$487+ Cheap flights from Barcelona-El Prat (BCN) 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 9/16. Fares are subject to change and may not be available on all flights or dates of travel.
BCN — IAD
Oct 2 — Oct 91
Round-trip
1 adult, Economy
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Find cheap flights from Barcelona-El Prat to Dulles Intl with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheapflights Tip: The best prices from Barcelona-El Prat to Washington, D.C. Dulles Intl are usually found in February or January, booked 18 days in advance, depart on a Tuesday or Saturday and return on a Monday
Cheap flight deals from Barcelona-El Prat to Dulles Intl
Cheapest
Best
Last-minute
One-way
Cheapest flights from Barcelona-El Prat to Dulles IntlExplore the most affordable flight options available from Barcelona-El Prat to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 2, 2026.
Explore the most affordable flight options available from Barcelona-El Prat to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 2, 2026.
This TAP AIR PORTUGAL deal was found by Cheapflights users on 8/31. 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 TAP AIR PORTUGAL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2011:25 am -
1 stop15h 10m
Wed 10/2811:30 pm -
1 stop19h 15m
Deal found 8/31![TAP AIR PORTUGAL logo]()
$680
This Scandinavian Airlines deal was found by Cheapflights users on 8/30. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/1512:50 pm -
2 stops34h 10m
Fri 10/238:20 pm -
1 stop15h 50m
Deal found 8/30![Scandinavian Airlines logo]()
$683
This lol.travel deal was found by Cheapflights users on 8/28. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1112:15 pm -
2 stops14h 59m
Thu 9/243:45 pm -
1 stop10h 15m
Deal found 8/28![Air Canada logo]()
$684
This Justfly.com deal was found by Cheapflights users on 8/30. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/3110:40 pm -
1 stop22h 30m
Mon 9/710:35 pm -
1 stop20h 55m
Deal found 8/30![TAP AIR PORTUGAL logo]()
$685
This Justfly.com deal was found by Cheapflights users on 8/28. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/216:45 am -
1 stop14h 30m
Mon 1/45:25 pm -
1 stop24h 20m
Deal found 8/28![TAP AIR PORTUGAL logo]()
$686
This TAP AIR PORTUGAL deal was found by Cheapflights users on 8/31. 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 TAP AIR PORTUGAL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/1311:25 am -
1 stop33h 45m
Sat 11/75:25 pm -
1 stop20h 55m
Deal found 8/31![TAP AIR PORTUGAL logo]()
$687
This Kiwi.com deal was found by Cheapflights users on 8/29. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/811:25 am -
1 stop33h 45m
Sat 10/248:40 pm -
2 stops31h 30m
Deal found 8/29![Multiple Airlines logo]()
$688
This Kiwi.com deal was found by Cheapflights users on 8/29. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/310:40 pm -
1 stop22h 30m
Sat 9/1910:35 pm -
1 stop20h 55m
Deal found 8/29![TAP AIR PORTUGAL logo]()
$691
This Trip.com deal was found by Cheapflights users on 9/1. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/2111:25 am -
1 stop33h 45m
Sat 10/316:25 pm -
1 stop12h 20m
Deal found 9/1![TAP AIR PORTUGAL logo]()
$692
Best flights from Barcelona-El Prat to Dulles IntlDiscover carefully curated flight deals from Barcelona-El Prat to Dulles Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 2, 2026.
Discover carefully curated flight deals from Barcelona-El Prat to Dulles Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 2, 2026.
This United Airlines deal was found by Cheapflights users on 8/28. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/1411:50 am -
2 stops18h 48m
Mon 1/1812:35 pm -
1 stop13h 45m
Deal found 8/28![United Airlines logo]()
$684
This Delta deal was found by Cheapflights users on 8/30. 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.
Fri 10/236:20 am -
1 stop15h 15m
Fri 11/63:04 pm -
2 stops14h 06m
Deal found 8/30![Delta logo]()
$704
This KLM deal was found by Cheapflights users on 8/29. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/209:20 am -
1 stop12h 15m
Wed 10/2810:30 pm -
1 stop13h 30m
Deal found 8/29![Multiple Airlines logo]()
$706
This Booking.com deal was found by Cheapflights users on 9/1. 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.
Tue 12/16:45 am -
1 stop14h 00m
Wed 12/210:30 pm -
1 stop19h 15m
Deal found 9/1![TAP AIR PORTUGAL logo]()
$716
This Delta deal was found by Cheapflights users on 8/30. 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.
