$295 Cheap Flights from Seattle (SEA) to Cusco (CUZ)

View $295 flight on Mon, Oct 19, 2026Opens in a new window

Popular airlines from Seattle-Tacoma International Airport (SEA) to Alejandro Velasco Astete Intl. Airport (CUZ)

  • Be in the know

    Get alerts if flight prices drop or rise*

  • Book smarter

    Save up to 30% on select hotels after you book a flight*

  • Earn twice

    Earn your airline miles on top of our OneKeyCash
    Learn about One Key

Cheap Flights from Seattle to Cusco (SEA-CUZ)

Prices were available within the past 7 days and start at $295 for one-way flights and $563 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Tue, Oct 20 - Wed, Oct 28
SEA
Seattle
CUZ
Cusco
$563 Roundtrip, found 1 day ago
$563
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Tue, Oct 20 from Seattle to Cusco, returning Wed, Oct 28, priced at $563 found 1 day ago
Alaska Airlines
Thu, Oct 15 - Tue, Oct 20
SEA
Seattle
CUZ
Cusco
$574 Roundtrip, found 2 days ago
$574
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Thu, Oct 15 from Seattle to Cusco, returning Tue, Oct 20, priced at $574 found 2 days ago
Alaska Airlines
Tue, Oct 20 - Wed, Oct 28
SEA
Seattle
CUZ
Cusco
$575 Roundtrip, found 1 day ago
$575
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Tue, Oct 20 from Seattle to Cusco, returning Wed, Oct 28, priced at $575 found 1 day ago
Alaska Airlines
Thu, Oct 15 - Tue, Oct 20
SEA
Seattle
CUZ
Cusco
$584 Roundtrip, found 2 days ago
$584
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Thu, Oct 15 from Seattle to Cusco, returning Tue, Oct 20, priced at $584 found 2 days ago
Alaska Airlines
Thu, Oct 15 - Tue, Oct 20
SEA
Seattle
CUZ
Cusco
$586 Roundtrip, found 2 days ago
$586
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Thu, Oct 15 from Seattle to Cusco, returning Tue, Oct 20, priced at $586 found 2 days ago
Alaska Airlines
Tue, Oct 6 - Tue, Oct 13
SEA
Seattle
CUZ
Cusco
$591 Roundtrip, found 2 hours ago
$591
Roundtrip
found 2 hours ago
Select Alaska Airlines flight, departing Tue, Oct 6 from Seattle to Cusco, returning Tue, Oct 13, priced at $591 found 2 hours ago
JetBlue Airways
Tue, Oct 20 - Wed, Oct 28
SEA
Seattle
CUZ
Cusco
$603 Roundtrip, found 1 day ago
$603
Roundtrip
found 1 day ago
Select JetBlue Airways flight, departing Tue, Oct 20 from Seattle to Cusco, returning Wed, Oct 28, priced at $603 found 1 day ago
avianca
Sun, Aug 23 - Sun, Sep 6
SEA
Seattle
CUZ
Cusco
$899 Roundtrip, found 6 days ago
$899
Roundtrip
found 6 days ago
Select avianca flight, departing Sun, Aug 23 from Seattle to Cusco, returning Sun, Sep 6, priced at $899 found 6 days ago
LATAM Airlines Group
Mon, Aug 31 - Tue, Sep 22
SEA
Seattle
CUZ
Cusco
$1,099 Roundtrip, found 2 days ago
$1,099
Roundtrip
found 2 days ago
Select LATAM Airlines Group flight, departing Mon, Aug 31 from Seattle to Cusco, returning Tue, Sep 22, priced at $1,099 found 2 days ago
Delta
Mon, Oct 12 - Mon, Oct 26
SEA
Seattle
CUZ
Cusco
$1,119 Roundtrip, just found
$1,119
Roundtrip
just found
Select Delta flight, departing Mon, Oct 12 from Seattle to Cusco, returning Mon, Oct 26, priced at $1,119 just found

The Annual Vacation Sale

Members save up to 40% on hotels and homes. Plan this year’s big trip and save.
Book now

Alternative airports near Cusco

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Alejandro Velasco Astete Intl. CUZ. Cheapest and Closest option available. Average driving time to city center is 4 minutes. Flights from $1,332
CUZ
Alejandro Velasco Astete Intl.
CheapestClosest
Average driving time to city center4 min
Flights from $1,332

Find the cheapest month to fly from Seattle (SEA) to Cusco (CUZ)

January is typically the cheapest month to fly

From $835 - $1,790 per traveler.

