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Flights from Sidney to Helena
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Flights from Sidney to Helena Starting at NZD 1,223

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

  • Round-trip
      • SDY17:13
        21h 36m
        2 stops
        HLN14:49
        Tue, Dec 31|Sidney - Helena|Cape Air
        HLN16:41
        16h 17m
        2 stops
        SDY08:58
        Mon, Jan 6|Helena - Sidney|Alaska Airlines
        NZD 1,223NZD 1,733
        28% OFF
        28% OFF
        NZD 1,733NZD 1,223

        Choose Cape Air flights from Sidney to Helena. The one-way connecting flight with Cape Air departs from Sidney-Richland Municipal Airport on Tue, Dec 31-Mon, Jan 6, arriving at Helena Regional Airport. One-way Prices start from NZD 1,223 including taxes and charges.

      • SDY17:13
        21h 55m
        2 stops
        HLN15:08
        Thu, Dec 5|Sidney - Helena|Cape Air
        HLN16:07
        16h 51m
        2 stops
        SDY08:58
        Wed, Dec 11|Helena - Sidney|Alaska Airlines
        NZD 1,259NZD 1,733
        27% OFF
        27% OFF
        NZD 1,733NZD 1,259

        Choose Cape Air flights from Sidney to Helena. The one-way connecting flight with Cape Air departs from Sidney-Richland Municipal Airport on Thu, Dec 5-Wed, Dec 11, arriving at Helena Regional Airport. One-way Prices start from NZD 1,259 including taxes and charges.

      • SDY09:25
        36h 6m
        2 stops
        HLN21:31
        Wed, Dec 25|Sidney - Helena|Cape Air
        HLN14:25
        23h 29m
        2 stops
        SDY13:54
        Tue, Dec 31|Helena - Sidney|United Airlines
        NZD 1,401NZD 1,733
        19% OFF
        19% OFF
        NZD 1,733NZD 1,401

        Choose Cape Air flights from Sidney to Helena. The one-way connecting flight with Cape Air departs from Sidney-Richland Municipal Airport on Wed, Dec 25-Tue, Dec 31, arriving at Helena Regional Airport. One-way Prices start from NZD 1,401 including taxes and charges.

      • SDY07:35
        37h 56m
        2 stops
        HLN21:31
        Sun, Dec 29|Sidney - Helena|Cape Air
        HLN14:25
        42h 33m
        2 stops
        SDY08:58
        Sat, Jan 4|Helena - Sidney|United Airlines
        NZD 1,530
        NZD 1,530

        Choose Cape Air flights from Sidney to Helena. The one-way connecting flight with Cape Air departs from Sidney-Richland Municipal Airport on Sun, Dec 29-Sat, Jan 4, arriving at Helena Regional Airport. One-way Prices start from NZD 1,530 including taxes and charges.

      • SDY17:13
        45h 36m
        2 stops
        HLN14:49
        Mon, Dec 30|Sidney - Helena|Cape Air
        HLN15:29
        41h 29m
        2 stops
        SDY08:58
        Sun, Jan 5|Helena - Sidney|Alaska Airlines
        NZD 1,542
        NZD 1,542

        Choose Cape Air flights from Sidney to Helena. The one-way connecting flight with Cape Air departs from Sidney-Richland Municipal Airport on Mon, Dec 30-Sun, Jan 5, arriving at Helena Regional Airport. One-way Prices start from NZD 1,542 including taxes and charges.

      • SDY13:00
        3h 5m
        Nonstop
        HLN14:00
        Thu, Dec 12|Sidney - Helena|Cape Air
        Find More Flights
        Find More Flights

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

Find the best time to fly from Sidney to Helena

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Displayed prices are calculated based on the cheapest average weekly prices of the corresponding route on Trip.com.

Alternative Routes from Sidney to Helena

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

  • Cheapest
    Cape Air
    SDY
    17:13
    21h 36m
    4 transfer
    HLN
    14:49
    Sidney-Richland Municipal Airport - Helena Regional Airport
    Tue, Dec 31Cape Air
    NZD 1,223
  • Cape Air
    SDY
    17:13
    21h 36m
    4 transfer
    HLN
    14:49
    Sidney-Richland Municipal Airport - Helena Regional Airport
    Tue, Dec 31Cape Air
    NZD 1,223
    Find More Flights

FAQ

  • When are flight tickets from Sidney (SDY) to Helena (HLN) the cheapest?

    Airlines adjust prices for flights from Sidney to Helena based on the departure date and time of your selection. By analyzing data from all airlines, we've discovered that on Trip.com, you can find the lowest flight prices on Tuesdays, Wednesdays, and Saturdays.

  • How much do flights from Sidney (SDY) to Helena (HLN) cost?

    According to Trip.com's data, the lowest price is around NZD 1,209.

How to find a cheap flight from Sidney to Helena

Wait until the last minute and flight costs are often sky-high. Plan ahead, book the right way, and your savings can soar. We have loads of saving tips to help you find a cheap flight from Sidney to Helena. Book your flights at the right time and save more.
1
Book Early
Once prices are gone, they're gone. Lock in deals while you can!
2
Compare Flight Prices
Compare prices on travel agency and airline websites.
3
Look Out for Deals
Check airline and travel agency websites for latest flight deals
4
Check One-way Fares
Buying two cheap one-way flights can sometimes be a better deal than a round-trip.
5
Try Different Dates
Flying during the week, early in the morning, or late at night can help save money.
6
Use the Trip.com App
Save up to £10 per person when booking your flights on Trip.com

Flight Information from Sidney to Helena

Off-season for travelAugust
Peak season for travelOctober
Flight distance601 km
Popular airlineCape Air

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