$176 Cheap Flights from New York (LGA) to Great Falls (GTF)

View $176 flight on Tue, Nov 4, 2025Opens in a new window

Popular airlines from LaGuardia Airport (LGA) to Great Falls, MT (GTF-Great Falls Intl.)

  • Plan, book, fly with confidence

  • trending down icon

    Be in the know

    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon

    Book smarter

    Save up to 30% on select hotels after you book a flight*
  • one key icon

    Earn twice

    Earn your airline miles on top of our OneKeyCash
    Learn about One Key

Cheap Flights from New York to Great Falls (LGA-GTF)

Prices were available within the past 7 days and start at $176 for one-way flights and $366 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Sat, Aug 30 - Wed, Sep 3
LGA
New York
GTF
Great Falls
$366 Roundtrip, found 2 hours ago
$366
Roundtrip
found 2 hours ago
Select United flight, departing Sat, Aug 30 from New York to Great Falls, returning Wed, Sep 3, priced at $366 found 2 hours ago
Delta
Wed, Sep 3 - Tue, Sep 16
LGA
New York
GTF
Great Falls
$371 Roundtrip, found 4 days ago
$371
Roundtrip
found 4 days ago
Select Delta flight, departing Wed, Sep 3 from New York to Great Falls, returning Tue, Sep 16, priced at $371 found 4 days ago
United
Sat, Aug 30 - Wed, Sep 3
LGA
New York
GTF
Great Falls
$383 Roundtrip, found 2 hours ago
$383
Roundtrip
found 2 hours ago
Select United flight, departing Sat, Aug 30 from New York to Great Falls, returning Wed, Sep 3, priced at $383 found 2 hours ago
United
Wed, Aug 27 - Sun, Aug 31
LGA
New York
GTF
Great Falls
$386 Roundtrip, found 7 hours ago
$386
Roundtrip
found 7 hours ago
Select United flight, departing Wed, Aug 27 from New York to Great Falls, returning Sun, Aug 31, priced at $386 found 7 hours ago
United
Sat, Aug 30 - Wed, Sep 3
LGA
New York
GTF
Great Falls
$394 Roundtrip, found 2 hours ago
$394
Roundtrip
found 2 hours ago
Select United flight, departing Sat, Aug 30 from New York to Great Falls, returning Wed, Sep 3, priced at $394 found 2 hours ago
United
Wed, Aug 27 - Sun, Aug 31
LGA
New York
GTF
Great Falls
$396 Roundtrip, found 7 hours ago
$396
Roundtrip
found 7 hours ago
Select United flight, departing Wed, Aug 27 from New York to Great Falls, returning Sun, Aug 31, priced at $396 found 7 hours ago
Delta
Sun, Aug 31 - Tue, Sep 9
LGA
New York
GTF
Great Falls
$398 Roundtrip, found 2 days ago
$398
Roundtrip
found 2 days ago
Select Delta flight, departing Sun, Aug 31 from New York to Great Falls, returning Tue, Sep 9, priced at $398 found 2 days ago
United
Sun, Aug 31 - Tue, Sep 9
LGA
New York
GTF
Great Falls
$407 Roundtrip, found 2 days ago
$407
Roundtrip
found 2 days ago
Select United flight, departing Sun, Aug 31 from New York to Great Falls, returning Tue, Sep 9, priced at $407 found 2 days ago
United
Sun, Aug 31 - Tue, Sep 9
LGA
New York
GTF
Great Falls
$412 Roundtrip, found 2 days ago
$412
Roundtrip
found 2 days ago
Select United flight, departing Sun, Aug 31 from New York to Great Falls, returning Tue, Sep 9, priced at $412 found 2 days ago
United
Fri, Oct 17 - Tue, Oct 21
LGA
New York
GTF
Great Falls
$414 Roundtrip, found 7 hours ago
$414
Roundtrip
found 7 hours ago
Select United flight, departing Fri, Oct 17 from New York to Great Falls, returning Tue, Oct 21, priced at $414 found 7 hours ago
Flights from New York (LGA) to Great Falls (GTF)
Origin airport
LaGuardia
Destination airport
Great Falls Intl.
Airlines serving
Delta, United
Roundtrip price
$365
Distance
1895 mi

New York to Great Falls Flights

The cheapest times to fly from New York to Great Falls

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from New York to Great Falls are during the month of August. You can find some of the cheapest flights from New York to Great Falls with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from New York to Great Falls

Sunday is one of the best days to book for cheap flights from New York to Great Falls: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from New York to Great Falls

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from New York to Great Falls in 2025. You can also book with separate airlines for your outbound and return journeys, from $176 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap New York to Great Falls flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your New York to Great Falls airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from LaGuardia Airport (LGA) to Great Falls Intl. Airport (GTF) cost?
Snag a cheap one-way flight from $176 or cheap return flight from $366 from LaGuardia Airport (LGA) to Great Falls Intl. Airport (GTF) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from LaGuardia Airport (LGA) to Great Falls Intl. Airport (GTF)?
Traveling in August may help you find better deals, as it's the cheapest month for flights between LGA and GTF. You'll typically find the lowest prices during off-peak months.
What is the cheapest airline that flies from LaGuardia Airport (LGA) to Great Falls Intl. Airport (GTF)?
To find the cheapest airline that'll fly you from LGA to GTF, use Expedia's filter tool. Customize your search based on your travel style, such as preferred carriers and flight duration. You can then sort your results by "Price (lowest to highest)" to see the cheapest fares upfront.
How many flights per day from LaGuardia Airport (LGA) to Great Falls Intl. Airport (GTF)?
There aren't any daily direct flights from LaGuardia Airport (LGA) to Great Falls Intl. Airport (GTF). But you can opt for flights with layovers. Filter your search on Expedia to include one or two stops, and you'll be soaring above the clouds in no time at all.
What day of the week has the most flights from LGA to GTF?
Friday is usually the busiest day for flights, while Tuesday tends to be the quietest.* Keep in mind that flight schedules can change based on a number of factors, including the airline and season.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from LaGuardia Airport (LGA) to Great Falls Intl. Airport (GTF)?
Choose a flight from LaGuardia Airport (LGA) to Great Falls Intl. Airport (GTF) that leaves before 3 PM to reduce the likelihood of delays and cancellations. Departures after this hour are on average 22% more likely to be canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from LaGuardia Airport (LGA) to Great Falls Intl. Airport (GTF) last-minute?
Waiting until right before your break to book a ticket from LGA to GTF generally means paying more. Although you may find some last-minute discounts, they aren't always guaranteed. Allow some flexibility in your schedule for a better chance of getting a bargain.
Is it cheaper to book a LGA to GTF flight and hotel package?
Compared with arranging flights and hotels separately, booking a LGA to GTF flight and hotel package with Expedia could lead to significant savings. Better still, having everything in one easy place takes the hassle out of planning your trip. Simply secure your flights and select from our wide range of hotels, then personalize your trip with other add-ons like tours, car rentals and activities.
Can I cancel or change the date of my flight from LaGuardia Airport (LGA) to Great Falls Intl. Airport (GTF)?
If you reserved your LGA to GTF flight within the last 24 hours, you may be able to cancel or modify it at no cost. Depending on the airline and the ticket type you purchased, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, go to our Customer Service portal for more information.

Explore a world of travel with Expedia

*Available to One Key members.