$159 Cheap Flights from Boise (BOI) to Greenville (GSP)

View $159 flight on Tue, Jan 6, 2026Opens in a new window

Popular airlines from Boise Airport (BOI) to Greenville-Spartanburg Intl. Airport (GSP)

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Cheap Flights from Boise to Greenville (BOI-GSP)

Prices were available within the past 7 days and start at $159 for one-way flights and $283 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Tue, Nov 11 - Wed, Nov 12
BOI
Boise
GSP
Greenville
$283 Roundtrip, found 5 days ago
$283
Roundtrip
found 5 days ago
Select Delta flight, departing Tue, Nov 11 from Boise to Greenville, returning Wed, Nov 12, priced at $283 found 5 days ago
Delta
Thu, Oct 16 - Tue, Oct 21
BOI
Boise
GSP
Greenville
$306 Roundtrip, found 5 days ago
$306
Roundtrip
found 5 days ago
Select Delta flight, departing Thu, Oct 16 from Boise to Greenville, returning Tue, Oct 21, priced at $306 found 5 days ago
United
Tue, Sep 9 - Sat, Sep 13
BOI
Boise
GSP
Greenville
$309 Roundtrip, found 5 days ago
$309
Roundtrip
found 5 days ago
Select United flight, departing Tue, Sep 9 from Boise to Greenville, returning Sat, Sep 13, priced at $309 found 5 days ago
Delta
Sat, Nov 15 - Tue, Nov 18
BOI
Boise
GSP
Greenville
$309 Roundtrip, found 5 days ago
$309
Roundtrip
found 5 days ago
Select Delta flight, departing Sat, Nov 15 from Boise to Greenville, returning Tue, Nov 18, priced at $309 found 5 days ago
Delta
Tue, Jan 6 - Wed, Jan 14
BOI
Boise
GSP
Greenville
$317 Roundtrip, found 1 day ago
$317
Roundtrip
found 1 day ago
Select Delta flight, departing Tue, Jan 6 from Boise to Greenville, returning Wed, Jan 14, priced at $317 found 1 day ago
United
Wed, Sep 3 - Thu, Sep 4
BOI
Boise
GSP
Greenville
$318 Roundtrip, found 6 days ago
$318
Roundtrip
found 6 days ago
Select United flight, departing Wed, Sep 3 from Boise to Greenville, returning Thu, Sep 4, priced at $318 found 6 days ago
Delta
Tue, Sep 30 - Fri, Oct 3
BOI
Boise
GSP
Greenville
$320 Roundtrip, found 6 days ago
$320
Roundtrip
found 6 days ago
Select Delta flight, departing Tue, Sep 30 from Boise to Greenville, returning Fri, Oct 3, priced at $320 found 6 days ago
American Airlines
Thu, Sep 25 - Wed, Oct 1
BOI
Boise
GSP
Greenville
$326 Roundtrip, just found
$326
Roundtrip
just found
Select American Airlines flight, departing Thu, Sep 25 from Boise to Greenville, returning Wed, Oct 1, priced at $326 just found
Southwest Airlines
Tue, Oct 14 - Tue, Oct 21
BOI
Boise
GSP
Greenville
$327 Roundtrip, found 15 hours ago
$327
Roundtrip
found 15 hours ago
Select Southwest Airlines flight, departing Tue, Oct 14 from Boise to Greenville, returning Tue, Oct 21, priced at $327 found 15 hours ago
Alaska Airlines
Fri, Nov 14 - Sat, Nov 15
BOI
Boise
GSP
Greenville
$522 Roundtrip, found 4 days ago
$522
Roundtrip
found 4 days ago
Select Alaska Airlines flight, departing Fri, Nov 14 from Boise to Greenville, returning Sat, Nov 15, priced at $522 found 4 days ago

Find the cheapest month to fly from Boise (BOI) to Greenville (GSP)

August is typically the cheapest month to fly

From $263 - $948 per traveler.

Graph displaying average flight prices per month

Alternative airports near Greenville

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

Select flight to Greenville-Spartanburg Intl. GSP. Cheapest option available. Average driving time to city center is 18 minutes. Flights from $304
GSP
Greenville-Spartanburg Intl.
Cheapest
Average driving time to city center18 min
Flights from $304
Flights from Boise (BOI) to Greenville (GSP)
Origin airport
Boise
Destination airport
Greenville-Spartanburg Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Southwest Airlines, United
Roundtrip price
$282
Distance
1900 mi

Boise to Greenville Flights

The cheapest times to fly from Boise to Greenville

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

 

The best time to book a flight from Boise to Greenville

Sunday is one of the best days to book for cheap flights from Boise to Greenville: 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 Boise to Greenville

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 Boise to Greenville in 2025. You can also book with separate airlines for your outbound and return journeys, from $159 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 Boise to Greenville 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 Boise to Greenville 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 Boise Airport (BOI) to Greenville-Spartanburg Intl. Airport (GSP) cost?
Grab a cheap one-way flight from $159 or cheap return flight from $283 from Boise Airport (BOI) to Greenville-Spartanburg Intl. Airport (GSP) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from Boise Airport (BOI) to Greenville-Spartanburg Intl. Airport (GSP)?
November is the cheapest month to fly from BOI to GSP. Timing your trip outside of the busy season is often the key to scoring lower fares.
What is the cheapest airline that flies from Boise Airport (BOI) to Greenville-Spartanburg Intl. Airport (GSP)?
Use the filters on Expedia to compare different airlines and find the most affordable carrier that'll take you from BOI to GSP. Then, sort your results by "Price (lowest to highest)" to snap up a great deal.
How many flights per day from Boise Airport (BOI) to Greenville-Spartanburg Intl. Airport (GSP)?
There aren't any daily direct flights from Boise Airport (BOI) to Greenville-Spartanburg Intl. Airport (GSP). But you can opt for flights with layovers. Filter your search on Expedia to include one or more stops, and you'll be soaring above the clouds before you know it.
What day of the week has the most flights from BOI to GSP?
Friday is usually the busiest day for flights, while Tuesday is often the quietest.* Remember that flight schedules can change based on a range of factors, including the airline and season.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Boise Airport (BOI) to Greenville-Spartanburg Intl. Airport (GSP)?
To touch down at Greenville-Spartanburg Intl. Airport (GSP) on schedule, opt for a flight that takes off from Boise Airport (BOI) 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 Boise Airport (BOI) to Greenville-Spartanburg Intl. Airport (GSP) last-minute?
Booking your ticket from BOI to GSP just before your getaway is usually more expensive. However, if there's some wiggle room with your itinerary, you could bag a cheap last-minute fare.
Is it cheaper to book a BOI to GSP flight and hotel package?
You can save money by securing a BOI to GSP 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. After choosing your preferred accommodations and flights, consider adding extras including car rentals, activities and tours.
Can I cancel or change the date of my flight from Boise Airport (BOI) to Greenville-Spartanburg Intl. Airport (GSP)?
In most instances, you're able to cancel or reschedule your BOI to GSP flight. However, there may be additional charges, especially if you made your booking over 24 hours ago. Double-check your itinerary for the airline's fees and rules on flight changes, or if you need further details, go to our Customer Service portal.

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*Available to One Key members.