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Cheap Flights from Lewiston to Great Falls

Explore the cheapest one-way and round-trip flights from Lewiston to Great Falls over the next 90 days, with one-way fares from S$ 328 and round-trip from S$ 1,509. Based on Trip.com's latest 7-day flight data.

      • LWS 12:14
        4h 27m
        1 stop
        GTF 17:41
        Lewiston - Great Falls | Mon, Sep 21 | Delta Air Lines
        GTF 18:21
        18h 13m
        1 stop
        LWS 11:34
        Great Falls - Lewiston | Fri, Sep 25 | Delta Air Lines
        S$ 1,509 S$ 1,797
        16% off
        16% off
        S$ 1,797 S$ 1,509
      • LWS 13:00
        17h 25m
        1 stop
        GTF 14:00
        Lewiston - Great Falls | Sat, Sep 12 | Normal Airline
        GTF 15:00
        6h
        Direct
        LWS 16:00
        Great Falls - Lewiston | Mon, Sep 14 | Normal Airline
        Find more flights
        Find more flights
      • LWS 12:14
        23h 21m
        1 stop
        GTF 12:35
        Lewiston - Great Falls | Sun, Oct 4 | Delta Air Lines
        S$ 328 S$ 392
        16% off
        16% off
        S$ 392 S$ 328
      • LWS 12:14
        23h 21m
        1 stop
        GTF 12:35
        Lewiston - Great Falls | Sat, Sep 19 | Delta Air Lines
        S$ 329 S$ 392
        16% off
        16% off
        S$ 392 S$ 329
      • LWS 13:00
        17h 25m
        1 stop
        GTF 14:00
        Lewiston - Great Falls | Sat, Sep 12 | Normal Airline
        Find more flights
        Find more flights

Flying from Lewiston to Great Falls

The distance between Lewiston and Great Falls is approximately 446.47km. Based on Trip.com's data, travel demand peaks in July. The off-season for travel is August.

Cheapest one-way flight price S$ 328
Cheapest return ticket price S$ 1,509
Off-season for travel August
Peak season for travel July
Flight distance 446.47km
Flight statistics for the Lewiston–Great Falls route are based on aggregated booking data from Trip.com over the past 12 months.

Frequently Asked Questions

  • Which airlines offer the cheapest flights from Lewiston to Great Falls?

    Based on Trip.com data, Delta Air Lines offers Cheapest nonstop one-way flights from S$ 328 (for example, LWS–GTF on Sun, Oct 4). For a Cheapest nonstop return flight, Delta Air Lines offers fares from S$ 1,509, departing on Mon, Sep 21 and returning on Fri, Sep 25.
  • By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Lewiston to Great Falls 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.
  • Here are some tips for finding the best flight deals from Lewiston to Great Falls on Trip.com:
    · Be flexible with your travel dates. The cheapest flight is currently on Sun, Oct 4, with one-way fares from just S$ 328.
    · Compare airlines. Delta Air Lines currently offers the lowest fares on this route.
    · Set up a price alert to track fare changes without searching every day.
    · Check Trip.com regularly for flight deals and available promo codes.
    · Avoid peak season or book early. July is generally the busiest month for travel to Great Falls.
    · Get exclusive promo codes on the Trip.com app.
  • The cheapest month to book a flight from Lewiston to Great Falls is usually August, when demand is lower.
  • After crunching the numbers on our September flight calendar, it's currently cheapest to fly from Lewiston to Great Falls on September 20, 2026 with Delta Air Lines, with prices starting at S$ 1,509.
  • The time difference between Great Falls and Lewiston is 1h.
  • Tickets can only be changed or cancelled 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.
  • Based on Trip.com data for flights departing in the next 30 days, the average one-way fare from Lewiston to Great Falls is S$ 329. Fares vary by travel date, airline and availability.
  • Enter Lewiston and Great Falls, choose your travel dates and passengers, then compare flights by price, duration and baggage. Select a fare, review the change and cancellation rules, enter traveller details and complete payment to receive your confirmation.

Find Cheap Flights & Deals on Trip.com

Note: Prices shown on this page are the lowest estimated prices found in the last 24 hours and include all taxes and fees.

Book with no extra fees

Prices displayed on this page are all-inclusive (incl. taxes, fuel surcharges, Civil Aviation Development Fund, etc.), and all fees are shown before payment. Charges for checked baggage, meals, Wi-Fi, and other optional services may also appear in the flight cards.

Real-time pricing updates

Prices, availability, and travel information on this page have been updated within the last 24 hours, and with many routes refreshed in real time. The more popular the route, the more accurate the data.

Change & Cancellation Policy

Trip.com shows the change and cancellation rules for each ticket during the booking process, including all related fees and conditions. Please refer to the following scenarios:
Voluntary cancellation/change:
To request a change or cancellation, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and flight segment, and submit your request. Please note that additional charges may apply based on the airline’s fare rules.
Cancellation/change due to a flight schedule change:
If your flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For full details of change and cancellation policies, please refer to the customer support pages.