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Cheap flights from Washington, D.C. Dulles Intl Airport 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 Washington, D.C. Dulles Intl Airport to Buenos Aires departing on 6/10. 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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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
6:00 am - 7:40 am
IAD
-
AEP
24h 40m
2 stops
LATAM Airlines Logo
5:35 pm - 9:04 pm
AEP
-
IAD
28h 29m
2 stops
$695LATAM Airlines
Mon, Jun 22 - Wed, Jun 24
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
11:05 am - 8:30 am
IAD
-
AEP
20h 25m
2 stops
LATAM Airlines Logo
8:05 pm - 5:33 pm
AEP
-
IAD
22h 28m
2 stops
$721LATAM Airlines
Wed, Sep 2 - Thu, Sep 24
LATAM Airlines Logo
12:25 pm - 2:50 pm
IAD
-
AEP
25h 25m
2 stops
LATAM Airlines Logo
3:45 pm - 11:59 am
AEP
-
IAD
21h 14m
2 stops
$722LATAM Airlines
Sun, Oct 4 - Thu, Oct 15
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
$737Avianca
Thu, Jun 11 - Wed, Jun 24
Avianca Logo
5:45 am - 5:40 am
IAD
-
AEP
21h 55m
1 stop
Avianca Logo
7:00 am - 1:40 am
AEP
-
IAD
20h 40m
2 stops
$738Avianca
Sun, Nov 8 - Fri, Nov 13
Avianca Logo
6:50 am - 5:40 am
IAD
-
AEP
21h 50m
1 stop
Avianca Logo
7:00 am - 2:40 am
AEP
-
IAD
20h 40m
2 stops
$739Avianca
Wed, Oct 7 - Tue, Oct 27
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
LATAM Airlines Logo
12:29 pm - 7:45 pm
IAD
-
AEP
30h 16m
2 stops
LATAM Airlines Logo
3:45 pm - 6:19 pm
AEP
-
IAD
27h 34m
2 stops
$742LATAM Airlines
Tue, Jul 21 - Tue, Jul 28
Avianca Logo
6:50 am - 5:40 am
IAD
-
AEP
21h 50m
1 stop
Avianca Logo
7:00 am - 5:20 am
AEP
-
IAD
23h 20m
1 stop
$753Avianca
Thu, Sep 3 - Wed, Sep 9

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
Jun 22
IAD6:00 amWashington, D.C. Dulles Intl
24h 40m
2 stops
AEP7:40 amBuenos Aires Jorge Newbery
Jun 24
AEP5:35 pmBuenos Aires Jorge Newbery
28h 29m
2 stops
IAD9:04 pmWashington, D.C. Dulles Intl
$695
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
Sep 2
IAD11:05 amWashington, D.C. Dulles Intl
20h 25m
2 stops
AEP8:30 amBuenos Aires Jorge Newbery
Sep 24
AEP8:05 pmBuenos Aires Jorge Newbery
22h 28m
2 stops
IAD5:33 pmWashington, D.C. Dulles Intl
$721

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
Jun 11
IAD6:50 amWashington, D.C. Dulles Intl
21h 50m
1 stop
AEP5:40 amBuenos Aires Jorge Newbery
Jun 24
AEP7:00 amBuenos Aires Jorge Newbery
20h 45m
2 stops
IAD2:45 amWashington, D.C. Dulles Intl
$737
Avianca
Nov 8
IAD5:45 amWashington, D.C. Dulles Intl
21h 55m
1 stop
AEP5:40 amBuenos Aires Jorge Newbery
Nov 13
AEP7:00 amBuenos Aires Jorge Newbery
20h 40m
2 stops
IAD1:40 amWashington, D.C. Dulles Intl
$738
Avianca
Oct 7
IAD6:50 amWashington, D.C. Dulles Intl
21h 50m
1 stop
AEP5:40 amBuenos Aires Jorge Newbery
Oct 27
AEP7:00 amBuenos Aires Jorge Newbery
20h 40m
2 stops
IAD2:40 amWashington, D.C. Dulles Intl
$739

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 May 31, 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 - AEP

IADAEP

Washington, D.C. Dulles Intl

Mon 6/22

6:00 am-7:40 am

2 stops24h 40m

Buenos Aires Jorge Newbery

Wed 6/24

5:35 pm-9:04 pm

2 stops28h 29m

$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

IAD - AEP

IADAEP

Washington, D.C. Dulles Intl

Wed 9/2

11:05 am-8:30 am

2 stops20h 25m

Buenos Aires Jorge Newbery

Thu 9/24

8:05 pm-5:33 pm

2 stops22h 28m

$721

Washington, D.C.Buenos Aires

IAD - AEP

IADAEP

Washington, D.C. Dulles Intl

Sun 10/4

12:25 pm-2:50 pm

2 stops25h 25m

Buenos Aires Jorge Newbery

Thu 10/15

3:45 pm-11:59 am

2 stops21h 14m

$722

Washington, D.C.Buenos Aires

IAD - AEP

IADAEP

Washington, D.C. Dulles Intl

Thu 6/11

6:50 am-5:40 am

1 stop21h 50m

Buenos Aires Jorge Newbery

Wed 6/24

7:00 am-2:45 am

2 stops20h 45m

$737

Washington, D.C.Buenos Aires

IAD - AEP

IADAEP

Washington, D.C. Dulles Intl

Sun 11/8

5:45 am-5:40 am

1 stop21h 55m

Buenos Aires Jorge Newbery

Fri 11/13

7:00 am-1:40 am

2 stops20h 40m

$738
Quickest round-trip

Washington, D.C.Buenos Aires

IAD - AEP

IADAEP

Washington, D.C. Dulles Intl

Wed 10/7

6:50 am-5:40 am

1 stop21h 50m

Buenos Aires Jorge Newbery

Tue 10/27

7:00 am-2:40 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

Washington, D.C.Buenos Aires

IAD - AEP

IADAEP

Washington, D.C. Dulles Intl

Tue 7/21

12:29 pm-7:45 pm

2 stops30h 16m

Buenos Aires Jorge Newbery

Tue 7/28

3:45 pm-6:19 pm

2 stops27h 34m

$742

Washington, D.C.Buenos Aires

IAD - AEP

IADAEP

Washington, D.C. Dulles Intl

Thu 9/3

6:50 am-5:40 am

1 stop21h 50m

Buenos Aires Jorge Newbery

Wed 9/9

7:00 am-5:20 am

1 stop23h 20m

$753

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. 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 10% 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.
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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.

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