$390+ Cheap flights from Buenos Aires (BUE) to Washington, D.C. (WAS)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/2. Fares are subject to change and may not be available on all flights or dates of travel.
BUE — WAS
Oct 16 — Oct 231
Round-trip
1 adult, Economy
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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
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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Buenos Aires to Washington, D.C.
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Cheapest flights from Buenos Aires to Washington, D.C.Explore the most affordable flight options available from Buenos Aires to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 16, 2026.
Explore the most affordable flight options available from Buenos Aires to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 16, 2026.
This American Airlines deal was found by Cheapflights users on 9/15. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1811:59 pm -
1 stop16h 56m
Thu 11/261:06 pm -
1 stop16h 24m
Deal found 9/15![American Airlines logo]()
$698
This American Airlines deal was found by Cheapflights users on 9/15. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1811:59 pm -
1 stop20h 33m
Thu 11/266:00 am -
1 stop23h 30m
Deal found 9/15![American Airlines logo]()
$698
This American Airlines deal was found by Cheapflights users on 9/16. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/1610:30 pm -
2 stops26h 28m
Sat 11/147:00 am -
2 stops22h 20m
Deal found 9/16![American Airlines logo]()
$702
This Avianca deal was found by Cheapflights users on 9/14. 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 Avianca is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/154:50 pm -
1 stop13h 40m
Mon 3/153:30 pm -
1 stop13h 35m
Deal found 9/14![Avianca logo]()
$705
This Avianca deal was found by Cheapflights users on 9/14. 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 Avianca is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/294:50 pm -
1 stop13h 40m
Mon 11/25:50 am -
1 stop16h 40m
Deal found 9/14![Avianca logo]()
$715
This American Airlines deal was found by Cheapflights users on 9/14. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/189:30 pm -
1 stop19h 25m
Wed 12/21:36 pm -
1 stop15h 49m
Deal found 9/14![American Airlines logo]()
$718
This American Airlines deal was found by Cheapflights users on 9/14. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1810:30 pm -
1 stop18h 35m
Wed 12/24:00 pm -
1 stop16h 15m
Deal found 9/14![American Airlines logo]()
$718
This American Airlines deal was found by Cheapflights users on 9/14. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/1510:10 am -
2 stops15h 49m
Mon 3/155:58 pm -
1 stop13h 12m
Deal found 9/14![American Airlines logo]()
$722
This American Airlines deal was found by Cheapflights users on 9/12. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/710:10 am -
1 stop15h 03m
Wed 1/135:03 pm -
2 stops15h 12m
Deal found 9/12![American Airlines logo]()
$722
This American Airlines deal was found by Cheapflights users on 9/14. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/1510:30 pm -
1 stop19h 18m
Mon 3/154:46 pm -
2 stops16h 59m
Deal found 9/14![American Airlines logo]()
$722
This Avianca deal was found by Cheapflights users on 9/12. 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 Avianca is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/64:50 pm -
1 stop13h 40m
Fri 11/135:50 am -
1 stop16h 40m
Deal found 9/12![Avianca logo]()
$724
This Avianca deal was found by Cheapflights users on 9/12. 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 Avianca is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/274:50 pm -
1 stop13h 40m
Tue 11/35:50 am -
1 stop16h 40m
Deal found 9/12![Avianca logo]()
$725
Best flights from Buenos Aires to Washington, D.C.Discover carefully curated flight deals from Buenos Aires to Washington, D.C. that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 16, 2026.
Discover carefully curated flight deals from Buenos Aires to Washington, D.C. that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 16, 2026.
