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Flights from Monterey to Helena

Find the cheapest flight options from Monterey to Helena over the next three months. Book one-way tickets from KRW 210,121 and round-trip tickets from KRW 550,813.

      • MRY 05:00
        7h 41m
        1 stop
        HLN 13:41
        Monterey - Helena | Sat, Feb 7 | United Airlines
        HLN 14:27
        7h 53m
        1 stop
        MRY 21:20
        Helena - Monterey | Tue, Feb 10 | United Airlines
        KRW 550,813 KRW 2,331,221
        76% OFF
        76% OFF
        KRW 2,331,221 KRW 550,813
      • MRY 05:05
        7h 40m
        1 stop
        HLN 13:45
        Monterey - Helena | Mon, Dec 22 | United Airlines
        HLN 14:26
        7h 51m
        1 stop
        MRY 21:17
        Helena - Monterey | Sat, Dec 27 | United Airlines
        KRW 1,701,791 KRW 2,331,221
        27% OFF
        27% OFF
        KRW 2,331,221 KRW 1,701,791
      • MRY 13:00
        17h 25m
        1 stop
        HLN Invalid Date
        Monterey - Helena | Sun, Dec 14 | Normal Airline
        HLN 15:00
        6h
        Direct
        MRY 16:00
        Helena - Monterey | Tue, Dec 16 | Normal Airline
        Find More Flights
        Find More Flights
      • MRY 05:00
        7h 41m
        1 stop
        HLN 13:41
        Monterey - Helena | Tue, Feb 3 | United Airlines
        KRW 210,121 KRW 428,475
        51% OFF
        51% OFF
        KRW 428,475 KRW 210,121
      • MRY 05:00
        7h 41m
        1 stop
        HLN 13:41
        Monterey - Helena | Fri, Jan 9 | United Airlines
        KRW 253,437 KRW 428,475
        41% OFF
        41% OFF
        KRW 428,475 KRW 253,437
      • MRY 05:05
        7h 42m
        1 stop
        HLN 13:47
        Monterey - Helena | Fri, Dec 12 | United Airlines
        KRW 285,507 KRW 428,475
        33% OFF
        33% OFF
        KRW 428,475 KRW 285,507
      • MRY 05:05
        7h 40m
        1 stop
        HLN 13:45
        Monterey - Helena | Thu, Dec 25 | United Airlines
        KRW 312,787
        27% OFF
        KRW 428,475 KRW 312,787
      • MRY 13:00
        17h 25m
        1 stop
        HLN Invalid Date
        Monterey - Helena | Sun, Dec 14 | Normal Airline
        Find More Flights
        Find More Flights

Displayed flight fares from Monterey to Helena are based on average prices across airlines for the next 3 months, according to the latest Trip.com database.

Flight details for Monterey to Helena

The distance between Monterey and Helena is 1,381.68 km. Based on Trip.com's data, travel demand peaks in November. The off-season for travel is December.

Cheapest one-way flight priceKRW 210,121
Cheapest round-trip ticket priceKRW 550,813
Off-season for travelDecember
Peak season for travelNovember
Flight distance1,381.68 km

Find the best time to fly from Monterey to Helena

The cheapest time for Monterey to Helena flights: Feb 1 to Feb 8 — one way flight prices from KRW 210,121.

Cheapest flights
From price
Search
  • 714
  • 1421
  • 2128

  • Jan

    284
  • 411
  • 1118
  • 1825

  • Feb

    251
  • 18
  • 815
  • 1522

  • Mar

    221
Displayed fare trends are based on Trip.com's aggregated average of the lowest flight prices from Monterey to Helena, calculated over the upcoming 10 weeks.

Flight FAQs

  • What are the cheapest flights from Monterey to Helena (MRY-HLN)?

    Based on Trip.com data, United Airlines offers one-way fares as low as KRW 210,121 on Cheapest nonstop routes (e.g. MRY to HLN on Tue, Feb 3), while United Airlines offers Cheapest nonstop round-trips from KRW 550,813 departing on Sat, Feb 7 and returning on Tue, Feb 10.
  • By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Monterey to Helena is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.
  • To find best deals on flights from Monterey to Helena, you can use various tools on Trip.com:
    · Be flexible with your travel dates to get the cheapest flight deal. Now the cheapest flight deal is on Tue, Feb 3, with one-way flights priced at just KRW 210,121.
    · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is United Airlines.
    · Set up price alerts to easily monitor ticket prices without having to check every day.
    · Check Trip.com flight deals and promo codes frequently.
    · Avoid peak season unless you book very early. It seems the peak season for Helena travel is around November.
    · Get exclusive promo codes for Trip.com app users.
  • The cheapest months to fly from Monterey to Helena is December, when demand for travel is lower.
  • After crunching the numbers on our December flight calendar, it's currently cheapest to fly from Monterey to Helena on December 22, 2025 with United Airlines, with prices starting at KRW 1,701,790.
  • The time difference between Helena and Monterey is 1h.
  • Tickets can only be changed or canceled if permitted by airline policy. To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy. However, if the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.