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Cheap flights from Washington, D.C. to Buenos Aires from $303

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 12/2. 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
1 adult, Economy, 0 bags

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
1:00 pm - 2:40 pm
BWI
-
AEP
23h 40m
2 stops
LATAM Airlines Logo
5:35 pm - 11:48 am
AEP
-
BWI
20h 13m
2 stops
$688LATAM Airlines
Wed, Jan 20 - Tue, Feb 2
LATAM Airlines Logo
7:00 am - 8:30 am
BWI
-
AEP
23h 30m
2 stops
LATAM Airlines Logo
2:55 pm - 9:16 am
AEP
-
BWI
20h 21m
2 stops
$718LATAM Airlines
Tue, Jan 19 - Tue, Feb 9
Delta Logo
10:05 am - 7:40 am
IAD
-
AEP
19h 35m
2 stops
Delta Logo
5:35 pm - 11:59 am
AEP
-
IAD
20h 24m
2 stops
$718Delta
Tue, Jan 19 - Tue, Feb 2
LATAM Airlines Logo
12:30 pm - 8:30 am
IAD
-
AEP
19h 00m
2 stops
LATAM Airlines Logo
8:05 pm - 11:30 am
AEP
-
IAD
16h 25m
2 stops
$722LATAM Airlines
Thu, Sep 3 - Wed, Sep 9
LATAM Airlines Logo
3:03 pm - 9:30 pm
IAD
-
AEP
29h 27m
2 stops
LATAM Airlines Logo
3:50 pm - 11:50 am
AEP
-
IAD
22h 00m
2 stops
$722LATAM Airlines
Sat, Oct 31 - Thu, Nov 5
LATAM Airlines Logo
8:28 am - 8:30 am
IAD
-
AEP
23h 02m
2 stops
LATAM Airlines Logo
5:35 pm - 11:30 am
AEP
-
IAD
18h 55m
2 stops
$722LATAM Airlines
Thu, Sep 3 - Mon, Sep 7
LATAM Airlines Logo
12:30 pm - 8:30 am
IAD
-
AEP
19h 00m
2 stops
LATAM Airlines Logo
8:05 pm - 11:30 am
AEP
-
IAD
16h 25m
2 stops
$722LATAM Airlines
Thu, Sep 3 - Wed, Sep 9
LATAM Airlines Logo
6:12 pm - 9:30 pm
IAD
-
AEP
26h 18m
2 stops
LATAM Airlines Logo
3:50 pm - 11:50 am
AEP
-
IAD
22h 00m
2 stops
$722LATAM Airlines
Sat, Oct 31 - Tue, Nov 3
LATAM Airlines Logo
10:06 am - 7:40 am
IAD
-
AEP
19h 34m
2 stops
LATAM Airlines Logo
5:35 pm - 2:05 pm
AEP
-
IAD
22h 30m
2 stops
$722LATAM Airlines
Mon, Nov 16 - Wed, Nov 25
LATAM Airlines Logo
10:16 am - 8:30 am
IAD
-
AEP
21h 14m
2 stops
LATAM Airlines Logo
8:05 pm - 11:30 am
AEP
-
IAD
16h 25m
2 stops
$722LATAM Airlines
Thu, Aug 27 - Wed, Sep 9

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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 28
IAD3:35 pmWashington, D.C. Dulles Intl
13h 05m
1 stop
AEP5:40 amBuenos Aires Jorge Newbery
Nov 2
AEP7:00 amBuenos Aires Jorge Newbery
20h 40m
2 stops
IAD1:40 amWashington, D.C. Dulles Intl
$759
Avianca
Dec 2
IAD5:45 amWashington, D.C. Dulles Intl
21h 55m
1 stop
AEP5:40 amBuenos Aires Jorge Newbery
Dec 20
AEP7:00 amBuenos Aires Jorge Newbery
20h 40m
2 stops
IAD1:40 amWashington, D.C. Dulles Intl
$760
Avianca
Aug 20
IAD3:35 pmWashington, D.C. Dulles Intl
13h 05m
1 stop
AEP5:40 amBuenos Aires Jorge Newbery
Sep 2
AEP7:00 amBuenos Aires Jorge Newbery
20h 45m
2 stops
IAD2:45 amWashington, D.C. Dulles Intl
$761

