Best Flights starting from $340
from$340economy
Philadelphia (Any)
Tue, Jun 30
Roundtrip
Ontario (ONT)
Wed, Jul 8
from$487economy
Philadelphia (Any)
Thu, Jun 25
Roundtrip
Ontario (ONT)
Fri, Jul 3
from$487economy
Philadelphia (Any)
Sun, Jun 28
Roundtrip
Ontario (ONT)
Mon, Jul 6
from$499economy
Philadelphia (Any)
Wed, Jun 24
Roundtrip
Ontario (ONT)
Thu, Jul 2
from$518economy
Philadelphia (Any)
Fri, Jun 26
Roundtrip
Ontario (ONT)
Sat, Jul 4
from$533economy
Philadelphia (Any)
Sat, Jun 27
Roundtrip
Ontario (ONT)
Sun, Jul 5
Fields updated — click View Prices to search ↑
Other Destinations
Philadelphia (Any) to Miami (MIA) in June from $128
From $128
Philadelphia (Any) to New Orleans (MSY) in June from $179
From $179
Philadelphia (Any) to Miami (Any) in June from $217
From $217
Philadelphia (Any) to Panama City (PTY) in June from $532
From $532
Philadelphia (Any) to Bordeaux (BOD) in June from $576
From $576
Philadelphia (Any) to Belize City (BZE) in June from $595
From $595
Flights from Other Cities
Cleveland (CLE) to Ontario (ONT) in June from $219
From $219
Orlando (MCO) to Ontario (ONT) in June from $247
From $247
Vancouver (Any) to Ontario (ONT) in June from $387
From $387
Austin (AUS) to Ontario (ONT) in June from $466
From $466
Paris (Any) to Ontario (ONT) in June from $686
From $686
Denver (Any) to Ontario (ONT) in July from $240
From $240
✈️ Flight Guide: Philadelphia (Any) → Ontario (ONT)
Complete travel information for your June journey
Departing from Philadelphia (Any) FAQs
Ontario International Airport (ONT) is served by a mix of legacy carriers and low-cost airlines, including major U.S. carriers and budget operators that often publish cheap economy fares. For the lowest economy prices, check low-cost carriers and nearby hub connections, compare flexible dates, and sign up for fare alerts to catch flash sales. Use fare comparison tools and set price alerts to find the cheapest economy routes from ONT.
For domestic economy travel from Ontario International Airport (ONT), arrive at least 90 minutes before departure to allow time for check-in, security, and possible traffic around the airport. During peak holiday months like December, plan for 2–2.5 hours to avoid long TSA lines and ensure time for parking shuttles. If you need special assistance or are traveling with oversized baggage, add extra time.
Yes, Ontario International Airport (ONT) offers direct economy routes to major West Coast cities such as Los Angeles, San Diego, San Francisco, Las Vegas, and Phoenix, with seasonal and year-round service depending on airline schedules. For the cheapest economy fares, watch for off-peak weekday flights and red-eye options. Check airline route maps and ONT flight schedules for current direct departures.
Ontario International Airport (ONT) provides multiple economical ground transport options including shared shuttle services, public transit connections, regional buses, rideshares, and airport shuttles to nearby cities like Los Angeles, San Bernardino, and Riverside. For the cheapest transfers, use public transit or shared shuttles and book rideshares in advance to avoid dynamic surge pricing. Many budget travelers combine off-site parking with shuttle services to save on costs.
December holiday demand typically increases economy fares at Ontario International Airport (ONT), especially for routes serving family and leisure destinations; fares may spike 2–4 weeks before Christmas and New Year. To secure lower economy prices in December, book early, be flexible with dates, and consider midweek departures. Sign up for airline newsletters and price-drop alerts for last-minute deals but expect limited availability during peak holiday windows.
July can offer occasional discounted economy seats on international and connecting routes from Ontario International Airport (ONT) due to mid-summer promotions, though peak summer travel often keeps prices higher on popular family routes. For the cheapest economy international fares in July, use flexible date searches, target midweek departures, and consider connecting itineraries through major hubs. Monitor fare calendars and consider nearby airports if prices are inflated.
Arriving at Ontario (ONT) FAQs
Economy Class - Cheapest Fare (ECON) typically refers to the most restrictive economy ticket with limited or no free checked baggage, seat selection for a fee, and minimal change/refund flexibility. Always check the specific airline's fare rules before booking since add-on fees for baggage and seat selection can offset initial savings. For the best value, compare total trip cost including baggage and seat fees.
Most cheapest economy fares (ECON) are non-refundable and have restrictive change policies that may include high rebooking fees or fare differences. Some airlines offer flexible or refundable economy add-ons for an additional fee. Before purchase, review the fare conditions and consider travel insurance if you need flexibility.
To find the cheapest economy fares (ECON) from Ontario International Airport (ONT), use fare comparison engines, set price alerts, search flexible dates, and check budget airlines directly for flash sales. Also consider nearby major destinations accessed from ONT such as Los Angeles, San Diego, Las Vegas, and Phoenix to identify alternative routing that may reduce cost. Booking 3–8 weeks ahead for domestic routes often yields the best economy savings.
