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Dulles Intl

$366+ Cheap flights from Spain to Dulles Intl (IAD)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/29. Fares are subject to change and may not be available on all flights or dates of travel.
MAD — IAD
Aug 17 — Aug 241
Mon 8/17
Mon 8/24
1 adult, Economy
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Cheap flight deals from Spain to Dulles Intl

Cheapest flights from Spain to Dulles Intl
Explore the most affordable flight options available from Spain to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 18, 2026.

This oojo deal was found by Cheapflights users on 7/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/196:30 am
SVQ
-
IAD
1 stop14h 40m
TAP AIR PORTUGAL
Fri 10/3011:30 pm
IAD
-
SVQ
1 stop19h 15m
TAP AIR PORTUGAL
Deal found 7/16$490
This deal was found by Cheapflights users on 7/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/89:40 am
VLC
-
IAD
1 stop15h 10m
Iberia
Sun 10/185:00 pm
IAD
-
VLC
1 stop10h 05m
Iberia
Deal found 7/17$498
This Mytrip deal was found by Cheapflights users on 7/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/3012:40 pm
VLC
-
IAD
1 stop13h 55m
TAP AIR PORTUGAL
Sat 10/105:05 pm
IAD
-
VLC
1 stop12h 45m
TAP AIR PORTUGAL
Deal found 7/13$504
This Flighttix deal was found by Cheapflights users on 7/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Flighttix is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/246:30 am
SVQ
-
IAD
1 stop20h 05m
TAP AIR PORTUGAL
Mon 8/3110:35 pm
IAD
-
SVQ
1 stop20h 20m
TAP AIR PORTUGAL
Deal found 7/15$511
This Flighttix deal was found by Cheapflights users on 7/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Flighttix is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/317:35 pm
ALC
-
IAD
1 stop25h 35m
TAP AIR PORTUGAL
Sun 9/610:35 pm
IAD
-
ALC
1 stop14h 10m
TAP AIR PORTUGAL
Deal found 7/14$511
This Flighttix deal was found by Cheapflights users on 7/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Flighttix is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/16:30 am
SVQ
-
IAD
1 stop14h 40m
TAP AIR PORTUGAL
Tue 9/810:35 pm
IAD
-
SVQ
1 stop28h 55m
TAP AIR PORTUGAL
Deal found 7/17$515
This Flighttix deal was found by Cheapflights users on 7/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Flighttix is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/276:35 pm
VLC
-
IAD
1 stop26h 35m
TAP AIR PORTUGAL
Wed 9/910:35 pm
IAD
-
VLC
1 stop31h 20m
TAP AIR PORTUGAL
Deal found 7/13$515
This lol.travel deal was found by Cheapflights users on 7/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/109:10 am
AGP
-
IAD
1 stop15h 45m
Iberia
Thu 9/248:30 pm
IAD
-
AGP
1 stop14h 25m
Iberia
Deal found 7/16$516
This FlightHub deal was found by Cheapflights users on 7/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/186:30 am
SVQ
-
IAD
1 stop14h 40m
TAP AIR PORTUGAL
Sat 10/316:25 pm
IAD
-
SVQ
1 stop9h 50m
TAP AIR PORTUGAL
Deal found 7/16$518
This Flighttix deal was found by Cheapflights users on 7/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Flighttix is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/712:40 pm
VLC
-
IAD
1 stop32h 30m
TAP AIR PORTUGAL
Fri 10/2310:50 pm
IAD
-
VLC
1 stop18h 45m
TAP AIR PORTUGAL
Deal found 7/13$518
This Flighttix deal was found by Cheapflights users on 7/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Flighttix is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/2112:35 pm
VLC
-
IAD
1 stop32h 35m
TAP AIR PORTUGAL
Fri 10/210:50 pm
IAD
-
VLC
1 stop12h 40m
TAP AIR PORTUGAL
Deal found 7/16$519
This Kiwi.com deal was found by Cheapflights users on 7/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2712:40 pm
AGP
-
IAD
1 stop12h 30m
Aer Lingus
Wed 9/98:55 pm
IAD
-
AGP
1 stop17h 25m
Aer Lingus
Deal found 7/13$523

Find flight deals from Spain to Dulles Intl

Keep the following information in mind while searching for Spain to Dulles Intl flight deals. Data was last updated July 18, 2026.

Round-trip from

$490
(oojo)

One-way from

$366
(Kiwi.com)

Popular in

June

Cheapest in

February

Average price

$788

Good round-trip deal

$847 or less

Good one-way deal

$683 or less
From Spain to Washington, D.C. Dulles Intl
Search Deals
One-way flight from Spain to Washington, D.C. Dulles Intl
Search Deals
Highest demand for flights based on searches. 10% potential increase in price ($82 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($13 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2026
Search Deals
Price to beat on a round-trip flight from Spain to Washington, D.C. Dulles Intl.
Search Deals
Price to beat on a one-way flight from Spain to Washington, D.C. Dulles Intl.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Spain to Dulles Intl 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, Cheapflights users made 2,558,603 searches. Data last updated July 18, 2026.
Use the filters below to find and compare flights from Spain to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SevilleWashington, D.C.

