Gustavus

$979+ Cheap flights from Idaho to Gustavus (GST)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/25. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — GST
Aug 19 — Aug 261
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Cheap flight deals from Idaho to Gustavus

Keep the following information in mind while searching for Idaho to Gustavus flight deals. Data was last updated August 14, 2025.

Round-trip from

$979
(Alaska Airlines)
From Idaho to Gustavus Arpt

Find flight deals from Idaho to Gustavus

Cheapest flights from Idaho to Gustavus
Explore the most affordable flight options available from Idaho to Gustavus. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 14, 2025.

This Alaska Airlines deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/259:00 amBOI - GST
2 stops9h 43mAlaska Airlines
Wed 8/275:29 pmGST - BOI
2 stops18h 19mAlaska Airlines
Deal found 8/10$979

Cheapflights Fare Finder

 
Customize your flight search to find flights from Idaho to Gustavus that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 14, 2025.
Use the filters below to find and compare flights from Idaho to Gustavus that are best for you.

Fly from

Idaho

Fly to

Gustavus

Route

Depart

Return

Price

BoiseGustavus

BOI - GST

BOIGST

Boise Air Term. Gowen Fld

Mon 8/25

9:00 am-4:43 pm

2 stops9h 43m

Gustavus Arpt

Wed 8/27

5:29 pm-1:48 pm

2 stops18h 19m

$979

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/10

Best time to book a flight from Idaho to Gustavus

Have a flexible travel schedule? Discover the best time to fly to Gustavus from Idaho with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Idaho to Gustavus
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Related info for your journey

Find useful and relevant information for your journey from Idaho to Gustavus. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • What airport do you fly into for flights to Gustavus from Idaho?

    Located just 1.2 mi from the city center, Gustavus Arpt (GST) is the airport most travelers will use when flying to Gustavus from Idaho.

  • Can I find deals for flights from Idaho to Gustavus that include hotel bookings?

    Yes. In addition to deals on Idaho to Gustavus flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Idaho to Gustavus?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Idaho to Gustavus.

  • Can I find deals for business class flights from Idaho to Gustavus?

    Yes. Cheapflights offers flight deals from Idaho to Gustavus by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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