Best Flights starting from $160
from$160economy
Chicago (ORD)
Sun, Apr 19
Roundtrip
Ontario (ONT)
Mon, Apr 27
from$160economy
Chicago (ORD)
Sun, Apr 19
Roundtrip
Ontario (ONT)
Tue, Apr 28
from$160economy
Chicago (ORD)
Mon, Apr 20
Roundtrip
Ontario (ONT)
Wed, Apr 29
from$160economy
Chicago (ORD)
Wed, Apr 22
Roundtrip
Ontario (ONT)
Wed, Apr 29
from$160economy
Chicago (ORD)
Thu, Apr 23
Roundtrip
Ontario (ONT)
Sat, May 2
from$180economy
Chicago (ORD)
Mon, Apr 13
Roundtrip
Ontario (ONT)
Mon, Apr 20
from$180economy
Chicago (ORD)
Tue, Apr 14
Roundtrip
Ontario (ONT)
Mon, Apr 20
from$180economy
Chicago (ORD)
Sat, Apr 18
Roundtrip
Ontario (ONT)
Mon, Apr 27
from$180economy
Chicago (ORD)
Tue, Apr 21
Roundtrip
Ontario (ONT)
Mon, Apr 27
from$185economy
Chicago (ORD)
Thu, Apr 16
Roundtrip
Ontario (ONT)
Wed, Apr 22
from$210economy
Chicago (ORD)
Wed, Apr 8
Roundtrip
Ontario (ONT)
Tue, Apr 14
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Other Options for This Route
Other Destinations
Chicago (ORD) to New York (LGA) in April from $36
From $36
Chicago (ORD) to Newark (EWR) in April from $49
From $49
Chicago (ORD) to Philadelphia (PHL) in April from $54
From $54
Chicago (ORD) to Atlanta (Any) in April from $56
From $56
Chicago (ORD) to Phoenix (PHX) in April from $56
From $56
Chicago (ORD) to Phoenix (Any) in April from $56
From $56
Flights from Other Cities
San Francisco (SFO) to Ontario (ONT) in April from $59
From $59
Denver (Any) to Ontario (ONT) in April from $69
From $69
Portland (PDX) to Ontario (ONT) in April from $89
From $89
San Francisco (SFO) to Ontario (ONT) in April from $133
From $133
San Antonio (SAT) to Ontario (ONT) in April from $135
From $135
Phoenix (PHX) to Ontario (ONT) in April from $137
From $137
✈️ Flight Guide: Chicago (ORD) → Ontario (ONT)
Complete travel information for your April journey
Departing from Chicago (ORD) FAQs
Ontario International Airport (ONT) is served by a mix of low-cost and legacy carriers offering competitive economy fares, including Southwest Airlines, American Airlines, United Airlines, Volaris and Alaska Airlines on select routes. For the cheapest economy fares, search early, compare round-trip vs one-way prices, and sign up for fare alerts to catch sales. Nearby destinations commonly served from ONT include Los Angeles, Anaheim, Riverside, San Bernardino, Las Vegas, Phoenix, and Denver.
For domestic economy travel from Ontario International Airport (ONT), arrive 90 minutes to 2 hours before departure to allow time for check-in, security screening, and possible traffic around the Inland Empire. During busy months like December and March (spring break), plan extra time—up to 2.5 hours—to account for longer security lines and parking. Use Ontari o's off-site parking or ride-share drop-offs to save time and reduce stress.
June often features early-summer sales for economy travelers flying from Ontario International Airport (ONT) to weekend destinations like Las Vegas and Phoenix, as airlines release limited-time discounts. Look for weekday departures, mid-week stays, and early-morning flights to secure the cheapest economy fares; sign up for carrier newsletters and set fare alerts for June travel windows. Consider flexibility on dates and nearby airports like Los Angeles to compare savings.
