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BCN - SEA

$417 Find Cheap Flights from Barcelona to Seattle - Compare and Save

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1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$622
Typical prices: $801-$1,014
Multiple Airlines
Sat 11/24Sat 12/1
BCN - SEA • 2 stops
Cheapest one-way
$417
Typical prices: $593-$898
Multiple Airlines
Mon 12/10
BCN - SEA • 3 stops
Nonstop flights
Not available
There are currently no direct flights between Barcelona-El Prat Airport and Seattle. You'll need to take a connecting flight to reach the destination.
Insights
Insights
When to book
23 weeks
in advance
Our data shows that travelers who book at least 23 weeks in advance save around 34% compared to booking last minute.
Insights
Insights
When to travel
October
Cheapest • 12% price drop
August
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Boston Logan Intl (BOS)
Cheapest • Avg $584 (round-trip)
Reykjavik Keflavik Intl (KEF)
Shortest trip • 14h (one-way)
Insights
Insights
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We hope you love your trip to Seattle!

Cheap Flights from Barcelona to Seattle (BCN-SEA)

 

Cheap flights from Barcelona to Seattle with top airlines, updated regularly. Compare round-trip, one-way, direct and last-minute deals.

Tue, Nov 24 - Tue, Dec 1
Multiple Airlines Logo
7:30 am - 5:00 pmBCN  Barcelona-El Prat-SEA Seattle/Tacoma Intl
42h 30m2 stops London Heathrow Reykjavik Keflavik Intl
Multiple Airlines Logo
2:35 pm - 12:05 amSEA  Seattle/Tacoma Intl-BCN Barcelona-El Prat
24h 30m2 stops Reykjavik Keflavik Intl London Heathrow
$622Multiple Airlines
Fri, Oct 23 - Mon, Oct 26
Condor Logo
10:15 am - 4:00 pmBCN  Barcelona-El Prat-SEA Seattle/Tacoma Intl
14h 45m1 stop Frankfurt am Main
Condor Logo
6:50 pm - 10:10 pmSEA  Seattle/Tacoma Intl-BCN Barcelona-El Prat
19h 20m1 stop Frankfurt am Main
$628Condor
Tue, Nov 24 - Tue, Dec 1
Multiple Airlines Logo
7:30 am - 5:00 pmBCN  Barcelona-El Prat-SEA Seattle/Tacoma Intl
18h 30m1 stop London Heathrow
Multiple Airlines Logo
6:45 pm - 12:05 amSEA  Seattle/Tacoma Intl-BCN Barcelona-El Prat
20h 20m1 stop London Heathrow
$680Multiple Airlines
Mon, Dec 7 - Sun, Jan 17
Multiple Airlines Logo
9:50 am - 5:00 pmBCN  Barcelona-El Prat-SEA Seattle/Tacoma Intl
16h 10m1 stop London Luton
Multiple Airlines Logo
6:40 pm - 7:05 pmSEA  Seattle/Tacoma Intl-BCN Barcelona-El Prat
15h 25m1 stop London Heathrow
$698Multiple Airlines
Tue, Jan 12 - Thu, Jan 21
Delta Logo
6:00 am - 11:49 amBCN  Barcelona-El Prat-SEA Seattle/Tacoma Intl
14h 49m1 stop Amsterdam Schiphol
Delta Logo
11:25 am - 2:00 pmSEA  Seattle/Tacoma Intl-BCN Barcelona-El Prat
17h 35m2 stops Salt Lake City Paris Charles de Gaulle
$817Delta
Sun, Jan 31 - Mon, Feb 8
Delta Logo
6:00 am - 11:49 amBCN  Barcelona-El Prat-SEA Seattle/Tacoma Intl
14h 49m1 stop Amsterdam Schiphol
Delta Logo
7:20 am - 11:10 amSEA  Seattle/Tacoma Intl-BCN Barcelona-El Prat
18h 50m2 stops Boston Logan Intl Paris Charles de Gaulle
$817Delta
Wed, Dec 9 - Fri, Jan 15
Lufthansa Logo
6:50 am - 2:37 pmBCN  Barcelona-El Prat-SEA Seattle/Tacoma Intl
16h 47m2 stops Frankfurt am Main Vancouver Intl
Lufthansa Logo
7:00 am - 1:00 pmSEA  Seattle/Tacoma Intl-BCN Barcelona-El Prat
21h 00m2 stops Chicago O'Hare Intl Frankfurt am Main
$936Lufthansa
Mon, Oct 26 - Tue, Nov 10
British Airways Logo
6:10 pm - 12:25 pmBCN  Barcelona-El Prat-SEA Seattle/Tacoma Intl
26h 15m1 stop London Heathrow
British Airways Logo
6:45 pm - 5:30 pmSEA  Seattle/Tacoma Intl-BCN Barcelona-El Prat
13h 45m1 stop London Heathrow
$1,003British Airways
Sun, Oct 25 - Tue, Nov 10
Lufthansa Logo
7:30 am - 2:00 pmBCN  Barcelona-El Prat-SEA Seattle/Tacoma Intl
14h 30m1 stop Munich Franz Josef Strauss
Lufthansa Logo
8:09 am - 9:00 amSEA  Seattle/Tacoma Intl-BCN Barcelona-El Prat
15h 51m1 stop Washington, D.C. Dulles Intl
$1,102Lufthansa
Thu, Nov 19 - Wed, Dec 2
British Airways Logo
9:15 am - 4:50 pmBCN  Barcelona-El Prat-SEA Seattle/Tacoma Intl
16h 35m2 stops Madrid Barajas London Heathrow
British Airways Logo
10:52 am - 1:45 pmSEA  Seattle/Tacoma Intl-BCN Barcelona-El Prat
17h 53m2 stops Chicago O'Hare Intl London Heathrow
$1,645British Airways

