$640 Cheap Flights from Denver (DEN) to Santiago Island (RAI)

View $640 flight on Thu, Sep 25, 2025Opens in a new window

Popular airlines from Denver Intl. Airport (DEN) to Santiago Island (RAI-Praia Intl.)

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Cheap Flights from Denver to Santiago Island (DEN-RAI)

Prices were available within the past 7 days and start at $640 for one-way flights and $1,532 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Lufthansa
Tue, Sep 16 - Sun, Sep 21
DEN
Denver
RAI
Santiago
$1,532 Roundtrip, found 6 days ago
$1,532
Roundtrip
found 6 days ago
Select Lufthansa flight, departing Tue, Sep 16 from Denver to Santiago, returning Sun, Sep 21, priced at $1,532 found 6 days ago
Lufthansa
Tue, Sep 16 - Sun, Sep 21
DEN
Denver
RAI
Santiago
$1,539 Roundtrip, found 6 days ago
$1,539
Roundtrip
found 6 days ago
Select Lufthansa flight, departing Tue, Sep 16 from Denver to Santiago, returning Sun, Sep 21, priced at $1,539 found 6 days ago
Lufthansa
Sat, Nov 1 - Fri, Nov 7
DEN
Denver
RAI
Santiago
$1,559 Roundtrip, found 2 days ago
$1,559
Roundtrip
found 2 days ago
Select Lufthansa flight, departing Sat, Nov 1 from Denver to Santiago, returning Fri, Nov 7, priced at $1,559 found 2 days ago
JetBlue Airways
Fri, Dec 12 - Fri, Dec 19
DEN
Denver
RAI
Santiago
$1,565 Roundtrip, found 1 day ago
$1,565
Roundtrip
found 1 day ago
Select JetBlue Airways flight, departing Fri, Dec 12 from Denver to Santiago, returning Fri, Dec 19, priced at $1,565 found 1 day ago
United
Thu, Sep 25 - Wed, Oct 1
DEN
Denver
RAI
Santiago
$1,609 Roundtrip, found 20 hours ago
$1,609
Roundtrip
found 20 hours ago
Select United flight, departing Thu, Sep 25 from Denver to Santiago, returning Wed, Oct 1, priced at $1,609 found 20 hours ago
United
Thu, Sep 25 - Wed, Oct 1
DEN
Denver
RAI
Santiago
$1,610 Roundtrip, found 20 hours ago
$1,610
Roundtrip
found 20 hours ago
Select United flight, departing Thu, Sep 25 from Denver to Santiago, returning Wed, Oct 1, priced at $1,610 found 20 hours ago
Air Canada
Thu, Sep 25 - Wed, Oct 1
DEN
Denver
RAI
Santiago
$1,634 Roundtrip, found 20 hours ago
$1,634
Roundtrip
found 20 hours ago
Select Air Canada flight, departing Thu, Sep 25 from Denver to Santiago, returning Wed, Oct 1, priced at $1,634 found 20 hours ago
Lufthansa
Thu, Sep 25 - Wed, Oct 1
DEN
Denver
RAI
Santiago
$1,673 Roundtrip, found 20 hours ago
$1,673
Roundtrip
found 20 hours ago
Select Lufthansa flight, departing Thu, Sep 25 from Denver to Santiago, returning Wed, Oct 1, priced at $1,673 found 20 hours ago
United
Thu, Sep 25 - Wed, Oct 1
DEN
Denver
RAI
Santiago
$1,680 Roundtrip, found 20 hours ago
$1,680
Roundtrip
found 20 hours ago
Select United flight, departing Thu, Sep 25 from Denver to Santiago, returning Wed, Oct 1, priced at $1,680 found 20 hours ago
TAP Portugal
Sat, Nov 1 - Fri, Nov 7
DEN
Denver
RAI
Santiago
$1,990 Roundtrip, found 2 days ago
$1,990
Roundtrip
found 2 days ago
Select TAP Portugal flight, departing Sat, Nov 1 from Denver to Santiago, returning Fri, Nov 7, priced at $1,990 found 2 days ago
Flights from Denver (DEN) to Santiago Island (RAI)
Origin airport
Denver Intl.
Destination airport
Praia Intl.
Airlines serving
TAP Portugal
Roundtrip price
$1,532
Distance
5099 mi

Denver to Santiago Island Flights

The cheapest times to fly from Denver 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 Denver to Santiago Island are during the month of September. You can find some of the cheapest flights from Denver to Santiago Island with Expedia's search tool and vast selection of airlines.

 

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

Sunday is one of the best days to book for cheap flights from Denver 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 Denver 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 Denver to Santiago Island in 2025. You can also book with separate airlines for your outbound and return journeys, from $640 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 Denver 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 Denver 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.

 

Frequently asked questions

How much does a flight from Denver Intl. Airport (DEN) to Praia Intl. Airport (RAI) cost?
Discover the latest flight deals from DEN to RAI by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from DEN to RAI?
The cheapest flights from DEN to RAI are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from DEN to RAI?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from DEN to RAI. Sort your results by "Price (lowest to highest)" to snap up a great deal.
How many flights per day from Denver Intl. Airport (DEN) to Praia Intl. Airport (RAI)?
Direct flights from Denver Intl. Airport (DEN) to Praia Intl. Airport (RAI) aren't available daily, so you'll need to take a flight with a layover. Explore your options with Expedia's filters. Enter your dates and select either "1 Stop" or "2+ Stops."
What day of the week has the most flights from DEN to RAI?
Generally you'll find the widest variety of flight choices on a Friday. Tuesdays tend to be the quietest.* However, this can change depending on the time of year, airline 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 Denver Intl. Airport (DEN) to Praia Intl. Airport (RAI)?
To land at Praia Intl. Airport (RAI) on schedule, choose a flight that leaves from Denver Intl. Airport (DEN) 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 Denver Intl. Airport (DEN) to Praia Intl. Airport (RAI) last-minute?
Booking your plane ticket from DEN to RAI just before your trip is usually more expensive. However, if you're flexible with your itinerary, you could bag a cheap last-minute fare.
Is it cheaper to book a DEN to RAI flight and hotel package?
You'll typically save money by securing a DEN 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 easy to manage everything in one convenient place. Once you've chosen your preferred accommodations and flights, you can add extras such as car rentals, activities and tours.
Can I cancel or change the date of my flight from Denver Intl. Airport (DEN) to Praia Intl. Airport (RAI)?
Typically, you can cancel or modify your DEN to RAI flight. However, there may be additional charges, especially if you made your booking more than 24 hours ago. Double-check your itinerary for the airline's fees and guidelines on flight changes, or if you'd like more details, visit our Customer Service portal.

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*Available to One Key members.