IAD - CUZ

$244 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 3/30. 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
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Everything you should know

Cheapest round-trip
$521
Typical prices: $570-$855
Multiple Airlines
Fri 3/27Sun 4/5
IAD - CUZ • 2 stops
Cheapest one-way
$244
Multiple Airlines
Mon 3/30
IAD - CUZ • 2 stops
When to travel
November
Cheapest • 52% 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

Fri, Mar 27 - Sun, Apr 5
Multiple Airlines Logo
6:45 am - 9:05 pm
IAD
-
CUZ
15h 20m2 stops
Multiple Airlines Logo
7:05 am - 5:35 am
CUZ
-
IAD
21h 30m2 stops
$521Multiple Airlines
Tue, Apr 14 - Tue, Apr 28
Avianca Logo
3:25 pm - 11:00 am
IAD
-
CUZ
20h 35m1 stop
Avianca Logo
4:45 pm - 5:35 am
CUZ
-
IAD
11h 50m1 stop
$524Avianca
Thu, Jan 29 - Thu, Feb 5
Avianca Logo
4:15 pm - 11:20 am
IAD
-
CUZ
19h 05m2 stops
Avianca Logo
5:10 pm - 1:15 pm
CUZ
-
IAD
20h 05m1 stop
$525Avianca
Thu, Mar 12 - Wed, Mar 18
Avianca Logo
5:15 pm - 11:20 am
IAD
-
CUZ
19h 05m2 stops
Avianca Logo
12:25 pm - 5:55 pm
CUZ
-
IAD
28h 30m2 stops
$527Avianca
Thu, May 14 - Thu, May 21
Multiple Airlines Logo
5:45 am - 6:25 am
IAD
-
CUZ
25h 40m3 stops
Multiple Airlines Logo
4:45 pm - 5:35 am
CUZ
-
IAD
11h 50m1 stop
$529Multiple Airlines
Sat, Feb 21 - Sat, Feb 28
Avianca Logo
4:15 pm - 11:20 am
IAD
-
CUZ
19h 05m2 stops
Avianca Logo
5:10 pm - 3:10 am
CUZ
-
IAD
34h 00m2 stops
$537Avianca
Mon, Jun 8 - Tue, Jul 7
Avianca Logo
5:35 pm - 11:00 am
IAD
-
CUZ
18h 25m2 stops
Avianca Logo
4:45 pm - 2:00 pm
CUZ
-
IAD
20h 15m1 stop
$538Avianca
Wed, Apr 1 - Sun, Apr 12
Avianca Logo
3:25 pm - 11:00 am
IAD
-
CUZ
20h 35m1 stop
Avianca Logo
12:15 pm - 3:55 pm
CUZ
-
IAD
26h 40m2 stops
$540Avianca
Tue, Apr 14 - Tue, Apr 28
Avianca Logo
5:35 pm - 11:00 am
IAD
-
CUZ
18h 25m2 stops
Avianca Logo
4:45 pm - 4:20 am
CUZ
-
IAD
34h 35m2 stops
$544Avianca
Thu, May 14 - Thu, May 21
Multiple Airlines Logo
3:25 pm - 6:25 am
IAD
-
CUZ
16h 00m2 stops
Multiple Airlines Logo
7:05 am - 3:55 pm
CUZ
-
IAD
31h 50m2 stops
$550Multiple Airlines
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.

How much is a round-trip flight from Washington, D.C. Dulles Intl Airport to Cusco?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Washington, D.C. Dulles Intl Airport to Cusco departing in March.

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 $956 respectively.

Good to know

Low seasonFebruary
Cheapest flight$244
Best time to beat the crowds but there is an average 5% increase in price.
Most popular time to fly and prices are also 24% 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 $244 for a one-way ticket and $521 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 $793 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 $654 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 1901 reviews
7.3Comfort
8.0Crew
7.0Entertainment
7.6Boarding
6.7Food
Airline reviews

LATAM’s crews are fine, but God help you if you need any customer service. Their app and website never work, with error after error. Trying to solve anything over the phone is painful, and lastly, the boarding pass LATAM gave me to board the flight with Delta was invalid and I had to purchase an emergency one-way ticket at the last minute to get home.

2.0 MediocreAnonymous, Jan 2026
LPB - LIM
Read more LATAM Airlines reviews

LATAM’s crews are fine, but God help you if you need any customer service. Their app and website never work, with error after error. Trying to solve anything over the phone is painful, and lastly, the boarding pass LATAM gave me to board the flight with Delta was invalid and I had to purchase an emergency one-way ticket at the last minute to get home.

We traveled with two young children, and it was not possible for our family to be seated together. No one offered help or assistance to organize seating so we could sit with our kids. In the end, we managed to find two seats in Economy so I could at least sit with one of them, even though I had originally paid for Comfort+. In summary, I had to downgrade my seat just to be able to sit with one of my children, which was very disappointing

I booked a flight through Kayak to Brazil I have traveled to Brazil several times before Kayak Delta or LATAM never mentioned during the booking or in the pre flight process that the visa requirements to visit Brazil have changed earlier this year. I was unaware of this change and as such never got a visa and was unable to fly from JFK to Sao Paulo Add to this that Delta allowed me to fly from Boston to JFK which they should not have as I didn’t have a visa. It has been a terrible experience and a huge loss of money

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

Boarding was late due to the company’s that cleaned the aircraft (very poorly done) and the catering company. The entertainment system was not working for this six hour flight, uncomfortable seats in business (barely any cushion or recline). The airline staff is very good but the planes are horrible and not well maintained.

Deplaning was a mess, I sat in business (seats are horrible) and the front door had a problem so we had to deplane from the rear exit. The stairs were not tall enough to reach so there was a large step down from the plane to the top of the stairs.

Staff are the rudest in the industry … awful customer service … will never fly Avianca again

Pros: we leave and arrive on time Cons: the most uncomfortable seats ever. You cant recline at all your seats. No entertainment No TVs flight attendants didn't provide even a glass of water. You have to go to back of the airplane and ask for one. I am Colombian and I remember seeing the flight attendants very neat, elegants which is or was a staple of Avianca.it was one with tennis shoes, no male up, the hair was messy... that was really odd.

Here we have another airline flying to Guatemala but doesn't have a plus or a less, just in the middle. Why? Well, first we don't have even free water Movie selection is poor Seats don't recline in some places Food selection is carb based Forgot to mention, customer service on the web is the worst. Good things; Very reliable on schedule Kind crew

Last seat of Bussines Class it does recline but passenger seating behind kept pushing since they did not have space once my seat was reclined

I like the crew they're very friendly. I don't like. on five hour flight they not offered snacks. Any drink. Not even coffee

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.

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

Information on your arrival and departure airports