$233+ Cheap flights from Wilmington to Ontario (ILM - 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 6/30. Fares are subject to change and may not be available on all flights or dates of travel.
ILM — ONT
Jul 10 — Jul 171
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from Wilmington to Ontario 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 Wilmington to Ontario
Cheapest
Best
Last-minute
One-way
Cheapest flights from Wilmington to OntarioExplore the most affordable flight options available from Wilmington to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 10, 2026.
Explore the most affordable flight options available from Wilmington to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 10, 2026.
This Delta deal was found by Cheapflights users on 6/6. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/295:48 am
ILM
- ONT
1 stop7h 50m
Delta
Tue 8/1812:00 pm
ONT
- ILM
1 stop8h 57m
Delta
Deal found 6/6![Delta logo]()
$464
This Delta deal was found by Cheapflights users on 6/6. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/295:48 am
ILM
- ONT
1 stop7h 50m
Delta
Sat 8/1512:00 pm
ONT
- ILM
1 stop7h 06m
Delta
Deal found 6/6![Delta logo]()
$489
This Delta deal was found by Cheapflights users on 6/7. 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.
Fri 7/32:26 pm
ILM
- ONT
1 stop7h 04m
Delta
Mon 7/610:00 pm
ONT
- ILM
1 stop8h 40m
Delta
Deal found 6/7![Delta logo]()
$508
This United Airlines deal was found by Cheapflights users on 6/9. 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 7/33:41 pm
ILM
- ONT
1 stop10h 10m
United Airlines
Sat 7/116:10 am
ONT
- ILM
2 stops14h 34m
United Airlines
Deal found 6/9![United Airlines logo]()
$514
This Delta deal was found by Cheapflights users on 6/6. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/295:48 am
ILM
- ONT
1 stop7h 50m
Delta
Mon 8/1710:00 pm
ONT
- ILM
2 stops21h 10m
Delta
Deal found 6/6![Delta logo]()
$515
This Delta deal was found by Cheapflights users on 6/6. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/295:48 am
ILM
- ONT
1 stop7h 50m
Delta
Sun 8/1610:00 pm
ONT
- ILM
1 stop8h 55m
Delta
Deal found 6/6![Delta logo]()
$517
This Delta deal was found by Cheapflights users on 6/6. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/295:48 am
ILM
- ONT
1 stop7h 50m
Delta
Thu 8/1310:00 pm
ONT
- ILM
1 stop8h 55m
Delta
Deal found 6/6![Delta logo]()
$523
This Delta deal was found by Cheapflights users on 6/7. 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.
Fri 7/32:26 pm
ILM
- ONT
1 stop7h 04m
Delta
Tue 7/711:48 am
ONT
- ILM
1 stop8h 08m
Delta
Deal found 6/7![Delta logo]()
$528
This American Airlines deal was found by Cheapflights users on 6/9. 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.
Thu 8/137:46 am
ILM
- ONT
1 stop8h 45m
American Airlines
Thu 8/2012:33 pm
ONT
- ILM
1 stop7h 32m
American Airlines
Deal found 6/9![American Airlines logo]()
$535
This Delta deal was found by Cheapflights users on 6/6. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/305:48 am
ILM
- ONT
1 stop7h 50m
Delta
Tue 8/1812:00 pm
ONT
- ILM
1 stop8h 57m
Delta
Deal found 6/6![Delta logo]()
$538
This American Airlines deal was found by Cheapflights users on 6/7. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/13:33 pm
ILM
- ONT
1 stop10h 03m
American Airlines
Tue 7/72:15 pm
ONT
- ILM
1 stop6h 42m
American Airlines
Deal found 6/7![American Airlines logo]()
$539
This Delta deal was found by Cheapflights users on 6/6. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/295:48 am
ILM
- ONT
1 stop7h 50m
Delta
Fri 8/1410:00 pm
ONT
- ILM
2 stops17h 44m
Delta
Deal found 6/6![Delta logo]()
$540
Best flights from Wilmington to OntarioDiscover carefully curated flight deals from Wilmington to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 10, 2026.
Discover carefully curated flight deals from Wilmington to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 10, 2026.
