$100+ Cheap flights from Raleigh to Ontario (RDU - ONT)
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 5/7. Fares are subject to change and may not be available on all flights or dates of travel.
RDU — ONT
May 22 — May 291
Round-trip
1 adult, Economy
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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 April 22, 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 April 22, 2026.
This Booking.com deal was found by Cheapflights users on 4/21. 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.
Tue 5/121:23 pm
RDU
- ONT
1 stop23h 42m
Frontier
Sat 5/235:59 pm
ONT
- RDU
1 stop16h 38m
Frontier
Deal found 4/21![Frontier logo]()
$172
This CheapOair deal was found by Cheapflights users on 4/19. 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.
Sun 5/39:49 pm
RDU
- ONT
1 stop12h 42m
Frontier
Sun 5/108:06 pm
ONT
- RDU
1 stop14h 31m
Frontier
Deal found 4/19![Frontier logo]()
$180
This Flightnetwork deal was found by Cheapflights users on 4/20. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/712:06 pm
RDU
- ONT
1 stop10h 05m
Frontier
Wed 5/1310:50 am
ONT
- RDU
1 stop22h 38m
Frontier
Deal found 4/20![Frontier logo]()
$186
This Frontier deal was found by Cheapflights users on 4/17. 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 5/2312:26 pm
RDU
- ONT
1 stop24h 39m
Frontier
Sat 5/3010:50 am
ONT
- RDU
1 stop21h 41m
Frontier
Deal found 4/17![Frontier logo]()
$190
This Booking.com deal was found by Cheapflights users on 4/17. 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.
Fri 5/2210:16 am
RDU
- ONT
1 stop24h 32m
Frontier
Sun 5/246:00 am
ONT
- RDU
1 stop26h 31m
Frontier
Deal found 4/17![Frontier logo]()
$198
This Expedia deal was found by Cheapflights users on 4/17. 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.
Sat 5/29:49 pm
RDU
- ONT
1 stop12h 37m
Frontier
Wed 5/68:06 pm
ONT
- RDU
1 stop14h 31m
Frontier
Deal found 4/17![Frontier logo]()
$200
This Booking.com deal was found by Cheapflights users on 4/19. 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 5/71:23 pm
RDU
- ONT
1 stop23h 42m
Frontier
Sat 5/910:50 am
ONT
- RDU
1 stop22h 38m
Frontier
Deal found 4/19![Frontier logo]()
$202
This Booking.com deal was found by Cheapflights users on 4/21. 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 5/2312:26 pm
RDU
- ONT
1 stop24h 39m
Frontier
Sun 5/318:06 pm
ONT
- RDU
1 stop14h 31m
Frontier
Deal found 4/21![Frontier logo]()
$203
This Expedia deal was found by Cheapflights users on 4/19. 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.
Thu 5/712:06 pm
RDU
- ONT
1 stop10h 05m
Frontier
Sun 5/246:00 am
ONT
- RDU
1 stop26h 31m
Frontier
Deal found 4/19![Frontier logo]()
$205
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 April 22, 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 April 22, 2026.
This Delta deal was found by Cheapflights users on 4/22. 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.
Fri 8/144:50 pm
RDU
- ONT
1 stop8h 06m
Delta
Tue 8/189:55 am
ONT
- RDU
2 stops10h 57m
Delta
Deal found 4/22![Delta logo]()
$323
This United Airlines deal was found by Cheapflights users on 4/21. 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 9/36:34 am
RDU
- ONT
1 stop8h 38m
United Airlines
Fri 9/115:45 am
ONT
- RDU
1 stop7h 00m
United Airlines
Deal found 4/21![United Airlines logo]()
$449
This Southwest deal was found by Cheapflights users on 4/22. 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 5/226:35 am
RDU
- ONT
2 stops14h 35m
Southwest
Sun 5/247:10 am
ONT
- RDU
1 stop7h 05m
Southwest
Deal found 4/22![Southwest logo]()
$452
This Alaska Airlines deal was found by Cheapflights users on 4/19. 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.
