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Cheap flights from District of Columbia 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 District of Columbia to Buenos Aires departing on 9/15. 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

Enter your travel dates to find the best prices.
LATAM Airlines Logo
3:03 pm - 10:30 am
IAD
-
AEP
18h 27m
2 stops
LATAM Airlines Logo
3:45 pm - 9:10 am
AEP
-
IAD
18h 25m
2 stops
$667LATAM Airlines
Wed, Sep 2 - Thu, Sep 24
Delta Logo
2:00 pm - 4:00 pm
DCA
-
AEP
25h 00m
2 stops
Delta Logo
9:00 pm - 2:05 pm
AEP
-
DCA
18h 05m
2 stops
$667Delta
Thu, Aug 20 - Sun, Aug 23
Delta Logo
6:00 pm - 2:50 pm
IAD
-
AEP
19h 50m
2 stops
Delta Logo
8:05 pm - 11:59 am
AEP
-
IAD
16h 54m
2 stops
$695Delta
Tue, Sep 29 - Wed, Oct 21
Delta Logo
11:10 am - 7:40 am
DCA
-
AEP
19h 30m
2 stops
Delta Logo
3:45 pm - 12:44 pm
AEP
-
DCA
21h 59m
2 stops
$695Delta
Wed, Sep 30 - Mon, Oct 19
LATAM Airlines Logo
12:29 pm - 6:25 pm
IAD
-
AEP
28h 56m
2 stops
LATAM Airlines Logo
8:05 pm - 9:04 pm
AEP
-
IAD
25h 59m
2 stops
$715LATAM Airlines
Wed, Jun 17 - Wed, Jun 24
LATAM Airlines Logo
2:00 pm - 2:50 pm
DCA
-
AEP
23h 50m
2 stops
LATAM Airlines Logo
11:45 am - 2:05 pm
AEP
-
DCA
27h 20m
2 stops
$715LATAM Airlines
Mon, Sep 7 - Fri, Sep 11
Delta Logo
7:16 pm - 2:50 pm
IAD
-
AEP
18h 34m
2 stops
Delta Logo
8:05 pm - 2:41 pm
AEP
-
IAD
19h 36m
2 stops
$722Delta
Sun, Oct 4 - Wed, Oct 21
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
Fri, Aug 7 - Sun, Aug 23
Avianca Logo
2:35 pm - 5:40 am
IAD
-
AEP
13h 05m
1 stop
Avianca Logo
7:00 am - 1:40 am
AEP
-
IAD
20h 40m
2 stops
$739Avianca
Sat, Nov 7 - Sun, Nov 22
Avianca Logo
6:50 am - 5:40 am
IAD
-
AEP
21h 50m
1 stop
Avianca Logo
7:00 am - 2:15 pm
AEP
-
IAD
32h 15m
1 stop
$741Avianca
Thu, Oct 1 - Sat, Oct 31

Avianca flights from District of Columbia to Buenos Aires Jorge Newbery Airport

Our best Avianca deals on District of Columbia to Buenos Aires Jorge Newbery Airport flight tickets
Avianca
Nov 7
IAD2:35 pmWashington, D.C. Dulles Intl
13h 05m
1 stop
AEP5:40 amBuenos Aires Jorge Newbery
Nov 22
AEP7:00 amBuenos Aires Jorge Newbery
20h 40m
2 stops
IAD1:40 amWashington, D.C. Dulles Intl
$739
Avianca
Oct 1
IAD3:35 pmWashington, D.C. Dulles Intl
13h 05m
1 stop
AEP5:40 amBuenos Aires Jorge Newbery
Oct 15
AEP7:00 amBuenos Aires Jorge Newbery
23h 20m
1 stop
IAD5:20 amWashington, D.C. Dulles Intl
$741
Avianca
Sep 24
IAD3:35 pmWashington, D.C. Dulles Intl
13h 05m
1 stop
AEP5:40 amBuenos Aires Jorge Newbery
Sep 28
AEP7:00 amBuenos Aires Jorge Newbery
23h 20m
1 stop
IAD5:20 amWashington, D.C. Dulles Intl
$749

LATAM Airlines flights from District of Columbia to Buenos Aires Jorge Newbery Airport

Our best LATAM Airlines deals on District of Columbia to Buenos Aires Jorge Newbery Airport flight tickets
LATAM Airlines
Sep 2
IAD3:03 pmWashington, D.C. Dulles Intl
18h 27m
2 stops
AEP10:30 amBuenos Aires Jorge Newbery
Sep 24
AEP3:45 pmBuenos Aires Jorge Newbery
18h 25m
2 stops
IAD9:10 amWashington, D.C. Dulles Intl
$667
LATAM Airlines
Jun 17
IAD12:29 pmWashington, D.C. Dulles Intl
28h 56m
2 stops
AEP6:25 pmBuenos Aires Jorge Newbery
Jun 24
AEP8:05 pmBuenos Aires Jorge Newbery
25h 59m
2 stops
IAD9:04 pmWashington, D.C. Dulles Intl
$715
LATAM Airlines
Jun 12
DCA2:45 pmWashington, D.C. Reagan-National
27h 55m
2 stops
AEP7:40 pmBuenos Aires Jorge Newbery
Jun 16
AEP8:05 pmBuenos Aires Jorge Newbery
23h 25m
2 stops
DCA6:30 pmWashington, D.C. Reagan-National
$721

momondo Fare Finder

 
Customize your flight search to find flights from District of Columbia 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 June 2, 2026.
Use the filters below to find and compare flights from District of Columbia 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

