Washington (IAD) to Buenos Aires (EZE) flight deal in economy from $312

CMCopa Airlines

One Way•Economy

IAD

Washington Dulles International Airport

Washington, United States

EZE

Ministro Pistarini International Airport

Buenos Aires, Argentina

$426 USD

-27%$312 USD

Verified 13 days ago

July 2026

Today

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293012345$4066$4067$4068$3359$33510$33511$33512$44613$1,05614$1,05615$33516$45817$41518$43819$47120$41521$38322$31223$43324$47125$67726$67727$64128$47129$54530$1,05631$1,0561$1,0562$812

Good Availability

53% of dates checked are available within 10% of the lowest price

Wednesday, July 22nd, 2026

Outbound Flights

20h 18m·1 stop

$312 USD

IADJul 22 02:22

→

PTYJul 22 06:13

CM 403Boeing 737

8h 21m layover

PTYJul 22 14:34

→

EZEJul 22 23:40

CM 755Boeing 737MAX 9 Passenger

39h 2m·1 stop

$365 USD

IADJul 22 06:25

→

PTYJul 22 10:22

CM 101Boeing 737

26h 53m layover·Overnight

PTYJul 23 13:15

→

EZEJul 23 22:27

CM 219Boeing 737

16h 15m·1 stop

$383 USD

IADJul 22 06:25

→

PTYJul 22 10:22

CM 101Boeing 737

4h 12m layover

PTYJul 22 14:34

→

EZEJul 22 23:40

CM 755Boeing 737MAX 9 Passenger

15h 2m·1 stop

$408 USD

IADJul 22 06:25

→

PTYJul 22 10:22

CM 101Boeing 737

2h 53m layover

PTYJul 22 13:15

→

EZEJul 22 22:27

CM 219Boeing 737MAX 9 Passenger

14h 25m·1 stop

$433 USD

IADJul 22 16:26

→

PTYJul 22 20:35

CM 444Boeing 737MAX 9 Passenger

2h 11m layover

PTYJul 22 22:46

→

EZEJul 23 07:51

CM 367Boeing 737

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