Flight Deals from Washington to Peru from $364

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Cheapest fares and when to fly, by destination city — select a row for the details.

Cheapest RT	Cheapest OW	Good Deal Price	Best Time to Fly	Best Day to Fly	When to Book
$607	$364	$640	Midday	Sunday	6 weeks
Cheapest round-trip found on Priceline in the last 8 days. $61 below the typical $668 round-trip on this route. Lowest one-way found in the last 8 days. The typical one-way fare is $529. A round-trip at or under $640 is a good deal on this route right now. 75% of the fares we found cost more; only a quarter cost less. Sunday departures average $642 on this route, the lowest of any weekday. $53 less than the average weekday, which is $695. Midday departures average $670 on this route, the lowest of any time of day. $27 less than the average departure, which is $697. Fares on this route are lowest when booked about 6 weeks before departure. See all flights to Lima →
$905	$495	$949	Afternoon	Sunday	6 weeks
Cheapest round-trip found on Priceline in the last 8 days. $117 below the typical $1,022 round-trip on this route. Lowest one-way found in the last 8 days. The typical one-way fare is $681. A round-trip at or under $949 is a good deal on this route right now. 75% of the fares we found cost more; only a quarter cost less. Sunday departures average $954 for flights to this destination, the lowest of any weekday. $77 less than the average weekday, which is $1,031. Afternoon departures average $978 on this route, the lowest of any time of day. $67 less than the average departure, which is $1,045. Fares to this destination are lowest when booked about 6 weeks before departure. See all flights to Cusco →
$877	$405	$912	Evening	Sunday	6 weeks
Cheapest round-trip found on Priceline in the last 8 days. $184 below the typical $1,061 round-trip on this route. Lowest one-way found in the last 8 days. The typical one-way fare is $661. A round-trip at or under $912 is a good deal on this route right now. 75% of the fares we found cost more; only a quarter cost less. Sunday departures average $967 for flights to this destination, the lowest of any weekday. $78 less than the average weekday, which is $1,045. Evening departures average $1,004 on this route, the lowest of any time of day. $75 less than the average departure, which is $1,079. Fares to this destination are lowest when booked about 6 weeks before departure. See all flights to Arequipa →
$827	$425	$837	Morning	Sunday	6 weeks
Cheapest round-trip found on Priceline in the last 8 days. $27 below the typical $854 round-trip on this route. Lowest one-way found in the last 8 days. The typical one-way fare is $729. A round-trip at or under $837 is a good deal on this route right now. 75% of the fares we found cost more; only a quarter cost less. Sunday departures average $867 for flights to this destination, the lowest of any weekday. $70 less than the average weekday, which is $937. Morning departures average $848 on this route, the lowest of any time of day. $170 less than the average departure, which is $1,018. Fares to this destination are lowest when booked about 6 weeks before departure. See all flights to Cajamarca →
$902	$440	$946	Early Morning	Sunday	6 weeks
Cheapest round-trip found on Priceline in the last 8 days. $183 below the typical $1,085 round-trip on this route. Lowest one-way found in the last 8 days. The typical one-way fare is $1,110. A round-trip at or under $946 is a good deal on this route right now. 75% of the fares we found cost more; only a quarter cost less. Sunday departures average $1,150 for flights to this destination, the lowest of any weekday. $93 less than the average weekday, which is $1,243. Early Morning departures average $1,034 on this route, the lowest of any time of day. $315 less than the average departure, which is $1,349. Fares to this destination are lowest when booked about 6 weeks before departure. See all flights to Iquitos →
$781	$365	$783	Midday	Sunday	6 weeks
Cheapest round-trip found on Priceline in the last 8 days. $60 below the typical $841 round-trip on this route. Lowest one-way found in the last 8 days. The typical one-way fare is $942. A round-trip at or under $783 is a good deal on this route right now. 75% of the fares we found cost more; only a quarter cost less. Sunday departures average $827 for flights to this destination, the lowest of any weekday. $67 less than the average weekday, which is $894. Midday departures average $839 on this route, the lowest of any time of day. $69 less than the average departure, which is $908. Fares to this destination are lowest when booked about 6 weeks before departure. See all flights to Chiclayo →

Methodology: learn how we calculate these figures

The best day to fly and how far ahead to book shown in this table are built from the prices Priceline customers actually paid for flights to this destination over the past 12 months or more.

Where a route has too few bookings to fill a figure, we borrow the shape from a group of routes with similar price behavior and fit it to the fares booked on that route.

Because past fares don’t reflect today’s market, we then adjust the historical prices for current conditions such as inflation and fuel costs, using the round-trip fares found in recent searches.

The cheapest round-trip and one-way fares, the good-deal price and the best time of day to fly come directly from the fares found in recent searches, not from historical bookings.

