IAD - CUZ

$303 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 9/11. 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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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
$595
Typical prices: $369-$845
Avianca
Sat 11/14Sun 11/22
IAD - CUZ • 1 stop
Cheapest one-way
$303
Multiple Airlines
Fri 9/11
IAD - CUZ • 2 stops
Top airlines
Cheapest • from $595 (round-trip)
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Dulles Intl and Cusco. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 49% price drop
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

Sat, Nov 14 - Sun, Nov 22
Avianca Logo
2:35 pm - 11:20 am
IAD
-
CUZ
20h 45m
1 stop
Avianca Logo
5:10 pm - 1:15 pm
CUZ
-
IAD
20h 05m
1 stop
$595Avianca
Tue, Oct 27 - Wed, Nov 11
Avianca Logo
5:15 pm - 11:20 am
IAD
-
CUZ
19h 05m
2 stops
Avianca Logo
12:25 pm - 4:30 am
CUZ
-
IAD
16h 05m
1 stop
$596Avianca
Sat, Aug 15 - Wed, Aug 19
Multiple Airlines Logo
5:35 pm - 7:50 pm
IAD
-
CUZ
27h 15m
2 stops
Multiple Airlines Logo
9:10 pm - 5:20 am
CUZ
-
IAD
31h 10m
2 stops
$599Multiple Airlines
Mon, Nov 2 - Mon, Nov 16
Multiple Airlines Logo
5:45 am - 9:00 pm
IAD
-
CUZ
15h 15m
2 stops
Multiple Airlines Logo
5:55 pm - 1:15 pm
CUZ
-
IAD
19h 20m
2 stops
$603Multiple Airlines
Sun, Aug 16 - Wed, Aug 26
Multiple Airlines Logo
6:50 am - 10:15 pm
IAD
-
CUZ
16h 25m
2 stops
Multiple Airlines Logo
10:00 pm - 2:15 pm
CUZ
-
IAD
15h 15m
2 stops
$617Multiple Airlines
Thu, Oct 29 - Tue, Nov 3
Avianca Logo
3:35 pm - 11:20 am
IAD
-
CUZ
20h 45m
1 stop
Avianca Logo
5:10 pm - 4:25 am
CUZ
-
IAD
11h 15m
1 stop
$618Avianca
Tue, Oct 27 - Wed, Nov 11
Avianca Logo
4:00 am - 11:20 am
IAD
-
CUZ
32h 20m
2 stops
Avianca Logo
12:25 pm - 4:55 pm
CUZ
-
IAD
28h 30m
2 stops
$622Avianca
Sun, Oct 18 - Thu, Oct 22
Avianca Logo
3:35 pm - 11:20 am
IAD
-
CUZ
20h 45m
1 stop
Avianca Logo
5:10 pm - 5:20 am
CUZ
-
IAD
11h 10m
1 stop
$624Avianca
Mon, Nov 30 - Wed, Dec 16
Avianca Logo
4:15 pm - 11:20 am
IAD
-
CUZ
19h 05m
2 stops
Avianca Logo
5:10 pm - 4:30 am
CUZ
-
IAD
11h 20m
1 stop
$625Avianca
Sat, Sep 26 - Mon, Oct 12
Multiple Airlines Logo
6:50 am - 7:05 am
IAD
-
CUZ
25h 15m
2 stops
Multiple Airlines Logo
8:25 pm - 6:15 pm
CUZ
-
IAD
20h 50m
2 stops
$628Multiple 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.

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 July, where the average cost of round-trip tickets is $1,238 and $1,066 respectively.

Good to know

Low seasonJanuary
Cheapest flight$303
Best time to beat the crowds with an average 16% drop in price.
Most popular time to fly and prices are also 18% 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 5 days, the lowest price for a flight from Washington, D.C. Dulles Intl Airport to Cusco was $303 for a one-way ticket and $595 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 $753 and an overall rating of 7.4, LATAM Airlines is the most popular choice. Avianca is also a great choice for the route, with an average price of $658 and an overall rating of 6.5.

