$197+ 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 11/24. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — BCN
Sep 9 — Sep 161
Round-trip
1 adult, Economy
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Find cheap flights from Seattle to Barcelona-El Prat 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 Seattle/Tacoma Intl to Barcelona-El Prat are usually found in January or February, booked 74 days in advance, depart on a Friday or Monday and return on a Wednesday
Cheap flight deals from Seattle to Barcelona-El Prat
Cheapest
Best
Last-minute
One-way
Cheapest flights from Seattle to Barcelona-El PratExplore 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 August 10, 2026.
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 August 10, 2026.
This SmartFares deal was found by Cheapflights users on 8/9. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/36:00 pm -
1 stop13h 05m
Sat 10/248:00 am -
1 stop17h 00m
Deal found 8/9![Condor logo]()
$685
This Mytrip deal was found by Cheapflights users on 8/6. 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.
Sat 9/263:40 pm -
3 stops33h 05m
Fri 10/95:45 am -
2 stops21h 10m
Deal found 8/6![Multiple Airlines logo]()
$686
This Cheapflightsfares deal was found by Cheapflights users on 8/7. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/156:05 pm -
1 stop19h 05m
Thu 9/248:00 am -
1 stop17h 00m
Deal found 8/7![Condor logo]()
$689
This Kiwi.com deal was found by Cheapflights users on 8/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/206:05 pm -
1 stop19h 05m
Tue 10/2710:15 am -
1 stop14h 40m
Deal found 8/10![Condor logo]()
$694
This Mytrip deal was found by Cheapflights users on 8/9. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/95:50 am -
3 stops29h 45m
Wed 9/168:05 pm -
3 stops33h 59m
Deal found 8/9![Multiple Airlines logo]()
$695
This Mytrip deal was found by Cheapflights users on 8/6. 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.
Thu 9/38:00 am -
2 stops31h 50m
Thu 9/107:50 am -
2 stops22h 14m
Deal found 8/6![Multiple Airlines logo]()
$696
This Kiwi.com deal was found by Cheapflights users on 8/7. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/56:10 pm -
1 stop19h 00m
Fri 10/168:00 am -
1 stop17h 00m
Deal found 8/7![Condor logo]()
$698
This Justfly.com deal was found by Cheapflights users on 8/10. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/66:05 pm -
1 stop19h 05m
Tue 10/1310:25 am -
1 stop14h 15m
Deal found 8/10![Condor logo]()
$700
This Kiwi.com deal was found by Cheapflights users on 8/8. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/176:00 pm -
1 stop19h 10m
Tue 10/277:00 am -
1 stop17h 55m
Deal found 8/8![Condor logo]()
$701
This Kiwi.com deal was found by Cheapflights users on 8/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/166:00 pm -
1 stop13h 05m
Sun 10/257:00 am -
1 stop15h 55m
Deal found 8/10![Condor logo]()
$702
This Mytrip deal was found by Cheapflights users on 8/10. 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.
Thu 9/35:50 am -
3 stops34h 00m
Tue 9/86:45 pm -
2 stops31h 14m
Deal found 8/10![Multiple Airlines logo]()
$705
Best flights from Seattle to Barcelona-El PratDiscover carefully curated flight deals from Seattle to Barcelona-El Prat that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 10, 2026.
Discover carefully curated flight deals from Seattle to Barcelona-El Prat that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 10, 2026.
This Condor deal was found by Cheapflights users on 8/9. 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 Condor is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/1411:41 am -
2 stops25h 29m
Tue 9/2210:25 am -
1 stop14h 15m
Deal found 8/9![Multiple Airlines logo]()
$850
This Turkish Airlines deal was found by Cheapflights users on 8/7. 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.
Mon 11/97:05 pm -
1 stop19h 45m
Wed 11/256:20 pm -
1 stop31h 50m
Deal found 8/7![Turkish Airlines logo]()
$942
This Delta deal was found by Cheapflights users on 8/7. 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.
Mon 11/99:18 am -
2 stops22h 42m
Fri 11/276:00 am -
1 stop14h 47m
Deal found 8/7![Delta logo]()
$954
This United Airlines deal was found by Cheapflights users on 8/5. 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.