Fri 5/87:30 am
RDU
- ONT
1 stop10h 02m
Alaska Airlines
Tue 5/123:26 pm
ONT
- RDU
1 stop11h 44m
Alaska Airlines
Deal found 4/19![Alaska Airlines logo]()
$491
This KAYAK deal was found by Cheapflights users on 4/20. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/165:00 am
RDU
- ONT
1 stop8h 09m
American Airlines
Tue 5/1911:59 pm
ONT
- RDU
2 stops9h 20m
American Airlines
Deal found 4/20![American Airlines logo]()
$494
This Delta deal was found by Cheapflights users on 4/18. 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.
Sun 8/304:50 pm
RDU
- ONT
1 stop8h 06m
Delta
Thu 9/312:00 pm
ONT
- RDU
1 stop9h 27m
Delta
Deal found 4/18![Delta logo]()
$441
This Delta deal was found by Cheapflights users on 4/17. 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 9/56:35 am
RDU
- ONT
1 stop7h 29m
Delta
Mon 9/1410:59 pm
ONT
- RDU
1 stop6h 52m
Delta
Deal found 4/17![Delta logo]()
$441
This Delta deal was found by Cheapflights users on 4/17. 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.
Thu 5/215:20 am
RDU
- ONT
1 stop8h 37m
Delta
Sun 5/2410:00 pm
ONT
- RDU
1 stop7h 51m
Delta
Deal found 4/17![Delta logo]()
$448
This Delta deal was found by Cheapflights users on 4/17. 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.
Fri 7/315:10 pm
RDU
- ONT
1 stop7h 34m
Delta
Fri 8/1410:59 pm
ONT
- RDU
1 stop9h 18m
Delta
Deal found 4/17![Delta logo]()
$498
This Delta deal was found by Cheapflights users on 4/22. 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.
Fri 5/226:28 am
RDU
- ONT
1 stop7h 29m
Delta
Mon 5/2510:00 pm
ONT
- RDU
1 stop7h 51m
Delta
Deal found 4/22![Delta logo]()
$498
Last-minute flights from Raleigh to OntarioDiscover last-minute flight deals from Raleigh to Ontario. Data last updated April 22, 2026 and is based on user searches.
Discover last-minute flight deals from Raleigh to Ontario. Data last updated April 22, 2026 and is based on user searches.
This Expedia deal was found by Cheapflights users on 4/17. 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.
Sat 5/29:49 pm
RDU
- ONT
1 stop12h 37m
Frontier
Wed 5/68:06 pm
ONT
- RDU
1 stop14h 31m
Frontier
Deal found 4/17![Frontier logo]()
$200
This CheapOair deal was found by Cheapflights users on 4/19. 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.
Sun 5/39:49 pm
RDU
- ONT
1 stop12h 42m
Frontier
Sun 5/108:06 pm
ONT
- RDU
1 stop14h 31m
Frontier
Deal found 4/19![Frontier logo]()
$180
This Flightnetwork deal was found by Cheapflights users on 4/20. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/712:06 pm
RDU
- ONT
1 stop10h 05m
Frontier
Wed 5/1310:50 am
ONT
- RDU
1 stop22h 38m
Frontier
Deal found 4/20![Frontier logo]()
$186
This Booking.com deal was found by Cheapflights users on 4/19. 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 5/71:23 pm
RDU
- ONT
1 stop23h 42m
Frontier
Sat 5/910:50 am
ONT
- RDU
1 stop22h 38m
Frontier
Deal found 4/19![Frontier logo]()
$202
This Expedia deal was found by Cheapflights users on 4/19. 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.
Thu 5/712:06 pm
RDU
- ONT
1 stop10h 05m
Frontier
Sun 5/246:00 am
ONT
- RDU
1 stop26h 31m
Frontier
Deal found 4/19![Frontier logo]()
$205
This Booking.com deal was found by Cheapflights users on 4/21. 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.
