Cheap flights from Ontario (ONT) to Missouri from $76
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/20. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
ONT — STL
may. 19 — may. 261
From?
To?
1 adult, Economy
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What is the cheapest month to fly from Ontario to Missouri?
Flights from Ontario to Missouri lean towards being more expensive in July. Prices are generally better when you fly from Ontario to Missouri in September, with the cheapest ticket starting at $129.
When is the cheapest time to fly from Ontario to Missouri (ONT - MO)?
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Ontario to Missouri as you normally would.
Cheap Frontier flights from Ontario to Missouri
Explore cheap flight options specifically provided by Frontier for the route between Ontario and Missouri. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,632,958 searches. Data last updated mayo 14, 2024.
Take a look at some of the lowest-priced Frontier flights heading from Ontario to Missouri. Be sure to come back soon if the deals available don't appeal to you at this time.
sáb. 6/112:59 amONT - STL
1 stop19h 33mFrontier
vie. 6/75:36 pmSTL - ONT
1 stop5h 47mFrontier
Deal found 5/13$125
dom. 5/2612:59 amONT - STL
1 stop6h 37mFrontier
lun. 6/38:04 pmSTL - ONT
1 stop5h 55mFrontier
Deal found 5/13$126
dom. 5/2612:59 amONT - STL
1 stop6h 37mFrontier
mar. 6/42:12 pmSTL - ONT
1 stop25h 03mFrontier
Deal found 5/13$137
dom. 6/211:30 pmONT - STL
1 stop8h 43mFrontier
mar. 6/410:44 pmSTL - ONT
1 stop10h 18mFrontier
Deal found 5/13$140
mar. 5/2110:42 pmONT - STL
1 stop9h 31mFrontier
jue. 5/237:23 pmSTL - ONT
1 stop25h 00mFrontier
Deal found 5/13$141
vie. 6/78:50 pmONT - STL
1 stop11h 52mFrontier
dom. 6/93:37 pmSTL - ONT
1 stop16h 46mFrontier
Deal found 5/13$142
vie. 8/1612:49 amONT - STL
1 stop6h 48mFrontier
dom. 8/183:53 pmSTL - ONT
1 stop9h 46mFrontier
Deal found 5/12$143
mar. 8/1312:49 amONT - STL
1 stop6h 48mFrontier
mar. 8/207:29 pmSTL - ONT
1 stop24h 40mFrontier
Deal found 5/12$144
sáb. 5/2510:10 pmONT - STL
1 stop10h 03mFrontier
lun. 5/277:23 pmSTL - ONT
1 stop19h 31mFrontier
Deal found 5/13$145
Cheap United Airlines flights from Ontario to Missouri
Explore cheap flight options specifically provided by United Airlines for the route between Ontario and Missouri. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,632,958 searches. Data last updated mayo 14, 2024.
Take a gander at the lowest prices we've found on United Airlines flights from Ontario to Missouri. Ensure the flight price, dates, time, and airline match your criteria before you book.
mié. 9/46:00 amONT - SGF
1 stop5h 45mUnited Airlines
sáb. 9/73:15 pmSGF - ONT
1 stop8h 16mUnited Airlines
Deal found 5/12$288
sáb. 8/176:00 amONT - SGF
1 stop5h 55mUnited Airlines
sáb. 8/243:15 pmSGF - ONT
1 stop8h 16mUnited Airlines
Deal found 5/13$326
sáb. 8/171:45 pmONT - SGF
2 stops7h 50mUnited Airlines
sáb. 8/243:15 pmSGF - ONT
1 stop8h 16mUnited Airlines
Deal found 5/13$331
mar. 6/111:55 pmONT - MCI
1 stop8h 40mUnited Airlines
mar. 6/185:25 pmMCI - ONT
1 stop5h 23mUnited Airlines
Deal found 5/12$348
vie. 7/51:30 pmONT - MCI
1 stop8h 05mUnited Airlines
sáb. 7/135:10 pmMCI - ONT
1 stop5h 38mUnited Airlines
Deal found 5/13$367
dom. 7/285:20 amONT - MCI
1 stop5h 23mUnited Airlines
sáb. 8/36:00 amMCI - ONT
1 stop8h 15mUnited Airlines
Deal found 5/13$388
sáb. 9/75:15 amONT - MCI
1 stop5h 13mUnited Airlines
lun. 9/95:20 pmMCI - ONT
1 stop5h 42mUnited Airlines
Deal found 5/13$407
mar. 8/65:20 amONT - MCI
1 stop5h 23mUnited Airlines
mar. 8/65:13 pmMCI - ONT
1 stop5h 35mUnited Airlines
Deal found 5/13$476
dom. 5/191:36 pmONT - MCI
1 stop7h 41mUnited Airlines
sáb. 6/85:26 pmMCI - ONT
1 stop5h 12mUnited Airlines
Deal found 5/13$547
Cheap Ontario to Missouri flights in May & June 2024
Find cheap flight options from Ontario to Missouri specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,632,958 searches. Prices were last updated on mayo 14, 2024.
