Best Flights starting from $125
from$125economy
Las Vegas (LAS)
Mon, Apr 20
One-way
Ontario (ONT)
—
from$125economy
Las Vegas (LAS)
Thu, Apr 23
One-way
Ontario (ONT)
—
from$131economy
Las Vegas (LAS)
Wed, Apr 22
One-way
Ontario (ONT)
—
from$184economy
Las Vegas (LAS)
Sun, Apr 19
One-way
Ontario (ONT)
—
from$184economy
Las Vegas (LAS)
Tue, Apr 21
One-way
Ontario (ONT)
—
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Other Options for This Route
Other Destinations
Las Vegas (LAS) to Seattle (SEA) in April from $28
From $28
Las Vegas (LAS) to Salt Lake City (SLC) in April from $30
From $30
Las Vegas (LAS) to Dallas (DFW) in April from $44
From $44
Las Vegas (LAS) to Santa Ana (SNA) in April from $60
From $60
Las Vegas (LAS) to Atlanta (ATL) in April from $68
From $68
Las Vegas (LAS) to Newark (EWR) in April from $70
From $70
Flights from Other Cities
Denver (Any) to Ontario (ONT) in April from $56
From $56
San Francisco (SFO) to Ontario (ONT) in April from $59
From $59
Portland (PDX) to Ontario (ONT) in April from $89
From $89
Las Vegas (Any) to Ontario (ONT) in April from $125
From $125
San Francisco (SFO) to Ontario (ONT) in April from $133
From $133
San Antonio (SAT) to Ontario (ONT) in April from $135
From $135
✈️ Flight Guide: Las Vegas (LAS) → Ontario (ONT)
Complete travel information for your April journey
Departing from Las Vegas (LAS) FAQs
In April, the Las Vegas Harry Reid International Airport (LAS) to Ontario International Airport (ONT) route is commonly served by carriers such as Southwest Airlines, Allegiant Air, American Airlines and Delta Air Lines on select schedules. Flight frequency increases slightly for spring travel and weekend leisure demand, so check carrier pages for the latest seat sales and direct flight availability. Book early to lock in cheap Las Vegas to Ontario flights for April.
Typical nonstop flight time between Las Vegas Harry Reid International Airport (LAS) and Ontario International Airport (ONT) is about 1 hour and 10 minutes to 1 hour and 25 minutes. Actual block time can vary by carrier, routing, and wind conditions, so allow extra time for boarding and deplaning. Use this flight duration when comparing connecting versus direct flight options for your April trip.
Yes — April can offer competitively priced fares for Las Vegas to Ontario routes, especially midweek and outside major holiday weekends. Use fare alerts, search flexible dates, and compare budget carriers to find the best cheap flights Las Vegas to Ontario in April. Book as soon as you find a fare that fits your budget because spring deals often sell out quickly.
Las Vegas Harry Reid International Airport (LAS) offers ride-hailing, taxis, rental cars, and dedicated airport shuttles that operate early morning hours to get you to your domestic flight. If you’re connecting to the LAS–ONT route in April, pre-book a shuttle or ride-share to ensure timely arrival for early departures. Check traffic estimates and airport security wait times before you leave to avoid missing your flight.
In April, Las Vegas Harry Reid International Airport (LAS) routinely supports higher passenger volumes with additional staffing, seasonal parking options, and promotional flights tied to spring events and conventions. Airlines may add extra frequencies for popular weekend travel, so check LAS flight status and airline announcements for April-specific schedules. Sign up for airline alerts to receive real-time updates on any added flights or changes.
From Las Vegas Harry Reid International Airport (LAS) you can easily connect to nearby major destinations like Los Angeles, Phoenix, San Diego, Salt Lake City and Palm Springs, which are popular for multi-city itineraries in April. Many travelers combine a LAS departure with a short hop to Southern California and then onward to Ontario International Airport (ONT), taking advantage of competitive fares and flexible schedules. Consider multi-city searches to compare prices and routing for your April trip.
Arriving at Ontario (ONT) FAQs
Ontario International Airport (ONT) offers rental car counters, parking garages, ground transportation zones, and a range of dining and retail options suitable for spring travelers. In April, some seasonal services and extended ground-transportation hours may be in effect to accommodate higher passenger volumes. Check ONT's official site for updated facility hours, and pre-book car rentals to secure the best rates for your April arrival.
From Ontario International Airport (ONT) you can reach Los Angeles, Anaheim, and Palm Springs by rental car, shuttle services, ride-hailing apps, and regional trains/buses, with travel times varying by destination and traffic. April typically offers mild driving conditions but can have busy corridors during holiday weekends and event dates like Coachella. Compare shuttle and ride-share prices, or reserve a rental car in advance to secure better April rates.