This Delta deal was found by Cheapflights users on 9/16. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/188:05 pm -
2 stops17h 28m
Wed 12/26:32 pm -
1 stop13h 08m
Deal found 9/16![Delta logo]()
$726
This Copa Airlines deal was found by Cheapflights users on 9/12. 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 Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/12:36 pm -
1 stop14h 41m
Wed 3/103:46 pm -
1 stop29h 37m
Deal found 9/12![Copa Airlines logo]()
$727
This United Airlines deal was found by Cheapflights users on 9/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/1610:05 pm -
1 stop15h 41m
Mon 1/112:50 pm -
1 stop16h 30m
Deal found 9/14![United Airlines logo]()
$739
This Avianca deal was found by Cheapflights users on 9/15. 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 Avianca is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/307:05 am -
2 stops20h 30m
Fri 11/65:50 am -
1 stop21h 50m
Deal found 9/15![Avianca logo]()
$860
This LATAM Airlines deal was found by Cheapflights users on 9/13. 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 LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/73:45 pm -
2 stops18h 25m
Fri 10/238:50 pm -
2 stops19h 10m
Deal found 9/13![LATAM Airlines logo]()
$905
This Mytrip deal was found by Cheapflights users on 9/12. 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 10/285:30 am -
3 stops25h 00m
Sat 11/72:30 pm -
3 stops29h 30m
Deal found 9/12![Multiple Airlines logo]()
$1,138
This Delta deal was found by Cheapflights users on 9/15. 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 3/111:35 pm -
1 stop17h 03m
Wed 3/102:55 pm -
1 stop16h 55m
Deal found 9/15![Delta logo]()
$730
This United Airlines deal was found by Cheapflights users on 9/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/1611:55 pm -
1 stop18h 09m
Fri 1/84:35 pm -
1 stop14h 45m
Deal found 9/14![United Airlines logo]()
$739
This Delta deal was found by Cheapflights users on 9/16. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/189:30 pm -
1 stop13h 44m
Wed 12/24:05 pm -
2 stops15h 45m
Deal found 9/16![Delta logo]()
$730
This United Airlines deal was found by Cheapflights users on 9/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/1410:05 pm -
1 stop20h 12m
Mon 1/114:15 pm -
1 stop15h 05m
Deal found 9/14![United Airlines logo]()
$739
This Copa Airlines deal was found by Cheapflights users on 9/13. 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 Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/711:07 pm -
2 stops30h 08m
Thu 11/121:16 am -
1 stop23h 54m
Deal found 9/13![Copa Airlines logo]()
$844
This eDestinos deal was found by Cheapflights users on 9/15. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/17:05 am -
2 stops20h 30m
Wed 3/105:50 am -
1 stop21h 50m
Deal found 9/15![Avianca logo]()
$864
This Delta deal was found by Cheapflights users on 9/15. 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 3/111:35 pm -
1 stop20h 51m
Wed 3/104:00 pm -
2 stops15h 50m
Deal found 9/15![Delta logo]()
$730
This SmartFares deal was found by Cheapflights users on 9/11. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/232:17 am -
1 stop13h 58m
Sat 10/314:49 pm -
1 stop34h 09m
Deal found 9/11![Copa Airlines logo]()
$868
This PocketFare deal was found by Cheapflights users on 9/16. 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 PocketFare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/307:05 am -
1 stop23h 25m
Tue 11/105:50 am -
1 stop21h 50m
Deal found 9/16![Avianca logo]()
$875
This Delta deal was found by Cheapflights users on 9/15. 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.
Wed 11/188:05 pm -
1 stop17h 47m
Thu 11/265:35 pm -
1 stop15h 20m
Deal found 9/15![Delta logo]()
$730
This CheapOair deal was found by Cheapflights users on 9/15. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/169:30 pm -
1 stop21h 54m
Tue 2/2310:00 am -
1 stop19h 35m
Deal found 9/15![LATAM Airlines logo]()
$1,021
This United Airlines deal was found by Cheapflights users on 9/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/1410:05 pm -
1 stop15h 21m
Sat 1/95:15 pm -
1 stop36h 05m
Deal found 9/14![United Airlines logo]()
$903
This Delta deal was found by Cheapflights users on 9/12. 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 11/249:30 pm -
1 stop15h 59m
Wed 12/24:05 pm -
1 stop15h 35m
Deal found 9/12![Delta logo]()
$751
This LATAM Airlines deal was found by Cheapflights users on 9/13. 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 LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/68:05 pm -
2 stops16h 21m
Fri 10/238:50 pm -
2 stops19h 10m
Deal found 9/13![LATAM Airlines logo]()
$1,086
This United Airlines deal was found by Cheapflights users on 9/16. 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.
