Phoenix (PHX) to Detroit (DTT): 1,667 miles (2,683 km) great-circle, about 3h 50m nonstop by our estimate. Cheapest fare observed: $181 round-trip on Frontier, nonstop, departing June 1, 2026.
$181 round-trip, Frontier F94672, departing 2026-06-01 at 00:30, returning 2026-06-20. The recorded itinerary left on a Monday, returning on a Saturday 19 nights later; the fare was observed 37 days before departure. "Book this flight" opens Kiwi.com with the same airline and dates.
At $181, it ranked 7th of the 30 round-trip fares we recorded from PHX (median $231). That is 10.9 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: Columbus (1,667 mi) at $298 and Atlanta (1,584 mi) at $218.
Frontier had the cheapest fare on 19 of 30 PHX routes. It is the 12th longest of the 30 routes we track from PHX.
Of 4 departure airports with a fare to Detroit, Phoenix (PHX) ranked 3rd at $181. Lowest: $142 from Dallas (DFW); highest: $208 from Boston (BOS); 3 nonstop. Cheapest-fare airlines (routes): Frontier (2) and Spirit (2).
Travelpayouts fares (cheapest per route, observed April 25, 2026); OurAirports coordinates and elevations; IANA zones America/Phoenix, America/New_York; flight time is our estimate.