HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Helena

$359+ Cheap flights from Philadelphia to Helena (PHL - HLN)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/27. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — HLN
Aug 18 — Aug 251
Mon 8/18
Mon 8/25
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Philadelphia to Helena with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap 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 August 13, 2025.

Round-trip from

$429
(United Airlines)

One-way from

$359
(Delta)
From Philadelphia to Helena
Search Deals
One-way flight from Philadelphia to Helena
Search Deals

Find 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 August 13, 2025.

This United Airlines deal was found by Cheapflights users on 8/13. 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 10/1810:00 amPHL - HLN
1 stop8h 40mUnited Airlines
Sat 10/252:00 pmHLN - PHL
1 stop7h 09mUnited Airlines
Deal found 8/13$429
This Alaska Airlines deal was found by Cheapflights users on 8/10. 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.
Sat 9/67:22 amPHL - HLN
1 stop9h 59mAlaska Airlines
Sat 9/134:02 pmHLN - PHL
1 stop12h 00mAlaska Airlines
Deal found 8/10$480
This Alaska Airlines deal was found by Cheapflights users on 8/12. 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.
Fri 10/107:11 pmPHL - HLN
1 stop24h 30mAlaska Airlines
Mon 10/136:18 pmHLN - PHL
1 stop9h 22mAlaska Airlines
Deal found 8/12$512
This Alaska Airlines deal was found by Cheapflights users on 8/12. 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.
Fri 10/107:11 pmPHL - HLN
1 stop24h 30mAlaska Airlines
Sun 10/126:18 pmHLN - PHL
1 stop9h 22mAlaska Airlines
Deal found 8/12$520
This United Airlines deal was found by Cheapflights users on 8/10. 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 9/61:03 pmPHL - HLN
2 stops11h 11mUnited Airlines
Sat 9/132:30 pmHLN - PHL
1 stop6h 59mUnited Airlines
Deal found 8/10$570
This United Airlines deal was found by Cheapflights users on 8/12. 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.
Tue 8/268:00 amPHL - HLN
1 stop15h 11mUnited Airlines
Thu 9/42:30 pmHLN - PHL
1 stop6h 59mUnited Airlines
Deal found 8/12$604
This Alaska Airlines deal was found by Cheapflights users on 8/11. 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.
Sat 11/227:00 amPHL - HLN
1 stop13h 22mAlaska Airlines
Sun 1/46:32 pmHLN - PHL
1 stop21h 06mAlaska Airlines
Deal found 8/11$624
This United Airlines deal was found by Cheapflights users on 8/12. 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.
Wed 8/279:55 amPHL - HLN
1 stop13h 16mUnited Airlines
Sun 8/312:30 pmHLN - PHL
1 stop13h 05mUnited Airlines
Deal found 8/12$657

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 August 13, 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 10/18

