Durham

$80+ 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 2/25. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — RDU
Mar 7 — Mar 141
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Ontario to Durham with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap 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 February 5, 2026.

This Expedia deal was found by Cheapflights users on 2/3. 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.
Thu 2/262:08 pm
ONT
-
RDU
1 stop20h 43m
Frontier
Sat 3/76:43 pm
RDU
-
ONT
1 stop8h 16m
Frontier
Deal found 2/3$193
This Frontier deal was found by Cheapflights users on 2/4. 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 3/256:15 am
ONT
-
RDU
1 stop8h 33m
Frontier
Thu 4/2310:51 am
RDU
-
ONT
1 stop8h 47m
Frontier
Deal found 2/4$200
This Priceline deal was found by Cheapflights users on 2/3. 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.
Mon 2/236:10 am
ONT
-
RDU
1 stop7h 06m
Frontier
Mon 3/25:11 pm
RDU
-
ONT
1 stop9h 48m
Frontier
Deal found 2/3$205
This Frontier deal was found by Cheapflights users on 2/4. 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.
Thu 3/56:05 am
ONT
-
RDU
1 stop6h 55m
Frontier
Tue 3/106:43 pm
RDU
-
ONT
1 stop8h 16m
Frontier
Deal found 2/4$209
This Trip.com deal was found by Cheapflights users on 2/3. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/66:15 am
ONT
-
RDU
1 stop8h 33m
Frontier
Sat 3/76:43 pm
RDU
-
ONT
1 stop8h 16m
Frontier
Deal found 2/3$211
This Frontier deal was found by Cheapflights users on 2/1. 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.
Tue 3/106:15 am
ONT
-
RDU
1 stop8h 33m
Frontier
Mon 3/166:22 pm
RDU
-
ONT
1 stop8h 37m
Frontier
Deal found 2/1$219
This Frontier deal was found by Cheapflights users on 2/4. 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 3/186:15 am
ONT
-
RDU
1 stop8h 33m
Frontier
Tue 3/246:43 pm
RDU
-
ONT
1 stop8h 16m
Frontier
Deal found 2/4$221
This Booking.com deal was found by Cheapflights users on 2/3. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/234:22 pm
ONT
-
RDU
1 stop17h 51m
Frontier
Wed 3/256:43 pm
RDU
-
ONT
1 stop8h 16m
Frontier
Deal found 2/3$226
This Mytrip deal was found by Cheapflights users on 2/3. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/26:10 am
ONT
-
RDU
1 stop7h 06m
Frontier
Sat 3/76:43 pm
RDU
-
ONT
1 stop8h 16m
Frontier
Deal found 2/3$230
This Kiwi.com deal was found by Cheapflights users on 2/3. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/38:40 am
ONT
-
RDU
2 stops36h 31m
Frontier
Tue 3/106:43 pm
RDU
-
ONT
1 stop8h 16m
Frontier
Deal found 2/3$233
This Expedia deal was found by Cheapflights users on 2/3. 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.
Tue 3/312:02 pm
ONT
-
RDU
1 stop26h 49m
Multiple Airlines
Tue 3/106:43 pm
RDU
-
ONT
1 stop8h 16m
Multiple Airlines
Deal found 2/3$234

Find flight deals from Ontario to Durham

Keep the following information in mind while searching for Ontario to Durham flight deals. Data was last updated February 5, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$193
(Expedia)

One-way from

$80
(CheapOair)

Popular in

January

Cheapest in

February

Average price

$292
Provider with most accurate pricing for Los Angeles-Raleigh-Durham flight deals.
Provider most trusted by Cheapflights users for Los Angeles-Raleigh-Durham flights.
From Ontario to Durham
One-way flight from Ontario to Durham
Highest demand for flights based on searches. 11% potential increase in price ($50 potential increase over avg. RT price).
Cheapest flight prices on average. 5% potential price decrease ($21 potential savings vs. average RT price).
Average for round-trip flights in February 2026

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 February 5, 2026.
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