Tue 5/121:23 pm
RDU
- ONT
1 stop23h 42m
Frontier
Sat 5/235:59 pm
ONT
- RDU
1 stop16h 38m
Frontier
Deal found 4/21![Frontier logo]()
$172
This Booking.com deal was found by Cheapflights users on 4/20. 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.
Fri 5/2210:16 am
RDU
- ONT
1 stop24h 32m
Frontier
Tue 5/268:06 pm
ONT
- RDU
1 stop14h 26m
Frontier
Deal found 4/20![Frontier logo]()
$198
This Frontier deal was found by Cheapflights users on 4/17. 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 5/2312:26 pm
RDU
- ONT
1 stop24h 39m
Frontier
Sat 5/3010:50 am
ONT
- RDU
1 stop21h 41m
Frontier
Deal found 4/17![Frontier logo]()
$190
This Booking.com deal was found by Cheapflights users on 4/21. 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 5/2312:26 pm
RDU
- ONT
1 stop24h 39m
Frontier
Sun 5/318:06 pm
ONT
- RDU
1 stop14h 31m
Frontier
Deal found 4/21![Frontier logo]()
$203
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 April 22, 2026.
Search for one-way flight options from Raleigh to Ontario. Find affordable one-way fares based on user searches. Data last updated April 22, 2026.
This CheapOair deal was found by Cheapflights users on 4/20. 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 5/712:06 pm
RDU
- ONT
1 stop10h 05m
Frontier
Deal found 4/20![Frontier logo]()
$100
This Super.com deal was found by Cheapflights users on 4/17. 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 5/29:49 pm
RDU
- ONT
1 stop12h 37m
Frontier
Deal found 4/17![Frontier logo]()
$105
This Expedia deal was found by Cheapflights users on 4/19. 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.
Sun 5/39:49 pm
RDU
- ONT
1 stop12h 42m
Frontier
Deal found 4/19![Frontier logo]()
$106
This Super.com deal was found by Cheapflights users on 4/21. 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.
Thu 5/2812:58 pm
RDU
- ONT
1 stop9h 13m
Frontier
Deal found 4/21![Frontier logo]()
$109
This Super.com deal was found by Cheapflights users on 4/17. 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 5/1810:16 am
RDU
- ONT
1 stop24h 19m
Frontier
Deal found 4/17![Frontier logo]()
$110
This Booking.com deal was found by Cheapflights users on 4/20. 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.
Fri 5/2210:16 am
RDU
- ONT
1 stop24h 32m
Frontier
Deal found 4/20![Frontier logo]()
$111
This Super.com deal was found by Cheapflights users on 4/19. 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 5/51:23 pm
RDU
- ONT
1 stop13h 26m
Frontier
Deal found 4/19![Frontier logo]()
$115
This CheapOair deal was found by Cheapflights users on 4/20. 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 5/810:16 am
RDU
- ONT
1 stop25h 04m
Frontier
Deal found 4/20![Frontier logo]()
$116
This Trip.com deal was found by Cheapflights users on 4/22. 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.
Sun 6/710:16 am
RDU
- ONT
1 stop23h 52m
Frontier
Deal found 4/22![Frontier logo]()
$119
This Kiwi.com deal was found by Cheapflights users on 4/18. 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.
