
Most accurate provider | eDreams 3 stars  | 
|---|---|
Most trusted provider | eDreams 3 stars  | 
Round-trip from | $637 (Priceline)  | 
One-way from | $275 (LATAM Airlines)  | 
Popular in | December | 
Cheapest in | August | 
Average price | $872 | 
Fly from
Fly to
Route
Depart
Return
Price
Washington, D.C.Buenos Aires
IAD - AEP
IADAEP
Washington, D.C. Dulles Intl
Tue 1/20
12:23 pm-10:30 am
2 stops20h 07m
Buenos Aires Jorge Newbery
Mon 2/2
10:35 am-11:43 am
2 stops27h 08m
Washington, D.C.Buenos Aires
IAD - EZE
IADEZE
Washington, D.C. Dulles Intl
Wed 1/21
12:23 pm-10:15 am
1 stop19h 52m
Buenos Aires Ministro Pistarini
Sun 2/1
4:05 am-12:24 am
2 stops22h 19m
Washington, D.C.Buenos Aires
IAD - EZE
IADEZE
Washington, D.C. Dulles Intl
Tue 1/20
6:03 am-7:20 am
1 stop23h 17m
Buenos Aires Ministro Pistarini
Tue 2/3
10:05 pm-4:14 pm
1 stop20h 09m
Washington, D.C.Buenos Aires
IAD - AEP
IADAEP
Washington, D.C. Dulles Intl
Tue 11/18
12:11 pm-10:30 am
2 stops20h 19m
Buenos Aires Jorge Newbery
Sat 11/22
3:40 pm-11:31 am
2 stops21h 51m
Washington, D.C.Buenos Aires
IAD - EZE
IADEZE
Washington, D.C. Dulles Intl
Thu 1/22
10:11 am-9:00 am
1 stop20h 49m
Buenos Aires Ministro Pistarini
Wed 2/4
10:25 pm-11:43 am
1 stop15h 18m
Washington, D.C.Buenos Aires
IAD - EZE
IADEZE
Washington, D.C. Dulles Intl
Sun 2/8
8:15 am-7:20 am
1 stop21h 05m
Buenos Aires Ministro Pistarini
Mon 2/23
10:05 pm-11:26 am
1 stop15h 21m
Washington, D.C.Buenos Aires
IAD - AEP
IADAEP
Washington, D.C. Dulles Intl
Mon 1/19
10:11 am-7:55 am
2 stops19h 44m
Buenos Aires Jorge Newbery
Mon 2/2
10:35 am-11:44 am
2 stops27h 09m
Washington, D.C.Buenos Aires
IAD - EZE
IADEZE
Washington, D.C. Dulles Intl
Fri 1/23
3:42 pm-2:55 pm
2 stops21h 13m
Buenos Aires Ministro Pistarini
Wed 2/4
8:00 am-12:24 am
2 stops18h 24m
Washington, D.C.Buenos Aires
IAD - EZE
IADEZE
Washington, D.C. Dulles Intl
Tue 12/2
12:45 pm-9:20 am
1 stop18h 35m
Buenos Aires Ministro Pistarini
Tue 12/9
11:55 pm-4:18 pm
1 stop18h 23m
Washington, D.C.Buenos Aires
IAD - EZE
IADEZE
Washington, D.C. Dulles Intl
Tue 1/20
12:40 pm-9:00 am
1 stop18h 20m
Buenos Aires Ministro Pistarini
Thu 2/5
8:00 am-12:24 am
2 stops18h 24m
| Provider | Price Accuracy | Trust Score* | 
|---|---|---|
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*1 star | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*2 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | 
The best time to book flights from Washington, D.C. to Buenos Aires is 50 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
Currently, March is the cheapest month in which you can book a flight from Washington, D.C. to Buenos Aires (average of $278). Flying from Washington, D.C. to Buenos Aires in February is currently the most expensive (average of $725). 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.
One of the essential ways to save on airfare from Washington, D.C. to Buenos Aires is to remain as flexible as possible. Flights that are in the afternoon tend to be the most expensive. A flight in the evening could potentially save you up to 21% on airfare.
Travelers seeking maximum savings on their Washington, D.C. to Buenos Aires flight should consider departing on Tuesday mornings when fares are most often at their lowest. Saturday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
Panama City (PTY) – chosen by Cheapflights users on 42% of 1-stop itineraries from Washington, D.C. to Buenos Aires on Cheapflights.
Mexico City (MEX) is the most affordable 1-stop option, with an average round-trip price of $782.
Flights via Bogotá (BOG) have the shortest average one-way travel time for 1-stop routes: 13h 15m.
Flights via Bogotá (BOG) offer the fastest connection on this route, with an average layover time of 1h 28m.
Crew
Comfort
Overall
Entertainment
Food
Boarding
Reviews
Jim,Nov 2025
AVL - ATL
Crew
Comfort
Overall
Entertainment
Food
Boarding
Reviews
Jim,Nov 2025
AVL - ATL
Crew
Comfort
Overall
Entertainment
Food
Boarding
Reviews
Jim,Nov 2025
AVL - ATL
Crew
Comfort
Overall
Entertainment
Food
Boarding
Reviews
Jim,Nov 2025
AVL - ATL
Crew
Comfort
Overall
Entertainment
Food
Boarding
Reviews
Jim,Nov 2025
AVL - ATL
Crew
Comfort
Overall
Entertainment
Food
Boarding
Reviews
Jim,Nov 2025
AVL - ATL
| Airline | Cheapest | Average | Flexibility | On-time | 
|---|---|---|---|---|
| Cheapest$506 | Average$687 | FlexibilityNo cancel fee | On-time81% | |
| Cheapest$600 | Average$814 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$609 | Average$1,035 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$617 | Average$825 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$629 | Average$857 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$639 | Average$1,013 | FlexibilityNo cancel fee | On-time71% |