Cheap flights from Washington, D.C. to Santander from $579

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Washington, D.C. to Santander departing on 1/6. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Cheap round-trip flights

Enter your travel dates to find the best prices.
Iberia Logo
6:20 pm - 8:20 amIAD-SDR
32h 00m2 stops
Iberia Logo
6:30 am - 10:45 amSDR-IAD
34h 15m2 stops
$579Iberia
Find Deal
Tue, Jan 6 - Thu, May 28
Iberia Logo
6:00 pm - 8:20 amIAD-SDR
32h 20m1 stop
Iberia Logo
5:40 pm - 3:30 pmSDR-IAD
27h 50m1 stop
$653Iberia
Find Deal
Tue, Jan 6 - Thu, May 28
Iberia Logo
6:00 pm - 8:20 amIAD-SDR
32h 20m1 stop
Iberia Logo
10:05 am - 10:45 amSDR-IAD
30h 40m2 stops
$658Iberia
Find Deal
Tue, Jan 6 - Thu, May 28
Iberia Logo
6:00 pm - 5:10 pmIAD-SDR
17h 10m1 stop
Iberia Logo
10:05 am - 3:30 pmSDR-IAD
11h 25m1 stop
$677Iberia
Find Deal
Tue, Jan 6 - Wed, May 27
Iberia Logo
5:00 pm - 9:30 amIAD-SDR
10h 30m1 stop
Iberia Logo
10:05 am - 3:30 pmSDR-IAD
11h 25m1 stop
$776Iberia
Find Deal
Mon, Apr 27 - Tue, May 5
Iberia Logo
9:45 pm - 8:20 amIAD-SDR
28h 35m2 stops
Iberia Logo
6:30 am - 3:30 pmSDR-IAD
15h 00m1 stop
$783Iberia
Find Deal
Mon, Jan 5 - Wed, May 27
Iberia Logo
6:20 pm - 8:20 amIAD-SDR
32h 00m2 stops
Iberia Logo
6:30 am - 6:55 pmSDR-IAD
18h 25m2 stops
$797Iberia
Find Deal
Mon, Jan 5 - Fri, May 29
Iberia Logo
9:45 pm - 8:20 amIAD-SDR
28h 35m2 stops
Iberia Logo
10:05 am - 7:30 pmSDR-IAD
39h 25m2 stops
$805Iberia
Find Deal
Mon, Jan 5 - Tue, May 26
Multiple Airlines Logo
9:45 pm - 5:10 pmIAD-SDR
13h 25m2 stops
Multiple Airlines Logo
10:05 am - 3:30 pmSDR-IAD
11h 25m1 stop
$869Multiple Airlines
Find Deal
Tue, Jan 6 - Wed, May 27
Multiple Airlines Logo
6:00 pm - 8:20 amIAD-SDR
32h 20m1 stop
Multiple Airlines Logo
10:05 am - 3:30 pmSDR-IAD
11h 25m1 stop
$873Multiple Airlines
Find Deal
Tue, Jan 6 - Wed, May 27

Iberia flights from Washington, D.C. to Santander

Our best Iberia deals on Washington, D.C. to Santander flight tickets
Iberia
Jan 6
IAD6:20 pmWashington, D.C. Dulles Intl
32h 00m
2 stops
SDR8:20 amSantander
May 28
SDR6:30 amSantander
34h 15m
2 stops
IAD10:45 amWashington, D.C. Dulles Intl
Iberia
Jan 6
IAD6:00 pmWashington, D.C. Dulles Intl
32h 20m
1 stop
SDR8:20 amSantander
May 28
SDR5:40 pmSantander
27h 50m
1 stop
IAD3:30 pmWashington, D.C. Dulles Intl
Iberia
Jan 6
IAD6:00 pmWashington, D.C. Dulles Intl
32h 20m
1 stop
SDR8:20 amSantander
May 28
SDR10:05 amSantander
30h 40m
2 stops
IAD10:45 amWashington, D.C. Dulles Intl

momondo Fare Finder

 
Customize your flight search to find flights from Washington, D.C. 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 October 30, 2025.
Use the filters below to find and compare flights from Washington, D.C. to Santander that are best for you.