Thu 10/159:20 am -
1 stop12h 15m
Fri 11/1312:35 pm -
2 stops14h 25m
Deal found 8/30![Delta logo]()
$704
This Lufthansa deal was found by Cheapflights users on 8/30. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/99:40 am -
1 stop13h 05m
Sun 10/116:35 pm -
Nonstop7h 45m
Deal found 8/30![Multiple Airlines logo]()
$712
This United Airlines deal was found by Cheapflights users on 8/29. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/196:40 am -
1 stop12h 55m
Sat 10/317:50 pm -
Nonstop8h 10m
Deal found 8/29![United Airlines logo]()
$723
This Delta deal was found by Cheapflights users on 9/1. 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.
Thu 9/176:20 am -
1 stop15h 15m
Sat 10/36:26 pm -
2 stops16h 44m
Deal found 9/1![Delta logo]()
$706
This United Airlines deal was found by Cheapflights users on 8/31. 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.
Wed 10/2111:15 am -
Nonstop8h 50m
Wed 10/289:10 pm -
1 stop11h 55m
Deal found 8/31![United Airlines logo]()
$730
This Delta deal was found by Cheapflights users on 8/28. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/136:20 am -
1 stop15h 15m
Sat 11/76:32 pm -
2 stops16h 28m
Deal found 8/28![Delta logo]()
$708
This Delta deal was found by Cheapflights users on 8/28. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2111:00 am -
1 stop19h 42m
Wed 11/412:30 pm -
2 stops15h 55m
Deal found 8/28![Delta logo]()
$721
Last-minute flights from Barcelona-El Prat to Dulles IntlDiscover last-minute flight deals from Barcelona-El Prat to Dulles Intl. Data last updated September 2, 2026 and is based on user searches.
Discover last-minute flight deals from Barcelona-El Prat to Dulles Intl. Data last updated September 2, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 8/29. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/310:40 pm -
1 stop22h 30m
Sat 9/1910:35 pm -
1 stop20h 55m
Deal found 8/29![TAP AIR PORTUGAL logo]()
$691
This Kiwi.com deal was found by Cheapflights users on 8/29. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/811:25 am -
1 stop33h 45m
Sat 10/248:40 pm -
2 stops31h 30m
Deal found 8/29![Multiple Airlines logo]()
$688
This lol.travel deal was found by Cheapflights users on 8/28. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1112:15 pm -
2 stops14h 59m
Thu 9/243:45 pm -
1 stop10h 15m
Deal found 8/28![Air Canada logo]()
$684
This Trip.com deal was found by Cheapflights users on 9/1. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/2111:25 am -
1 stop33h 45m
Sat 10/316:25 pm -
1 stop12h 20m
Deal found 9/1![TAP AIR PORTUGAL logo]()
$692
This TAP AIR PORTUGAL deal was found by Cheapflights users on 8/31. 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 TAP AIR PORTUGAL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/1311:25 am -
1 stop33h 45m
Sat 11/75:25 pm -
1 stop20h 55m
Deal found 8/31![TAP AIR PORTUGAL logo]()
$687
This Scandinavian Airlines deal was found by Cheapflights users on 8/30. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/1512:50 pm -
2 stops34h 10m
Fri 10/238:20 pm -
1 stop15h 50m
Deal found 8/30![Scandinavian Airlines logo]()
$683
This TAP AIR PORTUGAL deal was found by Cheapflights users on 8/31. 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 TAP AIR PORTUGAL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2011:25 am -
1 stop15h 10m
Wed 10/2811:30 pm -
1 stop19h 15m
Deal found 8/31![TAP AIR PORTUGAL logo]()
$680
This Justfly.com deal was found by Cheapflights users on 9/1. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/246:40 am -
1 stop12h 55m
Sun 11/16:50 pm -
Nonstop8h 10m
Deal found 9/1![Lufthansa logo]()
$693
One-way flights from Barcelona-El Prat to Dulles IntlSearch for one-way flight options from Barcelona-El Prat to Dulles Intl. Find affordable one-way fares based on user searches. Data last updated September 2, 2026.
Search for one-way flight options from Barcelona-El Prat to Dulles Intl. Find affordable one-way fares based on user searches. Data last updated September 2, 2026.
This Kiwi.com deal was found by Cheapflights users on 9/1. 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.
Wed 9/167:25 pm -
3 stops25h 45m
Deal found 9/1![Multiple Airlines logo]()
$487
This Kiwi.com deal was found by Cheapflights users on 9/1. 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.
Sat 11/288:30 pm -
3 stops44h 08m
Deal found 9/1![Multiple Airlines logo]()
$506
This Kiwi.com deal was found by Cheapflights users on 8/28. 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.
Mon 9/148:30 pm -
2 stops48h 40m
Deal found 8/28![Multiple Airlines logo]()
$507
This Kiwi.com deal was found by Cheapflights users on 9/1. 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 10/159:30 am -
2 stops39h 50m
Deal found 9/1![Multiple Airlines logo]()
$508
This Kiwi.com deal was found by Cheapflights users on 8/28. 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.
