Atlanta (ATL) to Boise (BOI): 1,835 miles (2,953 km) great-circle, about 4h 10m nonstop by our estimate. Cheapest fare observed: $202 round-trip on Southwest, with 1 stop, departing May 19, 2026.
$202 round-trip, Southwest WN245, departing 2026-05-19 at 06:10, returning 2026-06-02. The recorded itinerary left on a Tuesday, returning on a Tuesday 14 nights later; the fare was observed 24 days before departure. "Book this flight" opens Kiwi.com with the same airline and dates.
At $202, it ranked 14th of the 30 round-trip fares we recorded from ATL (median $212). That is 11.0 cents per great-circle mile (round-trip price over one-way distance), below the ATL median of 15.8 cents across 30 round-trip routes.
Routes from ATL of similar length: Las Vegas (1,743 mi) at $174 and Los Angeles (1,942 mi) at $123.
ATL to BOI is the only one of 30 ATL routes where Southwest priced cheapest. It is the 14th longest of the 30 routes we track from ATL.
Of 2 departure airports with a fare to Boise, Atlanta (ATL) ranked 2nd at $202. Lowest: $149 from San Diego (SAN); highest: $202 from Atlanta (ATL); 0 nonstop. Cheapest-fare airlines (routes): Southwest (2).
Travelpayouts fares (cheapest per route, observed April 25, 2026); OurAirports coordinates and elevations; IANA zones America/New_York, America/Boise; flight time is our estimate.