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Cheap flights from Washington, D.C. Dulles Intl Airport to Cusco from $257

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington, D.C. Dulles Intl Airport to Cusco departing on 1/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Washington, D.C. Dulles Intl Airport to Cusco

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
12:50 pm - 11:20 amIAD-CUZ
22h 30m2 stops
Multiple Airlines Logo
5:10 pm - 11:26 amCUZ-IAD
18h 16m2 stops
$453Multiple Airlines
Find Deal
Wed, Feb 4 - Thu, Feb 12
Multiple Airlines Logo
5:15 pm - 5:50 pmIAD-CUZ
25h 35m2 stops
Multiple Airlines Logo
8:30 pm - 1:15 pmCUZ-IAD
16h 45m2 stops
$518Multiple Airlines
Find Deal
Sat, Nov 1 - Wed, Nov 5
Avianca Logo
2:35 pm - 11:20 amIAD-CUZ
20h 45m1 stop
Avianca Logo
5:10 pm - 4:25 amCUZ-IAD
11h 15m1 stop
$525Avianca
Find Deal
Wed, Feb 4 - Thu, Feb 12
Avianca Logo
2:35 pm - 11:20 amIAD-CUZ
20h 45m1 stop
Avianca Logo
5:10 pm - 4:55 pmCUZ-IAD
23h 45m2 stops
$526Avianca
Find Deal
Mon, Dec 1 - Tue, Dec 9
Avianca Logo
4:15 pm - 11:20 amIAD-CUZ
19h 05m2 stops
Avianca Logo
5:10 pm - 4:25 amCUZ-IAD
11h 15m1 stop
$527Avianca
Find Deal
Tue, Dec 2 - Tue, Dec 9
Avianca Logo
4:15 pm - 11:20 amIAD-CUZ
19h 05m2 stops
Avianca Logo
5:10 pm - 12:10 amCUZ-IAD
31h 00m3 stops
$528Avianca
Find Deal
Tue, Dec 2 - Tue, Dec 9
Multiple Airlines Logo
3:00 am - 10:26 amIAD-CUZ
31h 26m3 stops
Multiple Airlines Logo
5:10 pm - 2:55 pmCUZ-IAD
21h 45m2 stops
$529Multiple Airlines
Find Deal
Tue, Feb 3 - Thu, Feb 12
Avianca Logo
2:35 pm - 11:20 amIAD-CUZ
20h 45m1 stop
Avianca Logo
5:10 pm - 12:10 amCUZ-IAD
31h 00m3 stops
$530Avianca
Find Deal
Tue, Dec 2 - Tue, Dec 9
Multiple Airlines Logo
4:00 am - 10:21 amIAD-CUZ
31h 21m3 stops
Multiple Airlines Logo
12:25 pm - 5:25 amCUZ-IAD
16h 00m1 stop
$534Multiple Airlines
Find Deal
Mon, Mar 9 - Sun, Mar 15
Multiple Airlines Logo
4:15 pm - 9:26 pmIAD-CUZ
29h 11m3 stops
Multiple Airlines Logo
5:10 pm - 2:55 pmCUZ-IAD
21h 45m2 stops
$535Multiple Airlines
Find Deal
Wed, Feb 4 - Thu, Feb 12

Avianca flights from Washington, D.C. Dulles Intl Airport to Cusco

Our best Avianca deals on Washington, D.C. Dulles Intl Airport to Cusco flight tickets
Avianca
Feb 4
IAD2:35 pmWashington, D.C. Dulles Intl
20h 45m
1 stop
CUZ11:20 amCusco Velazco Astete
Feb 12
CUZ5:10 pmCusco Velazco Astete
11h 15m
1 stop
IAD4:25 amWashington, D.C. Dulles Intl
$525
Find similar
Avianca
Dec 1
IAD2:35 pmWashington, D.C. Dulles Intl
20h 45m
1 stop
CUZ11:20 amCusco Velazco Astete
Dec 9
CUZ5:10 pmCusco Velazco Astete
23h 45m
2 stops
IAD4:55 pmWashington, D.C. Dulles Intl
$526
Find similar
Avianca
Dec 2
IAD4:15 pmWashington, D.C. Dulles Intl
19h 05m
2 stops
CUZ11:20 amCusco Velazco Astete
Dec 9
CUZ5:10 pmCusco Velazco Astete
11h 15m
1 stop
IAD4:25 amWashington, D.C. Dulles Intl
$527
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Washington, D.C. Dulles Intl Airport to Cusco that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated October 20, 2025.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Cusco that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Cusco

