Best Flights starting from $137
from$137economy
Phoenix (PHX)
Mon, Apr 6
Roundtrip
Ontario (ONT)
Wed, Apr 8
from$137economy
Phoenix (PHX)
Tue, Apr 7
Roundtrip
Ontario (ONT)
Thu, Apr 9
from$139economy
Phoenix (PHX)
Wed, Apr 8
Roundtrip
Ontario (ONT)
Fri, Apr 10
from$145economy
Phoenix (PHX)
Sun, Apr 12
Roundtrip
Ontario (ONT)
Tue, Apr 14
from$157economy
Phoenix (PHX)
Thu, Apr 9
Roundtrip
Ontario (ONT)
Sat, Apr 11
from$157economy
Phoenix (PHX)
Sat, Apr 11
Roundtrip
Ontario (ONT)
Mon, Apr 13
from$166economy
Phoenix (PHX)
Fri, Apr 10
Roundtrip
Ontario (ONT)
Sun, Apr 12
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Other Destinations
Phoenix (PHX) to San Diego (SAN) in April from $46
From $46
Phoenix (PHX) to Santa Ana (SNA) in April from $79
From $79
Phoenix (PHX) to Cleveland (CLE) in April from $91
From $91
Phoenix (PHX) to Tampa (TPA) in April from $95
From $95
Phoenix (PHX) to Philadelphia (PHL) in April from $100
From $100
Phoenix (PHX) to Orlando (MCO) in April from $149
From $149
Flights from Other Cities
San Francisco (SFO) to Ontario (ONT) in April from $59
From $59
Portland (PDX) to Ontario (ONT) in April from $89
From $89
San Francisco (SFO) to Ontario (ONT) in April from $133
From $133
Dallas (DFW) to Ontario (ONT) in April from $177
From $177
Portland (PDX) to Ontario (ONT) in April from $177
From $177
Milwaukee (MKE) to Ontario (ONT) in April from $261
From $261
✈️ Flight Guide: Phoenix (PHX) → Ontario (ONT)
Complete travel information for your April journey
Departing from Phoenix (PHX) FAQs
To find the cheapest economy flights from Ontario International Airport (ONT), compare low-cost carriers, use flexible date search tools, and book 6–8 weeks in advance for domestic routes. Set price alerts on major OTAs and the airlines’ websites to capture flash sales, and consider weekday departures or red-eye flights for lower fares.
Ontario International Airport (ONT) typically sees peak travel in June–August and around late-December holidays, raising economy fares and reducing seat availability. If you want lower prices, target off-peak months like February or September and book early or look for mid-week departures.
Ontario International Airport (ONT) offers routes to major hubs and leisure cities including Los Angeles (metro access), San Francisco, Las Vegas, Phoenix, Portland, Seattle, and seasonal vacation spots like Cancun. Many travelers use ONT for easy access to Anaheim, Riverside, and San Bernardino for lower-cost flights than larger LA-area airports.
In April and May, ground transport to Ontario International Airport (ONT) includes rental cars, ride-shares, regional buses, Metrolink train connections, and taxis; traffic is typically lighter than summer peak months. For spring travel, book airport shuttles early for theme-park transfers (Anaheim) and confirm Metrolink schedules for commuter discounts.
Luggage and carry-on allowances depend on the airline and the specific economy fare class; basic economy often restricts carry-on or charges for checked baggage, while standard economy usually includes a carry-on and a personal item. Check your carrier’s baggage policy before departure from Ontario International Airport (ONT) to avoid surprise fees.
Yes, November (including Black Friday and Cyber Monday) often brings discounted economy fares from Ontario International Airport (ONT), especially on domestic and Mexico routes; sign up for airline newsletters and set fare alerts to capitalize on limited-time deals. Act quickly when sales appear, as the best fares sell out fast.
Arriving at Ontario (ONT) FAQs
Cheapest Economy Fare (ECONOMY) typically denotes the lowest-priced economy class ticket with the most restrictions: limited or no seat selection, potential baggage fees, and reduced refund/change flexibility. Expect basic onboard service; compare fare families and consider slight upgrades if you need carry-on or seat guarantees.
To find the cheapest economy arrival options for travel into the Los Angeles area, search flights that land at alternate airports and use flexible dates. Compare fares arriving at major access points like Los Angeles, Long Beach, and Ontario to find lower total travel costs and check for special deals to Anaheim and San Diego.
Often, taking public transit or ride-sharing from arrival airports like Cheapest Economy Fare (ECONOMY) designated hubs can be cheaper than long-term airport parking, especially if you compare Metrolink plus shuttle versus daily parking costs. Evaluate train links, airport shuttles, and shared-ride services for the best price on arrival.
