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$235+ Cheap flights from Dulles Intl (IAD) to Spain

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 1/17. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — MAD
Dec 6 — Dec 131
Sat 12/6
Sat 12/13
1 adult, Economy
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Cheap flight deals from Dulles Intl to Spain

Keep the following information in mind while searching for Dulles Intl to Spain flight deals. Data was last updated November 6, 2025.

Round-trip from

$435
(oojo)

One-way from

$235
(Kiwi.com)

Popular in

June

Cheapest in

November

Average price

$638

Good round-trip deal

$606 or less

Good one-way deal

$399 or less
From Washington, D.C. Dulles Intl to Spain
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One-way flight from Washington, D.C. Dulles Intl to Spain
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Highest demand for flights based on searches. 19% potential increase in price ($187 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($36 potential savings vs. average RT price).
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Average for round-trip flights in November 2025
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Price to beat on a round-trip flight from Washington, D.C. Dulles Intl to Spain.
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Price to beat on a one-way flight from Washington, D.C. Dulles Intl to Spain.
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Find flight deals from Dulles Intl to Spain

Cheapest flights from Dulles Intl to Spain
Explore the most affordable flight options available from Dulles Intl to Spain. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 6, 2025.

This Kiwi.com deal was found by Cheapflights users on 11/6. 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.
Tue 11/258:30 pmIAD - VLC
1 stop30h 40mSWISS
Mon 12/17:45 pmVLC - IAD
1 stop26h 55mSWISS
Deal found 11/6$454
This Kiwi.com deal was found by Cheapflights users on 11/6. 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.
Tue 11/258:30 pmIAD - VLC
1 stop30h 40mMultiple Airlines
Tue 12/21:25 pmVLC - IAD
1 stop31h 15mMultiple Airlines
Deal found 11/6$458
This Kiwi.com deal was found by Cheapflights users on 11/6. 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.
Mon 11/246:00 pmIAD - VLC
1 stop12h 40mMultiple Airlines
Mon 12/17:45 pmVLC - IAD
1 stop26h 55mMultiple Airlines
Deal found 11/6$463
This Kiwi.com deal was found by Cheapflights users on 11/5. 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.
Fri 12/510:30 pmIAD - VLC
1 stop19h 00mTAP AIR PORTUGAL
Sat 12/136:00 amVLC - IAD
1 stop15h 15mTAP AIR PORTUGAL
Deal found 11/5$468
This Booking.com deal was found by Cheapflights users on 11/6. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/99:45 amIAD - BCN
1 stop17h 50mMultiple Airlines
Tue 11/186:50 amBCN - IAD
1 stop15h 00mMultiple Airlines
Deal found 11/6$468
This Air France deal was found by Cheapflights users on 11/6. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/246:50 pmIAD - VLC
1 stop11h 10mMultiple Airlines
Tue 12/24:55 pmVLC - IAD
1 stop29h 10mMultiple Airlines
Deal found 11/6$470
This Flightnetwork deal was found by Cheapflights users on 11/6. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/99:00 amIAD - BCN
2 stops18h 35mAir Canada
Tue 11/181:35 pmBCN - IAD
2 stops32h 11mAir Canada
Deal found 11/6$471
This KLM deal was found by Cheapflights users on 11/5. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/236:50 pmIAD - AGP
1 stop11h 30mMultiple Airlines
Wed 12/310:40 amAGP - IAD
1 stop35h 25mMultiple Airlines
Deal found 11/5$471
This Kiwi.com deal was found by Cheapflights users on 11/6. 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.
Mon 11/2410:55 pmIAD - BCN
1 stop12h 40mMultiple Airlines
Tue 12/28:30 pmBCN - IAD
1 stop24h 10mMultiple Airlines
Deal found 11/6$473
This KLM deal was found by Cheapflights users on 11/6. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/266:05 pmIAD - VLC
1 stop33h 30mKLM
Tue 12/24:55 pmVLC - IAD
1 stop29h 10mKLM
Deal found 11/6$475
This United Airlines deal was found by Cheapflights users on 11/5. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/169:45 amIAD - BCN
1 stop17h 50mUnited Airlines
Tue 11/251:35 pmBCN - IAD
2 stops33h 55mUnited Airlines
Deal found 11/5$476
This Delta deal was found by Cheapflights users on 11/6. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/246:50 pmIAD - MAD
1 stop16h 50mDelta
Wed 12/310:00 amMAD - IAD
2 stops17h 29mDelta
Deal found 11/6$476

Cheapflights Fare Finder

 
Customize your flight search to find flights from Dulles Intl to Spain 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 November 6, 2025.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Spain that are best for you.