Tue 2/24

5:00 am-3:04 pm

1 stop7h 04m

Raleigh-Durham

Tue 3/3

4:47 pm-10:00 pm

1 stop8h 13m

$257

OntarioRaleigh

ONT - RDU

ONTRDU

Ontario

Sat 3/14

10:25 pm-9:06 am

1 stop7h 41m

Raleigh-Durham

Tue 3/17

6:15 am-11:47 am

1 stop8h 32m

$297

OntarioRaleigh

ONT - RDU

ONTRDU

Ontario

Mon 3/9

10:25 pm-9:06 am

1 stop7h 41m

Raleigh-Durham

Wed 3/18

6:15 am-11:47 am

1 stop8h 32m

$297

OntarioRaleigh

ONT - RDU

ONTRDU

Ontario

Tue 3/24

10:25 pm-10:14 am

1 stop8h 49m

Raleigh-Durham

Sat 4/25

2:28 pm-9:00 pm

1 stop9h 32m

$297

OntarioRaleigh

ONT - RDU

ONTRDU

Ontario

Mon 3/9

10:25 pm-9:06 am

1 stop7h 41m

Raleigh-Durham

Tue 3/17

6:15 am-11:47 am

1 stop8h 32m

$297

OntarioRaleigh

ONT - RDU

ONTRDU

Ontario

Tue 3/24

2:23 pm-3:17 pm

2 stops21h 54m

Raleigh-Durham

Mon 4/20

10:51 am-4:38 pm

1 stop8h 47m

$301

OntarioRaleigh

ONT - RDU

ONTRDU

Ontario

Fri 2/27

10:20 pm-9:55 am

1 stop8h 35m

Raleigh-Durham

Mon 3/2

2:57 pm-11:49 pm

2 stops11h 52m

$302

OntarioRaleigh

ONT - RDU

ONTRDU

Ontario

Wed 3/25

6:15 am-5:48 pm

1 stop8h 33m

Raleigh-Durham

Fri 4/24

4:07 pm-10:44 am

2 stops21h 37m

$303

OntarioRaleigh

ONT - RDU

ONTRDU

Ontario

Thu 3/12

6:15 am-5:48 pm

1 stop8h 33m

Raleigh-Durham

Fri 3/20

6:43 pm-11:59 pm

1 stop8h 16m

$309

OntarioRaleigh

ONT - RDU

ONTRDU

Ontario

Mon 3/30

4:22 pm-2:13 pm

1 stop18h 51m

$125

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/5

Showing 1-10 of 20 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 January 30, 2026.

To ensure you get the cheapest price possible for a flight from Ontario to Durham, you should look to book at least 37 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, March is the cheapest month in which you can book a flight from Ontario to Durham (average of $129). Flying from Ontario to Durham in June is currently the most expensive (average of $233). 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.

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 February 5, 2026.
Peruse reviews from past customers who have flown with Southwest, Delta, and United Airlines 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.

Comfort

8.0

Boarding

8.1

Overall

8.0

Crew

8.6

Entertainment

7.5

Food

7.0

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.

Comfort

8.0

Boarding

8.1

Overall

8.0

Crew

8.6

Entertainment

7.5

Food

7.0

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.

Comfort

8.0

Boarding

8.1

Overall

8.0

Crew

8.6

Entertainment

7.5

Food

7.0

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.

Comfort

8.0

Boarding

8.1

Overall

8.0

Crew

8.6

Entertainment

7.5

Food

7.0

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.

Comfort

8.0

Boarding

8.1

Overall

8.0

Crew

8.6

Entertainment

7.5

Food

7.0

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.

Comfort

8.0

Boarding

8.1

Overall

8.0

Crew

8.6

Entertainment

7.5

Food

7.0

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.

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.

  • How long is the flight from Ontario to Durham?

    There are many flights that can get you from Ontario to Durham in 7h 04m. Fly via United Airlines or Delta to get the fastest option. Ontario and Durham are separated by a distance of 2185 mi. This flight may include one or multiple stops.

  • 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 ($77), United Airlines ($118), and American Airlines ($143).

  • 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, March is the cheapest month in which you can book a flight from Ontario to Durham (average of $129). Flying from Ontario to Durham in June is currently the most expensive (average of $233). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Ontario to Durham

See prices for flight routes from nearby airports that may be better suited for you.

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 February 5, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$150Average$268FlexibilityNo cancel feeOn-time62%
DeltaCheapest$196Average$423FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$256Average$520FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$264Average$449FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$268Average$426FlexibilityNo cancel feeOn-time69%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.