$219 Cheap Flights from Washington (IAD) to Cusco (CUZ)

View $219 flight on Tue, Mar 10, 2026Opens in a new window

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

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Cheap Flights from Washington to Cusco (IAD-CUZ)

Prices were available within the past 7 days and start at $219 for one-way flights and $463 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Tue, Feb 3 - Tue, Feb 10
IAD
Washington
CUZ
Cusco
$463 Roundtrip, found 6 days ago
$463
Roundtrip
found 6 days ago
Select United flight, departing Tue, Feb 3 from Washington to Cusco, returning Tue, Feb 10, priced at $463 found 6 days ago
Delta
Mon, Nov 17 - Wed, Nov 26
IAD
Washington
CUZ
Cusco
$485 Roundtrip, found 4 hours ago
$485
Roundtrip
found 4 hours ago
Select Delta flight, departing Mon, Nov 17 from Washington to Cusco, returning Wed, Nov 26, priced at $485 found 4 hours ago
Delta
Sun, Sep 14 - Thu, Sep 25
IAD
Washington
CUZ
Cusco
$495 Roundtrip, found 1 day ago
$495
Roundtrip
found 1 day ago
Select Delta flight, departing Sun, Sep 14 from Washington to Cusco, returning Thu, Sep 25, priced at $495 found 1 day ago
United
Wed, Oct 29 - Tue, Nov 4
IAD
Washington
CUZ
Cusco
$512 Roundtrip, found 10 hours ago
$512
Roundtrip
found 10 hours ago
Select United flight, departing Wed, Oct 29 from Washington to Cusco, returning Tue, Nov 4, priced at $512 found 10 hours ago
United
Tue, Feb 3 - Tue, Feb 10
IAD
Washington
CUZ
Cusco
$517 Roundtrip, found 6 days ago
$517
Roundtrip
found 6 days ago
Select United flight, departing Tue, Feb 3 from Washington to Cusco, returning Tue, Feb 10, priced at $517 found 6 days ago
Delta
Tue, Feb 3 - Tue, Feb 10
IAD
Washington
CUZ
Cusco
$521 Roundtrip, found 6 days ago
$521
Roundtrip
found 6 days ago
Select Delta flight, departing Tue, Feb 3 from Washington to Cusco, returning Tue, Feb 10, priced at $521 found 6 days ago
United
Tue, Feb 3 - Tue, Feb 10
IAD
Washington
CUZ
Cusco
$527 Roundtrip, found 6 days ago
$527
Roundtrip
found 6 days ago
Select United flight, departing Tue, Feb 3 from Washington to Cusco, returning Tue, Feb 10, priced at $527 found 6 days ago
Delta
Wed, Oct 29 - Tue, Nov 4
IAD
Washington
CUZ
Cusco
$531 Roundtrip, found 10 hours ago
$531
Roundtrip
found 10 hours ago
Select Delta flight, departing Wed, Oct 29 from Washington to Cusco, returning Tue, Nov 4, priced at $531 found 10 hours ago
avianca
Mon, Oct 27 - Mon, Nov 3
IAD
Washington
CUZ
Cusco
$564 Roundtrip, just found
$564
Roundtrip
just found
Select avianca flight, departing Mon, Oct 27 from Washington to Cusco, returning Mon, Nov 3, priced at $564 just found
LATAM Airlines Group
Thu, Sep 4 - Tue, Sep 16
IAD
Washington
CUZ
Cusco
$581 Roundtrip, found 11 hours ago
$581
Roundtrip
found 11 hours ago
Select LATAM Airlines Group flight, departing Thu, Sep 4 from Washington to Cusco, returning Tue, Sep 16, priced at $581 found 11 hours ago

Find the cheapest month to fly from Washington (IAD) to Cusco (CUZ)

March is typically the cheapest month to fly

From $428 - $749 per traveler.

Graph displaying average flight prices per month

Alternative airports near Cusco

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

Select flight to Alejandro Velasco Astete Intl. CUZ. Cheapest and Closest option available. Average driving time to city center is 4 minutes. Flights from $1,025
CUZ
Alejandro Velasco Astete Intl.
CheapestClosest
Average driving time to city center4 min
Flights from $1,025
Flights from Washington (IAD) to Cusco (CUZ)
Origin airport
Washington Dulles Intl.
Destination airport
Alejandro Velasco Astete Intl.
Airlines serving
Delta, LATAM Airlines Group, avianca
Roundtrip price
$462
Distance
3644 mi

Frequently asked questions

How much does a flight from Washington Dulles Intl. Airport (IAD) to Alejandro Velasco Astete Intl. Airport (CUZ) cost?
Discover the latest flight deals from IAD to CUZ by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from IAD to CUZ?
The cheapest flights from IAD to CUZ are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from IAD to CUZ?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from IAD to CUZ. Sort your results by "Price (lowest to highest)" to snap up a great deal.
How many flights per day from Washington Dulles Intl. Airport (IAD) to Alejandro Velasco Astete Intl. Airport (CUZ)?
You'll have to book a flight with a layover when traveling from Washington Dulles Intl. Airport (IAD) to Alejandro Velasco Astete Intl. Airport (CUZ). There are no daily direct flights on this route. However, just filter your search to include one or more stops to find an option that works for you.
What day of the week has the most flights from IAD to CUZ?
Friday is generally the busiest day for flights, while Tuesday is often the quietest.* Just remember that flight schedules can vary based on a range of factors, including the time of year and airline.*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 Alejandro Velasco Astete Intl. Airport (CUZ)?
To avoid possible delays on the Washington Dulles Intl. Airport (IAD) to Alejandro Velasco Astete Intl. Airport (CUZ) route, travel before 3 PM. Departures after this hour are 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 Washington Dulles Intl. Airport (IAD) to Alejandro Velasco Astete Intl. Airport (CUZ) last-minute?
Waiting until right before your break to book a ticket from IAD to CUZ often results in higher prices. Although you may find some last-minute deals, they're not always guaranteed. Allow some flexibility in your schedule to boost your chances of landing a bargain.
Is it cheaper to book an IAD to CUZ flight and hotel package?
You'll typically save money by securing an IAD to CUZ 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. After selecting your preferred accommodations and flights, you can add extras such as tours, activities and car rentals.
Can I cancel or change the date of my flight from Washington Dulles Intl. Airport (IAD) to Alejandro Velasco Astete Intl. Airport (CUZ)?
It's usually possible to reschedule or cancel your IAD to CUZ flight. However, for bookings made more than 24 hours ago, additional fees may apply. Check your airline's policies in your itinerary to see what changes are possible and whether any costs are involved. You'll also find more details on our Customer Service portal.

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