$110+ Cheap flights from Raleigh to Ontario (RDU - ONT)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/30. Fares are subject to change and may not be available on all flights or dates of travel.
RDU — ONT
Oct 6 — Oct 131
Round-trip
1 adult, Economy
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Find cheap flights from Raleigh to Ontario 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.Cheap flight deals from Raleigh to Ontario
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Cheapest flights from Raleigh to OntarioExplore the most affordable flight options available from Raleigh to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 6, 2026.
Explore the most affordable flight options available from Raleigh to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 6, 2026.
This Frontier deal was found by Cheapflights users on 9/1. 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 11/212:51 pm -
1 stop9h 17m
Wed 11/116:25 am -
1 stop8h 13m
Deal found 9/1![Frontier logo]()
$238
This Kiwi.com deal was found by Cheapflights users on 9/3. 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.
Tue 10/274:20 pm -
2 stops21h 15m
Tue 11/311:52 am -
1 stop26h 46m
Deal found 9/3![Frontier logo]()
$245
This CheapOair deal was found by Cheapflights users on 9/1. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/1511:56 am -
1 stop10h 09m
Tue 10/2011:52 am -
1 stop26h 48m
Deal found 9/1![Frontier logo]()
$248
This Frontier deal was found by Cheapflights users on 9/1. 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 9/286:17 pm -
1 stop8h 30m
Fri 10/27:46 pm -
1 stop12h 49m
Deal found 9/1![Frontier logo]()
$254
This Priceline deal was found by Cheapflights users on 9/3. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/216:35 pm -
1 stop8h 15m
Sat 10/246:15 am -
1 stop7h 09m
Deal found 9/3![Frontier logo]()
$262
This Frontier deal was found by Cheapflights users on 9/2. 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 10/274:20 pm -
2 stops10h 31m
Wed 10/286:25 am -
1 stop8h 13m
Deal found 9/2![Frontier logo]()
$263
This CheapOair deal was found by Cheapflights users on 9/3. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/167:37 pm -
1 stop7h 13m
Mon 10/198:03 pm -
1 stop12h 08m
Deal found 9/3![Frontier logo]()
$264
This Frontier deal was found by Cheapflights users on 9/2. 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.
Fri 10/1611:56 am -
1 stop10h 12m
Fri 10/238:03 pm -
1 stop12h 08m
Deal found 9/2![Frontier logo]()
$270
This Expedia deal was found by Cheapflights users on 9/2. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/96:17 pm -
1 stop19h 13m
Sat 9/126:15 am -
1 stop27h 16m
Deal found 9/2![Frontier logo]()
$278
This Frontier deal was found by Cheapflights users on 9/1. 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.
Thu 11/512:51 pm -
1 stop9h 17m
Wed 11/116:25 am -
1 stop8h 13m
Deal found 9/1![Frontier logo]()
$283
Best flights from Raleigh to OntarioDiscover carefully curated flight deals from Raleigh to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 6, 2026.
Discover carefully curated flight deals from Raleigh to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 6, 2026.
This Southwest deal was found by Cheapflights users on 9/3. 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 10/296:15 pm -
1 stop7h 05m
Mon 11/21:45 pm -
1 stop6h 50m
Deal found 9/3![Southwest logo]()
$337
This Delta deal was found by Cheapflights users on 9/2. 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 2/35:20 am -
1 stop9h 07m
Tue 2/91:00 pm -
1 stop7h 41m
Deal found 9/2![Delta logo]()
$337
This Alaska Airlines deal was found by Cheapflights users on 9/4. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/247:00 am -
1 stop11h 05m
Tue 12/16:00 am -
1 stop31h 35m
Deal found 9/4![Alaska Airlines logo]()
$435
This United Airlines deal was found by Cheapflights users on 9/2. 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 1/2711:20 am -
2 stops12h 00m
Wed 2/35:00 am -
1 stop7h 19m
Deal found 9/2![United Airlines logo]()
$452
This Southwest deal was found by Cheapflights users on 9/3. 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 10/213:15 pm -
2 stops9h 30m
Sat 10/249:40 am -
2 stops10h 25m
Deal found 9/3![Southwest logo]()
$393
This Southwest deal was found by Cheapflights users on 9/2. 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 9/2411:30 am -
1 stop11h 55m
Sat 10/35:45 am -
1 stop7h 30m
Deal found 9/2![Southwest logo]()
$397
This United Airlines deal was found by Cheapflights users on 9/5. 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.