10:00 am-4:40 pm

1 stop8h 40m

Helena

Sat 10/25

2:00 pm-11:09 pm

1 stop7h 09m

$429

PhiladelphiaHelena

PHL - HLN

PHLHLN

Philadelphia

Sat 9/6

7:22 am-3:21 pm

1 stop9h 59m

Helena

Sat 9/13

4:02 pm-6:02 am

1 stop12h 00m

$480

PhiladelphiaHelena

PHL - HLN

PHLHLN

Philadelphia

Fri 10/10

7:11 pm-5:41 pm

1 stop24h 30m

Helena

Mon 10/13

6:18 pm-5:40 am

1 stop9h 22m

$512

PhiladelphiaHelena

PHL - HLN

PHLHLN

Philadelphia

Fri 10/10

7:11 pm-5:41 pm

1 stop24h 30m

Helena

Sun 10/12

6:18 pm-5:40 am

1 stop9h 22m

$520

PhiladelphiaHelena

PHL - HLN

PHLHLN

Philadelphia

Sat 9/6

1:03 pm-10:14 pm

2 stops11h 11m

Helena

Sat 9/13

2:30 pm-11:29 pm

1 stop6h 59m

$570

PhiladelphiaHelena

PHL - HLN

PHLHLN

Philadelphia

Tue 8/26

8:00 am-9:11 pm

1 stop15h 11m

Helena

Thu 9/4

2:30 pm-11:29 pm

1 stop6h 59m

$604

PhiladelphiaHelena

PHL - HLN

PHLHLN

Philadelphia

Wed 8/27

9:55 am-9:11 pm

1 stop13h 16m

Helena

Sun 8/31

2:30 pm-5:35 am

1 stop13h 05m

$657

PhiladelphiaHelena

PHL - HLN

PHLHLN

Philadelphia

Fri 10/10

7:05 am-12:20 pm

1 stop7h 15m

Helena

Sun 10/12

5:45 am-5:55 pm

2 stops10h 10m

$688

PhiladelphiaHelena

PHL - HLN

PHLHLN

Philadelphia

Wed 8/27

7:00 am-12:20 pm

1 stop7h 20m

$359

PhiladelphiaHelena

PHL - HLN

PHLHLN

Philadelphia

Thu 8/28

9:55 am-4:04 pm

1 stop8h 09m

$400

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/13

Showing 1-10 of 13 results
1
2

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, February is the cheapest month in which you can book a flight from Philadelphia to Helena (average of $353). Flying from Philadelphia to Helena in May is currently the most expensive (average of $517). 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.

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 August 13, 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
8,920 reviews

Boarding

7.7

Crew

8.1

Overall

7.4

Comfort

7.3

Entertainment

7.1

Food

6.6

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!
United Airlines
7.4
Good
8,920 reviews
United Airlines
7.4
Good
8,920 reviews

Boarding

7.7

Crew

8.1

Overall

7.4

Comfort

7.3

Entertainment

7.1

Food

6.6

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!

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.

  • What are the cheapest airlines flying from Philadelphia to Helena round-trip?

    Cheapflights users have booked flights from Philadelphia to Helena round-trip from $429. Another airline that can offer you cheap pricing is Alaska Airlines.

  • 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, February is the cheapest month in which you can book a flight from Philadelphia to Helena (average of $353). Flying from Philadelphia to Helena in May is currently the most expensive (average of $517). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Philadelphia to Helena

See prices for flight routes from nearby airports that may be better suited for you.
Newark to Bozeman flights
John F Kennedy Intl to Bozeman flights
LaGuardia to Bozeman flights
Dulles Intl to Bozeman flights
John F Kennedy Intl to Kalispell flights
Reagan-National to Bozeman flights
Newark to Kalispell flights
John F Kennedy Intl to Missoula flights
Newark to Missoula flights
LaGuardia to Missoula flights
LaGuardia to Kalispell flights
Philadelphia to Kalispell flights
Philadelphia to Bozeman flights
Reagan-National to Kalispell flights
Dulles Intl to Kalispell flights
Harrisburg to Missoula flights
Dulles Intl to Missoula flights
John F Kennedy Intl to Billings flights
Newark to Billings flights
Pittsburgh to Bozeman flights
Reagan-National to Missoula flights
LaGuardia to Billings flights
Harrisburg to Billings flights
Dulles Intl to Great Falls flights
Dulles Intl to Billings flights
Pittsburgh to Kalispell flights
Harrisburg to Bozeman flights
Reagan-National to Great Falls flights
Reagan-National to Billings flights
Philadelphia to Missoula flights
Philadelphia to Billings flights
Pittsburgh to Missoula flights
Dulles Intl to Helena flights
John F Kennedy Intl to Great Falls flights
Newark to Great Falls flights
Philadelphia to Cody flights
Newark to West Yellowstone flights
John F Kennedy Intl to West Yellowstone flights
John F Kennedy Intl to Helena flights
Harrisburg to Kalispell flights
Philadelphia to Great Falls flights
Allentown to Bozeman flights
Newark to Helena flights
LaGuardia to Cody flights
LaGuardia to Great Falls flights
Reagan-National to Helena flights
Philadelphia to Butte flights
LaGuardia to Helena flights
Dulles Intl to West Yellowstone flights

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 August 13, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$596Average$752FlexibilityNo cancel feeOn-time69%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.