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Cheap flights from Washington, D.C. to Buenos Aires from $315

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 5/12. 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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Find the cheapest flights from Washington, D.C. to Buenos Aires

Cheap round-trip flights

Enter your travel dates to find the best prices.
LATAM Airlines Logo
1:32 pm - 2:50 pm
IAD
-
AEP
24h 18m
2 stops
LATAM Airlines Logo
5:35 pm - 2:02 pm
AEP
-
IAD
21h 27m
2 stops
$721LATAM Airlines
Tue, Jun 2 - Tue, Jun 9
LATAM Airlines Logo
6:24 pm - 2:50 pm
BWI
-
AEP
19h 26m
2 stops
LATAM Airlines Logo
3:45 pm - 10:47 am
AEP
-
BWI
20h 02m
2 stops
$721LATAM Airlines
Sat, Jun 20 - Tue, Jul 7
LATAM Airlines Logo
5:00 pm - 2:50 pm
DCA
-
AEP
20h 50m
2 stops
LATAM Airlines Logo
5:35 pm - 4:59 pm
AEP
-
DCA
24h 24m
2 stops
$721LATAM Airlines
Fri, Jun 19 - Thu, Jul 2
LATAM Airlines Logo
5:00 pm - 2:50 pm
DCA
-
AEP
20h 50m
2 stops
LATAM Airlines Logo
3:45 pm - 4:59 pm
AEP
-
DCA
26h 14m
2 stops
$722LATAM Airlines
Wed, Jun 17 - Wed, Jun 24
Avianca Logo
6:50 am - 5:40 am
IAD
-
AEP
21h 50m
1 stop
Avianca Logo
7:00 am - 2:45 am
AEP
-
IAD
20h 45m
2 stops
$738Avianca
Thu, May 28 - Thu, Jun 4
Avianca Logo
6:50 am - 5:40 am
IAD
-
AEP
21h 50m
1 stop
Avianca Logo
7:00 am - 5:20 am
AEP
-
IAD
23h 20m
1 stop
$739Avianca
Thu, May 28 - Thu, Jun 4
Avianca Logo
3:35 pm - 5:40 am
IAD
-
AEP
13h 05m
1 stop
Avianca Logo
7:00 am - 2:45 am
AEP
-
IAD
20h 45m
2 stops
$742Avianca
Sun, May 17 - Mon, Jun 1
LATAM Airlines Logo
2:55 pm - 2:50 pm
DCA
-
AEP
22h 55m
2 stops
LATAM Airlines Logo
8:05 pm - 1:56 pm
AEP
-
DCA
19h 51m
2 stops
$752LATAM Airlines
Wed, Oct 21 - Wed, Nov 4
Avianca Logo
6:50 am - 5:40 am
IAD
-
AEP
21h 50m
1 stop
Avianca Logo
7:00 am - 2:45 am
AEP
-
IAD
20h 45m
2 stops
$756Avianca
Tue, May 19 - Mon, May 25
Multiple Airlines Logo
6:59 am - 12:00 pm
DCA
-
AEP
28h 01m
3 stops
Multiple Airlines Logo
3:45 pm - 10:59 pm
AEP
-
DCA
32h 14m
2 stops
$808Multiple Airlines
Tue, Jul 7 - Wed, Aug 12

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

Our best Delta deals on Washington, D.C. to Buenos Aires Jorge Newbery Airport flight tickets
Delta
May 21
DCA12:00 pmWashington, D.C. Reagan-National
18h 40m
2 stops
AEP7:40 amBuenos Aires Jorge Newbery
May 25
AEP3:45 pmBuenos Aires Jorge Newbery
20h 15m
2 stops
DCA11:00 amWashington, D.C. Reagan-National
$1,066
Delta
May 11
DCA12:00 pmWashington, D.C. Reagan-National
18h 40m
2 stops
AEP7:40 amBuenos Aires Jorge Newbery
May 20
AEP8:05 pmBuenos Aires Jorge Newbery
17h 38m
2 stops
DCA12:43 pmWashington, D.C. Reagan-National
$3,228
Delta
May 19
DCA12:00 pmWashington, D.C. Reagan-National
18h 40m
2 stops
AEP7:40 amBuenos Aires Jorge Newbery
May 28
AEP6:20 pmBuenos Aires Jorge Newbery
17h 40m
2 stops
DCA11:00 amWashington, D.C. Reagan-National
$3,431

