Southwest Airlines Flight Status
About Southwest Airlines
Southwest Airlines, based in United States, operates under the ICAO code SWA and the IATA code WN; its radio callsign is "Southwest". On this page you can follow Southwest Airlines flights and find the airports it serves.
How to read a Southwest Airlines flight number
Every Southwest Airlines flight number starts with WN, followed by up to four digits: that is the number on your booking confirmation and boarding pass. In flight plans the same flight carries the ICAO prefix SWA, and controllers address it as "Southwest". One thing to watch: codeshares. A ticket sold by another airline can be operated by Southwest Airlines and vice versa; live tracking follows the operating carrier's number, so if your search comes up empty, check the "operated by" line on your booking.
Southwest Airlines flights we tracked
Over the first 78 days of our own live tracking we logged 18046 aircraft movements operated by Southwest Airlines. These figures are refreshed weekly. Tracking data: adsb.lol · Route data: adsbdb.com.
Routes we tracked on Southwest Airlines
| # | Route | Tracked flights |
|---|---|---|
| 1 | San Diego (SAN) → Oakland (OAK) | 250 |
| 2 | San Diego (SAN) → San Jose (SJC) | 244 |
| 3 | San Jose (SJC) → San Diego (SAN) | 228 |
| 4 | Burbank (BUR) → Oakland (OAK) | 219 |
| 5 | Las Vegas (LAS) → Oakland (OAK) | 213 |
| 6 | Burbank (BUR) → San Jose (SJC) | 186 |
| 7 | Santa Ana (SNA) → Oakland (OAK) | 185 |
| 8 | San Jose (SJC) → Las Vegas (LAS) | 184 |
| 9 | Oakland (OAK) → Burbank (BUR) | 149 |
| 10 | Oakland (OAK) → Las Vegas (LAS) | 147 |
| 11 | San Jose (SJC) → Burbank (BUR) | 146 |
| 12 | Los Angeles (LAX) → Oakland (OAK) | 143 |
| 13 | Baltimore (BWI) → Boston (BOS) | 134 |
| 14 | San Jose (SJC) → Santa Ana (SNA) | 129 |
| 15 | San Jose (SJC) → Los Angeles (LAX) | 117 |
| 16 | Las Vegas (LAS) → San Jose (SJC) | 111 |
| 17 | San Jose (SJC) → Portland (PDX) | 111 |
| 18 | Long Beach (LGB) → Oakland (OAK) | 109 |
| 19 | Seattle (SEA) → Oakland (OAK) | 106 |
| 20 | Santa Ana (SNA) → San Jose (SJC) | 105 |
| 21 | Baltimore (BWI) → Manchester (MHT) | 97 |
| 22 | Los Angeles (LAX) → San Jose (SJC) | 95 |
| 23 | Phoenix (PHX) → Oakland (OAK) | 92 |
| 24 | Boston (BOS) → Baltimore (BWI) | 89 |
| 25 | Burbank (BUR) → San Francisco (SFO) | 88 |
| 26 | Baltimore (BWI) → Albany (ALB) | 88 |
| 27 | Ontario (ONT) → Oakland (OAK) | 85 |
| 28 | San Jose (SJC) → Denver (DEN) | 85 |
| 29 | San Jose (SJC) → Seattle (SEA) | 82 |
| 30 | Denver (DEN) → Oakland (OAK) | 76 |
| 31 | Dallas (DAL) → New York (LGA) | 75 |
| 32 | Baltimore (BWI) → Portland (PWM) | 74 |
| 33 | Chicago (MDW) → Boston (BOS) | 74 |
| 34 | Las Vegas (LAS) → San Francisco (SFO) | 74 |
| 35 | San Diego (SAN) → San Francisco (SFO) | 74 |
| 36 | Portland (PDX) → Oakland (OAK) | 71 |
