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$129+ Cheap flights from Durham, NC to Ontario (ONT)

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 8/30. Fares are subject to change and may not be available on all flights or dates of travel.
RDU — ONT
Aug 5 — Aug 121
Tue 8/5
Tue 8/12
1 adult, Economy
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Cheapflights Tip: The best prices from Durham to Ontario are usually found in March or November, booked 47 days in advance, depart on a Monday or Wednesday and return on a Wednesday

Cheap flight deals from Durham to Ontario

Keep the following information in mind while searching for Durham to Ontario flight deals. Data was last updated July 31, 2025.

Round-trip from

$258
(Frontier)

One-way from

$129
(Frontier)

Popular in

December

Cheapest in

March

Average price

$372
From Durham to Ontario
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One-way flight from Durham to Ontario
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Highest demand for flights based on searches. 8% potential increase in price ($35 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($9 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 Durham to Ontario

Cheapest flights from Durham to Ontario
Explore the most affordable flight options available from Durham to Ontario. 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 7/30. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/97:30 amRDU - ONT
1 stop11h 50mFrontier
Wed 8/137:22 pmONT - RDU
1 stop8h 13mFrontier
Deal found 7/30$258
This American Airlines deal was found by Cheapflights users on 7/29. 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 9/65:16 pmRDU - ONT
1 stop7h 08mAmerican Airlines
Sat 9/131:10 pmONT - RDU
1 stop6h 26mAmerican Airlines
Deal found 7/29$277
This Alaska 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/117:36 amRDU - ONT
1 stop9h 36mAlaska Airlines
Mon 9/153:06 pmONT - RDU
1 stop11h 54mAlaska Airlines
Deal found 7/31$292
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/15:50 amRDU - ONT
1 stop8h 45mSouthwest
Mon 9/86:20 amONT - RDU
1 stop8h 35mSouthwest
Deal found 7/30$293
This Delta deal was found by Cheapflights users on 7/29. 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 9/131:52 pmRDU - ONT
1 stop8h 23mDelta
Sat 9/2011:55 amONT - RDU
1 stop6h 40mDelta
Deal found 7/29$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.
Wed 9/311:17 amRDU - ONT
1 stop13h 12mJetBlue
Sun 9/710:56 pmONT - RDU
1 stop8h 36mJetBlue
Deal found 7/30$327
This United Airlines deal was found by Cheapflights users on 7/29. 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.
Sun 12/146:36 amRDU - ONT
1 stop8h 42mUnited Airlines
Sat 1/245:40 amONT - RDU
2 stops10h 18mUnited Airlines
Deal found 7/29$331

Cheapflights Fare Finder

 
Customize your flight search to find flights from Durham to Ontario 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 Durham to Ontario that are best for you.