This Delta deal was found by Cheapflights users on 6/6. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/295:48 am
ILM
- ONT
1 stop7h 50m
Delta
Sun 8/1610:00 pm
ONT
- ILM
1 stop8h 55m
Delta
Deal found 6/6![Delta logo]()
$517
This American Airlines deal was found by Cheapflights users on 6/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/137:46 am
ILM
- ONT
1 stop6h 57m
American Airlines
Thu 8/2012:33 pm
ONT
- ILM
1 stop7h 32m
American Airlines
Deal found 6/5![American Airlines logo]()
$535
This United Airlines deal was found by Cheapflights users on 6/9. 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.
Thu 8/134:44 pm
ILM
- ONT
1 stop8h 51m
United Airlines
Thu 8/201:18 pm
ONT
- ILM
2 stops23h 19m
United Airlines
Deal found 6/9![United Airlines logo]()
$640
This Delta deal was found by Cheapflights users on 6/6. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/295:48 am
ILM
- ONT
1 stop7h 50m
Delta
Mon 8/1710:00 pm
ONT
- ILM
1 stop8h 55m
Delta
Deal found 6/6![Delta logo]()
$517
This Delta deal was found by Cheapflights users on 6/7. 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.
Fri 7/32:26 pm
ILM
- ONT
1 stop7h 04m
Delta
Tue 7/711:48 am
ONT
- ILM
1 stop8h 08m
Delta
Deal found 6/7![Delta logo]()
$528
This United Airlines deal was found by Cheapflights users on 6/7. 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 10/316:00 am
ILM
- ONT
2 stops17h 20m
United Airlines
Tue 11/37:00 am
ONT
- ILM
2 stops13h 53m
United Airlines
Deal found 6/7![United Airlines logo]()
$648
This Delta deal was found by Cheapflights users on 6/6. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/295:48 am
ILM
- ONT
1 stop7h 50m
Delta
Fri 8/1410:00 pm
ONT
- ILM
2 stops17h 44m
Delta
Deal found 6/6![Delta logo]()
$540
This Delta deal was found by Cheapflights users on 6/6. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/312:28 pm
ILM
- ONT
1 stop10h 22m
Delta
Sat 8/1512:00 pm
ONT
- ILM
1 stop7h 06m
Delta
Deal found 6/6![Delta logo]()
$598
This Delta deal was found by Cheapflights users on 6/6. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/3110:29 am
ILM
- ONT
1 stop14h 21m
Delta
Thu 8/1310:00 pm
ONT
- ILM
1 stop8h 55m
Delta
Deal found 6/6![Delta logo]()
$632
Last-minute flights from Wilmington to OntarioDiscover last-minute flight deals from Wilmington to Ontario. Data last updated June 10, 2026 and is based on user searches.
Discover last-minute flight deals from Wilmington to Ontario. Data last updated June 10, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 6/7. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/13:33 pm
ILM
- ONT
1 stop10h 03m
American Airlines
Tue 7/72:15 pm
ONT
- ILM
1 stop6h 42m
American Airlines
Deal found 6/7![American Airlines logo]()
$539
This Delta deal was found by Cheapflights users on 6/7. 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.
Fri 7/32:26 pm
ILM
- ONT
1 stop7h 04m
Delta
Mon 7/610:00 pm
ONT
- ILM
1 stop8h 40m
Delta
Deal found 6/7![Delta logo]()
$508
This United Airlines deal was found by Cheapflights users on 6/9. 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 7/33:41 pm
ILM
- ONT
1 stop10h 10m
United Airlines
Sat 7/116:10 am
ONT
- ILM
2 stops14h 34m
United Airlines
Deal found 6/9![United Airlines logo]()
$514
This Delta deal was found by Cheapflights users on 6/7. 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.