| 37 | Phoenix (PHX) → San Jose (SJC) | 71 |
| 38 | Phoenix (PHX) → San Francisco (SFO) | 71 |
| 39 | Chicago (MDW) → Philadelphia (PHL) | 70 |
| 40 | Nashville (BNA) → New York (LGA) | 69 |
| 41 | Philadelphia (PHL) → Chicago (MDW) | 68 |
| 42 | Oakland (OAK) → Los Angeles (LAX) | 66 |
| 43 | Oakland (OAK) → Phoenix (PHX) | 66 |
| 44 | Baltimore (BWI) → Hartford (BDL) | 65 |
| 45 | San Jose (SJC) → Phoenix (PHX) | 65 |
| 46 | Orlando (MCO) → New Orleans (MSY) | 65 |
| 47 | Los Angeles (LAX) → San Francisco (SFO) | 65 |
| 48 | Portland (PDX) → San Jose (SJC) | 64 |
| 49 | San Francisco (SFO) → Las Vegas (LAS) | 63 |
| 50 | Denver (DEN) → San Francisco (SFO) | 62 |
| 51 | Boston (BOS) → St Louis (STL) | 62 |
| 52 | Ontario (ONT) → San Jose (SJC) | 61 |
| 53 | Seattle (SEA) → San Jose (SJC) | 60 |
| 54 | Albany (ALB) → Baltimore (BWI) | 60 |
| 55 | Palm Springs (PSP) → Oakland (OAK) | 59 |
| 56 | Boise (BOI) → Oakland (OAK) | 59 |
| 57 | Providence (PVD) → Baltimore (BWI) | 58 |
| 58 | Denver (DEN) → Austin (AUS) | 58 |
| 59 | Atlanta (ATL) → New York (LGA) | 56 |
| 60 | Chicago (MDW) → Orlando (MCO) | 56 |
| 61 | San Francisco (SFO) → Burbank (BUR) | 54 |
| 62 | San Jose (SJC) → Boise (BOI) | 54 |
| 63 | St Louis (STL) → New York (LGA) | 54 |
| 64 | Houston (HOU) → New York (LGA) | 54 |
| 65 | Portland (PWM) → Baltimore (BWI) | 53 |
| 66 | Chicago (MDW) → New Orleans (MSY) | 52 |
| 67 | Denver (DEN) → San Jose (SJC) | 51 |
| 68 | St Louis (STL) → Boston (BOS) | 51 |
| 69 | Islip (ISP) → Baltimore (BWI) | 51 |
| 70 | Oakland (OAK) → Portland (PDX) | 51 |
| 71 | Oakland (OAK) → Ontario (ONT) | 50 |
| 72 | Oakland (OAK) → Santa Ana (SNA) | 49 |
| 73 | Denver (DEN) → Boston (BOS) | 47 |
| 74 | Baltimore (BWI) → Providence (PVD) | 45 |
| 75 | Hartford (BDL) → Baltimore (BWI) | 45 |
| 76 | San Jose (SJC) → Austin (AUS) | 45 |
| 77 | Salt Lake City (SLC) → Denver (DEN) | 45 |
| 78 | Denver (DEN) → New York (LGA) | 44 |
| 79 | Manchester (MHT) → Baltimore (BWI) | 44 |
| 80 | San Francisco (SFO) → San Diego (SAN) | 44 |
| 81 | Nashville (BNA) → Boston (BOS) | 44 |
| 82 | Phoenix (PHX) → Austin (AUS) | 44 |
| 83 | Phoenix (PHX) → Denver (DEN) | 42 |
| 84 | Ontario (ONT) → Las Vegas (LAS) | 42 |
| 85 | Orlando (MCO) → Chicago (MDW) | 41 |
| 86 | New York (LGA) → Chicago (MDW) | 41 |
| 87 | Nashville (BNA) → Dallas (DAL) | 41 |
| 88 | San Francisco (SFO) → Phoenix (PHX) | 40 |
| 89 | Boston (BOS) → Chicago (MDW) | 40 |
| 90 | Baltimore (BWI) → Buffalo (BUF) | 40 |
| 91 | Oakland (OAK) → Palm Springs (PSP) | 40 |
| 92 | Nashville (BNA) → Chicago (MDW) | 39 |
| 93 | Las Vegas (LAS) → Austin (AUS) | 39 |
| 94 | Dallas (DAL) → Chicago (MDW) | 39 |
| 95 | Baltimore (BWI) → Tampa (TPA) | 38 |
| 96 | Boston (BOS) → Denver (DEN) | 38 |
| 97 | Las Vegas (LAS) → Burbank (BUR) | 38 |
