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Durham

$91+ 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 4/8. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — RDU
Mar 13 — Mar 201
Thu 3/13
Thu 3/20
1 adult, Economy
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The best prices from Ontario to Durham are usually found in May or March, booked 67 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 March 8, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$170
(CheapOair)

One-way from

$91
(CheapOair)

Popular in

November

Cheapest in

May

Average price

$380
Provider with most accurate pricing for Los Angeles-Raleigh-Durham flight deals.
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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. 14% potential increase in price ($73 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 March 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 March 8, 2025.

This CheapOair deal was found by Cheapflights users on 3/7. 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.
Tue 4/112:59 amONT - RDU
1 stop12h 35mFrontier
Tue 4/85:25 pmRDU - ONT
1 stop9h 34mFrontier
Deal found 3/7$170
This Expedia deal was found by Cheapflights users on 3/7. 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.
Sat 4/2612:59 amONT - RDU
1 stop12h 50mMultiple Airlines
Tue 4/297:20 amRDU - ONT
1 stop16h 09mMultiple Airlines
Deal found 3/7$303
This Delta deal was found by Cheapflights users on 3/5. 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 4/166:00 amONT - RDU
1 stop8h 35mDelta
Wed 4/236:50 pmRDU - ONT
1 stop7h 51mDelta
Deal found 3/5$331
This United Airlines deal was found by Cheapflights users on 3/6. 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 4/91:35 pmONT - RDU
1 stop6h 36mUnited Airlines
Wed 4/166:05 amRDU - ONT
2 stops12h 12mUnited Airlines
Deal found 3/6$336
This Alaska Airlines deal was found by Cheapflights users on 3/7. 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.
Wed 4/234:29 pmONT - RDU
1 stop10h 31mAlaska Airlines
Wed 4/307:20 amRDU - ONT
1 stop11h 12mAlaska Airlines
Deal found 3/7$342
This American Airlines deal was found by Cheapflights users on 3/6. 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.
Fri 4/2510:40 pmONT - RDU
1 stop6h 31mAmerican Airlines
Wed 4/3012:49 pmRDU - ONT
2 stops8h 31mAmerican Airlines
Deal found 3/6$361
This Southwest deal was found by Cheapflights users on 3/7. 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.
Sun 4/2710:25 amONT - RDU
1 stop11h 05mSouthwest
Tue 4/2911:40 amRDU - ONT
1 stop7h 05mSouthwest
Deal found 3/7$379

Find flights from Ontario to Durham within your budget

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 March 8, 2025.

Fly from

Ontario

Fly to

Durham

Route

Depart

Return

Price

OntarioRaleigh

ONT - RDU

ONTRDU

Ontario

Tue 4/1

12:59 am-4:34 pm

1 stop12h 35m

Raleigh-Durham

Tue 4/8

5:25 pm-11:59 pm

1 stop9h 34m

$170

OntarioRaleigh

ONT - RDU

ONTRDU

Ontario

Sat 4/26

12:59 am-4:49 pm

1 stop12h 50m

Raleigh-Durham

Tue 4/29

7:20 am-8:29 pm

1 stop16h 09m

$303

OntarioRaleigh

ONT - RDU

ONTRDU

Ontario

Wed 4/16

6:00 am-5:35 pm

1 stop8h 35m

Raleigh-Durham

Wed 4/23

6:50 pm-11:41 pm

1 stop7h 51m

$331

OntarioRaleigh

ONT - RDU

ONTRDU

Ontario

Wed 4/9

1:35 pm-11:11 pm

1 stop6h 36m

Raleigh-Durham

Wed 4/16

6:05 am-3:17 pm

2 stops12h 12m

$336

OntarioRaleigh

ONT - RDU

ONTRDU

Ontario

Wed 4/23

4:29 pm-6:00 am

1 stop10h 31m

Raleigh-Durham

Wed 4/30

7:20 am-3:32 pm

1 stop11h 12m

$342

OntarioRaleigh

ONT - RDU

ONTRDU

Ontario

Fri 4/25

10:40 pm-8:11 am

1 stop6h 31m

Raleigh-Durham

Wed 4/30

12:49 pm-6:20 pm

2 stops8h 31m

$361

OntarioRaleigh

ONT - RDU

ONTRDU

Ontario

Sun 4/27

10:25 am-12:30 am

1 stop11h 05m

Raleigh-Durham

Tue 4/29

11:40 am-3:45 pm

1 stop7h 05m

$379

OntarioRaleigh

ONT - RDU

ONTRDU

Ontario

Tue 4/8

12:59 am-4:34 pm

1 stop12h 35m

$91

OntarioRaleigh

ONT - RDU

ONTRDU

Ontario

Wed 4/23

4:29 pm-6:00 am

1 stop10h 31m

$165

OntarioRaleigh

ONT - RDU

ONTRDU

Ontario

Wed 3/26

6:00 am-5:31 pm

1 stop8h 31m

$166

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/6

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.

Travel insights for flights from Ontario to Durham

Get recent, data-driven insights about flights from Ontario to Durham including ideal travel times, pricing trends, and more.

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 February 28, 2025.

To ensure you get the cheapest price possible for a flight from Ontario to Durham, you should look to book at least 67 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 $316). 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 March 8, 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.

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

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

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

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 March 8, 2025.
Read reviews from past customers who have flown Southwest, Alaska Airlines and Delta from Ontario to Durham. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,314 reviews

Crew

8.7

Entertainment

7.6

Food

7.1

Comfort

8.1

Overall

8.1

Boarding

8.2

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
4,314 reviews
Southwest
8.1
Very good
4,314 reviews

Crew

8.7

Entertainment

7.6

Food

7.1

Comfort

8.1

Overall

8.1

Boarding

8.2

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
9,714 reviews
Southwest
8.1
Very good
4,314 reviews

Crew

8.7

Entertainment

7.6

Food

7.1

Comfort

8.1

Overall

8.1

Boarding

8.2

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
8,024 reviews
Southwest
8.1
Very good
4,314 reviews

Crew

8.7

Entertainment

7.6

Food

7.1

Comfort

8.1

Overall

8.1

Boarding

8.2

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
2,318 reviews
Southwest
8.1
Very good
4,314 reviews

Crew

8.7

Entertainment

7.6

Food

7.1

Comfort

8.1

Overall

8.1

Boarding

8.2

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
8,649 reviews
Southwest
8.1
Very good
4,314 reviews

Crew

8.7

Entertainment

7.6

Food

7.1

Comfort

8.1

Overall

8.1

Boarding

8.2

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 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 ($91), American Airlines ($167), and Delta ($172).

  • 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 $316). 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 March 8, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$151Average$255FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$242Average$550FlexibilityNo cancel feeOn-time69%
DeltaCheapest$296Average$490FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$308Average$515FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$342Average$451FlexibilityNo cancel feeOn-time63%
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