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
Jun 2
IAD1:32 pmWashington, D.C. Dulles Intl
24h 18m
2 stops
AEP2:50 pmBuenos Aires Jorge Newbery
Jun 9
AEP5:35 pmBuenos Aires Jorge Newbery
21h 27m
2 stops
IAD2:02 pmWashington, D.C. Dulles Intl
$721
LATAM Airlines
Jun 17
DCA5:00 pmWashington, D.C. Reagan-National
20h 50m
2 stops
AEP2:50 pmBuenos Aires Jorge Newbery
Jun 24
AEP3:45 pmBuenos Aires Jorge Newbery
26h 14m
2 stops
DCA4:59 pmWashington, D.C. Reagan-National
$722
LATAM Airlines
Oct 21
DCA2:55 pmWashington, D.C. Reagan-National
22h 55m
2 stops
AEP2:50 pmBuenos Aires Jorge Newbery
Nov 4
AEP8:05 pmBuenos Aires Jorge Newbery
19h 51m
2 stops
DCA1:56 pmWashington, D.C. Reagan-National
$752

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 May 7, 2026.
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

Cheapest round-trip

Washington, D.C.Buenos Aires

IAD - AEP

IADAEP

Washington, D.C. Dulles Intl

Tue 6/2

1:32 pm-2:50 pm

2 stops24h 18m

Buenos Aires Jorge Newbery

Tue 6/9

5:35 pm-2:02 pm

2 stops21h 27m

$721

BaltimoreBuenos Aires

BWI - AEP

BWIAEP

Baltimore/Washington

Sat 6/20

6:24 pm-2:50 pm

2 stops19h 26m

Buenos Aires Jorge Newbery

Tue 7/7

3:45 pm-10:47 am

2 stops20h 02m

$721

Washington, D.C.Buenos Aires

DCA - AEP

DCAAEP

Washington, D.C. Reagan-National

Fri 6/19

5:00 pm-2:50 pm

2 stops20h 50m

Buenos Aires Jorge Newbery

Thu 7/2

5:35 pm-4:59 pm

2 stops24h 24m

$721

Washington, D.C.Buenos Aires

DCA - AEP

DCAAEP

Washington, D.C. Reagan-National

Wed 6/17

5:00 pm-2:50 pm

2 stops20h 50m

Buenos Aires Jorge Newbery

Wed 6/24

3:45 pm-4:59 pm

2 stops26h 14m

$722

Washington, D.C.Buenos Aires

IAD - AEP

IADAEP

Washington, D.C. Dulles Intl

Thu 5/28

6:50 am-5:40 am

1 stop21h 50m

Buenos Aires Jorge Newbery

Thu 6/4

7:00 am-2:45 am

2 stops20h 45m

$738

Washington, D.C.Buenos Aires

IAD - AEP

IADAEP

Washington, D.C. Dulles Intl

Thu 5/28

6:50 am-5:40 am

1 stop21h 50m

Buenos Aires Jorge Newbery

Thu 6/4

7:00 am-5:20 am

1 stop23h 20m

$739
Quickest round-trip

Washington, D.C.Buenos Aires

IAD - AEP

IADAEP

Washington, D.C. Dulles Intl

Sun 5/17

3:35 pm-5:40 am

1 stop13h 05m

Buenos Aires Jorge Newbery

Mon 6/1

7:00 am-2:45 am

2 stops20h 45m

$742

Washington, D.C.Buenos Aires

DCA - AEP

DCAAEP

Washington, D.C. Reagan-National

Wed 10/21

2:55 pm-2:50 pm

2 stops22h 55m

Buenos Aires Jorge Newbery

Wed 11/4

8:05 pm-1:56 pm

2 stops19h 51m

$752

Washington, D.C.Buenos Aires

IAD - AEP

IADAEP

Washington, D.C. Dulles Intl

Tue 5/19

6:50 am-5:40 am

1 stop21h 50m

Buenos Aires Jorge Newbery

Mon 5/25

7:00 am-2:45 am

2 stops20h 45m

$756

Washington, D.C.Buenos Aires

DCA - AEP

DCAAEP

Washington, D.C. Reagan-National

Tue 7/7

6:59 am-12:00 pm

3 stops28h 01m

Buenos Aires Jorge Newbery

Wed 8/12

3:45 pm-10:59 pm

2 stops32h 14m

$808

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

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

You could potentially save up to 10% 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.
Search flight deals

Frequently asked questions about flying from Washington, D.C. to Buenos Aires Jorge Newbery Airport

  • 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.

An easier way to manage your Buenos Aires Jorge Newbery Airport trip

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