$269+ Cheap flights from Ontario to Wilmington (ONT - ILM)
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 7/21. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — ILM
Jun 13 — Jun 201
Round-trip
1 adult, Economy
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Find cheap flights from Ontario to Wilmington 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
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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 Wilmington
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Cheapest flights from Ontario to WilmingtonExplore the most affordable flight options available from Ontario to Wilmington. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 14, 2026.
Explore the most affordable flight options available from Ontario to Wilmington. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 14, 2026.
This Delta deal was found by Cheapflights users on 5/10. 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 8/412:32 pm
ONT
- ILM
1 stop8h 25m
Delta
Sat 8/86:00 am
ILM
- ONT
1 stop7h 42m
Delta
Deal found 5/10![Delta logo]()
$488
This American Airlines deal was found by Cheapflights users on 5/13. 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 7/410:10 pm
ONT
- ILM
1 stop7h 20m
American Airlines
Sat 7/117:00 am
ILM
- ONT
1 stop7h 45m
American Airlines
Deal found 5/13![American Airlines logo]()
$517
This Delta deal was found by Cheapflights users on 5/13. 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.
Sun 5/2412:07 pm
ONT
- ILM
1 stop8h 17m
Delta
Mon 6/152:26 pm
ILM
- ONT
1 stop7h 04m
Delta
Deal found 5/13![Delta logo]()
$528
This Delta deal was found by Cheapflights users on 5/11. 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.
Fri 8/1411:56 am
ONT
- ILM
1 stop9h 01m
Delta
Mon 8/172:29 pm
ILM
- ONT
1 stop7h 00m
Delta
Deal found 5/11![Delta logo]()
$535
This Delta deal was found by Cheapflights users on 5/9. 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.
Mon 6/2910:00 pm
ONT
- ILM
1 stop8h 41m
Delta
Mon 7/65:47 am
ILM
- ONT
1 stop7h 53m
Delta
Deal found 5/9![Delta logo]()
$541
This Delta deal was found by Cheapflights users on 5/13. 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 5/2610:00 pm
ONT
- ILM
1 stop8h 40m
Delta
Fri 6/125:47 am
ILM
- ONT
1 stop7h 53m
Delta
Deal found 5/13![Delta logo]()
$546
This American Airlines deal was found by Cheapflights users on 5/9. 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 5/2310:22 am
ONT
- ILM
2 stops11h 37m
American Airlines
Tue 5/264:35 pm
ILM
- ONT
1 stop9h 03m
American Airlines
Deal found 5/9![American Airlines logo]()
$550
This Delta deal was found by Cheapflights users on 5/10. 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 8/59:43 am
ONT
- ILM
2 stops11h 14m
Delta
Sat 8/812:13 pm
ILM
- ONT
1 stop9h 16m
Delta
Deal found 5/10![Delta logo]()
$552
This United Airlines deal was found by Cheapflights users on 5/11. 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 5/167:00 am
ONT
- ILM
2 stops13h 44m
United Airlines
Sun 5/247:30 am
ILM
- ONT
2 stops16h 12m
United Airlines
Deal found 5/11![United Airlines logo]()
$558
Best flights from Ontario to WilmingtonDiscover carefully curated flight deals from Ontario to Wilmington that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated May 14, 2026.
Discover carefully curated flight deals from Ontario to Wilmington that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated May 14, 2026.
This Delta deal was found by Cheapflights users on 5/10. 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 8/412:32 pm
ONT
- ILM
2 stops19h 10m
Delta
Sat 8/86:00 am
ILM
- ONT
1 stop7h 42m
Delta
Deal found 5/10![Delta logo]()
$516
This American Airlines deal was found by Cheapflights users on 5/14. 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 8/1412:33 pm
ONT
- ILM
1 stop7h 32m
American Airlines
Mon 8/171:52 pm
ILM
- ONT
2 stops12h 06m
American Airlines
Deal found 5/14![American Airlines logo]()
$540
This Delta deal was found by Cheapflights users on 5/13. 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 5/2710:00 pm
ONT
- ILM
1 stop8h 40m
Delta
Mon 6/152:26 pm
ILM
- ONT
1 stop7h 04m
Delta
Deal found 5/13![Delta logo]()
$528
This Delta deal was found by Cheapflights users on 5/13. 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.
Sun 5/2412:07 pm
ONT
- ILM
1 stop8h 17m
Delta
Mon 6/152:26 pm
ILM
- ONT
1 stop7h 04m
Delta
Deal found 5/13![Delta logo]()
$528
This Delta deal was found by Cheapflights users on 5/10. 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.
Fri 8/1411:56 am
ONT
- ILM
1 stop9h 01m
Delta
Mon 8/172:29 pm
ILM
- ONT
1 stop7h 00m
Delta
Deal found 5/10![Delta logo]()
$535
This Delta deal was found by Cheapflights users on 5/9. 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.
