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Cheap flights from Seattle to Barcelona-El Prat Airport from C$ 489

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 27/3. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — BCN
4 Feb — 11 Feb1
1 adult

Cheap flight deals from Seattle to Barcelona-El Prat

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Barcelona-El Prat (BCN). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 30 January 2025.

Round-trip from

C$ 863

One-way from

C$ 489

Popular in

July

Cheapest in

November

Average price

C$ 1,021
United Airlines
  • United Airlines
  • 2/3-11/3
  • 4 total stops
  • 51h 49m total
  • Seattle to Barcelona
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27/3
  • 27/3
  • 2 total stops
  • 24h 44m total
  • Seattle to Barcelona
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Highest demand for flights based on searches. 22% potential increase in price (C$ 541 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (C$ 69 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2025
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Find flight deals from Seattle to Barcelona-El Prat

Cheapest flights from Seattle to Barcelona-El Prat
Explore the most affordable flight options available from Seattle to Barcelona-El Prat. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 30 January 2025.

Sun 2/38:10 a.m.SEA - BCN
1 stop15h 10mUnited Airlines
Tue 11/311:15 a.m.BCN - SEA
3 stops36h 39mUnited Airlines
Deal found 30/1C$ 863
Wed 19/26:50 p.m.SEA - BCN
1 stop15h 55mMultiple Airlines
Tue 25/211:00 a.m.BCN - SEA
1 stop21h 24mMultiple Airlines
Deal found 30/1C$ 883
Sun 19/1010:55 p.m.SEA - BCN
1 stop22h 05mDelta
Tue 18/1110:15 a.m.BCN - SEA
1 stop21h 08mDelta
Deal found 30/1C$ 896
Sun 19/103:45 p.m.SEA - BCN
1 stop14h 00mIcelandair
Sun 16/1111:45 a.m.BCN - SEA
1 stop14h 15mIcelandair
Deal found 30/1C$ 900
Wed 26/26:15 a.m.SEA - BCN
1 stop17h 25mKLM
Mon 3/31:00 p.m.BCN - SEA
1 stop31h 37mKLM
Deal found 30/1C$ 909
Tue 18/34:10 p.m.SEA - BCN
1 stop14h 40mLufthansa
Fri 28/37:45 a.m.BCN - SEA
1 stop14h 35mLufthansa
Deal found 29/1C$ 929
Wed 26/23:24 p.m.SEA - BCN
2 stops18h 51mSWISS
Mon 3/32:55 p.m.BCN - SEA
2 stops40h 47mSWISS
Deal found 30/1C$ 942
Sun 16/38:00 p.m.SEA - BCN
1 stop30h 30mTurkish Airlines
Sun 23/32:30 p.m.BCN - SEA
1 stop35h 35mTurkish Airlines
Deal found 30/1C$ 1,008
Mon 20/101:30 p.m.SEA - BCN
1 stop13h 35mBritish Airways
Sun 16/1111:15 a.m.BCN - SEA
1 stop14h 40mBritish Airways
Deal found 30/1C$ 1,023
Sun 23/311:48 p.m.SEA - BCN
2 stops27h 57mTAP AIR PORTUGAL
Mon 7/410:40 p.m.BCN - SEA
2 stops31h 50mTAP AIR PORTUGAL
Deal found 30/1C$ 1,574
Tue 17/67:05 a.m.SEA - BCN
1 stop20h 20mWestJet
Sun 29/62:25 p.m.BCN - SEA
2 stops31h 06mWestJet
Deal found 29/1C$ 1,647

Find flights from Seattle to Barcelona-El Prat within your budget

Customize your flight search to find flights from Seattle to Barcelona-El Prat that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 30 January 2025.

Fly from

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Fly to

Any airport

Route

Depart

Return

Price

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Sun 2/3

8:10 a.m.-8:20 a.m.

1 stop15h 10m

Barcelona-El Prat

Tue 11/3

11:15 a.m.-3:54 p.m.

