🇺🇸 USA
IATA WN · ICAO SWA
Southwest Airlines
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Cheapest nonstop fare we've seen: $18 San Francisco → Los Angeles, 11 Nov 2026Seen 12 Oct 2026. Fares change daily.
Photo: Quintin Soloviev, CC BY 4.0, via Wikimedia Commons.
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Free Southwest Airlines route map
Every destination we hold, on one map.
IATA code
WN
Main hubs
DEN, LAS, MDW, BWI
Destinations
121
Countries
14
Fleet
770+ aircraft
Founded
1967
Southwest Airlines fares we've seen
The cheapest one-way nonstop fares on Southwest Airlines flights in our latest price check. Prices and availability change, so the booking site shows today's fare.
Los Angeles
from $18
11 Nov 2026 · one-way · nonstop
SFO
San Francisco
LAX
Los Angeles
from
$18
seen 12 Oct 2026
San Francisco
from $18
8 Dec 2026 · one-way · nonstop
LAX
Los Angeles
SFO
San Francisco
from
$18
seen 12 Oct 2026
Baltimore
from $23
17 Nov 2026 · one-way · nonstop
ATL
Atlanta
BWI
Baltimore
from
$23
seen 22 Oct 2026
Washington
from $52
14 Nov 2026 · one-way · nonstop
ATL
Atlanta
DCA
Washington
from
$52
seen 22 Oct 2026
Honolulu
from $60
26 Jan 2027 · one-way · nonstop
KOA
Kailua-Kona
HNL
Honolulu
from
$60
seen 12 Oct 2026
Seattle
from $61
1 Dec 2026 · one-way · nonstop
OAK
Oakland
SEA
Seattle
from
$61
seen 12 Oct 2026
Fares in US dollars, from Travelpayouts flight price data, seen on the dates shown. Taxes are included where the seller includes them.
Where does Southwest Airlines fly?
Southwest Airlines flies to 121 destinations in 14 countries (source: US DOT airline filings and Wikipedia, read 14 Sept 2026).
Fares are one-way nonstop on Southwest Airlines, seen on the dates shown, and may have changed.
| Country | Cities |
|---|---|
| United States | Albuquerque, Albany, Amarillo, Anchorage and 99 more |
| Mexico | Cancún, Puerto Vallarta, San José del Cabo |
| Costa Rica | Liberia, San José |
| Aruba | Oranjestad |
| Bahamas | Nassau |
| Belize | Belize City |
| Cayman Islands | George Town |
| Cuba | Havana |
| Dominican Republic | Punta Cana |
| Jamaica | Montego Bay |
| Puerto Rico | San Juan |
| Sint Maarten | Philipsburg |
Airport guides for Southwest Airlines airports
Southwest Airlines travel essentials
Our guides, and the airline's own pages for anything you manage with them.
About Southwest Airlines
Southwest Airlines is the USA's largest domestic carrier by passengers, renowned for its bags-fly-free policy and point-to-point network. Operating an all-Boeing 737 fleet, Southwest connects 121 destinations across the US and 10 countries.
Updated 12 Oct 2026. Sources: US DOT airline filings and Wikipedia, Travelpayouts flight price data.
Southwest Airlines FAQs
Where does Southwest Airlines fly?
Southwest Airlines flies to 121 destinations in 14 countries, according to US DOT airline filings and Wikipedia (read 14 Sept 2026). Its biggest markets are United States, Mexico, Costa Rica. The route map shows every destination we hold.
Open the Southwest Airlines route map →What is Southwest Airlines’s main hub?
Southwest Airlines’s main hubs include Denver International Airport (DEN), Harry Reid International Airport (LAS), Chicago Midway International Airport (MDW) and Baltimore/Washington International Thurgood Marshall Airport (BWI).
What is the cheapest Southwest Airlines fare?
The cheapest Southwest Airlines nonstop fare we have seen is $18 one-way from San Francisco to Los Angeles, for travel on 11 Nov 2026 (seen 12 Oct 2026). Fares change daily, so compare the current price before you book.
What is Southwest Airlines’s longest route?
Of the routes in its published network, Southwest Airlines’s longest is Phoenix (PHX) to Honolulu, Oahu (HNL), about 4,689 km in a straight line.
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