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

According to our current data, Scandinavian Airlines ($623), Icelandair ($740), and British Airways ($792) offers the cheapest pricing from Barcelona-El Prat Airport to Seattle. Users have found that Scandinavian Airlines is 27% 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 Aer Lingus. According to our data, you can fly for as low as $592. Users have also found prices from $601 and $608 on TAP AIR PORTUGAL and WestJet, 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.

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?

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 $1,442 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 $860 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.

$389+ 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”

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Cheapflights Tip: The best prices from Barcelona-El Prat to Seattle/Tacoma Intl are usually found in March or November, 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	$623 (lol.travel)
One-way from	$389 (Kiwi.com)
Popular in	July
Cheapest in	March
Average price	$1,037

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. 13% potential increase in price ($136 potential increase over avg. RT price).

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Cheapest flight prices on average. 1% potential price decrease ($17 potential savings vs. average RT price).

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Average for round-trip flights in July 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 julio 3, 2025.

dom. 8/247:00 pmBCN - SEA

1 stop27h 50mScandinavian Airlines

sáb. 9/64:00 pmSEA - BCN

1 stop17h 10mScandinavian Airlines

Deal found 7/1

$623

jue. 9/119:05 pmBCN - SEA

2 stops44h 49mMultiple Airlines

jue. 10/29:15 pmSEA - BCN

1 stop30h 10mMultiple Airlines

Deal found 7/2

$686

lun. 8/253:45 pmBCN - SEA

1 stop13h 55mIcelandair

mié. 9/107:00 pmSEA - BCN

1 stop34h 45mIcelandair

Deal found 7/2

$740

jue. 9/1110:45 amBCN - SEA

1 stop18h 24mBritish Airways

jue. 10/21:30 pmSEA - BCN

1 stop19h 55mBritish Airways

Deal found 7/1

$792

lun. 12/15:50 amBCN - SEA

1 stop15h 20mLufthansa

dom. 12/73:10 pmSEA - BCN

1 stop14h 35mLufthansa

Deal found 7/1

$796

jue. 9/116:20 amBCN - SEA

1 stop14h 25mDelta

jue. 10/26:00 amSEA - BCN

2 stops18h 00mDelta

Deal found 7/2

$797

jue. 9/119:00 amBCN - SEA

2 stops20h 22mVirgin Atlantic

jue. 10/26:00 amSEA - BCN

2 stops16h 15mVirgin Atlantic

Deal found 7/1

$804

lun. 12/15:50 amBCN - SEA

2 stops22h 26mAir Canada

dom. 12/73:40 pmSEA - BCN

2 stops32h 55mAir Canada

Deal found 7/1

$813

jue. 9/116:50 amBCN - SEA

2 stops16h 26mUnited Airlines

jue. 10/28:00 amSEA - BCN

1 stop15h 20mUnited Airlines

Deal found 7/3

$814

lun. 8/259:10 pmBCN - SEA

2 stops31h 52mIberia

jue. 9/47:48 amSEA - BCN

1 stop17h 22mIberia

Deal found 7/2

$839

lun. 8/258:00 pmBCN - SEA

2 stops31h 36mSWISS

mié. 9/101:05 pmSEA - BCN

2 stops25h 30mSWISS

Deal found 7/2

$853

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 julio 3, 2025.

