HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Raleigh

$81+ 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 10/18. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — RDU
Aug 25 — Sep 11
Mon 8/25
Mon 9/1
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Ontario to Raleigh 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 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 August 20, 2025.

Round-trip from

$158
(Mytrip)

One-way from

$81
(Priceline)

Popular in

November

Cheapest in

August

Average price

$329
From Ontario to Raleigh-Durham
Search Deals
One-way flight from Ontario to Raleigh-Durham
Search Deals
Highest demand for flights based on searches. 17% potential increase in price ($87 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($18 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in August 2025
Search Deals

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 August 20, 2025.

This Mytrip deal was found by Cheapflights users on 8/19. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/512:28 pmONT - RDU
1 stop29h 07mFrontier
Sat 10/257:51 pmRDU - ONT
1 stop24h 58mFrontier
Deal found 8/19$158
This Mytrip deal was found by Cheapflights users on 8/18. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/412:28 pmONT - RDU
1 stop29h 02mFrontier
Sun 9/710:53 amRDU - ONT
1 stop10h 22mFrontier
Deal found 8/18$159
This FlightHub deal was found by Cheapflights users on 8/18. 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 FlightHub 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 11/22:54 pmRDU - ONT
1 stop19h 35mFrontier
Deal found 8/18$176
This FlightHub deal was found by Cheapflights users on 8/18. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/306:53 amONT - RDU
1 stop6h 43mFrontier
Sun 11/22:54 pmRDU - ONT
1 stop19h 35mFrontier
Deal found 8/18$177
This FlightHub deal was found by Cheapflights users on 8/20. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/1912:49 pmONT - RDU
1 stop21h 43mFrontier
Thu 10/2311:07 amRDU - ONT
1 stop7h 25mFrontier
Deal found 8/20$181
This FlightHub deal was found by Cheapflights users on 8/19. 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 FlightHub 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 8/19$186
This Mytrip deal was found by Cheapflights users on 8/18. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1812:28 pmONT - RDU
1 stop29h 02mFrontier
Mon 9/225:23 pmRDU - ONT
1 stop29h 31mFrontier
Deal found 8/18$193
This Mytrip deal was found by Cheapflights users on 8/18. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/18:59 pmONT - RDU
1 stop16h 39mFrontier
Mon 10/65:23 pmRDU - ONT
1 stop7h 50mFrontier
Deal found 8/18$194
This Booking.com deal was found by Cheapflights users on 8/18. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/18:59 pmONT - RDU
1 stop16h 39mFrontier
Sat 10/257:51 pmRDU - ONT
1 stop24h 58mFrontier
Deal found 8/18$195

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 August 20, 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