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 20
BWI1:00 pmBaltimore/Washington
23h 40m
2 stops
AEP2:40 pmBuenos Aires Jorge Newbery
Feb 2
AEP5:35 pmBuenos Aires Jorge Newbery
20h 13m
2 stops
BWI11:48 amBaltimore/Washington
$688
LATAM Airlines
Jan 19
BWI7:00 amBaltimore/Washington
23h 30m
2 stops
AEP8:30 amBuenos Aires Jorge Newbery
Feb 9
AEP2:55 pmBuenos Aires Jorge Newbery
20h 21m
2 stops
BWI9:16 amBaltimore/Washington
$718
LATAM Airlines
Oct 31
IAD6:12 pmWashington, D.C. Dulles Intl
26h 18m
2 stops
AEP9:30 pmBuenos Aires Jorge Newbery
Nov 3
AEP3:50 pmBuenos Aires Jorge Newbery
22h 00m
2 stops
IAD11:50 amWashington, D.C. Dulles Intl
$722

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 August 1, 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

BaltimoreBuenos Aires

BWI - AEP

BWIAEP

Baltimore/Washington

Wed 1/20

1:00 pm-2:40 pm

2 stops23h 40m

Buenos Aires Jorge Newbery

Tue 2/2

5:35 pm-11:48 am

2 stops20h 13m

$688

BaltimoreBuenos Aires

BWI - AEP

BWIAEP

Baltimore/Washington

Tue 1/19

7:00 am-8:30 am

2 stops23h 30m

Buenos Aires Jorge Newbery

Tue 2/9

2:55 pm-9:16 am

2 stops20h 21m

$718

Washington, D.C.Buenos Aires

IAD - AEP

IADAEP

Washington, D.C. Dulles Intl

Tue 1/19

10:05 am-7:40 am

2 stops19h 35m

Buenos Aires Jorge Newbery

Tue 2/2

5:35 pm-11:59 am

2 stops20h 24m

$718
Quickest round-trip

Washington, D.C.Buenos Aires

IAD - AEP

IADAEP

Washington, D.C. Dulles Intl

Thu 9/3

12:30 pm-8:30 am

2 stops19h 00m

Buenos Aires Jorge Newbery

Wed 9/9

8:05 pm-11:30 am

2 stops16h 25m

$722

Washington, D.C.Buenos Aires

IAD - AEP

IADAEP

Washington, D.C. Dulles Intl

Sat 10/31

3:03 pm-9:30 pm

2 stops29h 27m

Buenos Aires Jorge Newbery

Thu 11/5

3:50 pm-11:50 am

2 stops22h 00m

$722

Washington, D.C.Buenos Aires

IAD - AEP

IADAEP

Washington, D.C. Dulles Intl

Thu 9/3

8:28 am-8:30 am

2 stops23h 02m

Buenos Aires Jorge Newbery

Mon 9/7

5:35 pm-11:30 am

2 stops18h 55m

$722

Washington, D.C.Buenos Aires

IAD - AEP

IADAEP

Washington, D.C. Dulles Intl

Thu 9/3

12:30 pm-8:30 am

2 stops19h 00m

Buenos Aires Jorge Newbery

Wed 9/9

8:05 pm-11:30 am

2 stops16h 25m

$722

Washington, D.C.Buenos Aires

IAD - AEP

IADAEP

Washington, D.C. Dulles Intl

Sat 10/31

6:12 pm-9:30 pm

2 stops26h 18m

Buenos Aires Jorge Newbery

Tue 11/3

3:50 pm-11:50 am

2 stops22h 00m

$722

Washington, D.C.Buenos Aires

IAD - AEP

IADAEP

Washington, D.C. Dulles Intl

Mon 11/16

10:06 am-7:40 am

2 stops19h 34m

Buenos Aires Jorge Newbery

Wed 11/25

5:35 pm-2:05 pm

2 stops22h 30m

$722

Washington, D.C.Buenos Aires

IAD - AEP

IADAEP

Washington, D.C. Dulles Intl

Thu 8/27

10:16 am-8:30 am

2 stops21h 14m

Buenos Aires Jorge Newbery

Wed 9/9

8:05 pm-11:30 am

2 stops16h 25m

$722

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 74% 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.

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