Wed 9/239:00 pm -
1 stop20h 27m
Thu 10/13:04 pm -
1 stop15h 56m
Deal found 9/16![United Airlines logo]()
$1,051
This Delta deal was found by Cheapflights users on 9/15. 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 11/169:30 pm -
1 stop20h 29m
Mon 2/151:00 pm -
1 stop16h 35m
Deal found 9/15![Delta logo]()
$877
This Delta deal was found by Cheapflights users on 9/15. 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 11/239:30 pm -
1 stop20h 29m
Thu 2/187:00 am -
1 stop22h 35m
Deal found 9/15![Delta logo]()
$877
This LATAM Airlines deal was found by Cheapflights users on 9/16. 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 LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/3012:55 pm -
2 stops24h 43m
Tue 11/104:05 pm -
2 stops27h 25m
Deal found 9/16![LATAM Airlines logo]()
$1,349
This United Airlines deal was found by Cheapflights users on 9/15. 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.
Thu 10/19:00 pm -
1 stop15h 53m
Thu 10/156:00 am -
1 stop25h 00m
Deal found 9/15![United Airlines logo]()
$1,119
This Delta deal was found by Cheapflights users on 9/15. 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 12/149:30 pm -
1 stop13h 45m
Wed 1/131:45 pm -
1 stop17h 55m
Deal found 9/15![Delta logo]()
$903
This United Airlines deal was found by Cheapflights users on 9/16. 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 9/249:00 pm -
1 stop15h 56m
Thu 10/83:04 pm -
1 stop15h 56m
Deal found 9/16![United Airlines logo]()
$1,175
This Delta deal was found by Cheapflights users on 9/15. 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.
Tue 12/1511:35 pm -
1 stop16h 27m
Sat 1/96:30 pm -
1 stop14h 25m
Deal found 9/15![Delta logo]()
$903
This Delta deal was found by Cheapflights users on 9/13. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/68:10 pm -
1 stop20h 28m
Sun 10/184:45 pm -
1 stop16h 00m
Deal found 9/13![Delta logo]()
$957
This Delta deal was found by Cheapflights users on 9/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/209:30 pm -
1 stop17h 29m
Thu 12/242:00 pm -
1 stop17h 50m
Deal found 9/14![Delta logo]()
$984
Last-minute flights from Buenos Aires to Washington, D.C.Discover last-minute flight deals from Buenos Aires to Washington, D.C.. Data last updated September 16, 2026 and is based on user searches.
Discover last-minute flight deals from Buenos Aires to Washington, D.C.. Data last updated September 16, 2026 and is based on user searches.