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Fly to

Route

Depart

Return

Price

Washington, D.C.Santander

IAD - SDR

IADSDR

Washington, D.C. Dulles Intl

Tue 1/6

6:20 pm-8:20 am

2 stops32h 00m

Santander

Thu 5/28

6:30 am-10:45 am

2 stops34h 15m

$579

Washington, D.C.Santander

IAD - SDR

IADSDR

Washington, D.C. Dulles Intl

Tue 1/6

6:00 pm-8:20 am

1 stop32h 20m

Santander

Thu 5/28

5:40 pm-3:30 pm

1 stop27h 50m

$653

Washington, D.C.Santander

IAD - SDR

IADSDR

Washington, D.C. Dulles Intl

Tue 1/6

6:00 pm-8:20 am

1 stop32h 20m

Santander

Thu 5/28

10:05 am-10:45 am

2 stops30h 40m

$658

Washington, D.C.Santander

IAD - SDR

IADSDR

Washington, D.C. Dulles Intl

Tue 1/6

6:00 pm-5:10 pm

1 stop17h 10m

Santander

Wed 5/27

10:05 am-3:30 pm

1 stop11h 25m

$677

Washington, D.C.Santander

IAD - SDR

IADSDR

Washington, D.C. Dulles Intl

Mon 4/27

5:00 pm-9:30 am

1 stop10h 30m

Santander

Tue 5/5

10:05 am-3:30 pm

1 stop11h 25m

$776

Washington, D.C.Santander

IAD - SDR

IADSDR

Washington, D.C. Dulles Intl

Mon 1/5

9:45 pm-8:20 am

2 stops28h 35m

Santander

Wed 5/27

6:30 am-3:30 pm

1 stop15h 00m

$783

Washington, D.C.Santander

IAD - SDR

IADSDR

Washington, D.C. Dulles Intl

Mon 1/5

6:20 pm-8:20 am

2 stops32h 00m

Santander

Fri 5/29

6:30 am-6:55 pm

2 stops18h 25m

$797

Washington, D.C.Santander

IAD - SDR

IADSDR

Washington, D.C. Dulles Intl

Mon 1/5

9:45 pm-8:20 am

2 stops28h 35m

Santander

Tue 5/26

10:05 am-7:30 pm

2 stops39h 25m

$805

Washington, D.C.Santander

IAD - SDR

IADSDR

Washington, D.C. Dulles Intl

Tue 1/6

9:45 pm-5:10 pm

2 stops13h 25m

Santander

Wed 5/27

10:05 am-3:30 pm

1 stop11h 25m

$869

Washington, D.C.Santander

IAD - SDR

IADSDR

Washington, D.C. Dulles Intl

Tue 1/6

6:00 pm-8:20 am

1 stop32h 20m

Santander

Wed 5/27

10:05 am-3:30 pm

1 stop11h 25m

$873

Flights are sorted by cheapest round-trip flights first.

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How to get the cheapest flight ticket from Washington, D.C. 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 day to depart on your flight to Santander?

The cheapest day to depart from Washington, D.C. to Santander is on a Monday. Travelers who choose to depart for Santander on a Monday will often find tickets for as low as $985. If your travel schedule is flexible, try to avoid departing on a Thursday because tickets tend to average around $1,253. These prices are subject to change though, so be sure to set up a Price Alert for flights to Santander.

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

The cheapest time of day to fly to Santander is in the afternoon when flights can be purchased for as low as $702. In the evening is when there is more demand to fly to Santander, so prices are often more expensive at around $1,253 per ticket.

When to book flights from Washington, D.C. to Santander

Are you open to changing your travel dates? Check out the ideal times to fly from Washington, D.C. to Santander according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Washington, D.C. to Santander (WAS to SDR) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Washington, D.C. to Santander

Direct flights

None
There are no direct flights from Washington, D.C. to Santander. There are no popular flight routes from Washington, D.C. to Santander.
  • How far is Washington, D.C. to Santander by plane?

    The straight-line distance from Washington, D.C. to Santander is 3692.9 mi. 10h 30m is a normal flight duration for this route.

  • When did momondo last update prices for flights from Washington, D.C. to Santander Airport?

    Prices for flights from Washington, D.C. to Santander Airport were last updated today.

  • How old do you have to be to fly from Washington, D.C. to Santander Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Washington, D.C. to Santander Airport.

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

    The necessary travel and health documents for your Santander Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from Washington, D.C. to Santander?

Traveling to a place near Santander?

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

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Why should I use momondo to find a flight deal from Washington, D.C. to Santander?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Washington, D.C. to Santander. momondo saves you time and could save you money on your trip.

Can I find flights from Washington, D.C. to Santander with flexible booking policies on momondo?

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

How can momondo help me find flights from Washington, D.C. to Santander?

Once you have performed a search for Washington, D.C. to Santander flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

Yes. momondo can track prices for Washington, D.C. to Santander flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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Sat 11/29
Sat 12/6

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