Cheap flights from Seattle-Tacoma International (SEA) to Barcelona (BCN)

Know your dates, get live prices in seconds:

From
To
Depart
Return
Any month
Compare vs. Cheapflights |
From
To
Depart
Depart
Time
Anytime
From
To
Depart
Depart
Time
Anytime
From
To
Depart
Depart
Time
Anytime
From
To
Depart
Depart
Time
Anytime
From
To
Depart
Depart
Time
Anytime
From
To
Depart
Depart
Time
Anytime

We work with more than 300 partners to bring you better travel deals

The best prices from Seattle-Tacoma International to Barcelona are usually found in April or August, booked 45 days in advance, depart on a Tuesday or Wednesday and return on a Wednesday

How to find the cheapest flight from
Seattle-Tacoma International (SEA) to Barcelona (BCN)

All the information you need to plan the best SEA to BCN flight in 2021: compare Seattle-Tacoma International to Barcelona flight prices with the expected peak season, weather and rainfall in Barcelona.
SEA - S37
Price
$635 - $1,208
S37
Temperature
57.2 - 84.2 °F
S37
Rainfall
0.9 - 3.3 inches

Popular in

December

High demand for flights, 35% potential price rise

Cheapest in

April

Best time to find cheap flights, 19% potential price drop

Round-trip from

$635

From Seattle-Tacoma International to Barcelona

One-way from

$319

One-way flight from Seattle-Tacoma International to Barcelona

Flight route prices based on searches on Cheapflights within the last 3 days, monthly prices based on aggregated historical data.
What is the cheapest day to fly round-trip from Seattle-Tacoma International to Barcelona?

Saturday flights are generally found to be more expensive for flights from Seattle-Tacoma International to Barcelona. This shouldn’t discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Barcelona.

How far in advance should I book a flight from Seattle-Tacoma International to Barcelona?

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 35 days in advance, which can save you up to 20% on flights from Seattle-Tacoma International to Barcelona compared to booking the week you need them. Waiting 35 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 $801. For sooner than that we have options available in the next 3 days from $850.

What is the cheapest month to fly from Seattle-Tacoma International to Barcelona?

November is one of the best times of the year to fly to Barcelona from Seattle-Tacoma International. Prices for November average $804 per person but you can even find prices for as low as $455. The most expensive prices can be found in the month of June. Opting for a November flight can save you 22% on your journey compared to booking in November

When is the cheapest time to fly from Seattle-Tacoma International to Barcelona (SEA - S37)?

It’s optimal to fly from Seattle-Tacoma International to Barcelona in the evening. By choosing this option you can save up to 13% on the cost of your flight, compared to a flight in the afternoon.

Cheap flights from Seattle-Tacoma International to Barcelona in May, June 2021

The best prices found for SEA to BCN flights for May, June
29 May - 7 Jun
$657pp
SEA
Seattle/Tacoma Intl
Multiple Airlines
   
2 STOPS
BCN
Barcelona-El Prat
BCN
Barcelona-El Prat
Multiple Airlines
   
2 STOPS
SEA
Seattle/Tacoma Intl
29 May - 8 Jun
$659pp
SEA
Seattle/Tacoma Intl
Multiple Airlines
   
2 STOPS
BCN
Barcelona-El Prat
BCN
Barcelona-El Prat
Multiple Airlines
   
2 STOPS
SEA
Seattle/Tacoma Intl
29 May - 6 Jun
$667pp
SEA
Seattle/Tacoma Intl
Multiple Airlines
   
2 STOPS
BCN
Barcelona-El Prat
BCN
Barcelona-El Prat
Multiple Airlines
   
2 STOPS
SEA
Seattle/Tacoma Intl

Seattle-Tacoma International to Barcelona 2021 flight deals

Cheap flights to Barcelona from Seattle-Tacoma International found for this year
17 Sep - 24 Sep
$599pp
SEA
Seattle/Tacoma Intl
Multiple Airlines
   
2 STOPS
BCN
Barcelona-El Prat
BCN
Barcelona-El Prat
Multiple Airlines
   
2 STOPS
SEA
Seattle/Tacoma Intl
24 Sep - 8 Oct
$600pp
SEA
Seattle/Tacoma Intl
Multiple Airlines
   
2 STOPS
BCN
Barcelona-El Prat
BCN
Barcelona-El Prat
Multiple Airlines
   
2 STOPS
SEA
Seattle/Tacoma Intl
22 Oct - 1 Nov
$604pp
SEA
Seattle/Tacoma Intl
Multiple Airlines
   
2 STOPS
BCN
Barcelona-El Prat
BCN
Barcelona-El Prat
Multiple Airlines
     
3 STOPS
SEA
Seattle/Tacoma Intl

Last minute flights from Seattle-Tacoma International to Barcelona

Late deals on round-trip flights to Barcelona from Seattle-Tacoma International, departing today and this week
21 May - 26 May
$2,144pp
SEA
Seattle/Tacoma Intl
American Airlines
   
