Southwest Airlines WN

124 nonstop destinations · 14 countries

Main hubs: Denver (DEN) · Nashville (BNA) · Chicago (MDW)

Cheap Southwest Airlines nonstop deals

Direct round-trips on Southwest Airlines below their typical price · updated continuously
Chicago Nashville (BNA)
▼ 17%
Southwest
Jan 21 – Jan 29 · 8 nights
$227 typical $272
Chicago Philadelphia (PHL)
▼ 16%
Southwest
Jan 11 – Jan 18 · 7 nights
$279 typical $331
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Where Southwest Airlines flies nonstop

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About Southwest Airlines

Southwest Airlines (WN) operates 2001 nonstop routes to 124 destinations across 14 countries, departing from 124 airports. Its busiest bases by nonstop route count are Denver (DEN), Nashville (BNA) and Chicago (MDW). Updated 18 October 2026.

Busiest Southwest Airlines routes

Frequently asked questions

Where does Southwest Airlines fly?

Southwest Airlines (WN) flies nonstop to 124 destinations in 14 countries, with the most routes from Denver (DEN), Nashville (BNA) and Chicago (MDW).

How many destinations does Southwest Airlines fly to?

Southwest Airlines operates 2001 nonstop routes serving 124 destinations across 14 countries.

What are Southwest Airlines's main hubs?

Southwest Airlines's busiest airports by nonstop route count are Denver (DEN) (95 routes), Nashville (BNA) (89 routes) and Chicago (MDW) (81 routes).

Which routes does Southwest Airlines fly most frequently?

Southwest Airlines's most frequent nonstop routes are PHX–AUS (multiple daily), BWI–TPA (multiple daily), LAX–TUS (multiple daily), BWI–BNA (multiple daily) and BWI–PVD (multiple daily).

Southwest Airlines hubs: Denver (DEN) Nashville (BNA) Chicago (MDW) Dallas (DAL) Baltimore (BWI) Las Vegas (LAS)