Usually, cheapest economy fares (ECON) do not include seat selection or priority boarding; these services are offered as paid add-ons. If seat choice or boarding priority is important, compare the total cost of an upgraded economy fare versus add-on fees. Many airlines allow free seat selection at check-in or block seats but charge for advanced assignments.
In December, cheapest economy fares (ECON) are scarce around the holidays; to find lower prices, book months in advance, be flexible with dates (travel midweek or early December), and consider flying into or out of nearby airports. Use fare alerts and search for connecting itineraries from Ontario International Airport (ONT) to nearby hubs to uncover lower-cost routes.
Yes, shoulder seasons such as September often produce deals on cheapest economy fares (ECON) because leisure demand softens and business travel patterns moderate. Travelers departing from Ontario International Airport (ONT) can find lower economy fares to major destinations and regional hubs; use flexible-date searches for best results.
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Events & Festivals Affecting Fares for Ontario International Airport (ONT) — Plan Economy (ECON) Travel
Events and festivals can dramatically increase ECON fares departing Ontario International Airport (ONT). Major draws include sports events in Los Angeles, Comic-Con in San Diego, music festivals, and conventions in nearby Los Angeles and Anaheim; these events tend to push up fares and hotel rates. For lower economy prices, avoid peak event dates, travel midweek, or book months in advance. CTA: Check event calendars near Ontario International Airport (ONT) and book economy fares early to avoid price surges.
Best Time to Fly Cheap from Ontario International Airport (ONT) to Economy Class (ECON)
The best time to fly cheap from Ontario International Airport (ONT) to Economy Class - Cheapest Fare (ECON) is typically during shoulder seasons (September, October, and January) and midweek when leisure demand is lower. Early-morning and red-eye flights often have lower economy fares, as do flexible-date bookings made 3–8 weeks in advance for domestic routes. Use fare comparison tools and flexible-date searches to identify the cheapest days and times for your route. CTA: Check fare calendars from Ontario International Airport (ONT) to find the best economy deals.
Direct vs Connecting Flights from Ontario International Airport (ONT): Economy (ECON) Pros & Cons
Direct flights from Ontario International Airport (ONT) are faster and more convenient but often cost more in economy class. Connecting itineraries can substantially lower ECON fares, especially on transcontinental or international routes, but add time and potential transfer risk. For budget travelers, a one-stop connection through a major hub often yields the cheapest economy seats—compare total trip time and out-of-pocket costs (baggage, meals, and transfers) before choosing. CTA: Compare direct and connecting economy options from Ontario International Airport (ONT) to find the cheapest solution for your schedule.
Airline Comparison for Ontario International Airport (ONT) — Best Economy (ECON) Deals
When comparing airlines at Ontario International Airport (ONT) for cheapest economy fares (ECON), examine base fare, baggage fees, seat selection charges, and change policies. Low-cost carriers often offer the lowest headline prices but charge for essentials that can increase the total. Legacy carriers may offer more inclusive economy bundles for a slightly higher price. Use total price comparisons and consider loyalty benefits if you travel frequently. CTA: Compare carrier prices and fees from Ontario International Airport (ONT) to find the best economy-class deal.
Seasonal Travel Tips for Ontario International Airport (ONT) — Saving on Economy (ECON) Fares
During peak seasons (summer and holiday periods), book economy (ECON) fares from Ontario International Airport (ONT) several months in advance and consider alternate airports to reduce cost. In shoulder seasons (September–October, January), use flexible dates and midweek travel to secure the cheapest fares. For winter travel, watch for airline sales in January and February; in spring, avoid spring-break spikes by targeting early or late-month travel. Always factor in baggage and seat fees when comparing ECON prices to ensure true savings. CTA: Use fare calendars and subscribe to alerts for cheap economy deals from Ontario International Airport (ONT).
Flight Times & Schedules: Ontario International Airport (ONT) to Economy Class (ECON)
Typical economy flights from Ontario International Airport (ONT) to major West Coast destinations like Los Angeles and San Diego are short (30–60 minutes), while cross-country economy flights to hubs such as Chicago or New York range from 4–6 hours depending on routing. Cheapest economy fares often appear on red-eye or early-morning flights and midweek departures when demand is lower. Check airline timetables and set alerts for schedule changes to capture the best prices. CTA: Review current schedules from Ontario International Airport (ONT) and compare economy fares for your preferred times.
Cheap Flights Guide: Ontario International Airport (ONT) - Economy Class (ECON) Strategies
To secure cheap economy flights from Ontario International Airport (ONT) to Economy Class - Cheapest Fare (ECON), search flexible dates, compare nearby airports (including Los Angeles and San Bernardino), use fare calendars, and sign up for fare alerts. Consider connecting itineraries and midweek departures to lower costs. Use OTA price comparison, check baggage and seat fees, and book when a clear dip appears in the fare calendar. CTA: Compare cheap economy fares from Ontario International Airport (ONT) now and subscribe for fare alerts.