SVQ - IAD

SVQIAD

Sevilla

Mon 8/24

6:30 am-8:35 pm

1 stop20h 05m

Washington, D.C. Dulles Intl

Mon 8/31

10:35 pm-12:55 am

1 stop20h 20m

$511

SevilleWashington, D.C.

SVQ - IAD

SVQIAD

Sevilla

Tue 9/1

6:30 am-3:10 pm

1 stop14h 40m

Washington, D.C. Dulles Intl

Tue 9/8

10:35 pm-9:30 am

1 stop28h 55m

$515

ValenciaWashington, D.C.

VLC - IAD

VLCIAD

Valencia

Thu 8/27

5:40 am-6:55 pm

1 stop19h 15m

Washington, D.C. Dulles Intl

Wed 9/9

5:45 pm-8:35 pm

1 stop20h 50m

$540

ValenciaWashington, D.C.

VLC - IAD

VLCIAD

Valencia

Thu 8/27

9:40 am-6:55 pm

1 stop15h 15m

Washington, D.C. Dulles Intl

Wed 9/9

5:00 pm-12:15 am

1 stop25h 15m

$543

ValenciaWashington, D.C.

VLC - IAD

VLCIAD

Valencia

Thu 10/8

6:15 am-6:50 pm

1 stop18h 35m

Washington, D.C. Dulles Intl

Fri 10/23

5:10 pm-5:00 pm

1 stop17h 50m

$551

ValenciaWashington, D.C.

VLC - IAD

VLCIAD

Valencia

Thu 11/19

12:00 pm-7:55 pm

1 stop13h 55m

Washington, D.C. Dulles Intl

Mon 11/23

6:05 pm-4:10 pm

1 stop16h 05m

$565

ValenciaWashington, D.C.

VLC - IAD

VLCIAD

Valencia

Wed 9/9

8:20 pm-5:25 pm

1 stop27h 05m

Washington, D.C. Dulles Intl

Thu 9/17

5:45 pm-7:35 pm

1 stop19h 50m

$565

SevilleWashington, D.C.

SVQ - IAD

SVQIAD

Sevilla

Thu 11/5

9:15 am-4:20 pm

1 stop13h 05m

Washington, D.C. Dulles Intl

Mon 11/9

5:50 pm-12:45 pm

1 stop12h 55m

$570

AlicanteWashington, D.C.

ALC - IAD

ALCIAD

Alicante

Thu 12/3

10:20 am-4:20 pm

1 stop12h 00m

Washington, D.C. Dulles Intl

Mon 12/7

5:50 pm-1:10 pm

1 stop13h 20m

$571

MálagaWashington, D.C.

AGP - IAD

AGPIAD

Malaga

Thu 9/17

1:25 pm-6:55 pm

1 stop11h 30m

Washington, D.C. Dulles Intl

Mon 9/21

5:00 pm-4:55 pm

1 stop17h 55m

$571

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/16

Showing 1-10 of 60 resultsSorted by cheapest first
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Best time to book a flight from Spain to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Spain with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Spain to Washington, D.C. Dulles Intl Airport

What is the cheapest month to book a flight from Spain to Washington, D.C. Dulles Intl Airport?

Currently, February is the cheapest month in which you can book a flight from Spain to Washington, D.C. Dulles Intl Airport (average of $541). Flying from Spain to Washington, D.C. Dulles Intl Airport in July is currently the most expensive (average of $887). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from ES to IAD?

Find hourly flight availability from Spain to Dulles Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 18, 2026.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Spain to Washington, D.C. Dulles Intl Airport as you normally would.

Weekly flight availability from Spain to Washington, D.C. Dulles Intl Airport

Explore weekly flight availability from Spain to Dulles Intl. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated July 18, 2026.

The most flights from ES0 to IAD are scheduled on a Monday (9 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (3 on average).

How often are flights from Spain to Washington, D.C. delayed?

About 15% of weekly flights between Spain and Washington, D.C. have experienced delays in the past year, with the average delay time being 172 minutes.

What is the most punctual flight time for Spain to Washington, D.C. flights?

Historically, flights departing at night are less likely to be delayed, whereas flights leaving in the morning tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Wednesday tends to have the lowest number of delays on this route, whereas Friday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on Spain to Washington, D.C. flights?

Over the last year, Iberia have had the lowest number of delays on this route, with just 6% of flights being delayed.

How far ahead should I book a flight from Spain to Washington, D.C. Dulles Intl Airport?