Sat 11/1411:17 pm -
1 stop24h 03m
Fri 11/276:50 am -
2 stops22h 57m
Deal found 8/5![United Airlines logo]()
$958
This KLM deal was found by Cheapflights users on 8/7. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/123:35 pm -
Nonstop10h 35m
Sat 9/196:20 am -
1 stop19h 15m
Deal found 8/7![KLM logo]()
$1,075
This Turkish Airlines deal was found by Cheapflights users on 8/5. 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.
Tue 1/127:05 pm -
1 stop37h 00m
Tue 1/196:30 pm -
1 stop31h 40m
Deal found 8/5![Turkish Airlines logo]()
$942
This Delta deal was found by Cheapflights users on 8/6. 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.
Sat 9/263:35 pm -
Nonstop10h 35m
Fri 10/91:20 pm -
Nonstop11h 24m
Deal found 8/6![Delta logo]()
$990
This Turkish Airlines deal was found by Cheapflights users on 8/5. 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.
Thu 1/147:05 pm -
1 stop37h 00m
Thu 1/216:30 am -
1 stop19h 40m
Deal found 8/5![Turkish Airlines logo]()
$942
This United Airlines deal was found by Cheapflights users on 8/6. 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.
Wed 12/162:50 pm -
1 stop17h 45m
Fri 12/2510:30 am -
1 stop18h 50m
Deal found 8/6![United Airlines logo]()
$1,151
This Turkish Airlines deal was found by Cheapflights users on 8/5. 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.
Fri 11/207:05 pm -
1 stop37h 10m
Fri 11/276:30 am -
1 stop19h 40m
Deal found 8/5![Turkish Airlines logo]()
$982
This Turkish Airlines deal was found by Cheapflights users on 8/7. 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.
Tue 11/107:05 pm -
1 stop37h 00m
Sun 11/296:30 am -
1 stop19h 40m
Deal found 8/7![Turkish Airlines logo]()
$1,002
Last-minute flights from Seattle to Barcelona-El PratDiscover last-minute flight deals from Seattle to Barcelona-El Prat. Data last updated August 10, 2026 and is based on user searches.
Discover last-minute flight deals from Seattle to Barcelona-El Prat. Data last updated August 10, 2026 and is based on user searches.
This FlightHub deal was found by Cheapflights users on 8/5. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/176:10 pm -
1 stop19h 00m
Tue 10/2710:15 am -
1 stop14h 40m
Deal found 8/5![Condor logo]()
$700
This Mytrip deal was found by Cheapflights users on 8/6. 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.
Thu 9/38:00 am -
2 stops31h 50m
Thu 9/107:50 am -
2 stops22h 14m
Deal found 8/6![Multiple Airlines logo]()
$696
This Mytrip deal was found by Cheapflights users on 8/10. 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.
Thu 9/35:50 am -
3 stops34h 00m
Tue 9/86:45 pm -
2 stops31h 14m
Deal found 8/10![Multiple Airlines logo]()
$705
This Mytrip deal was found by Cheapflights users on 8/9. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/95:50 am -
3 stops29h 45m
Wed 9/168:05 pm -
3 stops33h 59m
Deal found 8/9![Multiple Airlines logo]()
$695
This Cheapflightsfares deal was found by Cheapflights users on 8/10. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/156:05 pm -
1 stop19h 05m
Thu 9/248:00 am -
1 stop17h 00m
Deal found 8/10![Condor logo]()
$689
This FlightHub deal was found by Cheapflights users on 8/6. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/2211:41 am -
2 stops19h 19m
Wed 10/1410:25 am -
1 stop14h 15m
Deal found 8/6![Multiple Airlines logo]()
$710
This Mytrip deal was found by Cheapflights users on 8/6. 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.
Sat 9/263:40 pm -
3 stops33h 05m
Fri 10/95:45 am -
2 stops21h 10m
Deal found 8/6![Multiple Airlines logo]()
$686
One-way flights from Seattle to Barcelona-El PratSearch for one-way flight options from Seattle to Barcelona-El Prat. Find affordable one-way fares based on user searches. Data last updated August 10, 2026.
