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Cheap flights from Washington, D.C. Dulles Intl Airport to Santander from $710

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 2/9. 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
6:20 pm - 9:00 pm
IAD
-
SDR
20h 40m2 stops
Iberia Logo
9:00 am - 4:30 pm
SDR
-
IAD
13h 30m1 stop
$710Iberia
Mon, Feb 9 - Tue, Feb 24
Iberia Logo
6:20 pm - 5:10 pm
IAD
-
SDR
16h 50m2 stops
Iberia Logo
6:30 am - 3:35 pm
SDR
-
IAD
15h 05m2 stops
$866Iberia
Mon, Jan 12 - Wed, Jan 28
Iberia Logo
9:45 pm - 9:00 pm
IAD
-
SDR
17h 15m2 stops
Iberia Logo
9:00 am - 7:55 pm
SDR
-
IAD
16h 55m2 stops
$921Iberia
Mon, Feb 9 - Tue, Feb 24
Iberia Logo
5:52 pm - 5:00 pm
IAD
-
SDR
17h 08m2 stops
Iberia Logo
6:30 am - 7:30 pm
SDR
-
IAD
19h 00m2 stops
$1,049Iberia
Mon, Apr 6 - Tue, May 19
Iberia Logo
5:00 pm - 5:00 pm
IAD
-
SDR
18h 00m1 stop
Iberia Logo
5:40 pm - 8:20 pm
SDR
-
IAD
32h 40m2 stops
$1,131Iberia
Mon, Apr 6 - Tue, May 19
Iberia Logo
8:25 pm - 5:00 pm
IAD
-
SDR
38h 35m2 stops
Iberia Logo
5:40 pm - 7:30 pm
SDR
-
IAD
31h 50m2 stops
$1,212Iberia
Thu, Apr 9 - Tue, May 19
Iberia Logo
9:45 pm - 9:00 pm
IAD
-
SDR
17h 15m2 stops
Iberia Logo
6:30 am - 4:30 pm
SDR
-
IAD
16h 00m1 stop
$1,213Iberia
Fri, Jan 30 - Tue, Feb 3
Iberia Logo
9:45 pm - 9:00 pm
IAD
-
SDR
17h 15m2 stops
Iberia Logo
6:30 am - 3:35 pm
SDR
-
IAD
39h 05m2 stops
$1,232Iberia
Fri, Jan 30 - Tue, Feb 3
Iberia Logo
9:45 pm - 9:00 pm
IAD
-
SDR
17h 15m2 stops
Iberia Logo
5:40 pm - 3:35 pm
SDR
-
IAD
27h 55m2 stops
$1,233Iberia
Fri, Jan 30 - Tue, Feb 3
Iberia Logo
8:25 pm - 5:00 pm
IAD
-
SDR
38h 35m2 stops
Iberia Logo
5:40 pm - 6:55 pm
SDR
-
IAD
31h 15m2 stops
$1,272Iberia
Thu, Apr 9 - Sat, May 16

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
Feb 9
IAD6:20 pmWashington, D.C. Dulles Intl
20h 40m
2 stops
SDR9:00 pmSantander
Feb 24
SDR9:00 amSantander
13h 30m
1 stop
IAD4:30 pmWashington, D.C. Dulles Intl
$710
Find similar
Iberia
Jan 12
IAD6:20 pmWashington, D.C. Dulles Intl
16h 50m
2 stops
SDR5:10 pmSantander
Jan 28
SDR6:30 amSantander
15h 05m
2 stops
IAD3:35 pmWashington, D.C. Dulles Intl
$866
Find similar
Iberia
Feb 9
IAD9:45 pmWashington, D.C. Dulles Intl
17h 15m
2 stops
SDR9:00 pmSantander
Feb 24
SDR9:00 amSantander
16h 55m
2 stops
IAD7:55 pmWashington, D.C. Dulles Intl
$921
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 December 23, 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

Mon 2/9

6:20 pm-9:00 pm

2 stops20h 40m

Santander

Tue 2/24

9:00 am-4:30 pm

1 stop13h 30m

$710

Washington, D.C.Santander

IAD - SDR

IADSDR

Washington, D.C. Dulles Intl

Mon 1/12

6:20 pm-5:10 pm

2 stops16h 50m

Santander

Wed 1/28

6:30 am-3:35 pm

2 stops15h 05m

$866

Washington, D.C.Santander

IAD - SDR

IADSDR

Washington, D.C. Dulles Intl

Mon 2/9

9:45 pm-9:00 pm

2 stops17h 15m

Santander

Tue 2/24

9:00 am-7:55 pm

2 stops16h 55m

$921

Washington, D.C.Santander

IAD - SDR

IADSDR

Washington, D.C. Dulles Intl

Mon 4/6

5:52 pm-5:00 pm

2 stops17h 08m

Santander

Tue 5/19

6:30 am-7:30 pm

2 stops19h 00m

$1,049

Washington, D.C.Santander

IAD - SDR

IADSDR

Washington, D.C. Dulles Intl

Mon 4/6

5:00 pm-5:00 pm

1 stop18h 00m

Santander

Tue 5/19

5:40 pm-8:20 pm

2 stops32h 40m

$1,131

Washington, D.C.Santander

IAD - SDR

IADSDR

Washington, D.C. Dulles Intl

Thu 4/9

8:25 pm-5:00 pm

2 stops38h 35m

Santander

Tue 5/19

5:40 pm-7:30 pm

2 stops31h 50m

$1,212

Washington, D.C.Santander

IAD - SDR

IADSDR

Washington, D.C. Dulles Intl

Fri 1/30

9:45 pm-9:00 pm

2 stops17h 15m

Santander

Tue 2/3

6:30 am-4:30 pm

1 stop16h 00m

$1,213

Washington, D.C.Santander

IAD - SDR

IADSDR

Washington, D.C. Dulles Intl

Fri 1/30

9:45 pm-9:00 pm

2 stops17h 15m

Santander

Tue 2/3

6:30 am-3:35 pm

2 stops39h 05m

$1,232

Washington, D.C.Santander

IAD - SDR

IADSDR

Washington, D.C. Dulles Intl

Fri 1/30

9:45 pm-9:00 pm

2 stops17h 15m

Santander

Tue 2/3

5:40 pm-3:35 pm

2 stops27h 55m

$1,233

Washington, D.C.Santander

IAD - SDR

IADSDR

Washington, D.C. Dulles Intl

Thu 4/9

8:25 pm-5:00 pm

2 stops38h 35m

Santander

Sat 5/16

5:40 pm-6:55 pm

2 stops31h 15m

$1,272

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to Santander from

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

Fastest flight time

10h 30m

Direct flights

None
The fastest flight from Washington, D.C. Dulles Intl Airport to Santander takes 10h 30m
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.
Search flight deals

  • 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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