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Cheap flights from Seattle to Santander from $278

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to Santander departing on 5/16. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Seattle to Santander

Cheap round-trip flights

Enter your travel dates to find the best prices.
Iberia Logo
5:37 am - 8:50 am
SEA
-
SDR
18h 13m
2 stops
Iberia Logo
9:25 am - 11:07 pm
SDR
-
SEA
22h 42m
2 stops
$633Iberia
sáb., feb. 28 - sáb., mar. 7
Multiple Airlines Logo
6:00 am - 8:20 am
SEA
-
SDR
17h 20m
2 stops
Multiple Airlines Logo
9:00 am - 4:55 pm
SDR
-
SEA
16h 55m
2 stops
$688Multiple Airlines
mar., feb. 10 - mié., feb. 25
Iberia Logo
8:35 am - 5:10 pm
SEA
-
SDR
23h 35m
2 stops
Iberia Logo
9:25 am - 10:20 pm
SDR
-
SEA
21h 55m
2 stops
$773Iberia
mié., feb. 4 - dom., feb. 8
Iberia Logo
8:35 am - 5:10 pm
SEA
-
SDR
47h 35m
2 stops
Iberia Logo
9:25 am - 10:20 pm
SDR
-
SEA
21h 55m
2 stops
$831Iberia
mié., feb. 4 - dom., feb. 8
Multiple Airlines Logo
2:05 pm - 5:00 pm
SEA
-
SDR
17h 55m
2 stops
Multiple Airlines Logo
10:05 am - 9:26 pm
SDR
-
SEA
20h 21m
2 stops
$880Multiple Airlines
mié., abr. 15 - mié., abr. 29
Iberia Logo
10:50 am - 5:10 pm
SEA
-
SDR
21h 20m
2 stops
Iberia Logo
9:25 am - 10:20 pm
SDR
-
SEA
21h 55m
2 stops
$960Iberia
mié., feb. 4 - dom., feb. 8
Multiple Airlines Logo
2:35 pm - 8:10 am
SEA
-
SDR
32h 35m
3 stops
Multiple Airlines Logo
6:00 pm - 5:05 pm
SDR
-
SEA
32h 05m
2 stops
$1,399Multiple Airlines
sáb., feb. 28 - sáb., mar. 7
Multiple Airlines Logo
2:35 pm - 8:10 am
SEA
-
SDR
32h 35m
3 stops
Multiple Airlines Logo
6:00 pm - 1:20 pm
SDR
-
SEA
28h 20m
3 stops
$1,610Multiple Airlines
sáb., feb. 28 - sáb., mar. 7

Iberia flights from Seattle to Santander

Our best Iberia deals on Seattle to Santander flight tickets
Iberia
Feb 28
SEA5:37 amSeattle/Tacoma Intl
18h 13m
2 stops
SDR8:50 amSantander
Mar 7
SDR9:25 amSantander
22h 42m
2 stops
SEA11:07 pmSeattle/Tacoma Intl
$633
Iberia
Feb 4
SEA8:35 amSeattle/Tacoma Intl
23h 35m
2 stops
SDR5:10 pmSantander
Feb 8
SDR9:25 amSantander
21h 55m
2 stops
SEA10:20 pmSeattle/Tacoma Intl
$773
Iberia
Feb 4
SEA8:35 amSeattle/Tacoma Intl
47h 35m
2 stops
SDR5:10 pmSantander
Feb 8
SDR9:25 amSantander
21h 55m
2 stops
SEA10:20 pmSeattle/Tacoma Intl
$831

momondo 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, momondo users made 832,500 searches. Data last updated enero 15, 2026.
Use the filters below to find and compare flights from Seattle to Santander that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SeattleSantander

SEA - SDR

SEASDR

Seattle/Tacoma Intl

sáb. 2/28

5:37 am-8:50 am

2 stops18h 13m

Santander

sáb. 3/7

9:25 am-11:07 pm

2 stops22h 42m

$633

SeattleSantander

SEA - SDR

SEASDR

Seattle/Tacoma Intl

mar. 2/10

6:00 am-8:20 am

2 stops17h 20m

Santander

mié. 2/25

9:00 am-4:55 pm

2 stops16h 55m

$688

SeattleSantander

SEA - SDR

SEASDR

Seattle/Tacoma Intl

mié. 2/4

8:35 am-5:10 pm

2 stops23h 35m

Santander

dom. 2/8

9:25 am-10:20 pm

2 stops21h 55m

$773

SeattleSantander

SEA - SDR

SEASDR

Seattle/Tacoma Intl

mié. 2/4

8:35 am-5:10 pm

2 stops47h 35m

Santander

dom. 2/8

9:25 am-10:20 pm

2 stops21h 55m

$831

SeattleSantander

SEA - SDR

SEASDR

Seattle/Tacoma Intl

mié. 4/15

2:05 pm-5:00 pm

2 stops17h 55m

Santander

mié. 4/29

10:05 am-9:26 pm

2 stops20h 21m

$880

SeattleSantander

SEA - SDR

SEASDR

Seattle/Tacoma Intl

mié. 2/4

10:50 am-5:10 pm

2 stops21h 20m

Santander

dom. 2/8

9:25 am-10:20 pm

2 stops21h 55m

$960

SeattleSantander

SEA - SDR

SEASDR

Seattle/Tacoma Intl

sáb. 2/28

2:35 pm-8:10 am

3 stops32h 35m

Santander

sáb. 3/7

6:00 pm-5:05 pm

2 stops32h 05m

$1,399

SeattleSantander

SEA - SDR

SEASDR

Seattle/Tacoma Intl

sáb. 2/28

2:35 pm-8:10 am

3 stops32h 35m

Santander

sáb. 3/7

6:00 pm-1:20 pm

3 stops28h 20m

$1,610

SeattleSantander

SEA - SDR

SEASDR

Seattle/Tacoma Intl

sáb. 5/16

3:40 pm-10:45 am

2 stops34h 05m

$278

SeattleSantander

SEA - SDR

SEASDR

Seattle/Tacoma Intl

lun. 5/18

1:35 pm-5:00 pm

2 stops18h 25m

$288

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 18 resultsSorted by cheapest first
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See travel insights to Santander from

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

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 42% 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 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

17h 06m

Direct flights

None
The fastest flight from Seattle to Santander takes 17h 06m
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 06m 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.

Traveling to a place near Santander?

Book flights to Santander if you plan to visit one of these locations
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.

An easier way to manage your Santander trip

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Fly your favorite airline to Santander

Airlines are sorted and displayed according to clicks in the past 7 days on momondo
Lufthansa
Delta
KLM
United Airlines