Chicago to Los Angeles flights: the cheapest month to fly
$111one-way
Mon 7 Dec
Frontier Airlines, 1 stop, O'Hare International to Ontario International, 7 h 30 min
See flights for Mon 7 Dec on Aviasales: Chicago to Los Angeles, Mon 7 Dec, Frontier Airlines, 1 stopOpens the live search on Aviasales. A fare travellers found, not a live quote.
Each fold is a month; its height is the lowest one-way fare found. Coral is the cheapest; "none" means no fare was found.
Fare by month
tap a month; none = no fare foundCheapest found: Mon 7 Dec, $111, Frontier Airlines, 1 stop from O'Hare International. Tap a month to see its days.
The cheapest one-way fare found from Chicago to Los Angeles is $111, for a flight from O'Hare International in Dec 2026; the priciest month in the next ten, Aug 2027, shows $212. All are fares found in recent searches, not live quotes.
None of the cheapest monthly fares is for a direct flight; with stops, the typical journey takes 8 h 4 min. Direct flights, where they run, cost more than these fares. The median monthly fare is $131, so the cheapest month sits 15% below the usual; the priciest, Aug 2027, is 62% above it. Monthly lows come most often from Frontier Airlines (4 months) and Alaska Airlines (3); the $111 cheapest month is Frontier Airlines.
Every month
- November 2026Tue 17 Nov, Frontier Airlines, 1 stop, O'Hare International to Ontario International, 6 h 5 min$120Search Tue 17 Nov on Aviasales: Chicago to Los Angeles, Frontier Airlines, 1 stop
- December 2026Mon 7 Dec, Frontier Airlines, 1 stop, O'Hare International to Ontario International, 7 h 30 min$111Search Mon 7 Dec on Aviasales: Chicago to Los Angeles, Frontier Airlines, 1 stop
- January 2027Mon 25 Jan, Frontier Airlines, 1 stop, O'Hare International to Ontario International, 19 h 44 min; long connection$125Search Mon 25 Jan on Aviasales: Chicago to Los Angeles, Frontier Airlines, 1 stop
- February 2027Mon 1 Feb, Frontier Airlines, 1 stop, O'Hare International to Ontario International, 6 h 26 min$131Search Mon 1 Feb on Aviasales: Chicago to Los Angeles, Frontier Airlines, 1 stop
- March 2027: no fare foundSearch March 2027 on Aviasales: Chicago to Los Angeles
- April 2027: no fare foundSearch April 2027 on Aviasales: Chicago to Los Angeles
- May 2027Tue 11 May, Alaska Airlines, 1 stop, O'Hare International to Ontario International, 10 h 47 min$173Search Tue 11 May on Aviasales: Chicago to Los Angeles, Alaska Airlines, 1 stop
- June 2027: no fare foundSearch June 2027 on Aviasales: Chicago to Los Angeles
- July 2027Thu 15 Jul, Alaska Airlines, 1 stop, O'Hare International to Ontario International, 9 h 7 min$174Search Thu 15 Jul on Aviasales: Chicago to Los Angeles, Alaska Airlines, 1 stop
- August 2027Sun 8 Aug, Alaska Airlines, 1 stop, O'Hare International to John Wayne Airport - Santa Ana, 8 h 4 min$212Search Sun 8 Aug on Aviasales: Chicago to Los Angeles, Alaska Airlines, 1 stop
For connecting trips the airline shown is the one the search returned as the main carrier; other legs may be with other airlines.