3 stops36h 39m

C$ 863

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Wed 19/2

6:50 p.m.-7:45 p.m.

1 stop15h 55m

Barcelona-El Prat

Tue 25/2

11:00 a.m.-11:24 p.m.

1 stop21h 24m

C$ 883

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Wed 26/2

6:15 a.m.-8:40 a.m.

1 stop17h 25m

Barcelona-El Prat

Mon 3/3

1:00 p.m.-11:37 a.m.

1 stop31h 37m

C$ 909

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Tue 18/3

4:10 p.m.-2:50 p.m.

1 stop14h 40m

Barcelona-El Prat

Fri 28/3

7:45 a.m.-2:20 p.m.

1 stop14h 35m

C$ 929

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Wed 26/2

3:24 p.m.-7:15 p.m.

2 stops18h 51m

Barcelona-El Prat

Mon 3/3

2:55 p.m.-10:42 p.m.

2 stops40h 47m

C$ 942

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Sat 22/2

10:55 p.m.-8:00 a.m.

1 stop24h 05m

Barcelona-El Prat

Sat 8/3

6:00 a.m.-11:37 a.m.

1 stop14h 37m

C$ 981

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Sun 16/3

8:00 p.m.-10:45 p.m.

1 stop18h 45m

Barcelona-El Prat

Sun 23/3

11:25 a.m.-6:05 p.m.

1 stop38h 40m

C$ 1,008

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Wed 26/3

3:35 p.m.-1:10 p.m.

1 stop13h 35m

Barcelona-El Prat

Mon 14/4

3:45 p.m.-8:40 p.m.

1 stop13h 55m

C$ 1,166

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Sun 23/3

11:48 p.m.-11:45 a.m.

2 stops27h 57m

Barcelona-El Prat

Mon 7/4

10:40 p.m.-9:30 p.m.

2 stops31h 50m

C$ 1,574

SeattleBarcelona

SEA - BCN

SEABCN

Seattle/Tacoma Intl

Tue 17/6

7:05 a.m.-12:25 p.m.

1 stop20h 20m

Barcelona-El Prat

Sun 29/6

2:25 p.m.-12:31 p.m.

2 stops31h 06m

C$ 1,647

Flights are sorted by cheapest round-trip flights first.

Deals found on 30/1

Showing 1-10 of 17 results
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Best time to book a flight from Seattle to Barcelona-El Prat

Have a flexible travel schedule? Discover the best time to fly to Barcelona-El Prat from Seattle with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Travel insights for flights from Seattle to Barcelona-El Prat

Get recent, data-driven insights about flights from Seattle to Barcelona-El Prat including ideal travel times, pricing trends, and more.

How far ahead should I book a flight from Seattle to Barcelona-El Prat Airport?

Use this chart to determine the optimal time to book a round-trip flight from Seattle to Barcelona-El Prat. Price data was last updated on 24 January 2025.

The price you pay for your flight from Seattle to Barcelona-El Prat Airport may vary depending on when you book. For the best chance of a lower fare, look to book 31 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from Seattle to Barcelona-El Prat Airport?

Currently, January is the cheapest month in which you can book a flight from Seattle to Barcelona-El Prat Airport (average of C$ 604). Flying from Seattle to Barcelona-El Prat Airport in July is currently the most expensive (average of C$ 802). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from SEA to BCN?

Find hourly flight availability from Seattle to Barcelona-El Prat. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 30 January 2025.

One of the essential ways to save on airfare from Seattle to Barcelona-El Prat Airport is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight in the afternoon could potentially save you up to 38% on airfare.

Rainfall in Barcelona-El Prat by month

Plan your trip to Barcelona-El Prat by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Barcelona-El Prat Airport ranges from 20.0 - 91.0 mm per month. October is typically the wettest month, when rainfall can reach 91.0 mm. July is typically the driest time to visit Barcelona-El Prat Airport when rainfall is around 20.0 mm.

