$134 Cheap Flights from Greenville (GSP) to Boise (BOI)

View $134 flight on Wed, Jan 7, 2026Opens in a new window

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

    notification illustration

    Be in the know

    Get alerts if flight prices drop or rise*
    deals illustration

    Book smarter

    Save up to 30% on select hotels after you book a flight*
    trophy illustration

    Earn twice

    Earn your airline miles on top of our OneKeyCash
    Learn about One Key

Cheap Flights from Greenville to Boise (GSP-BOI)

Prices were available within the past 7 days and start at $134 for one-way flights and $257 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Southwest Airlines
Tue, Dec 16 - Wed, Dec 17
GSP
Greenville
BOI
Boise
$257 Roundtrip, found 6 days ago
$257
Roundtrip
found 6 days ago
Select Southwest Airlines flight, departing Tue, Dec 16 from Greenville to Boise, returning Wed, Dec 17, priced at $257 found 6 days ago
Southwest Airlines
Wed, Jan 7 - Tue, Jan 13
GSP
Greenville
BOI
Boise
$262 Roundtrip, found 6 days ago
$262
Roundtrip
found 6 days ago
Select Southwest Airlines flight, departing Wed, Jan 7 from Greenville to Boise, returning Tue, Jan 13, priced at $262 found 6 days ago
Southwest Airlines
Wed, Jan 7 - Tue, Jan 13
GSP
Greenville
BOI
Boise
$267 Roundtrip, found 6 days ago
$267
Roundtrip
found 6 days ago
Select Southwest Airlines flight, departing Wed, Jan 7 from Greenville to Boise, returning Tue, Jan 13, priced at $267 found 6 days ago
American Airlines
Tue, Dec 16 - Wed, Dec 17
GSP
Greenville
BOI
Boise
$272 Roundtrip, found 6 days ago
$272
Roundtrip
found 6 days ago
Select American Airlines flight, departing Tue, Dec 16 from Greenville to Boise, returning Wed, Dec 17, priced at $272 found 6 days ago
American Airlines
Wed, Jan 7 - Tue, Jan 13
GSP
Greenville
BOI
Boise
$275 Roundtrip, found 6 days ago
$275
Roundtrip
found 6 days ago
Select American Airlines flight, departing Wed, Jan 7 from Greenville to Boise, returning Tue, Jan 13, priced at $275 found 6 days ago
Delta
Wed, Jan 7 - Tue, Jan 13
GSP
Greenville
BOI
Boise
$280 Roundtrip, found 6 days ago
$280
Roundtrip
found 6 days ago
Select Delta flight, departing Wed, Jan 7 from Greenville to Boise, returning Tue, Jan 13, priced at $280 found 6 days ago
American Airlines
Wed, Jan 7 - Tue, Jan 13
GSP
Greenville
BOI
Boise
$287 Roundtrip, found 6 days ago
$287
Roundtrip
found 6 days ago
Select American Airlines flight, departing Wed, Jan 7 from Greenville to Boise, returning Tue, Jan 13, priced at $287 found 6 days ago
Delta
Sat, Jan 10 - Tue, Jan 13
GSP
Greenville
BOI
Boise
$292 Roundtrip, found 6 days ago
$292
Roundtrip
found 6 days ago
Select Delta flight, departing Sat, Jan 10 from Greenville to Boise, returning Tue, Jan 13, priced at $292 found 6 days ago
United
Wed, Jan 7 - Tue, Jan 13
GSP
Greenville
BOI
Boise
$295 Roundtrip, found 6 days ago
$295
Roundtrip
found 6 days ago
Select United flight, departing Wed, Jan 7 from Greenville to Boise, returning Tue, Jan 13, priced at $295 found 6 days ago
Alaska Airlines
Sat, Nov 15 - Tue, Nov 18
GSP
Greenville
BOI
Boise
$477 Roundtrip, found 3 days ago
$477
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Sat, Nov 15 from Greenville to Boise, returning Tue, Nov 18, priced at $477 found 3 days ago

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

September is typically the cheapest month to fly

From $282 - $830 per traveler.

Alternative airports near Boise

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

Select flight to Boise Airport BOI. Cheapest and Closest option available. Average driving time to city center is 8 minutes. Flights from $426
BOI
Boise Airport
CheapestClosest
Average driving time to city center8 min
Flights from $426

Frequently asked questions

How much does a flight from Greenville-Spartanburg Intl. Airport (GSP) to Boise Airport (BOI) cost?
Get a cheap one-way flight from $134 or cheap return flight from $257 from Greenville-Spartanburg Intl. Airport (GSP) to Boise Airport (BOI) 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 Greenville-Spartanburg Intl. Airport (GSP) to Boise Airport (BOI)?
December is the least expensive month to fly from GSP to BOI. Avoiding peak travel times is often the key to better flight prices.
What is the cheapest airline that flies from Greenville-Spartanburg Intl. Airport (GSP) to Boise Airport (BOI)?
Expedia's filter tool lets you easily compare different airlines, travel time and fares all in one place. Tailor the search to your trip, then sort by "Price (lowest to highest)" to find the carrier with the cheapest GSP to BOI flight.
How many flights per day from Greenville-Spartanburg Intl. Airport (GSP) to Boise Airport (BOI)?
You'll need to book a flight with a layover if you're traveling from Greenville-Spartanburg Intl. Airport (GSP) to Boise Airport (BOI). There are no daily direct flights 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 GSP to BOI?
Generally you'll find the most flight options available on a Friday. Tuesdays are often the quietest.* But this can change based on the time of year, carrier 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 Greenville-Spartanburg Intl. Airport (GSP) to Boise Airport (BOI)?
To reach Boise Airport (BOI) without delays, choose a flight that takes off from Greenville-Spartanburg Intl. Airport (GSP) before 3 PM. The chance 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 Greenville-Spartanburg Intl. Airport (GSP) to Boise Airport (BOI) last-minute?
Booking your flight from GSP to BOI just before your journey is generally 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 GSP to BOI flight and hotel package?
Booking a GSP to BOI flight and hotel package is typically cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your travels in one place. Pick from our wide range of hotels and then add activities, car rentals and flights to your booking. Bundle it all together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Greenville-Spartanburg Intl. Airport (GSP) to Boise Airport (BOI)?
It's generally possible to cancel or reschedule your GSP to BOI flight. However, if it's been more than 24 hours since booking, additional fees may apply. Check your airline's policies in your itinerary to see what changes are possible and whether any costs are involved. You'll also find further details on our Customer Service portal.

Travel information

Origin airport
Greenville-Spartanburg Intl.
Destination airport
Boise
Airlines serving
Alaska Airlines, American Airlines, Delta, Southwest Airlines, United
Roundtrip price
$256
Distance
1900 mi

Book with confidence

Greenville to Boise Flights

The cheapest times to fly from Greenville to Boise

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

 

The best time to book a flight from Greenville to Boise

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

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 Greenville to Boise in 2025. You can also book with separate airlines for your outbound and return journeys, from $134 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 Greenville to Boise 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 Greenville to Boise 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.

 

Greenville to Boise Flights

Explore a world of travel with Expedia

*Available to One Key members.