--- title: "Louisville (SDF) airport: direct flights & routes" description: "Flights to and from Louisville (SDF): 36 nonstop destinations on 5 airlines, including Dallas, Chicago and Atlanta. See who flies each one on 2LNR." canonical: "https://2lnr.com/routes/sdf" url: "https://2lnr.com/routes/sdf.md" date_modified: "2026-10-23T14:17:50Z" --- # Direct flights from Louisville (SDF) From Louisville International Airport (SDF), 5 airlines fly nonstop to 36 destinations, led by American Airlines, Delta Air Lines, and Allegiant Air. The busiest nonstops from Louisville go to Dallas, Chicago, and Atlanta. 2LNR monitors confirmed space on the Louisville routes flown by American Airlines and Delta Air Lines so you can act while it's still available. Route data refreshed October 23, 2026. Routes and carriers reflect the schedule data behind 2LNR's route map. Updated October 24, 2026. Explore Louisville routes on the interactive map [Get started free](https://2lnr.com/login) 36 Nonstop destinations 5 Airlines serving SDF Free To get started ## About Louisville International Airport (SDF) Louisville International Airport (SDF) is the airport serving Louisville, Kentucky, United States. Its ICAO code is KSDF. Departure and arrival times at SDF are local to the America/Kentucky/Louisville time zone. Its nonstop network reaches 36 destinations across 2 countries. ## Confirmed upgrade & award space on Louisville routes 2LNR tracks confirmed upgrade and award space on American Airlines and Delta Air Lines, segment by segment and date by date. Pick any Louisville 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 SDF 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 Louisville route on Pro and 2LNR notifies you when space appears. ### Plan on the map Explore every SDF nonstop on the interactive route map, with connections and route statistics. ## All nonstop destinations from Louisville (SDF) These are the city pairs behind flights to and from Louisville: 36 nonstop destinations with active service at Louisville International Airport. Each route links to its own page, with confirmed upgrade or award space by date where 2LNR tracks the carrier. - [Louisville to Atlanta flights (SDF-ATL)](https://2lnr.com/routes/sdf-atl.md): Delta Air Lines\ [Return: Atlanta to Louisville](https://2lnr.com/routes/atl-sdf.md) - [Louisville to Austin flights (SDF-AUS)](https://2lnr.com/routes/sdf-aus.md): American Airlines and Delta Air Lines\ [Return: Austin to Louisville](https://2lnr.com/routes/aus-sdf.md) - [Louisville to Boston flights (SDF-BOS)](https://2lnr.com/routes/sdf-bos.md): American Airlines and Delta Air Lines\ [Return: Boston to Louisville](https://2lnr.com/routes/bos-sdf.md) - [Louisville to Charlotte flights (SDF-CLT)](https://2lnr.com/routes/sdf-clt.md): American Airlines\ [Return: Charlotte to Louisville](https://2lnr.com/routes/clt-sdf.md) - [Louisville to Chicago flights (SDF-ORD)](https://2lnr.com/routes/sdf-ord.md): American Airlines and United Airlines\ [Return: Chicago to Louisville](https://2lnr.com/routes/ord-sdf.md) - [Louisville to Dallas flights (SDF-DFW)](https://2lnr.com/routes/sdf-dfw.md): American Airlines\ [Return: Dallas to Louisville](https://2lnr.com/routes/dfw-sdf.md) - [Louisville to Denver flights (SDF-DEN)](https://2lnr.com/routes/sdf-den.md): United Airlines\ [Return: Denver to Louisville](https://2lnr.com/routes/den-sdf.md) - [Louisville to Detroit flights (SDF-DTW)](https://2lnr.com/routes/sdf-dtw.md): Delta Air Lines\ [Return: Detroit to Louisville](https://2lnr.com/routes/dtw-sdf.md) - [Louisville to Eglin Village flights (SDF-VPS)](https://2lnr.com/routes/sdf-vps.md): Allegiant Air\ [Return: Eglin Village to Louisville](https://2lnr.com/routes/vps-sdf.md) - [Louisville to Fort Lauderdale flights (SDF-FLL)](https://2lnr.com/routes/sdf-fll.md): Allegiant Air\ [Return: Fort Lauderdale to