$354+ Cheap flights from Dulles Intl (IAD) to Barcelona
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 10/1. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — BCN
Sep 17 — Sep 241
Round-trip
1 adult, Economy
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Find cheap flights from Dulles Intl to Barcelona 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 Washington, D.C. Dulles Intl to Barcelona are usually found in February or January, booked 63 days in advance, depart on a Monday or Sunday and return on a Saturday
Cheap flight deals from Dulles Intl to Barcelona
Cheapest
Best
Last-minute
One-way
Cheapest flights from Dulles Intl to BarcelonaExplore the most affordable flight options available from Dulles Intl to Barcelona. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 18, 2026.
Explore the most affordable flight options available from Dulles Intl to Barcelona. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 18, 2026.
This Mytrip deal was found by Cheapflights users on 8/14. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/510:35 pm -
2 stops17h 25m
Wed 10/146:35 pm -
2 stops32h 00m
Deal found 8/14![Multiple Airlines logo]()
$620
This Mytrip deal was found by Cheapflights users on 8/16. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/127:40 pm -
2 stops21h 05m
Mon 11/1612:30 pm -
2 stops36h 00m
Deal found 8/16![Multiple Airlines logo]()
$639
This Mytrip deal was found by Cheapflights users on 8/17. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/68:30 pm -
2 stops20h 30m
Tue 11/107:10 pm -
1 stop29h 55m
Deal found 8/17![Multiple Airlines logo]()
$641
This Mytrip deal was found by Cheapflights users on 8/14. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/47:40 pm -
2 stops21h 40m
Mon 11/96:50 pm -
3 stops29h 40m
Deal found 8/14![Multiple Airlines logo]()
$648
This Mytrip deal was found by Cheapflights users on 8/16. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/198:30 pm -
2 stops20h 20m
Thu 11/127:10 pm -
1 stop29h 55m
Deal found 8/16![Multiple Airlines logo]()
$651
This Mytrip deal was found by Cheapflights users on 8/13. 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.
Sun 11/87:40 pm -
2 stops17h 55m
Fri 11/206:05 pm -
1 stop27h 10m
Deal found 8/13![Multiple Airlines logo]()
$653
This Mytrip deal was found by Cheapflights users on 8/16. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/68:30 pm -
2 stops20h 30m
Tue 10/138:10 pm -
1 stop28h 50m
Deal found 8/16![Multiple Airlines logo]()
$660
This Kiwi.com deal was found by Cheapflights users on 8/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2011:12 am -
2 stops25h 33m
Thu 11/56:45 am -
1 stop14h 30m
Deal found 8/14![Multiple Airlines logo]()
$665
This Mytrip deal was found by Cheapflights users on 8/14. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/288:30 pm -
2 stops20h 10m
Mon 10/510:55 pm -
3 stops46h 15m
Deal found 8/14![Multiple Airlines logo]()
$845
This Kiwi.com deal was found by Cheapflights users on 8/15. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/295:15 pm -
1 stop23h 40m
Tue 10/611:55 am -
2 stops33h 35m
Deal found 8/15![Multiple Airlines logo]()
$975
This Mytrip deal was found by Cheapflights users on 8/16. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/179:45 am -
3 stops32h 10m
Mon 9/2110:55 pm -
3 stops46h 15m
Deal found 8/16![Multiple Airlines logo]()
$1,034
Best flights from Dulles Intl to BarcelonaDiscover carefully curated flight deals from Dulles Intl to Barcelona that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 18, 2026.
Discover carefully curated flight deals from Dulles Intl to Barcelona that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 18, 2026.