Mon 6/2910:00 pm
ONT
- ILM
1 stop8h 41m
Delta
Mon 7/65:47 am
ILM
- ONT
1 stop7h 53m
Delta
Deal found 5/9![Delta logo]()
$541
This Delta deal was found by Cheapflights users on 5/10. 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 8/412:32 pm
ONT
- ILM
1 stop8h 25m
Delta
Fri 8/76:48 pm
ILM
- ONT
1 stop18h 54m
Delta
Deal found 5/10![Delta logo]()
$558
Last-minute flights from Ontario to WilmingtonDiscover last-minute flight deals from Ontario to Wilmington. Data last updated May 14, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to Wilmington. Data last updated May 14, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 5/11. 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 5/167:00 am
ONT
- ILM
2 stops13h 44m
United Airlines
Sun 5/247:30 am
ILM
- ONT
2 stops16h 12m
United Airlines
Deal found 5/11![United Airlines logo]()
$558
This American Airlines deal was found by Cheapflights users on 5/9. 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 5/2310:00 pm
ONT
- ILM
1 stop9h 38m
American Airlines
Tue 5/264:35 pm
ILM
- ONT
1 stop9h 03m
American Airlines
Deal found 5/9![American Airlines logo]()
$545
This Delta deal was found by Cheapflights users on 5/13. 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.
Sun 5/2412:07 pm
ONT
- ILM
1 stop8h 17m
Delta
Fri 6/125:47 am
ILM
- ONT
1 stop7h 53m
Delta
Deal found 5/13![Delta logo]()
$488
This Delta deal was found by Cheapflights users on 5/13. 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.
Sun 5/2412:07 pm
ONT
- ILM
1 stop8h 17m
Delta
Mon 6/152:26 pm
ILM
- ONT
1 stop7h 04m
Delta
Deal found 5/13![Delta logo]()
$528
This Delta deal was found by Cheapflights users on 5/13. 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 5/2610:00 pm
ONT
- ILM
1 stop8h 40m
Delta
Fri 6/125:47 am
ILM
- ONT
1 stop7h 53m
Delta
Deal found 5/13![Delta logo]()
$546
This Delta deal was found by Cheapflights users on 5/9. 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.
Mon 6/2910:00 pm
ONT
- ILM
1 stop8h 41m
Delta
Mon 7/65:47 am
ILM
- ONT
1 stop7h 53m
Delta
Deal found 5/9![Delta logo]()
$541
One-way flights from Ontario to WilmingtonSearch for one-way flight options from Ontario to Wilmington. Find affordable one-way fares based on user searches. Data last updated May 14, 2026.
Search for one-way flight options from Ontario to Wilmington. Find affordable one-way fares based on user searches. Data last updated May 14, 2026.
This Kiwi.com deal was found by Cheapflights users on 5/9. 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 7/218:39 pm
ONT
- ILM
3 stops39h 11m
Multiple Airlines
Deal found 5/9![Multiple Airlines logo]()
$269
This Kiwi.com deal was found by Cheapflights users on 5/11. 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 5/278:59 am
ONT
- ILM
3 stops26h 51m
Multiple Airlines
Deal found 5/11![Multiple Airlines logo]()
$275
This Expedia deal was found by Cheapflights users on 5/9. 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 7/2111:50 pm
ONT
- ILM
2 stops12h 45m
JetBlue
Deal found 5/9![JetBlue logo]()
$310
This United Airlines deal was found by Cheapflights users on 5/13. 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 7/81:50 pm
ONT
- ILM
2 stops22h 10m
United Airlines
Deal found 5/13![United Airlines logo]()
$369
This Kiwi.com deal was found by Cheapflights users on 5/11. 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 5/2310:50 am
ONT
- ILM
3 stops47h 45m
Multiple Airlines
Deal found 5/11![Multiple Airlines logo]()
$381
This United Airlines deal was found by Cheapflights users on 5/12. 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.
Tue 7/281:50 pm
ONT
- ILM
2 stops22h 10m
United Airlines
Deal found 5/12![United Airlines logo]()
$404
This Delta deal was found by Cheapflights users on 5/13. 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 7/811:48 am
ONT
- ILM
1 stop8h 12m
Delta
Deal found 5/13![Delta logo]()
$428
This United Airlines deal was found by Cheapflights users on 5/13. 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.
Thu 7/95:45 am
ONT
- ILM
2 stops14h 59m
United Airlines
Deal found 5/13![United Airlines logo]()
$433
This Delta deal was found by Cheapflights users on 5/13. 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.
Thu 7/97:05 am
ONT
- ILM
1 stop7h 58m
Delta
Deal found 5/13![Delta logo]()
$438
Find flight deals from Ontario to Wilmington
Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Wilmington (ILM). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated May 14, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $488 (Delta) |
One-way from | $269 (Kiwi.com) |
Popular in | September |
Cheapest in | February |
Average price | $448 |
Cheapflights Fare Finder
Customize your flight search to find flights from Ontario to Wilmington 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 May 14, 2026.
