$25+ Cheap flights from Ontario (ONT) to Aurora, CO
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 8/5. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — DEN
Jun 16 — Jun 231
Round-trip
1 adult, Economy
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Find cheap flights from Ontario to Aurora with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheapflights Tip: The best prices from Ontario to Aurora are usually found in September or October, booked 58 days in advance, depart on a Thursday or Friday and return on a Wednesday
Cheap flight deals from Ontario to Aurora
Cheapest
Best
Last-minute
One-way
Cheapest flights from Ontario to AuroraExplore the most affordable flight options available from Ontario to Aurora. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 17, 2026.
Explore the most affordable flight options available from Ontario to Aurora. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 17, 2026.
This Southwest deal was found by Cheapflights users on 5/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/82:50 pm
ONT
- DEN
Nonstop2h 10m
Southwest
Wed 7/158:15 am
DEN
- ONT
Nonstop2h 20m
Southwest
Deal found 5/12![Southwest logo]()
$117
This Cheapflightsfares deal was found by Cheapflights users on 5/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/166:00 am
ONT
- DEN
Nonstop2h 26m
Frontier
Tue 6/2310:29 pm
DEN
- ONT
Nonstop2h 20m
Frontier
Deal found 5/12![Frontier logo]()
$118
This WAYA deal was found by Cheapflights users on 5/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure WAYA is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/411:51 am
ONT
- DEN
1 stop8h 36m
Frontier
Sat 6/610:29 pm
DEN
- ONT
Nonstop2h 20m
Frontier
Deal found 5/12![Frontier logo]()
$120
This Cheapflightsfares deal was found by Cheapflights users on 5/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/266:00 am
ONT
- DEN
Nonstop2h 26m
Frontier
Tue 9/291:24 pm
DEN
- ONT
1 stop8h 30m
Frontier
Deal found 5/15![Frontier logo]()
$121
This Cheapflightsfares deal was found by Cheapflights users on 5/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/26:00 am
ONT
- DEN
Nonstop2h 26m
Frontier
Tue 9/812:47 pm
DEN
- ONT
1 stop8h 01m
Frontier
Deal found 5/13![Frontier logo]()
$122
This Frontier deal was found by Cheapflights users on 5/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/183:34 pm
ONT
- DEN
1 stop8h 04m
Frontier
Tue 8/2510:29 pm
DEN
- ONT
Nonstop2h 20m
Frontier
Deal found 5/13![Frontier logo]()
$123
This Kiwi.com deal was found by Cheapflights users on 5/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/63:30 pm
ONT
- DEN
1 stop7h 39m
Frontier
Wed 6/108:44 am
DEN
- ONT
Nonstop2h 21m
Frontier
Deal found 5/12![Frontier logo]()
$124
This Cheapflightsfares deal was found by Cheapflights users on 5/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/1010:49 am
ONT
- DEN
Nonstop2h 21m
Frontier
Mon 8/2410:29 pm
DEN
- ONT
Nonstop2h 20m
Frontier
Deal found 5/16![Frontier logo]()
$126
This Cheapflightsfares deal was found by Cheapflights users on 5/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/12:55 pm
ONT
- DEN
Nonstop2h 22m
Frontier
Mon 10/59:15 am
DEN
- ONT
Nonstop2h 28m
Frontier
Deal found 5/13![Frontier logo]()
$127
This Frontier deal was found by Cheapflights users on 5/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/76:00 am
ONT
- DEN
Nonstop2h 24m
Frontier
Wed 7/158:44 am
DEN
- ONT
Nonstop2h 19m
Frontier
Deal found 5/12![Frontier logo]()
$128
This Booking.com deal was found by Cheapflights users on 5/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/46:00 am
ONT
- DEN
Nonstop2h 22m
Frontier
Mon 6/88:41 am
DEN
- ONT
Nonstop2h 24m
Frontier
Deal found 5/13![Frontier logo]()
$129
Best flights from Ontario to AuroraDiscover carefully curated flight deals from Ontario to Aurora that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated May 17, 2026.
Discover carefully curated flight deals from Ontario to Aurora that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated May 17, 2026.
