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Cheap flights from Washington, D.C. to Buenos Aires from $278

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington, D.C. to Buenos Aires departing on 2/15. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Cheap round-trip flights

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LATAM Airlines Logo
2:35 pm - 10:30 am
DCA
-
AEP
17h 55m2 stops
LATAM Airlines Logo
6:20 pm - 11:21 am
AEP
-
DCA
18h 01m2 stops
$689LATAM Airlines
jue., ene. 8 - mar., mar. 10
Multiple Airlines Logo
3:42 pm - 2:40 pm
IAD
-
AEP
20h 58m2 stops
Multiple Airlines Logo
7:00 am - 4:25 am
AEP
-
IAD
23h 25m1 stop
$708Multiple Airlines
jue., ene. 22 - jue., ene. 29
LATAM Airlines Logo
6:00 am - 9:30 pm
DCA
-
AEP
37h 30m2 stops
LATAM Airlines Logo
2:55 pm - 2:08 pm
AEP
-
DCA
24h 13m2 stops
$719LATAM Airlines
vie., mar. 6 - sáb., mar. 14
Avianca Logo
2:35 pm - 5:40 am
IAD
-
AEP
13h 05m1 stop
Avianca Logo
7:00 am - 2:40 am
AEP
-
IAD
20h 40m2 stops
$728Avianca
jue., ene. 8 - mar., mar. 10
LATAM Airlines Logo
2:35 pm - 10:30 am
DCA
-
AEP
17h 55m2 stops
LATAM Airlines Logo
6:20 pm - 11:17 am
AEP
-
DCA
18h 57m2 stops
$735LATAM Airlines
jue., ene. 15 - dom., ene. 25
LATAM Airlines Logo
12:23 pm - 7:40 pm
IAD
-
AEP
29h 17m2 stops
LATAM Airlines Logo
9:05 pm - 12:24 am
AEP
-
IAD
29h 19m3 stops
$736LATAM Airlines
dom., ene. 11 - mar., ene. 27
LATAM Airlines Logo
2:30 pm - 10:30 am
DCA
-
AEP
18h 00m2 stops
LATAM Airlines Logo
6:20 pm - 11:21 am
AEP
-
DCA
19h 01m2 stops
$741LATAM Airlines
vie., ene. 23 - jue., feb. 12
LATAM Airlines Logo
7:49 pm - 10:30 am
IAD
-
AEP
36h 41m2 stops
LATAM Airlines Logo
9:05 pm - 12:24 am
AEP
-
IAD
29h 19m3 stops
$742LATAM Airlines
dom., ene. 11 - mar., ene. 27
Multiple Airlines Logo
7:51 pm - 9:30 pm
IAD
-
AEP
47h 39m2 stops
Multiple Airlines Logo
7:00 am - 5:25 am
AEP
-
IAD
23h 25m1 stop
$761Multiple Airlines
vie., mar. 6 - sáb., mar. 14
Avianca Logo
2:35 pm - 5:40 am
IAD
-
AEP
13h 05m1 stop
Avianca Logo
7:00 am - 2:40 am
AEP
-
IAD
20h 40m2 stops
$767Avianca
jue., ene. 8 - mar., mar. 10

LATAM Airlines flights from Washington, D.C. to Buenos Aires Jorge Newbery Airport

Our best LATAM Airlines deals on Washington, D.C. to Buenos Aires Jorge Newbery Airport flight tickets
LATAM Airlines
Jan 8
DCA2:35 pmWashington, D.C. Reagan-National
17h 55m
2 stops
AEP10:30 amBuenos Aires Jorge Newbery
Mar 10
AEP6:20 pmBuenos Aires Jorge Newbery
18h 01m
2 stops
DCA11:21 amWashington, D.C. Reagan-National
$689
Find similar
LATAM Airlines
Mar 6
DCA6:00 amWashington, D.C. Reagan-National
37h 30m
2 stops
AEP9:30 pmBuenos Aires Jorge Newbery
Mar 14
AEP2:55 pmBuenos Aires Jorge Newbery
24h 13m
2 stops
DCA2:08 pmWashington, D.C. Reagan-National
$719
Find similar
LATAM Airlines
Jan 15
DCA2:35 pmWashington, D.C. Reagan-National
17h 55m
2 stops
AEP10:30 amBuenos Aires Jorge Newbery
Jan 25
AEP6:20 pmBuenos Aires Jorge Newbery
18h 57m
2 stops
DCA11:17 amWashington, D.C. Reagan-National
$735
Find similar

