Detroit (DTW) to Queretaro (QRO): 1,785 miles (2,872 km) great-circle, about 4h 05m nonstop by our estimate. Cheapest fare observed: $494 round-trip on Frontier, with 2 stops, departing May 9, 2026.
$494 round-trip, Frontier F91957, departing 2026-05-09 at 08:52, returning 2026-05-18. The recorded itinerary left on a Saturday, returning on a Monday 9 nights later; the fare was observed 14 days before departure. "Book this flight" opens Kiwi.com with the same airline and dates.
At $494, it ranked 21st of the 30 round-trip fares we recorded from DTW (median $275). That is 27.7 cents per great-circle mile (round-trip price over one-way distance), above the DTW median of 22.2 cents across 30 round-trip routes.
Routes from DTW of similar length: Las Vegas (1,745 mi) at $129 and Phoenix (1,667 mi) at $174.
Frontier had the cheapest fare on 17 of 30 DTW routes. It is the 12th longest of the 30 routes we track from DTW.
That depends on your passport and trip, so check the official source for Mexico: Instituto Nacional de Migracion (Mexico). Connecting elsewhere? Check that country's transit rules too.
Travelpayouts fares (cheapest per route, observed April 25, 2026); OurAirports coordinates and elevations; IANA zones America/New_York, America/Mexico_City; flight time is our estimate.