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Cheap flights from Washington to Santander from $404

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington to Santander departing on 9/8. 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
1 adult, Economy, 0 bags

Find the cheapest flights from Washington to Santander

Cheap round-trip flights

Enter your travel dates to find the best prices.
Iberia Logo
7:45 pm - 9:00 pmSEA  Seattle/Tacoma Intl-SDR Santander
17h 15m2 stops London Heathrow Madrid Barajas
Iberia Logo
10:05 am - 4:50 pmSDR  Santander-SEA Seattle/Tacoma Intl
39h 45m2 stops Madrid Barajas London Heathrow
$838Iberia
Tue, Oct 27 - Thu, Nov 5
Finnair Logo
7:30 am - 5:00 pmSEA  Seattle/Tacoma Intl-SDR Santander
24h 30m2 stops Dallas/Fort Worth Madrid Barajas
Finnair Logo
6:30 am - 7:44 pmSDR  Santander-SEA Seattle/Tacoma Intl
22h 14m2 stops Madrid Barajas Dallas/Fort Worth
$855Finnair
Tue, Oct 6 - Tue, Oct 20
Multiple Airlines Logo
11:25 pm - 10:45 amSEA  Seattle/Tacoma Intl-SDR Santander
26h 20m2 stops Reykjavik Keflavik Intl London Heathrow
Multiple Airlines Logo
10:25 am - 7:00 pmSDR  Santander-SEA Seattle/Tacoma Intl
17h 35m1 stop London Stansted
$916Multiple Airlines
Tue, Sep 8 - Tue, Oct 6
Multiple Airlines Logo
11:25 pm - 10:45 amSEA  Seattle/Tacoma Intl-SDR Santander
26h 20m2 stops Reykjavik Keflavik Intl London Heathrow
Multiple Airlines Logo
10:25 am - 7:00 pmSDR  Santander-SEA Seattle/Tacoma Intl
17h 35m1 stop London Stansted
$916Multiple Airlines
Tue, Sep 8 - Tue, Oct 6
British Airways Logo
1:24 pm - 5:00 pmSEA  Seattle/Tacoma Intl-SDR Santander
18h 36m2 stops Chicago O'Hare Intl Madrid Barajas
British Airways Logo
6:30 am - 12:36 amSDR  Santander-SEA Seattle/Tacoma Intl
27h 06m2 stops Madrid Barajas Chicago O'Hare Intl
$922British Airways
Tue, Sep 8 - Tue, Oct 6
Multiple Airlines Logo
3:40 pm - 9:00 amSEA  Seattle/Tacoma Intl-SDR Santander
32h 20m3 stops Reykjavik Keflavik Intl Rome Fiumicino Barcelona-El Prat
Multiple Airlines Logo
10:25 am - 8:40 pmSDR  Santander-SEA Seattle/Tacoma Intl
19h 15m2 stops London Stansted Reykjavik Keflavik Intl
$928Multiple Airlines
Tue, Sep 8 - Tue, Oct 6
Multiple Airlines Logo
3:40 pm - 9:00 amSEA  Seattle/Tacoma Intl-SDR Santander
32h 20m3 stops Reykjavik Keflavik Intl Rome Fiumicino Barcelona-El Prat
Multiple Airlines Logo
10:25 am - 8:40 pmSDR  Santander-SEA Seattle/Tacoma Intl
19h 15m2 stops London Stansted Reykjavik Keflavik Intl
$930Multiple Airlines
Tue, Sep 8 - Tue, Oct 6
British Airways Logo
12:02 pm - 5:00 pmSEA  Seattle/Tacoma Intl-SDR Santander
43h 58m2 stops Dallas/Fort Worth Madrid Barajas
British Airways Logo
5:40 pm - 12:10 amSDR  Santander-SEA Seattle/Tacoma Intl
39h 30m2 stops Madrid Barajas Dallas/Fort Worth
$950British Airways
Sat, Oct 3 - Sun, Oct 11
British Airways Logo
5:50 am - 5:00 pmSEA  Seattle/Tacoma Intl-SDR Santander
26h 10m2 stops Chicago O'Hare Intl Madrid Barajas
British Airways Logo
6:30 am - 9:57 pmSDR  Santander-SEA Seattle/Tacoma Intl
24h 27m2 stops Madrid Barajas Dallas/Fort Worth
$969British Airways
Tue, Sep 8 - Tue, Oct 6
Multiple Airlines Logo
9:40 pm - 10:45 amSEA  Seattle/Tacoma Intl-SDR Santander
28h 05m1 stop London Heathrow
Multiple Airlines Logo
10:25 am - 7:00 pmSDR  Santander-SEA Seattle/Tacoma Intl
17h 35m1 stop London Stansted
$974Multiple Airlines
Tue, Sep 8 - Tue, Oct 6

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British Airways flights from State of Washington to Santander

