$452 Cheap Flights from Buenos Aires (AEP) to Washington (IAD)

View $452 flight on Tue, Dec 9, 2025Opens in a new window

Popular airlines from Buenos Aires (AEP-Aeroparque Jorge Newbery) to Washington Dulles Intl. Airport (IAD)

Cheap Flights from Buenos Aires to Washington (AEP-IAD)

Prices were available within the past 7 days and start at $452 for one-way flights and $741 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

avianca
Tue, Apr 21 - Sun, May 3
AEP
Buenos Aires
IAD
Washington
$741 Roundtrip, found 3 days ago
$741
Roundtrip
found 3 days ago
Select avianca flight, departing Tue, Apr 21 from Buenos Aires to Washington, returning Sun, May 3, priced at $741 found 3 days ago
avianca
Tue, Apr 21 - Sun, May 3
AEP
Buenos Aires
IAD
Washington
$754 Roundtrip, found 3 days ago
$754
Roundtrip
found 3 days ago
Select avianca flight, departing Tue, Apr 21 from Buenos Aires to Washington, returning Sun, May 3, priced at $754 found 3 days ago
LATAM Airlines Group
Mon, Nov 3 - Sun, Nov 16
AEP
Buenos Aires
IAD
Washington
$787 Roundtrip, found 5 days ago
$787
Roundtrip
found 5 days ago
Select LATAM Airlines Group flight, departing Mon, Nov 3 from Buenos Aires to Washington, returning Sun, Nov 16, priced at $787 found 5 days ago
LATAM Airlines Group
Fri, Sep 4 - Thu, Sep 24
AEP
Buenos Aires
IAD
Washington
$792 Roundtrip, found 2 days ago
$792
Roundtrip
found 2 days ago
Select LATAM Airlines Group flight, departing Fri, Sep 4 from Buenos Aires to Washington, returning Thu, Sep 24, priced at $792 found 2 days ago
LATAM Airlines Group
Fri, Sep 4 - Thu, Sep 24
AEP
Buenos Aires
IAD
Washington
$802 Roundtrip, found 2 days ago
$802
Roundtrip
found 2 days ago
Select LATAM Airlines Group flight, departing Fri, Sep 4 from Buenos Aires to Washington, returning Thu, Sep 24, priced at $802 found 2 days ago
avianca
Tue, Apr 21 - Sun, May 3
AEP
Buenos Aires
IAD
Washington
$812 Roundtrip, found 3 days ago
$812
Roundtrip
found 3 days ago
Select avianca flight, departing Tue, Apr 21 from Buenos Aires to Washington, returning Sun, May 3, priced at $812 found 3 days ago
LATAM Airlines Group
Sun, Feb 1 - Fri, Apr 10
AEP
Buenos Aires
IAD
Washington
$813 Roundtrip, found 15 hours ago
$813
Roundtrip
found 15 hours ago
Select LATAM Airlines Group flight, departing Sun, Feb 1 from Buenos Aires to Washington, returning Fri, Apr 10, priced at $813 found 15 hours ago
avianca
Tue, May 5 - Sun, May 10
AEP
Buenos Aires
IAD
Washington
$819 Roundtrip, found 2 days ago
$819
Roundtrip
found 2 days ago
Select avianca flight, departing Tue, May 5 from Buenos Aires to Washington, returning Sun, May 10, priced at $819 found 2 days ago
LATAM Airlines Group
Mon, Dec 1 - Wed, Dec 10
AEP
Buenos Aires
IAD
Washington
$823 Roundtrip, found 2 days ago
$823
Roundtrip
found 2 days ago
Select LATAM Airlines Group flight, departing Mon, Dec 1 from Buenos Aires to Washington, returning Wed, Dec 10, priced at $823 found 2 days ago
Air Canada
Thu, Mar 12 - Thu, Apr 2
AEP
Buenos Aires
IAD
Washington
$1,598 Roundtrip, found 2 days ago
$1,598
Roundtrip
found 2 days ago
Select Air Canada flight, departing Thu, Mar 12 from Buenos Aires to Washington, returning Thu, Apr 2, priced at $1,598 found 2 days ago