Louisville](https://2lnr.com/routes/fll-sdf.md) - [Louisville to Gulf Shores flights (SDF-GUF)](https://2lnr.com/routes/sdf-guf.md): Allegiant Air\ [Return: Gulf Shores to Louisville](https://2lnr.com/routes/guf-sdf.md) - [Louisville to Houston flights (SDF-IAH)](https://2lnr.com/routes/sdf-iah.md): American Airlines and United Airlines\ [Return: Houston to Louisville](https://2lnr.com/routes/iah-sdf.md) - [Louisville to Jacksonville flights (SDF-JAX)](https://2lnr.com/routes/sdf-jax.md): American Airlines\ [Return: Jacksonville to Louisville](https://2lnr.com/routes/jax-sdf.md) - [Louisville to Las Vegas flights (SDF-LAS)](https://2lnr.com/routes/sdf-las.md): American Airlines\ [Return: Las Vegas to Louisville](https://2lnr.com/routes/las-sdf.md) - [Louisville to Los Angeles flights (SDF-LAX)](https://2lnr.com/routes/sdf-lax.md): American Airlines and Delta Air Lines\ [Return: Los Angeles to Louisville](https://2lnr.com/routes/lax-sdf.md) - [Louisville to Miami flights (SDF-MIA)](https://2lnr.com/routes/sdf-mia.md): American Airlines\ [Return: Miami to Louisville](https://2lnr.com/routes/mia-sdf.md) - [Louisville to Minneapolis flights (SDF-MSP)](https://2lnr.com/routes/sdf-msp.md): Delta Air Lines\ [Return: Minneapolis to Louisville](https://2lnr.com/routes/msp-sdf.md) - [Louisville to New Orleans flights (SDF-MSY)](https://2lnr.com/routes/sdf-msy.md): American Airlines\ [Return: New Orleans to Louisville](https://2lnr.com/routes/msy-sdf.md) - [Louisville to New York flights (SDF-JFK)](https://2lnr.com/routes/sdf-jfk.md): American Airlines and Delta Air Lines\ [Return: New York to Louisville](https://2lnr.com/routes/jfk-sdf.md) - [Louisville to New York flights (SDF-LGA)](https://2lnr.com/routes/sdf-lga.md): American Airlines and Delta Air Lines\ [Return: New York to Louisville](https://2lnr.com/routes/lga-sdf.md) - [Louisville to Newark flights (SDF-EWR)](https://2lnr.com/routes/sdf-ewr.md): United Airlines\ [Return: Newark to Louisville](https://2lnr.com/routes/ewr-sdf.md) - [Louisville to Orlando flights (SDF-MCO)](https://2lnr.com/routes/sdf-mco.md): Delta Air Lines\ [Return: Orlando to Louisville](https://2lnr.com/routes/mco-sdf.md) - [Louisville to Orlando flights (SDF-SFB)](https://2lnr.com/routes/sdf-sfb.md): Allegiant Air\ [Return: Orlando to Louisville](https://2lnr.com/routes/sfb-sdf.md) - [Louisville to Philadelphia flights (SDF-PHL)](https://2lnr.com/routes/sdf-phl.md): American Airlines\ [Return: Philadelphia to Louisville](https://2lnr.com/routes/phl-sdf.md) - [Louisville to Phoenix flights (SDF-PHX)](https://2lnr.com/routes/sdf-phx.md): American Airlines\ [Return: Phoenix to Louisville](https://2lnr.com/routes/phx-sdf.md) - [Louisville to Punta Gorda flights (SDF-PGD)](https://2lnr.com/routes/sdf-pgd.md): Allegiant Air\ [Return: Punta Gorda to Louisville](https://2lnr.com/routes/pgd-sdf.md) - [Louisville to Raleigh/Durham flights (SDF-RDU)](https://2lnr.com/routes/sdf-rdu.md): American Airlines and Delta Air Lines\ [Return: Raleigh/Durham to Louisville](https://2lnr.com/routes/rdu-sdf.md) - [Louisville to Salt Lake City flights (SDF-SLC)](https://2lnr.com/routes/sdf-slc.md): Delta Air Lines\ [Return: Salt Lake City to Louisville](https://2lnr.com/routes/slc-sdf.md) - [Louisville to Santa Ana flights (SDF-SNA)](https://2lnr.com/routes/sdf-sna.md): American Airlines\ [Return: Santa Ana to Louisville](https://2lnr.com/routes/sna-sdf.md) - [Louisville to Sarasota flights (SDF-SRQ)](https://2lnr.com/routes/sdf-srq.md): Allegiant Air\ [Return: Sarasota to Louisville](https://2lnr.com/routes/srq-sdf.md) - [Louisville to Savannah flights (SDF-SAV)](https://2lnr.com/routes/sdf-sav.md): Allegiant Air\ [Return: Savannah to Louisville](https://2lnr.com/routes/sav-sdf.md) - [Louisville to South Highpoint flights (SDF-PIE)](https://2lnr.com/routes/sdf-pie.md): Allegiant Air\ [Return: South Highpoint to