Machu Picchu, an ancient Incan city, nestled in a mountainous valley with terraced fields and steep cliffs.

CA $748 Cheap Flights from Seattle (SEA) to Cusco (CUZ)

View CA $748 flight on Mon, Sep 21, 2026Opens in a new window

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

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Cheap flights from Seattle (SEA) to Cusco (CUZ)

Prices were available within the past 7 days and start at CA $748 for one-way flights and CA $1,459 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Wed, Jun 16 - Sat, Jun 26
SEA
Seattle
CUZ
Cusco
CA $1,459 Roundtrip, found 3 hours ago
CA $1,459
Roundtrip
found 3 hours ago
Select Alaska Airlines flight, departing Wed, Jun 16 from Seattle to Cusco, returning Sat, Jun 26, priced at CA $1,459 found 3 hours ago
avianca
Wed, Apr 7 - Fri, Apr 16
SEA
Seattle
CUZ
Cusco
CA $1,473 Roundtrip, found 8 hours ago
CA $1,473
Roundtrip
found 8 hours ago
Select avianca flight, departing Wed, Apr 7 from Seattle to Cusco, returning Fri, Apr 16, priced at CA $1,473 found 8 hours ago
Alaska Airlines
Wed, Apr 7 - Fri, Apr 16
SEA
Seattle
CUZ
Cusco
CA $1,474 Roundtrip, found 8 hours ago
CA $1,474
Roundtrip
found 8 hours ago
Select Alaska Airlines flight, departing Wed, Apr 7 from Seattle to Cusco, returning Fri, Apr 16, priced at CA $1,474 found 8 hours ago
JetBlue Airways
Mon, Sep 21 - Wed, Sep 30
SEA
Seattle
CUZ
Cusco
CA $1,475 Roundtrip, found 2 days ago
CA $1,475
Roundtrip
found 2 days ago
Select JetBlue Airways flight, departing Mon, Sep 21 from Seattle to Cusco, returning Wed, Sep 30, priced at CA $1,475 found 2 days ago
JetBlue Airways
Mon, Sep 21 - Wed, Sep 30
SEA
Seattle
CUZ
Cusco
CA $1,483 Roundtrip, found 2 days ago
CA $1,483
Roundtrip
found 2 days ago
Select JetBlue Airways flight, departing Mon, Sep 21 from Seattle to Cusco, returning Wed, Sep 30, priced at CA $1,483 found 2 days ago
Alaska Airlines
Wed, Apr 7 - Fri, Apr 16
SEA
Seattle
CUZ
Cusco
CA $1,489 Roundtrip, found 8 hours ago
CA $1,489
Roundtrip
found 8 hours ago
Select Alaska Airlines flight, departing Wed, Apr 7 from Seattle to Cusco, returning Fri, Apr 16, priced at CA $1,489 found 8 hours ago
Alaska Airlines
Thu, Sep 3 - Mon, Sep 7
SEA
Seattle
CUZ
Cusco
CA $1,492 Roundtrip, found 6 days ago
CA $1,492
Roundtrip
found 6 days ago
Select Alaska Airlines flight, departing Thu, Sep 3 from Seattle to Cusco, returning Mon, Sep 7, priced at CA $1,492 found 6 days ago
Alaska Airlines
Tue, Jun 1 - Thu, Jun 17
SEA
Seattle
CUZ
Cusco
CA $1,496 Roundtrip, found 3 days ago
CA $1,496
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Tue, Jun 1 from Seattle to Cusco, returning Thu, Jun 17, priced at CA $1,496 found 3 days ago
Air Canada
Tue, Jun 1 - Thu, Jun 17
SEA
Seattle
CUZ
Cusco
CA $1,510 Roundtrip, found 3 days ago
CA $1,510
Roundtrip
found 3 days ago
Select Air Canada flight, departing Tue, Jun 1 from Seattle to Cusco, returning Thu, Jun 17, priced at CA $1,510 found 3 days ago
Delta
Wed, Apr 7 - Fri, Apr 16
SEA
Seattle
CUZ
Cusco
CA $1,754 Roundtrip, found 8 hours ago
CA $1,754
Roundtrip
found 8 hours ago
Select Delta flight, departing Wed, Apr 7 from Seattle to Cusco, returning Fri, Apr 16, priced at CA $1,754 found 8 hours ago

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

November is typically the cheapest month to fly

From CA $1,360 - CA $1,742 per traveller.

