Best Flights starting from $120
from$120economy
Las Vegas (Any)
Sat, May 30
One-way
Ontario (ONT)
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from$120economy
Las Vegas (Any)
Sun, May 31
One-way
Ontario (ONT)
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from$124economy
Las Vegas (Any)
Wed, May 27
One-way
Ontario (ONT)
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from$124economy
Las Vegas (Any)
Thu, May 28
One-way
Ontario (ONT)
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from$124economy
Las Vegas (Any)
Fri, May 29
One-way
Ontario (ONT)
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from$140economy
Las Vegas (Any)
Tue, May 26
One-way
Ontario (ONT)
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from$150economy
Las Vegas (Any)
Mon, May 25
One-way
Ontario (ONT)
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Other Options for This Route
Other Destinations
Las Vegas (Any) to Mcallen (MFE) in May from $70
From $70
Las Vegas (Any) to Fresno (FAT) in May from $76
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Las Vegas (Any) to Santa Ana (SNA) in May from $78
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Las Vegas (Any) to Toronto (YYZ) in May from $80
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Las Vegas (Any) to Los Angeles (Any) in May from $84
From $84
Las Vegas (Any) to Reno (RNO) in May from $88
From $88
Flights from Other Cities
Denver (Any) to Ontario (ONT) in May from $40
From $40
Denver (Any) to Ontario (ONT) in May from $56
From $56
Las Vegas (LAS) to Ontario (ONT) in May from $56
From $56
Omaha (OMA) to Ontario (ONT) in May from $80
From $80
Cleveland (Any) to Ontario (ONT) in May from $86
From $86
Grand Rapids (GRR) to Ontario (ONT) in May from $86
From $86
✈️ Flight Guide: Las Vegas (Any) → Ontario (ONT)
Complete travel information for your May journey
Travelers flying from Las Vegas (All Airports) (LASA) to Ontario International Airport (ONT) in May should prepare for shoulder-to-peak season conditions. Nonstop options often operate multiple times per day; peak demand occurs around weekends and Memorial Day weekend. Nearby cities commonly served from LASA include Henderson (NV), North Las Vegas (NV), Primm (NV), and major Southern California destinations like Los Angeles, San Diego and Phoenix — useful for multi-city itineraries. For the best May fares, search flexible dates, set fare alerts, and consider midweek departures. Pack sunscreen and light layers for Las Vegas daytime heat and cool desert evenings. Book now to lock in competitive prices for May travel and compare nonstop LASA to ONT flights to save time.
Departing from Las Vegas (Any) FAQs
Las Vegas (All Airports) (LASA) refers to the combined airport market serving the Las Vegas metro area, typically including Harry Reid International Airport (LAS) and nearby general aviation fields and secondary airports used by low-cost and charter carriers. When you search LASA to Ontario International Airport (ONT) flights for May, many booking engines aggregate these airports so you see the best fares and schedules across the region. Check results carefully to confirm the exact departing facility before you book.
May is a shoulder-to-peak travel month for Las Vegas, with conventions and spring events increasing passenger volumes; expect busier security lines on weekends and major event dates like Electric Daisy Carnival. Arrive at least 90–120 minutes before domestic flights to allow time for parking, shuttle transfers between terminals or off-site lots, and TSA screening. For early-morning or midday departures midweek, 75–90 minutes is often sufficient but check airline guidance.
Yes, several carriers operate nonstop flights between the Las Vegas market (LASA) and Ontario International Airport (ONT) especially in May when demand rises for Southern California travel. Frequencies increase on peak days and holidays; use flexible-date search to find the most direct connections and compare nonstop vs one-stop fares. Booking a nonstop flight is usually faster and lower risk for a short route.
Baggage and pet policies depend on the airline, but major carriers servicing LASA to ONT usually offer a standard carry-on plus one personal item and charge checked-bag fees for the first and second bags on basic economy fares. Pet travel in-cabin is commonly allowed for small pets with a fee; check carrier-specific size and health requirements and book pet spots early as they are limited. Confirm policies on your chosen airline's site before traveling in May.
