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$242+ 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 4/16. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — MAD
Feb 28 — Mar 71
Sat 2/28
Sat 3/7
1 adult, Economy
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Cheap 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 January 29, 2026.

This oojo deal was found by Cheapflights users on 1/27. 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 3/96:30 pm
IAD
-
VLC
1 stop18h 00m
TAP AIR PORTUGAL
Mon 3/166:15 pm
VLC
-
IAD
1 stop26h 20m
TAP AIR PORTUGAL
Deal found 1/27$392
This oojo deal was found by Cheapflights users on 1/27. 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.
Tue 4/285:05 pm
IAD
-
BIO
1 stop12h 35m
TAP AIR PORTUGAL
Tue 5/56:50 pm
BIO
-
IAD
1 stop26h 15m
TAP AIR PORTUGAL
Deal found 1/27$392
This oojo deal was found by Cheapflights users on 1/28. 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 2/165:30 pm
IAD
-
VLC
1 stop18h 00m
TAP AIR PORTUGAL
Wed 3/412:00 pm
VLC
-
IAD
1 stop15h 00m
TAP AIR PORTUGAL
Deal found 1/28$393
This oojo deal was found by Cheapflights users on 1/28. 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.
Sat 4/2510:35 pm
IAD
-
BIO
1 stop13h 30m
TAP AIR PORTUGAL
Tue 5/56:50 pm
BIO
-
IAD
1 stop26h 15m
TAP AIR PORTUGAL
Deal found 1/28$393
This Mytrip deal was found by Cheapflights users on 1/28. 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.
Mon 3/25:30 pm
IAD
-
BIO
1 stop18h 25m
TAP AIR PORTUGAL
Mon 3/97:20 pm
BIO
-
IAD
1 stop25h 15m
TAP AIR PORTUGAL
Deal found 1/28$412
This FlightHub deal was found by Cheapflights users on 1/28. 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 2/2210:30 pm
IAD
-
VLC
1 stop13h 00m
TAP AIR PORTUGAL
Tue 3/36:15 pm
VLC
-
IAD
1 stop32h 45m
TAP AIR PORTUGAL
Deal found 1/28$416
This Kiwi.com deal was found by Cheapflights users on 1/28. 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.
Sun 2/2210:30 pm
IAD
-
VLC
1 stop13h 00m
TAP AIR PORTUGAL
Wed 3/412:00 pm
VLC
-
IAD
1 stop15h 00m
TAP AIR PORTUGAL
Deal found 1/28$420
This Kiwi.com deal was found by Cheapflights users on 1/28. 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 3/35:30 pm
IAD
-
VLC
1 stop24h 00m
TAP AIR PORTUGAL
Tue 3/106:15 pm
VLC
-
IAD
1 stop32h 45m
TAP AIR PORTUGAL
Deal found 1/28$427
This FlightHub deal was found by Cheapflights users on 1/28. 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.
Thu 4/2310:35 pm
IAD
-
TFS
1 stop32h 40m
TAP AIR PORTUGAL
Thu 5/71:05 pm
TFS
-
IAD
1 stop12h 30m
TAP AIR PORTUGAL
Deal found 1/28$432
This oojo deal was found by Cheapflights users on 1/27. 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.
Wed 1/2810:30 pm
IAD
-
BCN
1 stop19h 15m
TAP AIR PORTUGAL
Wed 2/410:55 am
BCN
-
IAD
1 stop16h 05m
TAP AIR PORTUGAL
Deal found 1/27$442
This oojo deal was found by Cheapflights users on 1/29. 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.
Wed 8/195:45 pm
IAD
-
BIO
1 stop11h 45m
TAP AIR PORTUGAL
Wed 8/2612:25 pm
BIO
-
IAD
1 stop14h 10m
TAP AIR PORTUGAL
Deal found 1/29$442
This oojo deal was found by Cheapflights users on 1/29. 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.
Tue 8/1810:35 pm
IAD
-
BIO
1 stop30h 55m
TAP AIR PORTUGAL
Tue 8/256:50 pm
BIO
-
IAD
1 stop26h 15m
TAP AIR PORTUGAL
Deal found 1/29$446

Find 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 January 29, 2026.

