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December is a high-demand month for departures from Las Vegas (All Airports) (LASA) toward Southern California. Expect peak periods around the first and last full weekends of December and the week of Christmas. For SEO-optimized booking, target phrases like "cheap flights Las Vegas to Ontario December" and "LASA to ONT direct flight December" when searching. Travelers should monitor fares 4–8 weeks in advance and use mid-week departures to find lower rates. CTA: Check direct flight availability now and sign up for fare alerts to catch December discounts.
December arrivals at Ontario International Airport (ONT) are influenced by holiday tourism and local events. For SEO visibility, optimize search phrases like "Arrive ONT in December" and "Ontario airport ground transportation holiday." Book rental cars and shuttle services in advance, especially if visiting Disneyland in Anaheim or business centers in Riverside and San Bernardino. CTA: Check ONT ground transport options and reserve a rental car today to secure December availability.
December brings holiday entertainment that affects flights between Las Vegas (All Airports) (LASA) and Ontario International Airport (ONT). Las Vegas hosts seasonal shows and New Year’s events, while Southern California attractions like Disneyland in Anaheim and holiday markets in Riverside increase demand at ONT. If attending events, book flights and hotels early and allow extra time for ground transport. CTA: Check event dates and align your travel plans to avoid peak congestion.
The best time to fly from Las Vegas (All Airports) (LASA) to Ontario International Airport (ONT) in December is mid-week (Tuesday–Thursday) and during off-peak hours (early morning or late evening). Avoid peak holiday travel days like the Friday before Christmas and the Sunday after New Year’s Eve, when fares and crowds spike. Booking 4–8 weeks ahead and flying outside the peak weekend windows yields the best combination of price and convenience. CTA: Compare midweek December fares now to secure the best deals.
Direct nonstop flights from Las Vegas (All Airports) (LASA) to Ontario International Airport (ONT) save time and reduce missed-connection risk, making them ideal for short December trips and tight holiday schedules. Connecting flights may be cheaper, especially if you’re flexible with layover airports (e.g., LAX or PHX), but they add risk and total travel time. For holiday weekends, prioritize nonstops when possible; for lower cost, consider a single-stop itinerary mid-week. CTA: Search both nonstop and one-stop options to compare price and total travel time for your December trip.
In December, budget carriers may offer lower headline fares between Las Vegas (All Airports) (LASA) and Ontario International Airport (ONT) but often charge for checked bags and seat selection. Legacy carriers usually include at least a carry-on and have more flexible change policies, which can be valuable during holiday travel. Consider total trip cost including baggage and seat fees, flight times, and on-time performance when selecting an airline. CTA: Compare final prices (including fees) across airlines before booking your December flight.
Pack for mild winter evenings—layers and a light jacket—for December trips between Las Vegas (All Airports) (LASA) and Ontario International Airport (ONT). Avoid peak pickup times at ONT by scheduling arrivals outside of event hours and reserve rental cars in advance. Use mobile boarding passes and enroll in airline notifications for gate and schedule updates. For holiday travel, buy refundable or flexible tickets if possible and consider travel insurance for last-minute disruptions. CTA: Prepare your December packing list and sign up for flight alerts to stay updated.
Nonstop flights between Las Vegas (All Airports) (LASA) and Ontario International Airport (ONT) usually last about 1 hour to 1 hour 20 minutes. Schedules in December consolidate around morning and evening peaks to accommodate business and leisure travelers; expect multiple daily options on busy dates. Airlines may add extra flights for holiday demand, particularly the weekend before Christmas and immediately after New Year’s. CTA: Check live schedule feeds to find the best departure time for your December travel plans.
To find cheap December flights from Las Vegas (All Airports) (LASA) to Ontario International Airport (ONT), search flexible dates across early and mid-December and target mid-week departures (Tuesdays and Wednesdays). Set fare alerts and compare both nonstop and one-stop itineraries—sometimes a red-eye or connecting flight can be significantly cheaper. Consider nearby departure times from alternative Las Vegas terminals (taxis/ride-shares from the Strip) and book 4–8 weeks in advance for holiday routes. CTA: Use fare alerts now to lock in December savings.