Search for one-way flight options from Seattle to Barcelona-El Prat. Find affordable one-way fares based on user searches. Data last updated August 10, 2026.
This Kiwi.com deal was found by Cheapflights users on 8/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/248:31 am -
3 stops21h 54m
Deal found 8/9![Multiple Airlines logo]()
$197
This Kiwi.com deal was found by Cheapflights users on 8/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/238:31 am -
3 stops21h 54m
Deal found 8/9![Multiple Airlines logo]()
$214
This Kiwi.com deal was found by Cheapflights users on 8/6. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 1/268:21 am -
3 stops22h 04m
Deal found 8/6![Multiple Airlines logo]()
$223
This Kiwi.com deal was found by Cheapflights users on 8/7. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/98:18 am -
3 stops30h 47m
Deal found 8/7![Multiple Airlines logo]()
$232
This Kiwi.com deal was found by Cheapflights users on 8/5. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/158:18 am -
3 stops30h 47m
Deal found 8/5![Multiple Airlines logo]()
$242
This Kiwi.com deal was found by Cheapflights users on 8/8. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/188:00 am -
3 stops23h 10m
Deal found 8/8![Multiple Airlines logo]()
$245
This Kiwi.com deal was found by Cheapflights users on 8/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/173:40 pm -
2 stops22h 45m
Deal found 8/9![Multiple Airlines logo]()
$251
This Kiwi.com deal was found by Cheapflights users on 8/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/208:00 am -
3 stops24h 00m
Deal found 8/9![Multiple Airlines logo]()
$252
Find 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 August 10, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $685 (SmartFares) |
One-way from | $197 (Kiwi.com) |
Popular in | June |
Cheapest in | January |
Average price | $893 |
Good round-trip deal | $960 or less |
Good one-way deal | $508 or less |
Cheapflights Fare Finder
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 August 10, 2026.
Use the filters below to find and compare flights from Seattle to Barcelona-El Prat Airport that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
SeattleBarcelona
SEA Seattle/Tacoma Intl - BCN Barcelona-El Prat
SEABCN
Seattle/Tacoma Intl
Mon 9/14
11:41 am-10:10 pm
2 stops25h 29m
Barcelona-El Prat
Tue 9/22
10:25 am-3:40 pm
1 stop14h 15m
$850
SeattleBarcelona
SEA Seattle/Tacoma Intl - BCN Barcelona-El Prat
SEABCN
Seattle/Tacoma Intl
Mon 11/9
7:05 pm-11:50 pm
1 stop19h 45m
Barcelona-El Prat
Wed 11/25
6:20 pm-5:10 pm
1 stop31h 50m
$942
SeattleBarcelona
SEA Seattle/Tacoma Intl - BCN Barcelona-El Prat
SEABCN
Seattle/Tacoma Intl
Tue 1/12
7:05 pm-5:05 pm
1 stop37h 00m
Barcelona-El Prat
Tue 1/19
6:30 pm-5:10 pm
1 stop31h 40m
$942
SeattleBarcelona
SEA Seattle/Tacoma Intl - BCN Barcelona-El Prat
SEABCN
Seattle/Tacoma Intl
Thu 1/14
7:05 pm-5:05 pm
1 stop37h 00m
Barcelona-El Prat
Thu 1/21
6:30 am-5:10 pm
1 stop19h 40m
$942
SeattleBarcelona
SEA Seattle/Tacoma Intl - BCN Barcelona-El Prat
SEABCN
Seattle/Tacoma Intl
Mon 11/9
9:18 am-5:00 pm
2 stops22h 42m
Barcelona-El Prat
Fri 11/27
6:00 am-11:47 am
1 stop14h 47m
$954
SeattleBarcelona
SEA Seattle/Tacoma Intl - BCN Barcelona-El Prat
SEABCN
Seattle/Tacoma Intl
Sat 11/14
11:17 pm-8:20 am
1 stop24h 03m
Barcelona-El Prat
Fri 11/27
6:50 am-8:47 pm
2 stops22h 57m
$958
SeattleBarcelona
SEA Seattle/Tacoma Intl - BCN Barcelona-El Prat
SEABCN
Seattle/Tacoma Intl
Fri 11/20
7:05 pm-5:15 pm
1 stop37h 10m
Barcelona-El Prat
Fri 11/27
6:30 am-5:10 pm
1 stop19h 40m
$982
Quickest round-trip
SeattleBarcelona
SEA Seattle/Tacoma Intl - BCN Barcelona-El Prat
SEABCN
Seattle/Tacoma Intl
Sat 9/26
3:35 pm-11:10 am
Nonstop10h 35m
Barcelona-El Prat
Fri 10/9
1:20 pm-3:44 pm
Nonstop11h 24m
$990
SeattleBarcelona
SEA Seattle/Tacoma Intl - BCN Barcelona-El Prat
SEABCN
Seattle/Tacoma Intl
Tue 11/10
7:05 pm-5:05 pm
1 stop37h 00m
Barcelona-El Prat
Sun 11/29
6:30 am-5:10 pm
1 stop19h 40m
$1,002
SeattleBarcelona
SEA Seattle/Tacoma Intl - BCN Barcelona-El Prat
SEABCN
Seattle/Tacoma Intl
Sat 9/12
3:35 pm-11:10 am
Nonstop10h 35m
Barcelona-El Prat
Sat 9/19
6:20 am-4:35 pm
1 stop19h 15m
$1,075