Fly from

Durham

Fly to

Ontario

Route

Depart

Return

Price

RaleighOntario

RDU - ONT

RDUONT

Raleigh-Durham

Sat 8/9

7:30 am-4:20 pm

1 stop11h 50m

Ontario

Wed 8/13

7:22 pm-6:35 am

1 stop8h 13m

$258

RaleighOntario

RDU - ONT

RDUONT

Raleigh-Durham

Sat 9/6

5:16 pm-9:24 pm

1 stop7h 08m

Ontario

Sat 9/13

1:10 pm-10:36 pm

1 stop6h 26m

$277

RaleighOntario

RDU - ONT

RDUONT

Raleigh-Durham

Thu 9/11

7:36 am-2:12 pm

1 stop9h 36m

Ontario

Mon 9/15

3:06 pm-6:00 am

1 stop11h 54m

$292

RaleighOntario

RDU - ONT

RDUONT

Raleigh-Durham

Mon 9/1

5:50 am-11:35 am

1 stop8h 45m

Ontario

Mon 9/8

6:20 am-5:55 pm

1 stop8h 35m

$293

RaleighOntario

RDU - ONT

RDUONT

Raleigh-Durham

Sat 9/13

1:52 pm-7:15 pm

1 stop8h 23m

Ontario

Sat 9/20

11:55 am-9:35 pm

1 stop6h 40m

$295

RaleighOntario

RDU - ONT

RDUONT

Raleigh-Durham

Wed 9/3

11:17 am-9:29 pm

1 stop13h 12m

Ontario

Sun 9/7

10:56 pm-10:32 am

1 stop8h 36m

$327

RaleighOntario

RDU - ONT

RDUONT

Raleigh-Durham

Sat 9/6

10:34 am-8:33 pm

2 stops12h 59m

Ontario

Sat 9/13

6:04 am-3:47 pm

1 stop6h 43m

$357

RaleighOntario

RDU - ONT

RDUONT

Raleigh-Durham

Sat 8/30

5:27 pm-11:50 pm

1 stop9h 23m

$129

RaleighOntario

RDU - ONT

RDUONT

Raleigh-Durham

Tue 10/7

5:39 pm-12:03 am

1 stop9h 24m

$173

RaleighOntario

RDU - ONT

RDUONT

Raleigh-Durham

Sat 9/6

8:40 am-12:32 pm

1 stop6h 52m

$190

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/29

Showing 1-10 of 12 results
1
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Best time to book a flight from Durham to Ontario

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

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

Use this chart to determine the optimal time to book a round-trip flight from Durham to Ontario. Price data was last updated on July 25, 2025.

The price you pay for your flight from Durham to Ontario may vary depending on when you book. For the best chance of a lower fare, look to book 47 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, August is the cheapest month in which you can book a flight from Durham to Ontario (average of $246). Flying from Durham to Ontario in March is currently the most expensive (average of $328). 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 DU8 to ONT?

Find hourly flight availability from Durham to Ontario. 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 Durham to Ontario as you normally would.

What is the cheapest day to fly from Durham to Ontario?

Use this chart to determine the cheapest time to fly round-trip from Durham to Ontario. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Durham to Ontario flight should consider departing on Tuesday evenings when fares are most often at their lowest. Saturday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing Ontario

Get insights into the airlines that provide service to Ontario. 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 Ontario. Reviews last updated July 31, 2025.
Peruse reviews from past customers who have flown with Alaska Airlines, Southwest, and Delta from Durham to Ontario 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

Comfort

7.8

Overall

8.0

Boarding

8.1

Crew

8.5

Entertainment

7.1

Food

7.1

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

Comfort

7.8

Overall

8.0

Boarding

8.1

Crew

8.5

Entertainment

7.1

Food

7.1

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

Comfort

7.8

Overall

8.0

Boarding

8.1

Crew

8.5

Entertainment

7.1

Food

7.1

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

Comfort

7.8

Overall

8.0

Boarding

8.1

Crew

8.5

Entertainment

7.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Hawaiian Airlines
7.8
Good
2,611 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Overall

8.0

Boarding

8.1

Crew

8.5

Entertainment

7.1

Food

7.1

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

Comfort

7.8

Overall

8.0

Boarding

8.1

Crew

8.5

Entertainment

7.1

Food

7.1

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 Durham to Ontario. 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 into for flights to Ontario from Durham?

    For a flight from Durham to Ontario, you will be flying into Ontario. Ontario (ONT) is just 3.1 mi from the center of the city. Ontario is the only Ontario airport and it handles 0 inbound flights from Durham per day. 5 airlines have flights to Ontario from Durham on a regular basis.

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

    The cheapest airline one-way is Frontier, with whom users have recently found tickets for as low as $129. However, be on the lookout for offers from Alaska Airlines and United Airlines, as they are both options that can get you from Durham to Ontario for a low price.

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

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

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

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

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

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

    Currently, August is the cheapest month in which you can book a flight from Durham to Ontario (average of $246). Flying from Durham to Ontario in March is currently the most expensive (average of $328). 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 Durham to Ontario

Discover the top 5 airlines that operate flights from Durham to Ontario. 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$148Average$260FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$308Average$535FlexibilityNo cancel feeOn-time71%
DeltaCheapest$308Average$461FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$324Average$452FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$333Average$497FlexibilityNo cancel feeOn-time69%

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