Alternative airports near Washington

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Ronald Reagan Washington National DCA. Closest option available. Average driving time to city center is 8 minutes. Flights from $1,092
DCA
Ronald Reagan Washington National
Closest
Average driving time to city center8 min
Flights from $1,092

Frequently asked questions

How much does a flight from Aeroparque Jorge Newbery Airport (AEP) to Washington Dulles Intl. Airport (IAD) cost?
Secure a cheap one-way flight from $452 or cheap return flight from $741 from Aeroparque Jorge Newbery Airport (AEP) to Washington Dulles Intl. Airport (IAD) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from Aeroparque Jorge Newbery Airport (AEP) to Washington Dulles Intl. Airport (IAD)?
April is the most affordable month to fly from AEP to IAD. Planning your trip for the off-season is often the key to finding better deals on flights.
What is the cheapest airline that flies from Aeroparque Jorge Newbery Airport (AEP) to Washington Dulles Intl. Airport (IAD)?
Use the filters on Expedia to compare different airlines and find the cheapest carrier that'll fly you from AEP to IAD. Then, sort your results by "Price (lowest to highest)" to pick up a good deal.
How many flights per day from Aeroparque Jorge Newbery Airport (AEP) to Washington Dulles Intl. Airport (IAD)?
You'll need to catch a flight with a layover when traveling from Aeroparque Jorge Newbery Airport (AEP) to Washington Dulles Intl. Airport (IAD). There are no daily direct flights on this route. However, simply filter your search to include one or more stops to discover the best option for your trip.
What day of the week has the most flights from AEP to IAD?
You'll usually find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can change from season to season and during peak travel times or public holidays.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Aeroparque Jorge Newbery Airport (AEP) to Washington Dulles Intl. Airport (IAD)?
Opt for a flight from Aeroparque Jorge Newbery Airport (AEP) to Washington Dulles Intl. Airport (IAD) that takes off before 3 PM to reduce the likelihood of delays. Departures after this time have a 22% higher chance of being canceled, on average.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Aeroparque Jorge Newbery Airport (AEP) to Washington Dulles Intl. Airport (IAD) last-minute?
Last-minute bookings from AEP to IAD are typically more expensive. For the cheapest rates, start searching for flights as early as possible. That said, if your travel plans are flexible, it's possible to score a cheap ticket right before your trip.
Is it cheaper to book an AEP to IAD flight and hotel package?
You'll typically save money by securing an AEP to IAD flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's easy to manage it all in one place. Once you've chosen your ideal accommodations and flights, consider adding extras like tours, car rentals and activities.
Can I cancel or change the date of my flight from Aeroparque Jorge Newbery Airport (AEP) to Washington Dulles Intl. Airport (IAD)?
Generally, it's possible to reschedule or cancel your AEP to IAD flight. However, if it's been more than 24 hours since booking, additional fees may apply. Check your airline's policies in your itinerary to see what changes are allowed and whether any costs are involved. You'll also find more information on our Customer Service portal.

Travel information

Origin airport
Aeroparque Jorge Newbery
Destination airport
Washington Dulles Intl.
Airlines serving
Air Canada, LATAM Airlines Group, avianca
Roundtrip price
$741
Distance
5222 mi

Book with confidence

Buenos Aires to Washington Flights

The cheapest times to fly from Buenos Aires to Washington

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Buenos Aires to Washington are during the month of April. You can find some of the cheapest flights from Buenos Aires to Washington with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Buenos Aires to Washington

Sunday is one of the best days to book for cheap flights from Buenos Aires to Washington: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Buenos Aires to Washington

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Buenos Aires to Washington in 2025. You can also book with separate airlines for your outbound and return journeys, from $452 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Buenos Aires to Washington flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Buenos Aires to Washington airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Buenos Aires to Washington Flights

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*Available to One Key members.