Fri 7/32:26 pm
ILM
- ONT
1 stop7h 04m
Delta
Tue 7/711:48 am
ONT
- ILM
1 stop8h 08m
Delta
Deal found 6/7![Delta logo]()
$528
This Delta deal was found by Cheapflights users on 6/6. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/295:48 am
ILM
- ONT
1 stop7h 50m
Delta
Tue 8/1812:00 pm
ONT
- ILM
1 stop8h 57m
Delta
Deal found 6/6![Delta logo]()
$464
This Delta deal was found by Cheapflights users on 6/6. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/295:48 am
ILM
- ONT
1 stop7h 50m
Delta
Sat 8/1512:00 pm
ONT
- ILM
1 stop7h 06m
Delta
Deal found 6/6![Delta logo]()
$489
This Delta deal was found by Cheapflights users on 6/6. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/295:48 am
ILM
- ONT
1 stop7h 50m
Delta
Mon 8/1710:00 pm
ONT
- ILM
2 stops21h 10m
Delta
Deal found 6/6![Delta logo]()
$515
This Delta deal was found by Cheapflights users on 6/6. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/295:48 am
ILM
- ONT
1 stop7h 50m
Delta
Sun 8/1610:00 pm
ONT
- ILM
1 stop8h 55m
Delta
Deal found 6/6![Delta logo]()
$517
This Delta deal was found by Cheapflights users on 6/6. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/295:48 am
ILM
- ONT
1 stop7h 50m
Delta
Thu 8/1310:00 pm
ONT
- ILM
1 stop8h 55m
Delta
Deal found 6/6![Delta logo]()
$523
This Delta deal was found by Cheapflights users on 6/6. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/295:48 am
ILM
- ONT
1 stop7h 50m
Delta
Fri 8/1410:00 pm
ONT
- ILM
2 stops17h 44m
Delta
Deal found 6/6![Delta logo]()
$540
This Delta deal was found by Cheapflights users on 6/6. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/305:48 am
ILM
- ONT
1 stop7h 50m
Delta
Tue 8/1812:00 pm
ONT
- ILM
1 stop8h 57m
Delta
Deal found 6/6![Delta logo]()
$538
This Delta deal was found by Cheapflights users on 6/6. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/305:48 am
ILM
- ONT
1 stop7h 50m
Delta
Sat 8/1512:00 pm
ONT
- ILM
1 stop7h 06m
Delta
Deal found 6/6![Delta logo]()
$563
One-way flights from Wilmington to OntarioSearch for one-way flight options from Wilmington to Ontario. Find affordable one-way fares based on user searches. Data last updated June 10, 2026.
Search for one-way flight options from Wilmington to Ontario. Find affordable one-way fares based on user searches. Data last updated June 10, 2026.
This Kiwi.com deal was found by Cheapflights users on 6/8. 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.
Tue 6/3010:46 am
ILM
- ONT
2 stops31h 22m
Multiple Airlines
Deal found 6/8![Multiple Airlines logo]()
$233
This Kiwi.com deal was found by Cheapflights users on 6/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/243:39 pm
ILM
- ONT
2 stops42h 53m
Multiple Airlines
Deal found 6/5![Multiple Airlines logo]()
$299
This United Airlines deal was found by Cheapflights users on 6/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/243:47 pm
ILM
- ONT
1 stop10h 04m
United Airlines
Deal found 6/5![United Airlines logo]()
$374
This Delta deal was found by Cheapflights users on 6/9. 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.
Sun 8/166:00 am
ILM
- ONT
1 stop7h 42m
Delta
Deal found 6/9![Delta logo]()
$428
This United Airlines deal was found by Cheapflights users on 6/9. 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.
Wed 10/286:00 am
ILM
- ONT
2 stops14h 47m
United Airlines
Deal found 6/9![United Airlines logo]()
$433
This Delta deal was found by Cheapflights users on 6/8. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/302:26 pm
ILM
- ONT
1 stop7h 04m
Delta
Deal found 6/8![Delta logo]()
$458
This Delta deal was found by Cheapflights users on 6/8. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/2012:09 pm
ILM
- ONT
1 stop9h 21m
Delta
Deal found 6/8![Delta logo]()
$460
This United Airlines deal was found by Cheapflights users on 6/9. 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 6/203:41 pm
ILM
- ONT
1 stop10h 10m
United Airlines
Deal found 6/9![United Airlines logo]()
$461
This American Airlines deal was found by Cheapflights users on 6/8. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/205:09 am
ILM
- ONT
2 stops9h 42m
American Airlines
Deal found 6/8![American Airlines logo]()
$465
Find flight deals from Wilmington to Ontario
Discover tips and strategies to find the most affordable flight options for your journey from Wilmington (ILM) to Ontario (ONT). 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 June 10, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $464 (Delta) |
One-way from | $233 (Kiwi.com) |
Popular in | March |
Cheapest in | October |
Average price | $544 |
Cheapflights Fare Finder
Customize your flight search to find flights from Wilmington 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 June 10, 2026.
