$74+ 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 2/28. Fares are subject to change and may not be available on all flights or dates of travel.
RDU — ONT
Mar 6 — Mar 131
1 adult, Economy
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Cheapest flights from Durham to OntarioExplore 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 February 4, 2026.
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 February 4, 2026.
This Gotogate deal was found by Cheapflights users on 2/2. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/215:11 pm
RDU
- ONT
1 stop9h 48m
Frontier
Wed 2/258:40 am
ONT
- RDU
1 stop28h 20m
Frontier
Deal found 2/2![Frontier logo]()
$174
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.
Thu 3/54:55 pm
RDU
- ONT
1 stop10h 04m
Frontier
Sat 3/76:15 am
ONT
- RDU
1 stop8h 33m
Frontier
Deal found 2/3![Frontier logo]()
$187
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 3/25:11 pm
RDU
- ONT
1 stop9h 48m
Frontier
Sat 3/76:15 am
ONT
- RDU
1 stop8h 33m
Frontier
Deal found 2/3![Frontier logo]()
$193
This Mytrip deal was found by Cheapflights users on 2/2. 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 3/25:11 pm
RDU
- ONT
1 stop9h 48m
Frontier
Mon 3/94:22 pm
ONT
- RDU
1 stop17h 41m
Frontier
Deal found 2/2![Frontier logo]()
$199
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.
Tue 4/145:55 pm
RDU
- ONT
1 stop9h 00m
Frontier
Thu 4/238:26 am
ONT
- RDU
1 stop8h 44m
Frontier
Deal found 2/4![Frontier logo]()
$200
This Gotogate deal was found by Cheapflights users on 2/2. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/54:55 pm
RDU
- ONT
1 stop10h 04m
Frontier
Wed 3/116:15 am
ONT
- RDU
1 stop8h 33m
Frontier
Deal found 2/2![Frontier logo]()
$208
This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/76:43 pm
RDU
- ONT
1 stop8h 16m
Frontier
Wed 3/116:15 am
ONT
- RDU
1 stop8h 33m
Frontier
Deal found 2/3![Frontier logo]()
$209
This CheapOair 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/225:55 pm
RDU
- ONT
1 stop9h 00m
Frontier
Fri 4/2412:59 am
ONT
- RDU
1 stop17h 05m
Frontier
Deal found 2/4![Frontier logo]()
$211
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.
Sat 2/286:10 am
RDU
- ONT
2 stops28h 49m
Frontier
Sat 3/76:15 am
ONT
- RDU
1 stop8h 33m
Frontier
Deal found 2/3![Frontier logo]()
$214
This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/236:22 pm
RDU
- ONT
1 stop8h 37m
Frontier
Sat 4/117:40 pm
ONT
- RDU
1 stop10h 27m
Frontier
Deal found 2/3![Frontier logo]()
$219
Best flights from Durham to OntarioDiscover carefully curated flight deals from Durham to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated February 4, 2026.
Discover carefully curated flight deals from Durham to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated February 4, 2026.
This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/246:43 pm
RDU
- ONT
1 stop8h 16m
Frontier
Sun 4/127:40 pm
ONT
- RDU
1 stop12h 32m
Frontier
Deal found 2/3![Frontier logo]()
$235
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/33:18 pm
RDU
- ONT
1 stop8h 47m
Delta
Thu 3/125:09 pm
ONT
- RDU
2 stops14h 05m
Delta
Deal found 2/3![Delta logo]()
$302
This Alaska Airlines 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/247:30 am
RDU
- ONT
1 stop10h 02m
Alaska Airlines
Wed 4/293:26 pm
ONT
- RDU
1 stop11h 44m
Alaska Airlines
Deal found 2/4![Alaska Airlines logo]()
$329
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.