Check out some of the best flight deals from Ontario to Missouri in 2024. Check back in a little while for more flight options.
sáb. 6/112:59 amONT - STL
1 stop19h 33mFrontier
vie. 6/75:36 pmSTL - ONT
1 stop5h 47mFrontier
Deal found 5/13$125
dom. 5/2612:59 amONT - STL
1 stop6h 37mFrontier
lun. 6/38:04 pmSTL - ONT
1 stop5h 55mFrontier
Deal found 5/13$126
mar. 5/2112:59 amONT - STL
1 stop6h 37mFrontier
mié. 5/2910:21 pmSTL - ONT
1 stop12h 19mFrontier
Deal found 5/13$137
lun. 6/312:59 amONT - MCI
1 stop5h 16mFrontier
mar. 6/117:44 pmMCI - ONT
1 stop6h 15mFrontier
Deal found 5/13$137
mar. 5/1410:49 pmONT - STL
1 stop9h 29mFrontier
sáb. 5/1811:41 pmSTL - ONT
1 stop8h 36mFrontier
Deal found 5/13$140
lun. 6/312:59 amONT - MCI
1 stop5h 16mFrontier
mié. 6/128:16 pmMCI - ONT
1 stop5h 33mFrontier
Deal found 5/13$140
mié. 5/1511:09 pmONT - STL
1 stop9h 04mFrontier
mié. 5/2210:21 pmSTL - ONT
1 stop12h 19mFrontier
Deal found 5/13$141
vie. 6/78:50 pmONT - STL
1 stop11h 52mFrontier
dom. 6/93:37 pmSTL - ONT
1 stop16h 46mFrontier
Deal found 5/13$142
sáb. 5/2510:10 pmONT - STL
1 stop10h 03mFrontier
lun. 5/277:23 pmSTL - ONT
1 stop19h 31mFrontier
Deal found 5/13$145
Ontario to Missouri 2024 flight deals
Discover exclusive flight deals for travel between Ontario and Missouri in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,632,958 searches. Data last updated mayo 14, 2024.
Check out some of the best flight deals from Ontario to Missouri in 2024. Check back in a little while for more flight options.
sáb. 6/112:59 amONT - STL
1 stop19h 33mFrontier
vie. 6/75:36 pmSTL - ONT
1 stop5h 47mFrontier
Deal found 5/13$125
dom. 5/2612:59 amONT - STL
1 stop6h 37mFrontier
lun. 6/38:04 pmSTL - ONT
1 stop5h 55mFrontier
Deal found 5/13$126
mar. 5/2112:59 amONT - STL
1 stop6h 37mFrontier
mié. 5/2910:21 pmSTL - ONT
1 stop12h 19mFrontier
Deal found 5/13$137
lun. 6/312:59 amONT - MCI
1 stop5h 16mFrontier
mar. 6/117:44 pmMCI - ONT
1 stop6h 15mFrontier
Deal found 5/13$137
mar. 5/1410:49 pmONT - STL
1 stop9h 29mFrontier
sáb. 5/1811:41 pmSTL - ONT
1 stop8h 36mFrontier
Deal found 5/13$140
lun. 6/312:59 amONT - MCI
1 stop5h 16mFrontier
mié. 6/128:16 pmMCI - ONT
1 stop5h 33mFrontier
Deal found 5/13$140
mié. 5/1511:09 pmONT - STL
1 stop9h 04mFrontier
mié. 5/2210:21 pmSTL - ONT
1 stop12h 19mFrontier
Deal found 5/13$141
vie. 6/78:50 pmONT - STL
1 stop11h 52mFrontier
dom. 6/93:37 pmSTL - ONT
1 stop16h 46mFrontier
Deal found 5/13$142
vie. 8/1612:49 amONT - STL
1 stop6h 48mFrontier
dom. 8/183:53 pmSTL - ONT
1 stop9h 46mFrontier
Deal found 5/12$143
Ontario to Missouri flights leaving soon
Find last-minute flight options from Ontario to Missouri for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 2,632,958 searches. Data last updated mayo 14, 2024.
