$449 Cheap Flights from Tucuman (TUC) to Washington (IAD)

View $449 flight on Thu, Feb 19, 2026Opens in a new window

Popular airlines from Tucuman (TUC-Teniente General Benjamin Matienzo Intl.) to Washington Dulles Intl. Airport (IAD)

  • notification illustration

    Be in the know

    Get alerts if flight prices drop or rise*
  • deals illustration

    Book smarter

    Save up to 30% on select hotels after you book a flight*
  • trophy illustration

    Earn twice

    Earn your airline miles on top of our OneKeyCash
    Learn about One Key

Cheap Flights from Tucuman to Washington (TUC-IAD)

Prices were available within the past 7 days and start at $449 for one-way flights and $1,209 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

LATAM Airlines Group
Mon, Jan 12 - Sat, Feb 14
TUC
Tucuman
IAD
Washington
$1,209 Roundtrip, found 4 days ago
$1,209
Roundtrip
found 4 days ago
Select LATAM Airlines Group flight, departing Mon, Jan 12 from Tucuman to Washington, returning Sat, Feb 14, priced at $1,209 found 4 days ago
LATAM Airlines Group
Mon, Jan 12 - Sat, Feb 14
TUC
Tucuman
IAD
Washington
$1,216 Roundtrip, found 4 days ago
$1,216
Roundtrip
found 4 days ago
Select LATAM Airlines Group flight, departing Mon, Jan 12 from Tucuman to Washington, returning Sat, Feb 14, priced at $1,216 found 4 days ago
LATAM Airlines Group
Mon, Jan 12 - Sat, Feb 14
TUC
Tucuman
IAD
Washington
$1,217 Roundtrip, found 4 days ago
$1,217
Roundtrip
found 4 days ago
Select LATAM Airlines Group flight, departing Mon, Jan 12 from Tucuman to Washington, returning Sat, Feb 14, priced at $1,217 found 4 days ago
LATAM Airlines Group
Wed, Dec 31 - Sun, Jan 4
TUC
Tucuman
IAD
Washington
$1,254 Roundtrip, found 4 days ago
$1,254
Roundtrip
found 4 days ago
Select LATAM Airlines Group flight, departing Wed, Dec 31 from Tucuman to Washington, returning Sun, Jan 4, priced at $1,254 found 4 days ago
LATAM Airlines Group
Mon, Jan 12 - Sat, Feb 14
TUC
Tucuman
IAD
Washington
$1,273 Roundtrip, found 4 days ago
$1,273
Roundtrip
found 4 days ago
Select LATAM Airlines Group flight, departing Mon, Jan 12 from Tucuman to Washington, returning Sat, Feb 14, priced at $1,273 found 4 days ago
LATAM Airlines Group
Wed, Dec 31 - Sun, Jan 4
TUC
Tucuman
IAD
Washington
$1,322 Roundtrip, found 4 days ago
$1,322
Roundtrip
found 4 days ago
Select LATAM Airlines Group flight, departing Wed, Dec 31 from Tucuman to Washington, returning Sun, Jan 4, priced at $1,322 found 4 days ago
LATAM Airlines Group
Wed, Dec 31 - Sun, Jan 4
TUC
Tucuman
IAD
Washington
$1,332 Roundtrip, found 4 days ago
$1,332
Roundtrip
found 4 days ago
Select LATAM Airlines Group flight, departing Wed, Dec 31 from Tucuman to Washington, returning Sun, Jan 4, priced at $1,332 found 4 days ago
LATAM Airlines Group
Wed, Dec 31 - Sun, Jan 4
TUC
Tucuman
IAD
Washington
$1,358 Roundtrip, found 4 days ago
$1,358
Roundtrip
found 4 days ago
Select LATAM Airlines Group flight, departing Wed, Dec 31 from Tucuman to Washington, returning Sun, Jan 4, priced at $1,358 found 4 days ago
LATAM Airlines Group
Wed, Dec 31 - Sun, Jan 4
TUC
Tucuman
IAD
Washington
$1,380 Roundtrip, found 4 days ago
$1,380
Roundtrip
found 4 days ago
Select LATAM Airlines Group flight, departing Wed, Dec 31 from Tucuman to Washington, returning Sun, Jan 4, priced at $1,380 found 4 days ago
Aerolineas Argentinas
Sun, Dec 21 - Sat, Jan 3
TUC
Tucuman
IAD
Washington
$1,577 Roundtrip, found 1 day ago
$1,577
Roundtrip
found 1 day ago
Select Aerolineas Argentinas flight, departing Sun, Dec 21 from Tucuman to Washington, returning Sat, Jan 3, priced at $1,577 found 1 day ago