Louisville](https://2lnr.com/routes/pie-sdf.md) - [Louisville to Toronto flights (SDF-YYZ)](https://2lnr.com/routes/sdf-yyz.md): Air Canada\ [Return: Toronto to Louisville](https://2lnr.com/routes/yyz-sdf.md) - [Louisville to Washington flights (SDF-DCA)](https://2lnr.com/routes/sdf-dca.md): American Airlines\ [Return: Washington to Louisville](https://2lnr.com/routes/dca-sdf.md) - [Louisville to Washington flights (SDF-IAD)](https://2lnr.com/routes/sdf-iad.md): United Airlines\ [Return: Washington to Louisville](https://2lnr.com/routes/iad-sdf.md) - [Louisville to West Palm Beach flights (SDF-DJT)](https://2lnr.com/routes/sdf-djt.md): American Airlines and Delta Air Lines\ [Return: West Palm Beach to Louisville](https://2lnr.com/routes/djt-sdf.md) Explore SDF routes on the interactive map → ## Nonstop flights to Louisville (SDF) 36 airports have nonstops to Louisville International Airport in 2LNR's schedule data. Here they are, with the airlines that fly each route. - [Atlanta to Louisville flights (ATL-SDF)](https://2lnr.com/routes/atl-sdf.md): Delta Air Lines - [Austin to Louisville flights (AUS-SDF)](https://2lnr.com/routes/aus-sdf.md): American Airlines and Delta Air Lines - [Boston to Louisville flights (BOS-SDF)](https://2lnr.com/routes/bos-sdf.md): American Airlines and Delta Air Lines - [Charlotte to Louisville flights (CLT-SDF)](https://2lnr.com/routes/clt-sdf.md): American Airlines - [Chicago to Louisville flights (ORD-SDF)](https://2lnr.com/routes/ord-sdf.md): American Airlines and United Airlines - [Dallas to Louisville flights (DFW-SDF)](https://2lnr.com/routes/dfw-sdf.md): American Airlines - [Denver to Louisville flights (DEN-SDF)](https://2lnr.com/routes/den-sdf.md): United Airlines - [Detroit to Louisville flights (DTW-SDF)](https://2lnr.com/routes/dtw-sdf.md): Delta Air Lines - [Eglin Village to Louisville flights (VPS-SDF)](https://2lnr.com/routes/vps-sdf.md): Allegiant Air - [Fort Lauderdale to Louisville flights (FLL-SDF)](https://2lnr.com/routes/fll-sdf.md): Allegiant Air - [Gulf Shores to Louisville flights (GUF-SDF)](https://2lnr.com/routes/guf-sdf.md): Allegiant Air - [Houston to Louisville flights (IAH-SDF)](https://2lnr.com/routes/iah-sdf.md): American Airlines and United Airlines - [Jacksonville to Louisville flights (JAX-SDF)](https://2lnr.com/routes/jax-sdf.md): American Airlines - [Las Vegas to Louisville flights (LAS-SDF)](https://2lnr.com/routes/las-sdf.md): American Airlines - [Los Angeles to Louisville flights (LAX-SDF)](https://2lnr.com/routes/lax-sdf.md): American Airlines and Delta Air Lines - [Miami to Louisville flights (MIA-SDF)](https://2lnr.com/routes/mia-sdf.md): American Airlines - [Minneapolis to Louisville flights (MSP-SDF)](https://2lnr.com/routes/msp-sdf.md): Delta Air Lines - [New Orleans to Louisville flights (MSY-SDF)](https://2lnr.com/routes/msy-sdf.md): American Airlines - [New York to Louisville flights (JFK-SDF)](https://2lnr.com/routes/jfk-sdf.md): American Airlines and Delta Air Lines - [New York to Louisville flights (LGA-SDF)](https://2lnr.com/routes/lga-sdf.md): American Airlines and Delta Air Lines - [Newark to Louisville flights (EWR-SDF)](https://2lnr.com/routes/ewr-sdf.md): United Airlines - [Orlando to Louisville flights (MCO-SDF)](https://2lnr.com/routes/mco-sdf.md): Delta Air Lines - [Orlando to Louisville flights (SFB-SDF)](https://2lnr.com/routes/sfb-sdf.md): Allegiant Air - [Philadelphia to Louisville flights (PHL-SDF)](https://2lnr.com/routes/phl-sdf.md): American Airlines - [Phoenix to Louisville flights (PHX-SDF)](https://2lnr.com/routes/phx-sdf.md): American Airlines - [Punta Gorda to Louisville flights (PGD-SDF)](https://2lnr.com/routes/pgd-sdf.md): Allegiant Air - [Raleigh/Durham to Louisville flights (RDU-SDF)](https://2lnr.com/routes/rdu-sdf.md): American Airlines and Delta Air Lines - [Salt Lake City to Louisville flights (SLC-SDF)](https://2lnr.com/routes/slc-sdf.md): Delta