$140 Cheap Flights from Phoenix (PHX) to Helena (HLN)

View $140 flight on Tue, Oct 21, 2025Opens in a new window

Popular airlines from Phoenix Sky Harbor Intl. Airport (PHX) to Helena, MT (HLN-Helena Regional)

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Cheap Flights from Phoenix to Helena (PHX-HLN)

Prices were available within the past 7 days and start at $140 for one-way flights and $287 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Tue, Oct 7 - Sat, Oct 11
PHX
Phoenix
HLN
Helena
$287 Roundtrip, found 1 day ago
$287
Roundtrip
found 1 day ago
Select Delta flight, departing Tue, Oct 7 from Phoenix to Helena, returning Sat, Oct 11, priced at $287 found 1 day ago
Hawaiian Airlines
Tue, Jan 6 - Tue, Jan 20
PHX
Phoenix
HLN
Helena
$325 Roundtrip, found 2 days ago
$325
Roundtrip
found 2 days ago
Select Hawaiian Airlines flight, departing Tue, Jan 6 from Phoenix to Helena, returning Tue, Jan 20, priced at $325 found 2 days ago
Delta
Wed, Oct 8 - Sat, Oct 11
PHX
Phoenix
HLN
Helena
$326 Roundtrip, found 1 day ago
$326
Roundtrip
found 1 day ago
Select Delta flight, departing Wed, Oct 8 from Phoenix to Helena, returning Sat, Oct 11, priced at $326 found 1 day ago
Hawaiian Airlines
Wed, Oct 8 - Tue, Oct 21
PHX
Phoenix
HLN
Helena
$329 Roundtrip, found 16 hours ago
$329
Roundtrip
found 16 hours ago
Select Hawaiian Airlines flight, departing Wed, Oct 8 from Phoenix to Helena, returning Tue, Oct 21, priced at $329 found 16 hours ago
Hawaiian Airlines
Wed, Oct 8 - Sat, Oct 18
PHX
Phoenix
HLN
Helena
$332 Roundtrip, found 16 hours ago
$332
Roundtrip
found 16 hours ago
Select Hawaiian Airlines flight, departing Wed, Oct 8 from Phoenix to Helena, returning Sat, Oct 18, priced at $332 found 16 hours ago
Delta
Tue, Oct 21 - Wed, Nov 5
PHX
Phoenix
HLN
Helena
$336 Roundtrip, found 3 days ago
$336
Roundtrip
found 3 days ago
Select Delta flight, departing Tue, Oct 21 from Phoenix to Helena, returning Wed, Nov 5, priced at $336 found 3 days ago
Hawaiian Airlines
Tue, Dec 9 - Wed, Jan 7
PHX
Phoenix
HLN
Helena
$336 Roundtrip, found 15 hours ago
$336
Roundtrip
found 15 hours ago
Select Hawaiian Airlines flight, departing Tue, Dec 9 from Phoenix to Helena, returning Wed, Jan 7, priced at $336 found 15 hours ago
Delta
Tue, Oct 7 - Wed, Oct 22
PHX
Phoenix
HLN
Helena
$340 Roundtrip, found 3 days ago
$340
Roundtrip
found 3 days ago
Select Delta flight, departing Tue, Oct 7 from Phoenix to Helena, returning Wed, Oct 22, priced at $340 found 3 days ago
Alaska Airlines
Sat, Oct 11 - Sat, Oct 18
PHX
Phoenix
HLN
Helena
$348 Roundtrip, found 16 hours ago
$348
Roundtrip
found 16 hours ago
Select Alaska Airlines flight, departing Sat, Oct 11 from Phoenix to Helena, returning Sat, Oct 18, priced at $348 found 16 hours ago
United
Sat, Oct 11 - Sat, Oct 18
PHX
Phoenix
HLN
Helena
$354 Roundtrip, found 16 hours ago
$354
Roundtrip
found 16 hours ago
Select United flight, departing Sat, Oct 11 from Phoenix to Helena, returning Sat, Oct 18, priced at $354 found 16 hours ago

Find the cheapest month to fly from Phoenix (PHX) to Helena (HLN)

February is typically the cheapest month to fly

From $259 - $766 per traveler.

Frequently asked questions

How much does a flight from Sky Harbor Intl. Airport (PHX) to Helena Regional Airport (HLN) cost?
Secure a cheap one-way flight from $140 or cheap return flight from $287 from Sky Harbor Intl. Airport (PHX) to Helena Regional Airport (HLN) 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 Sky Harbor Intl. Airport (PHX) to Helena Regional Airport (HLN)?
October is the cheapest month to fly from PHX to HLN. Traveling during quieter months is often the key to scoring lower fares.
What is the cheapest airline that flies from Sky Harbor Intl. Airport (PHX) to Helena Regional Airport (HLN)?
Expedia's filter tool lets you easily compare different airlines, travel time and fares all in one place. Select your preferences, then sort by "Price (lowest to highest)" to find out which carrier offers the cheapest PHX to HLN flight.
How many flights per day from Sky Harbor Intl. Airport (PHX) to Helena Regional Airport (HLN)?
Direct flights from Sky Harbor Intl. Airport (PHX) to Helena Regional Airport (HLN) aren't available daily, so you'll need to take a flight with a layover. Explore your options with Expedia's filter tool. Enter your dates and choose either "1 Stop" or "2+ Stops."
What day of the week has the most flights from PHX to HLN?
Friday is usually the busiest day for flights, while Tuesday tends to be the quietest.* Just remember that flight schedules can vary based on a number of factors, such as the time of year and airline.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Sky Harbor Intl. Airport (PHX) to Helena Regional Airport (HLN)?
To arrive at Helena Regional Airport (HLN) on time, choose a flight that leaves Sky Harbor Intl. Airport (PHX) before 3 PM. The likelihood 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 Sky Harbor Intl. Airport (PHX) to Helena Regional Airport (HLN) last-minute?
Last-minute bookings from PHX to HLN are usually more expensive. For the best rates, start looking for flights as early as possible. That said, if you're flexible with your travel plans, you may score a cheap fare right before your trip.
Is it cheaper to book a PHX to HLN flight and hotel package?
Opting for a PHX to HLN flight and hotel package is generally cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your trip in one place. Choose from our wide range of hotels and then add flights, activities and car rentals 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 Sky Harbor Intl. Airport (PHX) to Helena Regional Airport (HLN)?
It's usually possible to cancel or reschedule your PHX to HLN 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 if any costs are involved. You'll also find further details on our Customer Service portal.

Travel information

Travel information

Origin airport
Sky Harbor Intl.
Destination airport
Helena Regional
Airlines serving
Alaska Airlines, Delta, Hawaiian Airlines, United
Roundtrip price
$286
Distance
910 mi

Book with confidence

Book with confidence

Phoenix to Helena Flights

The cheapest times to fly from Phoenix to Helena

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

 

The best time to book a flight from Phoenix to Helena

Sunday is one of the best days to book for cheap flights from Phoenix to Helena: 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 Phoenix to Helena

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 Phoenix to Helena in 2025. You can also book with separate airlines for your outbound and return journeys, from $140 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 Phoenix to Helena 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 Phoenix to Helena 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.

 

Phoenix to Helena Flights

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*Available to One Key members.