The best time to book flights from Spain to Washington, D.C. Dulles Intl Airport is 68 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

Reviews of airlines servicing Dulles Intl

Get insights into the airlines that provide service to Dulles Intl. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Dulles Intl. Reviews last updated July 18, 2026.
See what other customers who have flown with United Airlines,TAP AIR PORTUGAL, andIberia from Spain to Washington, D.C. Dulles Intl Airport have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
10,005 reviews

Comfort

7.3

Entertainment

7.1

Overall

7.4

Crew

8.1

Boarding

7.7

Food

6.6

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
United Airlines
7.4
Good
10,005 reviews
United Airlines
7.4
Good
10,005 reviews

Comfort

7.3

Entertainment

7.1

Overall

7.4

Crew

8.1

Boarding

7.7

Food

6.6

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
TAP AIR PORTUGAL
7.2
Good
2,339 reviews
United Airlines
7.4
Good
10,005 reviews

Comfort

7.3

Entertainment

7.1

Overall

7.4

Crew

8.1

Boarding

7.7

Food

6.6

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
Iberia
7.0
Good
3,258 reviews
United Airlines
7.4
Good
10,005 reviews

Comfort

7.3

Entertainment

7.1

Overall

7.4

Crew

8.1

Boarding

7.7

Food

6.6

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
Lufthansa
6.8
Okay
8,144 reviews
United Airlines
7.4
Good
10,005 reviews

Comfort

7.3

Entertainment

7.1

Overall

7.4

Crew

8.1

Boarding

7.7

Food

6.6

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

Related info for your journey

Find useful and relevant information for your journey from Spain to Dulles Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Spain to Washington, D.C. Dulles Intl Airport?

    Airlines like TAP AIR PORTUGAL, American Airlines, and Iberia fly from Spain to Washington, D.C. Dulles Intl Airport in about 11h 25m. The time it takes to get you to your destination can typically vary by up to 8h 40m. Airlines will cover a distance of 3779 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from Spain to Washington, D.C. Dulles Intl Airport one-way?

    $287 is the cheapest one-way deal found within the past few days, from American Airlines. You may also be able to find cheap deals on TAP AIR PORTUGAL and Royal Air Maroc, with prices starting from $287 and $339, respectively.

  • What are the most popular routes from Spain to Washington, D.C. Dulles Intl Airport?

    When deciding which route to take from Spain to Washington, D.C. Dulles Intl Airport consider Madrid Barajas - Washington, D.C. Dulles Intl, Barcelona-El Prat - Washington, D.C. Dulles Intl or Malaga - Washington, D.C. Dulles Intl as they are the most popular.

  • What are the most reliable airlines from Spain to Washington, D.C. Dulles Intl Airport?

    The top 3 most reliable airlines when flying from Spain to Washington, D.C. Dulles Intl Airport are American Airlines (85%), Qatar Airways (85%) and Aer Lingus (85%).

  • What are the cheapest flights from Spain to Washington, D.C. Dulles Intl Airport?

    While on average a flight from Spain to Washington, D.C. Dulles Intl Airport is generally $1,270, our data shows the cheapest flight currently is $434. When looking at the most popular route, (Madrid Barajas - Washington, D.C. Dulles Intl), you can expect to pay $490 for that flight.

  • Can I find deals for flights from Spain to Dulles Intl that include hotel bookings?

    Yes. In addition to deals on Spain to Dulles Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Spain to Dulles Intl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Spain to Dulles Intl.

  • Can I find deals for business class flights from Spain to Dulles Intl?

    Yes. Cheapflights offers flight deals from Spain to Dulles Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Spain to Washington, D.C. Dulles Intl Airport?

    Currently, February is the cheapest month in which you can book a flight from Spain to Washington, D.C. Dulles Intl Airport (average of $541). Flying from Spain to Washington, D.C. Dulles Intl Airport in July is currently the most expensive (average of $887). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Washington, D.C. Dulles Intl Airport?

Book flights to Washington, D.C. Dulles Intl Airport if you plan to visit one of these locations
Alexandria
Arlington
Tysons
Owings Mills
Springfield
Lanham
Reston
Herndon
Rockville
Chantilly
Hyattsville
Manassas
Fredericksburg
Falls Church
Hanover
Laurel
Sterling
Clinton
Hunt Valley
Cordova

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Top 4 airlines flying from Spain to Dulles Intl

Discover the top 4 airlines that operate flights from Spain to Dulles Intl. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 18, 2026.
AirlineCheapestAverageFlexibilityOn-time
IberiaCheapest$477Average$696FlexibilityNo cancel feeOn-time77%
TAP AIR PORTUGALCheapest$498Average$643FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$554Average$1,052FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$607Average$906FlexibilityNo cancel feeOn-time76%

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