  • 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.
7.4
LATAM AirlinesOverall score based on 1941 reviews
7.3Comfort
6.7Food
8.0Crew
7.5Boarding
7.0Entertainment
Airline reviews

LATAM clearly does not have well-established policies re: luggage for international flights to Lima followed by domestic flights within Peru (in my case, from Lima to Cuzco). On the way in, they forced me to pay $50 in Lima to check my second carry on bag (the three bags were included in the fare from JFK to Lima). On the return trip, they told me at check in that I would have to pay $50 again at the gate (she said they couldn't accept the money at check in) Then, at the gate, they initially told me I would have to pay several hundred dollars to check the big bag through to JFK. I protested, and showed them a print out of an email saying the checked bag was included between LIM and JFK. Than a second woman showed up, and told me I wouldn't have to pay anything at all -- which was great news, of course -- but that means I was incorrectly charged the extra $50 on the incoming flight. Basically, just a mess. Also, their website is completely non-functional -- it was very cleear that all the airport staff knew the website was nonfunctional, too.

6.0 GoodRachel, Jun 2026
CUZ - LIM
Read more LATAM Airlines reviews

LATAM clearly does not have well-established policies re: luggage for international flights to Lima followed by domestic flights within Peru (in my case, from Lima to Cuzco). On the way in, they forced me to pay $50 in Lima to check my second carry on bag (the three bags were included in the fare from JFK to Lima). On the return trip, they told me at check in that I would have to pay $50 again at the gate (she said they couldn't accept the money at check in) Then, at the gate, they initially told me I would have to pay several hundred dollars to check the big bag through to JFK. I protested, and showed them a print out of an email saying the checked bag was included between LIM and JFK. Than a second woman showed up, and told me I wouldn't have to pay anything at all -- which was great news, of course -- but that means I was incorrectly charged the extra $50 on the incoming flight. Basically, just a mess. Also, their website is completely non-functional -- it was very cleear that all the airport staff knew the website was nonfunctional, too.

Good check in process Poor information on payments at Lima airport

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.

I was in the last row and they sent me to check in my luggage last minute after boarding. I had to go through the crowd.

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

Only complaint is that the entertainment system wasn’t working on our seats and some others.

Routine and on time flight with pleasant stewards and decent food. Nice experience!

You delayed my trip three days for no reason other than your lack of preparedness, did not offer any compensation, including food or a bed. I couldn’t trust you so I moved up my return flight and lost another day at the end of my trip to hopefully make sure I make my next flight. I will never fly LATAM again. You have the worse accountability and reliability and clearly do not care that your clients have lives and what it cost to fly to another country.

No air in the middle rows. Had a hard time breathing. Was dying of heat.

It was a good experience, the flight was a little too long & the food was ok

The worst experience I've ever had because the "people" @ Avianca wouldn't let me fly because they said I needed a round trip ticket

Seating was tight. Seats don't recline. Initial flight was cancelled. Lost two days of vacation.

It was delayed and I lost my connection flight to Cali and I missed my Mom's funeral

I upgraded to businesses class. Because of that the flight was comfortable.

I actually upgraded to the medium level of seats from basic and even doing that it may have been physically the most uncomfortable flight I have ever had. They packed everyone like is a train to death camp. It was a red eye so I hoped to get some sleep but it was physically impossible to find a comfortable way to rest. I met other folks on the same flight and they said the same thing. It was an utterly miserable flight and if I have any other options I will never fly with them again

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

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

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

I paid over $200 for seat selection for these flights and I was still stuck on long international flights in seats that do not recline and do not have the head support cushion. At this point basically all airlines have those for all seats, and this really took me by surprise and made me not ever want to travel on Avianca. The Kayak agent who called me for the seat selection (Donovan) was courteous, but it seems the system for this doesn't work. I was offered seat selection, for the $200+, but without being able to see what I was selecting, with no guarantee where I'd be...and then I still ended up in terrible seats. On my way to, and especially after, a very intense business trip, the seat situation really soured my experience.

They charged me $120 to check one bag and then charged me another $120 for a carryon. Ridiculous!

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

Information on your arrival and departure airports