Direct (nonstop) flights from Las Vegas to Ontario
2 airlines fly nonstop from Harry Reid International Airport (LAS) to Ontario International Airport (ONT). It's 197 miles (317 km), about 1h 5m in the air. Operated by Frontier Airlines, Southwest Airlines.
Frontier Airlines
Southwest Airlines
Route data last updated: May 22, 2026
Airlines with non-stop flights
F9
Frontier Airlines
WN
Southwest Airlines
Alternative Routes
Other ways to fly from Las Vegas to Ontario with one stop · direct emits 36 kg CO₂ per passenger
Looking for the return flight?
ONT → LAS: Flights from Ontario to Las VegasOther direct flights from Las Vegas
Direct flights from Ontario (ONT)
Frequently Asked Questions
How long is the direct flight from Las Vegas to Ontario?
A nonstop flight from Las Vegas (LAS) to Ontario (ONT) takes approximately 1 hours and 5 minutes. The distance is 197 miles (317 km).
Which airlines fly nonstop from Las Vegas to Ontario?
2 airlines: Frontier Airlines, Southwest Airlines.
Is there a nonstop flight from Las Vegas to Ontario?
Yes. 2 airlines: Frontier Airlines, Southwest Airlines.
How far is Las Vegas from Ontario?
The flight distance from Las Vegas to Ontario is 197 miles (317 km), measured as the great-circle (shortest air) distance. That's roughly the same distance as New York to Washington DC.
What type of aircraft flies from Las Vegas to Ontario?
At 1h 5m, this route typically uses narrow-body aircraft — Boeing 737 or Airbus A320. Varies by airline.
What is the carbon footprint of a flight from Las Vegas to Ontario?
Roughly 36 kg CO2 per passenger one-way. That's about the same as driving 180 km.
Is the return flight from Ontario to Las Vegas 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 Las Vegas to Ontario?
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 Harry Reid International Airport for this flight?
1.5-2 hours for domestic. Add more time during holidays or busy travel weekends.