Phoenix (PHX) to Chicago (CHI): 1,437 miles (2,313 km) great-circle, about 3h 20m nonstop by our estimate. Cheapest fare observed: $202 round-trip on Allegiant Air, nonstop, departing May 22, 2026.
$202 round-trip, Allegiant Air G4759, departing 2026-05-22 at 15:17, returning 2026-05-25. The recorded itinerary left on a Friday, returning on a Monday 3 nights later; the fare was observed 27 days before departure. "Book this flight" opens Kiwi.com with the same airline and dates.
At $202, it ranked 9th of the 30 round-trip fares we recorded from PHX (median $231). That is 14.1 cents per great-circle mile (round-trip price over one-way distance), below the PHX median of 17.4 cents across 30 round-trip routes.
Routes from PHX of similar length: Indianapolis (1,485 mi) at $228 and New Orleans (1,297 mi) at $233.
PHX to CHI is the only one of 30 PHX routes where Allegiant Air priced cheapest. It is the 16th longest of the 30 routes we track from PHX.
Of 33 departure airports with a fare to Chicago, Phoenix (PHX) ranked 18th at $202. Lowest: $89 from Atlanta (ATL); highest: $1241 from Nairobi (NBO); 16 nonstop. Cheapest-fare airlines (routes): Frontier (15), Spirit (5), United Airlines (4), American Airlines (2), airline 0O (1) and Alaska Airlines (1), plus 5 more.
Travelpayouts fares (cheapest per route, observed April 25, 2026); OurAirports coordinates and elevations; IANA zones America/Phoenix, America/Chicago; flight time is our estimate.