Avianca flights from Washington, D.C. to Buenos Aires Jorge Newbery Airport

Our best Avianca deals on Washington, D.C. to Buenos Aires Jorge Newbery Airport flight tickets
Avianca
Jan 8
IAD2:35 pmWashington, D.C. Dulles Intl
13h 05m
1 stop
AEP5:40 amBuenos Aires Jorge Newbery
Mar 10
AEP7:00 amBuenos Aires Jorge Newbery
20h 40m
2 stops
IAD2:40 amWashington, D.C. Dulles Intl
$728
Find similar
Avianca
Jan 8
IAD2:35 pmWashington, D.C. Dulles Intl
13h 05m
1 stop
AEP5:40 amBuenos Aires Jorge Newbery
Mar 10
AEP7:00 amBuenos Aires Jorge Newbery
20h 40m
2 stops
IAD2:40 amWashington, D.C. Dulles Intl
$767
Find similar
Avianca
Mar 3
IAD2:35 pmWashington, D.C. Dulles Intl
13h 05m
1 stop
AEP5:40 amBuenos Aires Jorge Newbery
Mar 9
AEP7:00 amBuenos Aires Jorge Newbery
20h 40m
2 stops
IAD2:40 amWashington, D.C. Dulles Intl
$814
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Washington, D.C. to Buenos Aires Jorge Newbery Airport 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, momondo users made 832,500 searches. Data last updated diciembre 8, 2025.
Use the filters below to find and compare flights from Washington, D.C. to Buenos Aires Jorge Newbery Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Buenos Aires

