$136 Find Cheap Flights from Washington Dulles Airport to Spain

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Dulles Intl to Spain departing on 9/21. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

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Cheap Flights from Dulles Intl to Spain

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Madrid
Madrid1 stop$308
Málaga
Málaga1 stop$413
Seville
Seville1 stop$429
Valencia
Valencia1 stop$423
Ibiza
Ibiza2 stops$453
Bilbao
Bilbao1 stop$440
Alicante
Alicante1 stop$434
San Sebastian
San Sebastian2 stops$571
Mahón
Mahón2 stops$541
Oviedo
Oviedo1 stop$570
Vigo
Vigo1 stop$619
A Coruña
A Coruña1 stop$618
Arrecife
Arrecife2 stops$583
Madrid
Madrid1 stop$308
Málaga
Málaga1 stop$413
Seville
Seville1 stop$429
Valencia
Valencia1 stop$423
Ibiza
Ibiza2 stops$453
Bilbao
Bilbao1 stop$440
Alicante
Alicante1 stop$434
San Sebastian
San Sebastian2 stops$571
Mahón
Mahón2 stops$541
Oviedo
Oviedo1 stop$570
Vigo
Vigo1 stop$619
A Coruña
A Coruña1 stop$618
Arrecife
Arrecife2 stops$583

Book Cheap Dulles Intl to Spain Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Dulles Intl to Spain that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Dulles Intl to Spain

Sun, Sep 21 - Wed, Oct 1
SWISS Logo
8:45 pm - 5:50 pmIAD-BCN
15h 05m1 stop
SWISS Logo
6:00 am - 4:15 pmBCN-IAD
16h 15m1 stop
$136SWISS
Find Deal
Tue, Oct 7 - Tue, Oct 14
TAP AIR PORTUGAL Logo
5:00 pm - 3:20 pmIAD-MAD
16h 20m1 stop
TAP AIR PORTUGAL Logo
1:35 pm - 8:50 pmMAD-IAD
13h 15m1 stop
$308TAP AIR PORTUGAL
Find Deal
Sun, Nov 9 - Wed, Nov 19
United Airlines Logo
9:55 am - 8:00 amIAD-MAD
16h 05m1 stop
United Airlines Logo
1:35 pm - 5:30 pmMAD-IAD
33h 55m2 stops
$341United Airlines
Find Deal
Mon, Sep 22 - Tue, Oct 21
United Airlines Logo
10:18 pm - 6:40 amIAD-MAD
26h 22m2 stops
United Airlines Logo
12:45 pm - 1:51 pmMAD-IAD
31h 06m2 stops
$345United Airlines
Find Deal
Mon, Oct 13 - Tue, Oct 21
Iberia Logo
4:35 pm - 6:25 amIAD-MAD
7h 50mnonstop
Iberia Logo
11:50 am - 3:00 pmMAD-IAD
9h 10mnonstop
$350Iberia
Find Deal
Mon, Nov 3 - Tue, Nov 11
Iberia Logo
6:20 pm - 2:15 pmIAD-MAD
13h 55m1 stop
Iberia Logo
12:50 pm - 4:30 pmMAD-IAD
9h 40mnonstop
$373Iberia
Find Deal
Mon, Dec 8 - Thu, Dec 18
British Airways Logo
9:45 pm - 4:50 pmIAD-AGP
13h 05m1 stop
British Airways Logo
11:55 am - 7:55 pmAGP-IAD
14h 00m1 stop
$490British Airways
Find Deal
Mon, Dec 8 - Tue, Dec 16
British Airways Logo
9:45 pm - 11:30 amIAD-AGP
31h 45m1 stop
British Airways Logo
5:50 pm - 3:35 pmAGP-IAD
27h 45m1 stop
$491British Airways
Find Deal
Wed, Oct 1 - Thu, Oct 9
Lufthansa Logo
10:20 pm - 11:25 pmIAD-BIO
19h 05m1 stop
Lufthansa Logo
6:45 am - 1:30 pmBIO-IAD
12h 45m1 stop
$492Lufthansa
Find Deal
Tue, Oct 14 - Fri, Oct 31
Lufthansa Logo
3:25 pm - 12:00 pmIAD-VLC
14h 35m1 stop
Lufthansa Logo
6:10 am - 4:50 pmVLC-IAD
15h 40m1 stop
$495Lufthansa
Find Deal
Booking Insights

