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Cheap flights from Washington, D.C. to Buenos Aires from $253

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 3/24. 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.
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
$608Avianca
Tue, May 5 - Tue, May 19
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
$631Avianca
Wed, Apr 29 - Wed, May 6
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
$633Avianca
Tue, May 5 - Tue, May 19
LATAM Airlines Logo
1:19 pm - 10:30 am
IAD
-
AEP
20h 11m
2 stops
LATAM Airlines Logo
3:45 pm - 12:39 pm
AEP
-
IAD
21h 54m
2 stops
$637LATAM Airlines
Mon, Mar 16 - Tue, Mar 24
LATAM Airlines Logo
3:00 pm - 4:00 pm
DCA
-
AEP
24h 00m
2 stops
LATAM Airlines Logo
5:05 pm - 2:01 pm
AEP
-
DCA
21h 56m
2 stops
$637LATAM Airlines
Sun, Apr 19 - Mon, Apr 27
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
$641Avianca
Wed, May 6 - Mon, May 11
LATAM Airlines Logo
11:52 am - 7:40 am
BWI
-
AEP
18h 48m
2 stops
LATAM Airlines Logo
8:05 pm - 9:37 am
AEP
-
BWI
38h 32m
2 stops
$647LATAM Airlines
Tue, Apr 7 - Tue, Apr 14
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
$654Avianca
Mon, May 4 - Fri, May 8
Avianca Logo
3:35 pm - 5:40 am
IAD
-
AEP
13h 05m
1 stop
Avianca Logo
7:00 am - 5:20 am
AEP
-
IAD
23h 20m
1 stop
$656Avianca
Sun, Mar 22 - Tue, Mar 31
Multiple Airlines Logo
10:19 am - 6:40 pm
BWI
-
AEP
31h 21m
3 stops
Multiple Airlines Logo
5:45 am - 6:45 pm
AEP
-
BWI
38h 00m
3 stops
$697Multiple Airlines
Wed, Mar 18 - Wed, Mar 25

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
Apr 19
DCA3:00 pmWashington, D.C. Reagan-National
24h 00m
2 stops
AEP4:00 pmBuenos Aires Jorge Newbery
Apr 27
AEP5:05 pmBuenos Aires Jorge Newbery
21h 56m
2 stops
DCA2:01 pmWashington, D.C. Reagan-National
$637
LATAM Airlines
Apr 7
BWI11:52 amBaltimore/Washington
18h 48m
2 stops
AEP7:40 amBuenos Aires Jorge Newbery
Apr 14
AEP8:05 pmBuenos Aires Jorge Newbery
38h 32m
2 stops
BWI9:37 amBaltimore/Washington
$647
LATAM Airlines
Mar 25
DCA1:45 pmWashington, D.C. Reagan-National
19h 45m
2 stops
AEP10:30 amBuenos Aires Jorge Newbery
Apr 2
AEP3:45 pmBuenos Aires Jorge Newbery
26h 15m
2 stops
DCA5:00 pmWashington, D.C. Reagan-National
$660

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
May 5
IAD6:50 amWashington, D.C. Dulles Intl
21h 50m
1 stop
AEP5:40 amBuenos Aires Jorge Newbery
May 19
AEP7:00 amBuenos Aires Jorge Newbery
20h 45m
2 stops
IAD2:45 amWashington, D.C. Dulles Intl
$608
Avianca
Apr 29
IAD6:50 amWashington, D.C. Dulles Intl
21h 50m
1 stop
AEP5:40 amBuenos Aires Jorge Newbery
May 6
AEP7:00 amBuenos Aires Jorge Newbery
23h 20m
1 stop
IAD5:20 amWashington, D.C. Dulles Intl
$631
Avianca
May 5
IAD6:50 amWashington, D.C. Dulles Intl
21h 50m
1 stop
AEP5:40 amBuenos Aires Jorge Newbery
May 19
AEP7:00 amBuenos Aires Jorge Newbery
23h 20m
1 stop
IAD5:20 amWashington, D.C. Dulles Intl
$633

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 February 6, 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

Washington, D.C.Buenos Aires

IAD - AEP

IADAEP

Washington, D.C. Dulles Intl

Tue 5/5

6:50 am-5:40 am

1 stop21h 50m

Buenos Aires Jorge Newbery

Tue 5/19

7:00 am-2:45 am

2 stops20h 45m

$608

Washington, D.C.Buenos Aires

IAD - AEP

IADAEP

Washington, D.C. Dulles Intl

Wed 4/29

6:50 am-5:40 am

1 stop21h 50m

Buenos Aires Jorge Newbery

Wed 5/6

7:00 am-5:20 am

1 stop23h 20m

$631

Washington, D.C.Buenos Aires

IAD - AEP

IADAEP

Washington, D.C. Dulles Intl

Tue 5/5

6:50 am-5:40 am

1 stop21h 50m

Buenos Aires Jorge Newbery

Tue 5/19

7:00 am-5:20 am

1 stop23h 20m

$633

Washington, D.C.Buenos Aires

IAD - AEP

IADAEP

Washington, D.C. Dulles Intl

Mon 3/16

1:19 pm-10:30 am

2 stops20h 11m

Buenos Aires Jorge Newbery

Tue 3/24

3:45 pm-12:39 pm

2 stops21h 54m

$637

Washington, D.C.Buenos Aires

DCA - AEP

DCAAEP

Washington, D.C. Reagan-National

Sun 4/19

3:00 pm-4:00 pm

2 stops24h 00m

Buenos Aires Jorge Newbery

Mon 4/27

5:05 pm-2:01 pm

2 stops21h 56m

$637

Washington, D.C.Buenos Aires

IAD - AEP

IADAEP

Washington, D.C. Dulles Intl

Wed 5/6

6:50 am-5:40 am

1 stop21h 50m

Buenos Aires Jorge Newbery

Mon 5/11

7:00 am-5:20 am

1 stop23h 20m

$641

BaltimoreBuenos Aires

BWI - AEP

BWIAEP

Baltimore/Washington

Tue 4/7

11:52 am-7:40 am

2 stops18h 48m

Buenos Aires Jorge Newbery

Tue 4/14

8:05 pm-9:37 am

2 stops38h 32m

$647

Washington, D.C.Buenos Aires

IAD - AEP

IADAEP

Washington, D.C. Dulles Intl

Mon 5/4

6:50 am-5:40 am

1 stop21h 50m

Buenos Aires Jorge Newbery

Fri 5/8

7:00 am-5:20 am

1 stop23h 20m

$654

Washington, D.C.Buenos Aires

IAD - AEP

IADAEP

Washington, D.C. Dulles Intl

Sun 3/22

3:35 pm-5:40 am

1 stop13h 05m

Buenos Aires Jorge Newbery

Tue 3/31

7:00 am-5:20 am

1 stop23h 20m

$656

BaltimoreBuenos Aires

BWI - AEP

BWIAEP

Baltimore/Washington

Wed 3/18

10:19 am-6:40 pm

3 stops31h 21m

Buenos Aires Jorge Newbery

Wed 3/25

5:45 am-6:45 pm

3 stops38h 00m

$697

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 22% 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

  • 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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