IAD - CUZ

IADCUZ

Washington, D.C. Dulles Intl

Wed 2/4

12:50 pm-11:20 am

2 stops22h 30m

Cusco Velazco Astete

Thu 2/12

5:10 pm-11:26 am

2 stops18h 16m

$453

Washington, D.C.Cusco

IAD - CUZ

IADCUZ

Washington, D.C. Dulles Intl

Sat 11/1

5:15 pm-5:50 pm

2 stops25h 35m

Cusco Velazco Astete

Wed 11/5

8:30 pm-1:15 pm

2 stops16h 45m

$518

Washington, D.C.Cusco

IAD - CUZ

IADCUZ

Washington, D.C. Dulles Intl

Wed 2/4

2:35 pm-11:20 am

1 stop20h 45m

Cusco Velazco Astete

Thu 2/12

5:10 pm-4:25 am

1 stop11h 15m

$525

Washington, D.C.Cusco

IAD - CUZ

IADCUZ

Washington, D.C. Dulles Intl

Mon 12/1

2:35 pm-11:20 am

1 stop20h 45m

Cusco Velazco Astete

Tue 12/9

5:10 pm-4:55 pm

2 stops23h 45m

$526

Washington, D.C.Cusco

IAD - CUZ

IADCUZ

Washington, D.C. Dulles Intl

Tue 12/2

4:15 pm-11:20 am

2 stops19h 05m

Cusco Velazco Astete

Tue 12/9

5:10 pm-4:25 am

1 stop11h 15m

$527

Washington, D.C.Cusco

IAD - CUZ

IADCUZ

Washington, D.C. Dulles Intl

Tue 12/2

4:15 pm-11:20 am

2 stops19h 05m

Cusco Velazco Astete

Tue 12/9

5:10 pm-12:10 am

3 stops31h 00m

$528

Washington, D.C.Cusco

IAD - CUZ

IADCUZ

Washington, D.C. Dulles Intl

Tue 2/3

3:00 am-10:26 am

3 stops31h 26m

Cusco Velazco Astete

Thu 2/12

5:10 pm-2:55 pm

2 stops21h 45m

$529

Washington, D.C.Cusco

IAD - CUZ

IADCUZ

Washington, D.C. Dulles Intl

Tue 12/2

2:35 pm-11:20 am

1 stop20h 45m

Cusco Velazco Astete

Tue 12/9

5:10 pm-12:10 am

3 stops31h 00m

$530

Washington, D.C.Cusco

IAD - CUZ

IADCUZ

Washington, D.C. Dulles Intl

Mon 3/9

4:00 am-10:21 am

3 stops31h 21m

Cusco Velazco Astete

Sun 3/15

12:25 pm-5:25 am

1 stop16h 00m

$534

Washington, D.C.Cusco

IAD - CUZ

IADCUZ

Washington, D.C. Dulles Intl

Wed 2/4

4:15 pm-9:26 pm

3 stops29h 11m

Cusco Velazco Astete

Thu 2/12

5:10 pm-2:55 pm

2 stops21h 45m

$535

Flights are sorted by cheapest round-trip flights first.

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See travel insights to Cusco from

How to get the cheapest flight ticket from Washington, D.C. Dulles Intl Airport to Cusco

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Cusco?

In general, November is the cheapest month to fly from Washington, D.C. Dulles Intl Airport to Cusco. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $467. If you aren’t able to travel to Cusco during the month of November, then flying in May is also cheap. Prices for this month can be found on momondo for an average of $598.

What is the cheapest day to depart on your flight to Cusco?

The cheapest day to depart from Washington, D.C. Dulles Intl Airport to Cusco is on a Sunday when prices can be found for as low as $668. The most expensive day to fly to Cusco is Thursday, with ticket prices averaging around $855.

What is the cheapest time of day to depart on your flight to Cusco?

According to our data, the cheapest time of day to fly to Cusco is in the afternoon. momondo users have found flights departing from Washington, D.C. Dulles Intl Airport to Cusco in the afternoon for as low as $681. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. In contrast, the most expensive time of day to depart to Cusco is at noon when prices are around $907.

Can stopping save me money on Washington, D.C. Dulles Intl Airport to Cusco flights?

You could potentially save up to 42% on your flight if you consider stops on a Washington, D.C. Dulles Intl Airport to Cusco flight.

When to book flights from Washington, D.C. Dulles Intl Airport to Cusco

Are you open to changing your travel dates? Check out the ideal times to fly from Washington, D.C. Dulles Intl Airport to Cusco according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Washington, D.C. Dulles Intl Airport to Cusco (IAD to CUZ) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Washington, D.C. Dulles Intl Airport to Cusco

Direct flights

None
There are no direct flights from Washington, D.C. Dulles Intl Airport to Cusco. There are no popular flight routes from Washington, D.C. Dulles Intl Airport to Cusco.
Search flight deals

  • How far is Washington, D.C. Dulles Intl to Cusco Velazco Astete by plane?

    The straight-line distance from Washington, D.C. Dulles Intl to Cusco Velazco Astete is 3640.8 mi. Flights usually cover this in 14h 36m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from Washington, D.C. Dulles Intl Airport to Cusco Velazco Astete Airport?

    Prices for flights from Washington, D.C. Dulles Intl Airport to Cusco Velazco Astete Airport refresh daily.

  • How many operators does momondo search for flights from Washington, D.C. Dulles Intl Airport to Cusco Velazco Astete Airport?

  • How old do you have to be to fly from Washington, D.C. Dulles Intl Airport to Cusco Velazco Astete Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Washington, D.C. Dulles Intl Airport to Cusco Velazco Astete Airport.

  • What documentation or ID do you need to fly to Cusco Velazco Astete Airport?

    The necessary travel and health documents for your Cusco Velazco Astete Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from Washington, D.C. Dulles Intl Airport to Cusco?

Best airlines flying from Washington, D.C. Dulles Intl Airport to Cusco

Compare and see reviews for airlines that fly from Washington, D.C. Dulles Intl Airport to Cusco with momondo
Airline
Rating
Free Cancellation
Price
AviancaPriceFrom $372Free CancellationRating
6.6
2,457 reviews
Search Avianca flights
LATAM AirlinesPriceFrom $579Free CancellationRating
7.5
1,868 reviews
Search LATAM Airlines flights

Traveling to a place near Cusco?

Book flights to Cusco if you plan to visit one of these locations
Machu Picchu
Urubamba
Ollantaytambo

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Why should I use momondo to find a flight deal from Washington, D.C. to Cusco?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Cusco from Washington, D.C..

Can I find flights from Washington, D.C. to Cusco with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Cusco from Washington, D.C. with this policy.

How can momondo help me find flights from Washington, D.C. to Cusco?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Cusco from Washington, D.C..

I’m not ready to book a flight from Washington, D.C. to Cusco right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Washington, D.C. to Cusco flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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