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Cheap flights from Washington, D.C. Dulles Intl Airport to Santander from $315

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, D.C. Dulles Intl Airport to Santander departing on 8/18. 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, D.C. Dulles Intl Airport to Santander

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
11:20 pm - 7:20 pm
IAD
-
SDR
38h 00m
2 stops
Multiple Airlines Logo
6:30 am - 3:30 pm
SDR
-
IAD
15h 00m
1 stop
$831Multiple Airlines
Fri, Sep 25 - Wed, Oct 14
Iberia Logo
5:00 pm - 9:30 am
IAD
-
SDR
10h 30m
1 stop
Iberia Logo
10:05 am - 6:50 pm
SDR
-
IAD
14h 45m
1 stop
$846Iberia
Mon, Aug 17 - Tue, Sep 1
Iberia Logo
5:45 pm - 5:00 pm
IAD
-
SDR
17h 15m
2 stops
Iberia Logo
6:30 am - 6:50 pm
SDR
-
IAD
18h 20m
1 stop
$849Iberia
Mon, Aug 17 - Tue, Sep 1
Iberia Logo
5:00 pm - 9:30 am
IAD
-
SDR
10h 30m
1 stop
Iberia Logo
10:05 am - 6:50 pm
SDR
-
IAD
14h 45m
1 stop
$869Iberia
Sun, Aug 16 - Tue, Sep 1
Iberia Logo
5:00 pm - 9:30 am
IAD
-
SDR
10h 30m
1 stop
Iberia Logo
10:05 am - 6:50 pm
SDR
-
IAD
14h 45m
1 stop
$870Iberia
Sun, Aug 16 - Tue, Sep 1
Iberia Logo
10:25 pm - 9:50 pm
IAD
-
SDR
17h 25m
2 stops
Iberia Logo
6:30 am - 3:30 pm
SDR
-
IAD
15h 00m
1 stop
$872Iberia
Wed, Aug 19 - Wed, Aug 26
Multiple Airlines Logo
5:45 pm - 6:15 pm
IAD
-
SDR
18h 30m
2 stops
Multiple Airlines Logo
2:40 pm - 3:10 pm
SDR
-
IAD
30h 30m
2 stops
$873Multiple Airlines
Wed, Aug 19 - Wed, Aug 26
Iberia Logo
10:25 pm - 9:50 pm
IAD
-
SDR
17h 25m
2 stops
Iberia Logo
10:05 am - 6:50 pm
SDR
-
IAD
14h 45m
1 stop
$874Iberia
Sun, Aug 16 - Tue, Sep 1
Iberia Logo
5:45 pm - 5:00 pm
IAD
-
SDR
17h 15m
2 stops
Iberia Logo
10:05 am - 6:50 pm
SDR
-
IAD
14h 45m
1 stop
$878Iberia
Mon, Aug 17 - Tue, Sep 1
British Airways Logo
5:00 pm - 5:00 pm
IAD
-
SDR
18h 00m
1 stop
British Airways Logo
10:05 am - 3:30 pm
SDR
-
IAD
11h 25m
1 stop
$887British Airways
Fri, Sep 25 - Wed, Oct 14

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

Our best British Airways deals on Washington, D.C. Dulles Intl Airport to Santander flight tickets
British Airways
Sep 25
IAD5:00 pmWashington, D.C. Dulles Intl
18h 00m
1 stop
SDR5:00 pmSantander
Oct 14
SDR10:05 amSantander
11h 25m
1 stop
IAD3:30 pmWashington, D.C. Dulles Intl
$887
British Airways
Jul 19
IAD5:00 pmWashington, D.C. Dulles Intl
18h 00m
1 stop
SDR5:00 pmSantander
Jul 28
SDR10:05 amSantander
15h 29m
2 stops
IAD7:34 pmWashington, D.C. Dulles Intl
$1,141
British Airways
Jul 20
IAD5:00 pmWashington, D.C. Dulles Intl
18h 00m
1 stop
SDR5:00 pmSantander
Jul 28
SDR10:05 amSantander
14h 50m
1 stop
IAD6:55 pmWashington, D.C. Dulles Intl
$1,157