Best Peru Hotel + Flight Packages

Round-trip flight from Washington

WAS to LIM

ibis Lima Larco Miraflores

Lima, Avenida Larco 1140, Miraflores

8.3670 Reviews3-Star Hotel

^$834/person

$1,668 total

Incl. Flight + Hotel

Round-trip flight from Washington

WAS to CUZ

La Casa de Campo

Cusco, Tandapata N°296

7.940 Reviews3-Star Hotel

^$1,262/person

$2,524 total

Incl. Flight + Hotel

Round-trip flight from Washington

WAS to AQP

Econunay Hostels

Arequipa, Calle Jerusalén 605

8.6158 Reviews0-Star Hotel

^$915/person

$1,830 total

Incl. Flight + Hotel

Round-trip flight from Washington

WAS to CJA

Hostal Tintaya

Cajamarca, Av. Vía De Evitamiento Sur 2014

0-Star Hotel

^$882/person

$1,763 total

Incl. Flight + Hotel

Round-trip flight from Washington

WAS to IQT

Hospedaje Neydita

Iquitos, Calle Morona 979

8.6316 Reviews0-Star Hotel

^$1,986/person

$3,972 total

Incl. Flight + Hotel

Round-trip flight from Washington

WAS to CIX

Silvana Hostal

Chiclayo, Alfredo Lapoint 1058

8.29 Reviews2-Star Hotel

^$774/person

$1,548 total

Incl. Flight + Hotel

Best Peru Hotel + Flight + Car Packages

Round-trip flight from Washington

WAS to CJA

Hostal Tintaya

Cajamarca, Av. Vía De Evitamiento Sur 2014

0-Star Hotel

Rental car included

Pick-up in CJA

^$882/person

$1,763 total

Incl. Flight + Hotel + Car

Round-trip flight from Washington

WAS to IQT

Hospedaje Neydita

Iquitos, Calle Morona 979

8.6316 Reviews0-Star Hotel

Rental car included

Pick-up in IQT

^$768/person

$1,536 total

Incl. Flight + Hotel + Car

Round-trip flight from Washington

WAS to CIX

Silvana Hostal

Chiclayo, Alfredo Lapoint 1058

8.29 Reviews2-Star Hotel

Rental car included

Pick-up in CIX

^$774/person

$1,548 total

Incl. Flight + Hotel + Car

Round-trip flight from Washington

WAS to CUZ

La Casa de Campo

Cusco, Tandapata N°296

7.940 Reviews3-Star Hotel

Rental car included

Pick-up in CUZ

^$1,045/person

$2,089 total

Incl. Flight + Hotel + Car

Round-trip flight from Washington

WAS to AQP

Econunay Hostels

Arequipa, Calle Jerusalén 605

8.6158 Reviews0-Star Hotel

Rental car included

Pick-up in AQP

^$1,113/person

$2,225 total

Incl. Flight + Hotel + Car

When is the cheapest time to fly?

Cheapest in late September at about $800

Fares from Washington to Peru are lowest in late September, around $800, and September is the cheapest month overall, averaging $816. They peak in late December at about $1,094, $294 more than the low. The yearly average is $912.

Show the data

When is the cheapest time to fly?
Month	Average fare	Early month	Late month
January	$867	$909	$828
February	$858	$840	$880
March	$932	$912	$951
April	$905	$934	$876
May	$879	$856	$900
June	$974	$940	$1,007
July	$1,008	$1,017	$1,000
August	$942	$974	$912
September	$816	$832	$800
October	$837	$825	$848
November	$900	$882	$919
December	$1,030	$962	$1,094

How far in advance should I book?

Cheapest about 6 weeks out at $837

Book about 6 weeks before departure for the best fares from Washington to Peru, around $837. Booking in the final days before the flight costs about $973, $136 more. Booking six months ahead runs about $1,161.

Show the data

How far in advance should I book? (selected points, lowest and highest included)
Days before departure	Average fare
180 days	$1,161
172 days	$1,166
164 days	$1,171
156 days	$1,164
148 days	$1,142
140 days	$1,099
132 days	$1,060
124 days	$1,028
116 days	$1,003
108 days	$986
100 days	$966
92 days	$941
84 days	$911
76 days	$882
68 days	$864
2mo	$852
52 days	$844
44 days	$839
43 days	$837
36 days	$837
28 days	$847
20 days	$867
12 days	$909
4 days	$956
0 days	$973

What's the cheapest day of the week to fly?

Sunday is the cheapest day of the week to fly from Washington to Peru. At $902 it is 8% cheaper than the average day. Monday is the most expensive day, 7% above average.

Show the data

What's the cheapest day of the week to fly?
Day	Average fare
Sun	$902
Mon	$1,040
Tue	$929
Wed	$944
Thu	$1,009
Fri	$1,017
Sat	$992

When is the best time of day to fly?

Early morning (12am - 5am) is the cheapest time of day to fly from Washington to Peru. At $810 it is 25% cheaper than the average time. Late night (9pm - 12am) is the most expensive time, 61% above average.

