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Helena

$336+ Cheap flights from Idaho to Helena (HLN)

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 4/14. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — HLN
Nov 29 — Dec 61
Sat 11/29
Sat 12/6
1 adult, Economy
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Find flight deals from Idaho to Helena

Cheapest flights from Idaho to Helena
Explore the most affordable flight options available from Idaho to Helena. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 30, 2025.

This Delta deal was found by Cheapflights users on 10/28. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/126:00 amBOI - HLN
1 stop6h 26mDelta
Sun 11/165:30 amHLN - BOI
1 stop6h 30mDelta
Deal found 10/28$537
This Alaska Airlines deal was found by Cheapflights users on 10/28. 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.
Wed 11/1211:43 amBOI - HLN
1 stop5h 53mAlaska Airlines
Sun 11/166:13 pmHLN - BOI
2 stops29h 36mAlaska Airlines
Deal found 10/28$635
This Delta deal was found by Cheapflights users on 10/29. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/306:00 amBOI - HLN
1 stop6h 20mDelta
Sun 11/25:45 amHLN - BOI
1 stop4h 32mDelta
Deal found 10/29$787
This United Airlines deal was found by Cheapflights users on 10/29. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/307:00 pmBOI - HLN
2 stops18h 27mUnited Airlines
Sun 11/22:22 pmHLN - BOI
1 stop6h 59mUnited Airlines
Deal found 10/29$958

Cheap flight deals from Idaho to Helena

Keep the following information in mind while searching for Idaho to Helena flight deals. Data was last updated October 30, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$336
(Alaska Airlines)

Popular in

October

Cheapest in

March

Average price

$941
Provider with most accurate pricing for Boise Air Term. Gowen Fld-Helena flight deals.
Search Deals
Provider most trusted by Cheapflights users for Boise Air Term. Gowen Fld-Helena flights.
Search Deals
From Idaho to Helena
Search Deals
Highest demand for flights based on searches. 33% potential increase in price ($207 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 17% potential price decrease ($60 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Idaho to Helena 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 October 30, 2025.
Use the filters below to find and compare flights from Idaho to Helena that are best for you.

Fly from

Idaho

Fly to

Helena

Route

Depart

Return

Price

BoiseHelena

BOI - HLN

BOIHLN

Boise Air Term. Gowen Fld

Tue 4/14

10:00 am-3:38 pm

1 stop5h 38m

Helena

Sat 4/18

4:10 pm-10:21 pm

1 stop6h 11m

$336

BoiseHelena

BOI - HLN

BOIHLN

Boise Air Term. Gowen Fld

Tue 4/14

8:40 am-10:34 pm

2 stops13h 54m

Helena

Sat 4/18

5:45 am-10:13 am

1 stop4h 28m

$416

BoiseHelena

BOI - HLN

BOIHLN

Boise Air Term. Gowen Fld

Wed 11/12

6:00 am-12:26 pm

1 stop6h 26m

Helena

Sun 11/16

5:30 am-12:00 pm

1 stop6h 30m

$537

BoiseHelena

BOI - HLN

BOIHLN

Boise Air Term. Gowen Fld

Wed 11/12

11:43 am-5:36 pm

1 stop5h 53m

Helena

Sun 11/16

6:13 pm-11:49 pm

2 stops29h 36m

$635

BoiseHelena

BOI - HLN

BOIHLN

Boise Air Term. Gowen Fld

Tue 11/4

11:43 am-5:36 pm

1 stop5h 53m

$383

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/27

Best time to book a flight from Idaho to Helena

Have a flexible travel schedule? Discover the best time to fly to Helena 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 Helena

What is the cheapest month to book a flight from Idaho to Helena?

Currently, October is the cheapest month in which you can book a flight from Idaho to Helena (average of $87). Flying from Idaho to Helena in September is currently the most expensive (average of $298). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from ID to HLN?

Find hourly flight availability from Idaho to Helena. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 30, 2025.

One of the essential ways to save on airfare from Idaho to Helena is to remain as flexible as possible. Flights that are in the evening tend to be the most expensive. A flight at noon could potentially save you up to 42% on airfare.

How much does it cost to fly round-trip from Idaho to Helena?

Related info for your journey

Find useful and relevant information for your journey from Idaho to Helena. 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 Helena from Idaho?

    If you book a flight to Helena from Idaho, you will be flying to Helena, which is the city’s only airport. Helena (HLN) is located 2.7 mi from the center of Helena.

  • How long is the flight from Idaho to Helena?

    Departing from Idaho to Helena will take you 5h 38m. Idaho and Helena are separated by a distance of 294 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

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

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

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

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

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

  • What is the cheapest month to book a flight from Idaho to Helena?

    Currently, October is the cheapest month in which you can book a flight from Idaho to Helena (average of $87). Flying from Idaho to Helena in September is currently the most expensive (average of $298). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Top airline flying from Idaho to Helena

Discover the top airline that operate flights from Idaho to Helena. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated October 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$173Average$287FlexibilityNo cancel feeOn-timeN/A

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