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 38% 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.

$653 Cheap Flights from Seattle to Santander in 2025/26

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Find the cheapest flights from Seattle to Santander

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One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

6:50 pm - 8:50 amSEA-SDR

53h 00m2 stops

9:00 am - 11:38 pmSDR-SEA

23h 38m2 stops

$796Multiple Airlines

Find Deal

mié., nov. 26 - mié., dic. 3

7:00 am - 8:20 amSEA-SDR

41h 20m2 stops

5:40 pm - 11:08 pmSDR-SEA

37h 28m2 stops

$940Iberia

Find Deal

mié., mar. 11 - dom., mar. 15

7:50 pm - 8:20 amSEA-SDR

28h 30m2 stops

9:25 am - 11:08 pmSDR-SEA

21h 43m2 stops

$1,144Iberia

Find Deal

mié., mar. 11 - dom., mar. 15

2:35 pm - 4:55 pmSEA-SDR

17h 20m2 stops

5:30 pm - 5:05 pmSDR-SEA

32h 35m3 stops

$1,302Multiple Airlines

Find Deal

mié., nov. 26 - mié., dic. 3

7:50 pm - 8:50 amSEA-SDR

53h 00m2 stops

9:25 am - 12:30 pmSDR-SEA

59h 05m2 stops

$1,307Iberia

Find Deal

mié., mar. 11 - dom., mar. 15

8:10 am - 6:25 pmSEA-SDR

25h 15m3 stops

5:30 pm - 5:05 pmSDR-SEA

32h 35m3 stops

$1,321Multiple Airlines

Find Deal

mié., nov. 26 - mié., dic. 3

Iberia flights from Seattle to Santander

Our best Iberia deals on Seattle to Santander flight tickets

Iberia

Mar 11

SEA7:00 amSeattle/Tacoma Intl

41h 20m

2 stops

SDR8:20 amSantander

Mar 15

SDR5:40 pmSantander

37h 28m

2 stops

SEA11:08 pmSeattle/Tacoma Intl

$940

Find similar

Iberia

Mar 11

SEA7:50 pmSeattle/Tacoma Intl

28h 30m

2 stops

SDR8:20 amSantander

Mar 15

SDR9:25 amSantander

21h 43m

2 stops

SEA11:08 pmSeattle/Tacoma Intl

$1,144

Find similar

Iberia

Mar 11

SEA7:50 pmSeattle/Tacoma Intl

53h 00m

2 stops

SDR8:50 amSantander

Mar 15

SDR9:25 amSantander

59h 05m

2 stops

SEA12:30 pmSeattle/Tacoma Intl

$1,307

Find similar

Fly from

Fly to

Route

Depart

Return

Price

SeattleSantander

SEA - SDR

SEASDR

Seattle/Tacoma Intl

mié. 11/26

6:50 pm-8:50 am

2 stops53h 00m

Santander

mié. 12/3

9:00 am-11:38 pm

2 stops23h 38m

$796

SeattleSantander

SEA - SDR

SEASDR

Seattle/Tacoma Intl

mié. 3/11

7:00 am-8:20 am

2 stops41h 20m

Santander

dom. 3/15

5:40 pm-11:08 pm

2 stops37h 28m

$940

SeattleSantander

SEA - SDR

SEASDR

Seattle/Tacoma Intl

mié. 3/11

7:50 pm-8:20 am

2 stops28h 30m

Santander

dom. 3/15

9:25 am-11:08 pm

2 stops21h 43m

$1,144

SeattleSantander

SEA - SDR

SEASDR

Seattle/Tacoma Intl

mié. 11/26

2:35 pm-4:55 pm

2 stops17h 20m

Santander

mié. 12/3

5:30 pm-5:05 pm

3 stops32h 35m

$1,302

SeattleSantander

SEA - SDR

SEASDR

Seattle/Tacoma Intl

mié. 3/11

7:50 pm-8:50 am

2 stops53h 00m

Santander

dom. 3/15

9:25 am-12:30 pm

2 stops59h 05m

$1,307

SeattleSantander

SEA - SDR

SEASDR

Seattle/Tacoma Intl

mié. 11/26

8:10 am-6:25 pm

3 stops25h 15m

Santander

mié. 12/3

5:30 pm-5:05 pm

3 stops32h 35m

$1,321

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

Direct flights	None

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

Search flight deals

How far is Seattle/Tacoma Intl to Santander by plane?
There are 5114.6 mi between Seattle/Tacoma Intl and Santander. 17h 20m 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

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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.