Sat 10/311:30 am -
2 stops12h 28m
Sat 10/106:00 am -
1 stop6h 49m
Deal found 9/5![United Airlines logo]()
$454
This Delta deal was found by Cheapflights users on 9/6. 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 1/2011:35 am -
2 stops14h 08m
Sun 1/247:00 am -
2 stops14h 23m
Deal found 9/6![Delta logo]()
$454
This Delta deal was found by Cheapflights users on 9/6. 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.
Sat 10/176:20 am -
1 stop7h 46m
Sat 10/246:00 pm -
2 stops13h 09m
Deal found 9/6![Delta logo]()
$461
This United Airlines deal was found by Cheapflights users on 9/3. 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 1/286:15 am -
2 stops14h 32m
Mon 2/86:53 pm -
1 stop9h 38m
Deal found 9/3![United Airlines logo]()
$468
This Southwest deal was found by Cheapflights users on 9/1. 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 12/223:20 pm -
2 stops8h 35m
Tue 12/295:10 am -
2 stops14h 10m
Deal found 9/1![Southwest logo]()
$470
This United Airlines deal was found by Cheapflights users on 9/2. 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 9/175:05 pm -
1 stop7h 54m
Sat 9/266:00 am -
1 stop6h 49m
Deal found 9/2![United Airlines logo]()
$472
Last-minute flights from Raleigh to OntarioDiscover last-minute flight deals from Raleigh to Ontario. Data last updated September 6, 2026 and is based on user searches.
Discover last-minute flight deals from Raleigh to Ontario. Data last updated September 6, 2026 and is based on user searches.
This Expedia deal was found by Cheapflights users on 9/2. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/96:17 pm -
1 stop19h 13m
Sat 9/126:15 am -
1 stop27h 16m
Deal found 9/2![Frontier logo]()
$278
This CheapOair deal was found by Cheapflights users on 9/1. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/245:26 pm -
1 stop27h 22m
Wed 9/307:11 pm -
1 stop12h 59m
Deal found 9/1![Frontier logo]()
$248
This Frontier deal was found by Cheapflights users on 9/1. 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.
Thu 9/2411:55 am -
1 stop9h 44m
Thu 10/17:46 pm -
1 stop12h 24m
Deal found 9/1![Frontier logo]()
$283
This Frontier deal was found by Cheapflights users on 9/1. 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.
Fri 9/256:17 pm -
1 stop8h 30m
Wed 9/307:11 pm -
1 stop12h 59m
Deal found 9/1![Frontier logo]()
$254
This CheapOair deal was found by Cheapflights users on 9/1. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/256:17 pm -
1 stop8h 30m
Tue 9/2911:45 am -
1 stop26h 37m
Deal found 9/1![Frontier logo]()
$264
This Frontier deal was found by Cheapflights users on 9/3. 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 9/266:17 pm -
1 stop8h 30m
Wed 9/307:11 pm -
1 stop12h 59m
Deal found 9/3![Frontier logo]()
$238
This Frontier deal was found by Cheapflights users on 9/2. 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.
Fri 10/1611:56 am -
1 stop10h 12m
Fri 10/238:03 pm -
1 stop12h 08m
Deal found 9/2![Frontier logo]()
$270
This Priceline deal was found by Cheapflights users on 9/3. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/216:35 pm -
1 stop8h 15m
Sat 10/246:15 am -
1 stop7h 09m
Deal found 9/3![Frontier logo]()
$262
This Kiwi.com deal was found by Cheapflights users on 9/3. 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.
Tue 10/274:20 pm -
2 stops21h 15m
Tue 11/311:52 am -
1 stop26h 46m
Deal found 9/3![Frontier logo]()
$245
This Frontier deal was found by Cheapflights users on 9/2. 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 10/274:20 pm -
2 stops10h 31m
Wed 10/286:25 am -
1 stop8h 13m
Deal found 9/2![Frontier logo]()
$263
One-way flights from Raleigh to OntarioSearch for one-way flight options from Raleigh to Ontario. Find affordable one-way fares based on user searches. Data last updated September 6, 2026.