Round-trip from

$392
(oojo)

One-way from

$242
(Kiwi.com)

Popular in

June

Cheapest in

January

Average price

$564

Good round-trip deal

$523 or less

Good one-way deal

$364 or less
From Washington, D.C. Dulles Intl to Spain
Search Deals
One-way flight from Washington, D.C. Dulles Intl to Spain
Search Deals
Highest demand for flights based on searches. 21% potential increase in price ($205 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($37 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals
Price to beat on a round-trip flight from Washington, D.C. Dulles Intl to Spain.
Search Deals
Price to beat on a one-way flight from Washington, D.C. Dulles Intl to Spain.
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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 January 29, 2026.
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.Bilbao

IAD - BIO

IADBIO

Washington, D.C. Dulles Intl

Wed 4/29

10:35 pm-11:30 am

1 stop30h 55m

Bilbao

Thu 5/7

12:15 pm-8:35 pm

1 stop14h 20m

$451

Washington, D.C.Palma de Mallorca

IAD - PMI

IADPMI

Washington, D.C. Dulles Intl

Wed 4/22

5:25 pm-5:50 pm

1 stop18h 25m

Palma de Mallorca Son Sant Joan

Mon 4/27

6:40 pm-2:35 pm

1 stop25h 55m

$469

Washington, D.C.Madrid

IAD - MAD

IADMAD

Washington, D.C. Dulles Intl

Tue 2/10

10:28 pm-4:40 pm

2 stops36h 12m

Madrid Barajas

Tue 2/17

1:35 pm-4:28 pm

2 stops32h 53m

$479

Washington, D.C.Madrid

IAD - MAD

IADMAD

Washington, D.C. Dulles Intl

Tue 2/24

1:02 pm-4:40 pm

2 stops21h 38m

Madrid Barajas

Tue 3/3

1:35 pm-9:16 pm

2 stops37h 41m

$480

Washington, D.C.Madrid

IAD - MAD

IADMAD

Washington, D.C. Dulles Intl

Tue 2/10

5:45 pm-4:40 pm

1 stop16h 55m

Madrid Barajas

Wed 2/18

5:55 am-2:35 pm

1 stop14h 40m

$485

Washington, D.C.Bilbao

IAD - BIO

IADBIO

Washington, D.C. Dulles Intl

Fri 5/1

9:00 pm-7:35 pm

1 stop16h 35m

Bilbao

Sat 5/16

8:35 pm-7:00 pm

1 stop28h 25m

$487

Washington, D.C.Palma de Mallorca

IAD - PMI

IADPMI

Washington, D.C. Dulles Intl

Sun 4/19

8:20 pm-7:50 pm

1 stop17h 30m

Palma de Mallorca Son Sant Joan

Thu 4/23

9:55 am-4:50 pm

1 stop12h 55m

$496

Washington, D.C.Madrid

IAD - MAD

IADMAD

Washington, D.C. Dulles Intl

Wed 2/25

12:24 pm-9:10 am

2 stops14h 46m

Madrid Barajas

Wed 3/4

6:00 am-7:09 pm

2 stops19h 09m

$498

Washington, D.C.Bilbao

IAD - BIO

IADBIO

Washington, D.C. Dulles Intl

Mon 3/2

5:30 pm-5:55 pm

1 stop18h 25m

Bilbao

Sun 3/15

6:40 pm-4:15 pm

1 stop26h 35m

$498

Washington, D.C.Madrid

IAD - MAD

IADMAD

Washington, D.C. Dulles Intl

Tue 5/5

10:35 pm-5:00 pm

1 stop12h 25m

Madrid Barajas

Tue 5/12

8:10 pm-3:05 pm

1 stop24h 55m

$512

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/28

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, January is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Spain (average of $337). Flying from Washington, D.C. Dulles Intl Airport to Spain in June is currently the most expensive (average of $589). 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.

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

About 20% of weekly flights between Washington, D.C. and Spain have experienced delays in the past year, with the average delay time being 179 minutes.

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

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

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

Sunday 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 Washington, D.C. to Spain flights?

Over the last year, Iberia have had the lowest number of delays on this route, with just 13% of flights being delayed.

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 January 29, 2026.
Read through reviews of airlines operating flights from Washington, D.C. Dulles Intl Airport to Spain, such as United Airlines, TAP AIR PORTUGAL, and Iberia. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,215 reviews

Boarding

7.7

Entertainment

7.1

Comfort

7.3

Food

6.6

Crew

8.1

Overall

7.4

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
9,215 reviews
United Airlines
7.4
Good
9,215 reviews

Boarding

7.7

Entertainment

7.1

Comfort

7.3

Food

6.6

Crew

8.1

Overall

7.4

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
7.1
Good
2,130 reviews
United Airlines
7.4
Good
9,215 reviews

