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Helena

$413+ Cheap flights from Philadelphia to Helena (PHL - 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 2/28. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — HLN
Jan 15 — Jan 221
Thu 1/15
Thu 1/22
1 adult, Economy
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Cheap flight deals from Philadelphia to Helena

Cheapest flights from Philadelphia to Helena
Explore the most affordable flight options available from Philadelphia to Helena. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 16, 2025.

This United Airlines deal was found by Cheapflights users on 12/15. 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.
Sat 12/276:00 amPHL - HLN
2 stops41h 31mUnited Airlines
Wed 12/316:10 amHLN - PHL
1 stop7h 37mUnited Airlines
Deal found 12/15$1,132

Find flight deals from Philadelphia to Helena

Discover tips and strategies to find the most affordable flight options for your journey from Philadelphia (PHL) to Helena (HLN). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated December 16, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$413
(Alaska Airlines)

Popular in

December

Cheapest in

April

Average price

$830
Provider with most accurate pricing for Philadelphia-Helena flight deals.
Search Deals
Provider most trusted by Cheapflights users for Philadelphia-Helena flights.
Search Deals
From Philadelphia to Helena
Search Deals
Highest demand for flights based on searches. 16% potential increase in price ($136 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($16 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Philadelphia 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 December 16, 2025.
Use the filters below to find and compare flights from Philadelphia to Helena that are best for you.

Fly from

Philadelphia

Fly to

Helena

Route

Depart

Return

Price

PhiladelphiaHelena

PHL - HLN

PHLHLN

Philadelphia

Sat 2/28

6:20 pm-3:59 pm

1 stop23h 39m

Helena

Tue 3/3

4:36 pm-5:20 pm

1 stop22h 44m

$413

PhiladelphiaHelena

PHL - HLN

PHLHLN

Philadelphia

Wed 4/22

7:00 am-12:23 pm

1 stop7h 23m

Helena

Wed 5/27

5:45 am-5:43 am

1 stop21h 58m

$508

PhiladelphiaHelena

PHL - HLN

PHLHLN

Philadelphia

Tue 4/21

7:00 am-12:23 pm

1 stop7h 23m

Helena

Tue 5/26

5:45 am-5:43 am

1 stop21h 58m

$508

PhiladelphiaHelena

PHL - HLN

PHLHLN

Philadelphia

Tue 4/21

3:10 pm-10:34 pm

2 stops9h 24m

Helena

Sat 5/23

5:45 am-5:43 am

1 stop21h 58m

$513

PhiladelphiaHelena

PHL - HLN

PHLHLN

Philadelphia

Tue 4/21

3:10 pm-10:34 pm

2 stops9h 24m

Helena

Sun 5/24

5:45 am-6:25 pm

2 stops10h 40m

$523

PhiladelphiaHelena

PHL - HLN

PHLHLN

Philadelphia

Sun 4/19

7:00 am-12:23 pm

1 stop7h 23m

Helena

Sat 5/30

12:50 pm-5:43 am

1 stop14h 53m

$524

PhiladelphiaHelena

PHL - HLN

PHLHLN

Philadelphia

Sun 4/19

7:00 am-12:23 pm

1 stop7h 23m

Helena

Tue 5/19

12:50 pm-5:43 am

1 stop14h 53m

$524

PhiladelphiaHelena

PHL - HLN

PHLHLN

Philadelphia

Mon 4/20

7:00 am-12:23 pm

1 stop7h 23m

Helena

Wed 5/27

12:50 pm-5:43 am

1 stop14h 53m

$524

PhiladelphiaHelena

PHL - HLN

PHLHLN

Philadelphia

Mon 4/20

7:00 am-12:23 pm

1 stop7h 23m

Helena

Wed 5/20

12:50 pm-5:43 am

1 stop14h 53m

$524

PhiladelphiaHelena

PHL - HLN

PHLHLN

Philadelphia

Thu 4/30

7:00 am-3:38 pm

1 stop10h 38m

Helena

Mon 5/4

4:10 pm-5:23 am

1 stop11h 13m

$529

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/14

Showing 1-10 of 11 results
1
2

Compare providers for flights from Philadelphia to Helena

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Philadelphia to Helena in December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Philadelphia-Helena flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Philadelphia-Helena flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Philadelphia-Helena flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Philadelphia-Helena flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Philadelphia-Helena flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Philadelphia to Helena

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

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

Currently, June is the cheapest month in which you can book a flight from Philadelphia to Helena (average of $133). Flying from Philadelphia to Helena in March is currently the most expensive (average of $256). 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.

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

Reviews of airlines servicing Helena

Get insights into the airlines that provide service to Helena. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Helena. Reviews last updated December 16, 2025.
Read through reviews of airlines operating flights from Philadelphia to Helena, such as United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,092 reviews

Food

6.6

Crew

8.1

Boarding

7.7

Entertainment

7.1

Overall

7.4

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Sunderesh,Dec 2025

AUS - EWR

Smooth flight from Austin to Newark. The crew was friendly.
United Airlines
7.4
Good
9,092 reviews
United Airlines
7.4
Good
9,092 reviews

Food

6.6

Crew

8.1

Boarding

7.7

Entertainment

7.1

Overall

7.4

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Sunderesh,Dec 2025

AUS - EWR

Smooth flight from Austin to Newark. The crew was friendly.

Related info for your journey

Find useful and relevant information for your journey from Philadelphia to Helena. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Philadelphia to Helena?

    Alaska Airlines and Delta can get you from Philadelphia to Helena in just under 7h 23m. Your travel time can differ by up to 16h 16m. The distance between Philadelphia and Helena is about 1887 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What is the cheapest airline to fly from Philadelphia to Helena round-trip?

    Cheapflights users have booked flights from Philadelphia to Helena round-trip from $511. United Airlines is 26% cheaper than the average price of flights available within the next 90 days to this destination.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Philadelphia 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 Philadelphia to Helena?

    Currently, June is the cheapest month in which you can book a flight from Philadelphia to Helena (average of $133). Flying from Philadelphia to Helena in March is currently the most expensive (average of $256). 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 Philadelphia to Helena

Discover the top airline that operate flights from Philadelphia 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 December 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$511Average$717FlexibilityNo cancel feeOn-time69%

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