Sun 10/5

12:28 pm-8:35 pm

1 stop29h 07m

Raleigh-Durham

Sat 10/25

7:51 pm-5:49 pm

1 stop24h 58m

$158

OntarioRaleigh

ONT - RDU

ONTRDU

Ontario

Thu 10/16

12:32 pm-1:32 pm

1 stop22h 00m

Raleigh-Durham

Sun 10/19

6:42 pm-4:28 pm

1 stop24h 46m

$159

OntarioRaleigh

ONT - RDU

ONTRDU

Ontario

Thu 9/25

12:28 pm-8:35 pm

1 stop29h 07m

Raleigh-Durham

Mon 9/29

5:23 pm-7:54 pm

1 stop29h 31m

$159

OntarioRaleigh

ONT - RDU

ONTRDU

Ontario

Thu 9/4

12:28 pm-8:30 pm

1 stop29h 02m

Raleigh-Durham

Mon 9/8

5:23 pm-7:54 pm

1 stop29h 31m

$159

OntarioRaleigh

ONT - RDU

ONTRDU

Ontario

Thu 10/9

12:32 pm-1:32 pm

1 stop22h 00m

Raleigh-Durham

Sat 10/11

7:51 pm-5:49 pm

1 stop24h 58m

$159

OntarioRaleigh

ONT - RDU

ONTRDU

Ontario

Sun 9/21

12:28 pm-8:30 pm

1 stop29h 02m

Raleigh-Durham

Thu 9/25

6:06 pm-6:35 pm

1 stop27h 29m

$159

OntarioRaleigh

ONT - RDU

ONTRDU

Ontario

Thu 9/18

12:28 pm-8:30 pm

1 stop29h 02m

Raleigh-Durham

Thu 9/25

6:06 pm-6:35 pm

1 stop27h 29m

$159

OntarioRaleigh

ONT - RDU

ONTRDU

Ontario

Sun 9/14

12:28 pm-8:35 pm

1 stop29h 07m

Raleigh-Durham

Thu 9/18

6:06 pm-6:35 pm

1 stop27h 29m

$159

OntarioRaleigh

ONT - RDU

ONTRDU

Ontario

Thu 9/4

12:28 pm-8:30 pm

1 stop29h 02m

Raleigh-Durham

Sun 9/7

10:53 am-6:15 pm

1 stop10h 22m

$159

OntarioRaleigh

ONT - RDU

ONTRDU

Ontario

Thu 11/6

6:53 am-4:36 pm

1 stop6h 43m

$84

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/18

Showing 1-10 of 18 results
1
2

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 August 8, 2025.

To ensure you get the cheapest price possible for a flight from Ontario to Raleigh, you should look to book at least 85 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 August 20, 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 August 20, 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
4,246 reviews

Overall

8.0

Comfort

8.0

Entertainment

7.5

Crew

8.6

Food

7.0

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
4,246 reviews
Southwest
8.0
Very good
4,246 reviews

Overall

8.0

Comfort

8.0

Entertainment

7.5

Crew

8.6

Food

7.0

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
7,982 reviews
Southwest
8.0
Very good
4,246 reviews

Overall

8.0

Comfort

8.0

Entertainment

7.5

Crew

8.6

Food

7.0

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
8,928 reviews
Southwest
8.0
Very good
4,246 reviews

Overall

8.0

Comfort

8.0

Entertainment

7.5

Crew

8.6

Food

7.0

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
4,246 reviews

Overall

8.0

Comfort

8.0

Entertainment

7.5

Crew

8.6

Food

7.0

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
3,207 reviews
Southwest
8.0
Very good
4,246 reviews

Overall

8.0

Comfort

8.0

Entertainment

7.5

Crew

8.6

Food

7.0

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 $158, Frontier can have you in Raleigh from Ontario in 29h 07m. 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 $151, was found to be the cheapest airline from Ontario to Raleigh.Alternate airlines to your destination round-trip include American Airlines and Delta. Frontier is priced at 63% 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
Cary
Rocky Mount
Garner
Smithfield
Chapel Hill
Goldsboro
Morrisville
Apex
Henderson
Wilson
Danville
Wake Forest
Pinehurst
South Hill
Holly Springs
Oxford

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Ontario to Raleigh

See prices for flight routes from nearby airports that may be better suited for you.
Los Angeles to Raleigh flights
Los Angeles to Charlotte flights
San Francisco to Raleigh flights
San Francisco to Charlotte flights
Sacramento to Raleigh flights
Ontario to Charlotte flights
Santa Ana to Charlotte flights
Santa Ana to Knoxville flights
Los Angeles to Knoxville flights
San Diego to Charlotte flights
Fresno to Raleigh flights
Las Vegas to Charlotte flights
San Francisco to Knoxville flights
Sacramento to Charlotte flights
Burbank to Charlotte flights
Los Angeles to Norfolk flights
Ontario to Knoxville flights
San Diego to Raleigh flights
San Francisco to Norfolk flights
San Diego to Norfolk flights
San Diego to Knoxville flights
Las Vegas to Raleigh flights
Ontario to Norfolk flights
Burbank to Raleigh flights
San Jose to Raleigh flights
Los Angeles to Asheville flights
San Francisco to Asheville flights
Oakland to Raleigh flights
Santa Ana to Raleigh flights
Los Angeles to Greensboro flights
Burbank to Knoxville flights
Los Angeles to Wilmington flights
Oakland to Charlotte flights
San Jose to Charlotte flights
San Jose to Knoxville flights
Long Beach to Charlotte flights
Los Angeles to Myrtle Beach flights
San Diego to Asheville flights
Sacramento to Knoxville flights
San Jose to Norfolk flights
San Francisco to Greensboro flights
San Francisco to Wilmington flights
Sacramento to Asheville flights
Las Vegas to Norfolk flights
Ontario to Asheville flights
San Diego to Jacksonville flights
Medford to Norfolk flights
Las Vegas to Knoxville flights
San Diego to Myrtle Beach flights

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 August 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$151Average$278FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$293Average$420FlexibilityNo cancel feeOn-time71%
DeltaCheapest$306Average$410FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$327Average$450FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$337Average$426FlexibilityNo cancel feeOn-time69%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.