Search for one-way flight options from Raleigh to Ontario. Find affordable one-way fares based on user searches. Data last updated September 6, 2026.
This Super.com deal was found by Cheapflights users on 9/4. 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 9/306:17 pm -
1 stop8h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/4![Frontier logo]()
$110
This Booking.com deal was found by Cheapflights users on 9/2. 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.
Sat 10/36:17 pm -
1 stop8h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/2![Frontier logo]()
$112
This Super.com deal was found by Cheapflights users on 9/2. 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.
Sat 9/2612:21 pm -
1 stop7h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/2![Frontier logo]()
$118
This Frontier deal was found by Cheapflights users on 9/1. 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.
Thu 10/111:55 am -
1 stop9h 44m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/1![Frontier logo]()
$121
This Super.com deal was found by Cheapflights users on 9/3. 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.
Mon 10/56:17 pm -
1 stop19h 13m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![Frontier logo]()
$123
This Kiwi.com deal was found by Cheapflights users on 9/2. 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 10/71:56 pm -
2 stops12h 51m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/2![Frontier logo]()
$125
This Super.com deal was found by Cheapflights users on 9/2. 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.
Fri 10/167:37 pm -
1 stop17h 52m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/2![Frontier logo]()
$126
This Kiwi.com deal was found by Cheapflights users on 9/1. 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.
Fri 10/231:16 pm -
2 stops37h 34m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/1![Frontier logo]()
$136
This Frontier deal was found by Cheapflights users on 9/3. 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 10/313:55 pm -
2 stops10h 56m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![Frontier logo]()
$141
Find flight deals from Raleigh to Ontario
Discover tips and strategies to find the most affordable flight options for your journey from Raleigh (RDU) to Ontario (ONT). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated September 6, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $238 (Frontier) |
One-way from | $110 (Super.com) |
Popular in | July |
Cheapest in | January |
Average price | $546 |
Cheapflights Fare Finder
Customize your flight search to find flights from Raleigh to Ontario 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 7,457,451 searches. Data last updated September 6, 2026.
Use the filters below to find and compare flights from Raleigh to Ontario that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
RaleighOntario
RDU Raleigh-Durham - ONT Ontario
RDUONT
Raleigh-Durham
Mon 9/28
6:17 pm-11:47 pm
1 stop8h 30m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$118
RaleighOntario
RDU Raleigh-Durham - ONT Ontario
RDUONT
Raleigh-Durham
Sat 9/26
1:56 pm-11:47 pm
2 stops12h 51m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$151
RaleighOntario
RDU Raleigh-Durham - ONT Ontario
RDUONT
Raleigh-Durham
Thu 10/1
11:55 am-6:39 pm
1 stop9h 44m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$163
RaleighOntario
RDU Raleigh-Durham - ONT Ontario
RDUONT
Raleigh-Durham
Thu 12/17
6:00 am-11:30 am
1 stop8h 30m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$169
RaleighOntario
RDU Raleigh-Durham - ONT Ontario
RDUONT
Raleigh-Durham
Wed 9/30
6:35 am-6:16 pm
2 stops14h 41m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$188
RaleighOntario
RDU Raleigh-Durham - ONT Ontario
RDUONT
Raleigh-Durham
Sun 11/8
12:51 pm-7:08 pm
1 stop9h 17m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$191
Quickest round-trip
RaleighOntario
RDU Raleigh-Durham - ONT Ontario
RDUONT
Raleigh-Durham
Tue 9/22
12:21 pm-4:46 pm
1 stop7h 25m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$204
RaleighOntario
RDU Raleigh-Durham - ONT Ontario
RDUONT
Raleigh-Durham
Sun 9/13
11:55 am-6:39 pm
1 stop9h 44m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$210
RaleighOntario
RDU Raleigh-Durham - ONT Ontario
RDUONT
Raleigh-Durham
Sat 10/3
1:56 pm-7:04 am
2 stops20h 08m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$221
RaleighOntario
RDU Raleigh-Durham - ONT Ontario
RDUONT
Raleigh-Durham
Mon 10/5
5:06 pm-9:59 pm
1 stop7h 53m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$224
Showing 1-10 of 24 resultsSorted by cheapest first
Compare providers for flights from Raleigh to Ontario
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Raleigh to Ontario in September.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star |
- Most accurate provider: When it comes to deals on Raleigh-Ontario flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Raleigh-Ontario flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Raleigh-Ontario flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Raleigh-Ontario flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Raleigh-Ontario flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Raleigh to Ontario
Have a flexible travel schedule? Discover the best time to fly to Ontario from Raleigh with our price prediction graph.