Frequently asked questions

How much does a flight from Teniente General Benjamin Matienzo Intl. Airport (TUC) to Washington Dulles Intl. Airport (IAD) cost?
Get a cheap one-way flight from $449 or cheap return flight from $1,209 from Teniente General Benjamin Matienzo Intl. Airport (TUC) to Washington Dulles Intl. Airport (IAD) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from Teniente General Benjamin Matienzo Intl. Airport (TUC) to Washington Dulles Intl. Airport (IAD)?
January is the most affordable month to fly from TUC to IAD. Planning your trip for the off-season is often the key to finding a great deal.
What is the cheapest airline that flies from Teniente General Benjamin Matienzo Intl. Airport (TUC) to Washington Dulles Intl. Airport (IAD)?
Use the filter tool on Expedia to compare different airlines and find the most affordable carrier that'll take you from TUC to IAD. Then, sort your results by "Price (lowest to highest)" to snag a good deal.
How many flights per day from Teniente General Benjamin Matienzo Intl. Airport (TUC) to Washington Dulles Intl. Airport (IAD)?
You'll have to hop on a flight with a layover when traveling from Teniente General Benjamin Matienzo Intl. Airport (TUC) 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 find the best option for your trip.
What day of the week has the most flights from TUC to IAD?
Typically you'll find the widest variety of flight choices on a Friday. Tuesdays tend to be the quietest.* However, this can vary depending on the time of year, airline and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Teniente General Benjamin Matienzo Intl. Airport (TUC) to Washington Dulles Intl. Airport (IAD)?
Select a flight from Teniente General Benjamin Matienzo Intl. Airport (TUC) to Washington Dulles Intl. Airport (IAD) that leaves before 3 PM to reduce the risk of delays and cancellations. Later departures 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 Teniente General Benjamin Matienzo Intl. Airport (TUC) to Washington Dulles Intl. Airport (IAD) last-minute?
Booking your flight from TUC to IAD right before your trip is usually more expensive. But if there's some wiggle room with your schedule, you could snag a cheap last-minute fare.
Is it cheaper to book a TUC to IAD flight and hotel package?
You'll typically save money by booking a TUC to IAD flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's easy to manage everything in one place. Once you've selected your ideal accommodations and flights, consider adding extras including activities, tours and car rentals.
Can I cancel or change the date of my flight from Teniente General Benjamin Matienzo Intl. Airport (TUC) to Washington Dulles Intl. Airport (IAD)?
If you reserved your TUC to IAD flight in the last 24 hours, you may be able to cancel or modify it without fees. Depending on the airline and the ticket type you purchased, 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 information.

Travel information

Origin airport
Teniente General Benjamin Matienzo Intl.
Destination airport
Washington Dulles Intl.
Roundtrip price
$1,209
Distance
4614 mi

Book with confidence

Tucuman to Washington Flights

The cheapest times to fly from Tucuman 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 Tucuman to Washington are during the month of January. You can find some of the cheapest flights from Tucuman to Washington with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Tucuman to Washington

Sunday is one of the best days to book for cheap flights from Tucuman 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 Tucuman 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 Tucuman to Washington in 2026. You can also book with separate airlines for your outbound and return journeys, from $449 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 Tucuman 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 Tucuman 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.

 

Tucuman to Washington Flights

Explore a world of travel with Expedia

*Available to One Key members.