--- title: "Great Falls (GTF) airport: direct flights & routes" description: "Flights to and from Great Falls (GTF): 5 nonstop destinations on 4 airlines, including Denver, Salt Lake City and Seattle. See who flies each one on 2LNR." canonical: "https://2lnr.com/routes/gtf" url: "https://2lnr.com/routes/gtf.md" date_modified: "2026-10-23T14:17:50Z" --- # Direct flights from Great Falls (GTF) Great Falls International Airport (GTF) is a small station with nonstop service to 5 destinations, flown by 4 airlines, led by Allegiant Air, Alaska Airlines, and Delta Air Lines. The busiest nonstop from Great Falls goes to Denver. Where 2LNR tracks Alaska Airlines and Delta Air Lines on a nonstop from GTF, it shows upgrade or award space by date. Route data refreshed October 23, 2026. Routes and carriers reflect the schedule data behind 2LNR's route map. Updated October 23, 2026. Explore Great Falls routes on the interactive map [Get started free](https://2lnr.com/login) 5 Nonstop destinations 4 Airlines serving GTF Free To get started ## About Great Falls International Airport (GTF) Great Falls International Airport (GTF) is the airport serving Great Falls, United States. Its ICAO code is KGTF. Departure and arrival times at GTF are local to the America/Denver time zone. Every one of its 5 nonstop destinations is inside United States. ## Confirmed upgrade & award space on Great Falls routes 2LNR tracks confirmed upgrade and award space on Alaska Airlines and Delta Air Lines, segment by segment and date by date. Pick any Great Falls destination below to open a calendar of departures, the next 14 days free on every product and the full horizon on Pro. ### See real availability Confirmed upgrade or award seats by date on the GTF routes 2LNR tracks, checked against live inventory so you know what's open before you book. ### Set an alert Premium inventory turns over fast. Watch a tracked Great Falls route on Pro and 2LNR notifies you when space appears. ### Plan on the map Explore every GTF nonstop on the interactive route map, with connections and route statistics. ## All nonstop destinations from Great Falls (GTF) These are the city pairs behind flights to and from Great Falls: 5 nonstop destinations with active service at Great Falls International Airport. Each route links to its own page, with confirmed upgrade or award space by date where 2LNR tracks the carrier. - [Great Falls to Denver flights (GTF-DEN)](https://2lnr.com/routes/gtf-den.md): United Airlines\ [Return: Denver to Great Falls](https://2lnr.com/routes/den-gtf.md) - [Great Falls to Las Vegas flights (GTF-LAS)](https://2lnr.com/routes/gtf-las.md): Allegiant Air\ [Return: Las Vegas to Great Falls](https://2lnr.com/routes/las-gtf.md) - [Great Falls to Mesa flights (GTF-AZA)](https://2lnr.com/routes/gtf-aza.md): Allegiant Air\ [Return: Mesa to Great Falls](https://2lnr.com/routes/aza-gtf.md) - [Great Falls to Salt Lake City flights (GTF-SLC)](https://2lnr.com/routes/gtf-slc.md): Delta Air Lines\ [Return: Salt Lake City to Great Falls](https://2lnr.com/routes/slc-gtf.md) - [Great Falls to Seattle flights (GTF-SEA)](https://2lnr.com/routes/gtf-sea.md): Alaska Airlines\ [Return: Seattle to Great Falls](https://2lnr.com/routes/sea-gtf.md) Explore GTF routes on the interactive map → ## Nonstop flights to Great Falls (GTF) 6 airports have nonstops to Great Falls International Airport in 2LNR's schedule data. Here they are, with the airlines that fly each route. - [Chicago to Great Falls flights (ORD-GTF)](https://2lnr.com/routes/ord-gtf.md): United Airlines - [Denver to Great Falls flights (DEN-GTF)](https://2lnr.com/routes/den-gtf.md): United Airlines - [Las Vegas to Great Falls flights (LAS-GTF)](https://2lnr.com/routes/las-gtf.md): Allegiant Air - [Mesa to Great Falls flights (AZA-GTF)](https://2lnr.com/routes/aza-gtf.md): Allegiant Air - [Salt Lake City to Great Falls flights (SLC-GTF)](https://2lnr.com/routes/slc-gtf.md): Delta Air Lines - [Seattle to Great Falls flights (SEA-GTF)](https://2lnr.com/routes/sea-gtf.md): Alaska Airlines ## Airlines that fly out of Great Falls (GTF) The carriers with nonstop service from Great Falls International Airport, ordered by how many destinations each one reaches. Each links to that airline's full route map. - [Allegiant Air (G4)](https://2lnr.com/routes/airlines/g4.md) - [Alaska Airlines (AS)](https://2lnr.com/routes/airlines/as.md) - [Delta Air Lines (DL)](https://2lnr.com/routes/airlines/dl.md) - [United Airlines (UA)](https://2lnr.com/routes/airlines/ua.md) ## Alternative airports near Great Falls (GTF) Nearby airports with nonstop service of their own, closest first. Distances are great-circle between the two airports' coordinates, not driving time, so check the ground connection before you treat one as a substitute. - [Helena (HLN)](https://2lnr.com/routes/hln.md) (67 miles, 3 nonstop destinations) - [Havre (HVR)](https://2lnr.com/routes/hvr.md) (105 miles, 1 nonstop destination) - [Butte (BTM)](https://2lnr.com/routes/btm.md) (118 miles, 2 nonstop destinations) - [Bozeman (BZN)](https://2lnr.com/routes/bzn.md) (118 miles, 24 nonstop destinations) - [Missoula (MSO)](https://2lnr.com/routes/mso.md) (133 miles, 13 nonstop destinations) - [Kalispell (FCA)](https://2lnr.com/routes/fca.md) (145 miles, 16 nonstop destinations) [United States flights by airport](https://2lnr.com/routes/to/united-states.md) - [How Alaska upgrades clear](https://2lnr.com/about/as/upgrades.md) - [How to read award availability by date](https://2lnr.com/guides/award-availability.md) ## Frequently asked questions about Great Falls (GTF) **How many nonstop destinations does Great Falls International Airport (GTF) serve?** Great Falls International Airport has active nonstop service to 5 destinations in 2LNR's schedule data. The busiest markets from GTF are Denver, Salt Lake City, and Seattle. The full list, with who flies each route and, where 2LNR tracks the carrier, upgrade and award space by date, is on this page. **Which airlines fly out of Great Falls (GTF)?** The carriers with nonstop service from Great Falls International Airport are listed in full on this page, each linked to its own route map. Allegiant Air, Alaska Airlines, and Delta Air Lines run the most routes from Great Falls, in that order. In 2LNR's schedule data that is 4 airlines in total. **How many airlines fly out of GTF?** 2LNR's schedule data currently shows 4 airlines with at least one nonstop route from Great Falls (GTF). That figure counts the carrier operating the flight rather than every carrier that sells a seat on it, so a codeshare marketed by a partner is not counted twice, and it moves with the season. **How do I check upgrade or award availability from GTF?** Pick any destination on this page, such as Salt Lake City, to open a calendar of GTF departures with confirmed upgrade and award space on Alaska Airlines and Delta Air Lines by date, the next 14 days free on every product and the full horizon on Pro. On Pro you can also set an alert so 2LNR notifies you when space opens. **Does 2LNR track flights from GTF?** Yes. Every nonstop route from Great Falls International Airport in 2LNR's schedule data is listed, 5 destinations in total, and on the routes flown by Alaska Airlines and Delta Air Lines what is shown is confirmed availability rather than a forecast, the next 14 days free on every product and the full horizon on Pro. **Where can you fly nonstop from Great Falls (GTF)?** From Great Falls (GTF), 2LNR's schedule data shows nonstop flights to Denver, Las Vegas, Mesa, Salt Lake City, and Seattle. This page lists every one, with the airlines that fly it. ## Never miss GTF upgrade or award space See what's open by date on these routes, the next 14 days free on every product and the full horizon on Pro. [Get started free](https://2lnr.com/login)