| 98 | San Jose (SJC) → Long Beach (LGB) | 37 |
| 99 | New York (LGA) → Atlanta (ATL) | 37 |
| 100 | Oakland (OAK) → Seattle (SEA) | 37 |
| 101 | Nashville (BNA) → Philadelphia (PHL) | 37 |
| 102 | Phoenix (PHX) → Dallas (DAL) | 37 |
| 103 | San Jose (SJC) → Ontario (ONT) | 36 |
| 104 | San Diego (SAN) → Las Vegas (LAS) | 36 |
| 105 | Atlanta (ATL) → Denver (DEN) | 36 |
| 106 | Chicago (MDW) → Minneapolis (MSP) | 36 |
| 107 | San Diego (SAN) → Austin (AUS) | 36 |
| 108 | Columbus (CMH) → Chicago (MDW) | 36 |
| 109 | Denver (DEN) → Chicago (ORD) | 35 |
| 110 | Washington (DCA) → Providence (PVD) | 35 |
| 111 | Cincinnati / Covington (CVG) → Chicago (MDW) | 35 |
| 112 | Oakland (OAK) → San Diego (SAN) | 35 |
| 113 | Manchester (MHT) → Chicago (MDW) | 35 |
| 114 | Las Vegas (LAS) → Denver (DEN) | 35 |
| 115 | Santa Ana (SNA) → Denver (DEN) | 34 |
| 116 | Austin (AUS) → San Jose (SJC) | 34 |
| 117 | Las Vegas (LAS) → Bellingham (BLI) | 34 |
| 118 | Denver (DEN) → Las Vegas (LAS) | 34 |
| 119 | Nashville (BNA) → Tampa (TPA) | 34 |
| 120 | Reno (RNO) → Las Vegas (LAS) | 34 |
| 121 | St Louis (STL) → Chicago (MDW) | 34 |
| 122 | New York (LGA) → Houston (HOU) | 33 |
| 123 | Chicago (MDW) → St Louis (STL) | 33 |
| 124 | Orlando (MCO) → Baltimore (BWI) | 32 |
| 125 | St Louis (STL) → Philadelphia (PHL) | 32 |
| 126 | Chicago (MDW) → Albany (ALB) | 32 |
| 127 | San Francisco (SFO) → Los Angeles (LAX) | 31 |
| 128 | Baltimore (BWI) → Cincinnati / Covington (CVG) | 31 |
| 129 | Atlanta (ATL) → New Orleans (MSY) | 31 |
| 130 | Sacramento (SMF) → Las Vegas (LAS) | 31 |
| 131 | Chicago (MDW) → Omaha (OMA) | 31 |
| 132 | Oakland (OAK) → Reno (RNO) | 30 |
| 133 | Baltimore (BWI) → Syracuse (SYR) | 30 |
| 134 | Albany (ALB) → Orlando (MCO) | 30 |
| 135 | Los Angeles (LAX) → Las Vegas (LAS) | 30 |
| 136 | San Jose (SJC) → Honolulu (HNL) | 30 |
| 137 | Chicago (MDW) → Oakland (OAK) | 30 |
| 138 | New Orleans (MSY) → Dallas (DAL) | 30 |
| 139 | Baltimore (BWI) → New Orleans (MSY) | 30 |
| 140 | San Jose (SJC) → Kahului (OGG) | 29 |
| 141 | St Louis (STL) → Dallas (DAL) | 29 |
| 142 | Philadelphia (PHL) → St Louis (STL) | 29 |
| 143 | Burbank (BUR) → Phoenix (PHX) | 29 |
| 144 | Orlando (MCO) → Manchester (MHT) | 29 |
| 145 | Dallas (DAL) → Houston (HOU) | 28 |
| 146 | Islip (ISP) → Nashville (BNA) | 28 |
| 147 | Orlando (MCO) → Milwaukee (MKE) | 28 |
| 148 | Chicago (MDW) → Washington (DCA) | 28 |
| 149 | Las Vegas (LAS) → Phoenix (PHX) | 28 |
| 150 | Chicago (MDW) → Providence (PVD) | 28 |
| 151 | Denver (DEN) → Orlando (MCO) | 28 |
| 152 | Oakland (OAK) → Denver (DEN) | 27 |
| 153 | Austin (AUS) → Orlando (MCO) | 27 |
| 154 | Austin (AUS) → New Orleans (MSY) | 27 |
| 155 | Austin (AUS) → Chicago (MDW) | 27 |
| 156 | Denver (DEN) → Nashville (BNA) | 27 |
| 157 | Boston (BOS) → Nashville (BNA) | 27 |
