$493 Cheap Flights from Salta (SLA) to Washington (IAD)

View $493 flight on Wed, Nov 26, 2025Opens in a new window

Popular airlines from Salta (SLA-Martín Miguel de Güemes Intl.) to Washington Dulles Intl. Airport (IAD)

Cheap Flights from Salta to Washington (SLA-IAD)

Prices were available within the past 7 days and start at $493 for one-way flights and $991 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

LATAM Airlines Group
Wed, Oct 22 - Sun, Oct 26
SLA
Salta
IAD
Washington
$991 Roundtrip, found 3 days ago
$991
Roundtrip
found 3 days ago
Select LATAM Airlines Group flight, departing Wed, Oct 22 from Salta to Washington, returning Sun, Oct 26, priced at $991 found 3 days ago
LATAM Airlines Group
Wed, Oct 22 - Sun, Oct 26
SLA
Salta
IAD
Washington
$997 Roundtrip, found 3 days ago
$997
Roundtrip
found 3 days ago
Select LATAM Airlines Group flight, departing Wed, Oct 22 from Salta to Washington, returning Sun, Oct 26, priced at $997 found 3 days ago
LATAM Airlines Group
Wed, Oct 22 - Sun, Oct 26
SLA
Salta
IAD
Washington
$999 Roundtrip, found 3 days ago
$999
Roundtrip
found 3 days ago
Select LATAM Airlines Group flight, departing Wed, Oct 22 from Salta to Washington, returning Sun, Oct 26, priced at $999 found 3 days ago
LATAM Airlines Group
Wed, Oct 22 - Sun, Oct 26
SLA
Salta
IAD
Washington
$1,005 Roundtrip, found 3 days ago
$1,005
Roundtrip
found 3 days ago
Select LATAM Airlines Group flight, departing Wed, Oct 22 from Salta to Washington, returning Sun, Oct 26, priced at $1,005 found 3 days ago
LATAM Airlines Group
Wed, Oct 22 - Sun, Oct 26
SLA
Salta
IAD
Washington
$1,007 Roundtrip, found 3 days ago
$1,007
Roundtrip
found 3 days ago
Select LATAM Airlines Group flight, departing Wed, Oct 22 from Salta to Washington, returning Sun, Oct 26, priced at $1,007 found 3 days ago
LATAM Airlines Group
Wed, Sep 24 - Thu, Sep 25
SLA
Salta
IAD
Washington
$1,097 Roundtrip, found 4 days ago
$1,097
Roundtrip
found 4 days ago
Select LATAM Airlines Group flight, departing Wed, Sep 24 from Salta to Washington, returning Thu, Sep 25, priced at $1,097 found 4 days ago
LATAM Airlines Group
Wed, Sep 24 - Thu, Sep 25
SLA
Salta
IAD
Washington
$1,110 Roundtrip, found 4 days ago
$1,110
Roundtrip
found 4 days ago
Select LATAM Airlines Group flight, departing Wed, Sep 24 from Salta to Washington, returning Thu, Sep 25, priced at $1,110 found 4 days ago
LATAM Airlines Group
Wed, Sep 24 - Thu, Sep 25
SLA
Salta
IAD
Washington
$1,112 Roundtrip, found 4 days ago
$1,112
Roundtrip
found 4 days ago
Select LATAM Airlines Group flight, departing Wed, Sep 24 from Salta to Washington, returning Thu, Sep 25, priced at $1,112 found 4 days ago
LATAM Airlines Group
Wed, Sep 24 - Thu, Sep 25
SLA
Salta
IAD
Washington
$1,177 Roundtrip, found 4 days ago
$1,177
Roundtrip
found 4 days ago
Select LATAM Airlines Group flight, departing Wed, Sep 24 from Salta to Washington, returning Thu, Sep 25, priced at $1,177 found 4 days ago
Copa
Wed, Dec 31 - Thu, Jan 1
SLA
Salta
IAD
Washington
$1,318 Roundtrip, found 3 days ago
$1,318
Roundtrip
found 3 days ago
Select Copa flight, departing Wed, Dec 31 from Salta to Washington, returning Thu, Jan 1, priced at $1,318 found 3 days ago
Flights from Salta (SLA) to Washington (IAD)
Origin airport
Martín Miguel de Güemes Intl.
Destination airport
Washington Dulles Intl.
Roundtrip price
$990
Distance
4475 mi

Salta to Washington Flights

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

 

The best time to book a flight from Salta to Washington

Sunday is one of the best days to book for cheap flights from Salta 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 Salta 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 Salta to Washington in 2025. You can also book with separate airlines for your outbound and return journeys, from $493 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 Salta 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 Salta 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.

 

Frequently asked questions

How much does a flight from Martin Miguel de Guemes Intl. Airport (SLA) to Washington Dulles Intl. Airport (IAD) cost?
Get a cheap one-way flight from $493 or cheap return flight from $991 from Martin Miguel de Guemes Intl. Airport (SLA) 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 Martin Miguel de Guemes Intl. Airport (SLA) to Washington Dulles Intl. Airport (IAD)?
The cheapest month to fly from SLA to IAD is October, when there's less demand. Off-peak months are usually when you'll find cheap fares for travel between these airports.
What is the cheapest airline that flies from Martin Miguel de Guemes Intl. Airport (SLA) to Washington Dulles Intl. Airport (IAD)?
To find the cheapest airline flying from SLA to IAD, use Expedia's filter tool. Tailor your search based on what matters most to you, such as preferred carriers and ideal departure window. You can then sort your results by "Price (lowest to highest)" to see the cheapest flights first.
How many flights per day from Martin Miguel de Guemes Intl. Airport (SLA) to Washington Dulles Intl. Airport (IAD)?
There aren't any daily nonstop flights available from Martin Miguel de Guemes Intl. Airport (SLA) to Washington Dulles Intl. Airport (IAD). But you can book flights with layovers. Filter your search on Expedia to include one or more stops, and you'll be cruising above the clouds in no time at all.
What day of the week has the most flights from SLA to IAD?
Friday is generally the busiest day for flights, while Tuesday tends to be the quietest.* Remember that flight schedules can vary depending on a number of factors, including the time of year and carrier.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Martin Miguel de Guemes Intl. Airport (SLA) to Washington Dulles Intl. Airport (IAD)?
To land at Washington Dulles Intl. Airport (IAD) on schedule, choose a flight that takes off from Martin Miguel de Guemes Intl. Airport (SLA) before 3 PM. The chance of cancellations is 22% higher, on average, for departures after this time.**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 Martin Miguel de Guemes Intl. Airport (SLA) to Washington Dulles Intl. Airport (IAD) last-minute?
Last-minute bookings from SLA to IAD are typically more expensive. To lock in the lowest rates, start looking for flights early. That said, if your travel plans are flexible, it's possible to score a cheap fare right before you leave.
Is it cheaper to book a SLA to IAD flight and hotel package?
Opting for a SLA to IAD flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your travels in one place. Pick from our extensive range of hotels and then add car rentals, flights and activities to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Martin Miguel de Guemes Intl. Airport (SLA) to Washington Dulles Intl. Airport (IAD)?
In most instances, you can reschedule or cancel your SLA to IAD flight. However, there may be additional fees, especially if your booking was made more than 24 hours ago. Check your itinerary for the airline's guidelines and fees on flight changes, or if you want further information, head to our Customer Service portal.

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*Available to One Key members.