This Mytrip deal was found by Cheapflights users on 8/14. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/288:30 pm -
3 stops19h 30m
Mon 10/510:55 pm -
3 stops46h 15m
Deal found 8/14![Multiple Airlines logo]()
$892
This Delta deal was found by Cheapflights users on 8/15. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/96:20 pm -
2 stops16h 40m
Thu 11/196:00 am -
1 stop15h 45m
Deal found 8/15![Delta logo]()
$914
This Scandinavian Airlines deal was found by Cheapflights users on 8/13. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/308:20 pm -
1 stop15h 50m
Tue 10/66:45 pm -
2 stops28h 15m
Deal found 8/13![Scandinavian Airlines logo]()
$978
This United Airlines deal was found by Cheapflights users on 8/15. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/96:50 pm -
Nonstop8h 10m
Thu 11/1910:30 am -
Nonstop9h 30m
Deal found 8/15![United Airlines logo]()
$990
This TAP AIR PORTUGAL deal was found by Cheapflights users on 8/17. 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 TAP AIR PORTUGAL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/410:30 pm -
1 stop12h 45m
Mon 11/92:35 pm -
3 stops22h 45m
Deal found 8/17![TAP AIR PORTUGAL logo]()
$1,054
This Delta deal was found by Cheapflights users on 8/17. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/712:30 pm -
2 stops14h 30m
Sat 10/1710:05 am -
1 stop15h 30m
Deal found 8/17![Delta logo]()
$971
This Kiwi.com deal was found by Cheapflights users on 8/15. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/295:15 pm -
1 stop23h 40m
Tue 10/611:55 am -
2 stops33h 35m
Deal found 8/15![Multiple Airlines logo]()
$975
This United Airlines deal was found by Cheapflights users on 8/16. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/196:50 pm -
Nonstop8h 10m
Thu 12/1010:30 am -
Nonstop9h 30m
Deal found 8/16![United Airlines logo]()
$1,040
This TAP AIR PORTUGAL deal was found by Cheapflights users on 8/15. 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 TAP AIR PORTUGAL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/910:50 pm -
1 stop38h 35m
Tue 10/1311:25 am -
3 stops25h 54m
Deal found 8/15![TAP AIR PORTUGAL logo]()
$1,163
This United Airlines deal was found by Cheapflights users on 8/15. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/95:45 pm -
1 stop11h 50m
Sat 10/2411:15 am -
Nonstop8h 50m
Deal found 8/15![United Airlines logo]()
$1,098
This United Airlines deal was found by Cheapflights users on 8/13. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/246:50 pm -
Nonstop8h 10m
Fri 1/81:50 pm -
1 stop30h 45m
Deal found 8/13![United Airlines logo]()
$1,114
This Mytrip deal was found by Cheapflights users on 8/16. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/173:25 pm -
2 stops26h 30m
Mon 9/2110:55 pm -
2 stops22h 15m
Deal found 8/16![Multiple Airlines logo]()
$1,273
This United Airlines deal was found by Cheapflights users on 8/16. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/206:50 pm -
Nonstop8h 10m
Tue 12/110:30 am -
Nonstop9h 30m
Deal found 8/16![United Airlines logo]()
$1,340
This United Airlines deal was found by Cheapflights users on 8/17. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/83:45 pm -
1 stop10h 15m
Tue 10/1311:15 am -
Nonstop8h 50m
Deal found 8/17![United Airlines logo]()
$1,394
Last-minute flights from Dulles Intl to BarcelonaDiscover last-minute flight deals from Dulles Intl to Barcelona. Data last updated August 18, 2026 and is based on user searches.
Discover last-minute flight deals from Dulles Intl to Barcelona. Data last updated August 18, 2026 and is based on user searches.
This Justfly.com deal was found by Cheapflights users on 8/13. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/2510:35 pm -
1 stop20h 55m
Thu 9/33:00 pm -
1 stop11h 35m
Deal found 8/13![TAP AIR PORTUGAL logo]()
$707
This Trip.com deal was found by Cheapflights users on 8/15. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/318:30 pm -
2 stops21h 50m
Fri 9/411:25 am -
1 stop15h 10m
Deal found 8/15![Multiple Airlines logo]()
$710
This Mytrip deal was found by Cheapflights users on 8/16. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/179:45 am -
3 stops32h 10m
Mon 9/2110:55 pm -
3 stops46h 15m
Deal found 8/16![Multiple Airlines logo]()
$1,034
This Mytrip deal was found by Cheapflights users on 8/13. 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.