Mon 5/410:51 am
RDU
- ONT
1 stop23h 44m
Frontier
Deal found 4/18![Frontier logo]()
$122
This Super.com deal was found by Cheapflights users on 4/20. 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 4/2710:51 am
RDU
- ONT
1 stop8h 47m
Frontier
Deal found 4/20![Frontier logo]()
$124
This Frontier deal was found by Cheapflights users on 4/21. 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 4/3010:51 am
RDU
- ONT
1 stop8h 57m
Frontier
Deal found 4/21![Frontier logo]()
$125
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 April 22, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $172 (Booking.com) |
One-way from | $100 (CheapOair) |
Popular in | February |
Cheapest in | January |
Average price | $392 |
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 2,558,603 searches. Data last updated April 22, 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 - ONT
RDUONT
Raleigh-Durham
Fri 8/14
4:50 pm-9:56 pm
1 stop8h 06m
Ontario
Tue 8/18
9:55 am-11:52 pm
2 stops10h 57m
$323
RaleighOntario
RDU - ONT
RDUONT
Raleigh-Durham
Sun 8/30
4:50 pm-9:56 pm
1 stop8h 06m
Ontario
Thu 9/3
12:00 pm-12:27 am
1 stop9h 27m
$441
Quickest round-trip
RaleighOntario
RDU - ONT
RDUONT
Raleigh-Durham
Sat 9/5
6:35 am-11:04 am
1 stop7h 29m
Ontario
Mon 9/14
10:59 pm-8:51 am
1 stop6h 52m
$441
RaleighOntario
RDU - ONT
RDUONT
Raleigh-Durham
Thu 5/21
5:20 am-10:57 am
1 stop8h 37m
Ontario
Sun 5/24
10:00 pm-8:51 am
1 stop7h 51m
$448
RaleighOntario
RDU - ONT
RDUONT
Raleigh-Durham
Thu 9/3
6:34 am-12:12 pm
1 stop8h 38m
Ontario
Fri 9/11
5:45 am-3:45 pm
1 stop7h 00m
$449
RaleighOntario
RDU - ONT
RDUONT
Raleigh-Durham
Fri 5/22
6:35 am-6:10 pm
2 stops14h 35m
Ontario
Sun 5/24
7:10 am-5:15 pm
1 stop7h 05m
$452
RaleighOntario
RDU - ONT
RDUONT
Raleigh-Durham
Fri 5/8
7:30 am-2:32 pm
1 stop10h 02m
Ontario
Tue 5/12
3:26 pm-6:10 am
1 stop11h 44m
$491
RaleighOntario
RDU - ONT
RDUONT
Raleigh-Durham
Sat 5/16
5:00 am-10:09 am
1 stop8h 09m
Ontario
Tue 5/19
11:59 pm-12:19 pm
2 stops9h 20m
$494
RaleighOntario
RDU - ONT
RDUONT
Raleigh-Durham
Fri 7/31
5:10 pm-9:44 pm
1 stop7h 34m
Ontario
Fri 8/14
10:59 pm-11:17 am
1 stop9h 18m
$498
RaleighOntario
RDU - ONT
RDUONT
Raleigh-Durham
Fri 5/22
6:28 am-10:57 am
1 stop7h 29m
Ontario
Mon 5/25
10:00 pm-8:51 am
1 stop7h 51m
$498
Showing 1-10 of 22 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 April.
| 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 Accuracy3 stars | 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?
Use this chart to determine the optimal time to book a round-trip flight from Raleigh to Ontario. Price data was last updated on April 17, 2026.
Booking 29 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 $253). Flying from Raleigh to Ontario in February is currently the most expensive (average of $505). 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?
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 April 22, 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
Entertainment
7.5
Overall
8.0
Boarding
8.1
Food
7.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Comfort
8.0
Crew
8.6
Entertainment
7.5
Overall
8.0
Boarding
8.1
Food
7.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Comfort
8.0
Crew
8.6
Entertainment
7.5
Overall
8.0
Boarding
8.1
Food
7.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Comfort
8.0
Crew
8.6
Entertainment
7.5
Overall
8.0
Boarding
8.1
Food
7.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Comfort
8.0
Crew
8.6
Entertainment
7.5
Overall
8.0
Boarding
8.1
Food
7.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Comfort
8.0
Crew
8.6
Entertainment
7.5
Overall
8.0
Boarding
8.1
Food
7.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
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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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 April 22, 2026.
Raleigh and Ontario flights
Browse other Raleigh and Ontario flight options. Last updated on April 22, 2026.
Other flights from Raleigh
Browse through other flights departing from Raleigh. Flights are based on user searches made on Cheapflights and were last updated on April 22, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
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 2,558,603 searches. Data last updated April 22, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$159 | Average$272 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$266 | Average$434 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$285 | Average$356 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$293 | Average$397 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$310 | Average$482 | FlexibilityNo cancel fee | On-time63% |