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Durham

$126+ 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 9/14. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — RDU
Aug 5 — Aug 121
Tue 8/5
Tue 8/12
1 adult, Economy
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Cheapflights Tip: The best prices from Ontario to Durham are usually found in August or June, 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 July 31, 2025.

Round-trip from

$258
(Frontier)

One-way from

$126
(Trip.com)

Popular in

November

Cheapest in

August

Average price

$396
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. 16% potential increase in price ($83 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($18 potential savings vs. average RT price).
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Average for round-trip flights in July 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 July 31, 2025.

This Frontier deal was found by Cheapflights users on 7/31. 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 8/2212:59 amONT - RDU
1 stop12h 38mFrontier
Sat 8/305:27 pmRDU - ONT
1 stop9h 23mFrontier
Deal found 7/31$258
This American Airlines deal was found by Cheapflights users on 7/30. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/2711:59 pmONT - RDU
1 stop7h 52mAmerican Airlines
Wed 9/37:20 amRDU - ONT
1 stop7h 36mAmerican Airlines
Deal found 7/30$279
This Delta deal was found by Cheapflights users on 7/30. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/137:05 amONT - RDU
1 stop7h 46mDelta
Sat 9/201:52 pmRDU - ONT
1 stop8h 23mDelta
Deal found 7/30$295
This Priceline deal was found by Cheapflights users on 7/30. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/2610:56 pmONT - RDU
1 stop8h 36mJetBlue
Tue 9/3011:19 amRDU - ONT
1 stop13h 10mJetBlue
Deal found 7/30$337
This Southwest deal was found by Cheapflights users on 7/31. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/1512:00 pmONT - RDU
1 stop7h 30mSouthwest
Sun 10/198:55 amRDU - ONT
1 stop9h 55mSouthwest
Deal found 7/31$369
This United Airlines deal was found by Cheapflights users on 7/31. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/237:00 amONT - RDU
1 stop7h 04mUnited Airlines
Mon 9/17:00 amRDU - ONT
1 stop8h 13mUnited Airlines
Deal found 7/31$379

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 July 31, 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

Fri 8/22

12:59 am-4:37 pm

1 stop12h 38m

Raleigh-Durham

Sat 8/30

5:27 pm-11:50 pm

1 stop9h 23m

$258

OntarioRaleigh

ONT - RDU

ONTRDU

Ontario

Wed 8/27

11:59 pm-10:51 am

1 stop7h 52m

Raleigh-Durham

Wed 9/3

7:20 am-11:56 am

1 stop7h 36m

$279

OntarioRaleigh

ONT - RDU

ONTRDU

Ontario

Sat 9/13

7:05 am-5:51 pm

1 stop7h 46m

Raleigh-Durham

Sat 9/20

1:52 pm-7:15 pm

1 stop8h 23m

$295

OntarioRaleigh

ONT - RDU

ONTRDU

Ontario

Fri 9/26

10:56 pm-10:32 am

1 stop8h 36m

Raleigh-Durham

Tue 9/30

11:19 am-9:29 pm

1 stop13h 10m

$337

OntarioRaleigh

ONT - RDU

ONTRDU

Ontario

Wed 10/15

12:00 pm-10:30 pm

1 stop7h 30m

Raleigh-Durham

Sun 10/19

8:55 am-3:50 pm

1 stop9h 55m

$369

OntarioRaleigh

ONT - RDU

ONTRDU

Ontario

Tue 9/30

1:15 pm-10:50 pm

1 stop6h 35m

Raleigh-Durham

Sat 10/4

7:00 am-12:13 pm

1 stop8h 13m

$374

OntarioRaleigh

ONT - RDU

ONTRDU

Ontario

Sun 9/14

4:09 pm-10:46 am

1 stop15h 37m

$126

OntarioRaleigh

ONT - RDU

ONTRDU

Ontario

Wed 8/6

7:22 pm-6:35 am

1 stop8h 13m

$129

OntarioRaleigh

ONT - RDU

ONTRDU

Ontario

Tue 8/26

12:47 pm-12:38 am

1 stop8h 51m

$140

OntarioRaleigh

ONT - RDU

ONTRDU

Ontario

Wed 8/27

5:10 am-5:04 pm

2 stops8h 54m

$145

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/30

Showing 1-10 of 15 results
1
2

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 July 25, 2025.

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

Currently, August is the cheapest month in which you can book a flight from Ontario to Durham (average of $206). Flying from Ontario to Durham 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 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 July 31, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Ontario to Durham as you normally would.

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 July 31, 2025.
Peruse reviews from past customers who have flown with Alaska Airlines, Southwest, and Delta 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.
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Overall

8.0

Crew

8.5

Boarding

8.1

Entertainment

7.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Overall

8.0

Crew

8.5

Boarding

8.1

Entertainment

7.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Southwest
8.0
Very good
4,246 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Overall

8.0

Crew

8.5

Boarding

8.1

Entertainment

7.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,981 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Overall

8.0

Crew

8.5

Boarding

8.1

Entertainment

7.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,900 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Overall

8.0

Crew

8.5

Boarding

8.1

Entertainment

7.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Overall

8.0

Crew

8.5

Boarding

8.1

Entertainment

7.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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.

  • What are the cheapest airlines to fly from Ontario to Durham one-way?

    The cheapest airlines for a one-way flight from Ontario to Durham are Frontier ($129), American Airlines ($140), and United Airlines ($145).

  • 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, August is the cheapest month in which you can book a flight from Ontario to Durham (average of $206). Flying from Ontario to Durham 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

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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 July 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$151Average$259FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$308Average$461FlexibilityNo cancel feeOn-time71%
DeltaCheapest$308Average$444FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$327Average$450FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$337Average$446FlexibilityNo cancel feeOn-time69%

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