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Cheap flights from Washington, D.C. to Buenos Aires from $271

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 11/16. 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
3:35 pm - 4:00 pmIAD-AEP
22h 25m2 stops
LATAM Airlines Logo
3:40 pm - 11:31 amAEP-IAD
21h 51m2 stops
$640LATAM Airlines
Find Deal
Mon, Nov 17 - Mon, Nov 24
LATAM Airlines Logo
7:30 pm - 4:00 pmDCA-AEP
19h 30m2 stops
LATAM Airlines Logo
3:40 pm - 2:06 pmAEP-DCA
23h 26m2 stops
$640LATAM Airlines
Find Deal
Tue, Mar 24 - Tue, Mar 31
Avianca Logo
5:45 am - 5:40 amIAD-AEP
22h 55m2 stops
Avianca Logo
7:00 am - 2:45 amAEP-IAD
20h 45m2 stops
$646Avianca
Find Deal
Tue, Apr 21 - Wed, Apr 29
Avianca Logo
5:45 am - 5:40 amIAD-AEP
21h 55m1 stop
Avianca Logo
7:00 am - 4:25 amAEP-IAD
23h 25m1 stop
$647Avianca
Find Deal
Sun, Nov 16 - Sun, Nov 23
Avianca Logo
5:45 am - 5:40 amIAD-AEP
21h 55m1 stop
Avianca Logo
7:00 am - 3:10 amAEP-IAD
22h 10m2 stops
$657Avianca
Find Deal
Mon, Dec 1 - Wed, Dec 3
Avianca Logo
5:30 am - 5:40 amIAD-AEP
23h 10m2 stops
Avianca Logo
7:00 am - 4:20 amAEP-IAD
22h 20m2 stops
$664Avianca
Find Deal
Tue, Mar 24 - Tue, Mar 31
Avianca Logo
5:45 am - 5:40 amIAD-AEP
21h 55m1 stop
Avianca Logo
7:00 am - 3:10 amAEP-IAD
22h 10m2 stops
$665Avianca
Find Deal
Sun, Nov 16 - Sun, Nov 23
LATAM Airlines Logo
5:25 pm - 4:05 pmIAD-AEP
21h 40m2 stops
LATAM Airlines Logo
8:10 pm - 12:09 amAEP-IAD
28h 59m2 stops
$670LATAM Airlines
Find Deal
Tue, Apr 28 - Sun, May 3
Avianca Logo
2:35 pm - 5:40 amIAD-AEP
13h 05m1 stop
Avianca Logo
7:00 am - 1:40 amAEP-IAD
20h 40m2 stops
$675Avianca
Find Deal
Sun, Nov 16 - Sun, Nov 23
Multiple Airlines Logo
4:00 am - 5:00 amIAD-AEP
24h 00m3 stops
Multiple Airlines Logo
7:00 am - 2:45 amAEP-IAD
20h 45m2 stops
$750Multiple Airlines
Find Deal
Wed, Mar 25 - Wed, Apr 15

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
Apr 21
IAD5:45 amWashington, D.C. Dulles Intl
22h 55m
2 stops
AEP5:40 amBuenos Aires Jorge Newbery
Apr 29
AEP7:00 amBuenos Aires Jorge Newbery
20h 45m
2 stops
IAD2:45 amWashington, D.C. Dulles Intl
$646
Find similar
Avianca
Nov 16
IAD5:45 amWashington, D.C. Dulles Intl
21h 55m
1 stop
AEP5:40 amBuenos Aires Jorge Newbery
Nov 23
AEP7:00 amBuenos Aires Jorge Newbery
23h 25m
1 stop
IAD4:25 amWashington, D.C. Dulles Intl
$647
Find similar
Avianca
Nov 9
IAD5:45 amWashington, D.C. Dulles Intl
21h 55m
1 stop
AEP5:40 amBuenos Aires Jorge Newbery
Nov 11
AEP7:00 amBuenos Aires Jorge Newbery
23h 25m
1 stop
IAD4:25 amWashington, D.C. Dulles Intl
$655
Find similar

