Latest deals
Insights
When to book
FAQs
Price Alerts

Cheap flights from Washington, D.C. Dulles Intl Airport 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. Dulles Intl Airport to Buenos Aires departing on 8/23. 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. Dulles Intl Airport to Buenos Aires

Cheap round-trip flights

Enter your travel dates to find the best prices.
LATAM Airlines Logo
10:55 am - 7:40 amIAD  Washington, D.C. Dulles Intl-AEP Buenos Aires Jorge Newbery
18h 45m2 stops Atlanta Hartsfield-Jackson Lima J Chavez Intl
LATAM Airlines Logo
5:35 pm - 11:59 amAEP  Buenos Aires Jorge Newbery-IAD Washington, D.C. Dulles Intl
20h 24m2 stops Lima J Chavez Intl Atlanta Hartsfield-Jackson
$722LATAM Airlines
Thu, Dec 31 - Sat, Feb 13
LATAM Airlines Logo
12:29 pm - 8:30 amIAD  Washington, D.C. Dulles Intl-AEP Buenos Aires Jorge Newbery
19h 01m2 stops Atlanta Hartsfield-Jackson Lima J Chavez Intl
LATAM Airlines Logo
5:35 pm - 10:10 amAEP  Buenos Aires Jorge Newbery-IAD Washington, D.C. Dulles Intl
18h 35m2 stops Lima J Chavez Intl Atlanta Hartsfield-Jackson
$730LATAM Airlines
Wed, Oct 14 - Wed, Nov 4
Multiple Airlines Logo
7:17 pm - 8:30 amIAD  Washington, D.C. Dulles Intl-AEP Buenos Aires Jorge Newbery
36h 13m2 stops Atlanta Hartsfield-Jackson Lima J Chavez Intl
Multiple Airlines Logo
7:00 am - 5:20 amAEP  Buenos Aires Jorge Newbery-IAD Washington, D.C. Dulles Intl
23h 20m1 stop Bogotá El Dorado
$735Multiple Airlines
Fri, Sep 25 - Wed, Sep 30
Multiple Airlines Logo
7:17 pm - 6:30 pmIAD  Washington, D.C. Dulles Intl-AEP Buenos Aires Jorge Newbery
22h 13m2 stops Atlanta Hartsfield-Jackson Lima J Chavez Intl
Multiple Airlines Logo
7:00 am - 4:20 amAEP  Buenos Aires Jorge Newbery-IAD Washington, D.C. Dulles Intl
22h 20m2 stops Bogotá El Dorado San Salvador El Salvador Intl
$736Multiple Airlines
Mon, Sep 21 - Thu, Oct 1
Avianca Logo
6:50 am - 5:40 amIAD  Washington, D.C. Dulles Intl-AEP Buenos Aires Jorge Newbery
21h 50m1 stop Bogotá El Dorado
Avianca Logo
7:00 am - 2:15 pmAEP  Buenos Aires Jorge Newbery-IAD Washington, D.C. Dulles Intl
32h 15m1 stop Bogotá El Dorado
$740Avianca
Sun, Sep 6 - Tue, Sep 22
Avianca Logo
6:50 am - 5:40 amIAD  Washington, D.C. Dulles Intl-AEP Buenos Aires Jorge Newbery
21h 50m1 stop Bogotá El Dorado
Avianca Logo
7:00 am - 4:20 amAEP  Buenos Aires Jorge Newbery-IAD Washington, D.C. Dulles Intl
22h 20m2 stops Bogotá El Dorado San Salvador El Salvador Intl
$748Avianca
Sun, Sep 6 - Tue, Sep 22
Avianca Logo
6:50 am - 5:40 amIAD  Washington, D.C. Dulles Intl-AEP Buenos Aires Jorge Newbery
21h 50m1 stop Bogotá El Dorado
Avianca Logo
7:00 am - 2:45 amAEP  Buenos Aires Jorge Newbery-IAD Washington, D.C. Dulles Intl
20h 45m2 stops Bogotá El Dorado San Salvador El Salvador Intl
$759Avianca
Tue, Oct 6 - Fri, Oct 23
Avianca Logo
3:35 pm - 5:40 amIAD  Washington, D.C. Dulles Intl-AEP Buenos Aires Jorge Newbery
13h 05m1 stop Bogotá El Dorado
Avianca Logo
7:00 am - 1:40 amAEP  Buenos Aires Jorge Newbery-IAD Washington, D.C. Dulles Intl
20h 40m2 stops Bogotá El Dorado San Salvador El Salvador Intl
$762Avianca
Wed, Sep 16 - Mon, Nov 23
Avianca Logo
2:35 pm - 5:40 amIAD  Washington, D.C. Dulles Intl-AEP Buenos Aires Jorge Newbery
13h 05m1 stop Bogotá El Dorado
Avianca Logo
7:00 am - 4:25 amAEP  Buenos Aires Jorge Newbery-IAD Washington, D.C. Dulles Intl
23h 25m1 stop Bogotá El Dorado
$765Avianca
Tue, Jan 5 - Sun, Jan 24
Avianca Logo
6:50 am - 5:40 amIAD  Washington, D.C. Dulles Intl-AEP Buenos Aires Jorge Newbery
21h 50m1 stop Bogotá El Dorado
Avianca Logo
7:00 am - 2:15 pmAEP  Buenos Aires Jorge Newbery-IAD Washington, D.C. Dulles Intl
32h 15m1 stop Bogotá El Dorado
$773Avianca
Sun, Sep 6 - Tue, Sep 22

