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$85+ Cheap flights from Ontario to Raleigh (ONT - RDU)

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 11/13. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — RDU
Oct 17 — Oct 241
Fri 10/17
Fri 10/24
1 adult, Economy
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Cheapflights Tip: The best prices from Ontario to Raleigh-Durham are usually found in August or July, booked 85 days in advance, depart on a Wednesday or Friday and return on a Monday

Cheap flight deals from Ontario to Raleigh

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Raleigh (RDU). 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 17, 2025.

Round-trip from

$158
(Mytrip)

One-way from

$85
(Trip.com)

Popular in

November

Cheapest in

August

Average price

$511
From Ontario to Raleigh-Durham
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One-way flight from Ontario to Raleigh-Durham
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Highest demand for flights based on searches. 12% potential increase in price ($60 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($19 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Ontario to Raleigh

Cheapest flights from Ontario to Raleigh
Explore the most affordable flight options available from Ontario to Raleigh. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 17, 2025.

This Mytrip deal was found by Cheapflights users on 9/17. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/1612:32 pmONT - RDU
1 stop22h 00mFrontier
Sun 10/196:42 pmRDU - ONT
1 stop24h 46mFrontier
Deal found 9/17$158
This Booking.com deal was found by Cheapflights users on 9/17. 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.
Thu 10/301:46 pmONT - RDU
1 stop28h 25mFrontier
Thu 11/65:51 pmRDU - ONT
1 stop27h 58mFrontier
Deal found 9/17$159
This Booking.com deal was found by Cheapflights users on 9/17. 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.
Thu 10/2312:32 pmONT - RDU
1 stop22h 00mFrontier
Sun 10/266:42 pmRDU - ONT
1 stop24h 46mFrontier
Deal found 9/17$160
This Booking.com deal was found by Cheapflights users on 9/16. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/257:04 amONT - RDU
1 stop7h 00mFrontier
Fri 10/315:21 pmRDU - ONT
1 stop9h 29mFrontier
Deal found 9/16$161
This Kiwi.com deal was found by Cheapflights users on 9/16. 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.
Sun 11/24:17 pmONT - RDU
1 stop28h 38mFrontier
Sat 11/86:00 amRDU - ONT
1 stop27h 22mFrontier
Deal found 9/16$173
This CheapOair deal was found by Cheapflights users on 9/15. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/77:23 pmONT - RDU
1 stop25h 32mFrontier
Sun 11/96:00 amRDU - ONT
1 stop28h 29mFrontier
Deal found 9/15$179
This Gotogate deal was found by Cheapflights users on 9/17. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/1011:53 amONT - RDU
1 stop26h 11mFrontier
Sun 10/126:42 pmRDU - ONT
1 stop24h 46mFrontier
Deal found 9/17$189
This Mytrip deal was found by Cheapflights users on 9/16. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/117:04 amONT - RDU
1 stop7h 00mFrontier
Sat 10/187:51 pmRDU - ONT
1 stop24h 58mFrontier
Deal found 9/16$190
This Booking.com deal was found by Cheapflights users on 9/16. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/212:28 pmONT - RDU
1 stop29h 02mFrontier
Mon 10/65:23 pmRDU - ONT
1 stop7h 50mFrontier
Deal found 9/16$191
This Frontier deal was found by Cheapflights users on 9/16. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/57:15 pmONT - RDU
1 stop11h 48mFrontier
Thu 10/1611:07 amRDU - ONT
1 stop7h 25mFrontier
Deal found 9/16$202
This Kiwi.com deal was found by Cheapflights users on 9/17. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/234:17 pmONT - RDU
1 stop15h 38mMultiple Airlines
Sat 10/255:10 pmRDU - ONT
1 stop17h 39mMultiple Airlines
Deal found 9/17$204

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ontario to Raleigh 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 September 17, 2025.
Use the filters below to find and compare flights from Ontario to Raleigh that are best for you.

