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Where does Southwest Airlines fly?

WN · 1,648 nonstop routes
Southwest Airlines flies 1,648 nonstop routes touching 122 airports in 14 countries, with its busiest bases at Denver (DEN), Chicago (MDW), Baltimore (BWI).
BWIDALDENBNAMDW Southwest Airlines · 1,648 nonstop routes across 122 airports onlynonstop.com

Every Southwest Airlines nonstop route in our tracked network — hubs in orange. Download this map — free to reuse with a link back to this page.

Scope: our route data covers 500 tracked origin airports, so this shows routes touching those airports. For large carriers that is close to the whole network; for regional carriers it may be partial.

Nonstop routes
1,648
Airports served
122
Countries
14
Biggest hub
DEN

Southwest Airlines hubs and focus cities

AirportSouthwest Airlines routesTotal airport routes
Denver · Denver International Airport (DEN)90220
Chicago · Chicago Midway International Airport (MDW)7992
Baltimore · Baltimore/Washington International Thurgood Marshall Airport (BWI)7989
Nashville · Nashville International Airport (BNA)75111
Dallas · Dallas Love Field (DAL)7575
Las Vegas · McCarran International Airport (LAS)72155
Houston · William P Hobby Airport (HOU)6571
Orlando · Orlando International Airport (MCO)64157

What is Southwest Airlines's longest flight?

The longest Southwest Airlines nonstop in our data is Phoenix (PHX) to Honolulu (HNL) at 2,913 miles — roughly 6h 11m in the air (estimated from distance). The shortest is Denver (DEN) to Colorado Springs (COS) at 73 miles.

The Southwest Airlines fleet — size, age and how it flies

729 aircraft are US-registered with Southwest Airlines as the registrant, averaging 11.5 years old.

AircraftJetsAvg age
737 MAX 82953.1y
Boeing 737-70028820.3y
Boeing 737-80014310.5y
Boeing 737-300336.3y

Source: FAA aircraft registry (public domain, updated daily). Counts aircraft registered directly to the airline — leased airframes registered to trustee banks are not attributable, so treat these as floors, not exact fleet sizes.

In 2025, Southwest Airlines reported 169,842,381 passengers on 1,415,816 flights to the US DOT — an average of 120 passengers per flight at 74% seat fill. We estimate those flights emitted ~14,305 thousand tonnes of CO₂ — about 107 g per passenger-mile.

AircraftFlightsAvg passengersSeat fillMiles flownCO₂ (est.)g CO₂/pax-mi
Boeing 737-700/700LR/Max 7611,73710775%416M4,867k t109
Boeing B737 Max 800456,27512974%399M5,043k t98
Boeing 737-800347,80412974%290M4,394k t117

Source: US DOT T-100 segment reports, 2025, scheduled service. Mainline operations only — regional partners report separately. CO₂ is an estimate: miles flown × a representative fuel-burn factor per aircraft family × 3.16 kg CO₂ per kg of jet fuel (±15%; factors cover 100% of reported miles — types without a published factor are excluded — see the jet tracker methodology).

Is Southwest Airlines on time today?

Checking today's departures at Southwest Airlines's busiest airports…

Every Southwest Airlines destination

North America (122)

Albany (ALB) · Albuquerque (ABQ) · Amarillo (AMA) · Anchorage (ANC) · Atlanta (ATL) · Austin (AUS) · Baltimore (BWI) · Belize City (BZE) · Birmingham (BHM) · Boise (BOI) · Boston (BOS) · Bozeman (BZN) · Buffalo (BUF) · Burbank (BUR) · Cancun (CUN) · Charleston (CHS) · Charlotte (CLT) · Chicago (MDW) · Cincinnati (CVG) · Cleveland (CLE) · Colorado Springs (COS) · Columbus (CMH) · Corpus Christi (CRP) · Dallas (DAL) · Denver (DEN) · Des Moines (DSM) · Detroit (DTW) · El Paso (ELP) · Eugene (EUG) · Everett (PAE) · Fort Lauderdale (FLL) · Fort Myers (RSW) · Fresno (FAT) · Georgetown (GCM) · Grand Rapids (GRR) · Greenville (GSP) · Harlingen (HRL) · Havana (HAV) · Hayden (HDN) · Hayward (HWD) · Hilo (ITO) · Honolulu (HNL) · Houston (HOU) · Indianapolis (IND) · Islip (ISP) · Jackson (JAN) · Jacksonville (JAX) · Kahului (OGG) · Kansas City (MCI) · Knoxville (TYS) · Kona (KOA) · Las Vegas (LAS) · Liberia (LIR) · Lihue (LIH) · Little Rock (LIT) · Long Beach (LGB) · Los Angeles (LAX) · Louisville (SDF) · Lubbock (LBB) · Manchester NH (MHT) · Memphis (MEM) · Miami (MIA) · Midland (MAF) · Milwaukee (MKE) · Minneapolis (MSP) · Montego Bay (MBJ) · Montrose CO (MTJ) · Myrtle Beach (MYR) · Nashville (BNA) · Nassau (NAS) · New Orleans (MSY) · New York (LGA) · Norfolk (ORF) · Oakland (OAK) · Oklahoma City (OKC) · Omaha (OMA) · Ontario (ONT) · Oranjestad (AUA) · Orlando (MCO) · Palm Springs (PSP) · Panama City (ECP) · Pensacola (PNS) · Philadelphia (PHL) · Philipsburg (SXM) · Phoenix (PHX) · Pittsburgh (PIT) · Portland (PDX) · Portland (PWM) · Providence (PVD) · Providenciales (PLS) · Puerto Vallarta (PVR) · Punta Cana (PUJ) · Raleigh-durham (RDU) · Reno (RNO) · Richmond (RIC) · Rochester (ROC) · Sacramento (SMF) · Salt Lake City (SLC) · San Antonio (SAT) · San Diego (SAN) · San Francisco (SFO) · San Jose (SJC) · San Jose (SJO) · San Jose Del Cabo (SJD) · San Juan (SJU) · Santa Ana (SNA) · Santa Barbara (SBA) · Santa Rosa (STS) · Sarasota (SRQ) · Savannah (SAV) · Seattle (SEA) · Spokane (GEG) · St. Louis (STL) · St. Thomas (STT) · Tampa (TPA) · Tucson (TUS) · Tulsa (TUL) · Valparaiso (VPS) · Washington (DCA) · West Palm Beach (PBI) · Wichita (ICT) · Windsor Locks (BDL)

Common questions

Where does Southwest Airlines fly?

Southwest Airlines flies 1,648 nonstop routes touching 122 airports in 14 countries within our tracked network of 500 origin airports. Its busiest bases are Denver (DEN), Chicago (MDW), Baltimore (BWI).

What is Southwest Airlines's longest flight?

Phoenix (PHX) to Honolulu (HNL) — about 2,913 miles, roughly 6h 11m in the air (estimated from distance).

What are Southwest Airlines's biggest hubs?

By nonstop routes in our data: Denver (DEN) with 90, Chicago (MDW) with 79, Baltimore (BWI) with 79, Nashville (BNA) with 75, Dallas (DAL) with 75.

What aircraft does Southwest Airlines fly?

Aircraft types we have observed on Southwest Airlines routes include the Boeing 737, Boeing 737-800, Boeing 737-700, Airbus A320, Embraer 175. This reflects our schedule sample, not the full fleet.