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Southwest Airlines

Southwest Airlines is a US-based airline that mostly operates domestic flights. It has over a 100 destinations in the US and has operating bases in some major cities like Atlanta, Dallas, Denver and Los Angeles. Southwest Airlines is a low cost operator, and not part of any of the worldwide airline alliances.

CALLSIGN: SOUTHWEST. IATA Code: WN. ICAO Code: SWA

Website: http://www.southwest.com/

Southwest market distribution on each continent.

Southwest Airlines 30 days of scheduled flights

The graph shows thenumber of scheduled flights per day. The bars are divided between domestic and international flights.

Southwest airports

Number of routes on some of the biggest Southwest Airlines airports.
Routes re-launching soonRE-LAUNCH

Flights with Southwest Airlines that are seasonal or re-launching again.

Start From     To  
Aug 4 SAN San Diego Santa Barbara SBA »
Aug 4 PDX Portland Long Beach LGB »
Aug 4 LGB Long Beach Seattle SEA »
Aug 4 DEN Denver Hartford BDL »
Aug 6 LAS Las Vegas Hilo ITO »
Aug 6 DEN Denver Providence PVD »
Aug 8 HNL Honolulu Burbank BUR »
Sep 4 GSP Greenville New Orleans MSY »
Sep 10 OKC Oklahoma City Detroit DTW »
Sep 11 CLE Cleveland Austin AUS »
Sep 13 MCO Orlando Detroit DTW »
Sep 14 HOU Houston Buffalo BUF »
Sep 17 LAX Los Angeles Columbus CMH »
Sep 24 TYS Knoxville Austin AUS »
Sep 26 BOS Boston Jacksonville JAX »
Sep 27 ATL Atlanta Oklahoma City OKC »
Oct 1 DAL Dallas Tucson TUS »
Oct 1 FLL Fort Lauderdale San Juan SJU »
Oct 1 LAS Las Vegas Albany ALB »
Oct 1 DAL Dallas Cleveland CLE »
Updated 2026-07-12.
New Southwest Airlines routesNEW

Recently added routes to our site. This usually means the flight route is new.

From     To Start  
LAX Los Angeles Columbus CMH Sep 17  »
BOS Boston Jacksonville JAX Sep 26  »
FLL Fort Lauderdale San Diego SAN Nov 21  »
SFO San Francisco Kansas City MCI Nov 21  »
DEN Denver West Palm Beach PBI Nov 21  »
BNA Nashville Guanacaste LIR Feb 13  »
BUF Buffalo Miami MIA Feb 13  »
CMH Columbus San Juan SJU Feb 13  »
IND Indianapolis West Palm Beach PBI Feb 13  »
MHT Manchester Fort Myers RSW Feb 13  »
PWM Portland Fort Myers RSW Feb 13  »
The list of new routes is usually updated every third month.
Most popular flight routesPOPULAR

Southwest Airlines operates over 1320 flight routes. Here are the most popular.

From     To  
DAL Dallas Houston HOU  »
SAN San Diego San Jose SJC  »
SAN San Diego Sacramento SMF  »
LAS Las Vegas San Diego SAN  »
LAS Las Vegas Reno RNO  »
LAS Las Vegas Burbank BUR  »
PHX Phoenix Denver DEN  »
LAS Las Vegas Sacramento SMF  »
MCO Orlando Baltimore BWI  »
PHX Phoenix San Diego SAN  »
OGG Kahului Honolulu HNL  »
LAS Las Vegas San Jose SJC  »
OAK Oakland Las Vegas LAS  »
OAK Oakland San Diego SAN  »
LAS Las Vegas Phoenix PHX  »
MCO Orlando Nashville BNA  »
DAL Dallas San Antonio SAT  »
DEN Denver Las Vegas LAS  »
SJC San Jose Santa Ana SNA  »
BUR Burbank Sacramento SMF  »
Based on the number of flight departures in August 2026.
Southwest Airlines Aircrafts

Aircraft models scheduled to fly with Southwest Airlines.

Aircraft model Flights
Boeing 737MAX 8 Passenger 42334
Boeing 737-700 Passenger (Scimitar Winglets) 38300
Boeing 737-800 (winglets) Passenger/BBJ2 22896

Southwest Airlines airports

Sorted by the number of departing flights next month.

Operating base US Southwest at DEN route map
#1 Denver (DEN)
6,618 flights
Operating base US Southwest at LAS route map
#2 Las Vegas (LAS)
6,221 flights
Operating base US Southwest at MDW route map
#3 Chicago (MDW)
5,729 flights
Operating base US Southwest at BWI route map
#4 Baltimore (BWI)
5,309 flights
US Southwest at BNA route map
#5 Nashville (BNA)
4,915 flights
Operating base US Southwest at DAL route map
#6 Dallas (DAL)
4,896 flights
Operating base US Southwest at PHX route map
#7 Phoenix (PHX)
4,456 flights
Operating base US Southwest at HOU route map
#8 Houston (HOU)
3,685 flights
Operating base US Southwest at MCO route map
#9 Orlando (MCO)
3,512 flights
US Southwest at SAN route map
#10 San Diego (SAN)
3,332 flights
US Southwest at STL route map
#11 Saint Louis (STL)
2,821 flights
US Southwest at AUS route map
#12 Austin (AUS)
2,791 flights

An airline hub is an airport where the airline has a heavy presence and normally some kind of headquarters. On the other hand, a focus city is a destination where the airline operates limited point-to-point routes. In these cities, the airline doesn’t necessarily need to have an office (even though this sometimes is the case). Many low-cost airlines don't use the definition 'hub' but instead define their main airports of operations as an operating base.