Cheap flights from Seattle to Barcelona from $306
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 departing on 4/28. 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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How to get the cheapest flight ticket from Seattle to Barcelona
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?
The month of November is, on average, the cheapest month to fly to Barcelona from Seattle, with most prices found around $669. If you don’t want to visit Barcelona in November, then you should wait until February to fly from Seattle, when ticket prices are also cheap, with an average price of $679.
What is the cheapest day to depart on your flight to Barcelona?
The cheapest day to depart from Seattle to Barcelona is on a Monday when prices can be found for as low as $862. On the other hand, Thursday is the most expensive day to depart from Seattle because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $1,049.
What is the cheapest time of day to depart on your flight to Barcelona?
In the evening is the cheapest time of day to fly from Seattle to Barcelona when you can find flight prices for as low as $888. Flying to Barcelona in the evening is an ideal time because this is during off-peak travel hours. If you have a flexible travel schedule, then try to avoid flying at noon when prices are $992 on average. Flights to Barcelona 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?
You are more likely to see cheaper flights to Barcelona from Seattle when booking 25 weeks ahead of your departure date. In general, you can expect to find flights to Barcelona 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 from Seattle for as low as $778 on momondo.
What is the cheapest airline that flies from Seattle/Tacoma Intl to Barcelona?
Icelandair, Scandinavian Airlines, and Aer Lingus are the most popular carriers operating from Seattle/Tacoma Intl to Barcelona
What airlines fly to Barcelona?
British Airways, Delta and Lufthansa are the top three most popular airlines that fly to Barcelona from Seattle according to our data. British Airways is the first choice among our users, with 45% of people opting to fly with this airline when traveling to Barcelona. Keep in mind that there are 15 different airlines that fly to Barcelona on a routine basis, so you have a few additional options to choose from.
Cheap Seattle to Barcelona flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Seattle to Barcelona
How far is Seattle/Tacoma Intl to Barcelona by plane?
A flight from Seattle/Tacoma Intl to Barcelona will travel around 5410.7 mi. A reasonable flight in good conditions will take 13h 10m.
When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Barcelona?
Prices for flights from Seattle/Tacoma Intl Airport to Barcelona are updated daily.
How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to Barcelona?
As of April 2025, there are 15 operators available to choose from for flights from Seattle/Tacoma Intl Airport to Barcelona.
How old do you have to be to fly from Seattle/Tacoma Intl Airport to Barcelona?
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 Seattle/Tacoma Intl Airport to Barcelona.
What documentation or ID do you need to fly to Barcelona?
The required travel and health documents for your Barcelona 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 Barcelona. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
Best airlines flying from Seattle to Barcelona
Compare and see reviews for airlines that fly from Seattle to Barcelona with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $416 | Free Cancellation | Rating 7.0 481 reviews | |||
| PriceFrom $445 | Free Cancellation | Rating 7.2 2,805 reviews | |||
| PriceFrom $489 | Free Cancellation | Rating 7.3 1,335 reviews | |||
| PriceFrom $502 | Free Cancellation | Rating 7.0 1,063 reviews | |||
| PriceFrom $507 | Free Cancellation | Rating 7.0 2,673 reviews | |||
| PriceFrom $540 | Free Cancellation | Rating 7.8 1,323 reviews | |||
| PriceFrom $580 | Free Cancellation | Rating 6.6 6,760 reviews | |||
| PriceFrom $581 | Free Cancellation | Rating 6.7 7,004 reviews | |||
| PriceFrom $584 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $588 | Free Cancellation | Rating 7.0 9,127 reviews |
Why use momondo?
Why should I use momondo to find a flight deal from Seattle to Barcelona?
To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Barcelona from Seattle.
Can I find flights from Seattle to Barcelona with flexible booking policies on momondo?
All flight searches from Seattle to Barcelona on momondo can be filtered to show those which offer flexible booking policies.
How can momondo help me find flights from Seattle to Barcelona?
Once you have performed a search for Seattle to Barcelona 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 Seattle to Barcelona right now. Can momondo alert me if prices change?
If you are not ready to book a flight from Seattle to Barcelona now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Barcelona and let you know when they change.