Cheap flights from Seattle to Barcelona from C$ 683
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 14/5. Fares are subject to change and may not be available on all flights or dates of travel.
Cheap flight deals from Seattle to Barcelona
Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Barcelona (S37). 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 1 April 2025.
Round-trip from | C$ 864 |
---|---|
One-way from | C$ 683 |
Popular in | June |
Cheapest in | November |
Average price | C$ 1,171 |
Find flight deals from Seattle to Barcelona
Cheapest flights from Seattle to BarcelonaExplore the most affordable flight options available from Seattle to Barcelona. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 1 April 2025.
Explore the most affordable flight options available from Seattle to Barcelona. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 1 April 2025.
Cheapflights Fare Finder
Customize your flight search to find flights from Seattle to Barcelona 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 629,999 searches. Data last updated 1 April 2025.
Use the filters below to find and compare flights from Seattle to Barcelona that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
SeattleBarcelona
SEA - BCN
SEABCN
Seattle/Tacoma Intl
Wed 21/5
4:00 p.m.-6:10 p.m.
1 stop17h 10m
Barcelona-El Prat
Sun 1/6
7:00 p.m.-1:50 p.m.
1 stop27h 50m
SeattleBarcelona
SEA - BCN
SEABCN
Seattle/Tacoma Intl
Tue 13/5
2:05 p.m.-12:25 p.m.
1 stop13h 20m
Barcelona-El Prat
Wed 21/5
7:20 a.m.-8:28 p.m.
2 stops22h 08m
SeattleBarcelona
SEA - BCN
SEABCN
Seattle/Tacoma Intl
Tue 13/5
2:05 p.m.-12:25 p.m.
1 stop13h 20m
Barcelona-El Prat
Wed 21/5
2:25 p.m.-8:28 p.m.
1 stop15h 03m
SeattleBarcelona
SEA - BCN
SEABCN
Seattle/Tacoma Intl
Mon 21/4
8:20 p.m.-8:35 p.m.
1 stop15h 15m
Barcelona-El Prat
Fri 16/5
12:20 p.m.-9:03 p.m.
1 stop17h 43m
SeattleBarcelona
SEA - BCN
SEABCN
Seattle/Tacoma Intl
Sat 26/4
7:00 p.m.-2:45 p.m.
1 stop34h 45m
Barcelona-El Prat
Mon 5/5
3:55 p.m.-8:40 p.m.
1 stop13h 45m
SeattleBarcelona
SEA - BCN
SEABCN
Seattle/Tacoma Intl
Tue 8/4
7:10 a.m.-11:55 a.m.
1 stop19h 45m
Barcelona-El Prat
Thu 17/4
9:20 a.m.-8:45 p.m.
2 stops20h 25m
SeattleBarcelona
SEA - BCN
SEABCN
Seattle/Tacoma Intl
Wed 14/5
5:40 p.m.-8:05 p.m.
1 stop17h 25m
Barcelona-El Prat
Wed 21/5
10:05 a.m.-4:00 p.m.
1 stop14h 55m
SeattleBarcelona
SEA - BCN
SEABCN
Seattle/Tacoma Intl
Tue 29/4
7:08 a.m.-1:15 p.m.
2 stops21h 07m
Barcelona-El Prat
Wed 7/5
12:15 p.m.-1:19 p.m.
2 stops34h 04m
SeattleBarcelona
SEA - BCN
SEABCN
Seattle/Tacoma Intl
Sun 11/5
7:20 a.m.-7:50 a.m.
1 stop15h 30m
Barcelona-El Prat
Fri 23/5
12:15 p.m.-7:37 p.m.
1 stop16h 22m
SeattleBarcelona
SEA - BCN
SEABCN
Seattle/Tacoma Intl
Mon 21/4
7:10 p.m.-11:10 p.m.
1 stop19h 00m
Barcelona-El Prat
Thu 15/5
6:30 p.m.-5:15 p.m.
1 stop31h 45m
Best time to book a flight from Seattle to Barcelona
Have a flexible travel schedule? Discover the best time to fly to Barcelona from Seattle with our price prediction graph.
Cheapflights Insights
Everything you need to know about your flight from Seattle to Barcelona
How far ahead should I book a flight from Seattle to Barcelona?
Use this chart to determine the optimal time to book a round-trip flight from Seattle to Barcelona. Price data was last updated on 28 March 2025.
The price you pay for your flight from Seattle to Barcelona may vary depending on when you book. For the best chance of a lower fare, look to book 31 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?
Currently, January is the cheapest month in which you can book a flight from Seattle to Barcelona (average of C$ 604). Flying from Seattle to Barcelona in July is currently the most expensive (average of C$ 802). 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. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 1 April 2025.
One of the essential ways to save on airfare from Seattle to Barcelona is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight in the afternoon could potentially save you up to 38% on airfare.
Rainfall in Barcelona by month
Plan your trip to Barcelona by taking into account the average rainfall totals by month.
In terms of precipitation, rainfall in Barcelona ranges from 20.0 - 91.0 mm per month. October is typically the wettest month, when rainfall can reach 91.0 mm. July is typically the driest time to visit Barcelona when rainfall is around 20.0 mm.
Temperature in Barcelona by month
Plan your trip to Barcelona by taking into account the average temperature totals by month.
If weather is an important factor for your trip to Barcelona, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 24.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 9.0 C).
Reviews of airlines servicing Barcelona
Get insights into the airlines that provide service to Barcelona. 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. Reviews last updated 1 April 2025.
Peruse reviews from past customers who have flown with Delta, KLM and Finnair from Seattle to Barcelona to help guide your decision. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Crew
Entertainment
Comfort
Food
Boarding
Overall
Reviews
Aaron,Oct 2024
LAX - LHR
Crew
Entertainment
Comfort
Food
Boarding
Overall
Reviews
Aaron,Oct 2024
LAX - LHR
Crew
Entertainment
Comfort
Food
Boarding
Overall
Reviews
Aaron,Oct 2024
LAX - LHR
Crew
Entertainment
Comfort
Food
Boarding
Overall
Reviews
Aaron,Oct 2024
LAX - LHR
Crew
Entertainment
Comfort
Food
Boarding
Overall
Reviews
Aaron,Oct 2024
LAX - LHR
Crew
Entertainment
Comfort
Food
Boarding
Overall
Reviews
Aaron,Oct 2024
LAX - LHR
Related info for your journey
Find useful and relevant information for your journey from Seattle to Barcelona. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for Seattle to Barcelona
See prices for flight routes from nearby airports that may be better suited for you.
Top airline flying from Seattle to Barcelona
Discover the top airline that operate flights from Seattle to Barcelona. 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 629,999 searches. Data last updated 1 April 2025.
Fly with Cheapflights
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How does Cheapflights help users find flights from Seattle to Barcelona?
Cheapflights makes it easy to find Seattle to Barcelona flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.
Why should you use Cheapflights to find cheap flight tickets from Seattle to Barcelona?
Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Seattle to Barcelona for you. Better yet — we are completely free to use.
Can Cheapflights find flights from Seattle to Barcelona with no change fees?
Certainly. Search results for flights to Barcelona from Seattle shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.
Can Cheapflights notify me if prices for flights from Seattle to Barcelona become cheaper?
Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Barcelona from Seattle today and book when prices fit your budget.