$276 Cheap Flights from Cusco (CUZ) to Washington (IAD)

View $276 flight on Tue, Nov 18, 2025Opens in a new window

Popular airlines from Alejandro Velasco Astete Intl. Airport (CUZ) to Washington Dulles Intl. Airport (IAD)

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Cheap Flights from Cusco to Washington (CUZ-IAD)

Prices were available within the past 7 days and start at $276 for one-way flights and $511 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Thu, Oct 23 - Thu, Jan 22
CUZ
Cusco
IAD
Washington
$511 Roundtrip, found 3 hours ago
$511
Roundtrip
found 3 hours ago
Select Delta flight, departing Thu, Oct 23 from Cusco to Washington, returning Thu, Jan 22, priced at $511 found 3 hours ago
LATAM Airlines Group
Thu, Oct 23 - Thu, Jan 22
CUZ
Cusco
IAD
Washington
$528 Roundtrip, found 3 hours ago
$528
Roundtrip
found 3 hours ago
Select LATAM Airlines Group flight, departing Thu, Oct 23 from Cusco to Washington, returning Thu, Jan 22, priced at $528 found 3 hours ago
Delta
Wed, Oct 22 - Thu, Oct 23
CUZ
Cusco
IAD
Washington
$557 Roundtrip, found 19 hours ago
$557
Roundtrip
found 19 hours ago
Select Delta flight, departing Wed, Oct 22 from Cusco to Washington, returning Thu, Oct 23, priced at $557 found 19 hours ago
Delta
Wed, Oct 22 - Wed, Jan 21
CUZ
Cusco
IAD
Washington
$557 Roundtrip, found 19 hours ago
$557
Roundtrip
found 19 hours ago
Select Delta flight, departing Wed, Oct 22 from Cusco to Washington, returning Wed, Jan 21, priced at $557 found 19 hours ago
LATAM Airlines Group
Thu, Oct 30 - Thu, Nov 13
CUZ
Cusco
IAD
Washington
$563 Roundtrip, found 4 days ago
$563
Roundtrip
found 4 days ago
Select LATAM Airlines Group flight, departing Thu, Oct 30 from Cusco to Washington, returning Thu, Nov 13, priced at $563 found 4 days ago
Delta
Wed, Oct 22 - Wed, Jan 14
CUZ
Cusco
IAD
Washington
$570 Roundtrip, found 19 hours ago
$570
Roundtrip
found 19 hours ago
Select Delta flight, departing Wed, Oct 22 from Cusco to Washington, returning Wed, Jan 14, priced at $570 found 19 hours ago
Delta
Wed, Oct 22 - Sat, Jan 10
CUZ
Cusco
IAD
Washington
$581 Roundtrip, found 3 hours ago
$581
Roundtrip
found 3 hours ago
Select Delta flight, departing Wed, Oct 22 from Cusco to Washington, returning Sat, Jan 10, priced at $581 found 3 hours ago
LATAM Airlines Group
Wed, Oct 29 - Thu, Nov 13
CUZ
Cusco
IAD
Washington
$586 Roundtrip, found 4 days ago
$586
Roundtrip
found 4 days ago
Select LATAM Airlines Group flight, departing Wed, Oct 29 from Cusco to Washington, returning Thu, Nov 13, priced at $586 found 4 days ago
avianca
Wed, Oct 22 - Wed, Jan 21
CUZ
Cusco
IAD
Washington
$647 Roundtrip, found 19 hours ago
$647
Roundtrip
found 19 hours ago
Select avianca flight, departing Wed, Oct 22 from Cusco to Washington, returning Wed, Jan 21, priced at $647 found 19 hours ago
Aeromexico
Wed, Nov 12 - Fri, Nov 21
CUZ
Cusco
IAD
Washington
$889 Roundtrip, found 2 days ago
$889
Roundtrip
found 2 days ago
Select Aeromexico flight, departing Wed, Nov 12 from Cusco to Washington, returning Fri, Nov 21, priced at $889 found 2 days ago

Frequently asked questions

How much does a flight from Alejandro Velasco Astete Intl. Airport (CUZ) to Washington Dulles Intl. Airport (IAD) cost?
Snag a cheap one-way flight from $276 or cheap return flight from $511 from Alejandro Velasco Astete Intl. Airport (CUZ) 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 Alejandro Velasco Astete Intl. Airport (CUZ) to Washington Dulles Intl. Airport (IAD)?
The cheapest month to fly from CUZ to IAD is October, when demand is low. Off-peak months are typically when airlines offer lower prices between these airports.
What is the cheapest airline that flies from Alejandro Velasco Astete Intl. Airport (CUZ) to Washington Dulles Intl. Airport (IAD)?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from CUZ to IAD. Then, sort your results by "Price (lowest to highest)" to pick up a good deal.
How many flights per day from Alejandro Velasco Astete Intl. Airport (CUZ) to Washington Dulles Intl. Airport (IAD)?
Direct flights from Alejandro Velasco Astete Intl. Airport (CUZ) to Washington Dulles Intl. Airport (IAD) aren't available daily, so you'll need to take a flight with a layover. Explore your options with our filter tool. Enter your dates and click on either "1 Stop" or "2+ Stops."
What day of the week has the most flights from CUZ to IAD?
Generally you'll find the largest variety of flight choices on a Friday. Tuesdays are often the quietest.* But this can vary depending on the time of year, carrier 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 Alejandro Velasco Astete Intl. Airport (CUZ) to Washington Dulles Intl. Airport (IAD)?
Book a flight from Alejandro Velasco Astete Intl. Airport (CUZ) to Washington Dulles Intl. Airport (IAD) that leaves before 3 PM to reduce the risk of delays and cancellations. Departures after this hour are on average 22% more likely to be canceled.**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 Alejandro Velasco Astete Intl. Airport (CUZ) to Washington Dulles Intl. Airport (IAD) last-minute?
Holding off until right before your break to book a ticket from CUZ to IAD generally means paying more. While you may come across some last-minute discounts, they aren't always guaranteed. Be flexible with your travel plans for a better chance of scoring a bargain.
Is it cheaper to book a CUZ to IAD flight and hotel package?
You'll generally save money by securing a CUZ 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. After choosing your preferred accommodations and flights, consider adding extras such as tours, activities and car rentals.
Can I cancel or change the date of my flight from Alejandro Velasco Astete Intl. Airport (CUZ) to Washington Dulles Intl. Airport (IAD)?
Usually, it's possible to reschedule or cancel your CUZ to IAD flight. However, if it's been more than 24 hours since booking, additional fees may apply. Refer to your airline's policies in your itinerary to see what changes are possible and whether any costs are involved. You'll also find further details on our Customer Service portal.

Travel information

Travel information

Origin airport
Alejandro Velasco Astete Intl.
Destination airport
Washington Dulles Intl.
Airlines serving
Aeromexico, Delta, LATAM Airlines Group, avianca
Roundtrip price
$510
Distance
3644 mi

Book with confidence

Book with confidence

Cusco to Washington Flights

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

 

The best time to book a flight from Cusco to Washington

Sunday is one of the best days to book for cheap flights from Cusco 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 Cusco 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 Cusco to Washington in 2025. You can also book with separate airlines for your outbound and return journeys, from $276 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 Cusco 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 Cusco 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.

 

Cusco to Washington Flights

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Explore a world of travel with Expedia

*Available to One Key members.