$643 Cheap Flights from Washington (IAD) to Ushuaia (USH)

View $643 flight on Sun, Mar 15, 2026Opens in a new window

Popular airlines from Washington Dulles Intl. Airport (IAD) to Ushuaia (USH-Malvinas Argentinas Intl.)

Cheap Flights from Washington to Ushuaia (IAD-USH)

Prices were available within the past 7 days and start at $643 for one-way flights and $1,138 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Tue, Nov 11 - Tue, Nov 25
IAD
Washington
USH
Ushuaia
$1,138 Roundtrip, found 8 hours ago
$1,138
Roundtrip
found 8 hours ago
Select United flight, departing Tue, Nov 11 from Washington to Ushuaia, returning Tue, Nov 25, priced at $1,138 found 8 hours ago
United
Tue, Nov 11 - Tue, Nov 25
IAD
Washington
USH
Ushuaia
$1,149 Roundtrip, found 8 hours ago
$1,149
Roundtrip
found 8 hours ago
Select United flight, departing Tue, Nov 11 from Washington to Ushuaia, returning Tue, Nov 25, priced at $1,149 found 8 hours ago
United
Wed, Nov 12 - Thu, Nov 27
IAD
Washington
USH
Ushuaia
$1,346 Roundtrip, found 8 hours ago
$1,346
Roundtrip
found 8 hours ago
Select United flight, departing Wed, Nov 12 from Washington to Ushuaia, returning Thu, Nov 27, priced at $1,346 found 8 hours ago
United
Tue, Nov 11 - Tue, Nov 25
IAD
Washington
USH
Ushuaia
$1,354 Roundtrip, found 8 hours ago
$1,354
Roundtrip
found 8 hours ago
Select United flight, departing Tue, Nov 11 from Washington to Ushuaia, returning Tue, Nov 25, priced at $1,354 found 8 hours ago
United
Tue, Nov 11 - Tue, Nov 25
IAD
Washington
USH
Ushuaia
$1,356 Roundtrip, found 8 hours ago
$1,356
Roundtrip
found 8 hours ago
Select United flight, departing Tue, Nov 11 from Washington to Ushuaia, returning Tue, Nov 25, priced at $1,356 found 8 hours ago
United
Tue, Nov 11 - Tue, Nov 25
IAD
Washington
USH
Ushuaia
$1,359 Roundtrip, found 8 hours ago
$1,359
Roundtrip
found 8 hours ago
Select United flight, departing Tue, Nov 11 from Washington to Ushuaia, returning Tue, Nov 25, priced at $1,359 found 8 hours ago
United
Tue, Nov 11 - Tue, Nov 25
IAD
Washington
USH
Ushuaia
$1,364 Roundtrip, found 8 hours ago
$1,364
Roundtrip
found 8 hours ago
Select United flight, departing Tue, Nov 11 from Washington to Ushuaia, returning Tue, Nov 25, priced at $1,364 found 8 hours ago
avianca
Tue, Nov 11 - Tue, Nov 25
IAD
Washington
USH
Ushuaia
$1,365 Roundtrip, found 8 hours ago
$1,365
Roundtrip
found 8 hours ago
Select avianca flight, departing Tue, Nov 11 from Washington to Ushuaia, returning Tue, Nov 25, priced at $1,365 found 8 hours ago
United
Tue, Nov 11 - Tue, Nov 25
IAD
Washington
USH
Ushuaia
$1,370 Roundtrip, found 8 hours ago
$1,370
Roundtrip
found 8 hours ago
Select United flight, departing Tue, Nov 11 from Washington to Ushuaia, returning Tue, Nov 25, priced at $1,370 found 8 hours ago
Copa
Sat, Nov 8 - Tue, Nov 25
IAD
Washington
USH
Ushuaia
$1,477 Roundtrip, found 8 hours ago
$1,477
Roundtrip
found 8 hours ago
Select Copa flight, departing Sat, Nov 8 from Washington to Ushuaia, returning Tue, Nov 25, priced at $1,477 found 8 hours ago
Flights from Washington (IAD) to Ushuaia (USH)
Origin airport
Washington Dulles Intl.
Destination airport
Malvinas Argentinas Intl.
Roundtrip price
$1,138
Distance
6502 mi

Washington to Ushuaia Flights

The cheapest times to fly from Washington to Ushuaia

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 Washington to Ushuaia are during the month of November. You can find some of the cheapest flights from Washington to Ushuaia with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Washington to Ushuaia

Sunday is one of the best days to book for cheap flights from Washington to Ushuaia: 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 Washington to Ushuaia

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 Washington to Ushuaia in 2025. You can also book with separate airlines for your outbound and return journeys, from $643 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 Washington to Ushuaia 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 Washington to Ushuaia 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.

 

Frequently asked questions

How much does a flight from Washington Dulles Intl. Airport (IAD) to Malvinas Argentinas Intl. Airport (USH) cost?
Lock in a cheap one-way flight from $643 or cheap return flight from $1,138 from Washington Dulles Intl. Airport (IAD) to Malvinas Argentinas Intl. Airport (USH) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Washington Dulles Intl. Airport (IAD) to Malvinas Argentinas Intl. Airport (USH)?
November is the most affordable month to fly from IAD to USH. Timing your trip outside of the busy season is often the key to landing a great deal.
What is the cheapest airline that flies from Washington Dulles Intl. Airport (IAD) to Malvinas Argentinas Intl. Airport (USH)?
Use the filter tool on Expedia to compare different airlines and find the most affordable carrier that'll take you from IAD to USH. Then, sort your results by "Price (lowest to highest)" to score a good deal.
How many flights per day from Washington Dulles Intl. Airport (IAD) to Malvinas Argentinas Intl. Airport (USH)?
There are no daily direct flights available from Washington Dulles Intl. Airport (IAD) to Malvinas Argentinas Intl. Airport (USH). But you can book flights with layovers. Filter your search on Expedia to include one or two stops, and you'll be on your way before you know it.
What day of the week has the most flights from IAD to USH?
You'll generally find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can change from season to season and during public holidays or peak travel times.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Washington Dulles Intl. Airport (IAD) to Malvinas Argentinas Intl. Airport (USH)?
To avoid possible delays on the Washington Dulles Intl. Airport (IAD) to Malvinas Argentinas Intl. Airport (USH) route, travel before 3 PM. Departures after this hour have a 22% higher chance of cancellation.**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 Washington Dulles Intl. Airport (IAD) to Malvinas Argentinas Intl. Airport (USH) last-minute?
Booking your ticket from IAD to USH shortly before your getaway is typically more expensive. However, if you're flexible with your departure times and dates, you could grab a cheap last-minute fare.
Is it cheaper to book an IAD to USH flight and hotel package?
Compared with arranging flights and hotels separately, booking an IAD to USH flight and hotel package with Expedia could result in significant savings. What's more, having everything in one place will take the hassle out of travel planning. Simply pick your flights and choose from our extensive range of hotels, then tailor your trip with other add-ons like activities and car rentals.
Can I cancel or change the date of my flight from Washington Dulles Intl. Airport (IAD) to Malvinas Argentinas Intl. Airport (USH)?
If you reserved your IAD to USH flight within the last 24 hours, you may be able to cancel or modify it without fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes after that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, visit our Customer Service portal for more details.

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*Available to One Key members.