Cheap Flights from Portland to Helena

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Find the cheapest month or even day of the year to fly to Helena

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Find the cheapest month to fly from Portland to Helena

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Portland to Helena flights are currently cheapest in September.

Portland to Helena: Alternative routes

Compare routes from Portland to Helena below. You may find an airport to fly into that's cheaper, faster, or easier than Helena.

Portland to Helena: Flight information

The things to know before you go.
Cheapest flight foundRs64,250
Cheapest month to flySeptember

Finding cheap flights from Portland to Helena: Frequently asked questions

The best price we found for a return flight from Portland to Helena is Rs154,202. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from Portland to Helena. But we found flights with one or more stops from Rs154,202.
As of April 2026, there are no flights flying from Portland to Helena.
The cheapest month to fly from Portland to Helena is usually April.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Portland Airport to Helena Airport on Friday, 17 April 2026.
No airlines currently offer direct flights between Portland Airport and Helena Airport. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Helena but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Helena is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, Delta offers the cheapest flight tickets to Helena.

Travelling from Portland International Airport (PDX) to Helena Regional Airport (HLN): what you need to know

  • To ensure you catch your PDX to HLN flight, leave plenty of time for things like check-in and baggage drop. Turning up two hours before international departures and one hour before domestic flights is the general rule.

  • During popular months such as July, it's a good idea to get to the airport earlier than normal. Plan to arrive two hours before domestic departures and four hours ahead for international flights whenever you're travelling during peak periods in general.

  • If you want to check out a different city along the way, search for a flight with a stopover. To see your options for tickets from Portland International Airport to Helena Regional Airport, uncheck 'Direct flights only.' Denver International Airport is a popular stop between PDX and HLN.

How to find the cheapest flights from Portland International Airport (PDX) to Helena Regional Airport (HLN)

  • Rs64,250 is currently the lowest price for a one-way Portland International Airport to Helena Regional Airport flight. A return flight starts at Rs154,202. These prices may change based on demand and availability.

  • Don't wait until the last minute. You're more likely to get cheap tickets from PDX to HLN if you book ahead. Airlines often offer some terrific early bird discounts.

  • Finding cheap flights from Portland International Airport to Helena Regional Airport is more likely if you're flexible with your travel dates. Use the 'Whole month' tool to see the best prices across each month and snap up a great deal.

  • Cut down on the time spent looking for cheap flights from PDX to HLN by creating a Price Alert. We'll send you an email or notification through the app when fares go down.

  • Tailor your flights with filters. Select your ideal departure and arrival times, total journey duration and airlines. You can also sort results by 'Fastest,' 'Best' or 'Cheapest' flights from Portland International Airport to Helena Regional Airport.

Handy information about Portland International Airport (PDX)

  • PDX is located at 7000 NE Airport Way.

  • Portland International Airport gets top marks for its on-time performance. 83.65% of flights that depart PDX arrive at their destination without delay.

  • Central Portland to Portland International Airport is around 19 kilometres. Depending on traffic, it'll take you about 20 minutes to get there if you're driving, ride-sharing or catching a cab.

  • Expect a journey time of about 45 minutes on public transport.

  • Booked an early flight from Portland International Airport to Helena Regional Airport? Avoid rushing to the airport (and get some extra shut-eye) by picking one of these hotels close to PDX:

Arriving at Helena Regional Airport (HLN)

  • If you're arriving on a late Portland International Airport to Helena Regional Airport flight, nothing tops the convenience of being near the terminal. Pick up your bags from the carousel and then be showered and relaxing soon after at one of these hotels near HLN:

  • Travel at your own pace with a Helena Regional Airport rental car. Pick up your wheels from Budget, Enterprise or Avis and venture far and wide through Helena and beyond.

  • To get the best deal, reserve your vehicle from Helena Regional Airport at least a couple of weeks in advance. Rates typically rise as your departure date approaches.

Getting from Helena Regional Airport (HLN) to central Helena

  • You'll find HLN at 2850 Mercer Loop.

  • From Helena Regional Airport, Helena is approximately 6 kilometres away. It takes around 15 minutes to reach the centre driving.

  • If you're using public transport, expect a journey of roughly 1 hour 50 minutes.

When to fly to Helena Regional Airport (HLN)

  • July is the most popular month for flights from Portland International Airport to Helena Regional Airport. For a quieter experience, head to Helena in February.

  • The warmest month in Helena is July, with temperatures ranging between 9ºC and 31ºC. Lock in your flights from Portland International Airport to Helena Regional Airport in this month if this is the type of weather you like.

  • If you like travelling in cooler conditions, search for a cheap ticket from PDX to HLN in December. Temperatures average between -15ºC and 2ºC then.

Explore more of United States

  • Helena has its own special appeal, but there are so many other parts of United States just waiting to be discovered. About 418 kilometres west of Helena, a trip to Spokane will keep you on the go. Check out popular attractions like Manito Park, Northwest Museum of Arts & Culture and Spokane Falls.

  • If you're interested in discovering another major destination in United States, head for Boise, roughly 467 kilometres south-west of Helena. Idaho State Capitol Building, Old Idaho Penitentiary and Zoo Boise are among the biggest draws.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.