Boarding

7.7

Entertainment

7.1

Comfort

7.3

Food

6.6

Crew

8.1

Overall

7.4

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
3,100 reviews
United Airlines
7.4
Good
9,215 reviews

Boarding

7.7

Entertainment

7.1

Comfort

7.3

Food

6.6

Crew

8.1

Overall

7.4

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
7,756 reviews
United Airlines
7.4
Good
9,215 reviews

Boarding

7.7

Entertainment

7.1

Comfort

7.3

Food

6.6

Crew

8.1

Overall

7.4

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
British Airways
6.7
Okay
7,705 reviews
United Airlines
7.4
Good
9,215 reviews

Boarding

7.7

Entertainment

7.1

Comfort

7.3

Food

6.6

Crew

8.1

Overall

7.4

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 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 18h 25m. The distance from Washington, D.C. Dulles Intl Airport to Spain is about 4131 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

    The cheapest airline one-way is TAP AIR PORTUGAL, with whom users have recently found tickets for as low as $184. However, be on the lookout for offers from Icelandair and Turkish Airlines, as they are both options that can get you from Washington, D.C. Dulles Intl Airport to Spain for a low price.

  • 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 - Malaga.

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

    Consider Air Canada (83%), Brussels Airlines (83%) or United Airlines (83%) 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 $237. On average you can expect to pay $550. The most popular route, (Washington, D.C. Dulles Intl - Madrid Barajas), can usually be booked for $371.

  • 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, January is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Spain (average of $337). Flying from Washington, D.C. Dulles Intl Airport to Spain in June is currently the most expensive (average of $589). 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.
Dulles Intl to Heathrow flights
Dulles Intl to Charles de Gaulle flights
Baltimore to Heathrow flights
Dulles Intl to Leonardo da Vinci/Fiumicino flights
Dulles Intl to Madrid flights
Dulles Intl to Dublin flights
Dulles Intl to Athens flights
Dulles Intl to Gatwick flights
Dulles Intl to Lisbon flights
Reagan-National to Heathrow flights
Dulles Intl to Amsterdam flights
Dulles Intl to Barcelona-El Prat flights
Dulles Intl to Stansted flights
Dulles Intl to London City flights
Reagan-National to Charles de Gaulle flights
Dulles Intl to Orly flights
Reagan-National to Gatwick flights
Baltimore to Charles de Gaulle flights
Baltimore to Gatwick flights
Dulles Intl to Istanbul flights
Dulles Intl to Frankfurt flights
Reagan-National to Leonardo da Vinci/Fiumicino flights
Baltimore to Leonardo da Vinci/Fiumicino flights
Reagan-National to Orly flights
Dulles Intl to Edinburgh flights
Reagan-National to Madrid flights
Dulles Intl to Bruxelles-National flights
Baltimore to Madrid flights
Baltimore to Lisbon flights
Reagan-National to Lisbon flights
Reagan-National to Istanbul flights
Baltimore to Athens flights
Dulles Intl to Keflavik Intl flights
Reagan-National to Athens flights
Baltimore to Istanbul flights
Baltimore to Dublin flights
Dulles Intl to Zurich flights
Reagan-National to Dublin flights
Dulles Intl to Luton flights
Dulles Intl to Munich flights
Dulles Intl to Copenhagen flights
Baltimore to Keflavik Intl flights
Baltimore to Barcelona-El Prat flights
Dulles Intl to Vicenza flights
Reagan-National to Barcelona-El Prat flights
Reagan-National to Amsterdam flights
Baltimore to Amsterdam flights
Dulles Intl to Sabiha Gokcen flights
Dulles Intl to Vienna flights
Reagan-National to Keflavik Intl 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 January 29, 2026.
AirlineCheapestAverageFlexibilityOn-time
Brussels AirlinesCheapest$198Average$731FlexibilityNo cancel feeOn-timeN/A
SWISSCheapest$200Average$749FlexibilityNo cancel feeOn-time79%
TAP AIR PORTUGALCheapest$312Average$687FlexibilityNo cancel feeOn-timeN/A
Air CanadaCheapest$353Average$510FlexibilityNo cancel feeOn-time67%
IberiaCheapest$385Average$713FlexibilityNo cancel feeOn-time77%
IcelandairCheapest$389Average$526FlexibilityNo cancel feeOn-time76%
Scandinavian AirlinesCheapest$398Average$556FlexibilityNo cancel feeOn-time77%
KLMCheapest$409Average$644FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$416Average$758FlexibilityNo cancel feeOn-time69%
FinnairCheapest$431Average$554FlexibilityNo cancel feeOn-time76%

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