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Helena

$275+ Cheap flights from Portland, ME to Helena (PWM - 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.
PWM — HLN
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
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Cheap flight deals from Portland to Helena

Discover tips and strategies to find the most affordable flight options for your journey from Portland (PWM) 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 June 12, 2025.

Round-trip from

$428
(Delta)

One-way from

$275
(Delta)
From Portland to Helena
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One-way flight from Portland to Helena
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Find flight deals from Portland to Helena

Cheapest flights from Portland to Helena
Explore the most affordable flight options available from Portland to Helena. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.

This Delta deal was found by Cheapflights users on 6/12. 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 8/3012:53 pmPWM - HLN
2 stops11h 20mDelta
Tue 9/1612:50 pmHLN - PWM
2 stops32h 41mDelta
Deal found 6/12$428
This United Airlines deal was found by Cheapflights users on 6/12. 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 8/276:14 amPWM - HLN
2 stops11h 50mUnited Airlines
Sat 9/135:20 pmHLN - PWM
2 stops14h 49mUnited Airlines
Deal found 6/12$553

Cheapflights Fare Finder

Customize your flight search to find flights from Portland 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 June 12, 2025.
Use the filters below to find and compare flights from Portland to Helena that are best for you.

Fly from

Portland

Fly to

Helena

Route

Depart

Return

Price

PortlandHelena

PWM - HLN

PWMHLN

Portland

Sat 8/30

12:53 pm-10:13 pm

2 stops11h 20m

Helena

Tue 9/16

12:50 pm-11:31 pm

2 stops32h 41m

$428

PortlandHelena

PWM - HLN

PWMHLN

Portland

Wed 8/27

6:14 am-4:04 pm

2 stops11h 50m

Helena

Sat 9/13

5:20 pm-10:09 am

2 stops14h 49m

$553

PortlandHelena

PWM - HLN

PWMHLN

Portland

Wed 8/27

6:31 am-12:20 pm

2 stops31h 49m

$275

PortlandHelena

PWM - HLN

PWMHLN

Portland

Sun 8/31

6:23 pm-1:30 pm

2 stops21h 07m

$363

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/12

Best time to book a flight from Portland to Helena

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

What is the cheapest month to book a flight from Portland, Maine to Helena?

Currently, February is the cheapest month in which you can book a flight from Portland, Maine to Helena (average of $353). Flying from Portland, Maine to Helena in July is currently the most expensive (average of $555). 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.

Rainfall in Helena by month

Plan your trip to Helena by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Helena ranges from 0.3 - 2.1 inches per month. June is typically the wettest month, when rainfall can reach 2.1 in. February is typically the driest time to visit Helena when rainfall is around 0.3 in.

Temperature in Helena by month

Plan your trip to Helena by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Helena, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 69.8 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 21.2 F).

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 June 12, 2025.
Delta
8.0
Very good
7,946 reviews

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Overall

8.0

Food

7.3

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,946 reviews
Delta
8.0
Very good
7,946 reviews

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Overall

8.0

Food

7.3

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,790 reviews
Delta
8.0
Very good
7,946 reviews

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Overall

8.0

Food

7.3

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

Find useful and relevant information for your journey from Portland 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 Portland, Maine to Helena round-trip?

    Currently priced at $428, Delta will fly you from Portland, Maine to Helena and back. In addition to Delta, many other airlines offer competitively priced options for your trip. Check Cheapflights for deals on United Airlines for as low as $553.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Portland 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 Portland, Maine to Helena?

    Currently, February is the cheapest month in which you can book a flight from Portland, Maine to Helena (average of $353). Flying from Portland, Maine to Helena in July is currently the most expensive (average of $555). 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.

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