Price, demand and travel trends for Barcelona-El Prat Airport to Seattle flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

What's the cheapest day of the week to fly from Barcelona-El Prat Airport to Seattle?

Based on deals KAYAK users found in the last 12 months, Thursday is the cheapest day of the week to fly from Barcelona-El Prat Airport to Seattle. It’s 6% cheaper than the average day, while Tuesday is the most expensive, with prices 14% higher.

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

•October is the cheapest month to fly from Barcelona-El Prat Airport to Seattle at $756 round-trip.
•December ($1,109) and July ($1,022) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 46% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are flights from Barcelona-El Prat Airport to Seattle the cheapest?

Flights from Barcelona-El Prat Airport to Seattle are cheapest 23 weeks before departure. Booking in this window typically costs about 34% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

Find deals

Key details for Barcelona-El Prat Airport to Seattle flights

Low season

February

Cheapest flight

$417
Beat the crowds with an average 31% drop in travelers.
The most popular month to fly with an average 106% increase in travelers.
One-way flight from Barcelona-El Prat Airport to Seattle

When to book flights from Barcelona to Seattle

Are your dates flexible? Find out the best times to travel from Barcelona to Seattle based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Your Barcelona-El Prat Airport to Seattle flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

  • What are the earliest and latest flights from Barcelona-El Prat Airport to Seattle?

    These are the earliest and latest flight times available from Barcelona-El Prat Airport to Seattle:

    • Earliest: departs at 1:20 pm and lands at 12:44 am
    • Latest: departs at 1:20 pm and lands at 12:44 am.

    The flight takes about 11h 24m.

  • What cabin classes can I book on flights from Barcelona-El Prat Airport to Seattle?

    Three cabin classes are available on flights from Barcelona-El Prat Airport to Seattle:

    • Economy Class
    • Premium Economy Class
    • Business Class

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

    A nonstop flight from Barcelona-El Prat Airport to Seattle takes 11h 24m, covering 5,421 miles.

  • Do I need a passport to fly from Barcelona-El Prat Airport to Seattle?

    Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

  • How much should I expect to pay for a Barcelona-El Prat Airport to Seattle flight?

    Round-trip flights from Barcelona-El Prat Airport to Seattle range from $801 to $1,014, with an average of $862 over the past 12 months. Anything below $801 counts as a good deal.

  • How expensive are last-minute Barcelona-El Prat Airport to Seattle flights?

    Last-minute fares on this route (booked within two weeks of departure) run 27% above the $862 route average. Book 23 weeks before departure for the lowest fares.

  • How much can I save by taking a layover when flying from Barcelona-El Prat Airport to Seattle?

    On this route, layover flights are cheaper than nonstop options on average. Layover fares average $584 round-trip via Boston Logan Intl (BOS), compared to $1,001 for nonstop.

  • What is the standard checked-bag allowance on flights from Barcelona-El Prat Airport to Seattle?

    There is no standard. Checked-bag policies vary by airline on this route. Most carriers charge $60–$100 for the first checked bag in economy. Premium fares and elite-status bookings typically include a free checked bag.

  • Which aircraft model is used most often on flights from Barcelona-El Prat Airport to Seattle?

    The Airbus A330-900neo family is used most often on this route, operated mainly by KLM and Delta. Other aircraft seen on the route include Airbus A350-900 variants.