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
Nov 17
IAD3:35 pmWashington, D.C. Dulles Intl
22h 25m
2 stops
AEP4:00 pmBuenos Aires Jorge Newbery
Nov 24
AEP3:40 pmBuenos Aires Jorge Newbery
21h 51m
2 stops
IAD11:31 amWashington, D.C. Dulles Intl
$640
Find similar
LATAM Airlines
Apr 28
IAD5:25 pmWashington, D.C. Dulles Intl
21h 40m
2 stops
AEP4:05 pmBuenos Aires Jorge Newbery
May 3
AEP8:10 pmBuenos Aires Jorge Newbery
28h 59m
2 stops
IAD12:09 amWashington, D.C. Dulles Intl
$670
Find similar
LATAM Airlines
Jan 24
IAD5:59 pmWashington, D.C. Dulles Intl
22h 41m
2 stops
AEP6:40 pmBuenos Aires Jorge Newbery
Feb 8
AEP10:35 amBuenos Aires Jorge Newbery
24h 41m
2 stops
IAD9:16 amWashington, D.C. Dulles Intl
$697
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 November 6, 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

IAD - AEP

IADAEP

Washington, D.C. Dulles Intl

Mon 11/17

3:35 pm-4:00 pm

2 stops22h 25m

Buenos Aires Jorge Newbery

Mon 11/24

3:40 pm-11:31 am

2 stops21h 51m

$640

Washington, D.C.Buenos Aires

DCA - AEP

DCAAEP

Washington, D.C. Reagan-National

Tue 3/24

7:30 pm-4:00 pm

2 stops19h 30m

Buenos Aires Jorge Newbery

Tue 3/31

3:40 pm-2:06 pm

2 stops23h 26m

$640

Washington, D.C.Buenos Aires

IAD - AEP

IADAEP

Washington, D.C. Dulles Intl

Tue 4/21

5:45 am-5:40 am

2 stops22h 55m

Buenos Aires Jorge Newbery

Wed 4/29

7:00 am-2:45 am

2 stops20h 45m

$646

Washington, D.C.Buenos Aires

IAD - AEP

IADAEP

Washington, D.C. Dulles Intl

Sun 11/16

5:45 am-5:40 am

1 stop21h 55m

Buenos Aires Jorge Newbery

Sun 11/23

7:00 am-4:25 am

1 stop23h 25m

$647

Washington, D.C.Buenos Aires

IAD - AEP

IADAEP

Washington, D.C. Dulles Intl

Mon 12/1

5:45 am-5:40 am

1 stop21h 55m

Buenos Aires Jorge Newbery

Wed 12/3

7:00 am-3:10 am

2 stops22h 10m

$657

Washington, D.C.Buenos Aires

IAD - AEP

IADAEP

Washington, D.C. Dulles Intl

Tue 3/24

5:30 am-5:40 am

2 stops23h 10m

Buenos Aires Jorge Newbery

Tue 3/31

7:00 am-4:20 am

2 stops22h 20m

$664

Washington, D.C.Buenos Aires

IAD - AEP

IADAEP

Washington, D.C. Dulles Intl

Sun 11/16

5:45 am-5:40 am

1 stop21h 55m

Buenos Aires Jorge Newbery

Sun 11/23

7:00 am-3:10 am

2 stops22h 10m

$665

Washington, D.C.Buenos Aires

IAD - AEP

IADAEP

Washington, D.C. Dulles Intl

Tue 4/28

5:25 pm-4:05 pm

2 stops21h 40m

Buenos Aires Jorge Newbery

Sun 5/3

8:10 pm-12:09 am

2 stops28h 59m

$670

Washington, D.C.Buenos Aires

IAD - AEP

IADAEP

Washington, D.C. Dulles Intl

Sun 11/16

2:35 pm-5:40 am

1 stop13h 05m

Buenos Aires Jorge Newbery

Sun 11/23

7:00 am-1:40 am

2 stops20h 40m

$675

Washington, D.C.Buenos Aires

IAD - AEP

IADAEP

Washington, D.C. Dulles Intl

Wed 3/25

4:00 am-5:00 am

3 stops24h 00m

Buenos Aires Jorge Newbery

Wed 4/15

7:00 am-2:45 am

2 stops20h 45m

$750

Flights are sorted by cheapest round-trip flights 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

Direct flights

None
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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