$989 Cheap Flights from Seattle (SEA) to Cascavel (CAC)

View $989 flight on Mon, Nov 24, 2025Opens in a new window

Popular airlines from Seattle-Tacoma International Airport (SEA) to Cascavel (CAC)

Cheap Flights from Seattle to Cascavel (SEA-CAC)

Prices were available within the past 7 days and start at $989 for one-way flights and for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Flights from Seattle (SEA) to Cascavel (CAC)
Origin airport
Seattle - Tacoma Intl.
Destination airport
Cascavel
Distance
6573 mi

Seattle to Cascavel Flights

The cheapest times to fly from Seattle to Cascavel

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 Cascavel are during the month of . You can find some of the cheapest flights from Seattle to Cascavel with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Seattle to Cascavel

Sunday is one of the best days to book for cheap flights from Seattle to Cascavel: 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 Cascavel

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 Cascavel in 2025. You can also book with separate airlines for your outbound and return journeys, from $989 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 Cascavel 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 Cascavel 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.

 

Frequently asked questions

How much does a flight from Seattle - Tacoma Intl. Airport (SEA) to Cascavel Airport (CAC) cost?
Grab a cheap one-way flight from $989 or cheap return flight from Seattle - Tacoma Intl. Airport (SEA) to Cascavel Airport (CAC) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Seattle - Tacoma Intl. Airport (SEA) to Cascavel Airport (CAC)?
The cheapest month to fly from SEA to CAC is , when there's less demand. Off-peak months are typically when airlines offer lower prices between these airports.
What is the cheapest airline that flies from Seattle - Tacoma Intl. Airport (SEA) to Cascavel Airport (CAC)?
Expedia's filter tool lets you easily compare airlines, flight times and fares all in one place. Customize the search to your preferences, then sort by "Price (lowest to highest)" to find out which carrier offers the cheapest SEA to CAC flight.
How many flights per day from Seattle - Tacoma Intl. Airport (SEA) to Cascavel Airport (CAC)?
There are no daily direct flights available from Seattle - Tacoma Intl. Airport (SEA) to Cascavel Airport (CAC). But you can book flights with layovers. Filter your search on Expedia to include one or two stops, and you'll be on your way before you know it.
What day of the week has the most flights from SEA to CAC?
You'll usually find Tuesday the quietest day for flights, while Fridays are often the busiest.* However this can vary from season to season and during peak travel times or public holidays.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Seattle - Tacoma Intl. Airport (SEA) to Cascavel Airport (CAC)?
To arrive at Cascavel Airport (CAC) without delays, choose a flight that takes off from Seattle - Tacoma Intl. Airport (SEA) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this time.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Seattle - Tacoma Intl. Airport (SEA) to Cascavel Airport (CAC) last-minute?
Last-minute fares from SEA to CAC are generally more expensive. To secure the cheapest rates, start looking for flights as early as possible. That being said, if you can play around with your travel dates, it's possible to find a cheap fare right before you leave.
Is it cheaper to book a SEA to CAC flight and hotel package?
Compared with arranging flights and hotels separately, booking a SEA to CAC flight and hotel package with Expedia could lead to significant savings. Better still, having everything in one place takes the hassle out of planning your trip. Simply secure your flights and select from our extensive range of stays, then tailor your trip with extras like activities, tours and car rentals.
Can I cancel or change the date of my flight from Seattle - Tacoma Intl. Airport (SEA) to Cascavel Airport (CAC)?
Typically, you're able to reschedule or cancel your SEA to CAC flight. However, additional charges may apply, especially if your booking was made over 24 hours ago. Double-check your itinerary for the airline's fees and guidelines on flight changes, or if you want further details, go to our Customer Service portal.

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*Available to One Key members.