Cheap flights from Seattle to Barcelona-El Prat Airport from $307
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to Barcelona-El Prat Airport departing on 10/18. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Lufthansa flights from Seattle to Barcelona-El Prat Airport
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How to get the cheapest flight ticket from Seattle to Barcelona-El Prat Airport
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the cheapest month to fly to Barcelona-El Prat Airport?
The cheapest month to fly to Barcelona-El Prat Airport from Seattle is in November. Flight prices, which tend to average around $668, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of November, then book flights to Barcelona-El Prat Airport from Seattle during February instead. Flights to Barcelona-El Prat Airport in February, while not as cheap as those in November, still average around $679.
What is the cheapest day to depart on your flight to Barcelona-El Prat Airport?
The cheapest day to depart on your flight to Barcelona-El Prat Airport is on a Monday when prices can be found for as low as $862. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Thursday because tickets tend to average around $1,049. These prices are subject to change though, so be sure to set up a Price Alert for flights to Barcelona-El Prat Airport.
What is the cheapest time of day to depart on your flight to Barcelona-El Prat Airport?
Flying to Barcelona-El Prat Airport from Seattle in the evening is the least expensive time of day to depart. momondo users have found prices as low as $888 when looking at flights departing in the evening. If you have a flexible travel schedule, then try to avoid flying at noon when prices are $992 on average. Flights to Barcelona-El Prat Airport from Seattle at noon are generally more expensive because this time of day is more convenient for travelers’ schedules.
How far in advance should I book a flight to Barcelona-El Prat Airport?
You are more likely to see cheaper flights to Barcelona-El Prat Airport from Seattle when booking 25 weeks ahead of your departure date. In general, you can expect to find flights to Barcelona-El Prat Airport for around $904 when searching 25 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Barcelona-El Prat Airport from Seattle for as low as $778 on momondo.
What is the cheapest airline that flies from Seattle/Tacoma Intl to Barcelona-El Prat?
Icelandair, WestJet, and Scandinavian Airlines are the most popular carriers operating from Seattle/Tacoma Intl to Barcelona-El Prat
What airlines fly to Barcelona-El Prat Airport?
British Airways, Delta and Lufthansa are the top three most popular airlines that fly to Barcelona-El Prat Airport from Seattle according to our data. British Airways is the first choice among our users, with 44% of people opting to fly with this airline when traveling to Barcelona-El Prat Airport. Keep in mind that there are 15 different airlines that fly to Barcelona-El Prat Airport on a routine basis, so you have a few additional options to choose from.
When to book flights from Seattle to Barcelona-El Prat Airport
Cheap Seattle to Barcelona-El Prat Airport (SEA to BCN) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Seattle to Barcelona-El Prat Airport
How far is Seattle/Tacoma Intl to Barcelona-El Prat by plane?
There are 5412.9 mi between Seattle/Tacoma Intl and Barcelona-El Prat. 13h 10m is a normal flight duration for this route.
When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Barcelona-El Prat Airport?
Prices for flights from Seattle/Tacoma Intl Airport to Barcelona-El Prat Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to Barcelona-El Prat Airport?
As of April 2025, there are 15 operators available to choose from for flights from Seattle/Tacoma Intl Airport to Barcelona-El Prat Airport.
How old do you have to be to fly from Seattle/Tacoma Intl Airport to Barcelona-El Prat Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to Barcelona-El Prat Airport.
What documentation or ID do you need to fly to Barcelona-El Prat Airport?
The travel and health documents required for your trip to Barcelona-El Prat Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Barcelona-El Prat Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular airline from Seattle to Barcelona-El Prat Airport?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Seattle to Barcelona-El Prat Airport is British Airways (24% of total bookings). The next most popular airlines are Delta (14%), Lufthansa (10%), and United Airlines (7%).
Best airlines flying from Seattle to Barcelona-El Prat Airport
Compare and see reviews for airlines that fly from Seattle to Barcelona-El Prat Airport with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $416 | Free Cancellation | Rating 7.0 484 reviews | |||
| PriceFrom $445 | Free Cancellation | Rating 7.2 2,818 reviews | |||
| PriceFrom $489 | Free Cancellation | Rating 7.3 1,345 reviews | |||
| PriceFrom $502 | Free Cancellation | Rating 7.0 1,068 reviews | |||
| PriceFrom $507 | Free Cancellation | Rating 7.0 2,686 reviews | |||
| PriceFrom $568 | Free Cancellation | Rating 7.8 1,333 reviews | |||
| PriceFrom $578 | Free Cancellation | Rating 6.6 6,809 reviews | |||
| PriceFrom $581 | Free Cancellation | Rating 6.7 7,030 reviews | |||
| PriceFrom $582 | Free Cancellation | Rating 7.0 9,198 reviews | |||
| PriceFrom $584 | Free Cancellation | Rating 7.2 10,000 reviews |
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Why should I use momondo to find a flight deal from Seattle to Barcelona?
momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Seattle to Barcelona. momondo saves you time and could save you money on your trip.
Can I find flights from Seattle to Barcelona with flexible booking policies on momondo?
Flights from Seattle to Barcelona with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.
How can momondo help me find flights from Seattle to Barcelona?
Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Barcelona from Seattle.
I’m not ready to book a flight from Seattle to Barcelona right now. Can momondo alert me if prices change?
Yes momondo offers price alerts on flights to Barcelona from Seattle. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.