Best Flights starting from $300
from$300economy
Detroit (DTW)
Mon, Mar 30
Roundtrip
Ontario (ONT)
Tue, Apr 14
from$320economy
Detroit (DTW)
Tue, Mar 31
Roundtrip
Ontario (ONT)
Wed, Apr 15
from$340economy
Detroit (DTW)
Sun, Mar 29
Roundtrip
Ontario (ONT)
Mon, Apr 13
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Other Destinations
Detroit (DTW) to Newark (EWR) in March from $72
From $72
Detroit (DTW) to Houston (Any) in March from $72
From $72
Detroit (DTW) to Houston (IAH) in March from $78
From $78
Detroit (DTW) to Washington, D.C. (IAD) in March from $80
From $80
Detroit (DTW) to Dallas (DFW) in March from $82
From $82
Detroit (DTW) to Denver (DEN) in March from $83
From $83
Flights from Other Cities
Cleveland (CLE) to Ontario (ONT) in March from $106
From $106
San Antonio (SAT) to Ontario (ONT) in March from $164
From $164
Denver (Any) to Ontario (ONT) in March from $185
From $185
Salt Lake City (SLC) to Ontario (ONT) in March from $195
From $195
Oklahoma City (OKC) to Ontario (ONT) in March from $208
From $208
Tucson (TUS) to Ontario (ONT) in March from $243
From $243
✈️ Flight Guide: Detroit (DTW) → Ontario (ONT)
Complete travel information for your March journey
Departing from Detroit (DTW) FAQs
To find cheap flights from Ontario International Airport (ONT), use fare comparison tools like Google Flights, Skyscanner, and Kayak and set price alerts for your preferred routes. Book during off-peak days (Tuesdays/Wednesdays) and consider flexible dates or nearby alternative airports in the Los Angeles area and Riverside to lower costs. Sign up for airline newsletters and follow low-cost carriers that serve ONT for flash sales.
Ontario International Airport (ONT) is served by several low-cost carriers including Southwest Airlines, Allegiant Air, Spirit Airlines, and Frontier on select routes. These airlines often offer the cheapest economy fares but may charge extra for baggage and seat selection, so compare total price including fees before booking. Check airline baggage policies to avoid surprise charges.
Yes — Ontario International Airport (ONT) regularly offers nonstop budget flights to Las Vegas (LAS) and Phoenix (PHX), often provided by low-cost carriers and legacy airlines during peak travel windows. Nonstop routes can be economical when booked in advance or during promotional sales, but compare connecting options which sometimes drop prices further. Use fare calendars to spot the lowest nonstop fares for your travel month.
In November, major events like college football weekends, early holiday travel, and regional festivals can increase demand and push prices up from Ontario International Airport (ONT). For November travel, book at least 3–6 weeks in advance and monitor fare alerts; traveling midweek often yields lower fares. Consider nearby airports (Los Angeles International, John Wayne) if November dates are inflexible to find cheaper economy alternatives.
Ontario International Airport (ONT) offers ride-hailing pickup zones, taxi services, shared shuttles, rental cars, and public transit connections to San Bernardino and Riverside counties. For cheap travel, consider shared shuttles or public buses; booking rental cars in advance often yields lower rates. Check the ONT official website and local transit schedules for latest pickup points and fares.
Typically, January and February are among the cheapest months to fly from Ontario International Airport (ONT) for economy fares due to post-holiday demand dips and shoulder-season discounts. Late August and early September can also offer lower fares once peak summer travel winds down. Use flexible-date search tools and sign up for fare alerts to catch these seasonal low prices.
Arriving at Ontario (ONT) FAQs
Cheapest Economy Fare (CHEAPEST) refers to the lowest available fare class in economy offered on a given route, often with the most restrictive rules and limited flexibility. These fares typically exclude extras like checked baggage, seat selection, and changes, so always review the fare rules before purchase. Use filters on booking engines to compare total travel cost including fees.
To locate the cheapest economy fares to top destinations such as Los Angeles and San Diego, use flexible-date searches on multiple booking platforms and set fare alerts for price drops. Compare low-cost carriers and consider flying to alternate nearby airports, then use ground transport to reach your final destination. Booking 3–8 weeks in advance for domestic travel often yields the best economy savings.
Most cheapest economy fares do not include checked baggage or complimentary seat selection; these are typically add-on services for an extra fee. Carry-on allowances vary by airline, so verify the specific carrier's policy before booking. For full-price transparency, compare the 'total fare' including expected add-ons rather than base fare alone.
Cheapest economy fares are often most available during shoulder months such as September and January when demand is lower, resulting in more discounts and fare sales. In September specifically, business travel slows and summer tourism drops, creating opportunities for budget travelers to find lower prices. Use fare calendars and subscribe to alerts to capture these seasonal savings.