DCA - AEP

DCAAEP

Washington, D.C. Reagan-National

jue. 1/8

2:35 pm-10:30 am

2 stops17h 55m

Buenos Aires Jorge Newbery

mar. 3/10

6:20 pm-11:21 am

2 stops18h 01m

$689

Washington, D.C.Buenos Aires

IAD - AEP

IADAEP

Washington, D.C. Dulles Intl

jue. 1/22

3:42 pm-2:40 pm

2 stops20h 58m

Buenos Aires Jorge Newbery

jue. 1/29

7:00 am-4:25 am

1 stop23h 25m

$708

Washington, D.C.Buenos Aires

DCA - AEP

DCAAEP

Washington, D.C. Reagan-National

vie. 3/6

6:00 am-9:30 pm

2 stops37h 30m

Buenos Aires Jorge Newbery

sáb. 3/14

2:55 pm-2:08 pm

2 stops24h 13m

$719

Washington, D.C.Buenos Aires

IAD - AEP

IADAEP

Washington, D.C. Dulles Intl

jue. 1/8

2:35 pm-5:40 am

1 stop13h 05m

Buenos Aires Jorge Newbery

mar. 3/10

7:00 am-2:40 am

2 stops20h 40m

$728

Washington, D.C.Buenos Aires

DCA - AEP

DCAAEP

Washington, D.C. Reagan-National

jue. 1/15

2:35 pm-10:30 am

2 stops17h 55m

Buenos Aires Jorge Newbery

dom. 1/25

6:20 pm-11:17 am

2 stops18h 57m

$735

Washington, D.C.Buenos Aires

IAD - AEP

IADAEP

Washington, D.C. Dulles Intl

dom. 1/11

12:23 pm-7:40 pm

2 stops29h 17m

Buenos Aires Jorge Newbery

mar. 1/27

9:05 pm-12:24 am

3 stops29h 19m

$736

Washington, D.C.Buenos Aires

DCA - AEP

DCAAEP

Washington, D.C. Reagan-National

vie. 1/23

2:30 pm-10:30 am

2 stops18h 00m

Buenos Aires Jorge Newbery

jue. 2/12

6:20 pm-11:21 am

2 stops19h 01m

$741

Washington, D.C.Buenos Aires

IAD - AEP

IADAEP

Washington, D.C. Dulles Intl

dom. 1/11

7:49 pm-10:30 am

2 stops36h 41m

Buenos Aires Jorge Newbery

mar. 1/27

9:05 pm-12:24 am

3 stops29h 19m

$742

Washington, D.C.Buenos Aires

IAD - AEP

IADAEP

Washington, D.C. Dulles Intl

vie. 3/6

7:51 pm-9:30 pm

2 stops47h 39m

Buenos Aires Jorge Newbery

sáb. 3/14

7:00 am-5:25 am

1 stop23h 25m

$761

Washington, D.C.Buenos Aires

IAD - AEP

IADAEP

Washington, D.C. Dulles Intl

jue. 1/8

2:35 pm-5:40 am

1 stop13h 05m

Buenos Aires Jorge Newbery

mar. 3/10

7:00 am-2:40 am

2 stops20h 40m

$767

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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How to get the cheapest flight ticket from Washington, D.C. to Buenos Aires Jorge Newbery Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest day to depart on your flight to Buenos Aires Jorge Newbery Airport?

The cheapest day to depart from Washington, D.C. to Buenos Aires Jorge Newbery Airport is on a Tuesday. Travelers who choose to depart for Buenos Aires Jorge Newbery Airport on a Tuesday will often find tickets for as low as $752. The most expensive day to fly to Buenos Aires Jorge Newbery Airport is Thursday, with ticket prices averaging around $1,421.

Can stopping save me money on Washington, D.C. to Buenos Aires Jorge Newbery Airport flights?

You could potentially save up to 12% on your flight if you consider stops on a Washington, D.C. to Buenos Aires Jorge Newbery Airport flight.

When to book flights from Washington, D.C. to Buenos Aires Jorge Newbery Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Washington, D.C. to Buenos Aires Jorge Newbery Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Washington, D.C. to Buenos Aires Jorge Newbery Airport (WAS to AEP) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Washington, D.C. to Buenos Aires Jorge Newbery Airport

Fastest flight time

13h 05m

Direct flights

None
The fastest flight from Washington, D.C. to Buenos Aires Jorge Newbery Airport takes 13h 05m
There are no direct flights from Washington, D.C. to Buenos Aires Jorge Newbery Airport. There are no popular flight routes from Washington, D.C. to Buenos Aires Jorge Newbery Airport.
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  • How far is Washington, D.C. to Buenos Aires Jorge Newbery by plane?

    Buenos Aires Jorge Newbery is 5210.2 mi away from Washington, D.C.. In terms of flight time, this usually takes a little over 13h 05m.

  • When did momondo last update prices for flights from Washington, D.C. to Buenos Aires Jorge Newbery Airport?

    Prices for flights from Washington, D.C. to Buenos Aires Jorge Newbery Airport refresh daily.

  • How old do you have to be to fly from Washington, D.C. to Buenos Aires Jorge Newbery Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Washington, D.C. to Buenos Aires Jorge Newbery Airport.

  • What documentation or ID do you need to fly to Buenos Aires Jorge Newbery Airport?

    The necessary travel and health documents for your Buenos Aires Jorge Newbery Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Why use momondo?

Why should I use momondo to find a flight deal from Washington, D.C. to Buenos Aires?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Washington, D.C. to Buenos Aires. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Washington, D.C. to Buenos Aires with flexible booking policies on momondo?

Flights from Washington, D.C. to Buenos Aires with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Washington, D.C. to Buenos Aires?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Washington, D.C. to Buenos Aires.

I’m not ready to book a flight from Washington, D.C. to Buenos Aires right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Buenos Aires, momondo offers a useful price alert feature which will track prices for flights to Buenos Aires from Washington, D.C. and alert you when they change.

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