Chicago (MDW) to Phoenix (PHX): 1,441 miles (2,319 km) great-circle, about 3h 25m nonstop by our estimate. Cheapest fare observed: $216 round-trip on Frontier, nonstop, departing April 26, 2026.
$216 round-trip, Frontier F91735, departing 2026-04-26 at 06:20, returning 2026-04-29. The recorded itinerary left on a Sunday, returning on a Wednesday 3 nights later; the fare was observed 1 day before departure. "Book this flight" opens Kiwi.com with the same airline and dates.
At $216, it ranked 10th of the 30 round-trip fares we recorded from MDW (median $316). That is 15.0 cents per great-circle mile (round-trip price over one-way distance), below the MDW median of 22.1 cents across 30 round-trip routes.
Routes from MDW of similar length: Las Vegas (1,517 mi) at $350 and Mexico City (1,681 mi) at $252.
Frontier had the cheapest fare on 11 of 30 MDW routes. It is the 20th longest of the 30 routes we track from MDW.
Of 12 departure airports with a fare to Phoenix, Chicago (MDW) ranked 7th at $216. Lowest: $48 from Denver (DEN); highest: $409 from San Jose (SJC); 8 nonstop. Cheapest-fare airlines (routes): Frontier (8), Alaska Airlines (1), JetBlue (1), Southwest (1) and Volaris (1).
The reverse, Phoenix (PHX) to Chicago (CHI), was $202 round-trip on Allegiant Air, nonstop, departing May 22, 2026. Phoenix to Chicago flights.
Travelpayouts fares (cheapest per route, observed April 25, 2026); OurAirports coordinates and elevations; IANA zones America/Chicago, America/Phoenix; flight time is our estimate.