Use the filters below to find and compare flights from Wilmington to Ontario that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
WilmingtonOntario
ILM - ONT
ILMONT
Wilmington New Hanover County
Wed 7/29
5:48 am-10:38 am
1 stop7h 50m
Ontario
Sun 8/16
10:00 pm-9:55 am
1 stop8h 55m
$517
WilmingtonOntario
ILM - ONT
ILMONT
Wilmington New Hanover County
Wed 7/29
5:48 am-10:38 am
1 stop7h 50m
Ontario
Mon 8/17
10:00 pm-9:55 am
1 stop8h 55m
$517
WilmingtonOntario
ILM - ONT
ILMONT
Wilmington New Hanover County
Fri 7/3
2:26 pm-6:30 pm
1 stop7h 04m
Ontario
Tue 7/7
11:48 am-10:56 pm
1 stop8h 08m
$528
Quickest round-trip
WilmingtonOntario
ILM - ONT
ILMONT
Wilmington New Hanover County
Thu 8/13
7:46 am-11:43 am
1 stop6h 57m
Ontario
Thu 8/20
12:33 pm-11:05 pm
1 stop7h 32m
$535
WilmingtonOntario
ILM - ONT
ILMONT
Wilmington New Hanover County
Wed 7/29
5:48 am-10:38 am
1 stop7h 50m
Ontario
Fri 8/14
10:00 pm-6:44 pm
2 stops17h 44m
$540
WilmingtonOntario
ILM - ONT
ILMONT
Wilmington New Hanover County
Fri 7/31
2:28 pm-9:50 pm
1 stop10h 22m
Ontario
Sat 8/15
12:00 pm-10:06 pm
1 stop7h 06m
$598
WilmingtonOntario
ILM - ONT
ILMONT
Wilmington New Hanover County
Fri 7/31
10:29 am-9:50 pm
1 stop14h 21m
Ontario
Thu 8/13
10:00 pm-9:55 am
1 stop8h 55m
$632
WilmingtonOntario
ILM - ONT
ILMONT
Wilmington New Hanover County
Thu 8/13
4:44 pm-10:35 pm
1 stop8h 51m
Ontario
Thu 8/20
1:18 pm-3:37 pm
2 stops23h 19m
$640
WilmingtonOntario
ILM - ONT
ILMONT
Wilmington New Hanover County
Sat 10/31
6:00 am-8:20 pm
2 stops17h 20m
Ontario
Tue 11/3
7:00 am-11:53 pm
2 stops13h 53m
$648
Cheapest one-way
WilmingtonOntario
ILM - ONT
ILMONT
Wilmington New Hanover County
Tue 6/30
10:46 am-3:08 pm
2 stops31h 22m
$233
Showing 1-10 of 21 resultsSorted by cheapest first
Compare providers for flights from Wilmington to Ontario
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 Wilmington to Ontario in June.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Wilmington-Ontario flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Wilmington-Ontario flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Wilmington-Ontario flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Wilmington-Ontario 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 Wilmington-Ontario 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 Wilmington to Ontario
Have a flexible travel schedule? Discover the best time to fly to Ontario from Wilmington with our price prediction graph.
ILM-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 Wilmington to Ontario
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 June 10, 2026.
Peruse reviews from past customers who have flown with Delta and American Airlines from Wilmington 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.
Crew
8.5
Entertainment
7.8
Boarding
8.1
Comfort
7.8
Overall
7.9
Food
7.2
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
TUS - LAX
Crew
8.5
Entertainment
7.8
Boarding
8.1
Comfort
7.8
Overall
7.9
Food
7.2
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
TUS - LAX
Crew
8.5
Entertainment
7.8
Boarding
8.1
Comfort
7.8
Overall
7.9
Food
7.2
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
TUS - LAX
Related info for your journey
Find useful and relevant information for your journey from Wilmington 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.
Alternative routes
Complete your trip
Flights by cabin class
Ontario flight routes
Other flight options
Other flights from Wilmington
Popular flights
Alternative routes for Wilmington 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 Wilmington to Ontario by cabin class
Find flights from Wilmington 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 June 10, 2026.
Wilmington and Ontario flights
Browse other Wilmington and Ontario flight options. Last updated on June 10, 2026.
Other flights from Wilmington
Browse through other flights departing from Wilmington. Flights are based on user searches made on Cheapflights and were last updated on June 10, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 2 airlines flying from Wilmington to Ontario
Discover the top 2 airlines that operate flights from Wilmington 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 June 10, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$354 | Average$498 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$368 | Average$463 | FlexibilityNo cancel fee | On-time71% |