This SmartFares deal was found by Cheapflights users on 9/16. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/257:10 am -
1 stop32h 05m
Sat 10/33:35 pm -
1 stop13h 05m
Deal found 9/16![Avianca logo]()
$732
This Justfly.com deal was found by Cheapflights users on 9/14. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/257:10 am -
1 stop32h 05m
Mon 10/53:35 pm -
1 stop13h 05m
Deal found 9/14![Avianca logo]()
$751
This Avianca deal was found by Cheapflights users on 9/14. 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 Avianca is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/64:50 pm -
1 stop13h 30m
Wed 10/215:35 pm -
2 stops21h 05m
Deal found 9/14![Avianca logo]()
$726
This Avianca deal was found by Cheapflights users on 9/12. 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 Avianca is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/64:50 pm -
1 stop13h 30m
Tue 10/136:50 am -
1 stop16h 35m
Deal found 9/12![Avianca logo]()
$744
This Avianca deal was found by Cheapflights users on 9/14. 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 Avianca is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/77:00 am -
1 stop32h 15m
Tue 10/203:35 pm -
1 stop13h 05m
Deal found 9/14![Avianca logo]()
$776
This Avianca deal was found by Cheapflights users on 9/11. 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 Avianca is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/107:10 am -
2 stops20h 35m
Sat 10/175:35 pm -
2 stops21h 05m
Deal found 9/11![Avianca logo]()
$727
This American Airlines deal was found by Cheapflights users on 9/16. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/1610:30 pm -
2 stops26h 28m
Sat 11/147:00 am -
2 stops22h 20m
Deal found 9/16![American Airlines logo]()
$702
This Avianca deal was found by Cheapflights users on 9/12. 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 Avianca is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/274:50 pm -
1 stop13h 40m
Tue 11/35:50 am -
1 stop16h 40m
Deal found 9/12![Avianca logo]()
$725
This SmartFares deal was found by Cheapflights users on 9/12. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/274:50 pm -
1 stop13h 40m
Wed 11/115:50 am -
1 stop31h 50m
Deal found 9/12![Avianca logo]()
$733
This SmartFares deal was found by Cheapflights users on 9/12. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2711:07 pm -
2 stops17h 10m
Wed 11/113:43 pm -
1 stop33h 27m
Deal found 9/12![Copa Airlines logo]()
$737
This SmartFares deal was found by Cheapflights users on 9/12. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/287:05 am -
1 stop32h 05m
Thu 11/122:30 pm -
1 stop13h 10m
Deal found 9/12![Avianca logo]()
$768
This Avianca deal was found by Cheapflights users on 9/14. 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 Avianca is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/294:50 pm -
1 stop13h 40m
Mon 11/25:50 am -
1 stop16h 40m
Deal found 9/14![Avianca logo]()
$715
One-way flights from Buenos Aires to Washington, D.C.Search for one-way flight options from Buenos Aires to Washington, D.C.. Find affordable one-way fares based on user searches. Data last updated September 16, 2026.
Search for one-way flight options from Buenos Aires to Washington, D.C.. Find affordable one-way fares based on user searches. Data last updated September 16, 2026.
This Kiwi.com deal was found by Cheapflights users on 9/14. 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 10/2910:10 pm -
2 stops18h 07m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/14![Multiple Airlines logo]()
$390
This Kiwi.com deal was found by Cheapflights users on 9/13. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/3110:10 pm -
2 stops42h 04m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/13![Multiple Airlines logo]()
$393
This Kiwi.com deal was found by Cheapflights users on 9/14. 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.
Mon 12/142:45 pm -
2 stops21h 27m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/14![Multiple Airlines logo]()
$393
This Kiwi.com deal was found by Cheapflights users on 9/14. 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.
Mon 11/23:15 pm -
3 stops44h 54m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/14![Multiple Airlines logo]()
$400
This Kiwi.com deal was found by Cheapflights users on 9/16. 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.
Thu 12/35:20 am -
2 stops34h 56m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/16![Multiple Airlines logo]()
$400
This Kiwi.com deal was found by Cheapflights users on 9/14. 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.
Sat 12/124:30 pm -
2 stops36h 34m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/14![Multiple Airlines logo]()
$403
This Kiwi.com deal was found by Cheapflights users on 9/13. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/55:50 am -
2 stops34h 24m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/13![Multiple Airlines logo]()
$405
This Kiwi.com deal was found by Cheapflights users on 9/14. 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 10/2910:10 pm -
2 stops32h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/14![Multiple Airlines logo]()
$406
This Kiwi.com deal was found by Cheapflights users on 9/14. 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.
Sat 11/1410:20 pm -
2 stops32h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/14![Multiple Airlines logo]()
$408
This Kiwi.com deal was found by Cheapflights users on 9/14. 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 10/2711:00 am -
3 stops48h 24m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/14![Multiple Airlines logo]()
$411
This Kiwi.com deal was found by Cheapflights users on 9/14. 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.
Wed 10/2810:10 pm -
2 stops32h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/14![Multiple Airlines logo]()
$416
This Kiwi.com deal was found by Cheapflights users on 9/14. 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 9/295:45 am -
3 stops46h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/14![Multiple Airlines logo]()
$417
Find flight deals from Buenos Aires to Washington, D.C.
