When did momondo last update prices for flights from Portland Airport to Helena Airport?

Prices for flights from Portland Airport to Helena Airport are refreshed on a daily basis.

How old do you have to be to fly from Portland Airport to Helena Airport?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Portland Airport to Helena Airport.

What documentation or ID do you need to fly to Helena Airport?

The travel and health documents required for your trip to Helena Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Helena Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$654 Cheap Flights from Portland, Maine to Helena in 2026/27

Find the cheapest flights from Portland, Maine to Helena

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

3:23 pm - 9:31 pmPWM Portland-HLN Helena

8h 08m1 stop Denver Intl

2:23 pm - 10:07 amHLN Helena-PWM Portland

17h 44m3 stops Denver Intl Buffalo Washington, D.C. Dulles Intl

$654United Airlines

Sat, Nov 14 - Tue, Nov 17

10:50 am - 9:31 pmPWM Portland-HLN Helena

12h 41m2 stops Newark Denver Intl

2:23 pm - 10:07 amHLN Helena-PWM Portland

17h 44m3 stops Denver Intl Buffalo Washington, D.C. Dulles Intl

$660United Airlines

Sat, Nov 14 - Tue, Nov 17

3:23 pm - 9:31 pmPWM Portland-HLN Helena

8h 08m1 stop Denver Intl

6:28 am - 4:02 pmHLN Helena-PWM Portland

7h 34m1 stop Denver Intl

$678United Airlines

Sat, Nov 14 - Tue, Nov 17

8:45 am - 9:31 pmPWM Portland-HLN Helena

14h 46m2 stops Chicago O'Hare Intl Denver Intl

6:28 am - 4:02 pmHLN Helena-PWM Portland

7h 34m1 stop Denver Intl

$683United Airlines

Sat, Nov 14 - Tue, Nov 17

9:40 am - 9:32 pmPWM Portland-HLN Helena

13h 52m2 stops Washington, D.C. Dulles Intl Denver Intl

6:15 am - 9:03 pmHLN Helena-PWM Portland

12h 48m2 stops Denver Intl Newark

$688United Airlines

Wed, Jan 6 - Sat, Jan 9

9:40 am - 9:32 pmPWM Portland-HLN Helena

13h 52m2 stops Washington, D.C. Dulles Intl Denver Intl

6:15 am - 6:53 pmHLN Helena-PWM Portland

10h 38m2 stops Denver Intl Newark

$729United Airlines

Wed, Jan 6 - Sat, Jan 9

9:40 am - 9:32 pmPWM Portland-HLN Helena

13h 52m2 stops Washington, D.C. Dulles Intl Denver Intl

2:27 pm - 11:32 pmHLN Helena-PWM Portland

31h 05m3 stops Denver Intl Kansas City Newark

$821United Airlines

Wed, Jan 6 - Sat, Jan 9

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United Airlines flights from Portland, Maine to Helena

Our best United Airlines deals on Portland, Maine to Helena flight tickets

United Airlines

Nov 14

PWM3:23 pmPortland

8h 08m

1 stop

HLN9:31 pmHelena

Nov 17

HLN2:23 pmHelena

17h 44m

3 stops

PWM10:07 amPortland

$654

United Airlines

Nov 14

PWM10:50 amPortland

12h 41m

2 stops

HLN9:31 pmHelena

Nov 17

HLN2:23 pmHelena

17h 44m

3 stops

PWM10:07 amPortland

$660

United Airlines

Nov 14

PWM3:23 pmPortland

8h 08m

1 stop

HLN9:31 pmHelena

Nov 17

HLN6:28 amHelena

7h 34m

1 stop

PWM4:02 pmPortland

$678

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PortlandHelena

PWM Portland - HLN Helena

PWMHLN

Portland

Sat 11/14

3:23 pm-9:31 pm

1 stop8h 08m

Helena

Tue 11/17

2:23 pm-10:07 am

3 stops17h 44m

$654

PortlandHelena

PWM Portland - HLN Helena

PWMHLN

Portland

Sat 11/14

10:50 am-9:31 pm

2 stops12h 41m

Helena

Tue 11/17

2:23 pm-10:07 am

3 stops17h 44m

$660

Quickest round-trip

PortlandHelena

PWM Portland - HLN Helena

PWMHLN

Portland

Sat 11/14

3:23 pm-9:31 pm

1 stop8h 08m

Helena

Tue 11/17

6:28 am-4:02 pm

1 stop7h 34m

$678

PortlandHelena

PWM Portland - HLN Helena

PWMHLN

Portland

Sat 11/14

8:45 am-9:31 pm

2 stops14h 46m

Helena

Tue 11/17

6:28 am-4:02 pm

1 stop7h 34m

$683

PortlandHelena

PWM Portland - HLN Helena

PWMHLN

Portland

Wed 1/6

9:40 am-9:32 pm

2 stops13h 52m

Helena

Sat 1/9

6:15 am-9:03 pm

2 stops12h 48m

$688

PortlandHelena

PWM Portland - HLN Helena

PWMHLN

Portland

Wed 1/6

9:40 am-9:32 pm

2 stops13h 52m

Helena

Sat 1/9

6:15 am-6:53 pm

2 stops10h 38m

$729

PortlandHelena

PWM Portland - HLN Helena

PWMHLN

Portland

Wed 1/6

9:40 am-9:32 pm

2 stops13h 52m

Helena

Sat 1/9

2:27 pm-11:32 pm

3 stops31h 05m

$821

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

How to get the cheapest flight ticket from Portland, Maine to Helena

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What airlines fly to Helena?

JetBlue, Delta and United Airlines are the top three most popular airlines that fly to Helena from Portland, Maine according to our data. JetBlue is the first choice among our users, with 33% of people opting to fly with this airline when traveling to Helena. Keep in mind that there are 6 different airlines that fly to Helena on a routine basis, so you have a few additional options to choose from.

When to book flights from Portland, Maine to Helena

Are you open to changing your travel dates? Check out the ideal times to fly from Portland, Maine to Helena according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Portland, Maine to Helena (PWM to HLN) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Portland, Maine to Helena

Best Price Found	$654
Fastest flight time	13h 52m
Direct flights	None

The best flight deal from Portland, Maine to Helena found on momondo in the last 72 hours is $654

The fastest flight from Portland, Maine to Helena takes 13h 52m

There are no direct flights from Portland, Maine to Helena. There are no popular flight routes from Portland, Maine to Helena.

Search flight deals

Frequently asked questions about flying from Portland, Maine to Helena

How far is Portland to Helena by plane?
There are 2021.4 mi between Portland and Helena. Typically, this will take 13h 52m by plane in normal conditions.
When did momondo last update prices for flights from Portland Airport to Helena Airport?
Prices for flights from Portland Airport to Helena Airport are refreshed on a daily basis.
How old do you have to be to fly from Portland Airport to Helena Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Portland Airport to Helena Airport.
What documentation or ID do you need to fly to Helena Airport?
The travel and health documents required for your trip to Helena Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Helena Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Why use momondo?

Why should I use momondo to find a flight deal from Portland to Helena?

It is quick and easy to find Portland to Helena flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Helena that suits you.

Can I find flights from Portland to Helena with flexible booking policies on momondo?

Yes. All flights to Helena from Portland on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Portland to Helena?

Once all potential Portland to Helena flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Portland to Helena right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Portland to Helena flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.