Baggage allowances for economy tickets from Ontario International Airport (ONT) depend on the airline and fare class—basic economy often includes only a personal item, while standard economy usually includes one carry-on and one personal item. Checked bag fees vary; major carriers and low-cost airlines post fees online, and purchasing baggage online before arriving at ONT typically lowers the cost. Always check your carrier's baggage policy in your confirmation email before heading to ONT to avoid surprises.
Ontario International Airport (ONT) offers ride-share zones, taxis, shuttle services, on-site car rental counters, and regional public transit connecting to Los Angeles, Anaheim, and Riverside. Economy-conscious travelers can use shared shuttles or public buses to reduce costs, and many off-site economy parking lots provide shuttle service to the terminal. Check ONT's official website for up-to-date transit schedules and preferred ride-share pickup points.
December is a peak travel month at Ontario International Airport (ONT) due to holiday travel and regional events, so book economy seats as early as possible and consider flying on the holiday itself for lower fares. Expect longer security waits and higher demand for economy-class seating; check-in online, pack light to avoid baggage fees, and arrive at least two hours early. Monitor weather advisories and airline notifications for any schedule changes that could affect connections to major nearby cities like Los Angeles and San Diego.
Arriving at Ontario (ONT) FAQs
'Cheapest Economy Fare (ECONOMY)' typically refers to the lowest-priced economy-class ticket available for a given route, offering basic amenities and restrictive change/cancellation policies. When arriving on a cheapest economy ticket from Ontario International Airport (ONT), expect limited baggage allowance on basic fares and fewer perks; upgrade options and bundled bundles can be purchased for added flexibility. Always check the fare rules displayed during booking for details specific to your carrier.
Travelers arriving under cheapest economy fares connected to Ontario International Airport (ONT) frequently access nearby major cities like Los Angeles, Anaheim (Disneyland area), San Diego, Riverside, San Bernardino, Las Vegas and Phoenix. These hubs offer onward ground transport options, including shuttles, rental cars, and regional buses that help economy travelers reach their final destination cost-effectively.
December arrivals on cheapest economy fares require planning for holiday crowds and potentially longer customs or ground-transport waits, even at regional airports like Ontario International Airport (ONT). Schedule extra time for baggage claim and consider pre-booking airport shuttles or ride-share pickups; snow and weather delays on connecting flights from other regions may also affect arrival times. Keep airline contact info handy to rebook if needed and monitor airport advisories for updates.
Priority services such as expedited immigration, security or lounge access are generally not included with the cheapest economy fares arriving at Ontario International Airport (ONT), but can be purchased or accessed with elite status or paid upgrades. Some airlines sell priority boarding and security-lane access separately; check your carrier’s add-ons before arrival at ONT. Consider credit card benefits or day passes for lounges if you need extra comfort after arrival.
On arrival at Ontario International Airport (ONT), cheapest economy fare passengers can use cost-effective ground transport like shared shuttles, public buses, ride-shares, and economy car-rental options. Off-site parking shuttles and regional transit can reduce costs if you’re heading to nearby cities such as Anaheim or Riverside. Compare ride-share versus shuttle prices and check real-time transit apps when you land.
Refund and change policies for cheapest economy arrival tickets vary by airline and fare rules; many basic economy tickets are non-refundable and charge fees for changes. Contact your carrier directly or check the confirmation email for specific ONT arrival ticket policies and consider travel insurance for added protection. If disruptions occur on arrival at Ontario International Airport (ONT), airline customer service desks at the terminal can assist with rebooking options.
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Events & Festivals Impacting Flights at Ontario International Airport (ONT)
Major events and festivals that affect travel at Ontario International Airport (ONT) include Coachella (April, Indio), Stagecoach (April), the Rose Parade (January, nearby Los Angeles), San Diego Comic-Con (July, increased regional air traffic), and Los Angeles Marathon (March). These events drive demand and influence cheap economy fares—book in advance, arrive early, and compare alternative airports like Los Angeles (LAX) or Palm Springs (PSP) for better pricing. LSI keywords to include: 'festival flights', 'event travel from ONT', 'Coachella flight tips'. CTA: Check event dates and book cheap economy flights from Ontario International Airport (ONT) early to avoid fare surges.