dom. 8/247:00 pmBCN - SEA

1 stop27h 50mScandinavian Airlines

sáb. 9/64:00 pmSEA - BCN

1 stop17h 10mScandinavian Airlines

Deal found 7/1

$623

jue. 9/119:05 pmBCN - SEA

2 stops44h 49mMultiple Airlines

jue. 10/29:15 pmSEA - BCN

1 stop30h 10mMultiple Airlines

Deal found 7/2

$686

lun. 8/253:45 pmBCN - SEA

1 stop13h 55mIcelandair

mié. 9/107:00 pmSEA - BCN

1 stop34h 45mIcelandair

Deal found 7/2

$740

jue. 9/1110:45 amBCN - SEA

1 stop18h 24mBritish Airways

jue. 10/21:30 pmSEA - BCN

1 stop19h 55mBritish Airways

Deal found 7/1

$792

jue. 9/116:20 amBCN - SEA

1 stop14h 25mDelta

jue. 10/26:00 amSEA - BCN

2 stops18h 00mDelta

Deal found 7/2

$797

jue. 9/119:00 amBCN - SEA

2 stops20h 22mVirgin Atlantic

jue. 10/26:00 amSEA - BCN

2 stops16h 15mVirgin Atlantic

Deal found 7/1

$804

jue. 9/116:50 amBCN - SEA

2 stops16h 26mUnited Airlines

jue. 10/28:00 amSEA - BCN

1 stop15h 20mUnited Airlines

Deal found 7/3

$814

lun. 8/255:20 pmBCN - SEA

1 stop27h 15mKLM

dom. 8/311:55 pmSEA - BCN

1 stop19h 55mKLM

Deal found 7/2

$835

lun. 8/259:10 pmBCN - SEA

2 stops31h 52mIberia

jue. 9/47:48 amSEA - BCN

1 stop17h 22mIberia

Deal found 7/2

$839

lun. 8/258:00 pmBCN - SEA

2 stops31h 36mSWISS

mié. 9/101:05 pmSEA - BCN

2 stops25h 30mSWISS

Deal found 7/2

$853

Last-minute flights from Barcelona-El Prat to Seattle
Discover last-minute flight deals from Barcelona-El Prat to Seattle. Data last updated julio 3, 2025 and is based on user searches.

mar. 7/86:00 amBCN - SEA

3 stops45h 36mMultiple Airlines

vie. 7/115:30 amSEA - BCN

3 stops21h 55mMultiple Airlines

Deal found 7/2

$1,023

mar. 7/86:20 amBCN - SEA

1 stop14h 15mDelta

sáb. 8/307:45 amSEA - BCN

2 stops22h 55mDelta

Deal found 7/2

$1,190

mar. 7/812:10 pmBCN - SEA

2 stops19h 06mAir Canada

vie. 7/115:30 amSEA - BCN

2 stops17h 20mAir Canada

Deal found 7/2

$1,542

mar. 7/811:05 pmBCN - SEA

2 stops30h 25mAer Lingus

sáb. 8/306:10 amSEA - BCN

2 stops31h 15mAer Lingus

Deal found 7/2

$1,658

mar. 7/82:00 pmBCN - SEA

1 stop28h 42mFinnair

vie. 7/111:18 pmSEA - BCN

1 stop36h 12mFinnair

Deal found 7/2

$1,945

mié. 7/92:00 pmBCN - SEA

1 stop16h 43mBritish Airways

sáb. 8/303:09 pmSEA - BCN

2 stops20h 26mBritish Airways

Deal found 7/2

$961

mié. 7/912:20 pmBCN - SEA

1 stop17h 49mAmerican Airlines

vie. 8/2912:46 amSEA - BCN

1 stop24h 44mAmerican Airlines

Deal found 7/2

$1,237

dom. 7/139:30 pmBCN - SEA

2 stops25h 20mScandinavian Airlines

vie. 7/184:00 pmSEA - BCN

1 stop17h 10mScandinavian Airlines

Deal found 7/3

$988

dom. 7/134:00 pmBCN - SEA

1 stop16h 03mUnited Airlines

jue. 7/1712:20 amSEA - BCN

2 stops22h 30mUnited Airlines

Deal found 7/3

$1,584

lun. 7/216:50 amBCN - SEA

1 stop14h 05mLufthansa

mar. 7/292:20 pmSEA - BCN

1 stop13h 45mLufthansa

Deal found 6/30

$965

jue. 7/3112:10 pmBCN - SEA

1 stop17h 31mAir Canada

dom. 8/177:20 amSEA - BCN

1 stop15h 30mAir Canada

Deal found 7/1

$928

mar. 8/1210:45 amBCN - SEA

1 stop21h 56mFinnair

mié. 9/247:48 amSEA - BCN

1 stop17h 22mFinnair

Deal found 7/3

$954

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 julio 3, 2025.