Fly from

Dulles Intl

Fly to

Spain

Route

Depart

Return

Price

Washington, D.C.Valencia

IAD - VLC

IADVLC

Washington, D.C. Dulles Intl

Tue 11/25

8:30 pm-9:10 am

1 stop30h 40m

Valencia

Mon 12/1

7:45 pm-4:40 pm

1 stop26h 55m

$454

Washington, D.C.Málaga

IAD - AGP

IADAGP

Washington, D.C. Dulles Intl

Sun 11/23

6:50 pm-4:55 pm

1 stop16h 05m

Malaga

Tue 12/9

10:40 am-4:05 pm

1 stop35h 25m

$471

Washington, D.C.Málaga

IAD - AGP

IADAGP

Washington, D.C. Dulles Intl

Tue 12/2

6:50 pm-12:20 pm

1 stop11h 30m

Malaga

Mon 12/8

10:40 am-4:05 pm

1 stop35h 25m

$471

Washington, D.C.Málaga

IAD - AGP

IADAGP

Washington, D.C. Dulles Intl

Sun 11/23

6:50 pm-12:20 pm

1 stop11h 30m

Malaga

Wed 12/3

10:40 am-4:05 pm

1 stop35h 25m

$471

Washington, D.C.Málaga

IAD - AGP

IADAGP

Washington, D.C. Dulles Intl

Mon 1/26

6:50 pm-12:20 pm

1 stop11h 30m

Malaga

Mon 2/2

10:40 am-4:05 pm

1 stop35h 25m

$471

Washington, D.C.Barcelona

IAD - BCN

IADBCN

Washington, D.C. Dulles Intl

Tue 12/9

6:05 pm-8:20 am

Nonstop8h 15m

Barcelona-El Prat

Tue 12/16

1:35 pm-4:00 pm

2 stops32h 25m

$476

Washington, D.C.Málaga

IAD - AGP

IADAGP

Washington, D.C. Dulles Intl

Sun 11/23

6:50 pm-12:20 pm

1 stop11h 30m

Malaga

Wed 12/3

4:25 pm-5:00 pm

2 stops30h 35m

$481

Washington, D.C.Madrid

IAD - MAD

IADMAD

Washington, D.C. Dulles Intl

Tue 2/24

5:45 pm-4:40 pm

1 stop16h 55m

Madrid Barajas

Tue 3/31

11:15 am-2:00 pm

Nonstop8h 45m

$482

Washington, D.C.Madrid

IAD - MAD

IADMAD

Washington, D.C. Dulles Intl

Tue 11/18

9:45 am-8:00 am

1 stop16h 15m

Madrid Barajas

Thu 11/27

6:25 am-4:58 pm

2 stops16h 33m

$485

Washington, D.C.Valencia

IAD - VLC

IADVLC

Washington, D.C. Dulles Intl

Tue 12/9

6:50 pm-5:55 pm

1 stop17h 05m

Valencia

Tue 12/16

6:05 am-7:19 pm

2 stops19h 14m

$486

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/4

Showing 1-10 of 60 results
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Best time to book a flight from Dulles Intl to Spain

Have a flexible travel schedule? Discover the best time to fly to Spain from Dulles Intl 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 Washington, D.C. Dulles Intl Airport to Spain

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

Currently, September is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Spain (average of $353). Flying from Washington, D.C. Dulles Intl Airport to Spain in June is currently the most expensive (average of $526). 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 IAD to ES?

Find hourly flight availability from Dulles Intl to Spain. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 6, 2025.

One of the essential ways to save on airfare from Washington, D.C. Dulles Intl Airport to Spain is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight in the evening could potentially save you up to 25% on airfare.

What is the cheapest day to fly from Washington, D.C. Dulles Intl Airport to Spain?

Use this chart to determine the cheapest time to fly round-trip from Dulles Intl to Spain. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Washington, D.C. Dulles Intl Airport to Spain flight should consider departing on Tuesday mornings when fares are most often at their lowest. Thursday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing Spain

Get insights into the airlines that provide service to Spain. 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 Spain. Reviews last updated November 6, 2025.
Read through reviews of airlines operating flights from Washington, D.C. Dulles Intl Airport to Spain, such as United Airlines, American Airlines, and TAP AIR PORTUGAL. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,003 reviews

Overall

7.4

Entertainment

7.1

Boarding

7.7

Crew

8.1

Food

6.6

Comfort

7.3

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
United Airlines
7.4
Good
9,003 reviews
United Airlines
7.4
Good
9,003 reviews

