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Flights from Helena to Portland Starting at AU$ 240

We've found these cheap flights for you. You can book one-way or return flight tickets.

  • One way
  • Return

Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.

Find the best time to fly from Helena to Portland

We monitor flight fares to help you find the best deals effortlessly

Displayed prices are calculated based on the cheapest average weekly prices of the corresponding route on Trip.com.
Airlines Flying from Helena to Portland

Compare prices, find the option that best suits your travel needs, and enjoy a comfortable journey with a trusted airline.

Alaska Airlines
From AU$ 240
Delta Air Lines
From AU$ 333
United Airlines
From AU$ 374
ANA airlines

Find more flights and airlines

Alternative Routes from Helena to Portland

Searching for potential routes that might be cheaper and faster? Check out these alternative flights from Helena to Portland.

  • Cheapest
    Alaska Airlines
    HLN
    07:00
    3h 41m
    1 transfer
    PDX
    09:41
    Helena Regional Airport - Portland International Airport
    Thu, Jun 13Alaska Airlines
    AU$ 240
  • Alaska Airlines
    HLN
    07:00
    3h 41m
    1 transfer
    PDX
    09:41
    Helena Regional Airport - Portland International Airport
    Thu, Jun 13Alaska Airlines
    AU$ 240
    Find More Flights

How do I find the cheapest flights?

  • When are flight from Helena (HLN) to Portland (PDX) the cheapest?

    Airlines adjust prices for flights from Helena to Portland based on the date and time of your booking. By analyzing data from all airlines, on Trip.com, you can find the lowest flight prices on Tuesdays, Wednesdays, and Saturdays.
  • How much are flights from Helena (HLN) to Portland (PDX) cost?

    According to Trip.com's data, the lowest price is around AU$ 699.
  • How many airports in Portland (PDX)?

    There are 3 airport(s) in Portland (PDX): Hillsboro Airport, Portland International Airport and Portland-Troutdale Airport.

Flight Information from Helena to Portland

Cheapest direct flight price

AU$ 239

Off-season for travel

November

Peak season for travel

October