Consider one of these great deals we found on last-minute flights from Ontario to Missouri. Users should be sure to double check the price, date, and time of their last-minute flight.
mar. 5/2112:59 amONT - STL
1 stop6h 37mFrontier
mié. 5/2910:21 pmSTL - ONT
1 stop12h 19mFrontier
Deal found 5/13$137
mar. 5/2110:42 pmONT - STL
1 stop9h 31mFrontier
jue. 5/237:23 pmSTL - ONT
1 stop25h 00mFrontier
Deal found 5/13$141
lun. 5/2012:59 amONT - STL
1 stop10h 10mFrontier
jue. 5/237:23 pmSTL - ONT
1 stop25h 00mFrontier
Deal found 5/13$150
jue. 5/2312:59 amONT - STL
1 stop6h 37mFrontier
mar. 5/287:23 pmSTL - ONT
1 stop22h 42mFrontier
Deal found 5/13$240
mar. 5/212:25 pmONT - STL
1 stop17h 11mFrontier
vie. 5/246:40 pmSTL - ONT
1 stop21h 55mFrontier
Deal found 5/13$241
vie. 5/2412:59 amONT - STL
1 stop6h 26mFrontier
lun. 5/277:23 pmSTL - ONT
1 stop19h 31mFrontier
Deal found 5/13$242
jue. 5/2312:59 amONT - STL
1 stop6h 37mFrontier
lun. 5/277:23 pmSTL - ONT
1 stop15h 41mFrontier
Deal found 5/12$246
jue. 5/2311:07 pmONT - STL
1 stop9h 06mFrontier
mar. 5/282:12 pmSTL - ONT
1 stop27h 53mFrontier
Deal found 5/14$249
jue. 5/2312:59 amONT - STL
1 stop6h 37mFrontier
dom. 5/267:23 pmSTL - ONT
1 stop15h 51mFrontier
Deal found 5/13$251
One-way flights to Missouri from Ontario
Search for one-way flight options from Ontario to Missouri. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 2,632,958 searches. Data last updated mayo 14, 2024.
Some of the best available deals we've found on one-way flights from Ontario to Missouri. Those seeking round-trip flights from Ontario to Missouri should utilize the search form at the the top of the page.
lun. 5/209:57 pmONT - STL
1 stop10h 16mFrontier
Deal found 5/13$76
dom. 5/196:09 pmONT - STL
1 stop14h 04mFrontier
Deal found 5/13$79
mar. 6/412:59 amONT - MCI
1 stop16h 17mFrontier
Deal found 5/13$80
vie. 6/710:23 pmONT - MCI
1 stop7h 18mFrontier
Deal found 5/13$84
lun. 5/2012:59 amONT - STL
1 stop10h 10mFrontier
Deal found 5/13$85
lun. 5/2012:59 amONT - MCI
1 stop5h 16mFrontier
Deal found 5/13$85
sáb. 5/2512:59 amONT - MCI
1 stop5h 16mFrontier
Deal found 5/13$88
vie. 6/2110:23 pmONT - MCI
1 stop7h 18mFrontier
Deal found 5/13$89
vie. 6/2112:49 amONT - STL
1 stop6h 40mFrontier
Deal found 5/13$90
Find flights from Ontario to Missouri within your budget
Customize your flight search to find flights from Ontario to Missouri that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,632,958 searches. Data last updated mayo 14, 2024.
Fly from
Any airport
Fly to
Any airport
Budget
$125 - $351
Route
Depart
Return
Price
OntarioLambert-St Louis
ONT - STL
ONTSTL
Ontario
sáb. 6/1
1 stop19h 33m
Lambert-St Louis
vie. 6/7
1 stop5h 47m
$125
OntarioLambert-St Louis
ONT - STL
ONTSTL
Ontario
dom. 5/26
1 stop6h 37m
Lambert-St Louis
lun. 6/3
1 stop5h 55m
$126
OntarioLambert-St Louis
ONT - STL
ONTSTL
Ontario
dom. 5/26
1 stop6h 37m
Lambert-St Louis
mar. 6/4
1 stop25h 03m
$137
OntarioKansas City
ONT - MCI
ONTMCI
Ontario
lun. 6/3
1 stop5h 16m
Kansas City
mar. 6/11
1 stop6h 15m
$137
OntarioLambert-St Louis
ONT - STL
ONTSTL
Ontario
dom. 6/2
1 stop8h 43m
Lambert-St Louis
mar. 6/4
1 stop10h 18m
$140
OntarioKansas City
ONT - MCI
ONTMCI
Ontario
vie. 7/5
1 stop5h 57m
Kansas City
mié. 7/10
1 stop7h 23m
$287
OntarioSpringfield-Branson
ONT - SGF
ONTSGF
Ontario
mié. 9/4
1 stop5h 45m
Springfield-Branson
sáb. 9/7
1 stop8h 16m
$288
OntarioKansas City
ONT - MCI
ONTMCI
Ontario
vie. 9/6
2 stops8h 12m
Kansas City
mar. 9/10
1 stop7h 36m
$291
OntarioKansas City
ONT - MCI
ONTMCI
Ontario
lun. 6/3
1 stop5h 16m
Kansas City
mar. 6/11
2 stops9h 23m
$351
No data available for this route at this time. Please check back soon.
