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Durham

$116+ 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 7/4. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — RDU
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
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 June 12, 2025.

Round-trip from

$233
(Frontier)

One-way from

$116
(Trip.com)

Popular in

November

Cheapest in

August

Average price

$378
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 ($79 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 June 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 June 12, 2025.

This Frontier deal was found by Cheapflights users on 6/10. 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.
Wed 8/137:22 pmONT - RDU
1 stop8h 13mFrontier
Sat 8/235:27 pmRDU - ONT
1 stop9h 23mFrontier
Deal found 6/10$233
This Delta deal was found by Cheapflights users on 6/10. 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.
Wed 9/1710:59 pmONT - RDU
1 stop7h 51mDelta
Mon 9/226:30 pmRDU - ONT
1 stop7h 11mDelta
Deal found 6/10$297
This American Airlines deal was found by Cheapflights users on 6/11. 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.
Sat 8/1612:47 pmONT - RDU
2 stops8h 09mAmerican Airlines
Wed 8/206:00 amRDU - ONT
2 stops8h 32mAmerican Airlines
Deal found 6/11$307
This Southwest deal was found by Cheapflights users on 6/11. 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 8/136:20 amONT - RDU
2 stops8h 30mSouthwest
Thu 8/216:10 amRDU - ONT
2 stops9h 30mSouthwest
Deal found 6/11$347
This United Airlines deal was found by Cheapflights users on 6/11. 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.
Wed 7/26:28 pmONT - RDU
1 stop7h 47mUnited Airlines
Wed 7/95:16 pmRDU - ONT
1 stop7h 50mUnited Airlines
Deal found 6/11$434
This Alaska Airlines deal was found by Cheapflights users on 6/11. 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 9/267:10 amONT - RDU
2 stops19h 50mAlaska Airlines
Sat 10/45:39 pmRDU - ONT
1 stop9h 20mAlaska Airlines
Deal found 6/11$442

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 June 12, 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

Wed 8/13

7:22 pm-6:35 am

1 stop8h 13m

Raleigh-Durham

Sat 8/23

5:27 pm-11:50 pm

1 stop9h 23m

$233

OntarioRaleigh

ONT - RDU

ONTRDU

Ontario

Wed 9/17

10:59 pm-9:50 am

1 stop7h 51m

Raleigh-Durham

Mon 9/22

6:30 pm-10:41 pm

1 stop7h 11m

$297

OntarioRaleigh

ONT - RDU

ONTRDU

Ontario

Sat 8/16

12:47 pm-11:56 pm

2 stops8h 09m

Raleigh-Durham

Wed 8/20

6:00 am-11:32 am

2 stops8h 32m

$307

OntarioRaleigh

ONT - RDU

ONTRDU

Ontario

Wed 8/13

6:20 am-5:50 pm

2 stops8h 30m

Raleigh-Durham

Thu 8/21

6:10 am-12:40 pm

2 stops9h 30m

$347

OntarioRaleigh

ONT - RDU

ONTRDU

Ontario

Wed 7/2

6:28 pm-5:15 am

1 stop7h 47m

Raleigh-Durham

Wed 7/9

5:16 pm-10:06 pm

1 stop7h 50m

$434

OntarioRaleigh

ONT - RDU

ONTRDU

Ontario

Fri 9/26

7:10 am-6:00 am

2 stops19h 50m

Raleigh-Durham

Sat 10/4

5:39 pm-11:59 pm

1 stop9h 20m

$442

OntarioRaleigh

ONT - RDU

ONTRDU

Ontario

Fri 7/4

6:00 am-6:00 am

1 stop21h 00m

$116

OntarioRaleigh

ONT - RDU

ONTRDU

Ontario

Tue 9/30

1:15 pm-10:45 pm

1 stop6h 30m

$144

OntarioRaleigh

ONT - RDU

ONTRDU

Ontario

Tue 8/19

4:00 pm-6:00 am

1 stop11h 00m

$148

OntarioRaleigh

ONT - RDU

ONTRDU

Ontario

Sat 9/13

6:00 am-5:24 pm

1 stop8h 24m

$149

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

Showing 1-10 of 14 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 June 9, 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 $294). 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 June 12, 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.

Rainfall in Durham by month

Plan your trip to Durham by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Durham ranges from 2.9 - 4.7 inches per month. July is typically the wettest month, when rainfall can reach 4.7 in. April is typically the driest time to visit Durham when rainfall is around 2.9 in.

Temperature in Durham by month

Plan your trip to Durham by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Durham, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 41.0 F).

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 June 12, 2025.
Read reviews from past customers who have flown Alaska Airlines, Southwest and Delta from Ontario to Durham. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Boarding

8.1

Comfort

7.8

Overall

8.0

Entertainment

7.1

Crew

8.5

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

Boarding

8.1

Comfort

7.8

Overall

8.0

Entertainment

7.1

Crew

8.5

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
4,287 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Boarding

8.1

Comfort

7.8

Overall

8.0

Entertainment

7.1

Crew

8.5

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
7,950 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Boarding

8.1

Comfort

7.8

Overall

8.0

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Hawaiian Airlines
7.9
Good
2,494 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Boarding

8.1

Comfort

7.8

Overall

8.0

Entertainment

7.1

Crew

8.5

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
8,790 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Boarding

8.1

Comfort

7.8

Overall

8.0

Entertainment

7.1

Crew

8.5

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 ($116), Hawaiian Airlines ($144), 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 $294). 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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$150Average$278FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$242Average$446FlexibilityNo cancel feeOn-time69%
DeltaCheapest$308Average$447FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$308Average$458FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$342Average$451FlexibilityNo cancel feeOn-time63%

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