Discover tips and strategies to find the most affordable flight options for your journey from Buenos Aires (BUE) to Washington, D.C. (WAS). 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 16, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $698 (American Airlines) |
One-way from | $390 (Kiwi.com) |
Popular in | February |
Cheapest in | March |
Average price | $675 |
Cheapflights Fare Finder
Customize your flight search to find flights from Buenos Aires to Washington, D.C. 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 16, 2026.
Use the filters below to find and compare flights from Buenos Aires to Washington, D.C. that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Buenos AiresBaltimore
AEP Buenos Aires Jorge Newbery - BWI Baltimore/Washington
AEPBWI
Buenos Aires Jorge Newbery
Mon 11/2
6:45 pm-10:09 am
3 stops41h 24m
Baltimore/Washington
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$390
Buenos AiresWashington, D.C.
AEP Buenos Aires Jorge Newbery - IAD Washington, D.C. Dulles Intl
AEPIAD
Buenos Aires Jorge Newbery
Sat 11/14
10:20 pm-4:30 am
2 stops32h 10m
Washington, D.C. Dulles Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$408
Buenos AiresBaltimore
AEP Buenos Aires Jorge Newbery - BWI Baltimore/Washington
AEPBWI
Buenos Aires Jorge Newbery
Thu 11/5
5:50 am-2:14 pm
2 stops34h 24m
Baltimore/Washington
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$428
Buenos AiresBaltimore
AEP Buenos Aires Jorge Newbery - BWI Baltimore/Washington
AEPBWI
Buenos Aires Jorge Newbery
Wed 12/2
10:10 pm-2:16 pm
2 stops42h 06m
Baltimore/Washington
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$439
Buenos AiresBaltimore
EZE Buenos Aires Ministro Pistarini - BWI Baltimore/Washington
EZEBWI
Buenos Aires Ministro Pistarini
Thu 11/5
3:40 am-10:09 am
2 stops32h 29m
Baltimore/Washington
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$455
Buenos AiresBaltimore
AEP Buenos Aires Jorge Newbery - BWI Baltimore/Washington
AEPBWI
Buenos Aires Jorge Newbery
Sat 10/3
7:30 pm-10:03 am
3 stops39h 33m
Baltimore/Washington
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$498
Buenos AiresBaltimore
EZE Buenos Aires Ministro Pistarini - BWI Baltimore/Washington
EZEBWI
Buenos Aires Ministro Pistarini
Sat 11/14
7:35 am-9:21 am
3 stops51h 46m
Baltimore/Washington
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$503
Buenos AiresWashington, D.C.
EZE Buenos Aires Ministro Pistarini - IAD Washington, D.C. Dulles Intl
EZEIAD
Buenos Aires Ministro Pistarini
Sat 11/7
11:07 pm-11:33 pm
2 stops26h 26m
Washington, D.C. Dulles Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$538
Buenos AiresWashington, D.C.
EZE Buenos Aires Ministro Pistarini - IAD Washington, D.C. Dulles Intl
EZEIAD
Buenos Aires Ministro Pistarini
Tue 10/27
11:07 pm-12:37 am
2 stops26h 30m
Washington, D.C. Dulles Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$538
Buenos AiresWashington, D.C.
EZE Buenos Aires Ministro Pistarini - IAD Washington, D.C. Dulles Intl
EZEIAD
Buenos Aires Ministro Pistarini
Thu 11/5
11:07 pm-3:15 am
2 stops30h 08m
Washington, D.C. Dulles Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$538
Showing 1-10 of 60 resultsSorted by cheapest first
Compare providers for flights from Buenos Aires to Washington, D.C.
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 Buenos Aires to Washington, D.C. in September.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Buenos Aires-Washington, D.C. flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Buenos Aires-Washington, D.C. flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Buenos Aires-Washington, D.C. flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Buenos Aires-Washington, D.C. 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 Buenos Aires-Washington, D.C. 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 Buenos Aires to Washington, D.C.
