Open interactive map →Cheap flights from Las Vegas to Ontario
Planning a trip from Las Vegas to Ontario? Current fares start at €35 - a solid entry point for a flight to United States. Several airlines compete on this route, which helps keep fares relatively stable. Direct and one-stop options are both available - use the booking site to filter by preference. Use the booking button below to check live seats and dates.
A price alert on this page emails you if the fare to Ontario drops below a threshold you set. Searching for mid-week flights and avoiding school holiday windows can meaningfully cut costs on this route. If you're open on destination, use the interactive map from Las Vegas to compare Ontario against nearby alternatives - you may find a cheaper fare to a similar destination.
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Entry requirements for United States
EU passportESTA required (visa-waiver)
US passportN/A (domestic)
Requirements vary by nationality and change without notice. Check requirements for your nationality →
Alternative routes
Other ways to reach Ontario
Frequently asked questions
How much does a flight from Las Vegas to Ontario cost?
The cheapest fare currently available from Las Vegas to Ontario is €35. Prices on this route vary by season, day of week, and how far in advance you book. Click through to compare live availability for your dates before you book. Fares are refreshed regularly as our flight partners publish new availability.
Are there direct flights from Las Vegas to Ontario?
SkyHopp tracks both direct and connecting flights from Las Vegas to Ontario. Connecting flights are often priced lower but add travel time due to the layover. Whether a non-stop option exists on specific dates depends on airline schedules - use the "Direct only" filter on the interactive map to see non-stop options, or check the booking site for a full breakdown by stop count.
When is the cheapest time to fly from Las Vegas to Ontario?
Prices on this route typically dip during shoulder-season months, away from school holidays and public holiday windows. Mid-week departures - particularly Tuesday to Thursday - tend to be cheaper than flights on Fridays and Sundays from Las Vegas. Set a price alert on this page to watch the fare, or click through to compare live dates. Booking 3-6 weeks in advance generally offers the best balance of price and seat availability on this route.