When targeting cheapest economy arrival options, travelers often consider major nearby cities such as Los Angeles, San Diego, Las Vegas, Phoenix, and San Francisco for onward travel. These hubs typically have more flight choices and competition, which helps drive down fares. Sometimes flying into a larger nearby city and taking ground transport is cheaper overall than direct flights to smaller airports.
For December and other holiday months, secure the cheapest economy fares by booking early (1–3 months ahead), traveling on off-peak days (avoid Dec 23–26 and New Year’s Eve), and being flexible with airports and times of day. Sign up for airline newsletters and fare alerts for brief sale windows, and consider midweek travel or red-eye flights to reduce costs. Also compare round-trip versus one-way pricing, as some carriers price these differently.
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Events & Festivals — How They Affect Cheapest Economy Fares from ONT
Local and regional events significantly influence airfare from Ontario International Airport (ONT). Major Southern California events like Coachella (April), Comic-Con in San Diego (July), and Thanksgiving/Christmas travel periods drive up fares. Nearby cities and top destinations to consider when planning around events include Los Angeles, San Diego, Las Vegas, and Phoenix. Use event calendars to avoid booking during high-demand weekends or book early if you must travel during these times.
Best Time to Fly from Ontario International Airport (ONT) — Cheapest Economy Tips
The best time to fly for cheapest economy fares from Ontario International Airport (ONT) is during shoulder seasons (September, January, February) and midweek (Tuesdays–Wednesdays). Off-peak hours such as late-night and early-morning flights often have lower prices. For holiday months, book 1–3 months in advance; for off-peak months, 2–6 weeks is usually sufficient. Primary keywords: best time to fly ONT, cheapest time to fly Ontario International. LSI terms: shoulder season travel, off-peak airfare, midweek flight savings.
Direct vs Connecting Flights — Save on Cheapest Economy from ONT
Choosing direct versus connecting flights depends on your priorities: nonstop flights reduce travel time and disruption but can be more expensive, while connecting itineraries often provide the cheapest economy fares. For ONT-origin travelers, common connecting hubs include Phoenix (PHX), Las Vegas (LAS), and Denver (DEN). If price is the primary goal, search for connecting routes with reasonable layovers (1–3 hours) that still minimize risk of missed connections. Use the 'sort by price' and 'multi-city' features to evaluate savings vs travel time.
Airline Comparison — Cheapest Economy Options from Ontario International Airport (ONT)
Compare airlines serving Ontario International Airport (ONT) to find the best balance of price and value for cheapest economy travel. Low-cost carriers like Spirit, Frontier, Allegiant, and Southwest often list the lowest base fares but charge for extras; legacy carriers (American, Delta, United) may offer better bundled value with seat selection and carry-on included on some fares. Use keywords: airline comparison ONT, low-cost vs legacy carriers. Consider baggage fees, change fees, and on-board amenities when evaluating the true cost of the cheapest economy fare.
Seasonal Travel Tips for Cheapest Economy Fares from Ontario International Airport (ONT)
Seasonal tips for cheapest economy travel from ONT: travel in shoulder seasons (September, January), avoid peak holiday windows, book midweek and early mornings for lower fares, and always factor in baggage and change fees to the total price. LSI keywords include shoulder season, holiday travel tips, packing for economy, and off-peak airfare strategies. For summer travel, book earlier; for winter travel, be flexible around holiday dates and consider alternative airports to secure cheaper economy fares.
Flight Time & Schedules — Ontario International Airport (ONT) Cheapest Economy Guide
Flight times and schedules from Ontario International Airport (ONT) vary by destination and carrier. Short-haul nonstop flights to nearby major cities typically range from 45 minutes to 1 hour; for example, ONT to Las Vegas (LAS) is about 1 hour, ONT to Phoenix (PHX) roughly 1 hour 20 minutes, and ONT to San Francisco (SFO) about 1 hour 25 minutes. Connecting itineraries add variable layover times depending on the hub (Phoenix, Las Vegas, Denver). For the cheapest economy fare seekers, flexible schedules and accepting longer connections often yield lower prices. Use airline timetables and Google Flights for live schedule searches.
Cheap Flights from Ontario International Airport (ONT) — Find the Lowest Economy Fares
Cheap flights from Ontario International Airport (ONT) to cheapest economy classes are most often found by using fare comparison engines, being flexible on dates and airports, booking midweek, and signing up for fare alerts. Primary keywords: cheap flights from Ontario International Airport (ONT), cheapest economy fares. Secondary and LSI keywords: budget airfare, low-cost carriers, discount seats, fare alerts, off-peak travel. Use multiple search tools (Google Flights, Skyscanner, Kayak) and check low-cost carriers directly for flash sales. Consider nearby major cities (Los Angeles, San Diego, Las Vegas, Phoenix) as alternative entry points to reduce cost.
Tips
- Set flexible date searches and fare alerts for the route ONT → CHEAPEST.
- Compare total cost including baggage and seat fees rather than base fare.
- Check alternate airports in Greater Los Angeles and nearby regions.
- Book midweek flights and use red-eye options to find lower prices.