Cheap Flights from Boise (BOI) to Gustavus (GST)

Popular airlines from Boise Airport (BOI) to Gustavus, AK (GST)

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Cheap Flights from Boise to Gustavus (BOI-GST)

Prices were available within the past 7 days and start at for one-way flights and $995 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Mon, Aug 3 - Sat, Aug 8
BOI
Boise
GST
Gustavus
$995 Roundtrip, just found
$995
Roundtrip
just found
Select Alaska Airlines flight, departing Mon, Aug 3 from Boise to Gustavus, returning Sat, Aug 8, priced at $995 just found
Alaska Airlines
Tue, Jul 7 - Sun, Jul 12
BOI
Boise
GST
Gustavus
$1,005 Roundtrip, found 9 hours ago
$1,005
Roundtrip
found 9 hours ago
Select Alaska Airlines flight, departing Tue, Jul 7 from Boise to Gustavus, returning Sun, Jul 12, priced at $1,005 found 9 hours ago
Alaska Airlines
Mon, Aug 3 - Sat, Aug 8
BOI
Boise
GST
Gustavus
$1,014 Roundtrip, just found
$1,014
Roundtrip
just found
Select Alaska Airlines flight, departing Mon, Aug 3 from Boise to Gustavus, returning Sat, Aug 8, priced at $1,014 just found
Alaska Airlines
Mon, Aug 3 - Sat, Aug 8
BOI
Boise
GST
Gustavus
$1,023 Roundtrip, just found
$1,023
Roundtrip
just found
Select Alaska Airlines flight, departing Mon, Aug 3 from Boise to Gustavus, returning Sat, Aug 8, priced at $1,023 just found
Alaska Airlines
Mon, Aug 3 - Sat, Aug 8
BOI
Boise
GST
Gustavus
$1,047 Roundtrip, found 11 hours ago
$1,047
Roundtrip
found 11 hours ago
Select Alaska Airlines flight, departing Mon, Aug 3 from Boise to Gustavus, returning Sat, Aug 8, priced at $1,047 found 11 hours ago
Alaska Airlines
Mon, Aug 3 - Sat, Aug 8
BOI
Boise
GST
Gustavus
$1,052 Roundtrip, found 11 hours ago
$1,052
Roundtrip
found 11 hours ago
Select Alaska Airlines flight, departing Mon, Aug 3 from Boise to Gustavus, returning Sat, Aug 8, priced at $1,052 found 11 hours ago
Alaska Airlines
Mon, Aug 3 - Sat, Aug 8
BOI
Boise
GST
Gustavus
$1,062 Roundtrip, just found
$1,062
Roundtrip
just found
Select Alaska Airlines flight, departing Mon, Aug 3 from Boise to Gustavus, returning Sat, Aug 8, priced at $1,062 just found
Alaska Airlines
Mon, Aug 3 - Sat, Aug 8
BOI
Boise
GST
Gustavus
$1,089 Roundtrip, found 11 hours ago
$1,089
Roundtrip
found 11 hours ago
Select Alaska Airlines flight, departing Mon, Aug 3 from Boise to Gustavus, returning Sat, Aug 8, priced at $1,089 found 11 hours ago
Alaska Airlines
Mon, Aug 3 - Sat, Aug 8
BOI
Boise
GST
Gustavus
$1,094 Roundtrip, found 11 hours ago
$1,094
Roundtrip
found 11 hours ago
Select Alaska Airlines flight, departing Mon, Aug 3 from Boise to Gustavus, returning Sat, Aug 8, priced at $1,094 found 11 hours ago
Alaska Airlines
Mon, Aug 3 - Sat, Aug 8
BOI
Boise
GST
Gustavus
$1,159 Roundtrip, found 11 hours ago
$1,159
Roundtrip
found 11 hours ago
Select Alaska Airlines flight, departing Mon, Aug 3 from Boise to Gustavus, returning Sat, Aug 8, priced at $1,159 found 11 hours ago
Alaska Airlines
Mon, Aug 3 - Sat, Aug 8
BOI
Boise
GST
Gustavus
$1,164 Roundtrip, found 11 hours ago
$1,164
Roundtrip
found 11 hours ago
Select Alaska Airlines flight, departing Mon, Aug 3 from Boise to Gustavus, returning Sat, Aug 8, priced at $1,164 found 11 hours ago
Alaska Airlines
Mon, Jul 6 - Sun, Jul 12
BOI
Boise
GST
Gustavus
$1,201 Roundtrip, found 9 hours ago
$1,201
Roundtrip
found 9 hours ago
Select Alaska Airlines flight, departing Mon, Jul 6 from Boise to Gustavus, returning Sun, Jul 12, priced at $1,201 found 9 hours ago
Alaska Airlines
Mon, Jul 6 - Sun, Jul 12
BOI
Boise
GST
Gustavus
$1,206 Roundtrip, found 9 hours ago
$1,206
Roundtrip
found 9 hours ago
Select Alaska Airlines flight, departing Mon, Jul 6 from Boise to Gustavus, returning Sun, Jul 12, priced at $1,206 found 9 hours ago
Alaska Airlines
Mon, Aug 3 - Sat, Aug 8
BOI
Boise
GST
Gustavus
$1,251 Roundtrip, just found
$1,251
Roundtrip
just found
Select Alaska Airlines flight, departing Mon, Aug 3 from Boise to Gustavus, returning Sat, Aug 8, priced at $1,251 just found
Alaska Airlines
Mon, Jul 6 - Sun, Jul 12
BOI
Boise
GST
Gustavus
$1,271 Roundtrip, found 9 hours ago
$1,271
Roundtrip
found 9 hours ago
Select Alaska Airlines flight, departing Mon, Jul 6 from Boise to Gustavus, returning Sun, Jul 12, priced at $1,271 found 9 hours ago
Alaska Airlines
Mon, Aug 3 - Sat, Aug 8
BOI
Boise
GST
Gustavus
$1,275 Roundtrip, just found
$1,275
Roundtrip
just found
Select Alaska Airlines flight, departing Mon, Aug 3 from Boise to Gustavus, returning Sat, Aug 8, priced at $1,275 just found
Alaska Airlines
Mon, Jul 6 - Sun, Jul 12
BOI
Boise
GST
Gustavus
$1,276 Roundtrip, found 9 hours ago
$1,276
Roundtrip
found 9 hours ago
Select Alaska Airlines flight, departing Mon, Jul 6 from Boise to Gustavus, returning Sun, Jul 12, priced at $1,276 found 9 hours ago
Alaska Airlines
Mon, Aug 3 - Sat, Aug 8
BOI
Boise
GST
Gustavus
$1,285 Roundtrip, just found
$1,285
Roundtrip
just found
Select Alaska Airlines flight, departing Mon, Aug 3 from Boise to Gustavus, returning Sat, Aug 8, priced at $1,285 just found
Alaska Airlines
Mon, Aug 3 - Sat, Aug 8
BOI
Boise
GST
Gustavus
$1,333 Roundtrip, just found
$1,333
Roundtrip
just found
Select Alaska Airlines flight, departing Mon, Aug 3 from Boise to Gustavus, returning Sat, Aug 8, priced at $1,333 just found
Alaska Airlines
Mon, Jul 6 - Sun, Jul 12
BOI
Boise
GST
Gustavus
$1,341 Roundtrip, found 9 hours ago
$1,341
Roundtrip
found 9 hours ago
Select Alaska Airlines flight, departing Mon, Jul 6 from Boise to Gustavus, returning Sun, Jul 12, priced at $1,341 found 9 hours ago