Frequently asked questions

How much does a flight from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Cusco (CUZ-Alejandro Velasco Astete Intl.) cost?
You can find cheap one-way flights from $295 and cheap return flights from $563 Seattle, WA (SEA-Seattle - Tacoma Intl.) to Cusco (CUZ-Alejandro Velasco Astete Intl.) with Expedia. One-way flights usually range from $489 to $2425, and return flights typically cost between $1182 and $4982. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when Seattle, WA (SEA-Seattle - Tacoma Intl.) to Cusco (CUZ-Alejandro Velasco Astete Intl.) ticket fares go up or down.*Typical price ranges based on flights available on Expedia in the last year. Prices include multi-airline options.
What is the cheapest month to fly from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Cusco (CUZ-Alejandro Velasco Astete Intl.)?
The cheapest month to fly from SEA to CUZ is October when demand is low. Traveling in off-peak or shoulder months is usually a good way to secure cheap tickets, just remember to avoid flying during holidays if you're able to. Use the calendar view in your search to see which months have low fares on this route.
Which airlines fly direct from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Cusco (CUZ-Alejandro Velasco Astete Intl.)?
Enter SEA to CUZ and your travel dates, then apply the 'Nonstop' filter to see only direct flights.
What is the cheapest airline that flies from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Cusco (CUZ-Alejandro Velasco Astete Intl.)?
Air Canada is one of the cheapest airlines offering connecting flights from Seattle (SEA) to Cusco (CUZ), with round-trip tickets starting from around $889 with a layover in Pearson Intl. (YYZ). Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.*Prices based on flights available on Expedia in the last year.
How do I find cheap flights from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Cusco (CUZ-Alejandro Velasco Astete Intl.)?
To find a cheap flight from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Cusco (CUZ-Alejandro Velasco Astete Intl.), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best time to fly from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Cusco (CUZ-Alejandro Velasco Astete Intl.)?
The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.
What is the earliest flight from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Cusco (CUZ-Alejandro Velasco Astete Intl.)?
The earliest flight from Seattle - Tacoma International Airport (SEA) to Alejandro Velasco Astete International Airport (CUZ) typically departs at around 12:10 AM, operated by Alaska Airlines and Avianca. This is a seasonal service active in June, allowing you to start your adventure in Cusco early in the day. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What are the most popular departure times for flights from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Cusco (CUZ-Alejandro Velasco Astete Intl.)?
The most popular departure times for flights from Seattle - Tacoma International Airport (SEA) to Alejandro Velasco Astete International Airport (CUZ) are in the afternoon, from 12pm to 3pm. About 36% of passengers prefer this time window. Many major carriers, including Delta Air Lines, LATAM Airlines, and United Airlines, offer flights during this window. This timing works well because it allows you to travel after a full morning of activities.
How long does it take to fly from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Cusco (CUZ-Alejandro Velasco Astete Intl.)?
Flights from SEA to CUZ with one stop typically take around 22 hours 20 minutes, covering approximately 5,231 miles. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Cusco (CUZ-Alejandro Velasco Astete Intl.)?
Select the "Business class" and "First class" filters when looking for SEA to CUZ flights on Expedia. This is the easiest way to compare prices, routes and flight times for your trip.
How do I earn miles on a Seattle, WA (SEA-Seattle - Tacoma Intl.) to Cusco (CUZ-Alejandro Velasco Astete Intl.) flight with Expedia?
It's easy to earn miles on a Seattle, WA (SEA-Seattle - Tacoma Intl.) to Cusco (CUZ-Alejandro Velasco Astete Intl.) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Cusco from Seattle - Tacoma Intl. (SEA)?
If you're planning to travel to Cusco from Seattle - Tacoma Intl. (SEA), you can fly typically into Alejandro Velasco Astete Intl. (CUZ) Some flights may connect through major hubs like Los Angeles Intl. (LAX), Hartsfield-Jackson Atlanta Intl. (ATL), John F. Kennedy Intl. (JFK) before reaching Cusco. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Cusco (CUZ-Alejandro Velasco Astete Intl.) at the last minute?
Typically, booking a last minute flight from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Cusco (CUZ-Alejandro Velasco Astete Intl.) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Seattle, WA (SEA-Seattle - Tacoma Intl.) to Cusco (CUZ-Alejandro Velasco Astete Intl.) flight and hotel package?
Securing a Seattle, WA (SEA-Seattle - Tacoma Intl.) to Cusco (CUZ-Alejandro Velasco Astete Intl.) Cusco Vacation Packages is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Cusco (CUZ-Alejandro Velasco Astete Intl.)?
If you booked your Seattle, WA (SEA-Seattle - Tacoma Intl.) to Cusco (CUZ-Alejandro Velasco Astete Intl.) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Seattle - Tacoma Intl.
Destination airport
Alejandro Velasco Astete Intl.
Airlines serving
American Airlines, Delta, LATAM Airlines Group, avianca
Roundtrip price
$563
Distance
5229 mi

Book with confidence

Seattle to Cusco Flights

The cheapest times to fly from Seattle to Cusco

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Seattle to Cusco are during the month of October. You can find some of the cheapest flights from Seattle to Cusco with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Seattle to Cusco

Sunday is one of the best days to book for cheap flights from Seattle to Cusco: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Seattle to Cusco

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Seattle to Cusco in 2026. You can also book with separate airlines for your outbound and return journeys, from $295 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Seattle to Cusco flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Seattle to Cusco airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Seattle to Cusco Flights

*Flight schedules are subject to change.

Explore a world of travel with Expedia

*Available to One Key members.