Fri 2/2711:13 am
RDU
- ONT
1 stop12h 35m
Frontier
Sat 3/76:15 am
ONT
- RDU
1 stop8h 33m
Frontier
Deal found 2/4![Frontier logo]()
$244
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/34:20 pm
RDU
- ONT
1 stop7h 45m
Delta
Tue 3/1010:25 pm
ONT
- RDU
2 stops14h 13m
Delta
Deal found 2/3![Delta logo]()
$302
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.
Sun 3/810:07 pm
RDU
- ONT
1 stop28h 52m
Frontier
Thu 3/126:15 am
ONT
- RDU
1 stop8h 33m
Frontier
Deal found 2/3![Frontier logo]()
$284
This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/2011:13 am
RDU
- ONT
1 stop12h 35m
Frontier
Sun 2/226:10 am
ONT
- RDU
1 stop9h 43m
Frontier
Deal found 2/3![Frontier logo]()
$315
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/257:10 am
RDU
- ONT
1 stop8h 13m
Delta
Wed 4/810:25 pm
ONT
- RDU
1 stop7h 41m
Delta
Deal found 2/3![Delta logo]()
$348
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/257:10 am
RDU
- ONT
1 stop8h 13m
Delta
Tue 4/710:25 pm
ONT
- RDU
1 stop8h 49m
Delta
Deal found 2/3![Delta logo]()
$348
This Frontier deal was found by Cheapflights users on 2/2. 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 3/196:43 pm
RDU
- ONT
1 stop8h 16m
Frontier
Tue 3/246:15 am
ONT
- RDU
1 stop8h 33m
Frontier
Deal found 2/2![Frontier logo]()
$330
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/77:36 am
RDU
- ONT
1 stop9h 18m
Delta
Sat 3/710:20 pm
ONT
- RDU
1 stop7h 54m
Delta
Deal found 2/3![Delta logo]()
$348
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/247:10 am
RDU
- ONT
1 stop8h 13m
Delta
Wed 4/810:25 pm
ONT
- RDU
1 stop8h 49m
Delta
Deal found 2/3![Delta logo]()
$348
Last-minute flights from Durham to OntarioDiscover last-minute flight deals from Durham to Ontario. Data last updated February 4, 2026 and is based on user searches.
Discover last-minute flight deals from Durham to Ontario. Data last updated February 4, 2026 and is based on user searches.
This Gotogate deal was found by Cheapflights users on 2/2. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/215:11 pm
RDU
- ONT
1 stop9h 48m
Frontier
Wed 2/258:40 am
ONT
- RDU
1 stop28h 20m
Frontier
Deal found 2/2![Frontier logo]()
$174
This Gotogate 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/235:11 pm
RDU
- ONT
1 stop9h 48m
Frontier
Thu 2/262:08 pm
ONT
- RDU
1 stop20h 43m
Frontier
Deal found 2/4![Frontier logo]()
$205
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/264:55 pm
RDU
- ONT
1 stop10h 04m
Frontier
Thu 3/126:15 am
ONT
- RDU
1 stop8h 33m
Frontier
Deal found 2/4![Frontier logo]()
$203
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/25:11 pm
RDU
- ONT
1 stop9h 48m
Frontier
Sat 3/76:15 am
ONT
- RDU
1 stop8h 33m
Frontier
Deal found 2/4![Frontier logo]()
$193
This Mytrip deal was found by Cheapflights users on 2/2. 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 3/25:11 pm
RDU
- ONT
1 stop9h 48m
Frontier
Mon 3/94:22 pm
ONT
- RDU
1 stop17h 41m
Frontier
Deal found 2/2![Frontier logo]()
$199
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.
