$107 Cheap Spirit Airlines flights from Boston to Santiago (BOS to STI)

Discover our best Spirit Airlines flight from Boston BOS to Santiago STI 

To find the best deals on flights to Boston from Santiago with Spirit Airlines, just enter your travel dates, filter by Spirit Airlines, and hit search. You’ll find flights to choose from and can sort by price, flight duration, and arrival or departure time.  

Return flights from Boston BOS to Santiago STI with Spirit Airlines 

If you’re planning a round trip, booking return flights with Spirit Airlines is usually the most cost-effective option. With airfares ranging from $237 to $244, it’s easy to find a flight that suits your budget. Prices and availability subject to change. Additional terms may apply. 

Book one-way Spirit Airlines flights from Boston BOS to Santiago STI 

A one-way ticket gives you much greater flexibility—allowing you to choose your return date, destination, and time whenever you’re ready. By booking in advance you can find great deals on one-way tickets too. Right now, a one-way Spirit Airlines flight from Boston to Santiago costs from $107. Prices and availability subject to change. Additional terms may apply. 

The easy way to find cheap flights to Santiago STI from  Boston BOS with Spirit Airlines 

To find a cheap Spirit Airlines flight from Boston BOS to Santiago STI, sort your search results by price or filter by budget. Thanks to Travelocity’s Price Match Promise, if you find a better airfare deal anywhere else within 24 hours, we’ll credit or refund the difference. 

How to find our best airfare deals on Spirit Airlines flights from Boston BOS to Santiago STI 

If you’re looking for cheap flights, it helps to be flexible when it comes to your travel dates. You’ll usually find lower cost tickets when you travel during quieter months such as February, or if you book a flight with a stopover. 

Find nonstop flights from Boston BOS to Santiago STI with Spirit Airlines 

If you’re keen to be on Santiago soil fast, don’t waste time with a stopover—filter your search results to show direct Spirit Airlines flights only. The journey takes around hour(s) min(s) – so you’ll be there before you know it. 

Flexible airline tickets for Spirit Airlines flights from Boston BOS to Santiago STI 

Make sure you’re not out of pocket if plans change by choosing a flexible ticket with penalty-free amendment and cancellation options. Use our ‘no change fee’ filter to see which flights have this option.  

There are a lot of reasons to book your flights to Santiago STI from  Boston BOS with Spirit Airlines on Travelocity 

At Travelocity our vast and up-to-the-minute inventory puts all of our best flight deals in one place. So, whether you’re traveling on business or jetting off with friends and family, you can trust Travelocity to get you there.