This Delta deal was found by Cheapflights users on 5/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/161:00 pm
ONT
- DEN
1 stop5h 10m
Delta
Sat 9/196:25 pm
DEN
- ONT
1 stop6h 19m
Delta
Deal found 5/16![Delta logo]()
$197
This Southwest deal was found by Cheapflights users on 5/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/105:45 pm
ONT
- DEN
1 stop3h 55m
Southwest
Thu 9/246:20 am
DEN
- ONT
1 stop5h 00m
Southwest
Deal found 5/16![Southwest logo]()
$197
This United Airlines deal was found by Cheapflights users on 5/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/91:44 pm
ONT
- DEN
1 stop7h 27m
United Airlines
Thu 9/176:00 am
DEN
- ONT
1 stop7h 12m
United Airlines
Deal found 5/14![United Airlines logo]()
$197
This Southwest deal was found by Cheapflights users on 5/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/169:05 am
ONT
- DEN
1 stop6h 50m
Southwest
Sat 9/1911:15 am
DEN
- ONT
2 stops7h 45m
Southwest
Deal found 5/16![Southwest logo]()
$262
This United Airlines deal was found by Cheapflights users on 5/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/46:30 pm
ONT
- DEN
Nonstop2h 21m
United Airlines
Sun 6/77:40 am
DEN
- ONT
1 stop5h 32m
United Airlines
Deal found 5/14![United Airlines logo]()
$329
This Southwest deal was found by Cheapflights users on 5/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/144:10 pm
ONT
- DEN
2 stops5h 55m
Southwest
Wed 7/226:15 am
DEN
- ONT
1 stop4h 00m
Southwest
Deal found 5/14![Southwest logo]()
$302
This Southwest deal was found by Cheapflights users on 5/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/94:45 pm
ONT
- DEN
1 stop4h 05m
Southwest
Thu 9/174:10 pm
DEN
- ONT
2 stops6h 15m
Southwest
Deal found 5/14![Southwest logo]()
$322
This Southwest deal was found by Cheapflights users on 5/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/1510:10 am
ONT
- DEN
1 stop3h 40m
Southwest
Thu 7/237:45 am
DEN
- ONT
2 stops6h 40m
Southwest
Deal found 5/12![Southwest logo]()
$327
This Southwest deal was found by Cheapflights users on 5/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/83:40 pm
ONT
- DEN
1 stop4h 20m
Southwest
Wed 6/1011:55 am
DEN
- ONT
2 stops6h 10m
Southwest
Deal found 5/12![Southwest logo]()
$340
This Southwest deal was found by Cheapflights users on 5/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/46:30 am
ONT
- DEN
2 stops7h 00m
Southwest
Sat 9/129:15 am
DEN
- ONT
1 stop6h 00m
Southwest
Deal found 5/16![Southwest logo]()
$340
This Southwest deal was found by Cheapflights users on 5/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/37:25 am
ONT
- DEN
2 stops7h 55m
Southwest
Tue 10/66:05 am
DEN
- ONT
1 stop4h 10m
Southwest
Deal found 5/15![Southwest logo]()
$364
Last-minute flights from Ontario to AuroraDiscover last-minute flight deals from Ontario to Aurora. Data last updated May 17, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to Aurora. Data last updated May 17, 2026 and is based on user searches.