Fri 1/87:15 pm -
3 stops26h 00m
Deal found 8/28![Multiple Airlines logo]()
$510
This Kiwi.com deal was found by Cheapflights users on 8/31. 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 9/247:00 am -
2 stops19h 35m
Deal found 8/31![Multiple Airlines logo]()
$512
This Cheapflightsfares deal was found by Cheapflights users on 9/1. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/1110:40 pm -
1 stop22h 30m
Deal found 9/1![TAP AIR PORTUGAL logo]()
$514
This Kiwi.com deal was found by Cheapflights users on 8/31. 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.
Wed 9/236:50 am -
3 stops19h 45m
Deal found 8/31![Multiple Airlines logo]()
$515
This Kiwi.com deal was found by Cheapflights users on 8/30. 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 10/85:10 pm -
3 stops33h 25m
Deal found 8/30![Multiple Airlines logo]()
$518
Find flight deals from Barcelona-El Prat to Dulles Intl
Discover tips and strategies to find the most affordable flight options for your journey from Barcelona-El Prat (BCN) to Dulles Intl (IAD). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated September 2, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $680 (TAP AIR PORTUGAL) |
One-way from | $487 (Kiwi.com) |
Popular in | July |
Cheapest in | February |
Average price | $835 |
Good round-trip deal | $735 or less |
Good one-way deal | $891 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Barcelona-El Prat 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 7,457,451 searches. Data last updated September 2, 2026.
Use the filters below to find and compare flights from Barcelona-El Prat Airport to Washington, D.C. Dulles Intl Airport that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
BarcelonaWashington, D.C.
BCN Barcelona-El Prat - IAD Washington, D.C. Dulles Intl
BCNIAD
Barcelona-El Prat
Thu 1/14
11:50 am-12:38 am
2 stops18h 48m
Washington, D.C. Dulles Intl
Mon 1/18
12:35 pm-8:20 am
1 stop13h 45m
$684
BarcelonaWashington, D.C.
BCN Barcelona-El Prat - IAD Washington, D.C. Dulles Intl
BCNIAD
Barcelona-El Prat
Fri 10/23
6:20 am-3:35 pm
1 stop15h 15m
Washington, D.C. Dulles Intl
Fri 11/6
3:04 pm-11:10 am
2 stops14h 06m
$704
BarcelonaWashington, D.C.
BCN Barcelona-El Prat - IAD Washington, D.C. Dulles Intl
BCNIAD
Barcelona-El Prat
Thu 10/15
9:20 am-3:35 pm
1 stop12h 15m
Washington, D.C. Dulles Intl
Fri 11/13
12:35 pm-9:00 am
2 stops14h 25m
$704
BarcelonaWashington, D.C.
BCN Barcelona-El Prat - IAD Washington, D.C. Dulles Intl
BCNIAD
Barcelona-El Prat
Tue 10/20
9:20 am-3:35 pm
1 stop12h 15m
Washington, D.C. Dulles Intl
Wed 10/28
10:30 pm-5:00 pm
1 stop13h 30m
$706
BarcelonaWashington, D.C.
BCN Barcelona-El Prat - IAD Washington, D.C. Dulles Intl
BCNIAD
Barcelona-El Prat
Thu 9/17
6:20 am-3:35 pm
1 stop15h 15m
Washington, D.C. Dulles Intl
Sat 10/3
6:26 pm-5:10 pm
2 stops16h 44m
$706
BarcelonaWashington, D.C.
BCN Barcelona-El Prat - IAD Washington, D.C. Dulles Intl
BCNIAD
Barcelona-El Prat
Tue 10/13
6:20 am-3:35 pm
1 stop15h 15m
Washington, D.C. Dulles Intl
Sat 11/7
6:32 pm-5:00 pm
2 stops16h 28m
$708
BarcelonaWashington, D.C.
BCN Barcelona-El Prat - IAD Washington, D.C. Dulles Intl
BCNIAD
Barcelona-El Prat
Fri 10/9
9:40 am-4:45 pm
1 stop13h 05m
Washington, D.C. Dulles Intl
Sun 10/11
6:35 pm-8:20 am
Nonstop7h 45m
$712
BarcelonaWashington, D.C.
BCN Barcelona-El Prat - IAD Washington, D.C. Dulles Intl
BCNIAD
Barcelona-El Prat
Tue 12/1
6:45 am-2:45 pm
1 stop14h 00m
Washington, D.C. Dulles Intl
Wed 12/2
10:30 pm-11:45 pm
1 stop19h 15m
$716
BarcelonaWashington, D.C.
