Latest deals
Insights
When to book
FAQs
Price Alerts

Cheap flights from Washington, D.C. to Buenos Aires from $275

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 11/26. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

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

Cheap round-trip flights

Avianca Logo
4:00 am - 5:40 amIAD-AEP
24h 40m2 stops
Avianca Logo
7:00 am - 4:25 amAEP-IAD
23h 25m1 stop
$635Avianca
Find Deal
Thu, Oct 30 - Thu, Nov 6
Avianca Logo
4:00 am - 5:40 amIAD-AEP
24h 40m2 stops
Avianca Logo
7:00 am - 1:40 amAEP-IAD
20h 40m2 stops
$638Avianca
Find Deal
Thu, Oct 30 - Thu, Nov 6
LATAM Airlines Logo
12:27 pm - 4:00 pmIAD-AEP
26h 33m2 stops
LATAM Airlines Logo
8:25 pm - 11:31 amAEP-IAD
17h 06m2 stops
$639LATAM Airlines
Find Deal
Thu, Oct 30 - Wed, Nov 12
LATAM Airlines Logo
2:55 pm - 9:40 amDCA-AEP
17h 45m2 stops
LATAM Airlines Logo
11:45 am - 10:06 amAEP-DCA
23h 21m2 stops
$639LATAM Airlines
Find Deal
Wed, Oct 1 - Thu, Oct 23
LATAM Airlines Logo
3:33 pm - 4:00 pmIAD-AEP
23h 27m2 stops
LATAM Airlines Logo
8:25 pm - 11:57 amAEP-IAD
17h 32m2 stops
$643LATAM Airlines
Find Deal
Thu, Oct 30 - Thu, Nov 6
LATAM Airlines Logo
6:22 pm - 4:00 pmBWI-AEP
20h 38m2 stops
LATAM Airlines Logo
5:15 pm - 12:36 pmAEP-BWI
21h 21m2 stops
$645LATAM Airlines
Find Deal
Thu, Oct 30 - Thu, Nov 6
Avianca Logo
5:45 am - 5:40 amIAD-AEP
21h 55m1 stop
Avianca Logo
7:00 am - 4:25 amAEP-IAD
23h 25m1 stop
$655Avianca
Find Deal
Fri, Nov 7 - Sun, Nov 16
Avianca Logo
7:00 am - 5:40 amIAD-AEP
21h 40m1 stop
Avianca Logo
7:00 am - 2:40 amAEP-IAD
20h 40m2 stops
$656Avianca
Find Deal
Mon, Oct 20 - Tue, Oct 28
Avianca Logo
3:00 am - 5:40 amIAD-AEP
24h 40m2 stops
Avianca Logo
7:00 am - 1:40 amAEP-IAD
20h 40m2 stops
$658Avianca
Find Deal
Mon, Nov 17 - Thu, Nov 20
Logo
2:35 pm - 5:40 amIAD-AEP
13h 05m1 stop
Logo
7:36 pm - 1:15 pmAEP-IAD
19h 39m2 stops
$716
Find Deal
Mon, Nov 24 - Thu, Nov 27

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
Oct 30
IAD4:00 amWashington, D.C. Dulles Intl
24h 40m
2 stops
AEP5:40 amBuenos Aires Jorge Newbery
Nov 6
AEP7:00 amBuenos Aires Jorge Newbery
23h 25m
1 stop
IAD4:25 amWashington, D.C. Dulles Intl
$635
Find similar
Avianca
Oct 30
IAD4:00 amWashington, D.C. Dulles Intl
24h 40m
2 stops
AEP5:40 amBuenos Aires Jorge Newbery
Nov 6
AEP7:00 amBuenos Aires Jorge Newbery
20h 40m
2 stops
IAD1:40 amWashington, D.C. Dulles Intl
$638
Find similar
Avianca
Nov 7
IAD5:45 amWashington, D.C. Dulles Intl
21h 55m
1 stop
AEP5:40 amBuenos Aires Jorge Newbery
Nov 16
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
Oct 1
DCA2:55 pmWashington, D.C. Reagan-National
17h 45m
2 stops
AEP9:40 amBuenos Aires Jorge Newbery
Oct 23
AEP11:45 amBuenos Aires Jorge Newbery
23h 21m
2 stops
DCA10:06 amWashington, D.C. Reagan-National
$639
Find similar
LATAM Airlines
Oct 30
IAD3:33 pmWashington, D.C. Dulles Intl
23h 27m
2 stops
AEP4:00 pmBuenos Aires Jorge Newbery
Nov 6
AEP8:25 pmBuenos Aires Jorge Newbery
17h 32m
2 stops
IAD11:57 amWashington, D.C. Dulles Intl
$643
Find similar
LATAM Airlines
Oct 30
BWI6:22 pmBaltimore/Washington
20h 38m
2 stops
AEP4:00 pmBuenos Aires Jorge Newbery
Nov 6
AEP5:15 pmBuenos Aires Jorge Newbery
21h 21m
2 stops
BWI12:36 pmBaltimore/Washington
$645
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 September 15, 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