This Frontier deal was found by Cheapflights users on 5/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/243:30 pm
ONT
- DEN
1 stop10h 55m
Frontier
Sat 5/3010:29 pm
DEN
- ONT
1 stop10h 35m
Frontier
Deal found 5/13![Frontier logo]()
$250
This Frontier deal was found by Cheapflights users on 5/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/258:06 pm
ONT
- DEN
1 stop11h 00m
Frontier
Wed 5/276:05 am
DEN
- ONT
1 stop7h 49m
Frontier
Deal found 5/12![Frontier logo]()
$245
This Cheapflightsfares deal was found by Cheapflights users on 5/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/264:39 pm
ONT
- DEN
1 stop9h 46m
Frontier
Thu 5/289:52 am
DEN
- ONT
1 stop10h 19m
Frontier
Deal found 5/12![Frontier logo]()
$229
This Super.com deal was found by Cheapflights users on 5/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/268:59 am
ONT
- DEN
1 stop6h 44m
Frontier
Fri 5/296:05 am
DEN
- ONT
1 stop6h 01m
Frontier
Deal found 5/13![Frontier logo]()
$247
This Cheapflightsfares deal was found by Cheapflights users on 5/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/274:39 pm
ONT
- DEN
1 stop9h 46m
Frontier
Wed 6/310:29 pm
DEN
- ONT
Nonstop2h 20m
Frontier
Deal found 5/12![Frontier logo]()
$168
This Cheapflightsfares deal was found by Cheapflights users on 5/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/278:59 am
ONT
- DEN
1 stop6h 44m
Frontier
Thu 5/285:27 pm
DEN
- ONT
1 stop14h 41m
Frontier
Deal found 5/13![Frontier logo]()
$224
This Frontier deal was found by Cheapflights users on 5/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/274:39 pm
ONT
- DEN
1 stop9h 46m
Frontier
Fri 5/299:06 pm
DEN
- ONT
1 stop11h 42m
Frontier
Deal found 5/12![Frontier logo]()
$225
This Frontier deal was found by Cheapflights users on 5/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/274:39 pm
ONT
- DEN
1 stop9h 46m
Frontier
Sun 5/319:06 pm
DEN
- ONT
1 stop11h 02m
Frontier
Deal found 5/12![Frontier logo]()
$230
One-way flights from Ontario to AuroraSearch for one-way flight options from Ontario to Aurora. Find affordable one-way fares based on user searches. Data last updated May 17, 2026.
Search for one-way flight options from Ontario to Aurora. Find affordable one-way fares based on user searches. Data last updated May 17, 2026.
This Super.com deal was found by Cheapflights users on 5/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/56:00 am
ONT
- DEN
Nonstop2h 24m
Frontier
Deal found 5/13![Frontier logo]()
$25
This Kiwi.com deal was found by Cheapflights users on 5/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/1210:49 am
ONT
- DEN
Nonstop2h 21m
Frontier
Deal found 5/16![Frontier logo]()
$27
This Cheapflightsfares deal was found by Cheapflights users on 5/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/16:00 am
ONT
- DEN
Nonstop2h 26m
Frontier
Deal found 5/12![Frontier logo]()
$28
This Super.com deal was found by Cheapflights users on 5/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/36:00 am
ONT
- DEN
Nonstop2h 22m
Frontier
Deal found 5/14![Frontier logo]()
$29
This Frontier deal was found by Cheapflights users on 5/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/66:00 am
ONT
- DEN
Nonstop2h 22m
Frontier
Deal found 5/13![Frontier logo]()
$44
This Super.com deal was found by Cheapflights users on 5/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/86:00 am
ONT
- DEN
Nonstop2h 24m
Frontier
Deal found 5/13![Frontier logo]()
$54
This Trip.com deal was found by Cheapflights users on 5/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/286:00 am
ONT
- DEN
Nonstop2h 24m
Frontier
Deal found 5/15![Frontier logo]()
$57
This Trip.com deal was found by Cheapflights users on 5/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/156:00 am
ONT
- DEN
Nonstop2h 24m
Frontier
Deal found 5/14![Frontier logo]()
$58
This United Airlines deal was found by Cheapflights users on 5/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/85:00 am
ONT
- DEN
Nonstop2h 20m
United Airlines
Deal found 5/14![United Airlines logo]()
$59
This FlightHub deal was found by Cheapflights users on 5/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/76:00 am
ONT
- DEN
Nonstop2h 24m
Frontier
Deal found 5/15![Frontier logo]()
$61
Find flight deals from Ontario to Aurora
Keep the following information in mind while searching for Ontario to Aurora flight deals. Data was last updated May 17, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $117 (Southwest) |
One-way from | $25 (Super.com) |
Popular in | June |
Cheapest in | September |
Average price | $219 |
Cheapflights Fare Finder
Customize your flight search to find flights from Ontario to Aurora 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 2,558,603 searches. Data last updated May 17, 2026.