Frequently asked questions

How much does a flight from Boise Airport (BOI) to Gustavus Airport (GST) cost?
Snag a cheap one-way flight or cheap return flight from $995 from Boise Airport (BOI) to Gustavus Airport (GST) 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 Boise Airport (BOI) to Gustavus Airport (GST)?
Flying in August is a great way to save, as it's the cheapest month for flights between BOI and GST. You'll typically find the lowest prices during the off-season.
What is the cheapest airline that flies from Boise Airport (BOI) to Gustavus Airport (GST)?
Expedia's filter tool lets you easily compare different airlines, flight durations and fares all in one place. Select your preferences, then sort by "Price (lowest to highest)" to find out which carrier offers the cheapest BOI to GST flight.
How many flights per day from Boise Airport (BOI) to Gustavus Airport (GST)?
Nonstop flights from Boise Airport (BOI) to Gustavus Airport (GST) aren't available daily, so you'll have to take a flight with a layover. Explore your options with Expedia's filter tool. Enter your travel dates and pick either "1 Stop" or "2+ Stops."
What day of the week has the most flights from BOI to GST?
Friday is typically the busiest day for flights, while Tuesday tends to be the quietest.* Keep in mind that flight schedules can change depending on various 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 Gustavus Airport (GST)?
To reach Gustavus Airport (GST) on time, book a flight that leaves from Boise Airport (BOI) before 3 PM. The chance of cancellations is 22% higher, on average, for departures after this hour.**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 Gustavus Airport (GST) last-minute?
Booking your ticket from BOI to GST shortly before your getaway is generally more expensive. But if there's some wiggle room with your schedule, you could bag a cheap last-minute fare.
Is it cheaper to book a BOI to GST flight and hotel package?
You'll generally save money by booking a BOI to GST flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's simple to manage everything in one place. Once you've selected your preferred flights and accommodations, you can add extras like car rentals, activities and tours.
Can I cancel or change the date of my flight from Boise Airport (BOI) to Gustavus Airport (GST)?
Typically, it's possible to cancel or reschedule your BOI to GST flight. However, if it's been more than 24 hours since booking, additional charges 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 more information on our Customer Service portal.

Travel information

Origin airport
Boise
Destination airport
Gustavus
Airlines serving
Alaska Airlines
Roundtrip price
$994
Distance
1320 mi

Book with confidence

Boise to Gustavus Flights

The cheapest times to fly from Boise to Gustavus

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

 

The best time to book a flight from Boise to Gustavus

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

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 Gustavus in 2025. You can also book with separate airlines for your outbound and return journeys, from 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 Gustavus 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 Gustavus 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.

 

Boise to Gustavus Flights

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*Available to One Key members.