Use the filters below to find and compare flights from Ontario to Wilmington that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
OntarioWilmington
ONT - ILM
ONTILM
Ontario
Tue 8/4
12:32 pm-10:42 am
2 stops19h 10m
Wilmington New Hanover County
Sat 8/8
6:00 am-10:42 am
1 stop7h 42m
$516
OntarioWilmington
ONT - ILM
ONTILM
Ontario
Wed 5/27
10:00 pm-9:40 am
1 stop8h 40m
Wilmington New Hanover County
Mon 6/15
2:26 pm-6:30 pm
1 stop7h 04m
$528
Quickest round-trip
OntarioWilmington
ONT - ILM
ONTILM
Ontario
Sun 5/24
12:07 pm-11:24 pm
1 stop8h 17m
Wilmington New Hanover County
Mon 6/15
2:26 pm-6:30 pm
1 stop7h 04m
$528
OntarioWilmington
ONT - ILM
ONTILM
Ontario
Fri 8/14
11:56 am-11:57 pm
1 stop9h 01m
Wilmington New Hanover County
Mon 8/17
2:29 pm-6:29 pm
1 stop7h 00m
$535
OntarioWilmington
ONT - ILM
ONTILM
Ontario
Fri 8/14
12:33 pm-11:05 pm
1 stop7h 32m
Wilmington New Hanover County
Mon 8/17
1:52 pm-10:58 pm
2 stops12h 06m
$540
OntarioWilmington
ONT - ILM
ONTILM
Ontario
Mon 6/29
10:00 pm-9:41 am
1 stop8h 41m
Wilmington New Hanover County
Mon 7/6
5:47 am-10:40 am
1 stop7h 53m
$541
OntarioWilmington
ONT - ILM
ONTILM
Ontario
Tue 8/4
12:32 pm-11:57 pm
1 stop8h 25m
Wilmington New Hanover County
Fri 8/7
6:48 pm-10:42 am
1 stop18h 54m
$558
Cheapest one-way
OntarioWilmington
ONT - ILM
ONTILM
Ontario
Wed 5/27
4:39 pm-8:42 pm
2 stops25h 03m
$290
OntarioWilmington
ONT - ILM
ONTILM
Ontario
Tue 7/28
1:50 pm-3:00 pm
2 stops22h 10m
$404
OntarioWilmington
ONT - ILM
ONTILM
Ontario
Sat 7/25
12:00 pm-10:31 pm
1 stop7h 31m
$428
Showing 1-10 of 19 resultsSorted by cheapest first
Compare providers for flights from Ontario to Wilmington
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Ontario to Wilmington in May.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Ontario-Wilmington flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Ontario-Wilmington flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Ontario-Wilmington flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Ontario-Wilmington flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Ontario-Wilmington flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Ontario to Wilmington
Have a flexible travel schedule? Discover the best time to fly to Wilmington from Ontario with our price prediction graph.
ONT-ILM
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 Wilmington
Reviews of airlines servicing Wilmington
Get insights into the airlines that provide service to Wilmington. 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 Wilmington. Reviews last updated May 14, 2026.
Read reviews from past customers who have flown Delta and American Airlines from Ontario to Wilmington. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Boarding
8.1
Comfort
7.8
Overall
7.9
Entertainment
7.8
Crew
8.5
Food
7.2
Reviews
1 / 20
10.0
ExcellentMichael,Sep 2023
SMF - ATL
Boarding
8.1
Comfort
7.8
Overall
7.9
Entertainment
7.8
Crew
8.5
Food
7.2
Reviews
1 / 20
10.0
ExcellentMichael,Sep 2023
SMF - ATL
Boarding
8.1
Comfort
7.8
Overall
7.9
Entertainment
7.8
Crew
8.5
Food
7.2
Reviews
1 / 20
10.0
ExcellentMichael,Sep 2023
SMF - ATL
Related info for your journey
Find useful and relevant information for your journey from Ontario to Wilmington. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Wilmington?
Book flights to Wilmington if you plan to visit one of these locationsCarolina Beach
Wrightsville Beach
Topsail Beach
Kure Beach
Southport
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Ontario and Wilmington flights
Browse other Ontario and Wilmington flight options. Last updated on May 14, 2026.
Other flights from Ontario
Browse through other flights departing from Ontario. Flights are based on user searches made on Cheapflights and were last updated on May 14, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Other flights to Wilmington
Explore flights to Wilmington departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on May 14, 2026.
Top 2 airlines flying from Ontario to Wilmington
Discover the top 2 airlines that operate flights from Ontario to Wilmington. 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 May 14, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$308 | Average$523 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$329 | Average$519 | FlexibilityNo cancel fee | On-time71% |