Our best British Airways deals on State of Washington to Santander flight tickets
British Airways
Jan 10
SEA6:12 amSeattle/Tacoma Intl
25h 48m
2 stops
SDR5:00 pmSantander
Jan 14
SDR5:40 pmSantander
37h 27m
2 stops
SEA10:07 pmSeattle/Tacoma Intl
$1,026
British Airways
Dec 5
SEA2:07 pmSeattle/Tacoma Intl
41h 53m
2 stops
SDR5:00 pmSantander
Dec 8
SDR5:40 pmSantander
38h 06m
2 stops
SEA10:46 pmSeattle/Tacoma Intl
$1,034

momondo Fare Finder

 
Customize your flight search to find flights from State of Washington 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 August 12, 2026.
Use the filters below to find and compare flights from Washington to Santander that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattleSantander

SEA Seattle/Tacoma Intl - SDR Santander

SEASDR

Seattle/Tacoma Intl

Tue 10/27

7:45 pm-9:00 pm

2 stops17h 15m

Santander

Thu 11/5

10:05 am-4:50 pm

2 stops39h 45m

$838

SeattleSantander

SEA Seattle/Tacoma Intl - SDR Santander

SEASDR

Seattle/Tacoma Intl

Tue 10/6

7:30 am-5:00 pm

2 stops24h 30m

Santander

Tue 10/20

6:30 am-7:44 pm

2 stops22h 14m

$855
Quickest round-trip

SeattleSantander

SEA Seattle/Tacoma Intl - SDR Santander

SEASDR

Seattle/Tacoma Intl

Tue 9/8

11:25 pm-10:45 am

2 stops26h 20m

Santander

Tue 10/6

10:25 am-7:00 pm

1 stop17h 35m

$916

SeattleSantander

SEA Seattle/Tacoma Intl - SDR Santander

SEASDR

Seattle/Tacoma Intl

Tue 9/8

11:25 pm-10:45 am

2 stops26h 20m

Santander

Tue 10/6

10:25 am-7:00 pm

1 stop17h 35m

$916

SeattleSantander

SEA Seattle/Tacoma Intl - SDR Santander

SEASDR

Seattle/Tacoma Intl

Tue 9/8

1:24 pm-5:00 pm

2 stops18h 36m

Santander

Tue 10/6

6:30 am-12:36 am

2 stops27h 06m

$922

SeattleSantander

SEA Seattle/Tacoma Intl - SDR Santander

SEASDR

Seattle/Tacoma Intl

Tue 9/8

3:40 pm-9:00 am

3 stops32h 20m

Santander

Tue 10/6

10:25 am-8:40 pm

2 stops19h 15m

$928

SeattleSantander

SEA Seattle/Tacoma Intl - SDR Santander

SEASDR

Seattle/Tacoma Intl

Tue 9/8

3:40 pm-9:00 am

3 stops32h 20m

Santander

Tue 10/6

10:25 am-8:40 pm

2 stops19h 15m

$930

SeattleSantander

SEA Seattle/Tacoma Intl - SDR Santander

SEASDR

Seattle/Tacoma Intl

Sat 10/3

12:02 pm-5:00 pm

2 stops43h 58m

Santander

Sun 10/11

5:40 pm-12:10 am

2 stops39h 30m

$950

SeattleSantander

SEA Seattle/Tacoma Intl - SDR Santander

SEASDR

Seattle/Tacoma Intl

Tue 9/8

5:50 am-5:00 pm

2 stops26h 10m

Santander

Tue 10/6

6:30 am-9:57 pm

2 stops24h 27m

$969

SeattleSantander

SEA Seattle/Tacoma Intl - SDR Santander

SEASDR

Seattle/Tacoma Intl

Tue 9/8

9:40 pm-10:45 am

1 stop28h 05m

Santander

Tue 10/6

10:25 am-7:00 pm

1 stop17h 35m

$974

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 14 resultsSorted by cheapest first
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See travel insights to Santander from

How to get the cheapest flight ticket from State of Washington 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 Washington to Santander?

Iberia is the most popular carrier operating from Washington to Santander

What airlines fly to Santander?

Lufthansa, Delta and United Airlines are the top three most popular airlines that fly to Santander from State of Washington according to our data. Lufthansa is the first choice among our users, with 57% 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.

Cheap State of Washington to Santander flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from State of Washington to Santander

Fastest flight time

16h 30m

Direct flights

None
The fastest flight from State of Washington to Santander takes 16h 30m
There are no direct flights from State of Washington to Santander. There are no popular flight routes from State of Washington to Santander.
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Frequently asked questions about flying from Washington to Santander

  • When did momondo last update prices for flights from Washington to Santander Airport?

    Prices for flights from Washington to Santander Airport are updated daily.

  • How old do you have to be to fly from Washington 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 Washington to Santander Airport.

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

    The required travel and health documents for your Santander Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Santander Airport. We recommend that you seek guidance from your airline or a reliable 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 Washington to Santander?

Finding the right flight to Santander from Washington is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Santander quick and easy, saving you time and money.

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

All flight searches from Washington to Santander on momondo can be filtered to show those which offer flexible booking policies.

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

momondo helps you find the best flight between Washington and Santander by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

If you are simply researching potential flights to Santander, momondo offers a useful price alert feature which will track prices for flights to Santander from Washington and alert you when they change.

An easier way to manage your Santander trip

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Fri 9/11
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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
United Airlines
KLM