$271+ Cheap flights from Ontario to Wilmington (ONT - ILM)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/5. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — ILM
Oct 11 — Oct 181
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
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
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 Wilmington
Cheapest
Best
Last-minute
One-way
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 September 11, 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 September 11, 2026.
This United Airlines deal was found by Cheapflights users on 9/7. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/176:00 am -
2 stops13h 59m
Sat 10/244:00 pm -
1 stop7h 58m
Deal found 9/7![United Airlines logo]()
$404
This American Airlines deal was found by Cheapflights users on 9/9. 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 10/1710:10 pm -
1 stop9h 28m
Tue 10/204:25 pm -
1 stop10h 27m
Deal found 9/9![American Airlines logo]()
$439
This American Airlines deal was found by Cheapflights users on 9/10. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2110:10 pm -
1 stop7h 16m
Tue 11/33:35 pm -
1 stop9h 37m
Deal found 9/10![American Airlines logo]()
$488
This Delta deal was found by Cheapflights users on 9/10. 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.
Sat 11/712:16 pm -
1 stop6h 40m
Mon 11/95:37 pm -
1 stop7h 20m
Deal found 9/10![Delta logo]()
$492
This United Airlines deal was found by Cheapflights users on 9/8. 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 10/286:00 am -
2 stops14h 44m
Sat 10/316:00 am -
2 stops15h 01m
Deal found 9/8![United Airlines logo]()
$499
This United Airlines deal was found by Cheapflights users on 9/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/107:00 am -
2 stops12h 59m
Sat 10/174:00 pm -
1 stop7h 58m
Deal found 9/9![United Airlines logo]()
$521
This Delta deal was found by Cheapflights users on 9/7. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/1811:15 pm -
1 stop7h 22m
Sat 10/2412:40 pm -
1 stop9h 50m
Deal found 9/7![Delta logo]()
$538
This United Airlines deal was found by Cheapflights users on 9/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/175:00 am -
1 stop7h 19m
Tue 10/206:00 am -
2 stops14h 41m
Deal found 9/9![United Airlines logo]()
$550
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 September 11, 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 September 11, 2026.
This United Airlines deal was found by Cheapflights users on 9/7. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/176:00 am -
2 stops13h 59m
Sat 10/244:00 pm -
1 stop7h 58m
Deal found 9/7![United Airlines logo]()
$404
This Delta deal was found by Cheapflights users on 9/10. 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.
Sat 11/712:16 pm -
1 stop6h 40m
Mon 11/95:37 pm -
1 stop7h 20m
Deal found 9/10![Delta logo]()
$492
This American Airlines deal was found by Cheapflights users on 9/10. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/217:34 pm -
2 stops12h 04m
Tue 11/33:35 pm -
1 stop9h 37m
Deal found 9/10![American Airlines logo]()
$561
This United Airlines deal was found by Cheapflights users on 9/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/56:00 am -
2 stops14h 59m
Tue 2/96:00 am -
2 stops14h 47m
Deal found 9/9![United Airlines logo]()
$499
This United Airlines deal was found by Cheapflights users on 9/8. 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 10/286:00 am -
2 stops14h 44m
Sat 10/316:00 am -
2 stops15h 01m
Deal found 9/8![United Airlines logo]()
$499
This United Airlines deal was found by Cheapflights users on 9/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/107:00 am -
2 stops12h 59m
Sat 10/174:00 pm -
1 stop7h 58m
Deal found 9/9![United Airlines logo]()
$521
Last-minute flights from Ontario to WilmingtonDiscover last-minute flight deals from Ontario to Wilmington. Data last updated September 11, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to Wilmington. Data last updated September 11, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 9/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/107:00 am -
2 stops12h 59m
Sat 10/174:00 pm -
1 stop7h 58m
Deal found 9/9![United Airlines logo]()
$521
This United Airlines deal was found by Cheapflights users on 9/7. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/176:00 am -
2 stops13h 59m
Sat 10/244:00 pm -
1 stop7h 58m
Deal found 9/7![United Airlines logo]()
$404
This American Airlines deal was found by Cheapflights users on 9/9. 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 10/1710:10 pm -
1 stop9h 28m
Tue 10/204:25 pm -
1 stop10h 27m
Deal found 9/9![American Airlines logo]()
$439
This United Airlines deal was found by Cheapflights users on 9/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/175:00 am -
1 stop7h 19m
Tue 10/206:00 am -
2 stops14h 41m
Deal found 9/9![United Airlines logo]()
$550
This Delta deal was found by Cheapflights users on 9/7. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/1811:15 pm -
1 stop7h 22m
Sat 10/2412:40 pm -
1 stop9h 50m
Deal found 9/7![Delta logo]()
$538
This American Airlines deal was found by Cheapflights users on 9/10. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2110:10 pm -
1 stop7h 16m
Tue 11/33:35 pm -
1 stop9h 37m
Deal found 9/10![American Airlines logo]()
$488
This United Airlines deal was found by Cheapflights users on 9/8. 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 10/286:00 am -
2 stops14h 44m
Sat 10/316:00 am -
2 stops15h 01m
Deal found 9/8![United Airlines logo]()
$499
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 September 11, 2026.
Search for one-way flight options from Ontario to Wilmington. Find affordable one-way fares based on user searches. Data last updated September 11, 2026.
