Question 1

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

Accepted Answer

Our cheapest airline available from Seattle to Barcelona-El Prat Airport is United Airlines. Our recent data shows that you can find tickets from as low as C$ 901 on this airline. Additional options worth looking into are Lufthansa and Delta, starting at C$ 915 and C$ 920 round-trip. You may be able to fly from Seattle to Barcelona-El Prat Airport for 25% less than the average price by searching for these airlines.

Question 2

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

Accepted Answer

The cheapest airlines for a one-way flight from Seattle to Barcelona-El Prat Airport are United Airlines (C$ 660), Turkish Airlines (C$ 686), and British Airways (C$ 782).

Question 3

How far ahead should I book a flight from Seattle to Barcelona-El Prat Airport?

Accepted Answer

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 31 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

Question 4

What is the cheapest month to book a flight from Seattle to Barcelona-El Prat Airport?

Accepted Answer

Currently, January is the cheapest month in which you can book a flight from Seattle to Barcelona-El Prat Airport (average of C$ 604). Flying from Seattle to Barcelona-El Prat Airport in July is currently the most expensive (average of C$ 789). 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.

Question 5

What is the cheapest day to fly from Seattle to Barcelona-El Prat Airport?

Accepted Answer

Travelers seeking maximum savings on their Seattle to Barcelona-El Prat Airport flight should consider departing on Wednesday evenings when fares are most often at their lowest. Thursday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Question 6

E

Accepted Answer

In terms of precipitation, rainfall in Barcelona-El Prat Airport 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-El Prat Airport when rainfall is around 20.0 mm.

Question 7

E

Accepted Answer

If weather is an important factor for your trip to Barcelona-El Prat Airport, 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).

Question 8

What is the cheapest day to fly round-trip from Seattle to Barcelona-El Prat Airport?

Accepted Answer

Travellers have found that booking a Sunday departure is the best way to save up to 107% on the cost of booking your flights compared to booking on days of the week where this route is of high demand.

Question 9

How far in advance should I book a flight from Seattle to Barcelona-El Prat Airport?

Accepted Answer

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 32 days in advance, which can save you up to 32% on flights from Seattle to Barcelona-El Prat Airport compared to booking the week you need them. Waiting 32 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at C$ 1,094. For sooner than that we have options available in the next 3 days from C$ 1,608.

Question 10

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

Accepted Answer

Our data shows that November tends to be the cheapest month to fly to Barcelona-El Prat Airport from Seattle. Users have commonly found prices around C$ 1,209 for the month, but tickets can be as low as C$ 662. Due to multiple factors, prepare for potentially higher prices in June.

Question 11

What is the cheapest time of day to fly from SEA to BCN?

Accepted Answer

One of the essential ways to save on airfare from Seattle to Barcelona-El Prat Airport 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.

Question 12

What airport do you fly from for flights from Seattle to Barcelona-El Prat?

Accepted Answer

Located just 18.4 km from the city centre, Seattle/Tacoma Intl is the airport most travellers will use when flying to Barcelona-El Prat from Seattle. Booking flights from Seattle/Tacoma Intl (SEA) to Barcelona-El Prat should be relatively easy as there are 0 daily outbound flights to Barcelona-El Prat from 1 airline.

Question 13

Can I find deals for flights from Seattle to Barcelona-El Prat that include hotel bookings?

Accepted Answer

Yes. In addition to deals on Seattle to Barcelona-El Prat flights, Cheapflights offers vacation packages that include both flights and hotel.

Question 14

How can I find direct flights from Seattle to Barcelona-El Prat?

Accepted Answer

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to Barcelona-El Prat.

Question 15

Can I find deals for business class flights from Seattle to Barcelona-El Prat?

Accepted Answer

Yes. Cheapflights offers flight deals from Seattle to Barcelona-El Prat by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

Question 16

How does Cheapflights help users find flights from Seattle to Barcelona-El Prat?

Accepted Answer

Deals for Seattle to Barcelona-El Prat flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Question 17

Why should you use Cheapflights to find cheap flight tickets from Seattle to Barcelona-El Prat?

Accepted Answer

Millions of users choose and trust Cheapflights to book the best flight deals from Seattle to Barcelona-El Prat for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Question 18

Can Cheapflights find flights from Seattle to Barcelona-El Prat with no change fees?

Accepted Answer

Yes, we can. To see specific flights from Seattle to Barcelona-El Prat with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Question 19

Can Cheapflights notify me if prices for flights from Seattle to Barcelona-El Prat become cheaper?

Accepted Answer

Yes, Cheapflights offers price alerts on Seattle to Barcelona-El Prat flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

Round-trip from	C$ 901
One-way from	C$ 660
Popular in	June
Cheapest in	November
Average price	C$ 1,725

Cheap flights from Seattle to Barcelona-El Prat Airport from C$ 660

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 19/9. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Seattle to Barcelona-El Prat

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Seattle to Barcelona-El Prat

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 12 June 2025.

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 12 June 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Seattle to Barcelona-El Prat Airport that are best for you.

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.

Cheapflights Insights

Everything you need to know about your flight from Seattle to Barcelona-El Prat Airport

How far ahead should I book a flight from Seattle to Barcelona-El Prat Airport?

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

What is the cheapest month to book a flight from Seattle to Barcelona-El Prat Airport?

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 12 June 2025.

Rainfall in Barcelona-El Prat by month

Plan your trip to Barcelona-El Prat by taking into account the average rainfall totals by month.

Temperature in Barcelona-El Prat by month

Plan your trip to Barcelona-El Prat by taking into account the average temperature totals by month.

Reviews of airlines servicing Barcelona-El Prat

Read through reviews of airlines operating flights from Seattle to Barcelona, such as Delta, Alaska Airlines and Austrian Airlines. 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 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.

What airport do you fly from for flights from Seattle to Barcelona-El Prat?

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

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

Can I find deals for flights from Seattle to Barcelona-El Prat that include hotel bookings?

How can I find direct flights from Seattle to Barcelona-El Prat?

Can I find deals for business class flights from Seattle to Barcelona-El Prat?

What is the cheapest month to book a flight from Seattle to Barcelona-El Prat Airport?

Travelling to a place near Seattle?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Other flights to Barcelona-El Prat

Explore flights to Barcelona-El Prat departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 12 June 2025.

Top airline flying from Seattle to Barcelona-El Prat

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Seattle to Barcelona-El Prat?

Why should you use Cheapflights to find cheap flight tickets from Seattle to Barcelona-El Prat?

Can Cheapflights find flights from Seattle to Barcelona-El Prat with no change fees?

Can Cheapflights notify me if prices for flights from Seattle to Barcelona-El Prat become cheaper?

100% Free

Book with Flexibility

Travel Smart

Cheapest flights from Seattle to Barcelona-El Prat
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 12 June 2025.