| 158 | Chicago (MDW) → Hartford (BDL) | 27 |
| 159 | Omaha (OMA) → Chicago (MDW) | 27 |
| 160 | Austin (AUS) → Oakland (OAK) | 27 |
| 161 | Hartford (BDL) → Chicago (MDW) | 27 |
| 162 | Buffalo (BUF) → Fort Myers (RSW) | 27 |
| 163 | Chicago (MDW) → Louisville (SDF) | 26 |
| 164 | Long Beach (LGB) → San Jose (SJC) | 26 |
| 165 | Burbank (BUR) → Las Vegas (LAS) | 26 |
| 166 | Philadelphia (PHL) → Nashville (BNA) | 26 |
| 167 | San Jose (SJC) → Dallas (DAL) | 26 |
| 168 | Oakland (OAK) → Houston (HOU) | 26 |
| 169 | Sacramento (SMF) → Burbank (BUR) | 26 |
| 170 | Manchester (MHT) → Orlando (MCO) | 26 |
| 171 | Dallas (DAL) → New Orleans (MSY) | 26 |
| 172 | St Louis (STL) → Tampa (TPA) | 25 |
| 173 | Albany (ALB) → Chicago (MDW) | 25 |
| 174 | St Louis (STL) → Atlanta (ATL) | 25 |
| 175 | San Jose (SJC) → Spokane (GEG) | 25 |
| 176 | Washington (DCA) → Dallas (DAL) | 25 |
| 177 | Orlando (MCO) → Columbus (CMH) | 25 |
| 178 | Providence (PVD) → Chicago (MDW) | 25 |
| 179 | Baltimore (BWI) → Fort Lauderdale (FLL) | 25 |
| 180 | Denver (DEN) → Houston (IAH) | 25 |
| 181 | Phoenix (PHX) → Chicago (MDW) | 25 |
| 182 | Kahului (OGG) → San Jose (SJC) | 24 |
| 183 | Kansas City (MCI) → Denver (DEN) | 24 |
| 184 | New Orleans (MSY) → Denver (DEN) | 24 |
| 185 | Chicago (MDW) → Cincinnati / Covington (CVG) | 24 |
| 186 | Kahului (OGG) → Oakland (OAK) | 24 |
| 187 | Baltimore (BWI) → Denver (DEN) | 24 |
| 188 | Baltimore (BWI) → Dallas (DAL) | 24 |
| 189 | New York (LGA) → Dallas (DAL) | 24 |
| 190 | Chicago (MDW) → Baltimore (BWI) | 24 |
| 191 | Baltimore (BWI) → Jacksonville (JAX) | 24 |
| 192 | Baltimore (BWI) → Milwaukee (MKE) | 24 |
| 193 | Baltimore (BWI) → Indianapolis (IND) | 23 |
| 194 | Tampa (TPA) → Providence (PVD) | 23 |
| 195 | Baltimore (BWI) → Kansas City (MCI) | 23 |
| 196 | Indianapolis (IND) → Fort Myers (RSW) | 23 |
| 197 | Cincinnati / Covington (CVG) → Baltimore (BWI) | 23 |
| 198 | Baltimore (BWI) → Orlando (MCO) | 23 |
| 199 | Denver (DEN) → Portland (PDX) | 23 |
| 200 | Dallas (DAL) → Washington (DCA) | 23 |
| 201 | Cleveland (CLE) → Baltimore (BWI) | 23 |
| 202 | Chicago (MDW) → Cleveland (CLE) | 23 |
| 203 | Spokane (GEG) → San Jose (SJC) | 23 |
| 204 | Denver (DEN) → Des Moines (DSM) | 23 |
| 205 | Baltimore (BWI) → Las Vegas (LAS) | 23 |
| 206 | San Jose (SJC) → Salt Lake City (SLC) | 23 |
| 207 | Phoenix (PHX) → Chicago (ORD) | 23 |
| 208 | Houston (HOU) → Oakland (OAK) | 23 |
| 209 | Chicago (MDW) → Pittsburgh (PIT) | 23 |
| 210 | Washington (DCA) → Chicago (MDW) | 23 |
| 211 | San Diego (SAN) → Sacramento (SMF) | 22 |
| 212 | Portland (PDX) → Denver (DEN) | 22 |
| 213 | Tampa (TPA) → New Orleans (MSY) | 22 |
| 214 | Santa Ana (SNA) → Phoenix (PHX) | 22 |
| 215 | Houston (HOU) → Dallas (DAL) | 22 |
| 216 | New York (LGA) → Nashville (BNA) | 22 |
