Best Flights starting from $830
Economy
Paris (Any)
Thu, Jul 2
One-way
Ontario (ONT)
—
Other Destinations
Paris (Any) to Warsaw (Any) in July from $135
From $135
Paris (Any) to Miami (MIA) in July from $454
From $454
Paris (Any) to Los Angeles (Any) in July from $497
From $497
Paris (Any) to Burbank (BUR) in July from $829
From $829
Paris (Any) to Santa Ana (SNA) in July from $890
From $890
Paris (Any) to Santiago (SCL) in August from $1,104
From $1,104
Flights from Other Cities
Little Rock (LIT) to Ontario (ONT) in July from $427
From $427
Cleveland (Any) to Ontario (ONT) in September from $148
From $148
Eugene (EUG) to Ontario (ONT) in September from $299
From $299
Billings (BIL) to Ontario (ONT) in September from $531
From $531
Des Moines (DSM) to Ontario (ONT) in October from $130
From $130
Atlanta (ATL) to Ontario (ONT) in October from $151
From $151
✈️ Flight Guide: Paris (Any) → Ontario (ONT)
Complete travel information for your July journey
Departing from Paris (Any) FAQs
Low-cost airlines like Spirit, Frontier and Allegiant often list the lowest base fares out of Ontario International Airport (ONT), while Southwest and Volaris sometimes compete with promotional fares. Legacy carriers such as American, Delta and United serve ONT too; compare baggage and seat fees to find the true cheapest economy fare. Use flight-comparison tools and set fare alerts to catch limited-time deals.
Typically January through mid-February and late September through November yield the lowest economy fares from Ontario International Airport (ONT) due to lower leisure demand. Holiday periods in December and peak summer (June–August) generally command higher prices. For the best savings, book 3–8 weeks in advance for domestic economy routes and 2–4 months for international economy travel.
For last-minute March travel from Ontario International Airport (ONT), check low-cost carriers' standby fares and flash sales, monitor Google Flights and Skyscanner for instant price drops, and be flexible with departure times and nearby airports. Consider mid-week departures and flights in off-peak hours (late evening or very early morning) to secure lower prices.
Ontario International Airport (ONT) offers frequent economy routes and connecting options to Las Vegas, Phoenix, San Diego, San Francisco, Seattle, Denver and Mexico City. Many travelers also use ONT as an affordable gateway to Los Angeles attractions, Palm Springs, and the Inland Empire. Compare direct routes and one-stop options when searching for cheapest economy fares.
For economy domestic departures from Ontario International Airport (ONT), plan to arrive approximately 90 minutes before departure during normal hours and 2 hours during peak travel days or holidays. If you need to check bags or are traveling internationally, allow extra time for security and ticketing lines. Use mobile boarding passes and online check-in to speed up the process.
In April, shuttle services and regional buses remain cost-effective ways to reach Ontario International Airport (ONT) from Los Angeles, San Bernardino and Riverside. Metrolink, local buses, and private airport shuttles often provide cheaper alternatives to rideshares, especially if you book early or use local transit passes. Check schedules and reserve shuttles ahead of busy holiday weekends.
Arriving at Ontario (ONT) FAQs
A 'Cheapest Economy Fare (ECO)' generally includes a basic seat and one small carry-on or personal item, with baggage, seat selection and onboard extras sold separately. Arrival services like airport transfers or luggage delivery usually cost extra. Always read fare rules for change fees, baggage allowance and refundability before booking.
For May arrivals, book shared shuttles, regional buses or rideshares in advance to secure lower rates; many airports also offer discounted transit passes. Compare taxi flat rates with fixed-route shuttles to nearby cities and reserve transfer services early during event weekends. Using public transit or pre-booked shuttle coupons can cut arrival costs substantially.
Cheapest economy arrival options often land in late evening or very early morning when demand is lower, though this varies by route and carrier. Midday arrivals can be cheaper on some routes if airlines schedule lower-demand flights then. Use flexible arrival time filters to find the lowest fares and weigh hotel or transfer costs for odd-hour arrivals.
A cheapest economy arrival may land at a hub or secondary airport with ground connections to major cities like Los Angeles, San Diego, Las Vegas, Phoenix, San Francisco, Seattle, Denver or Mexico City. Evaluate total door-to-door cost versus ticket price: sometimes arriving at a nearby secondary airport plus a short shuttle can be the most economical choice.
In December, cheapest economy fares often have strict change and cancellation policies and limited or no refunds, so confirm baggage allowances and change fees before you book. Peak holiday travel increases the cost of add-ons like seat assignments and checked bags, so calculate total trip cost including these extras. Consider travel insurance or flexible fare upgrades if your plans may change.
