 stop34h 20mLufthansa

Deal found 6/12

$1,117

Fri 6/2012:10 pmBCN - SEA

2 stops19h 06mAir Canada

Thu 6/267:20 amSEA - BCN

2 stops19h 35mAir Canada

Deal found 6/11

$1,156

Fri 6/201:20 pmBCN - SEA

2 stops18h 05mDelta

Thu 6/267:40 amSEA - BCN

2 stops17h 40mDelta

Deal found 6/12

$1,230

Sun 6/2210:30 pmBCN - SEA

3 stops43h 51mMultiple Airlines

Wed 6/258:40 amSEA - BCN

3 stops31h 50mMultiple Airlines

Deal found 6/11

$1,164

Thu 6/2610:15 amBCN - SEA

2 stops19h 26mAir Canada

Wed 7/95:30 amSEA - BCN

2 stops17h 20mAir Canada

Deal found 6/10

$732

Thu 6/2612:10 pmBCN - SEA

1 stop17h 31mUnited Airlines

Wed 7/97:20 amSEA - BCN

1 stop15h 30mUnited Airlines

Deal found 6/10

$777

Thu 6/269:40 amBCN - SEA

2 stops17h 56mSWISS

Wed 7/91:45 pmSEA - BCN

2 stops24h 50mSWISS

Deal found 6/10

$791

Thu 6/261:15 pmBCN - SEA

1 stop30h 36mMultiple Airlines

Wed 7/97:20 amSEA - BCN

1 stop15h 30mMultiple Airlines

Deal found 6/10

$807

Thu 6/266:00 amBCN - SEA

2 stops24h 53mTAP AIR PORTUGAL

Wed 7/911:43 amSEA - BCN

2 stops22h 37mTAP AIR PORTUGAL

Deal found 6/11

$2,037

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 June 12, 2025.

