IAD - CUZ

$231 Find Cheap Flights from Washington Dulles Airport to Cusco

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Dulles Intl to Cusco departing on 5/14. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult

KAYAK searches hundreds of travel sites at once for deals on flights to Cusco

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to Cusco, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to Cusco, as well as popular online travel agencies
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 22% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Flights Deals
Useful Info
Flights Deals

Cheap Flights from Dulles Intl to Cusco

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Dulles Intl to Cusco that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Recent round-trip flight deals from Dulles Intl to Cusco

KAYAK's recommended round-trip deals from the most popular airlines that fly from Dulles Intl to Cusco.
Discover the best prices for you by selecting your travel dates on KAYAK.
 Logo
4:05 am - 9:50 pmIAD-CUZ
18h 45m3 stops
 Logo
12:05 pm - 2:00 pmCUZ-IAD
24h 55m2 stops
Tue, Aug 26 - Tue, Sep 2
Avianca Logo
1:05 am - 11:00 amIAD-CUZ
34h 55m2 stops
Avianca Logo
4:45 pm - 11:45 pmCUZ-IAD
30h 00m2 stops
$496Avianca
Find Deal
Tue, Jun 24 - Mon, Jul 14
Avianca Logo
2:35 am - 11:00 amIAD-CUZ
33h 25m3 stops
Avianca Logo
4:45 pm - 5:35 amCUZ-IAD
11h 50m1 stop
$504Avianca
Find Deal
Mon, Aug 25 - Tue, Sep 2
Avianca Logo
2:35 am - 11:00 amIAD-CUZ
33h 25m3 stops
Avianca Logo
12:15 pm - 5:35 amCUZ-IAD
16h 20m1 stop
$505Avianca
Find Deal
Tue, Jun 3 - Wed, Jun 11
 Logo
7:00 am - 6:24 amIAD-CUZ
24h 24m2 stops
 Logo
9:57 pm - 5:35 amCUZ-IAD
30h 38m2 stops
Sat, Jun 14 - Sat, Jun 21
Avianca Logo
3:25 pm - 11:00 amIAD-CUZ
20h 35m1 stop
Avianca Logo
4:45 pm - 5:35 amCUZ-IAD
11h 50m1 stop
$523Avianca
Find Deal
Tue, Aug 26 - Tue, Sep 2
LATAM Airlines Logo
7:00 am - 3:55 pmIAD-CUZ
33h 55m3 stops
LATAM Airlines Logo
11:55 pm - 11:50 amCUZ-IAD
34h 55m2 stops
$618LATAM Airlines
Find Deal
Wed, Oct 1 - Thu, Oct 9
LATAM Airlines Logo
12:30 pm - 11:50 amIAD-CUZ
24h 20m2 stops
LATAM Airlines Logo
7:55 am - 9:11 amCUZ-IAD
24h 16m2 stops
$635LATAM Airlines
Find Deal
Wed, Oct 1 - Thu, Oct 9
American Airlines Logo
8:58 am - 6:24 amIAD-CUZ
22h 26m3 stops
American Airlines Logo
4:00 pm - 12:49 pmCUZ-IAD
19h 49m3 stops
$2,888American Airlines
Find Deal
Wed, Oct 1 - Thu, Oct 9
American Airlines Logo
9:14 am - 6:24 amIAD-CUZ
22h 10m3 stops
American Airlines Logo
3:47 pm - 3:15 pmCUZ-IAD
22h 28m3 stops
$2,899American Airlines
Find Deal
Fri, Aug 15 - Tue, Aug 26
Useful Info

KAYAK's insights & trends for Dulles Intl to Cusco flights

Get data-powered insights and trends into flights from Dulles Intl to Cusco to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from Washington, D.C. Dulles Intl Airport to Cusco?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Washington, D.C. Dulles Intl Airport to Cusco, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Washington, D.C. Dulles Intl Airport to Cusco is March, where tickets cost $524 (return) on average. On the other hand, the most expensive months are July and October, where the average cost of round-trip tickets is $1,021 and $971 respectively.

Good to know

Low seasonJanuary
High seasonJune
Cheapest flight$231
Best time to beat the crowds with an average 4% drop in price.
Most popular time to fly with an average 9% increase in price.
Flight from Washington Dulles Airport to Cusco

When to book flights from Dulles Intl to Cusco

Are your dates flexible? Find out the best times to travel from Dulles Intl to Cusco based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Washington Dulles Airport to Cusco flights

  • What is the cheapest flight from Washington, D.C. Dulles Intl Airport to Cusco?

    In the last 3 days, the lowest price for a flight from Washington, D.C. Dulles Intl Airport to Cusco was $231 for a one-way ticket and $462 for a round-trip.

  • Do I need a passport to fly between Washington Dulles Airport and Cusco?

    Yes, you'll most likely have to show a valid passport before boarding the plane in Washington Dulles Airport and on arrival in Cusco.

