$616 Cheap Flights from Seattle (SEA) to Ilhéus Airport (IOS)

View $616 flight on Tue, Apr 7, 2026Opens in a new window

Popular airlines from Seattle-Tacoma International Airport (SEA) to Ilhéus Airport (IOS)

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Cheap Flights from Seattle to Ilhéus Airport (SEA-IOS)

Prices were available within the past 7 days and start at $616 for one-way flights and $1,203 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

LATAM Airlines Group
Tue, Apr 7 - Tue, Apr 21
SEA
Seattle
IOS
Ilhéus
$1,203 Roundtrip, found 3 days ago
$1,203
Roundtrip
found 3 days ago
Select LATAM Airlines Group flight, departing Tue, Apr 7 from Seattle to Ilhéus, returning Tue, Apr 21, priced at $1,203 found 3 days ago
LATAM Airlines Group
Tue, Apr 7 - Tue, Apr 21
SEA
Seattle
IOS
Ilhéus
$1,218 Roundtrip, found 3 days ago
$1,218
Roundtrip
found 3 days ago
Select LATAM Airlines Group flight, departing Tue, Apr 7 from Seattle to Ilhéus, returning Tue, Apr 21, priced at $1,218 found 3 days ago
LATAM Airlines Group
Tue, Apr 7 - Tue, Apr 21
SEA
Seattle
IOS
Ilhéus
$1,218 Roundtrip, found 3 days ago
$1,218
Roundtrip
found 3 days ago
Select LATAM Airlines Group flight, departing Tue, Apr 7 from Seattle to Ilhéus, returning Tue, Apr 21, priced at $1,218 found 3 days ago
LATAM Airlines Group
Wed, Dec 3 - Wed, Dec 10
SEA
Seattle
IOS
Ilhéus
$1,223 Roundtrip, found 3 days ago
$1,223
Roundtrip
found 3 days ago
Select LATAM Airlines Group flight, departing Wed, Dec 3 from Seattle to Ilhéus, returning Wed, Dec 10, priced at $1,223 found 3 days ago
LATAM Airlines Group
Wed, Dec 3 - Wed, Dec 10
SEA
Seattle
IOS
Ilhéus
$1,232 Roundtrip, found 3 days ago
$1,232
Roundtrip
found 3 days ago
Select LATAM Airlines Group flight, departing Wed, Dec 3 from Seattle to Ilhéus, returning Wed, Dec 10, priced at $1,232 found 3 days ago
LATAM Airlines Group
Wed, Dec 3 - Wed, Dec 10
SEA
Seattle
IOS
Ilhéus
$1,236 Roundtrip, found 3 days ago
$1,236
Roundtrip
found 3 days ago
Select LATAM Airlines Group flight, departing Wed, Dec 3 from Seattle to Ilhéus, returning Wed, Dec 10, priced at $1,236 found 3 days ago
Air Canada
Tue, Apr 7 - Tue, Apr 21
SEA
Seattle
IOS
Ilhéus
$1,287 Roundtrip, found 3 days ago
$1,287
Roundtrip
found 3 days ago
Select Air Canada flight, departing Tue, Apr 7 from Seattle to Ilhéus, returning Tue, Apr 21, priced at $1,287 found 3 days ago
Delta
Wed, Dec 10 - Sun, Dec 14
SEA
Seattle
IOS
Ilhéus
$1,310 Roundtrip, found 4 days ago
$1,310
Roundtrip
found 4 days ago
Select Delta flight, departing Wed, Dec 10 from Seattle to Ilhéus, returning Sun, Dec 14, priced at $1,310 found 4 days ago
Alaska Airlines
Wed, Dec 3 - Wed, Dec 10
SEA
Seattle
IOS
Ilhéus
$1,344 Roundtrip, found 3 days ago
$1,344
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Wed, Dec 3 from Seattle to Ilhéus, returning Wed, Dec 10, priced at $1,344 found 3 days ago
GOL Linhas Aereas S.A.
Tue, Apr 7 - Tue, Apr 21
SEA
Seattle
IOS
Ilhéus
$2,415 Roundtrip, found 3 days ago
$2,415
Roundtrip
found 3 days ago
Select GOL Linhas Aereas S.A. flight, departing Tue, Apr 7 from Seattle to Ilhéus, returning Tue, Apr 21, priced at $2,415 found 3 days ago

Frequently asked questions

How much does a flight from Seattle - Tacoma Intl. Airport (SEA) to Ilheus Airport (IOS) cost?
Get a cheap one-way flight from $616 or cheap return flight from $1,203 from Seattle - Tacoma Intl. Airport (SEA) to Ilheus Airport (IOS) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Seattle - Tacoma Intl. Airport (SEA) to Ilheus Airport (IOS)?
The cheapest month to fly from SEA to IOS is April, when there's less demand. Off-peak months are generally when you'll find lower airfares between these airports.
What is the cheapest airline that flies from Seattle - Tacoma Intl. Airport (SEA) to Ilheus Airport (IOS)?
Use the filters on Expedia to compare airlines and find the most affordable carrier that'll fly you from SEA to IOS. Then, sort your results by "Price (lowest to highest)" to score the best deal available.
How many flights per day from Seattle - Tacoma Intl. Airport (SEA) to Ilheus Airport (IOS)?
There aren't any daily direct flights from Seattle - Tacoma Intl. Airport (SEA) to Ilheus Airport (IOS). But you can book flights with layovers. Filter your search results on Expedia to include one or two stops, and you'll be soaring above the clouds before you know it.
What day of the week has the most flights from SEA to IOS?
Generally you'll have the most choice when it comes to flights on a Friday. Tuesdays are often the quietest.* However, this can vary based on the airline, season and other factors.*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 Ilheus Airport (IOS)?
To avoid possible delays on the Seattle - Tacoma Intl. Airport (SEA) to Ilheus Airport (IOS) route, aim to travel before 3 PM. Flights after this time have a 22% higher chance of cancellation.**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 Ilheus Airport (IOS) last-minute?
Booking your ticket from SEA to IOS shortly before your trip is generally more expensive. However, if you're flexible with your travel dates and times, you could score a cheap last-minute fare.
Is it cheaper to book a SEA to IOS flight and hotel package?
You can save money by booking a SEA to IOS flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's easy to manage everything in one convenient place. Once you've chosen your ideal flights and accommodations, consider adding extras like activities, tours and car rentals.
Can I cancel or change the date of my flight from Seattle - Tacoma Intl. Airport (SEA) to Ilheus Airport (IOS)?
Typically, it's possible to cancel or reschedule your SEA to IOS flight. However, if the booking was made more than 24 hours ago, additional fees may apply. Refer to your airline's policies in your itinerary to see what changes are allowed and whether any costs are involved. You'll also find more information on our Customer Service portal.

Travel information

Origin airport
Seattle - Tacoma Intl.
Destination airport
Ilhéus Airport
Roundtrip price
$1,202
Distance
6661 mi

Book with confidence

Seattle to Ilhéus Airport Flights

The cheapest times to fly from Seattle to Ilhéus Airport

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

 

The best time to book a flight from Seattle to Ilhéus Airport

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

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 Ilhéus Airport in 2025. You can also book with separate airlines for your outbound and return journeys, from $616 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 Ilhéus Airport 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 Ilhéus Airport 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 Ilhéus Airport Flights

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*Available to One Key members.