2 STOPS
BCN
Barcelona-El Prat
BCN
Barcelona-El Prat
American Airlines
   
2 STOPS
SEA
Seattle/Tacoma Intl
21 May - 26 May
$2,156pp
SEA
Seattle/Tacoma Intl
American Airlines
   
2 STOPS
BCN
Barcelona-El Prat
BCN
Barcelona-El Prat
American Airlines
 
1 STOP
SEA
Seattle/Tacoma Intl

One-way flights to Barcelona from Seattle-Tacoma International

The cheapest one-way flights from Seattle-Tacoma International to Barcelona
12:05 pm - 1:10 pm
Multiple Airlines
1 Stop
16h 05m
SEA - BCN
Multiple Airlines
$319
Kiwi.com
4:40 am - 1:10 pm
Multiple Airlines
1 Stop
23h 30m
SEA - BCN
Multiple Airlines
$331
Kiwi.com
2:05 am - 5:10 am
Multiple Airlines
2 Stops
42h 05m
SEA - BCN
Multiple Airlines
$325
Kiwi.com

Related info for your journey

Useful info, stats and facts about <span class="emphasized">Seattle-Tacoma International</span> to <span class="emphasized">Barcelona</span> flights.

Flight FAQs

From Seattle-Tacoma International to Barcelona

Are flight prices decreasing from Seattle to Barcelona due to COVID-19 (coronavirus)?

At this time, Cheapflights has noticed price decreases for many domestic flights due to COVID-19. Travel is not necessarily recommended at this time, and flights may be prone to cancellation: please check with local authorities in both Seattle and Barcelona for travel alerts, and be sure to review the airline's cancellation policy and travel advisories before booking. For more information, please view our post on what to know about COVID-19 (coronavirus) and travel.

What safety measures are being taken by airlines flying from Seattle/Tacoma Intl to Barcelona to control the spread of COVID-19?

New policies can now be found on Alaska Airlines to help keep travelers safe while flying. Airline carriers are regularly disinfecting and sanitizing their aircraft. Masks are provided and are mandatory while on board. Pre-flight testing for symptoms and antibodies, alongside socially distanced seating (for a limited time) will work towards keeping travelers safer while flying from Seattle/Tacoma Intl to Barcelona. Policies will vary by airline.

Which airlines flying from Seattle/Tacoma Intl to Barcelona have flexible cancellations due to COVID-19?

Some of our airline partners flying from Seattle/Tacoma Intl to Barcelona have new flexible policies in place due to COVID-19. British Airways, Delta, and Lufthansa are some of the carriers where you may find flexible cancellation policies. You can use our site to filter for airlines like British Airways with this kind of flexibility.

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

For a flight from Seattle to Barcelona, you will be flying from Seattle/Tacoma Intl. Seattle/Tacoma Intl (SEA) is just 11.4 mi from the center of the city. Seattle/Tacoma Intl is the only Seattle airport and it handles 0 outbound flights to Barcelona per day. 16 airlines have flights to Barcelona from Seattle/Tacoma Intl on a regular basis.

Can I find flights from Seattle-Tacoma International to Barcelona for under $600 on Cheapflights?

Yes, there are multiple flights from Seattle-Tacoma International to Barcelona for under $600. The cheapest flight booked recently is on Multiple Airlines for just $599, but on average you can expect to pay $656.

Are there nonstop flights from Seattle-Tacoma International to Barcelona for under $600 on Cheapflights?

There are no nonstop flights from Seattle-Tacoma International to Barcelona, but Cheapflights can provide you with all the information you need to find the fastest route with the fewest stops.

Are there last-minute flights available from Seattle-Tacoma International to Barcelona for under $2,200?

There are currently 2+ open flights from Seattle-Tacoma International to Barcelona within the next 7 days for less than $2,200.

Is Seattle weather warmer or cooler than Barcelona?

Temperatures around the 84 °F's can be experienced in August. The weather in Barcelona is hotter than in Seattle. Plan for potential changes in flight availability as peak weather approaches in this location.

Related searches

Flights to Barcelona from Seattle-Tacoma International
Flights to Seattle-Tacoma International Flights to Barcelona

Rent a Car

Car Rentals in Barcelona Car Rentals at Barcelona Intl

Destination information for Barcelona

Things to know before you go - useful duration and weather info for your trip from Seattle-Tacoma International to Barcelona.
Today's exchange rate
$1 = €0.83
Average temperature for May in Barcelona
71.6 °F
Avg rainfall for May in Barcelona
1.9 ″

Airports servicing Seattle

Airports servicing Barcelona

Gerona (GRO)
Reus (REU)

Top 10 airlines flying from Seattle-Tacoma International to Barcelona

The chart below displays the airlines Cheapflights users traveling from Seattle-Tacoma International to Barcelona choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
Airline Cheapest Average Flexibility On-time COVID-19 safety
Alaska Airlines
$264 $365 No cancel fee 75%
SWISS
$477 $529 No cancel fee 79%
Finnair
$348 $533 No cancel fee 76%
Norwegian
$597 $763 No cancel fee 74%
Air Canada
$468 $849 No cancel fee 67%
Iberia
$452 $852 No cancel fee 77%
American Airlines
$278 $918 No cancel fee 71%
Aer Lingus
$498 $945 No cancel fee N/A
Delta
$525 $964 No cancel fee N/A
Lufthansa
$507 $967 No cancel fee 76%
Home Europe Spain Barcelona Cheap flights from Seattle-Tacoma International to Barcelona