Flights from BTM(Butte|Bert Mooney Airport) to ONT(Los Angeles|Ontario International Airport)
Flights from Butte to Los Angeles
Departure
Select Date
Return
Select Date
BTM to ONT, Bert Mooney Airport to Ontario International Airport Cheap Flights
Find the best flight deals from Bert Mooney Airport to Ontario International Airport
BTM - ONT Flight Information
Butte → Los AngelesFlight information between Butte and Los Angeles
Cheapest one-way flight price
US$245
Cheapest return ticket price
US$265
Cheapest month
November
Peak season for travel
November
Flight distance
1,392.41 km
BTM - ONT Cheap Flights
Compare flight options and choose the best deal for your journey
BTM - ONT Flight Airlines
Major airlines flying this route
BTM - ONT Route FAQs
Common questions about flights from BTM to ONT
Based on HopeGoo data, Delta Air Lines offers one-way fares as low as US$245 on Cheapest nonstop routes (e.g. BTM to ONT on Sat, Apr 11), while Delta Air Lines offers Cheapest nonstop round-trips from US$265 departing on Sat, Mar 14 and returning on Wed, Mar 18.
By analyzing data from all airlines on the HopeGoo flight calendar, it looks like the best time to book a flight from Butte to Ontario is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.
To find best deals on flights from Butte to Ontario, you can use various tools on HopeGoo: · Be flexible with your travel dates to get the cheapest flight deal. Now the cheapest flight deal is on Sat, Apr 11, with one-way flights priced at just US$245. · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is Delta Air Lines. · Set up price alerts to easily monitor ticket prices without having to check every day. · Check HopeGoo flight deals and promo codes frequently. · Avoid peak season unless you book very early. It seems the peak season for Ontario travel is around November. · Get exclusive promo codes for HopeGoo app users.
The cheapest months to fly from Butte to Ontario is November, when demand for travel is lower.
After crunching the numbers on our March flight calendar, it's currently cheapest to fly from Butte to Ontario on March 14, 2026 with Delta Air Lines, with prices starting at US$265.
The time difference between Ontario and Butte is 1h.
Tickets can only be changed or canceled if permitted by airline policy. To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your HopeGoo, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy. However, if the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.