  • Which airports will I be using when flying from Washington Dulles Airport to Cusco?

    Washington Dulles Airport airport is called Washington, D.C. Dulles Intl and the only airport in Cusco is Cusco Velazco Astete.

  • Which aircraft models fly most regularly from Washington Dulles Airport to Cusco?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Washington Dulles Airport to Cusco?

    Star Alliance, and oneworld are the airline alliances operating flights between Washington Dulles Airport and Cusco, with oneworld being the most commonly used for this route.

  • Which is the best airline for flights from Washington, D.C. to Cusco, LATAM Airlines or Avianca?

    The two airlines most popular with KAYAK users for flights from Washington, D.C. to Cusco are LATAM Airlines and Avianca. With an average price for the route of $771 and an overall rating of 7.5, LATAM Airlines is the most popular choice. Avianca is also a great choice for the route, with an average price of $593 and an overall rating of 6.7.

  • How does KAYAK find such low prices on flights from Washington Dulles Airport to Cusco?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Washington Dulles Airport to Cusco.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Washington Dulles Airport to Cusco?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Cusco from Washington Dulles Airport is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Washington Dulles Airport to Cusco?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Cusco with an airline and back to Washington Dulles Airport with another airline. Booking your flights between Washington Dulles Airport and CUZ can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington Dulles Airport to Cusco?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Cusco from Washington Dulles Airport up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Top airlines flying from Dulles Intl to Cusco

 
See real verified KAYAK customer reviews for airlines flying from Washington, D.C. to Cusco. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Dulles Intl to Cusco? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.5
LATAM AirlinesOverall score based on 1767 reviews
6.7Food
7.0Entertainment
7.6Boarding
8.1Crew
7.4Comfort
Airline reviews

We didn’t have any entertainment. I tried to go online without success. The airplane was extremely cold and they didn’t have blankets.

10.0 ExcellentRita, Apr 2025UIO - LIM
Read more LATAM Airlines reviews

We didn’t have any entertainment. I tried to go online without success. The airplane was extremely cold and they didn’t have blankets.

It was good, however the airplane was really cold. We received snacks and the crew was friendly.

Delta has an outstanding service. They are courteous and punctual most of the time. The flight departed a half hour late but we arrived 15 minutes early.

Change of gate in Santiago devolved into half plus hour delay and a really tight connection in Lima

Although the flight is goof and the crew is good, the way the airline charges you for every service is ridiculous.

No entertainment but not expected. Unless you are referring to monitor that you can use. Then Al, was fine on all flights.

Friendly staff, It was the first flight out for our plane, so had to be deiced from the frost. Only delayed a few minutes,

Staff encountered friendly and helpful. Flight delayed 1 hour due to mechanical issue, but made it through Atlanta immkgration and security in plenty of time,

We boarded so late it caused us to miss time at Foz. No real information was provided to the passengers waiting.

Basic experience, we were delayed causing less time to enjoy our destination and on the way back, we boarded when the flight should have been taking off.

Late departure. When the flight arrived in Medellin the plane sat at the gate for 20 minutes waiting for a bus for us to get off the plane.

I receive a service for what I pay, so it is fair.

A few years ago long flights 6 hours or so used to have video screens and they offered ear phones. The food cart used to come and drinks. Now absolutely nothing. Avianca is as bad as Spirit Airlines. Avianca will now be my last choice when booking my next flight.

There isn't much space in-between seats and even water needs to be paid for during the flight.

We did not know about the bag fees until check in. They are way too high. It’s insane. We also had a huge delay and everything costed extra which was very annoying.

Lounge for business was closed. Boarding was rush and stand by. Seat for business is just the middle seat blocked and some more leg room.

Flew with our two children. Paid $380 to check two bags (one was overweight). They then left the bags behind on Sunday, December 21st, with all our family’s clothes and family Christmas presents. When we arrived at our destination they told us the bags had not arrived, and they thought (but didn’t know) they were still in Boston, but that there’d be a flight the next day and the bags would arrive the next day. The next day we found out there was no flight, now we’re hoping we get our bags before we fly back out. Meanwhile, trying to get any engagement or accurate information is a waste of time. The folks at the call center are just gatekeepers, who can’t connect with any departments that actually do things to solve a problem. Getting information is made deliberately difficult. My biggest regret is that I’ve had a number of awful experiences with Avianca traveling between the US and Colombia, and still let myself get suckered into buying these tickets because the schedule was great. Never again.

We were not aware carry-on bags cost extra until we arrived at the airport so, we were charged $240.00 for two small carry- on bags! There was a substantial fee for drinks and snacks. No wifi, or other entertainment was available. Waiting areas were crowded and uncomfortable.

So so, you feel like you have to pay for everything each time

please see previous response; it covers the whole travel trajectory.

Everything you need to know for your flight from Dulles Intl to Cusco

Information on your arrival and departure airports

Not what you’re looking for? Find thousands of other hotels, flights, car rentals and package deals with KAYAK.