Cheap flights from Seattle to Barcelona from C$ 523
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 3/8. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
Discover deals from 900+ travel sites with momondo.
Save money when you book flights with momondo
Big names, great deals
Big names, great deals
Search 100s of travel sites to compare prices.Filter for what you want
Filter for what you want
Free Wi-Fi? Early arrival? Instantly customize your resultsTrusted and free
Trusted and free
We’re completely free to use - no hidden charges or fees.Price Alerts
Price Alerts
Not ready to book? to track prices.Find the cheapest flights from Seattle to Barcelona
Cheap round-trip flights
Cheap one-way flights
Cheap last-minute flights
Icelandair flights from Seattle to Barcelona-El Prat Airport
Our best Icelandair deals on Seattle to Barcelona-El Prat Airport flight tickets
Scandinavian Airlines flights from Seattle to Barcelona-El Prat Airport
Our best Scandinavian Airlines deals on Seattle to Barcelona-El Prat Airport flight tickets
See travel insights to Barcelona from
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 C$ 912, are often lower during this time because this is during the off-season. If you are unable to visit Barcelona-El Prat Airport during the month of November, then departing from Seattle during the month February is also very affordable. Most momondo users find prices during this month for around C$ 923.
What is the cheapest day to depart on your flight to Barcelona-El Prat Airport?
The cheapest day to depart from Seattle to Barcelona-El Prat Airport is on a Monday. Travellers who choose to depart for Barcelona-El Prat Airport on a Monday will often find tickets for as low as C$ 844. On the other hand, Tuesday is the most expensive day to depart from Seattle because it is more convenient for both business and leisure travellers. As a result, prices tend to be around C$ 1,750.
What is the cheapest time of day to depart on your flight to Barcelona-El Prat Airport?
Our most recent data shows that the best time of day to fly to Barcelona-El Prat Airport is in the afternoon. Flights from Seattle to Barcelona-El Prat Airport during this time can be as low as C$ 902. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are C$ 1,434 on average. Flights to Barcelona-El Prat Airport from Seattle in the morning are generally more expensive because this time of day is more convenient for travellers’ 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 weeks ahead of your departure date. In general, you can expect to find flights to Barcelona-El Prat Airport for around C$ 1,205 when searching 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 C$ 1,005 on momondo.
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 8711.2 km between Seattle/Tacoma Intl and Barcelona-El Prat. In terms of flight time, this usually takes a little over 13h 35m.
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 were last updated today.
How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to Barcelona-El Prat Airport?
As of June 2025, there is 1 operator 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?
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-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 flights between Seattle and Barcelona-El Prat Airport, the leading airline is Lufthansa, making up 100% of the total bookings.
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 C$ 706 | Free Cancellation | Rating 6.8 7,200 reviews |
Travelling to a place near Barcelona?
Book flights to Barcelona if you plan to visit one of these locationsWhy use momondo?
Why should I use momondo to find a flight deal from Seattle to Barcelona?
We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Seattle to Barcelona for you.
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?
momondo helps you find the best flight between Seattle and Barcelona by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.
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.