Yes — May often shows a mix of moderate fares and spikes around Memorial Day weekend and major Las Vegas events. Mid-week departures (Tuesday–Thursday) typically have the lowest fares, while holiday weekends and festival dates push prices higher. Use fare alerts and book 3–8 weeks in advance for the best balance of choice and price for travel in May.
Las Vegas offers a wide range of ground options including shared shuttles, ride-hailing services, taxis, public transit and airport shuttles to and from off-site parking. In May, higher demand during events can increase wait times for rideshares, so allow extra time or reserve an airport shuttle in advance. If using off-site lots, verify shuttle frequency and estimated travel time to the terminal when booking.
Arriving at Ontario International Airport (ONT) in May offers convenient access to Inland Empire cities and Southern California attractions. Ground transit options include ride-hailing, taxis, onsite car rentals, Metrolink rail service and scheduled shuttles to neighboring communities like Riverside, San Bernardino and Anaheim. May's pleasant weather makes onward travel comfortable, but Memorial Day and local events can increase demand for rental cars and shuttles. For the smoothest arrival experience, pre-book rental cars or shuttle transfers, check ONT parking availability online, and consider offsite options for long-term stays. Explore nearby destinations — Disneyland Anaheim, downtown Los Angeles, Palm Springs — and book tickets and transfers early to secure the best rates for May travel.
Arriving at Ontario (ONT) FAQs
Ontario International Airport (ONT) in May typically experiences moderate passenger flows with increased activity during weekends and Southern California events. Expect efficient domestic arrival procedures and multiple ground-transportation options such as car rental, rideshare, shuttle services, and regional buses. Confirm your transportation in advance for peak travel days to avoid delays.
Ontario International Airport (ONT) offers car rentals on-site, rideshares (Uber/Lyft), taxis, regional shuttle services, and Metrolink rail connections to Riverside and Los Angeles counties. In May, traffic patterns can vary—expect heavier roads during morning and evening commute windows. If you’re headed to Anaheim, Riverside, San Bernardino, or Los Angeles, pre-booking a rental or shuttle can save time and often money.
As of May travel planning, most domestic travel advisories have been lifted, but local health and airline policies can change. Check the Ontario International Airport (ONT) official site and your airline for up-to-date masking, testing, or vaccine requirements, as well as any regional public health advisories. For international connections or multi-leg itineraries, verify entry rules for your final destination.
Ontario International Airport (ONT) provides short-term and long-term parking with competitive daily rates; May demand increases around holidays and events. Reserve rental cars in advance for the best rates and to guarantee vehicle class, and compare onsite vs offsite options. If you're traveling for Southern California events, consider offsite pre-booked parking with shuttle service to avoid full lots.
Ontario International Airport (ONT) is a gateway to Inland Empire destinations including Ontario city, Riverside, San Bernardino, and popular Southern California attractions like Disneyland Anaheim, downtown Los Angeles, Palm Springs, and San Diego for multi-destination trips. In May, mild Southern California weather makes it easy to combine theme parks or beach trips with Inland Empire visits.
ONT occasionally schedules terminal or roadway upgrades outside peak holiday periods; in May you may encounter short-term construction projects or lane closures near access roads. Check ONT's official notices before travel and allow extra time for airport access if construction alerts are posted.
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Events & Festivals Affecting LASA→ONT Travel in May
May brings several events that can influence ticket prices and availability between Las Vegas and Ontario. Las Vegas often hosts large electronic music festivals (e.g., Electric Daisy Carnival) and business conferences that drive demand and fares upward. In Southern California, nearby attractions and region-wide events, including theme-park promotions in Anaheim and spring festivals in Riverside and Los Angeles, can increase inbound traffic to ONT. If your trip coincides with major festivals or Memorial Day weekend, book flights and ground transportation early to avoid price hikes and sold-out rental cars. CTA: Check event dates in both Las Vegas and Inland Empire cities before finalizing May travel and reserve flights early.