Show the data

When is the best time of day to fly?
Time of day	Average fare
Early Morning	$810
Morning	$947
Midday	$988
Afternoon	$1,030
Evening	$984
Late Night	$1,753

What do round-trip flights from Washington to Peru cost?

Share of fares in each price range.

Show the data

What do round-trip flights from Washington to Peru cost?
Price range	Share of fares
$500 to $750	15%
$750 to $1,000	47%
$1,000 to $1,250	29%
$1,250 to $1,500	4%
$1,500 to $1,750	1%
$1,750 to $2,000	1%
$2,000 and up	2%

Methodology: learn how we calculate these charts

The charts “When is the cheapest time to fly?”, “How far in advance should I book?” and “What's the cheapest day of the week to fly?” are built from the prices Priceline customers actually paid for flights on this route over the past 12 months or more.

Where a route has too few bookings to fill every point in a chart, we borrow the shape of the curve from a group of routes with similar price behavior and fit it to the fares booked on this route.

Because past fares don’t reflect today’s market, we then adjust the historical prices for current conditions such as inflation and fuel costs, using the round-trip fares found in recent searches on this route.

The charts “What do round-trip flights from Washington to Peru cost?” and “When is the best time of day to fly?” are calculated directly from the fares found in recent searches, not from historical bookings.

Frequently Asked Questions

Everything you need to know about flying from Washington to Peru.

When is the cheapest time to fly from Washington to Peru?

The cheapest months to fly from Washington to Lima are September, October, and February, with the lowest fares of the year landing in late September. December is the priciest month, peaking in late December, followed by July.

Methodology

These seasonal fares look at the busiest city-to-city routes between the two places (up to four, chosen by scheduled flights) and at the seasonal fare curve Priceline's own archive provides for each route. Months are ranked by how far each month's average fare sits above or below that route's yearly average, taking the middle value across the routes, so one expensive route cannot dominate.

How far in advance should I book flights from Washington to Peru?

For flights from Washington to Peru, the best time to book is about 6 weeks before departure, based on the Washington–Lima pair. Fares are lowest between 4 and 7 weeks out, and they rise when booking very early — around 23 weeks ahead they are at their priciest.

Methodology

This booking-window guidance looks at the busiest city-to-city routes between the two places (up to four, chosen by scheduled flights) and at the booking-window fare curve Priceline's own archive provides for each route. The best time to book is the middle value of those routes' cheapest lead times.

What are the most popular cities to visit in Peru?

Lima is the main gateway and a hub for food and history. Cusco is the base for Machu Picchu and the Sacred Valley. Arequipa draws visitors for its colonial center and nearby Colca Canyon. Iquitos offers Amazon access.

When is the best time of year to visit Peru?

For Peru, May to September is the dry season in the Andes and best for Cusco and Machu Picchu, but it is also the busiest and most expensive. April and October offer a good balance of drier weather, lower prices and fewer crowds, especially in Lima and the Sacred Valley.

How do I get to Washington Dulles International Airport from the city center?

To reach Washington Dulles International Airport from downtown Washington, D.C., the Silver Line Metrorail is the most popular and economical option, with trains running every 15 minutes and a direct ride of about 47 minutes for roughly $2–3. Taxis are available 24 hours a day and take 30–60 minutes depending on traffic, while ride-share services like Uber and Lyft offer curbside pickup and on-demand booking. Public buses, including the Silver Line Express bus to the metro station and Metrobus Route 5A, provide lower-cost alternatives but often involve transfers and longer travel times. For driving, the airport is about 26 miles west of downtown, with rental cars and private car services available, though parking adds extra cost.

References

IAD Airport Transportation | Black Car, SUV & Van | SuperShuttlesupershuttle.com · Published May 4, 2026
Book Flights to Washington DC | Turkish Airlines ®turkishairlines.com
Flüge nach Washington DC | Turkish Airlines ® | Stadtführerturkishairlines.com
How to get from Dulles Airport (IAD) to Washington, DC | Uberuber.com · Published Sep 11, 2026
Washington Dulles Airport (IAD) to Washington DC Trains | 7-Day Timetablerome2rio.com · Published Aug 20, 2026
Transfer Washington City Center to Dulles Airport (IAD) in Washington Dc, USA - 20 minutes to 1 hour - 138165P370 - Trip Canvasaaa.com
flydulles.com - Portuguese (Português)flydulles.com
flydulles.com - Simplified Chinese (简体中文)flydulles.com

Flight Deals from Washington to Peru from $364

Good to Know

Best Peru Hotel + Flight Packages

Best Peru Hotel + Flight + Car Packages

When is the cheapest time to fly?

How far in advance should I book?

What's the cheapest day of the week to fly?

When is the best time of day to fly?

What do round-trip flights from Washington to Peru cost?

Frequently Asked Questions

When is the cheapest time to fly from Washington to Peru?

How far in advance should I book flights from Washington to Peru?

What are the most popular cities to visit in Peru?

When is the best time of year to visit Peru?

How do I get to Washington Dulles International Airport from the city center?

Flights to Peru