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Santander

$713+ Cheap flights from Seattle (SEA) to Santander (SDR)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/25. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SDR
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheap flight deals from Seattle to Santander

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Santander (SDR). 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 September 11, 2025.

Round-trip from

$713
(Expedia)
From Seattle/Tacoma Intl to Santander
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Find flight deals from Seattle to Santander

Cheapest flights from Seattle to Santander
Explore the most affordable flight options available from Seattle to Santander. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

This Expedia deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/2412:59 amSEA - SDR
2 stops22h 21mIberia
Tue 12/25:40 pmSDR - SEA
2 stops36h 33mIberia
Deal found 9/9$713
This Trip.com deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/256:50 pmSEA - SDR
2 stops28h 30mMultiple Airlines
Tue 12/25:40 pmSDR - SEA
3 stops34h 15mMultiple Airlines
Deal found 9/9$1,321

Cheapflights Fare Finder

 
Customize your flight search to find flights from Seattle to Santander 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 2,558,603 searches. Data last updated September 11, 2025.
Use the filters below to find and compare flights from Seattle to Santander that are best for you.

Fly from

Seattle

Fly to

Santander

Route

Depart

Return

Price

SeattleSantander

SEA - SDR

SEASDR

Seattle/Tacoma Intl

Tue 11/25

5:24 am-8:20 am

2 stops17h 56m

Santander

Tue 12/2

5:40 pm-11:38 pm

2 stops38h 58m

$713

SeattleSantander

SEA - SDR

SEASDR

Seattle/Tacoma Intl

Tue 11/25

6:50 pm-8:20 am

2 stops28h 30m

Santander

Tue 12/2

5:40 pm-6:55 pm

3 stops34h 15m

$1,321

SeattleSantander

SEA - SDR

SEASDR

Seattle/Tacoma Intl

Wed 10/8

1:53 pm-5:05 pm

2 stops18h 12m

$1,000

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/11

Best time to book a flight from Seattle to Santander

Have a flexible travel schedule? Discover the best time to fly to Santander 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.

Related info for your journey

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

  • How long is the flight from Seattle to Santander?

    Iberia can get you from Seattle to Santander in just under 17h 56m. Your travel time can differ by up to . The distance between Seattle and Santander is about 5124 mi.

  • Can I find deals for flights from Seattle to Santander that include hotel bookings?

    Yes. In addition to deals on Seattle to Santander flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Seattle to Santander?

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

  • Can I find deals for business class flights from Seattle to Santander?

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

See more FAQs

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