Arrivals labeled Cheapest Economy Fare (ECONOMY) commonly lead travelers to major nearby cities like Los Angeles, Anaheim, San Diego, Las Vegas, and Phoenix. These destinations are frequently accessed even if you land at smaller regional airports, and low-cost carriers often connect to these hubs.
Yes, the cheapest economy fares sometimes exclude free checked baggage and may limit carry-on size or weight; baggage rules depend on the airline you booked with. Always verify the fare rules before arrival—paying for baggage online in advance is usually cheaper than paying at the airport.
For December arrivals on cheap economy tickets, allow extra time for longer security lines and potential delays, and confirm baggage inclusion to avoid airport fees. Book connecting ground transport in advance and monitor flight status closely to adapt to holiday surges and weather impacts.
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Events & Festivals Impacting Flights from Ontario International Airport (ONT)
Events and festivals significantly impact economy fares to and from Ontario International Airport (ONT). Major events in Los Angeles, Anaheim conventions, and Las Vegas shows can cause price spikes; always cross-check event calendars before booking. For example, Anaheim conventions and LA sporting events increase demand—plan and book transportation early during these dates. CTA: Check event calendars and book early to secure the cheapest economy seats and transfer options.
Best Time to Fly from Ontario International Airport (ONT) | Economy Fare Guide
The best time to fly in economy from Ontario International Airport (ONT) for low fares is generally late January–February and September, when demand is lowest. For holiday travel, book as early as possible; for summer travel, secure tickets 6–8 weeks in advance. Flying midweek (Tuesday–Thursday) and choosing off-peak hours (early morning or late evening) typically yields the cheapest economy fares. Use fare prediction tools and set alerts to identify when to buy.
Direct vs Connecting Flights from Ontario International Airport (ONT) | Economy Tradeoffs
Choosing direct versus connecting flights from Ontario International Airport (ONT) depends on your priorities: direct flights save time and reduce disruption risk but often cost more in economy; connecting flights can be significantly cheaper, especially when routed through major hubs. For budget-conscious travelers, one-stop itineraries through Los Angeles (LAX), Phoenix (PHX), or Las Vegas (LAS) often unlock lower fares. Balance total travel time, layover duration, and the potential for delays when selecting the cheaper economy option.
Airline Comparison for Ontario International Airport (ONT) | Economy Fares
Compare airlines serving Ontario International Airport (ONT) by fare families, baggage rules, and route networks to find the cheapest economy option that meets your needs. Low-cost carriers may offer lowest base fares but charge extras for baggage and seat selection, while legacy carriers often include more amenities in standard economy. For popular routes to Las Vegas, Phoenix, and San Francisco, compare total landed costs (fare + baggage + seat fees) across carriers to avoid surprise expenses. CTA: Use the airline comparison tool to calculate the true cost of each economy fare option.
Seasonal Travel Tips for Ontario International Airport (ONT) | Economy Savings
Seasonal travel tips for Ontario International Airport (ONT): travel in January–February and September for the lowest economy fares; expect higher prices June–August and mid-December. Winter storm disruptions are rare in Southern California but monitor weather for connecting flights to colder hubs. For holiday travel, pre-pay baggage and reserve transfers; for summer, allow extra time for security and parking. Use seasonal keywords like 'ONT summer cheap flights' or 'Ontario International Airport winter economy deals' when searching to surface optimized results. CTA: Plan seasonally and compare options now.
Flight Times & Schedules from Ontario International Airport (ONT) | Economy
Flight times and schedules from Ontario International Airport (ONT) vary by carrier and season. Many economy routes are shortest in duration to West Coast hubs (1–3 hours) while connections to central or eastern U.S. take longer with one stop. Check airline timetables for peak departure windows: early morning for business routes and late evening for red-eye options. For international and seasonal flights, consult monthly schedules and book based on the time-of-day that aligns with cheaper fares and lower demand.
Cheap Flights from Ontario International Airport (ONT) | Economy Deals & Tips
Finding cheap flights from Ontario International Airport (ONT) in economy requires combining flexible dates, alternate airport searches, and fare-alert monitoring. Prioritize midweek departures, consider red-eye flights, and compare low-cost carriers for short-haul trips to Las Vegas, Phoenix, and San Francisco. Use location modifiers like 'Ontario CA to Anaheim economy' or 'ONT cheap flights to Las Vegas' in search engines for optimized local results. CTA: Start a price comparison now and enable alerts to capture limited-time deals.