Thu 3/54:55 pm
RDU
- ONT
1 stop10h 04m
Frontier
Sat 3/76:15 am
ONT
- RDU
1 stop8h 33m
Frontier
Deal found 2/3![Frontier logo]()
$187
This Gotogate deal was found by Cheapflights users on 2/2. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/54:55 pm
RDU
- ONT
1 stop10h 04m
Frontier
Wed 3/116:15 am
ONT
- RDU
1 stop8h 33m
Frontier
Deal found 2/2![Frontier logo]()
$208
This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/76:43 pm
RDU
- ONT
1 stop8h 16m
Frontier
Tue 3/106:15 am
ONT
- RDU
1 stop8h 33m
Frontier
Deal found 2/3![Frontier logo]()
$209
This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/246:43 pm
RDU
- ONT
1 stop8h 16m
Frontier
Sat 4/117:40 pm
ONT
- RDU
1 stop10h 27m
Frontier
Deal found 2/3![Frontier logo]()
$200
One-way flights from Durham to OntarioSearch for one-way flight options from Durham to Ontario. Find affordable one-way fares based on user searches. Data last updated February 4, 2026.
Search for one-way flight options from Durham to Ontario. Find affordable one-way fares based on user searches. Data last updated February 4, 2026.
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/285:11 pm
RDU
- ONT
1 stop9h 48m
Frontier
Deal found 2/4![Frontier logo]()
$74
This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/25:11 pm
RDU
- ONT
1 stop9h 48m
Frontier
Deal found 2/3![Frontier logo]()
$84
This Super.com 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/246:43 pm
RDU
- ONT
1 stop8h 16m
Frontier
Deal found 2/4![Frontier logo]()
$99
This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/215:11 pm
RDU
- ONT
1 stop9h 48m
Frontier
Deal found 2/3![Frontier logo]()
$100
This Trip.com deal was found by Cheapflights users on 2/2. 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.
Mon 4/2010:51 am
RDU
- ONT
1 stop8h 47m
Frontier
Deal found 2/2![Frontier logo]()
$103
This Super.com deal was found by Cheapflights users on 2/2. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/1910:47 am
RDU
- ONT
1 stop28h 36m
Frontier
Deal found 2/2![Frontier logo]()
$104
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.
Wed 3/46:25 am
RDU
- ONT
2 stops30h 09m
Frontier
Deal found 2/3![Frontier logo]()
$106
This Super.com 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/76:43 pm
RDU
- ONT
1 stop8h 16m
Frontier
Deal found 2/4![Frontier logo]()
$108
This Mytrip deal was found by Cheapflights users on 2/2. 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.
Thu 3/54:55 pm
RDU
- ONT
1 stop10h 04m
Frontier
Deal found 2/2![Frontier logo]()
$109
This Trip.com deal was found by Cheapflights users on 2/2. 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.
Thu 4/2310:51 am
RDU
- ONT
1 stop8h 47m
Frontier
Deal found 2/2![Frontier logo]()
$115
This Super.com deal was found by Cheapflights users on 2/2. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/145:11 pm
RDU
- ONT
1 stop9h 48m
Frontier
Deal found 2/2![Frontier logo]()
$117
Find flight deals from Durham to Ontario
Keep the following information in mind while searching for Durham to Ontario flight deals. Data was last updated February 4, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $174 (Gotogate) |
One-way from | $74 (Mytrip) |
Popular in | February |
Cheapest in | January |
Average price | $497 |
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 February 4, 2026.
