IAD - CUZ

$239 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 1/21. 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
1 adult, Economy, 0 bags

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 24% 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.

Everything you should know

Cheapest round-trip
$476
Overall average: $589
Multiple Airlines
Wed 5/6Mon 5/18
IAD - CUZ • 2 stops
Cheapest one-way
$239
Multiple Airlines
Wed 1/21
IAD - CUZ • 3 stops
When to travel
November
Cheapest • 51% price drop
October
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Cusco!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Dulles Intl to Cusco (IAD-CUZ)

 
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.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Dulles Intl to Cusco

Wed, May 6 - Mon, May 18
Multiple Airlines Logo
3:25 pm - 6:24 amIAD-CUZ
15h 59m2 stops
Multiple Airlines Logo
7:57 am - 2:00 pmCUZ-IAD
29h 03m2 stops
$476Multiple Airlines
Find Deal
Sun, Feb 1 - Sun, Feb 8
Avianca Logo
2:35 pm - 11:20 amIAD-CUZ
20h 45m1 stop
Avianca Logo
12:25 pm - 4:25 amCUZ-IAD
16h 00m1 stop
$525Avianca
Find Deal
Sun, Feb 1 - Sun, Feb 8
Avianca Logo
4:15 pm - 11:20 amIAD-CUZ
19h 05m2 stops
Avianca Logo
12:25 pm - 4:25 amCUZ-IAD
16h 00m1 stop
$526Avianca
Find Deal
Sun, Feb 1 - Sun, Feb 8
Avianca Logo
4:15 pm - 11:20 amIAD-CUZ
19h 05m2 stops
Avianca Logo
12:25 pm - 2:55 pmCUZ-IAD
26h 30m2 stops
$528Avianca
Find Deal
Wed, May 6 - Mon, May 18
Multiple Airlines Logo
4:05 am - 7:24 amIAD-CUZ
28h 19m3 stops
Multiple Airlines Logo
9:47 pm - 2:45 amCUZ-IAD
27h 58m3 stops
$529Multiple Airlines
Find Deal
Thu, Mar 12 - Sun, Mar 22
Multiple Airlines Logo
4:00 am - 10:46 amIAD-CUZ
31h 46m3 stops
Multiple Airlines Logo
12:25 pm - 3:55 pmCUZ-IAD
26h 30m2 stops
$535Multiple Airlines
Find Deal
Fri, Feb 20 - Sat, Feb 28
Avianca Logo
2:35 pm - 11:20 amIAD-CUZ
20h 45m1 stop
Avianca Logo
5:10 pm - 3:10 amCUZ-IAD
34h 00m2 stops
$536Avianca
Find Deal
Wed, Feb 18 - Wed, Feb 25
Avianca Logo
2:35 pm - 11:20 amIAD-CUZ
20h 45m1 stop
Avianca Logo
12:25 pm - 4:55 pmCUZ-IAD
28h 30m2 stops
$541Avianca
Find Deal
Sat, Jan 31 - Sun, Feb 8
Avianca Logo
4:30 am - 11:20 amIAD-CUZ
30h 50m2 stops
Avianca Logo
12:25 pm - 4:25 amCUZ-IAD
16h 00m1 stop
$543Avianca
Find Deal
Sat, Jan 31 - Sun, Feb 8
Avianca Logo
4:30 am - 11:20 amIAD-CUZ
30h 50m2 stops
Avianca Logo
12:25 pm - 2:55 pmCUZ-IAD
26h 30m2 stops
$545Avianca
Find Deal
Booking Insights

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 November, where tickets cost $375 (return) on average. On the other hand, the most expensive months are December and June, where the average cost of round-trip tickets is $1,670 and $925 respectively.

Good to know

Low seasonFebruary
Cheapest flight$239
Best time to beat the crowds with an average 2% drop in price.
Most popular time to fly and prices are also 23% lower on average.
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 $239 for a one-way ticket and $476 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 is the only airline alliance operating flights between Washington Dulles Airport and Cusco.

  • 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 $777 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 $653 and an overall rating of 6.6.

  • 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.

Reviews of the 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 1882 reviews
8.0Crew
7.3Comfort
7.0Entertainment
6.7Food
7.6Boarding
Airline reviews

Latam may be the worst airline in the world, far worse than even the lowest of low cost airlines in the USA. I wasted hours trying to PAY THEM TO CHECK A BAG! Then they misled me at the terminal, sent me through the wrong security line, the list goes on and on... Just absolutely terrible in every way. Avoid at all costs.

2.0 MediocreBenjamin, Oct 2025MIA - LIM
Read more LATAM Airlines reviews

Latam may be the worst airline in the world, far worse than even the lowest of low cost airlines in the USA. I wasted hours trying to PAY THEM TO CHECK A BAG! Then they misled me at the terminal, sent me through the wrong security line, the list goes on and on... Just absolutely terrible in every way. Avoid at all costs.

we were missing our luggage, trying to find someone to have any empathy was pretty much not happening....

Poor handling of carry on luggage. We had a 8 hour stop in Santiago, are over 70 and, in spite of paying full fare they wanted to send carry on to luggage hold. No empathy. We had to show that several group 4/5 passengers were not sending their carry ons before they finally let Is keep them. Very poor .

The flight was late. Please do not delay next time.

I couldn't travel, now I can't get a refund and to change the date I have to pay an absurd fine.

My biggest complaint is the comfort. I am not tall and there was no legroom. It was very uncomfortable. During my transfer in Sao Paola, the flight was slightly delayed so boarding was confusing because there were no instructions in English.

Horrible the worst airlines I have ever flown. Cancelled flight with no choices and when contacted them they were not helpful

I never got this flight. You sent me to Chile!!! And from Chile I got the other flight to São Paulo... I've arrived 7h latter than I was supposed to arrive because of Delta delays.

Because the flight was late, we lost the connection to Brazil. You, Delta delayed, and you Delta anticipated the door closing in 15 min from Miami to GRU. Why? It caused a lot of stress! I almost could not see my mother in law alive because of your delay.

Boarding was done by woman who insisted on strict standing in line policy; food was ok; entertainment minimal

Not even water is offered on the flight. You cannot lean back on the seats and the seats are so narrow you can’t avoid rubbing elbows with the person next to you.

I couldnt recline the seat. Other than that crew was very attentive and helpful. Thsnk you

I had to go to the boarding counter for them to enter my return flight as it’s not with Avianca. There was a long queue as there were lots of people being called to the counter.

This low cost airline looks and fells more like a local bus. In a 6 hour flight not being able to recline a seat is torture. The only thing available with no charge is a glass of water provided by, mostly, rude staff. Our luggage didn’t arrive

Did not fly with Pakistan International Airlines. Have never flown with Pakistan International Airlines.

Boarding, crew were excellent, food was ok and entertainment need to improve

The seats were uncomfortable and barely reclined at all. Very little leg room despite being business class. The crew was friendly and the food was good. Had to use my own phone for in-flight entertainment.

Avianca is not what it used to be. So disappointing

Boarding was excessively slow. They do it by groups in a way that it doesn’t make sense. After business class , ppl that need assistance and any other priority group they should have ppl board from the back to the front. First rows 20+. Then 15+. Then 10, etc. having ppl sitting in the back board last makes no sense. The libe backame long as soon as ppl on rows 10 or so where told to board. The line went all the way up the ramp and tunnel for 25 mins.

Seats are very tight even in Plus, no complimentary snacks or beverage

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

Information on your arrival and departure airports