Latest deals
Insights
When to book
FAQs
Price Alerts

Cheap flights from Seattle to Santander from $342

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 9/1. 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

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Seattle to Santander

Cheap round-trip flights

Enter your travel dates to find the best prices.
Iberia Logo
3:17 pm - 5:00 pm
SEA
-
SDR
16h 43m
2 stops
Iberia Logo
5:40 pm - 11:35 am
SDR
-
SEA
26h 55m
2 stops
$717Iberia
Tue, Apr 21 - Tue, Apr 28
Iberia Logo
11:41 am - 9:00 pm
SEA
-
SDR
24h 19m
2 stops
Iberia Logo
6:30 am - 10:38 pm
SDR
-
SEA
25h 08m
2 stops
$807Iberia
Thu, Apr 23 - Thu, Apr 30
Iberia Logo
1:35 pm - 9:30 am
SEA
-
SDR
34h 55m
2 stops
Iberia Logo
9:20 am - 12:36 am
SDR
-
SEA
24h 16m
2 stops
$814Iberia
Sat, Apr 18 - Sat, Apr 25
Multiple Airlines Logo
8:01 am - 9:30 am
SEA
-
SDR
16h 29m
2 stops
Multiple Airlines Logo
10:05 am - 8:15 pm
SDR
-
SEA
19h 10m
2 stops
$1,047Multiple Airlines
Sun, Sep 6 - Wed, Sep 30
Iberia Logo
7:10 pm - 9:30 am
SEA
-
SDR
29h 20m
2 stops
Iberia Logo
9:35 pm - 5:10 pm
SDR
-
SEA
28h 35m
2 stops
$1,087Iberia
Sun, Aug 9 - Sat, Aug 15
Multiple Airlines Logo
7:00 am - 8:45 am
SEA
-
SDR
16h 45m
2 stops
Multiple Airlines Logo
9:20 am - 7:23 pm
SDR
-
SEA
19h 03m
2 stops
$1,119Multiple Airlines
Sat, Sep 5 - Sat, Sep 26
Multiple Airlines Logo
2:03 pm - 5:00 pm
SEA
-
SDR
17h 57m
2 stops
Multiple Airlines Logo
9:20 am - 7:25 pm
SDR
-
SEA
19h 05m
2 stops
$1,591Multiple Airlines
Tue, Jun 30 - Sun, Jul 19
Multiple Airlines Logo
8:01 am - 9:30 am
SEA
-
SDR
16h 29m
2 stops
Multiple Airlines Logo
10:05 am - 8:15 pm
SDR
-
SEA
19h 10m
2 stops
$1,693Multiple Airlines
Sun, Sep 6 - Mon, Sep 28
Multiple Airlines Logo
8:00 am - 9:30 am
SEA
-
SDR
16h 30m
2 stops
Multiple Airlines Logo
10:05 am - 8:09 pm
SDR
-
SEA
19h 04m
2 stops
$1,806Multiple Airlines
Wed, Jul 8 - Wed, Jul 15
Multiple Airlines Logo
1:58 pm - 5:00 pm
SEA
-
SDR
18h 02m
2 stops
Multiple Airlines Logo
10:05 am - 8:23 pm
SDR
-
SEA
19h 18m
2 stops
$1,959Multiple Airlines
Thu, Jul 9 - Wed, Jul 22

Iberia flights from Seattle to Santander

Our best Iberia deals on Seattle to Santander flight tickets
Iberia
Apr 21
SEA3:17 pmSeattle/Tacoma Intl
16h 43m
2 stops
SDR5:00 pmSantander
Apr 28
SDR5:40 pmSantander
26h 55m
2 stops
SEA11:35 amSeattle/Tacoma Intl
$717
Iberia
Apr 23
SEA11:41 amSeattle/Tacoma Intl
24h 19m
2 stops
SDR9:00 pmSantander
Apr 30
SDR6:30 amSantander
25h 08m
2 stops
SEA10:38 pmSeattle/Tacoma Intl
$807
Iberia
Apr 18
SEA1:35 pmSeattle/Tacoma Intl
34h 55m
2 stops
SDR9:30 amSantander
Apr 25
SDR9:20 amSantander
24h 16m
2 stops
SEA12:36 amSeattle/Tacoma Intl
$814

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 March 10, 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

Cheapest round-trip

SeattleSantander

SEA - SDR

SEASDR

Seattle/Tacoma Intl

Tue 4/21

3:17 pm-5:00 pm

2 stops16h 43m

Santander

Tue 4/28

5:40 pm-11:35 am

2 stops26h 55m

$717

SeattleSantander

SEA - SDR

SEASDR

Seattle/Tacoma Intl

Thu 4/23

11:41 am-9:00 pm

2 stops24h 19m

Santander

Thu 4/30

6:30 am-10:38 pm

2 stops25h 08m

$807

SeattleSantander

SEA - SDR

SEASDR

Seattle/Tacoma Intl

Sat 4/18

1:35 pm-9:30 am

2 stops34h 55m

Santander

Sat 4/25

9:20 am-12:36 am

2 stops24h 16m

$814

SeattleSantander

SEA - SDR

SEASDR

Seattle/Tacoma Intl

Sun 9/6

8:01 am-9:30 am

2 stops16h 29m

Santander

Wed 9/30

10:05 am-8:15 pm

2 stops19h 10m

$1,047

SeattleSantander

SEA - SDR

SEASDR

Seattle/Tacoma Intl

Sun 8/9

7:10 pm-9:30 am

2 stops29h 20m

Santander

Sat 8/15

9:35 pm-5:10 pm

2 stops28h 35m

$1,087

SeattleSantander

SEA - SDR

SEASDR

Seattle/Tacoma Intl

Sat 9/5

7:00 am-8:45 am

2 stops16h 45m

Santander

Sat 9/26

9:20 am-7:23 pm

2 stops19h 03m

$1,119

SeattleSantander

SEA - SDR

SEASDR

Seattle/Tacoma Intl

Tue 6/30

2:03 pm-5:00 pm

2 stops17h 57m

Santander

Sun 7/19

9:20 am-7:25 pm

2 stops19h 05m

$1,591

SeattleSantander

SEA - SDR

SEASDR

Seattle/Tacoma Intl

Sun 9/6

8:01 am-9:30 am

2 stops16h 29m

Santander

Mon 9/28

10:05 am-8:15 pm

2 stops19h 10m

$1,693
Quickest round-trip

SeattleSantander

SEA - SDR

SEASDR

Seattle/Tacoma Intl

Wed 7/8

8:00 am-9:30 am

2 stops16h 30m

Santander

Wed 7/15

10:05 am-8:09 pm

2 stops19h 04m

$1,806

SeattleSantander

SEA - SDR

SEASDR

Seattle/Tacoma Intl

Thu 7/9

1:58 pm-5:00 pm

2 stops18h 02m

Santander

Wed 7/22

10:05 am-8:23 pm

2 stops19h 18m

$1,959

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 16 resultsSorted by cheapest first
1
2

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 is the cheapest airline that flies from Seattle/Tacoma Intl to Santander?

Iberia is the most popular carrier operating from Seattle/Tacoma Intl to Santander

What airlines fly to Santander?

Lufthansa, KLM and United Airlines 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 48% 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

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.
Search flight deals

  • 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.

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

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Thu 4/9
Thu 4/16
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Spain

Fly your favorite airline to Santander

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