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
Tue 3/24
6:43 pm-11:59 pm
1 stop8h 16m
Ontario
Sun 4/12
7:40 pm-11:12 am
1 stop12h 32m
$235
RaleighOntario
RDU - ONT
RDUONT
Raleigh-Durham
Fri 2/27
11:13 am-8:48 pm
1 stop12h 35m
Ontario
Sat 3/7
6:15 am-5:48 pm
1 stop8h 33m
$244
RaleighOntario
RDU - ONT
RDUONT
Raleigh-Durham
Sun 3/8
10:07 pm-11:59 pm
1 stop28h 52m
Ontario
Thu 3/12
6:15 am-5:48 pm
1 stop8h 33m
$284
RaleighOntario
RDU - ONT
RDUONT
Raleigh-Durham
Tue 3/3
3:18 pm-9:05 pm
1 stop8h 47m
Ontario
Thu 3/12
5:09 pm-10:14 am
2 stops14h 05m
$302
RaleighOntario
RDU - ONT
RDUONT
Raleigh-Durham
Tue 3/3
4:20 pm-9:05 pm
1 stop7h 45m
Ontario
Tue 3/10
10:25 pm-3:38 pm
2 stops14h 13m
$302
RaleighOntario
RDU - ONT
RDUONT
Raleigh-Durham
Fri 2/20
11:13 am-8:48 pm
1 stop12h 35m
Ontario
Sun 2/22
6:10 am-6:53 pm
1 stop9h 43m
$315
RaleighOntario
RDU - ONT
RDUONT
Raleigh-Durham
Fri 4/24
7:30 am-2:32 pm
1 stop10h 02m
Ontario
Wed 4/29
3:26 pm-6:10 am
1 stop11h 44m
$329
RaleighOntario
RDU - ONT
RDUONT
Raleigh-Durham
Thu 3/19
6:43 pm-11:59 pm
1 stop8h 16m
Ontario
Tue 3/24
6:15 am-5:48 pm
1 stop8h 33m
$330
RaleighOntario
RDU - ONT
RDUONT
Raleigh-Durham
Wed 3/25
7:10 am-12:23 pm
1 stop8h 13m
Ontario
Wed 4/8
10:25 pm-9:06 am
1 stop7h 41m
$348
RaleighOntario
RDU - ONT
RDUONT
Raleigh-Durham
Wed 3/25
7:10 am-12:23 pm
1 stop8h 13m
Ontario
Tue 4/7
10:25 pm-10:14 am
1 stop8h 49m
$348
Showing 1-10 of 24 results
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.
RDU-ONT
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
DU8-ONT
RDU-ONT
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 January 30, 2026.
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 29 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, September is the cheapest month in which you can book a flight from Durham to Ontario (average of $132). Flying from Durham to Ontario in December is currently the most expensive (average of $250). 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 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 February 4, 2026.
Peruse reviews from past customers who have flown with Southwest, Delta, and United Airlines 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.
Comfort
8.0
Food
7.0
Crew
8.6
Entertainment
7.5
Boarding
8.1
Overall
8.0
Reviews
1 / 20
8.0
ExcellentWalter,Aug 2025
OAK - SAN
Comfort
8.0
Food
7.0
Crew
8.6
Entertainment
7.5
Boarding
8.1
Overall
8.0
Reviews
1 / 20
8.0
ExcellentWalter,Aug 2025
OAK - SAN
Comfort
8.0
Food
7.0
Crew
8.6
Entertainment
7.5
Boarding
8.1
Overall
8.0
Reviews
1 / 20
8.0
ExcellentWalter,Aug 2025
OAK - SAN
Comfort
8.0
Food
7.0
Crew
8.6
Entertainment
7.5
Boarding
8.1
Overall
8.0
Reviews
1 / 20
8.0
ExcellentWalter,Aug 2025
OAK - SAN
Comfort
8.0
Food
7.0
Crew
8.6
Entertainment
7.5
Boarding
8.1
Overall
8.0
Reviews
1 / 20
8.0
ExcellentWalter,Aug 2025
OAK - SAN
Comfort
8.0
Food
7.0
Crew
8.6
Entertainment
7.5
Boarding
8.1
Overall
8.0
Reviews
1 / 20
8.0
ExcellentWalter,Aug 2025
OAK - SAN
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.
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.
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Alternative routes for Durham to Ontario
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Ontario by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Durham to Ontario by cabin class
Find flights from Durham to Ontario, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Other flights to Ontario
Explore flights to Ontario departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on February 4, 2026.
Durham and Ontario flights
Browse other Durham and Ontario flight options. Last updated on February 4, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Durham to Ontario flights
Consider these flights traveling from Durham to Ontario.
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 February 4, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$158 | Average$272 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$266 | Average$458 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$285 | Average$446 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$293 | Average$424 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$315 | Average$476 | FlexibilityNo cancel fee | On-time63% |