Cheap flights from Barcelona-El Prat Airport to Seattle from $318
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Barcelona-El Prat Airport to Seattle departing on 9/8. 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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British Airways flights from Barcelona-El Prat Airport to Seattle
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Turkish Airlines flights from Barcelona-El Prat Airport to Seattle
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How to get the cheapest flight ticket from Barcelona-El Prat Airport to Seattle
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 typical price of a round-trip flight between Barcelona-El Prat Airport and Seattle?
What is the cheapest month to fly to Seattle?
In general, March is the cheapest month to fly from Barcelona-El Prat Airport to Seattle. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $708. If you don’t want to visit Seattle in March, then you should wait until May to fly from Barcelona-El Prat Airport, when ticket prices are also cheap, with an average price of $746.
What is the cheapest day to depart on your flight to Seattle?
On average, the least expensive day to fly to Seattle from Barcelona-El Prat Airport is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as $784. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Sunday is the most expensive day to depart from Barcelona-El Prat Airport because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $1,377.
What is the cheapest time of day to depart on your flight to Seattle?
Flying to Seattle from Barcelona-El Prat Airport in the morning is the least expensive time of day to depart. momondo users have found prices as low as $877 when looking at flights departing in the morning. Flights to Seattle are more costly at noon, with an average ticket price of $1,226. Departure times at noon fall within the peak daily travel times, which is why tickets can be more expensive.
How far in advance should I book a flight to Seattle?
You are more likely to see cheaper flights to Seattle from Barcelona-El Prat Airport when booking 9 weeks ahead of your departure date. In general, you can expect to find flights to Seattle for around $865 when searching 9 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seattle from Barcelona-El Prat Airport for as low as $736 on momondo.
What is the cheapest airline that flies from Barcelona-El Prat to Seattle/Tacoma Intl?
Icelandair, TAP AIR PORTUGAL, and Aer Lingus are the most popular carriers operating from Barcelona-El Prat to Seattle/Tacoma Intl
What airlines fly to Seattle?
British Airways, Delta and KLM are the top three most popular airlines that fly to Seattle from Barcelona-El Prat Airport according to our data. British Airways is the first choice among our users, with 34% of people opting to fly with this airline when traveling to Seattle. Keep in mind that there are 4 different airlines that fly to Seattle on a routine basis, so you have a few additional options to choose from.
When to book flights from Barcelona-El Prat Airport to Seattle
Cheap Barcelona-El Prat Airport to Seattle (BCN to SEA) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Barcelona-El Prat Airport to Seattle
How far is Barcelona-El Prat to Seattle/Tacoma Intl by plane?
A flight from Barcelona-El Prat to Seattle/Tacoma Intl will travel around 5412.9 mi. By plane, this route typically takes 14h 05m.
When did momondo last update prices for flights from Barcelona-El Prat Airport to Seattle/Tacoma Intl Airport?
Prices for flights from Barcelona-El Prat Airport to Seattle/Tacoma Intl Airport were last updated today.
How many operators does momondo search for flights from Barcelona-El Prat Airport to Seattle/Tacoma Intl Airport?
There are 4 operators available for flights from Barcelona-El Prat Airport to Seattle/Tacoma Intl Airport as of June 2025.
How old do you have to be to fly from Barcelona-El Prat Airport to Seattle/Tacoma Intl Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Barcelona-El Prat Airport to Seattle/Tacoma Intl Airport.
What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?
The required travel and health documents for your Seattle/Tacoma Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Seattle/Tacoma Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular airline from Barcelona-El Prat Airport to Seattle?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Barcelona-El Prat Airport to Seattle is British Airways (34% of total bookings). The next most popular airlines are Delta (30%), KLM (21%), and Air France (15%).
Best airlines flying from Barcelona-El Prat Airport to Seattle
Compare and see reviews for airlines that fly from Barcelona-El Prat Airport to Seattle with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $674 | Free Cancellation | Rating 7.5 1,463 reviews | |||
| PriceFrom $677 | Free Cancellation | Rating 7.8 1,358 reviews | |||
| PriceFrom $686 | Free Cancellation | Rating 8.0 7,950 reviews | |||
| PriceFrom $720 | Free Cancellation | Rating 6.6 7,008 reviews |
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Why should I use momondo to find a flight deal from Barcelona to Seattle?
momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Barcelona to Seattle. Millions of users trust and use momondo every year so you are in good hands.
Can I find flights from Barcelona to Seattle with flexible booking policies on momondo?
Yes. All flights to Seattle from Barcelona on momondo can be compared and filtered by various policies on offer, including flexible booking.
How can momondo help me find flights from Barcelona to Seattle?
Once you have performed a search for Barcelona to Seattle flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.
I’m not ready to book a flight from Barcelona to Seattle right now. Can momondo alert me if prices change?
Yes momondo offers price alerts on flights to Seattle from Barcelona. 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.