Key events and festivals that affect route demand and pricing from Ontario International Airport (ONT) include: Coachella (April) in Indio which raises demand for economy fares to nearby hubs; Los Angeles Marathon (March) that impacts inbound flights to the Greater LA region; San Diego Comic-Con (July) influencing San Diego route pricing; Las Vegas major conventions (year-round, peaks in spring/fall) driving fares between ONT and LAS; Mexico City cultural festivals (various months) affecting cross-border demand. For cheapest economy fares, avoid peak event dates or book well in advance. Use search phrases like "cheap flights ONT Coachella" or "economy fares ONT Comic-Con" to plan ahead.
The best time to fly from Ontario International Airport (ONT) for cheapest economy fares is typically during shoulder seasons (late January–March and September–October) and midweek (Tuesday–Thursday) departures. Early-morning and late-night flights are often less expensive, and booking 3–8 weeks ahead for domestic economy and 2–4 months for international routes tends to yield better bargains. Use search modifiers like "best time to fly ONT economy" and set fare alerts to capture transient deals. Consider nearby hubs such as Los Angeles (LAX) or San Diego (SAN) for additional route options and potentially lower economy fares.
Direct (nonstop) flights from Ontario International Airport (ONT) offer convenience and often faster travel times but can be pricier in economy class compared to connecting itineraries. Connecting flights can unlock cheaper economy fares by leveraging hub competition (e.g., routing through Los Angeles, Phoenix, or Denver), although they add travel time and transfer risk. For cheapest economy travel, compare total door-to-door time and full trip cost including baggage fees; search "ONT nonstop economy vs connecting" to evaluate options.
Major carriers and their economy features from Ontario International Airport (ONT) include Southwest Airlines (free two checked bags and free changes on many fares), Alaska Airlines (strong West Coast network, complimentary snacks in main cabin on select routes), Spirit Airlines (ultra-low-cost with many add-on fees), Frontier (low base fares with optional add-ons), American Airlines and United Airlines (wider route networks and loyalty benefits). For cheapest economy fares, low-cost carriers like Spirit and Frontier often offer the lowest base price but add fees; Southwest and Alaska may deliver better value after baggage and change policies are factored in. Use keyword variations such as "Southwest ONT economy comparison", "Spirit cheap economy ONT", and "best economy airlines from Ontario International Airport (ONT)" when searching.
Seasonal travel tips for securing the cheapest economy fares from Ontario International Airport (ONT): Winter (Jan–Feb) — watch post-holiday sales and travel midweek for lower prices; Spring (Mar–May) — avoid peak spring-break weeks but target early spring for deals; Summer (Jun–Aug) — book months ahead, prefer midweek or early-morning flights; Fall (Sep–Nov) — often the best season for cheap economy fares with flexible dates and midweek travel yielding savings. Always compare nearby hubs such as Los Angeles (LAX) and San Diego (SAN) and include LSI keywords like "shoulder-season flights ONT", "economy class packing ONT trips", and "ONT seasonal airfare tips" in searches. CTA: Check flexible-date calendars and sign up for airline deal alerts to capture seasonal economy discounts.
Typical flight times and schedules from Ontario International Airport (ONT) to common nearby major cities are: Los Angeles (LAX) — 25 to 45 minutes (short shuttle or regional flights); San Diego (SAN) — about 45 minutes; Las Vegas (LAS) — roughly 1 hour 10 minutes nonstop; Phoenix (PHX) — about 1 hour 20 minutes; San Francisco (SFO) — about 1 hour 25 minutes; Seattle (SEA) — around 2 hours 30 minutes; Denver (DEN) — about 2 hours 20 minutes; Chicago (ORD) — approx. 4 hours; Mexico City (MEX) — typically 3 to 4 hours with many itineraries requiring connections. Schedules vary by season and airline; for cheapest economy fares, search off-peak times like red-eyes and midweek flights, and compare nonstop vs. one-stop schedules. Use phrases like "ONT flight times to Las Vegas" or "ONT schedule economy flights" when researching.
Cheap flights from Ontario International Airport (ONT) in economy class can be found year-round by using flexible-date searches, signing up for fare alerts, comparing budget carriers, and considering nearby hubs like Los Angeles (LAX), San Diego (SAN), Las Vegas (LAS), Phoenix (PHX), San Francisco (SFO), and Mexico City. Use primary keywords such as "cheap flights from Ontario (ONT)" and secondary keywords like "ONT economy deals" and LSI phrases like "budget airfare ONT", "low-cost carriers from ONT", and "ONT flight deals". CTA: Sign up for fare alerts and search flexible dates today to find the cheapest economy flights from Ontario International Airport (ONT).
Starting from $235
Book your economy class flight from San Antonio (SAT) to Ontario (ONT)and save money on your travel. Compare all flight options to find the best deal for your april trip.
Starting from $315
Book your economy class flight from San Antonio (SAT) to Ontario (ONT)and save money on your travel. Compare all flight options to find the best deal for your april trip.
Starting from $394
Book your economy class flight from San Antonio (SAT) to Ontario (ONT)and save money on your travel. Compare all flight options to find the best deal for your april trip.
Planning a trip from San Antonio (SAT) to Ontario (ONT) in april? SlickTrip helps you find the cheapest economy class flights with our comprehensive flight comparison tool. Whether you prefer direct flights for convenience or multi-stop flights for savings, we have options for every budget and schedule.