$472 Cheap Flights from Seattle (SEA) to Santiago Island (RAI)

View $472 flight on Sat, Dec 6, 2025Opens in a new window

Popular airlines from Seattle-Tacoma International Airport (SEA) to Santiago Island (RAI-Praia Intl.)

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Cheap Flights from Seattle to Santiago Island (SEA-RAI)

Prices were available within the past 7 days and start at $472 for one-way flights and $989 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Wed, Jan 21 - Wed, Jan 28
SEA
Seattle
RAI
Santiago
$989 Roundtrip, found 3 days ago
$989
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Wed, Jan 21 from Seattle to Santiago, returning Wed, Jan 28, priced at $989 found 3 days ago
Alaska Airlines
Wed, Jan 21 - Wed, Jan 28
SEA
Seattle
RAI
Santiago
$1,001 Roundtrip, found 3 days ago
$1,001
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Wed, Jan 21 from Seattle to Santiago, returning Wed, Jan 28, priced at $1,001 found 3 days ago
Alaska Airlines
Wed, Jan 21 - Wed, Jan 28
SEA
Seattle
RAI
Santiago
$1,048 Roundtrip, found 3 days ago
$1,048
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Wed, Jan 21 from Seattle to Santiago, returning Wed, Jan 28, priced at $1,048 found 3 days ago
Alaska Airlines
Wed, Jan 21 - Wed, Jan 28
SEA
Seattle
RAI
Santiago
$1,054 Roundtrip, found 3 days ago
$1,054
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Wed, Jan 21 from Seattle to Santiago, returning Wed, Jan 28, priced at $1,054 found 3 days ago
Alaska Airlines
Wed, Jan 21 - Wed, Jan 28
SEA
Seattle
RAI
Santiago
$1,057 Roundtrip, found 3 days ago
$1,057
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Wed, Jan 21 from Seattle to Santiago, returning Wed, Jan 28, priced at $1,057 found 3 days ago
Alaska Airlines
Wed, Jan 21 - Wed, Jan 28
SEA
Seattle
RAI
Santiago
$1,058 Roundtrip, found 3 days ago
$1,058
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Wed, Jan 21 from Seattle to Santiago, returning Wed, Jan 28, priced at $1,058 found 3 days ago
Alaska Airlines
Wed, Jan 21 - Wed, Jan 28
SEA
Seattle
RAI
Santiago
$1,060 Roundtrip, found 3 days ago
$1,060
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Wed, Jan 21 from Seattle to Santiago, returning Wed, Jan 28, priced at $1,060 found 3 days ago
Alaska Airlines
Wed, Jan 21 - Wed, Jan 28
SEA
Seattle
RAI
Santiago
$1,066 Roundtrip, found 3 days ago
$1,066
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Wed, Jan 21 from Seattle to Santiago, returning Wed, Jan 28, priced at $1,066 found 3 days ago
TAP Portugal
Wed, Nov 12 - Wed, Nov 19
SEA
Seattle
RAI
Santiago
$1,769 Roundtrip, found 2 days ago
$1,769
Roundtrip
found 2 days ago
Select TAP Portugal flight, departing Wed, Nov 12 from Seattle to Santiago, returning Wed, Nov 19, priced at $1,769 found 2 days ago
Turkish Airlines
Wed, Jan 21 - Wed, Jan 28
SEA
Seattle
RAI
Santiago
$1,774 Roundtrip, found 3 days ago
$1,774
Roundtrip
found 3 days ago
Select Turkish Airlines flight, departing Wed, Jan 21 from Seattle to Santiago, returning Wed, Jan 28, priced at $1,774 found 3 days ago

Alternative airports near Praia

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

Select flight to Praia Intl. RAI. Cheapest option available. Flights from $1,513
RAI
Praia Intl.
Cheapest
Flights from $1,513

Frequently asked questions

How much does a flight from Seattle - Tacoma Intl. Airport (SEA) to Praia Intl. Airport (RAI) cost?
Grab a cheap one-way flight from $472 or cheap return flight from $989 from Seattle - Tacoma Intl. Airport (SEA) to Praia Intl. Airport (RAI) 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 Praia Intl. Airport (RAI)?
The cheapest month to fly from SEA to RAI is January, when there's less demand. Off-peak season is usually when airlines offer better prices between these airports.
What is the cheapest airline that flies from Seattle - Tacoma Intl. Airport (SEA) to Praia Intl. Airport (RAI)?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from SEA to RAI. Then, sort your results by "Price (lowest to highest)" to score a good deal.
How many flights per day from Seattle - Tacoma Intl. Airport (SEA) to Praia Intl. Airport (RAI)?
You'll have to hop on a flight with a layover when traveling from Seattle - Tacoma Intl. Airport (SEA) to Praia Intl. Airport (RAI). Direct flights don't operate daily on this route. However, simply filter your search to include one or more stops to find the best option for your trip.
What day of the week has the most flights from SEA to RAI?
You'll usually find Tuesday the quietest day for flights, while Fridays tend to be 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 Praia Intl. Airport (RAI)?
Choose a flight from Seattle - Tacoma Intl. Airport (SEA) to Praia Intl. Airport (RAI) that leaves before 3 PM to reduce the likelihood of delays. Departures after this hour have a 22% higher chance of being canceled, on average.**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 Praia Intl. Airport (RAI) last-minute?
Holding off until just before your departure to book a ticket from SEA to RAI often results in higher prices. While you might find some last-minute discounts, they aren't always guaranteed. Be flexible with your travel plans to maximize your chances of landing a bargain.
Is it cheaper to book a SEA to RAI flight and hotel package?
You can save money by booking a SEA to RAI flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's simple to manage it all in one convenient place. Once you've selected your preferred accommodations and flights, you can add extras such as car rentals, tours and activities.
Can I cancel or change the date of my flight from Seattle - Tacoma Intl. Airport (SEA) to Praia Intl. Airport (RAI)?
If you reserved your SEA to RAI flight in the last 24 hours, you may be able to cancel or modify it without fees. Depending on the airline and the ticket type you purchased, additional charges may apply for changes after that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, visit our Customer Service portal if you'd like more information.

Travel information

Origin airport
Seattle - Tacoma Intl.
Destination airport
Praia Intl.
Roundtrip price
$988
Distance
5862 mi

Book with confidence

Seattle to Santiago Island Flights

The cheapest times to fly from Seattle to Santiago Island

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

 

The best time to book a flight from Seattle to Santiago Island

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

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 Santiago Island in 2025. You can also book with separate airlines for your outbound and return journeys, from $472 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 Santiago Island 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 Santiago Island 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 Santiago Island Flights
*Available to One Key members.