$232 Cheap Flights from Philadelphia (PHL) to Helena (HLN)

View $232 flight on Tue, Dec 9, 2025Opens in a new window

Popular airlines from Philadelphia Intl. Airport (PHL) to Helena, MT (HLN-Helena Regional)

  • notification illustration

    Be in the know

    Get alerts if flight prices drop or rise*
  • deals illustration

    Book smarter

    Save up to 30% on select hotels after you book a flight*
  • trophy illustration

    Earn twice

    Earn your airline miles on top of our OneKeyCash
    Learn about One Key

Cheap Flights from Philadelphia to Helena (PHL-HLN)

Prices were available within the past 7 days and start at $232 for one-way flights and $392 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Tue, Dec 9 - Tue, Dec 16
PHL
Philadelphia
HLN
Helena
$392 Roundtrip, found 1 hour ago
$392
Roundtrip
found 1 hour ago
Select Alaska Airlines flight, departing Tue, Dec 9 from Philadelphia to Helena, returning Tue, Dec 16, priced at $392 found 1 hour ago
Alaska Airlines
Tue, Dec 9 - Tue, Dec 16
PHL
Philadelphia
HLN
Helena
$403 Roundtrip, found 1 hour ago
$403
Roundtrip
found 1 hour ago
Select Alaska Airlines flight, departing Tue, Dec 9 from Philadelphia to Helena, returning Tue, Dec 16, priced at $403 found 1 hour ago
Hawaiian Airlines
Sat, Dec 6 - Sun, Dec 14
PHL
Philadelphia
HLN
Helena
$412 Roundtrip, found 3 days ago
$412
Roundtrip
found 3 days ago
Select Hawaiian Airlines flight, departing Sat, Dec 6 from Philadelphia to Helena, returning Sun, Dec 14, priced at $412 found 3 days ago
Hawaiian Airlines
Tue, Jan 6 - Tue, Jan 20
PHL
Philadelphia
HLN
Helena
$427 Roundtrip, found 5 days ago
$427
Roundtrip
found 5 days ago
Select Hawaiian Airlines flight, departing Tue, Jan 6 from Philadelphia to Helena, returning Tue, Jan 20, priced at $427 found 5 days ago
Alaska Airlines
Mon, Dec 15 - Wed, Dec 31
PHL
Philadelphia
HLN
Helena
$432 Roundtrip, found 4 days ago
$432
Roundtrip
found 4 days ago
Select Alaska Airlines flight, departing Mon, Dec 15 from Philadelphia to Helena, returning Wed, Dec 31, priced at $432 found 4 days ago
Hawaiian Airlines
Fri, Dec 5 - Sun, Dec 7
PHL
Philadelphia
HLN
Helena
$443 Roundtrip, found 3 days ago
$443
Roundtrip
found 3 days ago
Select Hawaiian Airlines flight, departing Fri, Dec 5 from Philadelphia to Helena, returning Sun, Dec 7, priced at $443 found 3 days ago
Hawaiian Airlines
Tue, Jan 6 - Fri, Jan 23
PHL
Philadelphia
HLN
Helena
$447 Roundtrip, found 5 days ago
$447
Roundtrip
found 5 days ago
Select Hawaiian Airlines flight, departing Tue, Jan 6 from Philadelphia to Helena, returning Fri, Jan 23, priced at $447 found 5 days ago
Alaska Airlines
Tue, Dec 2 - Wed, Dec 10
PHL
Philadelphia
HLN
Helena
$452 Roundtrip, found 1 hour ago
$452
Roundtrip
found 1 hour ago
Select Alaska Airlines flight, departing Tue, Dec 2 from Philadelphia to Helena, returning Wed, Dec 10, priced at $452 found 1 hour ago
United
Tue, Dec 2 - Wed, Dec 10
PHL
Philadelphia
HLN
Helena
$496 Roundtrip, found 1 hour ago
$496
Roundtrip
found 1 hour ago
Select United flight, departing Tue, Dec 2 from Philadelphia to Helena, returning Wed, Dec 10, priced at $496 found 1 hour ago
Delta
Tue, Dec 9 - Tue, Dec 16
PHL
Philadelphia
HLN
Helena
$502 Roundtrip, found 1 hour ago
$502
Roundtrip
found 1 hour ago
Select Delta flight, departing Tue, Dec 9 from Philadelphia to Helena, returning Tue, Dec 16, priced at $502 found 1 hour ago

Alternative airports near Helena

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Helena Regional HLN. Cheapest and Closest option available. Average driving time to city center is 7 minutes. Flights from $592
HLN
Helena Regional
CheapestClosest
Average driving time to city center7 min
Flights from $592

Frequently asked questions

How much does a flight from Philadelphia Intl. Airport (PHL) to Helena Regional Airport (HLN) cost?
Snag a cheap one-way flight from $232 or cheap return flight from $392 from Philadelphia Intl. Airport (PHL) 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 Philadelphia Intl. Airport (PHL) to Helena Regional Airport (HLN)?
Planning your getaway for December can help you save, as it's the cheapest month for flights between PHL and HLN. You'll usually find the lowest fares during the off-season.
What is the cheapest airline that flies from Philadelphia Intl. Airport (PHL) to Helena Regional Airport (HLN)?
Expedia's filter tool lets you easily compare travel time, airlines and fares all in one place. Tailor the search to your trip, then sort by "Price (lowest to highest)" to see which carrier offers the cheapest PHL to HLN flight.
How many flights per day from Philadelphia Intl. Airport (PHL) to Helena Regional Airport (HLN)?
There aren't any daily direct flights available from Philadelphia Intl. Airport (PHL) to Helena Regional Airport (HLN). But you can opt for flights with layovers. Filter your search results on Expedia to include one or two stops, and you'll be soaring above the clouds before you know it.
What day of the week has the most flights from PHL to HLN?
Friday is usually the busiest day for flights, while Tuesday is often the quietest.* Just remember that flight schedules can vary depending on a range of factors, including the season 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 Philadelphia Intl. Airport (PHL) to Helena Regional Airport (HLN)?
To land at Helena Regional Airport (HLN) without delays, opt for a flight that leaves from Philadelphia Intl. Airport (PHL) 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 Philadelphia Intl. Airport (PHL) to Helena Regional Airport (HLN) last-minute?
Booking your ticket from PHL to HLN right before your trip is typically more expensive. But if there's some wiggle room with your schedule, you could snag a cheap last-minute fare.
Is it cheaper to book a PHL to HLN flight and hotel package?
Opting for a PHL to HLN flight and hotel package is generally cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your trip in one place. Pick from our impressive range of hotels and then add car rentals, activities and flights 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 Philadelphia Intl. Airport (PHL) to Helena Regional Airport (HLN)?
If you reserved your PHL to HLN flight within the last 24 hours, you may be able to cancel or modify it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, go to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Philadelphia Intl.
Destination airport
Helena Regional
Airlines serving
Alaska Airlines, Delta, United
Roundtrip price
$392
Distance
1888 mi

Book with confidence

Philadelphia to Helena Flights

The cheapest times to fly from Philadelphia 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 Philadelphia to Helena are during the month of December. You can find some of the cheapest flights from Philadelphia to Helena with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Philadelphia to Helena

Sunday is one of the best days to book for cheap flights from Philadelphia 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 Philadelphia 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 Philadelphia to Helena in 2025. You can also book with separate airlines for your outbound and return journeys, from $232 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 Philadelphia 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 Philadelphia 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.

 

Philadelphia to Helena Flights

Explore a world of travel with Expedia

*Available to One Key members.