Mon 9/86:30 pmBCN - SEA

1 stop27h 00mMultiple Airlines

Deal found 6/11

$318

Fri 10/173:45 pmBCN - SEA

2 stops52h 51mIcelandair

Deal found 6/11

$453

Thu 11/66:45 amBCN - SEA

2 stops23h 34mTAP AIR PORTUGAL

Deal found 6/10

$567

Thu 11/69:05 pmBCN - SEA

1 stop30h 15mAer Lingus

Deal found 6/11

$592

Wed 10/82:25 pmBCN - SEA

2 stops55h 08mWestJet

Deal found 6/11

$606

Wed 7/912:00 pmBCN - SEA

1 stop31h 35mTurkish Airlines

Deal found 6/11

$664

Tue 7/227:00 pmBCN - SEA

1 stop27h 50mScandinavian Airlines

Deal found 6/9

$780

Wed 7/309:05 amBCN - SEA

1 stop16h 54mLufthansa

Deal found 6/12

$784

Sun 10/56:20 amBCN - SEA

1 stop14h 30mKLM

Deal found 6/11

$812

Thu 11/2711:10 amBCN - SEA

1 stop14h 45mBritish Airways

Deal found 6/10

$842

Mon 8/186:00 amBCN - SEA

2 stops25h 42mSWISS

Deal found 6/11

$860

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

Sat 8/30

7:00 pm-1:50 pm

1 stop27h 50m

Seattle/Tacoma Intl

Mon 9/8

4:00 pm-6:10 pm

1 stop17h 10m

$560

BarcelonaSeattle

BCN - SEA

BCNSEA

Barcelona-El Prat

Thu 9/11

6:30 pm-10:34 am

1 stop25h 04m

Seattle/Tacoma Intl

Thu 10/2

3:39 pm-12:25 pm

2 stops35h 46m

$603

BarcelonaSeattle

BCN - SEA

BCNSEA

Barcelona-El Prat

Thu 9/11

6:50 am-2:16 pm

2 stops16h 26m

Seattle/Tacoma Intl

Thu 10/2

5:30 am-7:50 am

2 stops17h 20m

$627

BarcelonaSeattle

BCN - SEA

BCNSEA

Barcelona-El Prat

Thu 10/16

6:50 am-11:55 am

1 stop14h 05m

Seattle/Tacoma Intl

Sun 10/26

4:10 pm-5:35 pm

1 stop17h 25m

$635

BarcelonaSeattle

BCN - SEA

BCNSEA

Barcelona-El Prat

Thu 9/11

6:50 am-2:16 pm

2 stops16h 26m

Seattle/Tacoma Intl

Thu 10/2

5:00 am-2:00 pm

1 stop24h 00m

$654

BarcelonaSeattle

BCN - SEA

BCNSEA

Barcelona-El Prat

Thu 9/11

2:00 pm-10:04 pm

1 stop17h 04m

Seattle/Tacoma Intl

Thu 10/2

1:30 pm-12:15 pm

1 stop13h 45m

$669

BarcelonaSeattle

BCN - SEA

BCNSEA

Barcelona-El Prat

Mon 8/25

8:00 pm-10:59 pm

2 stops35h 59m

Seattle/Tacoma Intl

Sat 9/6

4:20 pm-2:05 pm

1 stop12h 45m

$713

BarcelonaSeattle

BCN - SEA

BCNSEA

Barcelona-El Prat

Fri 7/18

7:50 am-10:35 am

1 stop35h 45m

Seattle/Tacoma Intl

Mon 8/4

7:10 pm-11:10 pm

1 stop19h 00m

$911

BarcelonaSeattle

BCN - SEA

BCNSEA

Barcelona-El Prat

Mon 8/25

10:35 am-9:36 pm

2 stops20h 01m

Seattle/Tacoma Intl

Sat 9/6

7:49 am-10:10 am

1 stop17h 21m

$960

BarcelonaSeattle

BCN - SEA

BCNSEA

Barcelona-El Prat

Mon 8/4

2:10 pm-10:48 pm

1 stop17h 38m

Seattle/Tacoma Intl

Fri 8/29

6:00 am-10:20 am

2 stops19h 20m

$991

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/11

Showing 1-10 of 22 results

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 July is currently the most expensive (average of $391). 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.

Rainfall in Seattle by month

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.

Temperature in Seattle by month

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).

Reviews of airlines servicing Seattle

To help decide which airline to fly from Barcelona to Seattle, see what other customers have to say about Delta, KLM and SWISS. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very good

7,950 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Delta

8.0

Very good

7,950 reviews

Delta

8.0

Very good

7,950 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

KLM

7.8

Good

1,358 reviews

Delta

8.0

Very good

7,950 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

SWISS

7.5

Good

1,623 reviews

Delta

8.0

Very good

7,950 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

United Airlines

7.4

Good

8,790 reviews

Delta

8.0

Very good

7,950 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Turkish Airlines

7.3

Good

3,848 reviews

Delta

8.0

Very good

7,950 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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 4 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.
What are the cheapest airlines flying from Barcelona-El Prat Airport to Seattle round-trip?
According to our current data, Scandinavian Airlines ($560), Air Canada ($627), and Lufthansa ($635) offers the cheapest pricing from Barcelona-El Prat Airport to Seattle. Users have found that Scandinavian Airlines is 35% cheaper than the other options available to this destination.
What are the cheapest airlines to fly from Barcelona-El Prat Airport to Seattle one-way?
For one-way options, check prices for Icelandair. According to our data, you can fly for as low as $453. Users have also found prices from $567 and $592 on TAP AIR PORTUGAL and Aer Lingus, respectively.
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 July is currently the most expensive (average of $391). 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

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Tacoma

Lakewood

Ocean Shores

Lacey

Leavenworth

Federal Way

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Shoreline

Kent

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Other flights to Seattle

Top 4 airlines flying from Barcelona-El Prat to Seattle

Airline	Cheapest	Average	Flexibility	On-time
Air France	Cheapest$674	Average$869	FlexibilityNo cancel fee	On-time77%
KLM	Cheapest$677	Average$933	FlexibilityNo cancel fee	On-time75%
Delta	Cheapest$686	Average$801	FlexibilityNo cancel fee	On-timeN/A
British Airways	Cheapest$720	Average$1,019	FlexibilityNo cancel fee	On-time70%

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$318+ 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 9/8. 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 June 12, 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 June 12, 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?

Use this chart to determine the optimal time to book a round-trip flight from Barcelona-El Prat to Seattle. Price data was last updated on June 9, 2025.

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?

Find hourly flight availability from Barcelona-El Prat to Seattle. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 12, 2025.

Rainfall in Seattle by month

Plan your trip to Seattle by taking into account the average rainfall totals by month.

Temperature in Seattle by month

Plan your trip to Seattle by taking into account the average temperature totals by month.

Reviews of airlines servicing Seattle

To help decide which airline to fly from Barcelona to Seattle, see what other customers have to say about Delta, KLM and SWISS. In addition to providing an overall rating, users have also rated airlines 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?

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

What are the cheapest airlines to fly from Barcelona-El Prat Airport to Seattle one-way?

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 Barcelona-El Prat Airport?

Browse thousands of different options on Cheapflights for your next trip

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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 4 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 June 12, 2025.