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$124+ 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 4/17. Fares are subject to change and may not be available on all flights or dates of travel.
RDU — ONT
Apr 2 — Apr 91
Wed 4/2
Wed 4/9
1 adult, Economy
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Cheapflights Tip: The best prices from Durham to Ontario are usually found in March or November, booked 23 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 March 28, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$248
(Frontier)

One-way from

$124
(CheapOair)

Popular in

December

Cheapest in

March

Average price

$350
Provider with most accurate pricing for Raleigh-Durham-Los Angeles flight deals.
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Provider most trusted by Cheapflights users for Raleigh-Durham-Los Angeles flights.
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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. 5% potential increase in price ($26 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($10 potential savings vs. average RT price).
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Average for round-trip flights in March 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 March 28, 2025.

This Frontier deal was found by Cheapflights users on 3/27. 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.
Mon 4/145:35 pmRDU - ONT
1 stop9h 24mFrontier
Thu 4/1712:59 amONT - RDU
1 stop12h 25mFrontier
Deal found 3/27$248
This Alaska Airlines deal was found by Cheapflights users on 3/27. 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 5/17:20 amRDU - ONT
1 stop11h 12mAlaska Airlines
Sat 5/34:29 pmONT - RDU
1 stop10h 31mAlaska Airlines
Deal found 3/27$296
This Expedia deal was found by Cheapflights users on 3/26. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/237:20 amRDU - ONT
1 stop11h 12mMultiple Airlines
Sun 4/278:44 amONT - RDU
1 stop9h 04mMultiple Airlines
Deal found 3/26$315
This Delta deal was found by Cheapflights users on 3/27. 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 4/167:20 amRDU - ONT
1 stop9h 35mDelta
Wed 4/1610:15 pmONT - RDU
1 stop8h 55mDelta
Deal found 3/27$343
This American Airlines deal was found by Cheapflights users on 3/26. 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 5/311:45 amRDU - ONT
1 stop7h 22mAmerican Airlines
Sat 5/1012:41 pmONT - RDU
1 stop6h 38mAmerican Airlines
Deal found 3/26$347
This United Airlines deal was found by Cheapflights users on 3/27. 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 5/31:18 pmRDU - ONT
2 stops10h 35mUnited Airlines
Tue 5/66:08 amONT - RDU
2 stops12h 21mUnited Airlines
Deal found 3/27$355
This Southwest deal was found by Cheapflights users on 3/27. 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 5/127:10 amRDU - ONT
1 stop12h 00mSouthwest
Mon 5/1912:05 pmONT - RDU
1 stop9h 10mSouthwest
Deal found 3/27$395

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 March 28, 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

Mon 4/14

5:35 pm-11:59 pm

1 stop9h 24m

Ontario

Thu 4/17

12:59 am-4:24 pm

1 stop12h 25m

$248

RaleighOntario

RDU - ONT

RDUONT

Raleigh-Durham

Thu 5/1

7:20 am-3:32 pm

1 stop11h 12m

Ontario

Sat 5/3

4:29 pm-6:00 am

1 stop10h 31m

$296

RaleighOntario

RDU - ONT

RDUONT

Raleigh-Durham

Wed 4/23

7:20 am-3:32 pm

1 stop11h 12m

Ontario

Sun 4/27

8:44 am-8:48 pm

1 stop9h 04m

$315

RaleighOntario

RDU - ONT

RDUONT

Raleigh-Durham

Wed 4/16

7:20 am-1:55 pm

1 stop9h 35m

Ontario

Wed 4/16

10:15 pm-10:10 am

1 stop8h 55m

$343

RaleighOntario

RDU - ONT

RDUONT

Raleigh-Durham

Sat 5/3

4:15 pm-8:53 pm

1 stop7h 38m

Ontario

Tue 5/6

6:00 am-11:16 pm

2 stops14h 16m

$350

RaleighOntario

RDU - ONT

RDUONT

Raleigh-Durham

Wed 4/23

12:49 pm-6:20 pm

2 stops8h 31m

Ontario

Sun 4/27

10:40 pm-8:11 am

1 stop6h 31m

$385

RaleighOntario

RDU - ONT

RDUONT

Raleigh-Durham

Mon 5/12

7:10 am-4:10 pm

1 stop12h 00m

Ontario

Mon 5/19

12:05 pm-12:15 am

1 stop9h 10m

$395

RaleighOntario

RDU - ONT

RDUONT

Raleigh-Durham

Thu 4/17

7:44 pm-11:59 pm

1 stop7h 15m

$124

RaleighOntario

RDU - ONT

RDUONT

Raleigh-Durham

Wed 4/23

7:20 am-3:32 pm

1 stop11h 12m

$171

RaleighOntario

RDU - ONT

RDUONT

Raleigh-Durham

Tue 5/20

6:55 pm-11:42 pm

1 stop7h 47m

$172

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/28

Showing 1-10 of 14 results
1
2

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 March 21, 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 23 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 $326). 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 March 28, 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 May 26, 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.

Rainfall in Ontario by month

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

In terms of precipitation, rainfall in Ontario ranges from 0.1 - 3.4 inches per month. February is typically the wettest month, when rainfall can reach 3.4 in. June is typically the driest time to visit Ontario when rainfall is around 0.1 in.

Temperature in Ontario by month

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

If weather is an important factor for your trip to Ontario, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 78.8 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 53.6 F).

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 March 28, 2025.
Read reviews from past customers who have flown Southwest, Alaska Airlines and Delta from Durham to Ontario. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,273 reviews

Crew

8.6

Boarding

8.2

Overall

8.1

Food

7.1

Comfort

8.1

Entertainment

7.6

Reviews

1 / 20
10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.
Southwest
8.1
Very good
4,273 reviews
Southwest
8.1
Very good
4,273 reviews

Crew

8.6

Boarding

8.2

Overall

8.1

Food

7.1

Comfort

8.1

Entertainment

7.6

Reviews

1 / 20
10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.
Alaska Airlines
8.0
Very good
9,798 reviews
Southwest
8.1
Very good
4,273 reviews

Crew

8.6

Boarding

8.2

Overall

8.1

Food

7.1

Comfort

8.1

Entertainment

7.6

Reviews

1 / 20
10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.
Delta
8.0
Very good
7,896 reviews
Southwest
8.1
Very good
4,273 reviews

Crew

8.6

Boarding

8.2

Overall

8.1

Food

7.1

Comfort

8.1

Entertainment

7.6

Reviews

1 / 20
10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.
Hawaiian Airlines
7.9
Good
2,336 reviews
Southwest
8.1
Very good
4,273 reviews

Crew

8.6

Boarding

8.2

Overall

8.1

Food

7.1

Comfort

8.1

Entertainment

7.6

Reviews

1 / 20
10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.
United Airlines
7.4
Good
8,603 reviews
Southwest
8.1
Very good
4,273 reviews

Crew

8.6

Boarding

8.2

Overall

8.1

Food

7.1

Comfort

8.1

Entertainment

7.6

Reviews

1 / 20
10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.

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. 6 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 $124. However, be on the lookout for offers from Hawaiian Airlines and Delta, 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 $326). 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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Alternative routes for Durham to Ontario

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Top 6 airlines flying from Durham to Ontario

Discover the top 6 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 March 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$148Average$262FlexibilityNo cancel feeOn-time62%
Breeze AirwaysCheapest$204Average$300FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$268Average$508FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$275Average$490FlexibilityNo cancel feeOn-time69%
DeltaCheapest$296Average$479FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$326Average$452FlexibilityNo cancel feeOn-time63%
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