Best Time to Fly Cheap Economy from Ontario International Airport (ONT)
The best time to fly cheaply in economy from Ontario International Airport (ONT) is during shoulder seasons (late January–March, September–early November) when leisure demand decreases. Midweek departures (Tuesdays, Wednesdays) and early-morning or red-eye flights typically offer the lowest fares. Book 1–3 months in advance for domestic economy routes and 2–5 months for peak holiday travel to secure the best pricing. CTA: Use flexible-date search tools to identify cheapest economy windows from Ontario International Airport (ONT) and save on your next trip.
Direct vs Connecting Flights from Ontario International Airport (ONT) — Economy Comparison
Choosing between direct and connecting flights from Ontario International Airport (ONT) affects price, travel time, and convenience. Direct/nonstop flights are more convenient and reduce connection risk but often cost more in economy; connecting itineraries (via hubs like Phoenix, Las Vegas, or Denver) can lower price significantly at the expense of longer travel time. For cheapest economy fares, consider one-stop routes, flexible connections, and longer layovers that avoid peak connection times. CTA: Compare direct vs connecting fares from Ontario International Airport (ONT) to find the optimal balance between price and travel time.
Airline Comparison for Economy Flights from Ontario International Airport (ONT)
Compare airlines serving Ontario International Airport (ONT) on economy price, baggage policy, route network and onboard amenities. Southwest Airlines often offers generous baggage policies for economy travelers and competitive fares to Las Vegas and Phoenix; American Airlines and United Airlines provide broader connections to hubs like Dallas and Denver; Volaris and Aeromexico serve international economy routes to Mexico at lower price points for bargain-conscious travelers. Consider primary keywords like 'cheap economy airlines ONT' and LSI terms such as 'basic economy vs standard economy' and 'baggage-inclusive fares' when evaluating options. CTA: Compare carrier economy policies for flights from Ontario International Airport (ONT) and book the best value fare today.
Seasonal Travel Tips for Economy Travelers from Ontario International Airport (ONT)
Seasonal tips for cheapest economy travel from Ontario International Airport (ONT): In winter (Dec–Feb) book early and expect holiday surcharges; spring (Mar–May) look for shoulder-season deals and watch spring-break demand spikes; summer (Jun–Aug) is peak season—use early bookings and alternate airports; fall (Sep–Nov) offers the best bargains for economy fares. Pack layers for Southern California microclimates, carry essential documents digitally for quicker arrival processing, and use mobile boarding passes to speed security. CTA: Follow these seasonal strategies to find the cheapest economy flights from Ontario International Airport (ONT) and sign up for seasonal fare alerts.
Flight Times & Schedules from Ontario International Airport (ONT)
Typical flight durations from Ontario International Airport (ONT) to common economy destinations: Las Vegas (approx. 1 hour), Phoenix (1h 15m), Denver (2h 15m), Seattle (2h 45m), Chicago (4h 10m), Mexico City (3h 45m). Schedules vary by carrier and season; low-cost carriers often offer multiple daily flights to Las Vegas and Phoenix while legacy carriers provide early-morning and evening peak services. For the best economy fares and optimal schedules, search flexible dates and filter by nonstop or one-stop depending on your tolerance for connections. CTA: Check live ONT flight schedules and book the cheapest economy time that fits your itinerary.
Cheap Economy Flights from Ontario International Airport (ONT) — Deals & Tips
Cheap economy flights from Ontario International Airport (ONT) are found by combining flexible date searches, midweek travel, early booking, and comparing nearby airports such as Los Angeles (LAX) and San Diego (SAN). Primary keywords to target include 'cheap economy flights ONT', 'Ontario International Airport deals', and 'budget flights from ONT'. Use fare alerts, set price caps, and consider budget carriers and connecting itineraries to lower the total fare. CTA: Compare cheap economy deals from Ontario International Airport (ONT) now and sign up for price alerts to lock in the lowest fares.