Have a flexible travel schedule? Discover the best time to fly to Washington, D.C. from Buenos Aires with our price prediction graph.
BUE-WAS
AEP-BWI
EZE-IAD
EZE-DCA
AEP-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 Buenos Aires to Washington, D.C.
BUE-WAS
AEP-BWI
EZE-IAD
EZE-DCA
AEP-IAD
What is the cheapest month to book a flight from Buenos Aires to Washington, D.C.?
Currently, September is the cheapest month in which you can book a flight from Buenos Aires to Washington, D.C. (average of $701). Flying from Buenos Aires to Washington, D.C. in February is currently the most expensive (average of $940). 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 much does it cost to fly round-trip from Buenos Aires to Washington, D.C.?
Airfare is typical for this route at the moment.
Buenos Aires to Washington, D.C. flights typically cost between $641 and $800 in November.The cheapest round-trip price found within the last 5 days was $698 on American Airlines (Nov 18-Nov 26).
How far ahead should I book a flight from Buenos Aires to Washington, D.C.?
Booking 87 days in advance of your planned departure date is, on average, the best time to get cheap flights from Buenos Aires to Washington, D.C.. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
Reviews of airlines servicing Washington, D.C.
Get insights into the airlines that provide service to Washington, D.C.. 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 Washington, D.C.. Reviews last updated September 16, 2026.
See what other customers who have flown with Delta,Copa Airlines, andUnited Airlines from Buenos Aires to Washington, D.C. have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Crew
8.5
Food
7.2
Boarding
8.1
Entertainment
7.8
Comfort
7.8
Overall
7.8
Reviews
1 / 20
4.0
OkayJennifer,Sep 2026
ORD - LGA
Crew
8.5
Food
7.2
Boarding
8.1
Entertainment
7.8
Comfort
7.8
Overall
7.8
Reviews
1 / 20
4.0
OkayJennifer,Sep 2026
ORD - LGA
Crew
8.5
Food
7.2
Boarding
8.1
Entertainment
7.8
Comfort
7.8
Overall
7.8
Reviews
1 / 20
4.0
OkayJennifer,Sep 2026
ORD - LGA
Crew
8.5
Food
7.2
Boarding
8.1
Entertainment
7.8
Comfort
7.8
Overall
7.8
Reviews
1 / 20
4.0
OkayJennifer,Sep 2026
ORD - LGA
Crew
8.5
Food
7.2
Boarding
8.1
Entertainment
7.8
Comfort
7.8
Overall
7.8
Reviews
1 / 20
4.0
OkayJennifer,Sep 2026
ORD - LGA
Crew
8.5
Food
7.2
Boarding
8.1
Entertainment
7.8
Comfort
7.8
Overall
7.8
Reviews
1 / 20
4.0
OkayJennifer,Sep 2026
ORD - LGA
Related info for your journey
Find useful and relevant information for your journey from Buenos Aires to Washington, D.C.. 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.?
Book flights to Washington, D.C. if you plan to visit one of these locationsAlexandria
Arlington
Owings Mills
Lanham
Tysons
Woodbridge
Reston
Herndon
Hyattsville
Rockville
Fredericksburg
Falls Church
Hanover
Laurel
Springfield
Oxon Hill
Clinton
Hunt Valley
Silver Spring
Largo
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Buenos Aires and Washington, D.C. flights
Browse other Buenos Aires and Washington, D.C. flight options. Last updated on September 16, 2026.
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Browse through other flights departing from Buenos Aires. Flights are based on user searches made on Cheapflights and were last updated on September 16, 2026.
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Other flights to Washington, D.C.
Explore flights to Washington, D.C. departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on September 16, 2026.
Top 5 airlines flying from Buenos Aires to Washington, D.C.
Discover the top 5 airlines that operate flights from Buenos Aires to Washington, D.C.. 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 16, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$232 | Average$695 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$315 | Average$943 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$378 | Average$604 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$610 | Average$746 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$673 | Average$931 | FlexibilityNo cancel fee | On-time71% |