KAYAK's insights & trends for Dulles Intl to Spain flights

Get data-powered insights and trends into flights from Dulles Intl to Spain to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest Washington, D.C. Dulles Intl Airport to Spain flight route?

The cheapest price for flight routes found by users searching on KAYAK in the last 2 weeks for round-trip flights from Washington, D.C. Dulles Intl Airport to Spain.

The cheapest ticket to Spain from Washington, D.C. Dulles Intl Airport found in the last 72 hours was to Madrid, at $353 round-trip. The most popular route is from Washington, D.C. Dulles Intl Airport (IAD) to Madrid (MAD), and the cheapest round-trip airline ticket found on this route in the last 72 hours was $353.

Can I save money by flying with a layover from Washington, D.C. Dulles Intl Airport to Spain?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of $1,476, prices are generally cheapest when you fly direct.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Washington, D.C. Dulles Intl Airport to Spain, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Washington, D.C. Dulles Intl Airport to Spain is January, when tickets cost $616 (return) on average. On the other hand, the most expensive months are June and July, when the average cost of round-trip tickets is $1,066 and $970 respectively.

What’s the cheapest day of the week to fly from Washington Dulles Airport to Spain?

The average price of all round-trip flights from Washington, D.C. Dulles Intl Airport to Spain clicked on KAYAK for each day over the last 12 months.

When flying from Washington Dulles Airport to Spain, you should consider leaving on a Monday and avoid Saturdays if you are looking for the best rates. For your return to Washington Dulles Airport, you’ll find the best rates on Wednesdays and the most expensive ones on Sundays.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Washington, D.C. Dulles Intl Airport to Spain, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Washington, D.C. Dulles Intl Airport to Spain, you should book around 3 weeks before departure, which saves you about 42% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 9 weeks before departure.


Good to know

Low seasonFebruary
Cheapest flight$136
Best time to beat the crowds with an average 15% drop in price.
Most popular time to fly with an average 3% increase in price.
Flight from Washington Dulles Airport to Barcelona-El Prat

FAQs - booking Spain flights

  • How does KAYAK find such low prices on flights from Washington Dulles Airport to Spain?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Washington Dulles Airport to Spain.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Washington Dulles Airport to Spain?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Washington Dulles Airport to Spain is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Washington Dulles Airport to Spain?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Washington Dulles Airport to Spain with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington Dulles Airport to Spain?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Washington Dulles Airport to Spain up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to Spain?

    The cheapest time of day to fly to Spain is generally in the afternoon, when round-trip flights cost $882 on average. Morning departures are around 21% cheaper than evening flights, on average. The most expensive time of day to fly to Spain is generally in the evening, which is peak travel time and where the average cost of a ticket is $1,229.

Reviews of the top 5 airlines serving from Dulles Intl to Spain

 
Need help choosing which airline to fly with from Dulles Intl to Spain? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 8894 reviews
6.6Food
7.7Boarding
8.1Crew
7.3Comfort
7.1Entertainment
Airline reviews

Terrible. Delayed 7 hours, and cancelled the flight, leaving me stranded and out of pocket $500 for an alternative last minute flight

2.0 MediocreV, Jul 2025MIA - EWR
Read more United Airlines reviews

Terrible. Delayed 7 hours, and cancelled the flight, leaving me stranded and out of pocket $500 for an alternative last minute flight

Was on time until within 1 hour of flight-how does that happen? Staff very friendly.

the delay for 3 hours was understandable due to weather conditions but the flight should’ve provided some on flight compensations or at least provide more food.