Sun 9/2010:35 pm -
2 stops17h 15m
Wed 10/712:20 pm -
2 stops32h 50m
Deal found 8/13![Multiple Airlines logo]()
$675
This Mytrip deal was found by Cheapflights users on 8/15. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/219:40 pm -
2 stops20h 55m
Tue 10/66:15 am -
2 stops35h 15m
Deal found 8/15![Multiple Airlines logo]()
$699
This Flightnetwork deal was found by Cheapflights users on 8/15. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/225:05 pm -
2 stops17h 10m
Tue 9/296:35 pm -
2 stops32h 00m
Deal found 8/15![Multiple Airlines logo]()
$692
This Mytrip deal was found by Cheapflights users on 8/17. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/231:15 pm -
2 stops26h 00m
Wed 9/306:30 am -
2 stops35h 00m
Deal found 8/17![Multiple Airlines logo]()
$713
This Mytrip deal was found by Cheapflights users on 8/13. 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.
Mon 9/288:30 pm -
2 stops22h 30m
Wed 10/710:40 pm -
2 stops26h 30m
Deal found 8/13![Multiple Airlines logo]()
$683
This Mytrip deal was found by Cheapflights users on 8/14. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/288:30 pm -
2 stops20h 10m
Mon 10/510:55 pm -
3 stops46h 15m
Deal found 8/14![Multiple Airlines logo]()
$845
This Mytrip deal was found by Cheapflights users on 8/15. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/291:15 pm -
2 stops29h 20m
Tue 10/66:15 am -
2 stops35h 15m
Deal found 8/15![Multiple Airlines logo]()
$700
This Kiwi.com deal was found by Cheapflights users on 8/15. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/295:15 pm -
1 stop23h 40m
Tue 10/611:55 am -
2 stops33h 35m
Deal found 8/15![Multiple Airlines logo]()
$975
One-way flights from Dulles Intl to BarcelonaSearch for one-way flight options from Dulles Intl to Barcelona. Find affordable one-way fares based on user searches. Data last updated August 18, 2026.
Search for one-way flight options from Dulles Intl to Barcelona. Find affordable one-way fares based on user searches. Data last updated August 18, 2026.
This Kiwi.com deal was found by Cheapflights users on 8/17. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/111:12 am -
2 stops24h 33m
Deal found 8/17![Multiple Airlines logo]()
$354
This Kiwi.com deal was found by Cheapflights users on 8/15. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/3011:30 pm -
2 stops33h 20m
Deal found 8/15![Multiple Airlines logo]()
$356
This Mytrip deal was found by Cheapflights users on 8/16. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/138:30 pm -
2 stops22h 45m
Deal found 8/16![Multiple Airlines logo]()
$357
This Kiwi.com deal was found by Cheapflights users on 8/16. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/1111:20 pm -
3 stops26h 05m
Deal found 8/16![Multiple Airlines logo]()
$358
This Kiwi.com deal was found by Cheapflights users on 8/16. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/148:30 pm -
2 stops29h 55m
Deal found 8/16![Multiple Airlines logo]()
$364
This Kiwi.com deal was found by Cheapflights users on 8/16. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/1211:20 pm -
2 stops36h 50m
Deal found 8/16![Multiple Airlines logo]()
$365
This Kiwi.com deal was found by Cheapflights users on 8/17. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/2511:20 pm -
3 stops31h 10m
Deal found 8/17![Multiple Airlines logo]()
$367
This Kiwi.com deal was found by Cheapflights users on 8/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/1510:35 pm -
3 stops35h 10m
Deal found 8/14![Multiple Airlines logo]()
$368
This Booking.com deal was found by Cheapflights users on 8/13. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/268:30 pm -
2 stops14h 30m
Deal found 8/13![Multiple Airlines logo]()
$369
Find flight deals from Dulles Intl to Barcelona
Discover tips and strategies to find the most affordable flight options for your journey from Dulles Intl (IAD) to Barcelona (S37). 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 August 18, 2026.