Reviews of airlines servicing Missouri
Get insights into the airlines that provide service to Missouri. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Missouri. Reviews last updated mayo 14, 2024.
Read reviews from past customers who have flown Frontier, United Airlines and American Airlines from Ontario to Missouri. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
6,045 reviews
Boarding
8.3
Food
7.3
Comfort
8.1
Entertainment
7.8
Overall
8.2
Crew
8.7
Reviews
1 / 10
My original flight was delayed so they found this flight for me so I could arrive at a reasonable time
Southwest
6,045 reviews
Southwest
6,045 reviews
Boarding
8.3
Food
7.3
Comfort
8.1
Entertainment
7.8
Overall
8.2
Crew
8.7
Reviews
1 / 10
My original flight was delayed so they found this flight for me so I could arrive at a reasonable time
9,152 reviews
Southwest
6,045 reviews
Boarding
8.3
Food
7.3
Comfort
8.1
Entertainment
7.8
Overall
8.2
Crew
8.7
Reviews
1 / 10
My original flight was delayed so they found this flight for me so I could arrive at a reasonable time
10,706 reviews
Southwest
6,045 reviews
Boarding
8.3
Food
7.3
Comfort
8.1
Entertainment
7.8
Overall
8.2
Crew
8.7
Reviews
1 / 10
My original flight was delayed so they found this flight for me so I could arrive at a reasonable time
10,959 reviews
Southwest
6,045 reviews
Boarding
8.3
Food
7.3
Comfort
8.1
Entertainment
7.8
Overall
8.2
Crew
8.7
Reviews
1 / 10
My original flight was delayed so they found this flight for me so I could arrive at a reasonable time
14,561 reviews
Southwest
6,045 reviews
Boarding
8.3
Food
7.3
Comfort
8.1
Entertainment
7.8
Overall
8.2
Crew
8.7
Reviews
1 / 10
My original flight was delayed so they found this flight for me so I could arrive at a reasonable time
Related info for your journey
Find useful and relevant information for your journey from Ontario to Missouri. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for Ontario to MissouriSee prices for flight routes from nearby airports that may be better suited for you.
See prices for flight routes from nearby airports that may be better suited for you.
Top 5 airlines flying from Ontario to Missouri
Discover the top 5 airlines that operate flights from Ontario to Missouri. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,632,958 searches. Data last updated mayo 14, 2024.
Search flights from Ontario to Missouri by cabin class
Find flights from Ontario to Missouri, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Hourly flight availability from Ontario to Missouri
Find hourly flight availability from Ontario to Missouri. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated mayo 14, 2024.
| 0%of flight departures | Early morningMidnight to 6 am |
|---|---|
| 100%of flight departures | Morning6 am to noon |
| 0%of flight departures | AfternoonNoon to 6 pm |
| 0%of flight departures | Evening6 pm to midnight |
Midnight
6 AM
Noon
6 PM
Book a flight to one of these trending destinations
User searches for flights to these destinations increased 20% or more in the past 90 days compared to other destinations
Fly with Cheapflights
Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.
How does Cheapflights help users find flights from Ontario to Missouri?
Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Ontario to Missouri. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.
Why should you use Cheapflights to find cheap flight tickets from Ontario to Missouri?
Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Ontario to Missouri for you. Better yet — we are completely free to use.
Can Cheapflights find flights from Ontario to Missouri with no change fees?
Certainly. Search results for flights to Missouri from Ontario shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.
Can Cheapflights notify me if prices for flights from Ontario to Missouri become cheaper?
Yes, Cheapflights offers price alerts on Ontario to Missouri flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.