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
Aug 17
IAD5:00 pmWashington, D.C. Dulles Intl
10h 30m
1 stop
SDR9:30 amSantander
Sep 1
SDR10:05 amSantander
14h 45m
1 stop
IAD6:50 pmWashington, D.C. Dulles Intl
$846
Iberia
Aug 17
IAD5:45 pmWashington, D.C. Dulles Intl
17h 15m
2 stops
SDR5:00 pmSantander
Sep 1
SDR6:30 amSantander
18h 20m
1 stop
IAD6:50 pmWashington, D.C. Dulles Intl
$849
Iberia
Aug 16
IAD5:00 pmWashington, D.C. Dulles Intl
10h 30m
1 stop
SDR9:30 amSantander
Sep 1
SDR10:05 amSantander
14h 45m
1 stop
IAD6:50 pmWashington, D.C. Dulles Intl
$869

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 July 6, 2026.
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

Cheapest round-trip

Washington, D.C.Santander

IAD - SDR

IADSDR

Washington, D.C. Dulles Intl

Fri 9/25

11:20 pm-7:20 pm

2 stops38h 00m

Santander

Wed 10/14

6:30 am-3:30 pm

1 stop15h 00m

$831
Quickest round-trip

Washington, D.C.Santander

IAD - SDR

IADSDR

Washington, D.C. Dulles Intl

Mon 8/17

5:00 pm-9:30 am

1 stop10h 30m

Santander

Tue 9/1

10:05 am-6:50 pm

1 stop14h 45m

$846

Washington, D.C.Santander

IAD - SDR

IADSDR

Washington, D.C. Dulles Intl

Mon 8/17

5:45 pm-5:00 pm

2 stops17h 15m

Santander

Tue 9/1

6:30 am-6:50 pm

1 stop18h 20m

$849

Washington, D.C.Santander

IAD - SDR

IADSDR

Washington, D.C. Dulles Intl

Sun 8/16

5:00 pm-9:30 am

1 stop10h 30m

Santander

Tue 9/1

10:05 am-6:50 pm

1 stop14h 45m

$869

Washington, D.C.Santander

IAD - SDR

IADSDR

Washington, D.C. Dulles Intl

Sun 8/16

5:00 pm-9:30 am

1 stop10h 30m

Santander

Tue 9/1

10:05 am-6:50 pm

1 stop14h 45m

$870

Washington, D.C.Santander

IAD - SDR

IADSDR

Washington, D.C. Dulles Intl

Wed 8/19

10:25 pm-9:50 pm

2 stops17h 25m

Santander

Wed 8/26

6:30 am-3:30 pm

1 stop15h 00m

$872

Washington, D.C.Santander

IAD - SDR

IADSDR

Washington, D.C. Dulles Intl

Wed 8/19

5:45 pm-6:15 pm

2 stops18h 30m

Santander

Wed 8/26

2:40 pm-3:10 pm

2 stops30h 30m

$873

Washington, D.C.Santander

IAD - SDR

IADSDR

Washington, D.C. Dulles Intl

Sun 8/16

10:25 pm-9:50 pm

2 stops17h 25m

Santander

Tue 9/1

10:05 am-6:50 pm

1 stop14h 45m

$874

Washington, D.C.Santander

IAD - SDR

IADSDR

Washington, D.C. Dulles Intl

Mon 8/17

5:45 pm-5:00 pm

2 stops17h 15m

Santander

Tue 9/1

10:05 am-6:50 pm

1 stop14h 45m

$878

Washington, D.C.Santander

IAD - SDR

IADSDR

Washington, D.C. Dulles Intl

Fri 9/25

5:00 pm-5:00 pm

1 stop18h 00m

Santander

Wed 10/14

10:05 am-3:30 pm

1 stop11h 25m

$887

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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 airlines fly to Santander?

Lufthansa, United Airlines and TAP AIR PORTUGAL are the top three most popular airlines that fly to Santander from Washington, D.C. Dulles Intl Airport according to our data. Lufthansa is the first choice among our users, with 31% 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 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

Frequently asked questions about flying from Washington, D.C. Dulles Intl Airport to Santander

  • 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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Fly your favorite airline to Santander

Airlines are sorted and displayed according to clicks in the past 7 days on momondo
Lufthansa
United Airlines
TAP AIR PORTUGAL
Iberia