Round-trip from | $620 (Mytrip) |
|---|---|
One-way from | $354 (Kiwi.com) |
Popular in | July |
Cheapest in | February |
Average price | $968 |
Cheapflights Fare Finder
Customize your flight search to find flights from Dulles Intl to Barcelona 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 August 18, 2026.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Barcelona that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Washington, D.C.Girona
IAD Washington, D.C. Dulles Intl - GRO Girona Costa Brava
IADGRO
Washington, D.C. Dulles Intl
Mon 9/28
8:30 pm-10:00 pm
3 stops19h 30m
Girona Costa Brava
Mon 10/5
10:55 pm-3:10 pm
3 stops46h 15m
$892
Washington, D.C.Barcelona
IAD Washington, D.C. Dulles Intl - BCN Barcelona-El Prat
IADBCN
Washington, D.C. Dulles Intl
Mon 11/9
6:20 pm-5:00 pm
2 stops16h 40m
Barcelona-El Prat
Thu 11/19
6:00 am-3:45 pm
1 stop15h 45m
$914
Washington, D.C.Barcelona
IAD Washington, D.C. Dulles Intl - BCN Barcelona-El Prat
IADBCN
Washington, D.C. Dulles Intl
Wed 10/7
12:30 pm-9:00 am
2 stops14h 30m
Barcelona-El Prat
Sat 10/17
10:05 am-7:35 pm
1 stop15h 30m
$971
Washington, D.C.Girona
IAD Washington, D.C. Dulles Intl - GRO Girona Costa Brava
IADGRO
Washington, D.C. Dulles Intl
Tue 9/29
5:15 pm-10:55 pm
1 stop23h 40m
Girona Costa Brava
Tue 10/6
11:55 am-3:30 pm
2 stops33h 35m
$975
Washington, D.C.Barcelona
IAD Washington, D.C. Dulles Intl - BCN Barcelona-El Prat
IADBCN
Washington, D.C. Dulles Intl
Wed 9/30
8:20 pm-6:10 pm
1 stop15h 50m
Barcelona-El Prat
Tue 10/6
6:45 pm-5:00 pm
2 stops28h 15m
$978
Quickest round-trip
Washington, D.C.Barcelona
IAD Washington, D.C. Dulles Intl - BCN Barcelona-El Prat
IADBCN
Washington, D.C. Dulles Intl
Mon 11/9
6:50 pm-9:00 am
Nonstop8h 10m
Barcelona-El Prat
Thu 11/19
10:30 am-2:00 pm
Nonstop9h 30m
$990
Washington, D.C.Barcelona
IAD Washington, D.C. Dulles Intl - BCN Barcelona-El Prat
IADBCN
Washington, D.C. Dulles Intl
Thu 11/19
6:50 pm-9:00 am
Nonstop8h 10m
Barcelona-El Prat
Thu 12/10
10:30 am-2:00 pm
Nonstop9h 30m
$1,040
Washington, D.C.Barcelona
IAD Washington, D.C. Dulles Intl - BCN Barcelona-El Prat
IADBCN
Washington, D.C. Dulles Intl
Wed 11/4
10:30 pm-5:15 pm
1 stop12h 45m
Barcelona-El Prat
Mon 11/9
2:35 pm-7:20 am
3 stops22h 45m
$1,054
Washington, D.C.Barcelona
IAD Washington, D.C. Dulles Intl - BCN Barcelona-El Prat
IADBCN
Washington, D.C. Dulles Intl
Fri 10/9
5:45 pm-11:35 am
1 stop11h 50m
Barcelona-El Prat
Sat 10/24
11:15 am-2:05 pm
Nonstop8h 50m
$1,098
Washington, D.C.Barcelona
IAD Washington, D.C. Dulles Intl - BCN Barcelona-El Prat
IADBCN
Washington, D.C. Dulles Intl
Thu 12/24
6:50 pm-9:00 am
Nonstop8h 10m
Barcelona-El Prat
Fri 1/8
1:50 pm-2:35 pm
1 stop30h 45m
$1,114
Showing 1-10 of 20 resultsSorted by cheapest first
Best time to book a flight from Dulles Intl to Barcelona
Have a flexible travel schedule? Discover the best time to fly to Barcelona from Dulles Intl with our price prediction graph.
