Chicago (MDW) to Las Vegas (LAS): 1,517 miles (2,442 km) great-circle, about 3h 30m nonstop by our estimate. Cheapest fare observed: $350 round-trip on Southwest, nonstop, departing June 14, 2026.
$350 round-trip, Southwest WN2032, departing 2026-06-14 at 22:25, returning 2026-06-18. The recorded itinerary left on a Sunday, returning on a Thursday 4 nights later; the fare was observed 50 days before departure. "Book this flight" opens Kiwi.com with the same airline and dates.
At $350, it ranked 16th of the 30 round-trip fares we recorded from MDW (median $316). That is 23.1 cents per great-circle mile (round-trip price over one-way distance), close to the MDW median of 22.1 cents across 30 round-trip routes.
Routes from MDW of similar length: Phoenix (1,441 mi) at $216 and Mexico City (1,681 mi) at $252.
Southwest had the cheapest fare on 12 of 30 MDW routes. It is the 19th longest of the 30 routes we track from MDW.
Of 32 departure airports with a fare to Las Vegas, Chicago (MDW) ranked 30th at $350. Lowest: $51 from San Francisco (SFO); highest: $465 from Los Cabos (SJD); 16 nonstop. Cheapest-fare airlines (routes): Frontier (24), Alaska Airlines (2), Air Canada (1), American Airlines (1), JetBlue (1) and Southwest (1), plus 2 more.
The reverse, Las Vegas (LAS) to Chicago (CHI), was $170 round-trip on Frontier, nonstop, departing June 12, 2026. Las Vegas to Chicago flights.
Travelpayouts fares (cheapest per route, observed April 25, 2026); OurAirports coordinates and elevations; IANA zones America/Chicago, America/Los_Angeles; flight time is our estimate.