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Durham

$65+ Cheap flights from Ontario (ONT) to Durham, NC

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 2/2. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — RDU
Dec 2 — Dec 91
Tue 12/2
Tue 12/9
1 adult, Economy
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Find cheap flights from Ontario to Durham with Cheapflights

1. Tell us where you want to go

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Cheapflights Tip: The best prices from Ontario to Durham are usually found in August or September, booked 85 days in advance, depart on a Wednesday or Friday and return on a Monday

Cheap flight deals from Ontario to Durham

Keep the following information in mind while searching for Ontario to Durham flight deals. Data was last updated November 2, 2025.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$138
(Frontier)

One-way from

$65
(Priceline)

Popular in

November

Cheapest in

August

Average price

$616
Provider with most accurate pricing for Los Angeles-Raleigh-Durham flight deals.
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Provider most trusted by Cheapflights users for Los Angeles-Raleigh-Durham flights.
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From Ontario to Durham
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One-way flight from Ontario to Durham
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Highest demand for flights based on searches. 15% potential increase in price ($73 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($20 potential savings vs. average RT price).
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Average for round-trip flights in November 2025
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Find flight deals from Ontario to Durham

Cheapest flights from Ontario to Durham
Explore the most affordable flight options available from Ontario to Durham. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 2, 2025.

This CheapOair deal was found by Cheapflights users on 11/1. 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.
Sun 12/72:59 pmONT - RDU
1 stop25h 09mFrontier
Thu 12/116:26 pmRDU - ONT
1 stop22h 59mFrontier
Deal found 11/1$142
This Frontier deal was found by Cheapflights users on 10/31. 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 11/148:24 amONT - RDU
1 stop12h 31mFrontier
Sun 11/166:00 amRDU - ONT
1 stop11h 45mFrontier
Deal found 10/31$146
This Kiwi.com deal was found by Cheapflights users on 10/31. 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 12/47:33 pmONT - RDU
1 stop10h 40mFrontier
Tue 12/98:15 amRDU - ONT
2 stops53h 54mFrontier
Deal found 10/31$167
This CheapOair deal was found by Cheapflights users on 10/31. 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 11/137:22 amONT - RDU
1 stop13h 33mFrontier
Thu 11/208:30 pmRDU - ONT
1 stop22h 51mFrontier
Deal found 10/31$176
This Kiwi.com deal was found by Cheapflights users on 10/31. 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 12/47:33 pmONT - RDU
1 stop10h 40mFrontier
Mon 12/810:09 amRDU - ONT
2 stops14h 08mFrontier
Deal found 10/31$180
This Frontier deal was found by Cheapflights users on 10/31. 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 11/137:22 amONT - RDU
1 stop13h 33mFrontier
Sun 11/166:00 amRDU - ONT
1 stop11h 45mFrontier
Deal found 10/31$184
This Mytrip deal was found by Cheapflights users on 11/1. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/117:33 pmONT - RDU
1 stop10h 40mFrontier
Mon 12/1510:09 amRDU - ONT
1 stop10h 23mFrontier
Deal found 11/1$206
This CheapOair deal was found by Cheapflights users on 10/31. 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.
Mon 11/177:54 amONT - RDU
1 stop13h 01mFrontier
Sat 11/225:33 pmRDU - ONT
1 stop9h 24mFrontier
Deal found 10/31$211
This Kiwi.com deal was found by Cheapflights users on 10/30. 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 12/126:19 pmONT - RDU
1 stop14h 33mFrontier
Mon 1/121:14 pmRDU - ONT
2 stops28h 19mFrontier
Deal found 10/30$216
This CheapOair deal was found by Cheapflights users on 10/31. 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 12/117:33 pmONT - RDU
1 stop10h 40mFrontier
Sun 12/147:50 pmRDU - ONT
1 stop23h 43mFrontier
Deal found 10/31$218
This Mytrip deal was found by Cheapflights users on 10/30. 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 11/198:45 amONT - RDU
1 stop28h 46mFrontier
Sat 11/225:33 pmRDU - ONT
1 stop20h 55mFrontier
Deal found 10/30$220

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ontario to Durham 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 November 2, 2025.
Use the filters below to find and compare flights from Ontario to Durham that are best for you.