vie. 9/121:20 pmBCN - SEA

2 stops30h 14mMultiple Airlines

Deal found 7/1

$389

lun. 9/2211:05 pmBCN - SEA

1 stop27h 45mAer Lingus

Deal found 7/1

$592

lun. 9/2211:25 amBCN - SEA

2 stops31h 54mTAP AIR PORTUGAL

Deal found 7/1

$601

mié. 9/102:25 pmBCN - SEA

1 stop15h 04mWestJet

Deal found 7/1

$608

mié. 7/912:00 pmBCN - SEA

1 stop31h 35mTurkish Airlines

Deal found 7/2

$676

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

dom. 8/24

7:00 pm-1:50 pm

1 stop27h 50m

Seattle/Tacoma Intl

sáb. 9/6

4:00 pm-6:10 pm

1 stop17h 10m

$623

BarcelonaSeattle

BCN - SEA

BCNSEA

Barcelona-El Prat

jue. 9/11

9:05 pm-8:54 am

2 stops44h 49m

Seattle/Tacoma Intl

jue. 10/2

9:15 pm-12:25 pm

1 stop30h 10m

$686

BarcelonaSeattle

BCN - SEA

BCNSEA

Barcelona-El Prat

lun. 8/25

3:45 pm-8:40 pm

1 stop13h 55m

Seattle/Tacoma Intl

mié. 9/10

7:00 pm-2:45 pm

1 stop34h 45m

$740

BarcelonaSeattle

BCN - SEA

BCNSEA

Barcelona-El Prat

jue. 9/11

10:45 am-8:09 pm

1 stop18h 24m

Seattle/Tacoma Intl

jue. 10/2

1:30 pm-6:25 pm

1 stop19h 55m

$792

BarcelonaSeattle

BCN - SEA

BCNSEA

Barcelona-El Prat

lun. 12/1

5:50 am-12:10 pm

1 stop15h 20m

Seattle/Tacoma Intl

dom. 12/7

3:10 pm-2:45 pm

1 stop14h 35m

$796

BarcelonaSeattle

BCN - SEA

BCNSEA

Barcelona-El Prat

jue. 9/11

6:20 am-11:45 am

1 stop14h 25m

Seattle/Tacoma Intl

jue. 10/2

6:00 am-9:00 am

2 stops18h 00m

$797

BarcelonaSeattle

BCN - SEA

BCNSEA

Barcelona-El Prat

jue. 9/11

9:00 am-8:22 pm

2 stops20h 22m

Seattle/Tacoma Intl

jue. 10/2

6:00 am-7:15 am

2 stops16h 15m

$804

BarcelonaSeattle

BCN - SEA

BCNSEA

Barcelona-El Prat

lun. 12/1

5:50 am-7:16 pm

2 stops22h 26m

Seattle/Tacoma Intl

dom. 12/7

3:40 pm-9:35 am

2 stops32h 55m

$813

BarcelonaSeattle

BCN - SEA

BCNSEA

Barcelona-El Prat

jue. 9/11

6:50 am-2:16 pm

2 stops16h 26m

Seattle/Tacoma Intl

jue. 10/2

8:00 am-8:20 am

1 stop15h 20m

$814

BarcelonaSeattle

BCN - SEA

BCNSEA

Barcelona-El Prat

lun. 8/25

5:20 pm-11:35 am

1 stop27h 15m

Seattle/Tacoma Intl

dom. 8/31

1:55 pm-6:50 pm

1 stop19h 55m

$835

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/1

Showing 1-10 of 16 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 $390). 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.

How much does it cost to fly round-trip from Barcelona-El Prat Airport to Seattle?

Reviews of airlines servicing Seattle

See what other customers who have flown with Delta, KLM, and SWISS 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

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

7,982 reviews

Delta

8.0

Very good

7,982 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

1,367 reviews

Delta

8.0

Very good

7,982 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

1,654 reviews

Delta

8.0

Very good

7,982 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

8,861 reviews

Delta

8.0

Very good

7,982 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!

Virgin Atlantic

7.4

Good

654 reviews

Delta

8.0

Very good

7,982 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 ($623), Icelandair ($740), and British Airways ($792) offers the cheapest pricing from Barcelona-El Prat Airport to Seattle. Users have found that Scandinavian Airlines is 27% 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 Aer Lingus. According to our data, you can fly for as low as $592. Users have also found prices from $601 and $608 on TAP AIR PORTUGAL and WestJet, 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 $390). 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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Other flights to Seattle

Top 4 airlines flying from Barcelona-El Prat to Seattle

Airline	Cheapest	Average	Flexibility	On-time
KLM	Cheapest$677	Average$962	FlexibilityNo cancel fee	On-time75%
Delta	Cheapest$686	Average$784	FlexibilityNo cancel fee	On-timeN/A
Air France	Cheapest$753	Average$869	FlexibilityNo cancel fee	On-time77%
British Airways	Cheapest$771	Average$1,026	FlexibilityNo cancel fee	On-time70%

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$389+ 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 9/12. 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 November, 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

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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 julio 3, 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 julio 3, 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 27, 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 julio 3, 2025.

How much does it cost to fly round-trip from Barcelona-El Prat Airport to Seattle?

Reviews of airlines servicing Seattle

See what other customers who have flown with Delta, KLM, and SWISS 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?

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 julio 3, 2025.