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Events & Festivals — Plan Around Cheap Economy Fares from ONT
Major events and festivals near Ontario International Airport (ONT) and in commonly linked destinations can drive up economy fares. Examples: Coachella (Indio/Palm Springs region) in April often increases fares and transfers; LA Marathon in March can impact travel into the Greater Los Angeles area; Holiday weekends (Memorial Day, Fourth of July, Thanksgiving, Christmas/New Year) raise prices across all airports. Music festivals, sports championships and trade shows in Las Vegas, Phoenix and San Francisco can also affect cheapest economy availability. Plan around these dates or book well in advance to avoid premium pricing.
Best Time to Fly — Cheapest Economy Strategies for Ontario International Airport (ONT)
The best time to fly cheaply from Ontario International Airport (ONT) is during shoulder seasons (September–November and January–February), when demand drops and carriers lower economy fares. Book domestic economy seats 3–6 weeks in advance for best prices and international economy 2–4 months ahead. Avoid peak summer months (June–August) and major holidays unless you book far in advance. Use fare comparison and prediction tools, and set alerts to capture flash sales and price dips.
Tips
- Book 3–8 weeks ahead for domestic economy; 2–4 months for international.
- Target shoulder months for lower prices and milder travel conditions.
- Be flexible with dates and airports to capture the cheapest fares.
Direct vs Connecting Flights — Ontario International Airport (ONT) Economy Tradeoffs
Direct flights from Ontario International Airport (ONT) save time and reduce the risk of missed connections, but connecting itineraries often yield cheaper economy fares—especially when combining low-cost carriers or routing through hubs like Phoenix (PHX) and Las Vegas (LAS). If price is the primary concern, a one-stop or two-stop itinerary can significantly lower the ticket cost; however, factor in layover durations, potential overnight stays, and baggage transfer risks. For the best balance, book connections with at least 90–120 minutes for domestic transfers and 2+ hours for international ones, or purchase a single-ticket itinerary that includes protected connections.
Airline Comparison for Cheapest Economy — ONT Options & Tips
Low-cost carriers (Spirit, Frontier, Allegiant) generally offer the cheapest base economy fares from Ontario International Airport (ONT), but add-on fees for baggage, seat selection and changes can increase the final price. Southwest often provides competitive economy fares with two free checked bags, which can be cheaper overall for travelers with luggage. Legacy carriers (American, Delta, United, Alaska) typically include more flexible policies and tighter schedules at a higher base fare. Compare total trip cost (fare + baggage + seat fees) and on-time performance to select the best airline for your needs.
Seasonal Travel Tips — Save on Cheapest Economy Fares from ONT
Winter (Dec–Feb): Book early for holiday travel; January and February are best for the lowest economy fares. Pack layers and confirm limited winter transit schedules. Spring (Mar–May): Use shoulder-season deals in early spring but beware spring-break surges; search for mid-week flights and last-minute sales. Summer (Jun–Aug): Peak season for fares—reserve 6–8 weeks ahead and consider secondary airports to save. Fall (Sep–Nov): One of the best seasons for cheapest economy fares—September and October often deliver the most consistent discounts. Throughout the year, combine flexible dates, low-cost carriers and fare alerts to find the best deals.
Flight Times & Schedules — Ontario International Airport (ONT) to Major Hubs
Typical flight durations from Ontario International Airport (ONT) in economy class to popular destinations are: Las Vegas (LAS) ~1 hour 10 minutes, Phoenix (PHX) ~1 hour 20 minutes, San Diego (SAN) ~40–50 minutes, San Francisco (SFO) ~1 hour 25 minutes, Seattle (SEA) ~2 hours 40 minutes, Denver (DEN) ~2 hours 30 minutes and Mexico City (MEX) ~3 hours 30 minutes. Many carriers operate multiple daily frequencies to these hubs, with peak departures in early morning and late afternoon. For cheapest economy seats, consider off-peak departure times (late evening or midweek midday) when low demand often lowers fares.
Cheap Flights Guide — Ontario International Airport (ONT) & Cheapest Economy (ECO)
To find cheap flights from Ontario International Airport (ONT) and the cheapest economy options, employ flexible-date searches, set price alerts, and compare low-cost carriers versus legacy carriers. Use nearby airports (Los Angeles LAX, John Wayne SNA) as comparison points only if ground transfer costs don't erase savings. Price-watch tools, fare calendars, and mid-week travel offer consistent savings; book early for summer and holiday travel and be ready to purchase when a flash sale appears. CTA: Search cheap flights from Ontario International Airport (ONT) now and enable fare alerts.
Tips
- Use flexible-date +/- 3 days to spot cheaper fares.
- Set multiple fare alerts on Google Flights and Skyscanner.
- Factor baggage and seat fees into the total price before selecting the cheapest economy fare.
- Compare arrival/departure times and secondary airports for better deals.