Air Lines - [Santa Ana to Louisville flights (SNA-SDF)](https://2lnr.com/routes/sna-sdf.md): American Airlines - [Sarasota to Louisville flights (SRQ-SDF)](https://2lnr.com/routes/srq-sdf.md): Allegiant Air - [Savannah to Louisville flights (SAV-SDF)](https://2lnr.com/routes/sav-sdf.md): Allegiant Air - [South Highpoint to Louisville flights (PIE-SDF)](https://2lnr.com/routes/pie-sdf.md): Allegiant Air - [Toronto to Louisville flights (YYZ-SDF)](https://2lnr.com/routes/yyz-sdf.md): Air Canada - [Washington to Louisville flights (DCA-SDF)](https://2lnr.com/routes/dca-sdf.md): American Airlines - [Washington to Louisville flights (IAD-SDF)](https://2lnr.com/routes/iad-sdf.md): United Airlines - [West Palm Beach to Louisville flights (DJT-SDF)](https://2lnr.com/routes/djt-sdf.md): American Airlines and Delta Air Lines ## Airlines that fly out of Louisville (SDF) The carriers with nonstop service from Louisville International Airport, ordered by how many destinations each one reaches. Each links to that airline's full route map. - [American Airlines (AA)](https://2lnr.com/routes/airlines/aa.md) - [Delta Air Lines (DL)](https://2lnr.com/routes/airlines/dl.md) - [Allegiant Air (G4)](https://2lnr.com/routes/airlines/g4.md) - [United Airlines (UA)](https://2lnr.com/routes/airlines/ua.md) - [Air Canada (AC)](https://2lnr.com/routes/airlines/ac.md) ## Alternative airports near Louisville (SDF) 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. - [Lexington (LEX)](https://2lnr.com/routes/lex.md) (62 miles, 23 nonstop destinations) - [Owensboro (OWB)](https://2lnr.com/routes/owb.md) (83 miles, 2 nonstop destinations) - [Cincinnati (CVG)](https://2lnr.com/routes/cvg.md) (84 miles, 50 nonstop destinations) - [Evansville (EVV)](https://2lnr.com/routes/evv.md) (98 miles, 7 nonstop destinations) - [Indianapolis (IND)](https://2lnr.com/routes/ind.md) (111 miles, 39 nonstop destinations) - [Dayton (DAY)](https://2lnr.com/routes/day.md) (145 miles, 11 nonstop destinations) [United States flights by airport](https://2lnr.com/routes/to/united-states.md) - [How American upgrades clear](https://2lnr.com/about/aa/upgrades.md) - [How to read award availability by date](https://2lnr.com/guides/award-availability.md) ## Frequently asked questions about Louisville (SDF) **How many nonstop destinations does Louisville International Airport (SDF) serve?** Louisville International Airport has active nonstop service to 36 destinations in 2LNR's schedule data. The busiest markets from SDF are Dallas, Chicago, and Atlanta. 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 Louisville (SDF)?** The carriers with nonstop service from Louisville International Airport are listed in full on this page, each linked to its own route map. American Airlines, Delta Air Lines, and Allegiant Air run the most routes from Louisville, in that order. In 2LNR's schedule data that is 5 airlines in total. **How many airlines fly out of SDF?** 2LNR's schedule data currently shows 5 airlines with at least one nonstop route from Louisville (SDF). 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 SDF?** Pick any destination on this page, such as Dallas, to open a calendar of SDF departures with confirmed upgrade and award space on American 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 SDF?** Yes. Every nonstop route from Louisville International Airport in 2LNR's schedule data is listed, 36 destinations in total, and on the routes flown by American 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 Louisville (SDF)?** 2LNR's schedule data shows nonstops from Louisville (SDF) to 36 destinations. The busiest go to Dallas, Chicago, Atlanta, Washington, Denver, Charlotte, Newark, Houston, Detroit, and New York. This page lists all 36, with the airlines that fly each one. ## Never miss SDF 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)