  • Which airlines offer Wi-Fi on Barcelona-El Prat Airport to Seattle flights?

    Two airlines offer in-flight Wi-Fi on Barcelona-El Prat Airport to Seattle flights:

    • Delta
    • Air France

    Pricing varies by airline and fare class. Some plans are included with the ticket or loyalty program; others are paid add-ons priced by flight length.

  • How are flight prices from Barcelona-El Prat Airport to Seattle looking right now?

    One-way fares from Barcelona-El Prat Airport to Seattle are currently lower than usual. Average one-way flight prices are about $593, which is 18% below the typical average for this route.

  • What car rental options are available at Seattle/Tacoma Intl Airport (SEA)?

    Seattle/Tacoma Intl Airport (SEA) hosts 5 major car rental companies, with daily rates starting from around $4 for economy cars. Top options include:

    • Fox
    • Europcar
    • Thrifty
    • Budget
    • Hertz

  • Which airports can I use when flying from Barcelona-El Prat Airport to Seattle?

    Flights from Barcelona-El Prat Airport to Seattle usually depart from Barcelona-El Prat (BCN) and arrive at Seattle/Tacoma Intl (SEA).

  • Which airports do connecting flights from Barcelona-El Prat Airport to Seattle pass through?

    One-stop flights from Barcelona-El Prat Airport to Seattle most commonly connect through:

    • Frankfurt am Main (FRA) - 62% of one-stop connections
    • London Heathrow (LHR) - 13% of one-stop connections
    • Paris Charles de Gaulle (CDG) - 7% of one-stop connections
    • Amsterdam Schiphol (AMS) - 7% of one-stop connections

  • Can I save money by using flexible dates for flights from Barcelona-El Prat Airport to Seattle?

    Yes. Flexible dates can save you up to 18% on flights from Barcelona-El Prat Airport to Seattle. Thursday is the cheapest departure day at $815 round-trip on average, while Tuesday is the most expensive at $988, a difference of $173.

    KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • What airlines fly from Barcelona-El Prat Airport to Seattle?

    Only Delta operates flights between Barcelona-El Prat Airport and Seattle.

  • How much time can I save by choosing a different layover airport from Barcelona-El Prat Airport to Seattle?

    Flying via Reykjavik Keflavik Intl (KEF) gives the shortest average 1-stop total travel time at 14h, compared with 14h 09m via Paris Charles de Gaulle (CDG) and 14h 35m via London Heathrow (LHR).

  • What is the time difference between Barcelona-El Prat Airport and Seattle?

    Seattle is 9 hours behind Barcelona-El Prat Airport (Pacific Time vs Central European Time). Plan for the time shift when scheduling connections or first-day activities.

  • What popular places can I visit in Seattle?

    Some of the most popular sights in Seattle are Pike Place Market, Lumen Field and Space Needle. These are among the most viewed places in Seattle on KAYAK.

  • Which airlines offer extra legroom and free seat selection on Barcelona-El Prat Airport to Seattle flights?

    Among airlines operating Barcelona-El Prat Airport to Seattle flights:

    • Delta: offers free seat selection
    • KLM: offers free seat selection

    Extra legroom and free seat selection availability depends on fare class and route.

  • Which airlines include bags at no extra cost on Barcelona-El Prat Airport to Seattle flights?

    Here are some options for this route, based on selected ticket types and cabin classes:

    • Delta: a cabin bag and a checked bag in Economy Class
    • KLM: a cabin bag and a checked bag in Economy Class
    • Air France: a cabin bag and a checked bag in Economy Class

    Bag allowance can vary by ticket type, cabin class, route and airline, so always check the fare details before booking.

Your guide to booking Barcelona-El Prat Airport to Seattle flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates are flexible, aim for a Thursday departure and avoid flying on Tuesday. On this route, Thursday flights average $815, about $173 less than Tuesday fares (18% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 23 weeks before you fly. On this route, that window historically saves about 34% versus last-minute pricing (KAYAK booking data, last 12 months).
  • If you can choose when to travel, plan your Barcelona-El Prat Airport to Seattle trip for October. Fares historically average $756 round-trip in that month - typically $353 less than the most expensive month, which is December (based on the last 12 months).
  • If you have the time, taking a 1-stop flight through Boston Logan Intl Airport (BOS) can be cheaper than flying direct. The cheapest layover option averages $584 round-trip on this route - about $417 less than direct flights (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Seattle/Tacoma Intl Airport.

    • Coast Gateway Hotel
    • Seattle Airport Marriott
    • Fairfield by Marriott Inn & Suites Seattle Sea-Tac Airport

More options for your flight from Barcelona to Seattle

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