RDU-ONT
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 Raleigh to Ontario
Prices
More
How far ahead should I book a flight from Raleigh to Ontario?
Booking 43 days in advance of your planned departure date is, on average, the best time to get cheap flights from Raleigh to Ontario. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
What is the cheapest month to book a flight from Raleigh to Ontario?
Currently, January is the cheapest month in which you can book a flight from Raleigh to Ontario (average of $268). Flying from Raleigh to Ontario in July is currently the most expensive (average of $550). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
How much does it cost to fly round-trip from Raleigh to Ontario?
Airfare is below average for this route at the moment.
Raleigh to Ontario flights typically cost between $378 and $715 in November.The cheapest round-trip price found within the last 5 days was $238 on Frontier (Nov 2-Nov 11).
What’s the top layover airport for flights from Raleigh to Ontario?
Share of 1-stop round-trip flights from Raleigh to Ontario chosen by Cheapflights users in the past 12 months, using the same layover each way.
Las Vegas (LAS) – chosen by Cheapflights users on 67% of 1-stop itineraries from Raleigh to Ontario on Cheapflights.
What’s the cheapest layover airport for flights from Raleigh to Ontario?
Average round-trip fare for 1-stop flights from Raleigh to Ontario, chosen by Cheapflights users in the past 12 months, with the same layover each way.
Las Vegas (LAS) is the most affordable 1-stop option, with an average round-trip price of $480.
What’s the fastest layover option from Raleigh to Ontario?
Shortest average travel time for 1-stop one-way flights from Raleigh to Ontario, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.
Flights via Las Vegas (LAS) have the shortest average one-way travel time for 1-stop routes: 7h 45m.
Which airport typically offers the quickest layover for flights from Raleigh to Ontario?
Average layover duration for 1-stop one-way flights from Raleigh to Ontario, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.
Flights via Charlotte (CLT) offer the fastest connection on this route, with an average layover time of 1h 15m.
Reviews of airlines servicing Ontario
Get insights into the airlines that provide service to Ontario. 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 Ontario. Reviews last updated September 6, 2026.
See what other customers who have flown with Southwest,Delta, andUnited Airlines from Raleigh to Ontario have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Comfort
8.0
Crew
8.6
Food
7.0
Overall
8.0
Entertainment
7.5
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Comfort
8.0
Crew
8.6
Food
7.0
Overall
8.0
Entertainment
7.5
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Comfort
8.0
Crew
8.6
Food
7.0
Overall
8.0
Entertainment
7.5
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Comfort
8.0
Crew
8.6
Food
7.0
Overall
8.0
Entertainment
7.5
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Comfort
8.0
Crew
8.6
Food
7.0
Overall
8.0
Entertainment
7.5
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Comfort
8.0
Crew
8.6
Food
7.0
Overall
8.0
Entertainment
7.5
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Related info for your journey
Find useful and relevant information for your journey from Raleigh to Ontario. 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 Raleigh to Ontario
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Other flights to Ontario
Explore flights to Ontario departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on September 6, 2026.
Raleigh and Ontario flights
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Top 5 airlines flying from Raleigh to Ontario
Discover the top 5 airlines that operate flights from Raleigh to Ontario. 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 7,457,451 searches. Data last updated September 6, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$165 | Average$272 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$266 | Average$486 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$285 | Average$342 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$296 | Average$418 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$314 | Average$474 | FlexibilityNo cancel fee | On-time63% |