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 one-way and return flights from SEA to CUZ with Expedia. 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 our cheapest fares first, and use the Price Tracking tool to receive alerts when SEA to CUZ ticket fares go up or down.
What is the cheapest month to fly from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Cusco (CUZ-Alejandro Velasco Astete Intl.)?
The cheapest months to fly from SEA to CUZ are typically during off-peak season 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 are 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.
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.
How many flights per day from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Cusco (CUZ-Alejandro Velasco Astete Intl.)?
There are approximately 34 connecting flights per day from Seattle - Tacoma Intl. (SEA) to Alejandro Velasco Astete Intl. (CUZ). Some common connection points include Los Angeles Intl. (LAX), Hartsfield-Jackson Atlanta Intl. (ATL), and Miami Intl. (MIA).
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 Intl. (SEA) to Alejandro Velasco Astete Intl. (CUZ) typically departs around 12:10 AM. This service is offered by Alaska Airlines and Avianca. This is a seasonal service active in June. An early departure like this can help you make the most of your time at your destination. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What day of the week has the most flights from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Cusco (CUZ-Alejandro Velasco Astete Intl.)?
You'll generally find the most flights from Seattle - Tacoma Intl. (SEA) to Cusco (CUZ) on a Thursday, with around 38 flights available. This gives you a good selection of options for your travel plans. Major airlines on this route include Delta, Alaska Airlines, and United. While Thursday has the most flights, the number of flights is fairly consistent throughout the week, so you'll have plenty of options on other days too.
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 Intl. (SEA) to Alejandro Velasco Astete Intl. (CUZ) are in the afternoon, from 12pm to 3pm. Many major carriers, including Delta, American Airlines and Alaska Airlines, offer flights during this window. Many travellers prefer this time as it allows for a relaxed morning before heading to the airport and an afternoon arrival at your destination.
How long does it take to fly from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Cusco (CUZ-Alejandro Velasco Astete Intl.)?
There are no nonstop flights from Seattle - Tacoma Intl. (SEA) to Alejandro Velasco Astete Intl. (CUZ). Flights with two or more stops typically take around 23 hours 48 minutes, covering a distance of approximately 8419 kilometres. Keep in mind that actual flight times can vary due to factors like routing, weather, and wind patterns, so it's always a good idea to allow for some extra travel time when planning your trip.
Can you fly business or first class from Seattle, WA (SEA) to Cusco (CUZ)?
Select the "Business class" and "First class" filters when looking for Seattle, WA (SEA) to Cusco (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 (CUZ) from Seattle, WA (SEA)?
If you're planning to travel to Cusco from Seattle - Tacoma Intl. (SEA), you typically fly into Alejandro Velasco Astete Intl. (CUZ). Some flights may connect through major hubs like Los Angeles Intl. (LAX), Hartsfield-Jackson Atlanta Intl. (ATL), or Miami Intl. (MIA) 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.) flight and hotel package 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
Air Canada, American Airlines, Delta, LATAM Airlines Group
Roundtrip price
CA $1,459
Distance
8367 km

Book with confidence

Seattle to Cusco Flights

The easy way to book your flights from Seattle to Cusco 

With Expedia, it’s simple to find and book flights to Cusco from Seattle whether you’re traveling for business or pleasure. Enter your travel dates, hit search, and choose your flight from 20 airlines that cover this route. There are nonstop flights to Alejandro Velasco Astete Intl., too.  

Choose your preferred carrier and cabin class with the advanced search tool and select your ideal departure time. Then, if you want, you can see just nonstop or refundable flights. And if you’re traveling last minute, just enter the date to check out flights from Seattle to Cusco today, tomorrow, or this week.  

 

Save dollars with cheap flights from Seattle - Tacoma Intl., SEA to Alejandro Velasco Astete Intl., CUZ 

Sort your search results by price to find great deals on your flight from Seattle to Cusco—you get all your cheapest options first. Grab yourself a bargain now—the lowest price on flights to Cusco from Seattle currently is just CA $1,459 rising to CA $1,754.  

Here are more money-saving tips: 

  • Fly in June when flight prices are normally at their lowest 
  • Book about a month to 6 weeks before you travel for the best prices to Cusco  
  • Avoid peak season and weekends when flights can cost more
  • Early morning and late-night flights are sometimes cheaper, so try varying your travel times 
  • One surefire way to save money on your flight is to book your flight and hotel together with Expedia. Sometimes, the savings are so large that the flight is basically free! 

 

Reasons to choose Expedia for your flight to Cusco from Seattle 

Whatever your destination, budget, or reason to travel, in just one quick search, you can choose from loads of flights, airlines, and cabin classes. The filters make it quick and easy to find your ideal flights, and if you choose one of the flexible options, you won’t be charged to change your flight. So book your flight to Cusco with Expedia today.

Seattle to Cusco Flights

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*Available to Expedia members.