$207+ 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 12/21. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — HLN
Nov 14 — Nov 211
Round-trip
1 adult, Economy
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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
Cheapest
Best
Last-minute
One-way
Cheapest flights from Philadelphia to HelenaExplore 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 October 15, 2026.
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 October 15, 2026.
This Expedia deal was found by Cheapflights users on 10/10. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/267:01 am -
1 stop10h 40m
Wed 12/304:18 pm -
1 stop11h 23m
Deal found 10/10![Alaska Airlines logo]()
$1,112
This United Airlines deal was found by Cheapflights users on 10/10. 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 12/267:35 am -
1 stop8h 11m
Wed 12/306:20 am -
2 stops10h 30m
Deal found 10/10![United Airlines logo]()
$1,322
Best flights from Philadelphia to HelenaDiscover carefully curated flight deals from Philadelphia to Helena that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 15, 2026.
Discover carefully curated flight deals from Philadelphia to Helena that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 15, 2026.
This Delta deal was found by Cheapflights users on 10/12. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/317:00 am -
1 stop7h 24m
Sat 5/155:45 am -
2 stops10h 30m
Deal found 10/12![Delta logo]()
$384
This United Airlines deal was found by Cheapflights users on 10/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/97:46 am -
1 stop7h 54m
Tue 1/122:27 pm -
1 stop7h 10m
Deal found 10/11![United Airlines logo]()
$499
This Alaska Airlines deal was found by Cheapflights users on 10/12. 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.
Wed 3/315:56 pm -
1 stop23h 35m
Sat 5/154:08 pm -
1 stop11h 47m
Deal found 10/12![Alaska Airlines logo]()
$514
This Delta deal was found by Cheapflights users on 10/12. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/3010:21 am -
2 stops14h 20m
Sat 5/155:45 am -
2 stops10h 30m
Deal found 10/12![Delta logo]()
$389
Last-minute flights from Philadelphia to HelenaDiscover last-minute flight deals from Philadelphia to Helena. Data last updated October 15, 2026 and is based on user searches.
Discover last-minute flight deals from Philadelphia to Helena. Data last updated October 15, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 10/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/167:20 am -
1 stop7h 08m
Sun 10/187:15 am -
1 stop8h 24m
Deal found 10/10![Delta logo]()
$799
One-way flights from Philadelphia to HelenaSearch for one-way flight options from Philadelphia to Helena. Find affordable one-way fares based on user searches. Data last updated October 15, 2026.
Search for one-way flight options from Philadelphia to Helena. Find affordable one-way fares based on user searches. Data last updated October 15, 2026.
This Delta deal was found by Cheapflights users on 10/12. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/217:10 am -
1 stop7h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/12![Delta logo]()
$207
This United Airlines deal was found by Cheapflights users on 10/12. 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 4/61:00 pm -
2 stops9h 59m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/12![United Airlines logo]()
$222
This Delta deal was found by Cheapflights users on 10/12. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/187:10 am -
1 stop7h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/12![Delta logo]()
$287
This Delta deal was found by Cheapflights users on 10/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/207:10 am -
1 stop7h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/10![Delta logo]()
$320
This Alaska Airlines deal was found by Cheapflights users on 10/12. 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.
Thu 12/177:02 am -
1 stop10h 39m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/12![Alaska Airlines logo]()
$350
This United Airlines deal was found by Cheapflights users on 10/12. 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.
Thu 12/179:50 am -
2 stops13h 47m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/12![United Airlines logo]()
$361
This United Airlines deal was found by Cheapflights users on 10/13. 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 12/193:50 pm -
1 stop7h 47m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/13![United Airlines logo]()
$389
This United Airlines deal was found by Cheapflights users on 10/10. 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.
Mon 12/211:01 pm -
2 stops10h 36m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/10![United Airlines logo]()
$399
This Delta deal was found by Cheapflights users on 10/12. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/196:40 pm -
1 stop19h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/12![Delta logo]()
$409
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 October 15, 2026.
Most accurate provider | Expedia 1 star |
|---|---|
Most trusted provider | Expedia 3 stars |
Round-trip from | $384 (Delta) |
One-way from | $207 (Delta) |
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 7,457,451 searches. Data last updated October 15, 2026.
Use the filters below to find and compare flights from Philadelphia to Helena that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Quickest round-trip
PhiladelphiaHelena
PHL Philadelphia - HLN Helena
PHLHLN
Philadelphia
Fri 12/18
7:10 am-12:30 pm
1 stop7h 20m
Helena
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$287
PhiladelphiaHelena
PHL Philadelphia - HLN Helena
PHLHLN
Philadelphia
Thu 12/17
7:02 am-3:41 pm
1 stop10h 39m
Helena
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$350
PhiladelphiaHelena
PHL Philadelphia - HLN Helena
PHLHLN
Philadelphia
Thu 12/17
9:50 am-9:37 pm
2 stops13h 47m
Helena
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$361
PhiladelphiaHelena
PHL Philadelphia - HLN Helena
PHLHLN
Philadelphia
Wed 3/31
7:00 am-12:24 pm
1 stop7h 24m
Helena
Sat 5/15
5:45 am-6:15 pm
2 stops10h 30m
$384
PhiladelphiaHelena
PHL Philadelphia - HLN Helena
PHLHLN
Philadelphia
Tue 3/30
10:21 am-10:41 pm
2 stops14h 20m
Helena
Sat 5/15
5:45 am-6:15 pm
2 stops10h 30m
$389
PhiladelphiaHelena
PHL Philadelphia - HLN Helena
PHLHLN
Philadelphia
Mon 12/21
1:01 pm-9:37 pm
2 stops10h 36m
Helena
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$399
PhiladelphiaHelena
PHL Philadelphia - HLN Helena
PHLHLN
Philadelphia
Mon 12/21
11:45 am-12:25 pm
2 stops26h 40m
Helena
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$409
PhiladelphiaHelena
PHL Philadelphia - HLN Helena
PHLHLN
Philadelphia
Sat 12/19
9:50 am-9:37 pm
2 stops13h 47m
Helena
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$417
PhiladelphiaHelena
PHL Philadelphia - HLN Helena
PHLHLN
Philadelphia
Sat 1/9
7:46 am-1:40 pm
1 stop7h 54m
Helena
Tue 1/12
2:27 pm-11:37 pm
1 stop7h 10m
$499
PhiladelphiaHelena
PHL Philadelphia - HLN Helena
PHLHLN
Philadelphia
Wed 3/31
5:56 pm-3:31 pm
1 stop23h 35m
Helena
Sat 5/15
4:08 pm-5:55 am
1 stop11h 47m
$514
Sorted by cheapest first
- Most accurate provider: When it comes to deals on Philadelphia-Helena flights, users find the pricing of Expedia to be most consistent on Cheapflights vs. Expedia Users can find the same prices on Philadelphia-Helena flight deals on Cheapflights vs. Expedia <90% 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 Expedia the most. Expedia 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.
PHL-HLN
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.
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.
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