Fly from

Ontario

Fly to

Durham

Route

Depart

Return

Price

OntarioRaleigh

ONT - RDU

ONTRDU

Ontario

Thu 2/19

6:56 pm-9:44 am

1 stop11h 48m

Raleigh-Durham

Sun 2/22

10:44 am-6:01 pm

1 stop10h 17m

$211

OntarioRaleigh

ONT - RDU

ONTRDU

Ontario

Thu 12/4

7:33 pm-9:13 am

1 stop10h 40m

Raleigh-Durham

Mon 12/8

10:09 am-5:32 pm

1 stop10h 23m

$228

OntarioRaleigh

ONT - RDU

ONTRDU

Ontario

Fri 11/14

6:53 am-4:36 pm

1 stop6h 43m

Raleigh-Durham

Sun 11/16

5:51 pm-6:49 pm

1 stop27h 58m

$249

OntarioRaleigh

ONT - RDU

ONTRDU

Ontario

Thu 11/13

7:22 am-11:55 pm

1 stop13h 33m

Raleigh-Durham

Thu 11/27

5:20 pm-11:57 pm

1 stop9h 37m

$257

OntarioRaleigh

ONT - RDU

ONTRDU

Ontario

Thu 12/4

7:33 pm-5:08 pm

1 stop18h 35m

Raleigh-Durham

Tue 12/9

6:09 pm-11:19 am

1 stop20h 10m

$287

OntarioRaleigh

ONT - RDU

ONTRDU

Ontario

Thu 12/4

1:34 pm-10:45 pm

1 stop6h 11m

Raleigh-Durham

Tue 12/9

4:14 pm-8:42 pm

1 stop7h 28m

$287

OntarioRaleigh

ONT - RDU

ONTRDU

Ontario

Thu 12/4

4:49 pm-9:54 am

2 stops14h 05m

Raleigh-Durham

Mon 12/8

7:35 pm-11:58 pm

1 stop7h 23m

$302

OntarioRaleigh

ONT - RDU

ONTRDU

Ontario

Thu 12/25

6:45 am-6:41 pm

1 stop8h 56m

Raleigh-Durham

Wed 12/31

7:36 pm-11:59 pm

1 stop7h 23m

$317

OntarioRaleigh

ONT - RDU

ONTRDU

Ontario

Wed 12/17

5:05 am-5:08 pm

2 stops9h 03m

Raleigh-Durham

Tue 1/6

1:29 pm-9:58 pm

2 stops11h 29m

$333

OntarioRaleigh

ONT - RDU

ONTRDU

Ontario

Tue 11/25

12:58 am-4:38 pm

1 stop12h 40m

Raleigh-Durham

Sun 12/7

7:50 pm-4:33 pm

1 stop23h 43m

$342

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/2

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

Have a flexible travel schedule? Discover the best time to fly to Durham 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 Durham

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

Use this chart to determine the optimal time to book a round-trip flight from Ontario to Durham. Price data was last updated on October 31, 2025.

To ensure you get the cheapest price possible for a flight from Ontario to Durham, 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 Durham?

Currently, February is the cheapest month in which you can book a flight from Ontario to Durham (average of $126). Flying from Ontario to Durham in June is currently the most expensive (average of $233). 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 DU8?

Find hourly flight availability from Ontario to Durham. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 2, 2025.

When flying from Ontario to Durham, the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 37% versus a flight in the morning.

Reviews of airlines servicing Durham

Get insights into the airlines that provide service to Durham. 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 Durham. Reviews last updated November 2, 2025.
Peruse reviews from past customers who have flown with Southwest, Delta, and United Airlines from Ontario to Durham to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,241 reviews

Crew

8.6

Entertainment

7.5

Food

7.0

Overall

8.0

Boarding

8.1

Comfort

8.0

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
4,241 reviews
Southwest
8.0
Very good
4,241 reviews

Crew

8.6

Entertainment

7.5

Food

7.0

Overall

8.0

Boarding

8.1

Comfort

8.0

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
7.9
Good
7,997 reviews
Southwest
8.0
Very good
4,241 reviews

Crew

8.6

Entertainment

7.5

Food

7.0

Overall

8.0

Boarding

8.1

Comfort

8.0

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
8,994 reviews
Southwest
8.0
Very good
4,241 reviews

Crew

8.6

Entertainment

7.5

Food

7.0

Overall

8.0

Boarding

8.1

Comfort

8.0

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
11,033 reviews
Southwest
8.0
Very good
4,241 reviews

Crew

8.6

Entertainment

7.5

Food

7.0

Overall

8.0

Boarding

8.1

Comfort

8.0

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
3,120 reviews
Southwest
8.0
Very good
4,241 reviews

Crew

8.6

Entertainment

7.5

Food

7.0

Overall

8.0

Boarding

8.1

Comfort

8.0

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 Durham. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Ontario to Durham?

    Ontario (ONT) is the airport you will fly out of if you book a flight from Ontario to Durham. You should not have trouble finding flights to Durham from Ontario; the airport handles an average of 0 outbound flights to Durham per day. You should also have plenty of airline options to choose from since 5 airlines have flights from the Ontario airport to Durham. It is only a 3.1 mi journey to Ontario (ONT) from Ontario’s city center.

  • How long is the flight from Ontario to Durham?

    There are many flights that can get you from Ontario to Durham in 6h 43m. Fly via Frontier, American Airlines, or Alaska Airlines to get the fastest option. Ontario and Durham are separated by a distance of 2185 mi. This flight may include one or multiple stops.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Ontario to Durham 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 Durham?

    Currently, February is the cheapest month in which you can book a flight from Ontario to Durham (average of $126). Flying from Ontario to Durham in June is currently the most expensive (average of $233). 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

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Top 5 airlines flying from Ontario to Durham

Discover the top 5 airlines that operate flights from Ontario to Durham. 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 November 2, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$151Average$282FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$278Average$413FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$292Average$449FlexibilityNo cancel feeOn-time71%
DeltaCheapest$296Average$432FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$324Average$451FlexibilityNo cancel feeOn-time63%

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