| 217 | Atlanta (ATL) → Philadelphia (PHL) | 22 |
| 218 | Chicago (MDW) → Denver (DEN) | 22 |
| 219 | Kansas City (MCI) → Dallas (DAL) | 22 |
| 220 | Chicago (MDW) → New York (LGA) | 22 |
| 221 | Salt Lake City (SLC) → Oakland (OAK) | 22 |
| 222 | Providence (PVD) → Orlando (MCO) | 22 |
| 223 | Chicago (MDW) → Columbus (CMH) | 22 |
| 224 | Baltimore (BWI) → Charleston (CHS) | 21 |
| 225 | Kansas City (MCI) → New York (LGA) | 21 |
| 226 | Spokane (GEG) → Oakland (OAK) | 21 |
| 227 | New York (LGA) → St Louis (STL) | 21 |
| 228 | New Orleans (MSY) → Chicago (MDW) | 21 |
| 229 | Tampa (TPA) → Chicago (ORD) | 21 |
| 230 | Chicago (MDW) → Las Vegas (LAS) | 21 |
| 231 | Las Vegas (LAS) → Sacramento (SMF) | 21 |
| 232 | Sacramento (SMF) → Nashville (BNA) | 21 |
| 233 | Albuquerque (ABQ) → Oakland (OAK) | 20 |
| 234 | Las Vegas (LAS) → San Diego (SAN) | 20 |
| 235 | Baltimore (BWI) → New York (LGA) | 20 |
| 236 | New Orleans (MSY) → Houston (HOU) | 20 |
| 237 | Reno (RNO) → Oakland (OAK) | 20 |
| 238 | Atlanta (ATL) → Chicago (MDW) | 20 |
| 239 | Oakland (OAK) → Salt Lake City (SLC) | 20 |
| 240 | Tampa (TPA) → Columbus (CMH) | 20 |
| 241 | Las Vegas (LAS) → Baltimore (BWI) | 20 |
| 242 | Chicago (MDW) → Kansas City (MCI) | 19 |
| 243 | Fort Lauderdale (FLL) → Chicago (MDW) | 19 |
| 244 | Phoenix (PHX) → Santa Ana (SNA) | 19 |
| 245 | El Paso (ELP) → Austin (AUS) | 19 |
| 246 | Nashville (BNA) → Detroit (DTW) | 19 |
| 247 | San Diego (SAN) → Phoenix (PHX) | 19 |
| 248 | Fort Myers (RSW) → St Louis (STL) | 19 |
| 249 | Milwaukee (MKE) → Orlando (MCO) | 19 |
| 250 | Las Vegas (LAS) → Kansas City (MCI) | 19 |
| 251 | Denver (DEN) → Washington (IAD) | 19 |
| 252 | Dallas (DAL) → Denver (DEN) | 18 |
| 253 | St Louis (STL) → Phoenix (PHX) | 18 |
| 254 | New Orleans (MSY) → Orlando (MCO) | 18 |
| 255 | Oakland (OAK) → Bellingham (BLI) | 18 |
| 256 | Denver (DEN) → Phoenix (PHX) | 18 |
| 257 | Minneapolis (MSP) → Chicago (MDW) | 18 |
| 258 | Washington (DCA) → New Orleans (MSY) | 18 |
| 259 | Baltimore (BWI) → Atlanta (ATL) | 18 |
| 260 | Atlanta (ATL) → Baltimore (BWI) | 18 |
| 261 | Denver (DEN) → Sacramento (SMF) | 18 |
| 262 | San Diego (SAN) → Baltimore (BWI) | 18 |
| 263 | St Louis (STL) → Denver (DEN) | 18 |
| 264 | Phoenix (PHX) → Oklahoma City (OKC) | 18 |
| 265 | Tampa (TPA) → Indianapolis (IND) | 18 |
| 266 | Baltimore (BWI) → Austin (AUS) | 18 |
| 267 | Chicago (MDW) → Atlanta (ATL) | 18 |
| 268 | Orlando (MCO) → Providence (PVD) | 17 |
| 269 | Chicago (MDW) → Tampa (TPA) | 17 |
| 270 | Oakland (OAK) → Long Beach (LGB) | 17 |
| 271 | St Louis (STL) → Jacksonville (JAX) | 17 |
| 272 | Memphis (MEM) → Dallas (DAL) | 17 |
| 273 | Orlando (MCO) → Albany (ALB) | 17 |
| 274 | Oklahoma City (OKC) → Washington (DCA) | 17 |
| 275 | Phoenix (PHX) → Baltimore (BWI) | 17 |
| 276 | Philadelphia (PHL) → Denver (DEN) | 17 |