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

Avianca flights from Washington, D.C. Dulles Intl Airport to Buenos Aires Jorge Newbery Airport

Our best Avianca deals on Washington, D.C. Dulles Intl Airport to Buenos Aires Jorge Newbery Airport flight tickets
Avianca
Sep 6
IAD6:50 amWashington, D.C. Dulles Intl
21h 50m
1 stop
AEP5:40 amBuenos Aires Jorge Newbery
Sep 22
AEP7:00 amBuenos Aires Jorge Newbery
32h 15m
1 stop
IAD2:15 pmWashington, D.C. Dulles Intl
$740
Avianca
Sep 6
IAD6:50 amWashington, D.C. Dulles Intl
21h 50m
1 stop
AEP5:40 amBuenos Aires Jorge Newbery
Sep 22
AEP7:00 amBuenos Aires Jorge Newbery
22h 20m
2 stops
IAD4:20 amWashington, D.C. Dulles Intl
$748
Avianca
Oct 6
IAD6:50 amWashington, D.C. Dulles Intl
21h 50m
1 stop
AEP5:40 amBuenos Aires Jorge Newbery
Oct 23
AEP7:00 amBuenos Aires Jorge Newbery
20h 45m
2 stops
IAD2:45 amWashington, D.C. Dulles Intl
$759

LATAM Airlines flights from Washington, D.C. Dulles Intl Airport to Buenos Aires Jorge Newbery Airport

Our best LATAM Airlines deals on Washington, D.C. Dulles Intl Airport to Buenos Aires Jorge Newbery Airport flight tickets
LATAM Airlines
Oct 13
IAD8:03 amWashington, D.C. Dulles Intl
22h 37m
2 stops
AEP7:40 amBuenos Aires Jorge Newbery
Oct 22
AEP8:40 amBuenos Aires Jorge Newbery
27h 52m
2 stops
IAD11:32 amWashington, D.C. Dulles Intl
$722
LATAM Airlines
Oct 14
IAD12:29 pmWashington, D.C. Dulles Intl
19h 01m
2 stops
AEP8:30 amBuenos Aires Jorge Newbery
Nov 4
AEP5:35 pmBuenos Aires Jorge Newbery
18h 35m
2 stops
IAD10:10 amWashington, D.C. Dulles Intl
$730
LATAM Airlines
Aug 23
IAD12:29 pmWashington, D.C. Dulles Intl
25h 21m
2 stops
AEP2:50 pmBuenos Aires Jorge Newbery
Aug 31
AEP8:05 pmBuenos Aires Jorge Newbery
16h 28m
2 stops
IAD11:33 amWashington, D.C. Dulles Intl
$969

momondo Fare Finder

 
Customize your flight search to find flights from Washington, D.C. Dulles Intl Airport 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 10, 2026.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport 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 Washington, D.C. Dulles Intl - AEP Buenos Aires Jorge Newbery

