What airlines fly to Santander?

Lufthansa, Delta and KLM are the top three most popular airlines that fly to Santander from Seattle according to our data. Lufthansa is the first choice among our users, with 39% of people opting to fly with this airline when traveling to Santander. Keep in mind that there are 4 different airlines that fly to Santander on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Santander Airport?

Prices for flights from Seattle/Tacoma Intl Airport to Santander Airport are updated daily.

How old do you have to be to fly from Seattle/Tacoma Intl Airport to Santander 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 Santander Airport.

What documentation or ID do you need to fly to Santander Airport?

The travel and health documents you'll need for your trip to Santander Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Santander Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$544 Cheap Flights from Seattle to Santander in 2025/26

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Find the cheapest flights from Seattle to Santander

Round-trip

One-way

Cheap round-trip flights

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8:04 am - 5:10 pm

SEA

SDR

24h 06m2 stops

5:40 pm - 11:01 am

SDR

SEA

26h 21m2 stops

$544Iberia

Sat, Jan 17 - Sat, Jan 24

6:50 pm - 9:00 pm

SEA

SDR

17h 10m2 stops

6:30 am - 4:55 pm

SDR

SEA

43h 25m2 stops

$742Iberia

Fri, Jan 23 - Tue, Jan 27

2:01 pm - 5:00 pm

SEA

SDR

17h 59m2 stops

10:05 am - 8:14 pm

SDR

SEA

19h 09m2 stops

$860Multiple Airlines

Mon, Apr 13 - Thu, Apr 23

7:51 am - 8:20 am

SEA

SDR

16h 29m2 stops

10:05 am - 8:20 pm

SDR

SEA

19h 15m2 stops

$1,430Iberia

Tue, Mar 24 - Tue, Mar 31

7:51 am - 8:20 am

SEA

SDR

16h 29m2 stops

9:00 am - 5:55 pm

SDR

SEA

16h 55m2 stops

$1,497Iberia

Tue, Mar 17 - Tue, Mar 24

5:50 am - 12:30 pm

SEA

SDR

21h 40m3 stops

6:00 pm - 5:05 pm

SDR

SEA

32h 05m2 stops

$1,674Multiple Airlines

Sat, Jan 17 - Sat, Jan 24

2:01 pm - 5:00 pm

SEA

SDR

17h 59m2 stops

10:05 am - 8:57 pm

SDR

SEA

19h 52m2 stops

$1,805Multiple Airlines

Sat, Apr 18 - Fri, Apr 24

1:40 pm - 5:00 pm

SEA

SDR

18h 20m2 stops

9:20 am - 8:00 pm

SDR

SEA

19h 40m2 stops

$1,905Multiple Airlines

Sat, May 23 - Sun, May 31

Iberia flights from Seattle to Santander

Our best Iberia deals on Seattle to Santander flight tickets

Iberia

Jan 17

SEA8:04 amSeattle/Tacoma Intl

24h 06m

2 stops

SDR5:10 pmSantander

Jan 24

SDR5:40 pmSantander

26h 21m

2 stops

SEA11:01 amSeattle/Tacoma Intl

$544

Find similar

Iberia

Jan 23

SEA6:50 pmSeattle/Tacoma Intl

17h 10m

2 stops

SDR9:00 pmSantander

Jan 27

SDR6:30 amSantander

43h 25m

2 stops

SEA4:55 pmSeattle/Tacoma Intl

$742

Find similar

Iberia

Mar 24

SEA7:51 amSeattle/Tacoma Intl

16h 29m

2 stops

SDR8:20 amSantander

Mar 31

SDR10:05 amSantander

19h 15m

2 stops

SEA8:20 pmSeattle/Tacoma Intl

$1,430

Find similar

Fly from

Fly to

Route

Depart

Return

Price

SeattleSantander

SEA - SDR

SEASDR

Seattle/Tacoma Intl

Sat 1/17

8:04 am-5:10 pm

2 stops24h 06m

Santander

Sat 1/24

5:40 pm-11:01 am

2 stops26h 21m

$544

SeattleSantander

SEA - SDR

SEASDR

Seattle/Tacoma Intl

Fri 1/23

6:50 pm-9:00 pm

2 stops17h 10m

Santander

Tue 1/27

6:30 am-4:55 pm

2 stops43h 25m

$742

SeattleSantander

SEA - SDR

SEASDR

Seattle/Tacoma Intl

Mon 4/13

2:01 pm-5:00 pm

2 stops17h 59m

Santander

Thu 4/23

10:05 am-8:14 pm

2 stops19h 09m

$860

SeattleSantander

SEA - SDR

SEASDR

Seattle/Tacoma Intl

Tue 3/24

7:51 am-8:20 am

2 stops16h 29m

Santander

Tue 3/31

10:05 am-8:20 pm

2 stops19h 15m

$1,430

SeattleSantander

SEA - SDR

SEASDR

Seattle/Tacoma Intl

Tue 3/17

7:51 am-8:20 am

2 stops16h 29m

Santander

Tue 3/24

9:00 am-5:55 pm

2 stops16h 55m

$1,497

SeattleSantander

SEA - SDR

SEASDR

Seattle/Tacoma Intl

Sat 1/17

5:50 am-12:30 pm

3 stops21h 40m

Santander

Sat 1/24

6:00 pm-5:05 pm

2 stops32h 05m

$1,674

SeattleSantander

SEA - SDR

SEASDR

Seattle/Tacoma Intl

Sat 4/18

2:01 pm-5:00 pm

2 stops17h 59m

Santander

Fri 4/24

10:05 am-8:57 pm

2 stops19h 52m

$1,805

SeattleSantander

SEA - SDR

SEASDR

Seattle/Tacoma Intl

Sat 5/23

1:40 pm-5:00 pm

2 stops18h 20m

Santander

Sun 5/31

9:20 am-8:00 pm

2 stops19h 40m

$1,905

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

How to get the cheapest flight ticket from Seattle to Santander

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

Prices

Airlines

What is the cheapest time of day to depart on your flight to Santander?

The cheapest time of day to fly to Santander is at noon when flights can be purchased for as low as $654. In the morning is when there is more demand to fly to Santander, so prices are often more expensive at around $981 per ticket.

When to book flights from Seattle to Santander

Are you open to changing your travel dates? Check out the ideal times to fly from Seattle to Santander according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Seattle to Santander (SEA to SDR) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Seattle to Santander

Fastest flight time	16h 29m
Direct flights	None

The fastest flight from Seattle to Santander takes 16h 29m

There are no direct flights from Seattle to Santander. There are no popular flight routes from Seattle to Santander.

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How far is Seattle/Tacoma Intl to Santander by plane?
There are 5114.6 mi between Seattle/Tacoma Intl and Santander. 16h 29m is a normal flight duration for this route.
When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Santander Airport?
Prices for flights from Seattle/Tacoma Intl Airport to Santander Airport are updated daily.
How old do you have to be to fly from Seattle/Tacoma Intl Airport to Santander 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 Santander Airport.
What documentation or ID do you need to fly to Santander Airport?
The travel and health documents you'll need for your trip to Santander Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Santander Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Llanes

Potes

Why use momondo?

Why should I use momondo to find a flight deal from Seattle to Santander?

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 Santander for you.

Can I find flights from Seattle to Santander with flexible booking policies on momondo?

Flights from Seattle to Santander with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Seattle to Santander?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Santander from Seattle.

I’m not ready to book a flight from Seattle to Santander right now. Can momondo alert me if prices change?

Price alerts on flights to Santander from Seattle are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.