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Cheap flights from Washington, D.C. Dulles Intl Airport to Santander from $585

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. Dulles Intl Airport to Santander departing on 11/23. 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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Find the cheapest flights from Washington, D.C. Dulles Intl Airport to Santander

Cheap round-trip flights

Enter your travel dates to find the best prices.
Iberia Logo
6:00 pm - 9:00 pmIAD-SDR
21h 00m1 stop
Iberia Logo
9:00 am - 4:30 pmSDR-IAD
13h 30m1 stop
$585Iberia
Find Deal
Sun, Nov 23 - Tue, Dec 9
Iberia Logo
6:00 pm - 5:10 pmIAD-SDR
17h 10m1 stop
Iberia Logo
9:00 am - 7:55 pmSDR-IAD
16h 55m2 stops
$937Iberia
Find Deal
Sun, Nov 23 - Tue, Dec 9
Iberia Logo
9:45 pm - 9:00 pmIAD-SDR
17h 15m2 stops
Iberia Logo
9:00 am - 7:55 pmSDR-IAD
16h 55m2 stops
$1,283Iberia
Find Deal
Sun, Nov 23 - Tue, Dec 9
Multiple Airlines Logo
9:00 pm - 8:10 amIAD-SDR
29h 10m3 stops
Multiple Airlines Logo
5:30 pm - 9:00 pmSDR-IAD
33h 30m2 stops
$1,292Multiple Airlines
Find Deal
Thu, Dec 18 - Thu, Jan 22
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
$1,368Multiple Airlines
Find Deal
Fri, Mar 6 - Wed, Jul 15
Multiple Airlines Logo
9:00 pm - 10:00 amIAD-SDR
31h 00m2 stops
Multiple Airlines Logo
9:00 am - 4:30 pmSDR-IAD
13h 30m1 stop
$1,375Multiple Airlines
Find Deal
Thu, Dec 18 - Thu, Jan 22
Multiple Airlines Logo
5:05 pm - 4:55 pmIAD-SDR
17h 50m2 stops
Multiple Airlines Logo
5:30 pm - 9:00 pmSDR-IAD
33h 30m2 stops
$1,402Multiple Airlines
Find Deal
Thu, Dec 18 - Thu, Jan 22
Multiple Airlines Logo
9:45 pm - 5:10 pmIAD-SDR
13h 25m2 stops
Multiple Airlines Logo
6:30 am - 3:35 pmSDR-IAD
15h 05m2 stops
$1,449Multiple Airlines
Find Deal
Fri, Feb 27 - Wed, Mar 4
Multiple Airlines Logo
9:00 pm - 8:10 amIAD-SDR
29h 10m3 stops
Multiple Airlines Logo
5:30 pm - 9:00 pmSDR-IAD
33h 30m3 stops
$1,457Multiple Airlines
Find Deal
Thu, Dec 18 - Thu, Jan 22
Iberia Logo
6:00 pm - 5:10 pmIAD-SDR
17h 10m1 stop
Iberia Logo
9:00 am - 7:30 pmSDR-IAD
40h 30m2 stops
$1,475Iberia
Find Deal
Thu, Dec 25 - Wed, Dec 31

Iberia flights from Washington, D.C. Dulles Intl Airport to Santander

Our best Iberia deals on Washington, D.C. Dulles Intl Airport to Santander flight tickets
Iberia
Nov 23
IAD6:00 pmWashington, D.C. Dulles Intl
21h 00m
1 stop
SDR9:00 pmSantander
Dec 9
SDR9:00 amSantander
13h 30m
1 stop
IAD4:30 pmWashington, D.C. Dulles Intl
$585
Find similar
Iberia
Nov 23
IAD6:00 pmWashington, D.C. Dulles Intl
17h 10m
1 stop
SDR5:10 pmSantander
Dec 9
SDR9:00 amSantander
16h 55m
2 stops
IAD7:55 pmWashington, D.C. Dulles Intl
$937
Find similar
Iberia
Nov 23
IAD9:45 pmWashington, D.C. Dulles Intl
17h 15m
2 stops
SDR9:00 pmSantander
Dec 9
SDR9:00 amSantander
16h 55m
2 stops
IAD7:55 pmWashington, D.C. Dulles Intl
$1,283
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Washington, D.C. Dulles Intl Airport 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 November 5, 2025.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Santander that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Santander