Weather delay in Chicago?. No sense of urgency to make connection in Chicago for our connecting flight that wasn't delayed. Connection was missed.

The best airline I have ever travel , really good customer service, attention and service !!

I liked the choice of lemon ginger tea. I think stewardesses can be more considerate of older people needs.

We were given vouchers we couldn’t use with a 5.5 hour delay

I fly UAL 7-8 times per year. This flight was not up to snuff because it boarded very late "due to unexpected delays in restocking the plane" and yet Flight Aware showed the plane had landed some 10 hours earlier--so I think they could have planned accordingly. The FA's were nice but harried. The video system had to be rebooted 3-4 times. The food service was rather abrupt; they forgot my row and when I asked for my meal, they brought it with some impatience. Overall, the flight was fine, but the little details made it feel somewhat mundane and hurried.

I didn’t get on plane. Passport being processed by consulate with visa application. Tried to cancel through underpricer after purchasing cacelling for any reason. No dice, they are thieves.

When I booked it on Kayak it aaid that I wasn't allowed hamd luggage. I called United Airlines and it took them 6 minutes to figure out if I was allowed free hand luggage. Surely something that simple they should be able to tell me instantly.

Flight was fine. Second meal ( fish sandwich on hard roll) was awful. My suitcase didn’t make the flight. It had been located, but won’t be delivered until tomorrow. Five days after flight

Boarding experience was awful. TAP claims I did not have check in luggage with tickets. I went 3-4 check in agents until I finally found a helpful kind agent who checked in my luggage with no fees. On top of that our flight was over 2 hours delayed with barely an apology or explanation.

We flew TAP last October from Newark to Lisbon. The meal was bad. This flight had good food. Also, this flight was delayed. There were TAP employees waiting at Lisbon to make sure we made our connecting flight. I find the TAP website and app frustrating, but the service once we reached the airport was very good

Flight being delayed for 35 minutes had me lose the connection to my transport

boarding is so disorganized, i was literally appalled at the boarding experience

Comfortable but not Polaris or Delta comfort Business Class. Overall 7 out of 10

The long wait at JFK made the trip horrible. Also not having enough buses when we deplaned was annoying

Flight was delayed on 6/20 to miss international connection. Next flight out was 24 hours later. Not acceptable.

Terrible! I had to cancel our flights due to my wife Carmen requiring an unexpected second cancer surgery. I first contacted orbitz about obtaining a credit due to medical interruption and orbitz directed me to TAP. I contacted TAP and the representative directed me back to orbitz and refused to even explain what TAP’s medical interruption policy was or how it worked—I wanted that information for a second call to orbitz. Terrible service at a particularly difficult time.

Food was edible, not great, and served by attendants who looked like they really were not happy working the flight. The section I was in was too warm making the 11 hour flight uncomfortable. Other areas on the plane were fine.

Horrible experience airline crew was unprofessional. Flight was delayed. Suit cases did not arrive. Never flying iberia again

People point to America as the model of late stage capitalism. My friends, airlines in america at least give you WiFi, and they haven’t quite smashed people into cardboard tv dinner trays yet. Iberia has mastered the tv dinner seat and WiFi is 20 euros. Be serious yall.

Iberia lost my bag, said they found it in another country, said they sent it to me, but never did. Went my whole trip without my stuff, but expecting it to show up because that’s what they said would happen. Their communication sucks, their website sucks, and to top it all off, their seats are small and uncomfortable. They’re bad at their jobs and they should feel bad about themselves. Do not even get me started on the flight home. AVOID!

The flight was delayed over 4 hours. Business class is just slightly upgraded economy.

Delayed and missed connections on leaving the states and returning Planes were old and small- very uncomfortable. Meals were good but very infrequent service for even water/drinks. No explanations for 3+ hour delay

Boarding on the buses isn’t efficient. Overall, it was great.