Use the filters below to find and compare flights from Ontario to Aurora that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
OntarioDenver
ONT - DEN
ONTDEN
Ontario
Wed 9/16
1:00 pm-7:10 pm
1 stop5h 10m
Denver Intl
Sat 9/19
6:25 pm-11:44 pm
1 stop6h 19m
$197
OntarioDenver
ONT - DEN
ONTDEN
Ontario
Thu 9/10
5:45 pm-10:40 pm
1 stop3h 55m
Denver Intl
Thu 9/24
6:20 am-10:20 am
1 stop5h 00m
$197
OntarioDenver
ONT - DEN
ONTDEN
Ontario
Wed 9/9
1:44 pm-10:11 pm
1 stop7h 27m
Denver Intl
Thu 9/17
6:00 am-12:12 pm
1 stop7h 12m
$197
OntarioDenver
ONT - DEN
ONTDEN
Ontario
Wed 9/16
9:05 am-4:55 pm
1 stop6h 50m
Denver Intl
Sat 9/19
11:15 am-6:00 pm
2 stops7h 45m
$262
OntarioDenver
ONT - DEN
ONTDEN
Ontario
Tue 7/14
4:10 pm-11:05 pm
2 stops5h 55m
Denver Intl
Wed 7/22
6:15 am-9:15 am
1 stop4h 00m
$302
OntarioDenver
ONT - DEN
ONTDEN
Ontario
Wed 9/9
4:45 pm-9:50 pm
1 stop4h 05m
Denver Intl
Thu 9/17
4:10 pm-9:25 pm
2 stops6h 15m
$322
OntarioDenver
ONT - DEN
ONTDEN
Ontario
Wed 7/15
10:10 am-2:50 pm
1 stop3h 40m
Denver Intl
Thu 7/23
7:45 am-1:25 pm
2 stops6h 40m
$327
Quickest round-trip
OntarioDenver
ONT - DEN
ONTDEN
Ontario
Thu 6/4
6:30 pm-9:51 pm
Nonstop2h 21m
Denver Intl
Sun 6/7
7:40 am-12:12 pm
1 stop5h 32m
$329
OntarioDenver
ONT - DEN
ONTDEN
Ontario
Mon 6/8
3:40 pm-9:00 pm
1 stop4h 20m
Denver Intl
Wed 6/10
11:55 am-5:05 pm
2 stops6h 10m
$340
OntarioDenver
ONT - DEN
ONTDEN
Ontario
Fri 9/4
6:30 am-2:30 pm
2 stops7h 00m
Denver Intl
Sat 9/12
9:15 am-2:15 pm
1 stop6h 00m
$340
Showing 1-10 of 22 resultsSorted by cheapest first
Best time to book a flight from Ontario to Aurora
Have a flexible travel schedule? Discover the best time to fly to Aurora from Ontario with our price prediction graph.
ONT-DEN
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Ontario to Aurora
ONT-9UR
ONT-DEN
What is the cheapest time of day to fly from ONT to 9UR?
Find hourly flight availability from Ontario to Aurora. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated May 17, 2026.
It’s optimal to fly from Ontario to Aurora in the evening. By choosing this option you can save up to 51% on the cost of your flight, compared to a flight at noon.
What is the cheapest day to fly from Ontario to Aurora?
Use this chart to determine the cheapest time to fly round-trip from Ontario to Aurora. Price data was last updated on May 16, 2026.
Travelers seeking maximum savings on their Ontario to Aurora flight should consider departing on Saturday evenings when fares are most often at their lowest. Monday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
Weekly flight availability from Ontario to Aurora
Explore weekly flight availability from Ontario to Aurora. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated May 17, 2026.
The most flights from ONT to 9UR are scheduled on a Friday (13 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (6 on average).
How much does it cost to fly round-trip from Ontario to Aurora?
Reviews of airlines servicing Aurora
Get insights into the airlines that provide service to Aurora. 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 Aurora. Reviews last updated May 17, 2026.
Peruse reviews from past customers who have flown with Southwest,United Airlines, andFrontier from Ontario to Aurora to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Boarding
8.1
Comfort
8.0
Food
7.0
Overall
8.0
Crew
8.6
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Boarding
8.1
Comfort
8.0
Food
7.0
Overall
8.0
Crew
8.6
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Boarding
8.1
Comfort
8.0
Food
7.0
Overall
8.0
Crew
8.6
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Boarding
8.1
Comfort
8.0
Food
7.0
Overall
8.0
Crew
8.6
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Related info for your journey
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Ontario and Aurora flights
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Top 4 airlines flying from Ontario to Aurora
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| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$62 | Average$165 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$157 | Average$330 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$157 | Average$333 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$172 | Average$273 | FlexibilityNo cancel fee | On-timeN/A |