IAD - SDR

IADSDR

Washington, D.C. Dulles Intl

Sun 11/23

6:00 pm-9:00 pm

1 stop21h 00m

Santander

Tue 12/9

9:00 am-4:30 pm

1 stop13h 30m

$585

Washington, D.C.Santander

IAD - SDR

IADSDR

Washington, D.C. Dulles Intl

Sun 11/23

6:00 pm-5:10 pm

1 stop17h 10m

Santander

Tue 12/9

9:00 am-7:55 pm

2 stops16h 55m

$937

Washington, D.C.Santander

IAD - SDR

IADSDR

Washington, D.C. Dulles Intl

Sun 11/23

9:45 pm-9:00 pm

2 stops17h 15m

Santander

Tue 12/9

9:00 am-7:55 pm

2 stops16h 55m

$1,283

Washington, D.C.Santander

IAD - SDR

IADSDR

Washington, D.C. Dulles Intl

Thu 12/18

9:00 pm-8:10 am

3 stops29h 10m

Santander

Thu 1/22

5:30 pm-9:00 pm

2 stops33h 30m

$1,292

Washington, D.C.Santander

IAD - SDR

IADSDR

Washington, D.C. Dulles Intl

Fri 3/6

9:45 pm-5:10 pm

2 stops13h 25m

Santander

Wed 7/15

10:05 am-3:30 pm

1 stop11h 25m

$1,368

Washington, D.C.Santander

IAD - SDR

IADSDR

Washington, D.C. Dulles Intl

Thu 12/18

9:00 pm-10:00 am

2 stops31h 00m

Santander

Thu 1/22

9:00 am-4:30 pm

1 stop13h 30m

$1,375

Washington, D.C.Santander

IAD - SDR

IADSDR

Washington, D.C. Dulles Intl

Thu 12/18

5:05 pm-4:55 pm

2 stops17h 50m

Santander

Thu 1/22

5:30 pm-9:00 pm

2 stops33h 30m

$1,402

Washington, D.C.Santander

IAD - SDR

IADSDR

Washington, D.C. Dulles Intl

Fri 2/27

9:45 pm-5:10 pm

2 stops13h 25m

Santander

Wed 3/4

6:30 am-3:35 pm

2 stops15h 05m

$1,449

Washington, D.C.Santander

IAD - SDR

IADSDR

Washington, D.C. Dulles Intl

Thu 12/18

9:00 pm-8:10 am

3 stops29h 10m

Santander

Thu 1/22

5:30 pm-9:00 pm

3 stops33h 30m

$1,457

Washington, D.C.Santander

IAD - SDR

IADSDR

Washington, D.C. Dulles Intl

Thu 12/25

6:00 pm-5:10 pm

1 stop17h 10m

Santander

Wed 12/31

9:00 am-7:30 pm

2 stops40h 30m

$1,475

Flights are sorted by cheapest round-trip flights first.

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How to get the cheapest flight ticket from Washington, D.C. Dulles Intl Airport 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. Dulles Intl Airport 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. Dulles Intl Airport to Santander

Are you open to changing your travel dates? Check out the ideal times to fly from Washington, D.C. Dulles Intl Airport 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. Dulles Intl Airport to Santander (IAD to SDR) flight deals and tips

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

Direct flights

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

    A flight from Washington, D.C. Dulles Intl to Santander will travel around 3710.7 mi. A reasonable flight in good conditions will take 10h 30m.

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

    Prices for flights from Washington, D.C. Dulles Intl Airport to Santander Airport are updated daily.

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

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

    The travel and health documents required for your trip to Santander Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Santander Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

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, D.C. 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 Washington, D.C. to Santander for you.

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 all potential Washington, D.C. to Santander flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Washington, D.C. 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, D.C. and alert you when they change.

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