Cheap flights from Seattle to Barcelona

How to find the cheapest flight from Seattle to Barcelona

All the information you need to plan the best SEA to S37 flight in 2022: compare Seattle to Barcelona flight prices with the expected peak season, weather and rainfall in Barcelona.

SEA - S37

Price

C$ 635 - C$ 1,208

S37

Temperature

9 - 24 °C

S37

Precipitation

20 - 91 mm

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

C$ 799

From Seattle/Tacoma Intl to Barcelona

One-way from

C$ 640

One-way flight from Seattle/Tacoma Intl to Barcelona

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

To save up to 37% on this flight, we recommend booking at least 46 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from Seattle to Barcelona from C$ 1,187 1-2 weeks out and tickets from C$ 1,465 for flights departing within the next 72 hours.

What is the cheapest month to fly from Seattle to Barcelona?

Due to multiple factors, expect to potentially pay more when booking in December. For low rates, April can be a great choice for travel to Barcelona. Flights to Barcelona from Seattle in April are about C$ 987 on average during April, but can be found for as low as C$ 716.

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

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Seattle to Barcelona as you normally would.

Cheap flights from Seattle to Barcelona in January, February 2022

The best prices found for SEA to Barcelona flights for January, February
21 Feb. - 28 Feb.
SEA

Seattle/Tacoma Intl

BCN

Barcelona-El Prat

1 stop

17h 36m
BCN

Barcelona-El Prat

SEA

Seattle/Tacoma Intl

1 stop

17h 46m
C$ 686

KLM

View Deal

Deal found 22/1/22

27 Feb. - 11 Mar.
SEA

Seattle/Tacoma Intl

BCN

Barcelona-El Prat

2 stops

23h 11m
BCN

Barcelona-El Prat

SEA

Seattle/Tacoma Intl

2 stops

19h 13m
C$ 689

Multiple Airlines

View Deal

Deal found 23/1/22

26 Feb. - 5 Mar.
SEA

Seattle/Tacoma Intl

BCN

Barcelona-El Prat

1 stop

17h 36m
BCN

Barcelona-El Prat

SEA

Seattle/Tacoma Intl

1 stop

35h 20m
C$ 698

KLM

View Deal

Deal found 21/1/22

Seattle to Barcelona 2022 flight deals

Cheap flights to Barcelona from Seattle found for this year
13 Mar. - 24 Mar.
SEA

Seattle/Tacoma Intl

BCN

Barcelona-El Prat

1 stop

17h 35m
BCN

Barcelona-El Prat

SEA

Seattle/Tacoma Intl

1 stop

18h 12m
C$ 686

KLM

View Deal

Deal found 20/1/22

13 Mar. - 28 Mar.
SEA

Seattle/Tacoma Intl

BCN

Barcelona-El Prat

1 stop

21h 31m
BCN

Barcelona-El Prat

SEA

Seattle/Tacoma Intl

1 stop

17h 30m
C$ 689

Multiple Airlines

View Deal

Deal found 22/1/22

14 Mar. - 25 Mar.
SEA

Seattle/Tacoma Intl

BCN

Barcelona-El Prat

1 stop

21h 31m
BCN

Barcelona-El Prat

SEA

Seattle/Tacoma Intl

1 stop

21h 24m
C$ 692

Multiple Airlines

View Deal

Deal found 22/1/22

One-way flights to Barcelona from Seattle

The cheapest one-way flights from Seattle to Barcelona
20 Mar.
SEA

Seattle/Tacoma Intl

BCN

Barcelona-El Prat

2 stops

20h 40m
C$ 473

Multiple Airlines

View Deal

Deal found 21/1/22

19 Jun.
SEA

Seattle/Tacoma Intl

BCN

Barcelona-El Prat

2 stops

22h 55m
C$ 488

Multiple Airlines

View Deal

Deal found 21/1/22

21 Jun.
SEA

Seattle/Tacoma Intl

BCN

Barcelona-El Prat

2 stops

22h 55m
C$ 497

Multiple Airlines

View Deal

Deal found 21/1/22

Related info for your journey

Useful info, stats and facts about Seattle to Barcelona flights.

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

Seattle/Tacoma Intl (SEA), located 18.4 km from the city centre, is the airport you fly out of when you book flights from Seattle to Barcelona. 7 airlines have flights from Seattle/Tacoma Intl to Barcelona on a regular basis. Booking flights from Seattle/Tacoma Intl to Barcelona should not be difficult; the airport handles an average of 0 outbound flights to Barcelona per day.

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

Some of the carriers operating flights from Seattle/Tacoma Intl to Barcelona that may be offering flexible cancellation policies are British Airways, American Airlines, and Delta. Our site will let you filter for all airlines offering greater flexibility due to COVID-19.

Can I find flights from Seattle to Barcelona for under C$ 700 on Cheapflights?

Yes, there are multiple flights from Seattle to Barcelona for under C$ 700. The cheapest flight booked recently is on KLM for just C$ 686, but on average you can expect to pay C$ 709.

What are the cheapest airlines flying from Seattle to Barcelona round-trip?

Our cheapest airline available from Seattle to Barcelona is KLM. Our recent data shows that you can find tickets from as low as C$ 686 on this airline. Additional options worth looking into are Delta and British Airways, starting at C$ 708 and C$ 709 round-trip. Users have found that KLM is 30% cheaper than the other options available to this destination.

What are the cheapest airlines to fly from Seattle to Barcelona one-way?

For one-way options, check prices for WestJet. According to our data, you can fly for as low as C$ 633. Users have also found prices from C$ 640 and C$ 815 on KLM and TAP AIR PORTUGAL, respectively.

What are the most popular airlines that fly from Seattle to Barcelona?

Consider American Airlines, British Airways or Delta when booking your flight. These represent the most popular airlines when flying from Seattle to Barcelona.

Can I fly to Barcelona from Seattle/Tacoma Intl right now?

Information is based on travel restrictions from Seattle/Tacoma Intl to Barcelona

Most visitors from Seattle/Tacoma Intl need to provide a negative COVID-19 test result and/or quarantine to enter Barcelona.

COVID-19 testing requirements
Visitors from Seattle/Tacoma Intl must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 72 for rt-pcr (naat) and 48 for antigen (quick-test) hours before departing to Barcelona.

Quarantine requirements
Visitors from Seattle/Tacoma Intl are not required to quarantine after entering Barcelona.

Can I fly back to Seattle/Tacoma Intl from Barcelona?

Returning to Seattle/Tacoma Intl from Barcelona

COVID-19 testing requirements
Visitors from Barcelona must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 24 hours before departing to Seattle/Tacoma Intl.

Quarantine requirements
Visitors from Barcelona are not required to quarantine after entering Seattle/Tacoma Intl.

Top 4 airlines flying from Seattle to Barcelona

The chart below displays the airlines Cheapflights users travelling from Seattle to Barcelona choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
AirlineCheapestAverageFlexibilityOn-timeCOVID-19 safety
American Airlines
CheapestC$ 480
AverageC$ 896
FlexibilityNo cancel fee
On-time71%
COVID-19 safety
British Airways
CheapestC$ 629
AverageC$ 892
FlexibilityNo cancel fee
On-time70%
COVID-19 safety
Lufthansa
CheapestC$ 665
AverageC$ 820
FlexibilityNo cancel fee
On-time76%
COVID-19 safety
Delta
CheapestC$ 694
AverageC$ 950
FlexibilityNo cancel fee
On-timeN/A
COVID-19 safety