$226 Cheap Flights from Helena (HLN) to Kailua-Kona (KOA)

View $226 flight on Tue, Dec 9, 2025Opens in a new window

Popular airlines from Helena, MT (HLN-Helena Regional) to Kona Intl. Airport (KOA)

Cheap Flights from Helena to Kailua-Kona (HLN-KOA)

Prices were available within the past 7 days and start at $226 for one-way flights and $363 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Hawaiian Airlines
Tue, Dec 9 - Mon, Dec 15
HLN
Helena
KOA
Kona Coast
$363 Roundtrip, found 5 days ago
$363
Roundtrip
found 5 days ago
Select Hawaiian Airlines flight, departing Tue, Dec 9 from Helena to Kona Coast, returning Mon, Dec 15, priced at $363 found 5 days ago
Hawaiian Airlines
Tue, Dec 9 - Tue, Dec 16
HLN
Helena
KOA
Kona Coast
$373 Roundtrip, found 5 days ago
$373
Roundtrip
found 5 days ago
Select Hawaiian Airlines flight, departing Tue, Dec 9 from Helena to Kona Coast, returning Tue, Dec 16, priced at $373 found 5 days ago
Hawaiian Airlines
Sun, Dec 7 - Mon, Dec 15
HLN
Helena
KOA
Kona Coast
$373 Roundtrip, found 5 days ago
$373
Roundtrip
found 5 days ago
Select Hawaiian Airlines flight, departing Sun, Dec 7 from Helena to Kona Coast, returning Mon, Dec 15, priced at $373 found 5 days ago
Delta
Wed, Dec 10 - Mon, Dec 15
HLN
Helena
KOA
Kona Coast
$396 Roundtrip, found 5 days ago
$396
Roundtrip
found 5 days ago
Select Delta flight, departing Wed, Dec 10 from Helena to Kona Coast, returning Mon, Dec 15, priced at $396 found 5 days ago
Hawaiian Airlines
Sat, Dec 6 - Mon, Dec 15
HLN
Helena
KOA
Kona Coast
$402 Roundtrip, found 3 days ago
$402
Roundtrip
found 3 days ago
Select Hawaiian Airlines flight, departing Sat, Dec 6 from Helena to Kona Coast, returning Mon, Dec 15, priced at $402 found 3 days ago
Hawaiian Airlines
Sat, Dec 6 - Tue, Dec 16
HLN
Helena
KOA
Kona Coast
$421 Roundtrip, found 3 days ago
$421
Roundtrip
found 3 days ago
Select Hawaiian Airlines flight, departing Sat, Dec 6 from Helena to Kona Coast, returning Tue, Dec 16, priced at $421 found 3 days ago
Hawaiian Airlines
Thu, Dec 4 - Mon, Dec 15
HLN
Helena
KOA
Kona Coast
$422 Roundtrip, found 3 days ago
$422
Roundtrip
found 3 days ago
Select Hawaiian Airlines flight, departing Thu, Dec 4 from Helena to Kona Coast, returning Mon, Dec 15, priced at $422 found 3 days ago
Alaska Airlines
Tue, Feb 24 - Mon, Mar 2
HLN
Helena
KOA
Kona Coast
$426 Roundtrip, found 19 hours ago
$426
Roundtrip
found 19 hours ago
Select Alaska Airlines flight, departing Tue, Feb 24 from Helena to Kona Coast, returning Mon, Mar 2, priced at $426 found 19 hours ago
Alaska Airlines
Tue, Feb 24 - Mon, Mar 2
HLN
Helena
KOA
Kona Coast
$427 Roundtrip, found 19 hours ago
$427
Roundtrip
found 19 hours ago
Select Alaska Airlines flight, departing Tue, Feb 24 from Helena to Kona Coast, returning Mon, Mar 2, priced at $427 found 19 hours ago
United
Thu, Dec 11 - Mon, Dec 15
HLN
Helena
KOA
Kona Coast
$675 Roundtrip, found 5 days ago
$675
Roundtrip
found 5 days ago
Select United flight, departing Thu, Dec 11 from Helena to Kona Coast, returning Mon, Dec 15, priced at $675 found 5 days ago

Frequently asked questions

How much does a flight from Helena Regional Airport (HLN) to Kona Intl. Airport (KOA) cost?
Secure a cheap one-way flight from $226 or cheap return flight from $363 from Helena Regional Airport (HLN) to Kona Intl. Airport (KOA) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from Helena Regional Airport (HLN) to Kona Intl. Airport (KOA)?
The cheapest month to fly from HLN to KOA is December, when there's less demand. Off-peak season is usually when you'll find lower airfares between these airports.
What is the cheapest airline that flies from Helena Regional Airport (HLN) to Kona Intl. Airport (KOA)?
Use the filter tool on Expedia to compare airlines and find the most affordable carrier that'll take you from HLN to KOA. Then, sort your results by "Price (lowest to highest)" to snag the best deal available.
How many flights per day from Helena Regional Airport (HLN) to Kona Intl. Airport (KOA)?
You'll need to take a flight with a layover if you're traveling from Helena Regional Airport (HLN) to Kona Intl. Airport (KOA). Direct flights don't operate daily 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 HLN to KOA?
Friday is usually the busiest day for flights, while Tuesday tends to be the quietest.* Keep in mind that flight schedules can change depending on a range of factors, such as 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 Helena Regional Airport (HLN) to Kona Intl. Airport (KOA)?
To reach Kona Intl. Airport (KOA) without delays, opt for a flight that leaves from Helena Regional Airport (HLN) 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 Helena Regional Airport (HLN) to Kona Intl. Airport (KOA) last-minute?
Booking your ticket from HLN to KOA just before your getaway is typically more expensive. But if you're flexible with your departure times and dates, you could snag a cheap last-minute fare.
Is it cheaper to book a HLN to KOA flight and hotel package?
You can save money by securing a HLN to KOA 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 ideal accommodations and flights, consider other add-ons like tours, car rentals and activities.
Can I cancel or change the date of my flight from Helena Regional Airport (HLN) to Kona Intl. Airport (KOA)?
Typically, you're able to cancel or reschedule your HLN to KOA flight. However, additional charges may apply, especially if you made your booking more than 24 hours ago. Double-check your itinerary for the airline's policies and fees on flight changes, or if you want further details, visit our Customer Service portal.

Travel information

Origin airport
Helena Regional
Destination airport
Kona Intl.
Airlines serving
Alaska Airlines, Delta, Hawaiian Airlines, United
Roundtrip price
$363
Distance
3092 mi

Book with confidence

Helena to Kailua-Kona Flights

The cheapest times to fly from Helena to Kailua-Kona

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

 

The best time to book a flight from Helena to Kailua-Kona

Sunday is one of the best days to book for cheap flights from Helena to Kailua-Kona: 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 Helena to Kailua-Kona

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 Helena to Kailua-Kona in 2025. You can also book with separate airlines for your outbound and return journeys, from $226 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 Helena to Kailua-Kona 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 Helena to Kailua-Kona 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.

 

Helena to Kailua-Kona Flights

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*Available to One Key members.