Direct (nonstop) flights from Ontario to Boise
1 airline flys nonstop from Ontario International Airport (ONT) to Boise Air Terminal (BOI). It's 660 miles (1,062 km), about 2h 1m in the air. Operated by Alaska Airlines.
Alaska Airlines
Route data last updated: May 28, 2026
Airlines with non-stop flights
Alternative Routes
Other ways to fly from Ontario to Boise with one stop · direct emits 122 kg CO₂ per passenger
Looking for the return flight?
BOI → ONT: Flights from Boise to OntarioOther direct flights from Ontario
Direct flights from Boise (BOI)
Frequently Asked Questions
How long is the direct flight from Ontario to Boise?
A nonstop flight from Ontario (ONT) to Boise (BOI) takes approximately 2 hours and 1 minutes. The distance is 660 miles (1,062 km).
Which airlines fly nonstop from Ontario to Boise?
Just Alaska Airlines.
Is there a nonstop flight from Ontario to Boise?
Yes. 1 airline: Alaska Airlines.
How far is Ontario from Boise?
The flight distance from Ontario to Boise is 660 miles (1,062 km), measured as the great-circle (shortest air) distance. That's roughly the same distance as the length of Italy.
What type of aircraft flies from Ontario to Boise?
At 2h 1m, this route typically uses narrow-body or mid-range jets — Boeing 737 MAX or Airbus A320neo. Varies by airline.
What is the carbon footprint of a flight from Ontario to Boise?
Roughly 122 kg CO2 per passenger one-way. That's about the same as driving 610 km.
Is the return flight from Boise to Ontario also nonstop?
Yes — nonstop flights run both ways. Flight time may differ slightly due to wind patterns.
When is the cheapest time to fly from Ontario to Boise?
Midweek flights (Tue/Wed) outside holiday peaks are usually cheapest. 3-6 weeks ahead is a good window for this route. Use "Check Prices" above to compare.
How early should I arrive at Ontario International Airport for this flight?
1.5-2 hours for domestic. Add more time during holidays or busy travel weekends.