Best Flights starting from $450
from$450economy
Houston (Any)
Fri, May 22
Roundtrip
Ontario (ONT)
Sat, May 23
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Other Destinations
Houston (Any) to Orlando (MCO) in May from $28
From $28
Houston (Any) to Phoenix (Any) in May from $44
From $44
Houston (Any) to Las Vegas (LAS) in May from $54
From $54
Houston (Any) to Miami (Any) in May from $56
From $56
Houston (Any) to Las Vegas (Any) in May from $64
From $64
Houston (Any) to El Paso (ELP) in May from $70
From $70
Flights from Other Cities
Denver (Any) to Ontario (ONT) in May from $40
From $40
Denver (Any) to Ontario (ONT) in May from $56
From $56
Las Vegas (LAS) to Ontario (ONT) in May from $56
From $56
Omaha (OMA) to Ontario (ONT) in May from $80
From $80
Cleveland (Any) to Ontario (ONT) in May from $86
From $86
Grand Rapids (GRR) to Ontario (ONT) in May from $86
From $86
✈️ Flight Guide: Houston (Any) → Ontario (ONT)
Complete travel information for your May journey
May is a high-opportunity month for flights from Houston (All Airports) (HOUA) to Ontario International Airport (ONT) due to spring break spillover and Memorial Day travel. Expect warmer, drier weather in Southern California and higher demand around late-May holiday weekends. For the best May fares, book 3–8 weeks in advance, be flexible with mid-week departures, and compare both Houston airports (George Bush Intercontinental and William P. Hobby). Pack layers for varied temperatures: Houston humidity can be high at home while Ontario and the Inland Empire are typically sunny and warm. Consider nearby destinations—Los Angeles, Riverside, San Bernardino, and Anaheim—when planning ground transfers; ONT often offers convenient access to Inland Empire attractions like Victoria Gardens and Ontario Mills.
Departing from Houston (Any) FAQs
May is a popular month for travel between Houston (All Airports) (HOUA) and Ontario International Airport (ONT) because of warm spring weather and Memorial Day weekend. Expect generally smooth operations at Houston's airports, but book early for holiday weekends and check both Hobby and IAH schedules if you are flexible. Compare flights across Houston airports to find cheaper fares and better connections.
Nonstop flight time, if available, is typically around 3.5 to 4 hours, while most one-stop itineraries average 4.5 to 6 hours total door-to-door including layovers. Seasonal schedules in May can add more nonstop options on weekends, but many travelers will find competitive one-stop itineraries via major hubs. Use duration filters on search engines to compare shortest travel times and avoid long connections.
Yes — you can often find lower fares in May by booking mid-week departures (Tuesday–Thursday) and avoiding Memorial Day weekend when prices spike. Use fare alerts, compare nearby departure airports (IAH and HOU) and look for sales from low-cost carriers and legacy airlines. Consider flexible dates and connecting flights to reduce price, and sign up for airline newsletters for May-specific deals.
Houston (All Airports) (HOUA) options include rideshare pickup zones, airport shuttles, taxis, and park-and-fly lots; inter-airport shuttles are available between George Bush Intercontinental (IAH) and William P. Hobby (HOU) for connections. Plan extra transfer time if you need to travel between Houston airports before your HOUA departure, and check traffic forecasts during May holiday weekends. Book airport parking in advance for lower rates and reserve rideshare pickup times for peak periods.
As of May, domestic travel between Houston (All Airports) (HOUA) and Ontario International Airport (ONT) typically requires standard photo ID for TSA screening; always confirm current TSA rules and any airline-specific health policies. Check airline updates for boarding requirements or temporary service changes that may apply in May, and arrive early during holiday weekends. Consult official airline and airport websites before departure for the latest advisories.
From Houston (All Airports) (HOUA), many travelers access destinations across Southern California including Los Angeles, Riverside, San Bernardino, Anaheim and San Diego when flying into Ontario International Airport (ONT). Consider alternate arrival airports like Los Angeles (LAX) for more flight choices, or use ONT for closer access to Inland Empire destinations such as Rancho Cucamonga, Ontario Mills, and Riverside. Compare ground transit times from each airport to your final destination in May to save time and money.
May arrivals at Ontario International Airport (ONT) are characterized by warm, sunny days and increased domestic travel tied to Memorial Day. Arrival procedures are efficient, but rental car desks and shuttle services fill up quickly on holiday weekends. Ontario is an ideal gateway to Inland Empire attractions (Rancho Cucamonga, Riverside, San Bernardino) and convenient for Southern California visitors heading to Los Angeles or Anaheim. For smoother May travel, pre-book ground transport, check real-time airport updates, and consider early morning flights to avoid afternoon traffic on I-10 and CA-60.
Arriving at Ontario (ONT) FAQs
When arriving at Ontario International Airport (ONT) in May, expect generally warm and dry weather with efficient arrivals processes and improved parking and rental car availability compared with LAX. ONT provides convenient access to Inland Empire destinations such as Rancho Cucamonga, Riverside, and San Bernardino, and it can be faster than LAX for travelers heading inland. Check car rental reservations and regional shuttle schedules for Memorial Day weekend when demand increases.
ONT sees a moderate increase in passenger traffic in May, especially around Memorial Day weekend and spring events, which can affect baggage claim and rental car counters. Arrive at the airport with realistic ground transportation plans and allow extra time if you have onward connections to nearby cities like Los Angeles or Anaheim. Booking services like car rentals and shuttles in advance helps avoid delays during peak May travel days.
From Ontario International Airport (ONT), you can easily reach Los Angeles, Anaheim (Disneyland), Riverside, San Bernardino, and Palm Springs for May getaways. May is ideal for theme parks, outlet shopping at Ontario Mills, and outdoor activities in the nearby San Bernardino Mountains. Plan day trips and check local event calendars for Memorial Day parades, farmers markets, and concerts around Rancho Cucamonga and Riverside.