Thu 10/30

4:00 am-5:40 am

2 stops24h 40m

Buenos Aires Jorge Newbery

Thu 11/6

7:00 am-4:25 am

1 stop23h 25m

$635

Washington, D.C.Buenos Aires

IAD - AEP

IADAEP

Washington, D.C. Dulles Intl

Thu 10/30

4:00 am-5:40 am

2 stops24h 40m

Buenos Aires Jorge Newbery

Thu 11/6

7:00 am-1:40 am

2 stops20h 40m

$638

Washington, D.C.Buenos Aires

IAD - AEP

IADAEP

Washington, D.C. Dulles Intl

Thu 10/30

12:27 pm-4:00 pm

2 stops26h 33m

Buenos Aires Jorge Newbery

Wed 11/12

8:25 pm-11:31 am

2 stops17h 06m

$639

Washington, D.C.Buenos Aires

DCA - AEP

DCAAEP

Washington, D.C. Reagan-National

Wed 10/1

2:55 pm-9:40 am

2 stops17h 45m

Buenos Aires Jorge Newbery

Thu 10/23

11:45 am-10:06 am

2 stops23h 21m

$639

Washington, D.C.Buenos Aires

IAD - AEP

IADAEP

Washington, D.C. Dulles Intl

Thu 10/30

3:33 pm-4:00 pm

2 stops23h 27m

Buenos Aires Jorge Newbery

Thu 11/6

8:25 pm-11:57 am

2 stops17h 32m

$643

BaltimoreBuenos Aires

BWI - AEP

BWIAEP

Baltimore/Washington

Thu 10/30

6:22 pm-4:00 pm

2 stops20h 38m

Buenos Aires Jorge Newbery

Thu 11/6

5:15 pm-12:36 pm

2 stops21h 21m

$645

Washington, D.C.Buenos Aires

IAD - AEP

IADAEP

Washington, D.C. Dulles Intl

Fri 11/7

5:45 am-5:40 am

1 stop21h 55m

Buenos Aires Jorge Newbery

Sun 11/16

7:00 am-4:25 am

1 stop23h 25m

$655

Washington, D.C.Buenos Aires

IAD - AEP

IADAEP

Washington, D.C. Dulles Intl

Mon 10/20

7:00 am-5:40 am

1 stop21h 40m

Buenos Aires Jorge Newbery

Tue 10/28

7:00 am-2:40 am

2 stops20h 40m

$656

Washington, D.C.Buenos Aires

IAD - AEP

IADAEP

Washington, D.C. Dulles Intl

Mon 11/17

3:00 am-5:40 am

2 stops24h 40m

Buenos Aires Jorge Newbery

Thu 11/20

7:00 am-1:40 am

2 stops20h 40m

$658

Washington, D.C.Buenos Aires

IAD - AEP

IADAEP

Washington, D.C. Dulles Intl

Mon 11/24

2:35 pm-5:40 am

1 stop13h 05m

Buenos Aires Jorge Newbery

Thu 11/27

7:36 pm-1:15 pm

2 stops19h 39m

$716

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to Buenos Aires from

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 3% 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.
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.

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

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Wed 10/15
Wed 10/22
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Buenos Aires

Popular cities in Argentina

Popular flights according to clicks in the last 7 days on momondo
Flights to Buenos Aires Ministro Pistarini Airportfrom $532