Wed 9/2

3:03 pm-10:30 am

2 stops18h 27m

Buenos Aires Jorge Newbery

Thu 9/24

3:45 pm-9:10 am

2 stops18h 25m

$667

Washington, D.C.Buenos Aires

DCA - AEP

DCAAEP

Washington, D.C. Reagan-National

Thu 8/20

2:00 pm-4:00 pm

2 stops25h 00m

Buenos Aires Jorge Newbery

Sun 8/23

9:00 pm-2:05 pm

2 stops18h 05m

$667

Washington, D.C.Buenos Aires

IAD - AEP

IADAEP

Washington, D.C. Dulles Intl

Tue 9/29

6:00 pm-2:50 pm

2 stops19h 50m

Buenos Aires Jorge Newbery

Wed 10/21

8:05 pm-11:59 am

2 stops16h 54m

$695

Washington, D.C.Buenos Aires

DCA - AEP

DCAAEP

Washington, D.C. Reagan-National

Wed 9/30

11:10 am-7:40 am

2 stops19h 30m

Buenos Aires Jorge Newbery

Mon 10/19

3:45 pm-12:44 pm

2 stops21h 59m

$695

Washington, D.C.Buenos Aires

IAD - AEP

IADAEP

Washington, D.C. Dulles Intl

Wed 6/17

12:29 pm-6:25 pm

2 stops28h 56m

Buenos Aires Jorge Newbery

Wed 6/24

8:05 pm-9:04 pm

2 stops25h 59m

$715

Washington, D.C.Buenos Aires

DCA - AEP

DCAAEP

Washington, D.C. Reagan-National

Mon 9/7

2:00 pm-2:50 pm

2 stops23h 50m

Buenos Aires Jorge Newbery

Fri 9/11

11:45 am-2:05 pm

2 stops27h 20m

$715

Washington, D.C.Buenos Aires

IAD - AEP

IADAEP

Washington, D.C. Dulles Intl

Sun 10/4

7:16 pm-2:50 pm

2 stops18h 34m

Buenos Aires Jorge Newbery

Wed 10/21

8:05 pm-2:41 pm

2 stops19h 36m

$722

Washington, D.C.Buenos Aires

IAD - AEP

IADAEP

Washington, D.C. Dulles Intl

Fri 8/7

6:50 am-5:40 am

1 stop21h 50m

Buenos Aires Jorge Newbery

Sun 8/23

7:00 am-2:45 am

2 stops20h 45m

$738
Quickest round-trip

Washington, D.C.Buenos Aires

IAD - AEP

IADAEP

Washington, D.C. Dulles Intl

Sat 11/7

2:35 pm-5:40 am

1 stop13h 05m

Buenos Aires Jorge Newbery

Sun 11/22

7:00 am-1:40 am

2 stops20h 40m

$739

Washington, D.C.Buenos Aires

IAD - AEP

IADAEP

Washington, D.C. Dulles Intl

Thu 10/1

6:50 am-5:40 am

1 stop21h 50m

Buenos Aires Jorge Newbery

Sat 10/31

7:00 am-2:15 pm

1 stop32h 15m

$741

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 District of Columbia 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 District of Columbia to Buenos Aires Jorge Newbery Airport flights?

You could potentially save up to 43% on your flight if you consider stops on a District of Columbia to Buenos Aires Jorge Newbery Airport flight.

Cheap District of Columbia to Buenos Aires Jorge Newbery Airport flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from District of Columbia to Buenos Aires Jorge Newbery Airport

Fastest flight time

13h 05m

Direct flights

None
The fastest flight from District of Columbia to Buenos Aires Jorge Newbery Airport takes 13h 05m
There are no direct flights from District of Columbia to Buenos Aires Jorge Newbery Airport. There are no popular flight routes from District of Columbia to Buenos Aires Jorge Newbery Airport.
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Frequently asked questions about flying from District of Columbia to Buenos Aires Jorge Newbery Airport

  • When did momondo last update prices for flights from District of Columbia to Buenos Aires Jorge Newbery Airport?

    Prices for flights from District of Columbia to Buenos Aires Jorge Newbery Airport were last updated today.

  • How old do you have to be to fly from District of Columbia to Buenos Aires Jorge Newbery Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from District of Columbia to Buenos Aires Jorge Newbery Airport.

  • What documentation or ID do you need to fly to Buenos Aires Jorge Newbery Airport?

    The travel and health documents required for your trip to Buenos Aires Jorge Newbery Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Buenos Aires Jorge Newbery Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Why use momondo?

Why should I use momondo to find a flight deal from District of Columbia to Buenos Aires?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from District of Columbia to Buenos Aires for you.

Can I find flights from District of Columbia to Buenos Aires with flexible booking policies on momondo?

Yes. All flights to Buenos Aires from District of Columbia on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from District of Columbia to Buenos Aires?

momondo provides multiple filters to help you find the best flight to Buenos Aires from District of Columbia. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from District of Columbia to Buenos Aires right now. Can momondo alert me if prices change?

Price alerts on flights to Buenos Aires from District of Columbia are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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