BCN Barcelona-El Prat - IAD Washington, D.C. Dulles Intl
BCNIAD
Barcelona-El Prat
Wed 10/21
11:00 am-12:42 am
1 stop19h 42m
Washington, D.C. Dulles Intl
Wed 11/4
12:30 pm-10:25 am
2 stops15h 55m
$721
BarcelonaWashington, D.C.
BCN Barcelona-El Prat - IAD Washington, D.C. Dulles Intl
BCNIAD
Barcelona-El Prat
Mon 10/19
6:40 am-1:35 pm
1 stop12h 55m
Washington, D.C. Dulles Intl
Sat 10/31
7:50 pm-9:00 am
Nonstop8h 10m
$723
Showing 1-10 of 21 resultsSorted by cheapest first
Compare providers for flights from Barcelona-El Prat to Dulles Intl
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Barcelona-El Prat to Dulles Intl in September.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*2 stars |
- Most accurate provider: When it comes to deals on Barcelona-El Prat Airport-Washington, D.C. Dulles Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Barcelona-El Prat Airport-Washington, D.C. Dulles Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Barcelona-El Prat Airport-Washington, D.C. Dulles Intl Airport flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Barcelona-El Prat Airport-Washington, D.C. Dulles Intl Airport flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Barcelona-El Prat Airport-Washington, D.C. Dulles Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Barcelona-El Prat to Dulles Intl
Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Barcelona-El Prat with our price prediction graph.
BCN-IAD
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 Barcelona-El Prat Airport to Washington, D.C. Dulles Intl Airport
Prices
Delays
How far ahead should I book a flight from Barcelona-El Prat Airport to Washington, D.C. Dulles Intl Airport?
The price you pay for your flight from Barcelona-El Prat Airport to Washington, D.C. Dulles Intl Airport may vary depending on when you book. For the best chance of a lower fare, look to book 17 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
What is the cheapest month to book a flight from Barcelona-El Prat Airport to Washington, D.C. Dulles Intl Airport?
Currently, February is the cheapest month in which you can book a flight from Barcelona-El Prat Airport to Washington, D.C. Dulles Intl Airport (average of $608). Flying from Barcelona-El Prat Airport to Washington, D.C. Dulles Intl Airport in July is currently the most expensive (average of $928). 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 BCN to IAD?
Find hourly flight availability from Barcelona-El Prat 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 September 2, 2026.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Barcelona-El Prat Airport to Washington, D.C. Dulles Intl Airport as you normally would.
How often are flights from Barcelona to Washington, D.C. delayed?
About 17% of weekly flights between Barcelona and Washington, D.C. have experienced delays in the past year, with the average delay time being 198 minutes.
What is the most punctual flight time for Barcelona to Washington, D.C. flights?
Historically, flights departing in the morning 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 Tuesday has historically faced a higher average of delays compared to other days of the week.
Which airline has the best punctuality record on Barcelona to Washington, D.C. flights?
Over the last year, United Airlines have had the lowest number of delays on this route, with just 17% of flights being delayed.
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 September 2, 2026.
Read reviews from past customers who have flown United Airlines,TAP AIR PORTUGAL, andLufthansa from Barcelona-El Prat Airport to Washington, D.C. Dulles Intl Airport. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Crew
8.1
Comfort
7.3
Entertainment
7.1
Boarding
7.7
Overall
7.4
Food
6.7
Reviews
1 / 20
10.0
ExcellentDane,Jan 2026
TYS - IAD
Crew
8.1
Comfort
7.3
Entertainment
7.1
Boarding
7.7
Overall
7.4
Food
6.7
Reviews
1 / 20
10.0
ExcellentDane,Jan 2026
TYS - IAD
Crew
8.1
Comfort
7.3
Entertainment
7.1
Boarding
7.7
Overall
7.4
Food
6.7
Reviews
1 / 20
10.0
ExcellentDane,Jan 2026
TYS - IAD
Crew
8.1
Comfort
7.3
Entertainment
7.1
Boarding
7.7
Overall
7.4
Food
6.7
Reviews
1 / 20
10.0
ExcellentDane,Jan 2026
TYS - IAD
Related info for your journey
Find useful and relevant information for your journey from Barcelona-El Prat to Dulles Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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 locationsAlexandria
Owings Mills
Arlington
Tysons
Lanham
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Herndon
Rockville
Chantilly
Hyattsville
Fredericksburg
Woodbridge
Falls Church
Sterling
Hanover
Laurel
Oxon Hill
Clinton
Hunt Valley
Silver Spring
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Top 3 airlines flying from Barcelona-El Prat to Dulles Intl
Discover the top 3 airlines that operate flights from Barcelona-El Prat 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 7,457,451 searches. Data last updated September 2, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$534 | Average$653 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$607 | Average$906 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$653 | Average$878 | FlexibilityNo cancel fee | On-time69% |