Showing 1-10 of 21 resultsSorted by cheapest first
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 August.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star |
- 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.
SEA-BCN
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 Seattle to Barcelona-El Prat Airport
Prices
Delays
How far ahead should I book a flight from Seattle to Barcelona-El Prat Airport?
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 73 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 $476). Flying from Seattle to Barcelona-El Prat Airport in June is currently the most expensive (average of $1,188). 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 August 10, 2026.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Seattle to Barcelona-El Prat Airport as you normally would.
How often are flights from Seattle to Barcelona delayed?
About 11% of weekly flights between Seattle and Barcelona have experienced delays in the past year, with the average delay time being 134 minutes.
What is the most punctual flight time for Seattle to Barcelona flights?
Historically, flights departing in the early afternoon are less likely to be delayed, whereas flights leaving in the early afternoon tend to experience delays more often.
What day of the week experiences the fewest flight delays on this route?
Saturday tends to have the lowest number of delays on this route, whereas Tuesday has historically faced a higher average of delays compared to other days of the week.
Which airline has the best punctuality record on Seattle to Barcelona flights?
Over the last year, Delta have had the lowest number of delays on this route, with just 11% of flights being delayed.
Reviews of airlines servicing Barcelona-El Prat
Get insights into the airlines that provide service to Barcelona-El Prat. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Barcelona-El Prat. Reviews last updated August 10, 2026.
See what other customers who have flown with Delta,Turkish Airlines, andIcelandair from Seattle to Barcelona-El Prat Airport have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Food
7.2
Entertainment
7.8
Boarding
8.1
Crew
8.5
Overall
7.8
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Food
7.2
Entertainment
7.8
Boarding
8.1
Crew
8.5
Overall
7.8
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Food
7.2
Entertainment
7.8
Boarding
8.1
Crew
8.5
Overall
7.8
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Food
7.2
Entertainment
7.8
Boarding
8.1
Crew
8.5
Overall
7.8
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Food
7.2
Entertainment
7.8
Boarding
8.1
Crew
8.5
Overall
7.8
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Food
7.2
Entertainment
7.8
Boarding
8.1
Crew
8.5
Overall
7.8
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Related info for your journey
Find useful and relevant information for your journey from Seattle to Barcelona-El Prat. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Barcelona-El Prat Airport?
Book flights to Barcelona-El Prat Airport if you plan to visit one of these locationsRoses
Calella
L'Hospitalet de Llobregat
El Prat de Llobregat
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Top 10 airlines flying from Seattle to Barcelona-El Prat
Discover the top 10 airlines that operate flights from Seattle to Barcelona-El Prat. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 10, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$369 | Average$491 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$454 | Average$954 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$470 | Average$889 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$478 | Average$577 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$480 | Average$1,159 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$483 | Average$800 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$486 | Average$1,117 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$570 | Average$770 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$586 | Average$837 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$589 | Average$750 | FlexibilityNo cancel fee | On-time76% |