IADAEP

Washington, D.C. Dulles Intl

Thu 12/31

10:55 am-7:40 am

2 stops18h 45m

Buenos Aires Jorge Newbery

Sat 2/13

5:35 pm-11:59 am

2 stops20h 24m

$722

Washington, D.C.Buenos Aires

IAD Washington, D.C. Dulles Intl - AEP Buenos Aires Jorge Newbery

IADAEP

Washington, D.C. Dulles Intl

Wed 10/14

12:29 pm-8:30 am

2 stops19h 01m

Buenos Aires Jorge Newbery

Wed 11/4

5:35 pm-10:10 am

2 stops18h 35m

$730

Washington, D.C.Buenos Aires

IAD Washington, D.C. Dulles Intl - AEP Buenos Aires Jorge Newbery

IADAEP

Washington, D.C. Dulles Intl

Fri 9/25

7:17 pm-8:30 am

2 stops36h 13m

Buenos Aires Jorge Newbery

Wed 9/30

7:00 am-5:20 am

1 stop23h 20m

$735

Washington, D.C.Buenos Aires

IAD Washington, D.C. Dulles Intl - AEP Buenos Aires Jorge Newbery

IADAEP

Washington, D.C. Dulles Intl

Mon 9/21

7:17 pm-6:30 pm

2 stops22h 13m

Buenos Aires Jorge Newbery

Thu 10/1

7:00 am-4:20 am

2 stops22h 20m

$736

Washington, D.C.Buenos Aires

IAD Washington, D.C. Dulles Intl - AEP Buenos Aires Jorge Newbery

IADAEP

Washington, D.C. Dulles Intl

Sun 9/6

6:50 am-5:40 am

1 stop21h 50m

Buenos Aires Jorge Newbery

Tue 9/22

7:00 am-2:15 pm

1 stop32h 15m

$740

Washington, D.C.Buenos Aires

IAD Washington, D.C. Dulles Intl - AEP Buenos Aires Jorge Newbery

IADAEP

Washington, D.C. Dulles Intl

Sun 9/6

6:50 am-5:40 am

1 stop21h 50m

Buenos Aires Jorge Newbery

Tue 9/22

7:00 am-4:20 am

2 stops22h 20m

$748

Washington, D.C.Buenos Aires

IAD Washington, D.C. Dulles Intl - AEP Buenos Aires Jorge Newbery

IADAEP

Washington, D.C. Dulles Intl

Tue 10/6

6:50 am-5:40 am

1 stop21h 50m

Buenos Aires Jorge Newbery

Fri 10/23

7:00 am-2:45 am

2 stops20h 45m

$759
Quickest round-trip

Washington, D.C.Buenos Aires

IAD Washington, D.C. Dulles Intl - AEP Buenos Aires Jorge Newbery

IADAEP

Washington, D.C. Dulles Intl

Wed 9/16

3:35 pm-5:40 am

1 stop13h 05m

Buenos Aires Jorge Newbery

Mon 11/23

7:00 am-1:40 am

2 stops20h 40m

$762

Washington, D.C.Buenos Aires

IAD Washington, D.C. Dulles Intl - AEP Buenos Aires Jorge Newbery

IADAEP

Washington, D.C. Dulles Intl

Tue 1/5

2:35 pm-5:40 am

1 stop13h 05m

Buenos Aires Jorge Newbery

Sun 1/24

7:00 am-4:25 am

1 stop23h 25m

$765

Washington, D.C.Buenos Aires

IAD Washington, D.C. Dulles Intl - AEP Buenos Aires Jorge Newbery

IADAEP

Washington, D.C. Dulles Intl

Sun 9/6

6:50 am-5:40 am

1 stop21h 50m

Buenos Aires Jorge Newbery

Tue 9/22

7:00 am-2:15 pm

1 stop32h 15m

$773

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. Dulles Intl Airport 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. Dulles Intl Airport to Buenos Aires Jorge Newbery Airport flights?

You could potentially save up to 51% on your flight if you consider stops on a Washington, D.C. Dulles Intl Airport to Buenos Aires Jorge Newbery Airport flight.

When to book flights from Washington, D.C. Dulles Intl Airport 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. Dulles Intl Airport 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. Dulles Intl Airport to Buenos Aires Jorge Newbery Airport (IAD to AEP) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Washington, D.C. Dulles Intl Airport to Buenos Aires Jorge Newbery Airport

Fastest flight time

13h 05m

Direct flights

None
The fastest flight from Washington, D.C. Dulles Intl Airport to Buenos Aires Jorge Newbery Airport takes 13h 05m
There are no direct flights from Washington, D.C. Dulles Intl Airport to Buenos Aires Jorge Newbery Airport. There are no popular flight routes from Washington, D.C. Dulles Intl Airport to Buenos Aires Jorge Newbery Airport.
Search flight deals

Frequently asked questions about flying from Washington, D.C. Dulles Intl Airport to Buenos Aires Jorge Newbery Airport

  • How far is Washington, D.C. Dulles Intl to Buenos Aires Jorge Newbery by plane?

    The distance between Washington, D.C. Dulles Intl and Buenos Aires Jorge Newbery is about 5219.1 mi. 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. Dulles Intl Airport to Buenos Aires Jorge Newbery Airport?

    Prices for flights from Washington, D.C. Dulles Intl Airport to Buenos Aires Jorge Newbery Airport refresh daily.

  • How old do you have to be to fly from Washington, D.C. Dulles Intl Airport 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. Dulles Intl Airport 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 Washington, D.C. to Buenos Aires?

It is quick and easy to find Washington, D.C. to Buenos Aires flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Buenos Aires that suits you.

Can I find flights from Washington, D.C. to Buenos Aires with flexible booking policies on momondo?

All flight searches from Washington, D.C. to Buenos Aires on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Washington, D.C. to Buenos Aires?

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

I’m not ready to book a flight from Washington, D.C. to Buenos Aires right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Washington, D.C. to Buenos Aires flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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 9/9
Wed 9/16
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 $496