Temperature in Barcelona-El Prat by month

Plan your trip to Barcelona-El Prat by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Barcelona-El Prat Airport, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 24.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 9.0 C).

Reviews of airlines servicing Barcelona-El Prat

Get insights into the airlines that provide service to Barcelona-El Prat. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Barcelona-El Prat. Reviews last updated 30 January 2025.
Delta
8.0
Very good
8,454 reviews
Check prices

Comfort

8.0

Overall

8.0

Crew

8.5

Entertainment

7.9

Food

7.3

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Delta
8.0
Very good
8,454 reviews
Delta
8.0
Very good
8,454 reviews
Check prices

Comfort

8.0

Overall

8.0

Crew

8.5

Entertainment

7.9

Food

7.3

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

KLM
7.8
Good
1,335 reviews
Delta
8.0
Very good
8,454 reviews
Check prices

Comfort

8.0

Overall

8.0

Crew

8.5

Entertainment

7.9

Food

7.3

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Finnair
7.6
Good
1,285 reviews
Delta
8.0
Very good
8,454 reviews
Check prices

Comfort

8.0

Overall

8.0

Crew

8.5

Entertainment

7.9

Food

7.3

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

SWISS
7.5
Good
1,584 reviews
Delta
8.0
Very good
8,454 reviews
Check prices

Comfort

8.0

Overall

8.0

Crew

8.5

Entertainment

7.9

Food

7.3

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

United Airlines
7.4
Good
8,913 reviews
Delta
8.0
Very good
8,454 reviews
Check prices

Comfort

8.0

Overall

8.0

Crew

8.5

Entertainment

7.9

Food

7.3

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

Find useful and relevant information for your journey from Seattle to Barcelona-El Prat. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Seattle to Barcelona-El Prat?

    Located just 18.4 km from the city centre, Seattle/Tacoma Intl is the airport most travellers will use when flying to Barcelona-El Prat from Seattle. Booking flights from Seattle/Tacoma Intl (SEA) to Barcelona-El Prat should be relatively easy as there are 0 daily outbound flights to Barcelona-El Prat from 0 different airlines.

  • What are the cheapest airlines flying from Seattle to Barcelona-El Prat Airport round-trip?

    Our cheapest airline available from Seattle to Barcelona-El Prat Airport is United Airlines. Our recent data shows that you can find tickets from as low as C$ 863 on this airline. Additional options worth looking into are KLM and Lufthansa, starting at C$ 909 and C$ 929 round-trip. You may be able to fly from Seattle to Barcelona-El Prat Airport for 34% less than the average price by searching for these airlines.

  • What are the cheapest airlines to fly from Seattle to Barcelona-El Prat Airport one-way?

    The cheapest airlines for a one-way flight from Seattle to Barcelona-El Prat Airport are Delta (C$ 684), KLM (C$ 757), and United Airlines (C$ 772).

  • Can I find deals for flights from Seattle to Barcelona-El Prat that include hotel bookings?

    Yes. In addition to deals on Seattle to Barcelona-El Prat flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Seattle to Barcelona-El Prat?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to Barcelona-El Prat.

  • Can I find deals for business class flights from Seattle to Barcelona-El Prat?

    Yes. Cheapflights offers flight deals from Seattle to Barcelona-El Prat by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Seattle to Barcelona-El Prat Airport?

    Currently, January is the cheapest month in which you can book a flight from Seattle to Barcelona-El Prat Airport (average of C$ 604). Flying from Seattle to Barcelona-El Prat Airport in July is currently the most expensive (average of C$ 802). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Deals for Seattle to Barcelona-El Prat flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

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Can Cheapflights find flights from Seattle to Barcelona-El Prat with no change fees?

Yes, we can. To see specific flights from Seattle to Barcelona-El Prat with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from Seattle to Barcelona-El Prat become cheaper?

Yes, Cheapflights offers price alerts on Seattle to Barcelona-El Prat flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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