Overall

7.4

Entertainment

7.1

Boarding

7.7

Crew

8.1

Food

6.6

Comfort

7.3

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
American Airlines
7.2
Good
11,040 reviews
United Airlines
7.4
Good
9,003 reviews

Overall

7.4

Entertainment

7.1

Boarding

7.7

Crew

8.1

Food

6.6

Comfort

7.3

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
TAP AIR PORTUGAL
7.1
Good
2,046 reviews
United Airlines
7.4
Good
9,003 reviews

Overall

7.4

Entertainment

7.1

Boarding

7.7

Crew

8.1

Food

6.6

Comfort

7.3

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
Iberia
7.0
Good
3,007 reviews
United Airlines
7.4
Good
9,003 reviews

Overall

7.4

Entertainment

7.1

Boarding

7.7

Crew

8.1

Food

6.6

Comfort

7.3

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
British Airways
6.7
Okay
7,496 reviews
United Airlines
7.4
Good
9,003 reviews

Overall

7.4

Entertainment

7.1

Boarding

7.7

Crew

8.1

Food

6.6

Comfort

7.3

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000

Related info for your journey

Find useful and relevant information for your journey from Dulles Intl to Spain. 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 Washington, D.C. Dulles Intl Airport to Spain?

    Departing from Washington, D.C. Dulles Intl Airport to Spain will take you 8h 15m. The distance from Washington, D.C. Dulles Intl Airport to Spain is about 4046 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

    The most popular route from Washington, D.C. Dulles Intl Airport to Spain is Washington, D.C. Dulles Intl - Madrid Barajas. You may also consider Washington, D.C. Dulles Intl - Barcelona-El Prat or Washington, D.C. Dulles Intl - Sevilla.

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

    Consider American Airlines (91%), Qatar Airways (91%) or Aer Lingus (91%) when booking your flight. These represent the most reliable airlines when flying from Washington, D.C. Dulles Intl Airport to Spain.

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

    The cheapest flight price from Washington, D.C. Dulles Intl Airport to Spain is $394. On average you can expect to pay $604. The most popular route, (Washington, D.C. Dulles Intl - Madrid Barajas), can usually be booked for $321.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Dulles Intl to Spain 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 Washington, D.C. Dulles Intl Airport to Spain?

    Currently, September is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Spain (average of $353). Flying from Washington, D.C. Dulles Intl Airport to Spain in June is currently the most expensive (average of $526). 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

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Alternative routes for Dulles Intl to Spain

See prices for flight routes from nearby airports that may be better suited for you.
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Dulles Intl to Luton flights
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Dulles Intl to Zurich flights
Reagan-National to Leonardo da Vinci/Fiumicino flights
Dulles Intl to Athens flights
Baltimore to Leonardo da Vinci/Fiumicino flights
Baltimore to Istanbul flights
Dulles Intl to Vienna flights
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Baltimore to Lisbon flights
Dulles Intl to Munich flights
Baltimore to Keflavik Intl flights
Reagan-National to Barcelona-El Prat flights
Baltimore to Luton flights
Dulles Intl to Sabiha Gokcen flights
Dulles Intl to Bruxelles-National flights
Dulles Intl to Geneva flights
Baltimore to Barcelona-El Prat flights
Baltimore to Dublin flights
Reagan-National to Keflavik Intl flights
Reagan-National to Dublin flights
Dulles Intl to Edinburgh flights
Dulles Intl to Copenhagen flights
Baltimore to Frankfurt flights
Reagan-National to Frankfurt flights
Dulles Intl to Malpensa flights

Top 10 airlines flying from Dulles Intl to Spain

Discover the top 10 airlines that operate flights from Dulles Intl to Spain. 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 November 6, 2025.
AirlineCheapestAverageFlexibilityOn-time
Brussels AirlinesCheapest$198Average$733FlexibilityNo cancel feeOn-timeN/A
SWISSCheapest$322Average$831FlexibilityNo cancel feeOn-time79%
TAP AIR PORTUGALCheapest$324Average$630FlexibilityNo cancel feeOn-timeN/A
Air CanadaCheapest$353Average$510FlexibilityNo cancel feeOn-time67%
IcelandairCheapest$389Average$579FlexibilityNo cancel feeOn-time76%
IberiaCheapest$389Average$740FlexibilityNo cancel feeOn-time77%
Scandinavian AirlinesCheapest$409Average$592FlexibilityNo cancel feeOn-time77%
KLMCheapest$409Average$692FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$426Average$729FlexibilityNo cancel feeOn-time69%
FinnairCheapest$448Average$584FlexibilityNo cancel feeOn-time76%

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