| 277 | Orlando (MCO) → Chicago (ORD) | 17 |
| 278 | Houston (HOU) → Denver (DEN) | 17 |
| 279 | Chicago (MDW) → Dallas (DAL) | 17 |
| 280 | Dallas (DAL) → Las Vegas (LAS) | 17 |
| 281 | St Louis (STL) → Kansas City (MCI) | 17 |
| 282 | Nashville (BNA) → Milwaukee (MKE) | 17 |
| 283 | Indianapolis (IND) → Baltimore (BWI) | 16 |
| 284 | Kansas City (MCI) → Oakland (OAK) | 16 |
| 285 | Denver (DEN) → San Diego (SAN) | 16 |
| 286 | Austin (AUS) → Ontario (ONT) | 16 |
| 287 | Tampa (TPA) → Austin (AUS) | 16 |
| 288 | Indianapolis (IND) → Orlando (MCO) | 16 |
| 289 | Sacramento (SMF) → Ontario (ONT) | 16 |
| 290 | Las Vegas (LAS) → Boise (BOI) | 16 |
| 291 | Austin (AUS) → San Diego (SAN) | 16 |
| 292 | Jacksonville (JAX) → Baltimore (BWI) | 16 |
| 293 | Orlando (MCO) → Indianapolis (IND) | 16 |
| 294 | Dallas (DAL) → San Jose (SJC) | 16 |
| 295 | Orlando (MCO) → Atlanta (ATL) | 16 |
| 296 | Chicago (MDW) → Fort Lauderdale (FLL) | 16 |
| 297 | Fort Myers (RSW) → Chicago (MDW) | 16 |
| 298 | New Orleans (MSY) → Tampa (TPA) | 16 |
| 299 | Denver (DEN) → Philadelphia (PHL) | 16 |
| 300 | Las Vegas (LAS) → Los Angeles (LAX) | 16 |
Top 10 Southwest Airlines flights we tracked
| # | Flight | Route | Times seen |
|---|---|---|---|
| 1 | SWA4303 | Sacramento (SMF) → Nashville (BNA) | 21 |
| 2 | SWA1771 | Seattle (SEA) → San Jose (SJC) | 20 |
| 3 | SWA2222 | Las Vegas (LAS) → Oakland (OAK) | 20 |
| 4 | SWA300 | Hartford (BDL) → Chicago (MDW) | 19 |
| 5 | SWA107 | San Jose (SJC) → San Diego (SAN) | 18 |
| 6 | SWA1604 | Palm Springs (PSP) → Oakland (OAK) | 18 |
| 7 | SWA1683 | Ontario (ONT) → Las Vegas (LAS) | 18 |
| 8 | SWA3556 | Denver (DEN) → Houston (IAH) | 18 |
| 9 | SWA375 | Denver (DEN) → Oakland (OAK) | 18 |
| 10 | SWA1555 | Seattle (SEA) → Oakland (OAK) | 17 |
Frequently asked questions about Southwest Airlines
Where is my Southwest Airlines flight right now?
Search the flight number (WN plus digits) in the search box on this page. If the aircraft is airborne within receiver coverage, you will see its live status; before departure you will see the route.
Is my Southwest Airlines flight delayed or cancelled?
Check the flight number on this page for live status, but for rebooking, gate changes and cancellations the airline itself remains the authoritative source.
What do WN and SWA mean on Southwest Airlines flights?
They are two prefixes for the same airline. WN is the IATA code you see on tickets; SWA is the ICAO code used in flight plans and by air traffic control.
Does Southwest Airlines operate flights for other airlines?
Codeshare agreements mean a flight sold under another carrier's number may be operated by Southwest Airlines, and the reverse. Live tracking always follows the operating carrier's flight number; check the "operated by" line on your booking.