Fly from

Ontario

Fly to

Raleigh

Route

Depart

Return

Price

OntarioRaleigh

ONT - RDU

ONTRDU

Ontario

Wed 10/22

11:48 am-11:48 pm

1 stop9h 00m

Raleigh-Durham

Sat 10/25

4:46 pm-9:20 pm

1 stop7h 34m

$297

OntarioRaleigh

ONT - RDU

ONTRDU

Ontario

Wed 10/22

11:48 am-11:48 pm

1 stop9h 00m

Raleigh-Durham

Tue 10/28

5:15 am-10:26 am

1 stop8h 11m

$297

OntarioRaleigh

ONT - RDU

ONTRDU

Ontario

Mon 10/20

10:00 pm-9:50 am

1 stop8h 50m

Raleigh-Durham

Tue 10/28

6:18 am-10:26 am

1 stop7h 08m

$297

OntarioRaleigh

ONT - RDU

ONTRDU

Ontario

Wed 10/22

11:48 am-11:48 pm

1 stop9h 00m

Raleigh-Durham

Thu 10/23

6:55 pm-11:39 pm

1 stop7h 44m

$297

OntarioRaleigh

ONT - RDU

ONTRDU

Ontario

Mon 10/20

10:00 pm-9:50 am

1 stop8h 50m

Raleigh-Durham

Wed 10/29

5:15 am-10:26 am

1 stop8h 11m

$297

OntarioRaleigh

ONT - RDU

ONTRDU

Ontario

Wed 10/15

9:36 am-9:53 pm

1 stop9h 17m

Raleigh-Durham

Tue 10/21

6:15 am-12:51 pm

2 stops9h 36m

$298

OntarioRaleigh

ONT - RDU

ONTRDU

Ontario

Fri 10/24

11:48 am-11:48 pm

1 stop9h 00m

Raleigh-Durham

Mon 10/27

2:46 pm-11:39 pm

2 stops11h 53m

$302

OntarioRaleigh

ONT - RDU

ONTRDU

Ontario

Sat 11/1

7:05 am-10:58 pm

2 stops12h 53m

Raleigh-Durham

Sat 11/8

11:33 am-9:20 pm

2 stops12h 47m

$307

OntarioRaleigh

ONT - RDU

ONTRDU

Ontario

Wed 10/15

12:00 pm-10:30 pm

1 stop7h 30m

Raleigh-Durham

Wed 10/22

6:10 am-12:20 pm

2 stops9h 10m

$310

OntarioRaleigh

ONT - RDU

ONTRDU

Ontario

Mon 11/17

10:25 pm-10:00 am

1 stop8h 35m

Raleigh-Durham

Thu 12/4

6:45 pm-11:59 pm

1 stop8h 14m

$324

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/15

Showing 1-10 of 22 results
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Best time to book a flight from Ontario to Raleigh

Have a flexible travel schedule? Discover the best time to fly to Raleigh from Ontario with our price prediction graph.
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 Raleigh

How far ahead should I book a flight from Ontario to Raleigh?

Use this chart to determine the optimal time to book a round-trip flight from Ontario to Raleigh. Price data was last updated on September 12, 2025.

To ensure you get the cheapest price possible for a flight from Ontario to Raleigh, you should look to book at least 84 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Ontario to Raleigh?

Currently, August is the cheapest month in which you can book a flight from Ontario to Raleigh (average of $206). Flying from Ontario to Raleigh in March is currently the most expensive (average of $293). 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.

What is the cheapest time of day to fly from ONT to RDU?

Find hourly flight availability from Ontario to Raleigh. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 17, 2025.

It’s optimal to fly from Ontario to Raleigh in the afternoon. By choosing this option you can save up to 20% on the cost of your flight, compared to a flight in the evening.

Reviews of airlines servicing Raleigh

Get insights into the airlines that provide service to Raleigh. 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 Raleigh. Reviews last updated September 17, 2025.
Read through reviews of airlines operating flights from Ontario to Raleigh, such as Southwest, Delta, and United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,242 reviews

Comfort

8.0

Crew

8.6

Food

7.0

Overall

8.0

Entertainment

7.5

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Southwest
8.0
Very good
4,242 reviews
Southwest
8.0
Very good
4,242 reviews

Comfort

8.0

Crew

8.6

Food

7.0

Overall

8.0

Entertainment

7.5

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Delta
8.0
Very good
7,961 reviews
Southwest
8.0
Very good
4,242 reviews

Comfort

8.0

Crew

8.6

Food

7.0

Overall

8.0

Entertainment

7.5

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
United Airlines
7.4
Good
8,926 reviews
Southwest
8.0
Very good
4,242 reviews

Comfort

8.0

Crew

8.6

Food

7.0

Overall

8.0

Entertainment

7.5

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,242 reviews

Comfort

8.0

Crew

8.6

Food

7.0

Overall

8.0

Entertainment

7.5

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Frontier
5.8
Fair
3,173 reviews
Southwest
8.0
Very good
4,242 reviews

Comfort

8.0

Crew

8.6

Food

7.0

Overall

8.0

Entertainment

7.5

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.

Related info for your journey

Find useful and relevant information for your journey from Ontario to Raleigh. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Ontario to Raleigh?

    For as low as $297, Delta can have you in Raleigh from Ontario in 9h. Ontario and Raleigh are separated by a distance of 2185 mi.

  • What are the cheapest airlines flying from Ontario to Raleigh round-trip?

    Frontier, at $158, was found to be the cheapest airline from Ontario to Raleigh.Alternate airlines to your destination round-trip include United Airlines and American Airlines. Frontier is priced at 62% lower than the current average price of a flight leaving 3 months from now.

  • Can I find deals for flights from Ontario to Raleigh that include hotel bookings?

    Yes. In addition to deals on Ontario to Raleigh flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Ontario to Raleigh?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ontario to Raleigh.

  • Can I find deals for business class flights from Ontario to Raleigh?

    Yes. Cheapflights offers flight deals from Ontario to Raleigh by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Ontario to Raleigh?

    Currently, August is the cheapest month in which you can book a flight from Ontario to Raleigh (average of $206). Flying from Ontario to Raleigh in March is currently the most expensive (average of $293). 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.

See more FAQs

Traveling to a place near Raleigh?

Book flights to Raleigh if you plan to visit one of these locations
Dunn
Rocky Mount
Smithfield
Cary
Garner
Chapel Hill
Goldsboro
Morrisville
Apex
Henderson
Wilson
Danville
Pinehurst
Wake Forest
South Hill
Holly Springs

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Top 5 airlines flying from Ontario to Raleigh

Discover the top 5 airlines that operate flights from Ontario to Raleigh. 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 September 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$158Average$280FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$278Average$408FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$292Average$416FlexibilityNo cancel feeOn-time71%
DeltaCheapest$306Average$416FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$327Average$451FlexibilityNo cancel feeOn-time63%

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