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Helena

$520+ Cheap flights from Portland, ME to Helena (PWM - 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 10/4. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — HLN
oct. 11 — oct. 181
sáb. 10/11
sáb. 10/18
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 septiembre 11, 2025.

Round-trip from

$520
(Delta)
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 septiembre 11, 2025.

This Delta deal was found by Cheapflights users on 9/10. 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.
sáb. 10/42:41 pmPWM - HLN
2 stops23h 39mDelta
mar. 10/71:00 pmHLN - PWM
2 stops33h 05mDelta
Deal found 9/10$520
This United Airlines deal was found by Cheapflights users on 9/9. 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.
sáb. 10/46:00 amPWM - HLN
2 stops10h 07mUnited Airlines
mar. 10/76:30 amHLN - PWM
2 stops15h 29mUnited Airlines
Deal found 9/9$523
This United Airlines deal was found by Cheapflights users on 9/10. 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.
jue. 9/253:39 pmPWM - HLN
1 stop7h 21mUnited Airlines
lun. 9/295:18 pmHLN - PWM
2 stops28h 41mUnited Airlines
Deal found 9/10$583

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 septiembre 11, 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

sáb. 10/4

2:41 pm-12:20 pm

2 stops23h 39m

Helena

mar. 10/7

1:00 pm-12:05 am

2 stops33h 05m

$520

PortlandHelena

PWM - HLN

PWMHLN

Portland

sáb. 10/4

6:00 am-2:07 pm

2 stops10h 07m

Helena

mar. 10/7

6:30 am-11:59 pm

2 stops15h 29m

$523

PortlandHelena

PWM - HLN

PWMHLN

Portland

jue. 9/25

3:39 pm-9:00 pm

1 stop7h 21m

Helena

lun. 9/29

5:18 pm-11:59 pm

2 stops28h 41m

$583

PortlandHelena

PWM - HLN

PWMHLN

Portland

jue. 1/29

3:12 pm-1:41 pm

2 stops24h 29m

Helena

sáb. 1/31

6:15 am-6:52 pm

2 stops10h 37m

$598

PortlandHelena

PWM - HLN

PWMHLN

Portland

jue. 1/29

3:12 pm-1:41 pm

2 stops24h 29m

Helena

lun. 2/2

2:27 pm-2:39 pm

2 stops22h 12m

$628

PortlandHelena

PWM - HLN

PWMHLN

Portland

jue. 1/29

3:12 pm-1:41 pm

2 stops24h 29m

Helena

dom. 2/1

2:27 pm-2:31 pm

2 stops22h 04m

$693

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

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 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.

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.

  • How long is the flight from Portland, Maine to Helena?

    Delta and United Airlines can get you from Portland, Maine to Helena in just under 10h 07m. Your travel time can differ by up to 13h 32m. Portland, Maine and Helena are separated by a distance of 2017 mi. This flight may include one or multiple stops.

  • 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 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.

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