This Kiwi.com deal was found by Cheapflights users on 9/7. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/56:15 am -
2 stops25h 26m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![Multiple Airlines logo]()
$271
This Kiwi.com deal was found by Cheapflights users on 9/8. 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 9/302:30 pm -
3 stops21h 01m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/8![Multiple Airlines logo]()
$278
This Kiwi.com deal was found by Cheapflights users on 9/6. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/126:25 am -
2 stops11h 42m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/6![Multiple Airlines logo]()
$291
This Kiwi.com deal was found by Cheapflights users on 9/6. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/138:35 pm -
3 stops38h 56m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/6![Multiple Airlines logo]()
$358
This United Airlines deal was found by Cheapflights users on 9/6. 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.
Fri 11/136:00 am -
2 stops14h 44m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/6![United Airlines logo]()
$394
This Kiwi.com deal was found by Cheapflights users on 9/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/811:52 am -
3 stops30h 21m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![Multiple Airlines logo]()
$415
This American Airlines deal was found by Cheapflights users on 9/6. 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.
Thu 11/1210:30 pm -
1 stop9h 08m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/6![American Airlines logo]()
$433
This United Airlines deal was found by Cheapflights users on 9/8. 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 10/35:00 am -
1 stop7h 19m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/8![United Airlines logo]()
$440
This Delta deal was found by Cheapflights users on 9/10. 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.
Thu 10/86:20 am -
2 stops13h 49m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![Delta logo]()
$451
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 September 11, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $404 (United Airlines) |
One-way from | $271 (Kiwi.com) |
Popular in | November |
Cheapest in | February |
Average price | $720 |
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 7,457,451 searches. Data last updated September 11, 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 Ontario - ILM Wilmington New Hanover County
ONTILM
Ontario
Thu 11/12
6:25 am-9:07 pm
2 stops11h 42m
Wilmington New Hanover County
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$291
OntarioWilmington
ONT Ontario - ILM Wilmington New Hanover County
ONTILM
Ontario
Mon 10/5
6:15 am-10:41 am
3 stops25h 26m
Wilmington New Hanover County
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$317
OntarioWilmington
ONT Ontario - ILM Wilmington New Hanover County
ONTILM
Ontario
Fri 11/13
6:00 am-11:44 pm
2 stops14h 44m
Wilmington New Hanover County
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$394
OntarioWilmington
ONT Ontario - ILM Wilmington New Hanover County
ONTILM
Ontario
Sat 10/17
6:00 am-10:59 pm
2 stops13h 59m
Wilmington New Hanover County
Sat 10/24
4:00 pm-8:58 pm
1 stop7h 58m
$404
Quickest round-trip
OntarioWilmington
ONT Ontario - ILM Wilmington New Hanover County
ONTILM
Ontario
Fri 11/13
6:00 am-4:10 pm
1 stop7h 10m
Wilmington New Hanover County
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$433
OntarioWilmington
ONT Ontario - ILM Wilmington New Hanover County
ONTILM
Ontario
Thu 11/12
10:30 pm-10:38 am
1 stop9h 08m
Wilmington New Hanover County
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$433
OntarioWilmington
ONT Ontario - ILM Wilmington New Hanover County
ONTILM
Ontario
Sat 10/3
5:00 am-3:19 pm
1 stop7h 19m
Wilmington New Hanover County
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$440
OntarioWilmington
ONT Ontario - ILM Wilmington New Hanover County
ONTILM
Ontario
Tue 10/6
6:00 am-10:59 pm
2 stops13h 59m
Wilmington New Hanover County
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$445
OntarioWilmington
ONT Ontario - ILM Wilmington New Hanover County
ONTILM
Ontario
Thu 10/8
6:20 am-11:09 pm
2 stops13h 49m
Wilmington New Hanover County
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$451
OntarioWilmington
ONT Ontario - ILM Wilmington New Hanover County
ONTILM
Ontario
Sat 9/19
5:00 am-3:19 pm
1 stop7h 19m
Wilmington New Hanover County
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$466
Showing 1-10 of 15 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 September.
| 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
What is the cheapest month to book a flight from Ontario to Wilmington?
Currently, February is the cheapest month in which you can book a flight from Ontario to Wilmington (average of $329). Flying from Ontario to Wilmington in November is currently the most expensive (average of $980). 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.
How much does it cost to fly round-trip from Ontario to Wilmington?
Airfare is below average for this route at the moment.
Ontario to Wilmington flights typically cost between $695 and $838 in October.The cheapest round-trip price found within the last 5 days was $404 on United Airlines (Oct 17-Oct 24).
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 September 11, 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.
Comfort
7.8
Food
7.2
Boarding
8.1
Entertainment
7.8
Overall
7.8
Crew
8.5
Reviews
1 / 20
10.0
ExcellentMichael,Sep 2023
SMF - ATL
Comfort
7.8
Food
7.2
Boarding
8.1
Entertainment
7.8
Overall
7.8
Crew
8.5
Reviews
1 / 20
10.0
ExcellentMichael,Sep 2023
SMF - ATL
Comfort
7.8
Food
7.2
Boarding
8.1
Entertainment
7.8
Overall
7.8
Crew
8.5
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
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
Complete your trip
Flights by cabin class
Other flight options
Other flights from Ontario
Popular flights
Wilmington flight routes
Alternative routes for Ontario to Wilmington
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Wilmington by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Ontario to Wilmington by cabin class
Find flights from Ontario to Wilmington, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Ontario and Wilmington flights
Browse other Ontario and Wilmington flight options. Last updated on September 11, 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 September 11, 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 September 11, 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 7,457,451 searches. Data last updated September 11, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$346 | Average$559 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$398 | Average$630 | FlexibilityNo cancel fee | On-time71% |