Best Time to Fly from Las Vegas (All Airports) (LASA) to Ontario International Airport (ONT) — May Guide
The best time to fly from Las Vegas (All Airports) (LASA) to Ontario International Airport (ONT) in May is midweek (Tuesday–Thursday) and on early-morning departures. These time slots typically offer lower fares, fewer crowds, and better on-time performance than weekend or evening flights. Avoid traveling on Memorial Day weekend when fares and occupancy rise sharply. If your schedule is flexible, book 3–8 weeks in advance and use flexible-date search tools to find the cheapest May travel dates. CTA: Use flexible-date search to find the best-priced LASA to ONT flights in May and secure a ticket before holiday surges.
Direct vs Connecting Flights — LASA to ONT in May
For LASA→ONT in May, nonstop flights are generally preferable: they save time (about 1–1.25 hours airborne) and reduce the risk of missed connections. Connecting flights may be cheaper on some dates but often require longer travel time and skillful scheduling to avoid tight layovers. If price is the priority and the savings are significant, consider one-stop itineraries, otherwise opt for direct service for convenience. CTA: Compare nonstop and connecting options for your May travel dates and choose the best trade-off between price and total travel time.
Airline Comparison for LASA → ONT Flights in May
Major carriers and low-cost airlines serving the Las Vegas market to Ontario in May vary by price and service. Southwest often provides multiple daily nonstop flights with two free checked bags (strong value for families), Allegiant/Frontier may offer lower base fares but charge for seats and baggage, and network carriers like American, Delta, or United may offer convenient connections and loyalty benefits. For May travel, compare total trip cost (fare + baggage + seat fees) rather than base fare alone. CTA: Use the comparison to pick the carrier that best fits your budget and service needs for LASA to ONT flights in May.
Seasonal Travel Tips for May — LASA to ONT
May weather for LASA→ONT travel typically features hot Las Vegas days and warm-to-mild Southern California conditions. Pack light layers for cool morning/evening temperatures and breathable clothes for hot afternoons; sunscreen and sunglasses are must-haves. Reserve rental cars and parking in advance for Memorial Day and festival dates, allow extra time for rideshares at Las Vegas pickup points, and consider early-morning flights to avoid peak traffic. Bring a reusable water bottle to stay hydrated, and download airline apps for real-time updates and mobile boarding passes. CTA: Prepare for May travel — book your rental car and compare nonstop LASA→ONT flights today to ensure smooth transit.
Flight Time and Schedules — Las Vegas (All Airports) (LASA) to Ontario International Airport (ONT) in May
Nonstop flight time from Las Vegas (All Airports) (LASA) to Ontario International Airport (ONT) averages around 1 hour to 1 hour 15 minutes. In May, airlines typically schedule multiple daily departures, concentrating service in morning and early evening windows to capture business travelers and leisure connections. Frequency increases slightly on Fridays and Sundays to accommodate weekend trips; midweek flights tend to be less crowded and often cheaper. For the most reliable options, book nonstop morning flights to avoid afternoon weather or air-traffic delays. CTA: Check airline schedules and book a nonstop LASA→ONT slot in May for the fastest travel time.
Cheap Flights from Las Vegas (All Airports) (LASA) to Ontario International Airport (ONT) in May
Finding cheap flights from Las Vegas (All Airports) (LASA) to Ontario International Airport (ONT) in May is feasible with the right approach. Primary strategies include searching flexible dates (±3 days), booking midweek departures (Tuesday–Thursday), subscribing to fare alerts, and comparing budget carriers that operate short-haul routes. Sample price range in early May for nonstop economy seats often falls between $70–$160 round-trip depending on demand and advance purchase; expect spikes near Memorial Day weekend and Las Vegas festivals. Use location-based modifiers in searches like “cheap Las Vegas to Ontario flights May” or “LASA to ONT deals May” and set alerts on Google Flights or Kayak for best savings. CTA: Set a fare alert now and compare nonstop LASA→ONT options to lock the best May price.