Houston (IAH) to Los Angeles (LAX): 1,376 miles (2,215 km) great-circle, about 3h 15m nonstop by our estimate. Cheapest fare observed: $145 round-trip on Spirit, with 1 stop, departing June 25, 2026.
$145 round-trip, Spirit NK2030, departing 2026-06-25 at 10:39, returning 2026-06-29. The recorded itinerary left on a Thursday, returning on a Monday 4 nights later; the fare was observed 61 days before departure. "Book this flight" opens Kiwi.com with the same airline and dates.
At $145, it ranked 9th of the 30 round-trip fares we recorded from IAH (median $247). That is 10.5 cents per great-circle mile (round-trip price over one-way distance), below the IAH median of 17.9 cents across 30 round-trip routes.
Routes from IAH of similar length: Managua (1,366 mi) at $559 and New York (1,415 mi) at $143.
Spirit had the cheapest fare on 8 of 30 IAH routes. It is the 12th longest of the 30 routes we track from IAH.
Of 40 departure airports with a fare to Los Angeles, Houston (IAH) ranked 7th at $145. Lowest: $77 from Seattle (SEA); highest: $1224 from Sapporo (CTS); 11 nonstop. Cheapest-fare airlines (routes): Frontier (18), Spirit (5), Southwest (3), EVA Air (2), Fiji Airways (2) and WestJet (2), plus 8 more.
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.