Yes — ONT offers shuttle services, rideshare options, and private transfers that connect to downtown Los Angeles, though travel times vary by traffic. The Metrolink commuter rail and regional express buses provide alternative options for traveling toward Los Angeles and Riverside County. During May daylight hours, early departures can help you avoid peak freeway congestion.
Pack lightweight layers, sun protection, and comfortable walking shoes for daytime highs often in the 70s–80s°F (20s–30s°C) in May. If you plan mountain excursions near Big Bear or Idyllwild, include a light jacket since elevation brings cooler evenings. Keep essentials in your carry-on for faster exits through ONT baggage claim and to accommodate potential baggage delays during the busy Memorial Day period.
Airline availability varies by season, but major carriers and low-cost airlines frequently offer routes between Houston and Southern California with options that land at ONT. In May, check schedules for carriers such as American Airlines, United, Delta, Alaska, and select low-cost operators for competitive pricing. Use flight search tools and airline timetables to find the best May itineraries and to see if any direct flights are temporarily scheduled.
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May Events & Festivals Near ONT for Travelers from Houston (All Airports) (HOUA)
May brings spring and several regional events near Ontario International Airport (ONT) that travelers from Houston (All Airports) (HOUA) may want to attend. Expect Memorial Day weekend activities, local farmers markets and outdoor concerts at Victoria Gardens (Rancho Cucamonga), and cultural Cinco de Mayo festivities in cities across the Inland Empire and Los Angeles. Check event calendars for Riverside and Anaheim for street fairs, sports events, and theme park seasonal offers in May.
Best Time to Fly: Houston (All Airports) (HOUA) → Ontario International Airport (ONT) in May
The best time to fly HOUA to ONT in May for low fares and fewer crowds is mid-week (Tuesday–Thursday) and in the early morning. Avoid peak Memorial Day weekend travel when prices and crowds increase; if you must travel over the holiday, consider flying on the holiday itself for lower demand. For pleasant weather and events, early May is ideal before late-May holiday spikes.
Direct vs Connecting: HOUA to ONT Flights in May
Choosing between direct and connecting flights depends on priorities: nonstop (direct) offers shorter travel time and fewer transfer hassles, while one-stop connecting flights often reduce cost and increase scheduling flexibility in May. For Memorial Day travel, direct flights may sell out or become expensive, making well-timed connections a valuable money-saving option. Evaluate total travel time, connection length, and the risk of missed connections when selecting flights, and opt for connections with at least 60–90 minutes buffer for domestic transfers.
Airline Comparison: Best Carriers for HOUA to ONT Flights in May
Compare major carriers serving the HOUA–ONT market by price, baggage fees, loyalty benefits, and schedule convenience in May. Legacy carriers (American, United, Delta) often provide greater schedule reliability and more flexible change policies, while low-cost carriers may offer lower base fares but extra fees for bags and seat selection. Alaska and some ULCCs can provide competitive nonstop or single-connection options into Southern California in May. Evaluate total trip cost (fare + baggage + seat fees) and loyalty perks when choosing an airline for May travel.
Seasonal Travel Tips for HOUA to ONT in May
May travel between Houston (All Airports) (HOUA) and Ontario International Airport (ONT) benefits from generally favorable weather, but travelers should prepare for holiday surges around Memorial Day. Pack sunscreen and layers for warm Inland Empire days and cooler mountain evenings. Reserve rental cars, shuttles, and airport parking ahead of time to avoid premium weekend rates. For smoother travel, select early-morning flights to reduce delay risk, enroll in TSA PreCheck if possible, and monitor air quality alerts in both Houston and Southern California during wildfire season.
Extra Tips
- Book rental cars and shuttles in advance for Memorial Day weekend.
- Choose early flights to minimize delay risk and beat airport crowds.
- Pack sun protection and light layers for temperature differences between Houston humidity and ONT sunshine.
- Use fare alerts and flexible-date searches to capture May airfare deals.
- Consider travel insurance for holiday travel in case of schedule changes.
Flight Time & Schedules: HOUA to ONT in May
Typical nonstop flight time from Houston (All Airports) (HOUA) to Ontario International Airport (ONT) is approximately 3.5–4 hours, though many itineraries include one connection and average 4.5–6 hours total travel time. Schedules increase in May to accommodate spring travel and holiday demand; airlines may add extra weekend frequencies around Memorial Day. Always confirm specific departure airport (IAH or HOU) and connection points when booking and use time-of-day filters to select red-eye or early-morning flights with fewer delays.
Cheap Flights: Houston (All Airports) (HOUA) to Ontario International Airport (ONT) in May
Find cheap flights from Houston (All Airports) (HOUA) to Ontario International Airport (ONT) in May by searching flexible dates, comparing both Houston airports (HOU and IAH), and setting fare alerts. Mid-week departures (Tuesday–Thursday), early-morning flights, and one-stop itineraries usually yield the lowest prices. Use low-cost carriers and hybrid itineraries, consider alternative arrival airports like Los Angeles (LAX) for more competition, and book 3–8 weeks in advance to capture May deals. Sign up for airline newsletters and use incognito fare searches to monitor price drops.
Tips
- Set fare alerts for HOUA to ONT for May and monitor price history.
- Compare departures from both William P. Hobby (HOU) and George Bush Intercontinental (IAH).
- Book mid-week flights and avoid Memorial Day weekend for the best rates.
- Consider one-stop flights via major hubs (DFW, DEN, PHX) to reduce cost.
- Use points, miles, and companion discounts to lower May airfare.