BEWARE!!! Iberia changes your seats at random. I paid for a window seat and they changed it to one in the middle aisle resting against the bathroom- can’t lean back + hear every flush. This on a 11 hour flight.. There were families that were broken up with separate seats all over the plane. Lots of upset passengers showing their seat confirmation to the besieged and helpless airline steward. Also, the gluten free meal was tasteless.

Iberia airlines was late on every flight I had. It was very difficult to communicate in English with iberia airlines and airport employees.

ground crew and check-in was pathetic - insisted on charging me for luggage even though the ticket said it was already included. They also accidentally sent my luggage through without a luggage tag and had to retrieve it. Generally, it was like a bad movie.

The app on phone and the online check in is not good, it would not give me the option of Spain or Madrid City in the drop down menu and I couldn't move forward with online check in.

Hate their old flights, boatding, food and services. Very poor quality

Insulting. Lufthansa flight from Munich to EWR had us getting our luggage when we were told in Florence that it would follow us to Indianapolis. It did not. Then very slow security in EWR caused me and three other passengers from Lufthansa flight from Munich to miss the boarding closure. Behind me were two elderly grandparents and their ten year old grandson. We were all refused entry on a plane to Indy that was still at the gate. The doors had not even closed inside the terminal yet. No apologies or compensation offered. Not even a meal voucher let alone a free hotel stay for our inconvenience. I m not sure what the other three passengers behind me did ( they were elderly with a grandson, recall), but I stated 12 hours overnight in a chilly EWR airport until next flight to Indy at 850 next morning.

The food could be better, more snacks. And have some plugs to chargue the phone.

The pasta in the evening meal was tasteless. Otherwise, the flight was okay.

Everything was really great just The aircraft was too old and sounded it will break during takeoff

Seating was average for a first class seat. It very modern. I expected better.

Flight was a little late. The crew was courteous, food ok

Bad! Disaster!! The LH419 was cancelled after 4 hrs on board with no AC and no toilets

Poor food on flight between Toronto and Stockholm Airport Toronto too crowded

Extremely pleased with the crew. Best flight attendants ever! Very friendly, genuinely caring and attentive.

My experience with British Airways is excellent, thanks for all 🫶🏻✈️

Was delayed on first leg and missed connection. They would not let me board although I arrived at the gate 5 min before take off. I was delayed 24hrs

Old tired plane, Uncomfortable business class seat. Breakfast dreadful and meagre. At least flight was on time!

Safe arrival. Improvement on Time efficiency Effective Communication will be great.

The crew is very friendly and helpful. The food is good for airplane food. The flight is long and hard to sleep. The leg space is great. The plane arrived in plenty of time.

A good flight back to Tampa and thankfully although we had a 90 minute delay because of thunder storms from Charlotte to bottom iof Florida, it was a prudent to avoid these for a comfortable flight as opposed to being tossed around with turbulence.

They removed our booking without telling us. Cost us thousands to book last minute

Enjoyable flight, helpful crew everything was organized to accommodate passengers.

Captain sick. Unable to get replacement so delayed me 30 hours, many others delayed 54 hours. TOTALLY DESTROYED ALL MY PLANS, including lost my rental car which would now cost over 5 times what I paid so stuck with buses n trains... lost hotel reservations.... HORRIBLE!!!

The international flight from PHL to Lisbon was one of the worst I’ve experienced, ever. What was really disappointing was the entire experience of comfort and service in the coach cabin after takeoff. The food was inedible and the wine served with dinner was such low quality - it tasted of petrol. I couldn’t eat more than a bite or two of the chicken entree, being worried it would make me ill. The service took so long to reach the entire coach cabin, I ended up having the lights turned off on me as though I had to rush though dinner (though as I mentioned, it wasn’t as if I ate much - only the salad). Most of the attendants seemed generally annoyed and were not friendly or polite. While there was some turbulence, it wasn’t too uncomfortable and I know that is just a chance. The temperature of the cabin was so warm, even a friend a row or two up and on the other side of the plane felt like this. To top it all off, the seat was so uncomfortable and flattened/overused, I had back pains for DAYS afterward.

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