Yes, Ontario International Airport (ONT) regularly receives nonstop flights from Las Vegas Harry Reid International Airport (LAS) during April, particularly on weekends and peak travel days. Frequency depends on airline schedules, so check carrier timetables for the exact April dates. If you want the fastest travel option, filter search results for nonstop LAS to ONT flights when booking.
April in the Ontario area (Riverside County, Inland Empire) typically brings mild temperatures, low precipitation and comfortable spring weather, which rarely disrupts flights. Occasional marine layer fog near coastal approaches can create minor delays, so monitor your flight status and allow cushion time for transfers. For the smoothest experience, subscribe to airline notifications for any April weather-related schedule adjustments.
April brings several high-traffic events in Southern California, including music festivals like Coachella and Stagecoach (near Indio), as well as spring break and convention travel in Los Angeles and Anaheim, which can increase fares and ground-transport demand at Ontario International Airport (ONT). Expect higher ride-share prices and longer wait times on event weekends; book airport transfers and flights in advance to secure better rates. Consider alternate arrival times or nearby airports if you want to avoid peak congestion.
ONT area and nearby cities like Ontario, Riverside and San Bernardino offer a range of hotels, from airport-brand chains to boutique options in downtown Riverside and Ontario Mills area. For April stays, search for hotels offering free airport shuttles, flexible cancellation, and spring specials to secure value during event periods. Book hotels early if your travel coincides with major April festivals or conventions to ensure availability and better rates.
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April Events and Festivals Impacting LAS to ONT Travel
April sees several events that influence travel patterns between Las Vegas Harry Reid International Airport (LAS) and Ontario International Airport (ONT). In Southern California, Coachella and Stagecoach festivals (Indio) can drive spikes in arrival demand and ride-share pricing at ONT. Las Vegas hosts conventions, live entertainment residencies and sports events in April, increasing departures from LAS. These events can raise fares and lengthen ground-transport wait times, so plan ahead and secure flights and transfers early.
Best Time to Fly from Las Vegas Harry Reid International Airport (LAS) to Ontario International Airport (ONT) — April Guide
The best time to fly from Las Vegas Harry Reid International Airport (LAS) to Ontario International Airport (ONT) in April is midweek (Tuesday–Thursday) and early mornings when both fares and airport congestion are typically lower. Avoid peak festival weekends and holiday travel days to save on fares and last-mile transportation. If flexibility is limited, compare multiple departure times within a day to find the best combination of price and convenience.
Direct vs. Connecting Flights: LAS to ONT in April
For the short LAS to ONT hop, nonstop flights are usually the best value for time — averaging just over an hour in the air — and reduce the risk of delays and missed connections. Connecting itineraries may be cheaper during low-demand periods but will add hours and potential itinerary risk. In April, when airlines sometimes add weekend frequencies, nonstop options are often plentiful; weigh the marginal savings of a connection against the time cost.
Airline Comparison for Las Vegas Harry Reid International Airport (LAS) to Ontario International Airport (ONT) — April
Carriers serving the LAS–ONT market in April typically include low-cost airlines like Allegiant and Southwest alongside legacy carriers such as American and Delta on select schedules. Low-cost carriers often offer the lowest base fares but charge for checked bags and seat selection, while legacy carriers include amenities in higher fare classes and may provide better recovery options for disruptions. Review each airline’s baggage fees, change policies and loyalty program benefits to choose the best fit for your April travel preferences.
Seasonal Travel Tips for April — LAS to ONT
April travel between Las Vegas Harry Reid International Airport (LAS) and Ontario International Airport (ONT) benefits from mild weather, but you should prepare for cool desert mornings and warmer afternoons. Pack layered clothing, confirm rental car reservations in advance, and download airline apps for mobile boarding passes and real-time flight alerts. Anticipate longer ground-transport waits during festival weekends and allow extra time for parking, security and baggage collection.
Flight Time and Schedules — Las Vegas Harry Reid International Airport (LAS) to Ontario International Airport (ONT) in April
Nonstop flight time from Las Vegas Harry Reid International Airport (LAS) to Ontario International Airport (ONT) generally ranges from 1 hour 10 minutes to 1 hour 25 minutes. In April, schedules can feature increased weekend frequency to accommodate leisure travelers, while midweek flights tend to be fewer and cheaper. Major carriers and low-cost airlines adjust capacity for spring demand, so always verify exact departure and arrival times before booking.
Cheap Flights from Las Vegas Harry Reid International Airport (LAS) to Ontario International Airport (ONT) — April Deals
To find cheap flights from Las Vegas Harry Reid International Airport (LAS) to Ontario International Airport (ONT) in April, search for midweek departures, compare low-cost carriers and legacy carriers, and use flexible date tools. Set fare alerts and check early-morning or late-evening flights for lower prices; avoid festival weekends (Coachella/Stagecoach nearby) unless you want event pricing. Consider booking bundled options like hotel + flight or searching nearby alternate airports to uncover better rates.