IAD-S37
IAD-GRO
IAD-BCN
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 Barcelona
IAD-S37
IAD-GRO
IAD-BCN
What is the cheapest month to book a flight from Washington, D.C. Dulles Intl Airport to Barcelona?
Currently, February is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Barcelona (average of $588). Flying from Washington, D.C. Dulles Intl Airport to Barcelona in July is currently the most expensive (average of $1,193). 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 BCN?
Find hourly flight availability from Dulles Intl to Barcelona. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 18, 2026.
When flying from Washington, D.C. Dulles Intl Airport to Barcelona, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
Weekly flight availability from Washington, D.C. Dulles Intl Airport to Barcelona
Explore weekly flight availability from Dulles Intl to Barcelona. 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 August 18, 2026.
The most flights from IAD to S37 are scheduled on a Monday (3 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (3 on average).
How much does it cost to fly round-trip from Washington, D.C. Dulles Intl Airport to Barcelona?
Airfare is below average for this route at the moment.
Washington, D.C. Dulles Intl Airport to Barcelona flights typically cost between $712 and $1,223 in October.The cheapest round-trip price found within the last 5 days was $620 on Multiple Airlines (Oct 5-Oct 14).
How far ahead should I book a flight from Washington, D.C. Dulles Intl Airport to Barcelona?
The price you pay for your flight from Washington, D.C. Dulles Intl Airport to Barcelona may vary depending on when you book. For the best chance of a lower fare, look to book 62 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
Reviews of airlines servicing Barcelona
Get insights into the airlines that provide service to Barcelona. 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 Barcelona. Reviews last updated August 18, 2026.
Peruse reviews from past customers who have flown with Turkish Airlines,United Airlines, andTAP AIR PORTUGAL from Washington, D.C. Dulles Intl Airport to Barcelona to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Boarding
7.3
Food
7.5
Comfort
7.3
Entertainment
7.5
Crew
7.8
Overall
7.4
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
MIA - IST
Boarding
7.3
Food
7.5
Comfort
7.3
Entertainment
7.5
Crew
7.8
Overall
7.4
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
MIA - IST
Boarding
7.3
Food
7.5
Comfort
7.3
Entertainment
7.5
Crew
7.8
Overall
7.4
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
MIA - IST
Boarding
7.3
Food
7.5
Comfort
7.3
Entertainment
7.5
Crew
7.8
Overall
7.4
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
MIA - IST
Boarding
7.3
Food
7.5
Comfort
7.3
Entertainment
7.5
Crew
7.8
Overall
7.4
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
MIA - IST
Boarding
7.3
Food
7.5
Comfort
7.3
Entertainment
7.5
Crew
7.8
Overall
7.4
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
MIA - IST
Related info for your journey
Find useful and relevant information for your journey from Dulles Intl to Barcelona. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Dulles Intl and Barcelona flights
Browse other Dulles Intl and Barcelona flight options. Last updated on August 18, 2026.
Other flights from Dulles Intl
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Top 10 airlines flying from Dulles Intl to Barcelona
Discover the top 10 airlines that operate flights from Dulles Intl to Barcelona. 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 August 18, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$390 | Average$463 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$398 | Average$777 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$479 | Average$682 | FlexibilityNo cancel fee | On-time79% | |
| Cheapest$484 | Average$729 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$486 | Average$837 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$490 | Average$704 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$491 | Average$729 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$492 | Average$1,039 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$499 | Average$1,091 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$508 | Average$788 | FlexibilityNo cancel fee | On-time81% |