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Wilmington

$387+ 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 8/14. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — ILM
Aug 22 — Aug 291
Sat 8/22
Sat 8/29
1 adult, Economy
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Cheap flight deals from Ontario to Wilmington

Cheapest flights from Ontario to Wilmington
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 July 23, 2026.

This American Airlines deal was found by Cheapflights users on 7/20. 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 8/1410:29 am
ONT
-
ILM
1 stop9h 36m
American Airlines
Mon 8/174:53 pm
ILM
-
ONT
1 stop9h 06m
American Airlines
Deal found 7/20$387
This Delta deal was found by Cheapflights users on 7/23. 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 12/1412:00 pm
ONT
-
ILM
1 stop8h 04m
Delta
Mon 12/215:45 pm
ILM
-
ONT
1 stop7h 29m
Delta
Deal found 7/23$440
This American Airlines deal was found by Cheapflights users on 7/19. 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.
Tue 8/186:15 am
ONT
-
ILM
2 stops13h 40m
American Airlines
Mon 8/244:53 pm
ILM
-
ONT
1 stop9h 06m
American Airlines
Deal found 7/19$457
This American Airlines deal was found by Cheapflights users on 7/23. 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 9/412:33 pm
ONT
-
ILM
1 stop7h 32m
American Airlines
Tue 9/87:46 am
ILM
-
ONT
1 stop8h 45m
American Airlines
Deal found 7/23$471
This American Airlines deal was found by Cheapflights users on 7/23. 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 9/46:15 am
ONT
-
ILM
2 stops13h 50m
American Airlines
Wed 9/97:00 am
ILM
-
ONT
1 stop7h 47m
American Airlines
Deal found 7/23$479
This Delta deal was found by Cheapflights users on 7/20. 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 9/912:17 pm
ONT
-
ILM
1 stop6h 35m
Delta
Mon 9/145:50 pm
ILM
-
ONT
1 stop7h 34m
Delta
Deal found 7/20$487
This United Airlines deal was found by Cheapflights users on 7/20. 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 8/225:00 am
ONT
-
ILM
1 stop7h 19m
United Airlines
Wed 8/264:44 pm
ILM
-
ONT
1 stop8h 51m
United Airlines
Deal found 7/20$497

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 July 23, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$387
(American Airlines)

One-way from

$282
(Kiwi.com)

Popular in

June

Cheapest in

February

Average price

$475
Provider with most accurate pricing for Ontario-Wilmington New Hanover County flight deals.
Search Deals
Provider most trusted by Cheapflights users for Ontario-Wilmington New Hanover County flights.
Search Deals
From Ontario to Wilmington New Hanover County
Search Deals
One-way flight from Ontario to Wilmington New Hanover County
Search Deals
Highest demand for flights based on searches. 7% potential increase in price ($42 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($20 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2026
Search Deals

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 July 23, 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

Price

Cheapest round-trip
Quickest round-trip

OntarioWilmington

ONT - ILM

ONTILM

Ontario

Wed 9/9

12:17 pm-9:52 pm

1 stop6h 35m

Wilmington New Hanover County

Mon 9/14

5:50 pm-10:24 pm

1 stop7h 34m

$487

OntarioWilmington

ONT - ILM

ONTILM

Ontario

Sat 8/22

5:00 am-3:19 pm

1 stop7h 19m

Wilmington New Hanover County

Wed 8/26

4:44 pm-10:35 pm

1 stop8h 51m

$497

OntarioWilmington

ONT - ILM

ONTILM

Ontario

Thu 10/1

10:00 pm-9:37 am

1 stop8h 37m

Wilmington New Hanover County

Mon 10/5

6:30 am-11:05 am

1 stop7h 35m

$603

OntarioWilmington

ONT - ILM

ONTILM

Ontario

Tue 7/28

2:15 pm-11:57 pm

1 stop6h 42m

Wilmington New Hanover County

Tue 8/4

2:49 pm-10:32 pm

2 stops10h 43m

$609

OntarioWilmington

ONT - ILM

ONTILM

Ontario

Thu 9/10

1:18 pm-3:37 pm

2 stops23h 19m

Wilmington New Hanover County

Wed 9/16

4:44 pm-10:59 pm

1 stop9h 15m

$621

OntarioWilmington

ONT - ILM

ONTILM

Ontario

Wed 8/26

7:00 am-11:57 pm

2 stops13h 57m

Wilmington New Hanover County

Mon 8/31

4:44 pm-10:35 pm

1 stop8h 51m

$650
Cheapest one-way
Quickest one-way

OntarioWilmington

ONT - ILM

ONTILM

Ontario

Fri 8/21

12:00 pm-11:57 pm

1 stop8h 57m

$398

OntarioWilmington

ONT - ILM

ONTILM

Ontario

Fri 8/21

6:00 am-11:57 pm

2 stops14h 57m

$439

OntarioWilmington

ONT - ILM

ONTILM

Ontario

Wed 7/29

6:00 am-11:44 pm

2 stops14h 44m

$466

OntarioWilmington

ONT - ILM

ONTILM

Ontario

Wed 8/5

5:45 am-11:44 pm

2 stops14h 59m

$466

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/23

Showing 1-10 of 13 resultsSorted by cheapest first
1
2

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 July.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • 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.
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.

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 July 23, 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.
Delta
7.8
Good
8,479 reviews

Comfort

7.8

Crew

8.5

Entertainment

7.8

Boarding

8.1

Food

7.2

Overall

7.8

Reviews

1 / 20
10.0
Excellent

Michael,Sep 2023

SMF - ATL

Not sufficient leg room and three seats are very tigh.t on 737 in economy main cabin
Delta
7.8
Good
8,479 reviews
Delta
7.8
Good
8,479 reviews

Comfort

7.8

Crew

8.5

Entertainment

7.8

Boarding

8.1

Food

7.2

Overall

7.8

Reviews

1 / 20
10.0
Excellent

Michael,Sep 2023

SMF - ATL

Not sufficient leg room and three seats are very tigh.t on 737 in economy main cabin
American Airlines
7.1
Good
11,832 reviews
Delta
7.8
Good
8,479 reviews

Comfort

7.8

Crew

8.5

Entertainment

7.8

Boarding

8.1

Food

7.2

Overall

7.8

Reviews

1 / 20
10.0
Excellent

Michael,Sep 2023

SMF - ATL

Not sufficient leg room and three seats are very tigh.t on 737 in economy main cabin

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.

  • How long is the flight from Ontario to Wilmington?

    Airlines like Delta and United Airlines fly from Ontario to Wilmington in about 6h 35m. The time it takes to get you to your destination can typically vary by up to 44m. There are 2253 mi between Ontario and Wilmington. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines flying from Ontario to Wilmington round-trip?

    Flying on Delta is currently your cheapest option to Wilmington, with prices starting at $346. Another option worth looking into is American Airlines, starting at $368 round trip. You may be able to fly from Ontario to Wilmington for 34% less than the average price by searching for these airlines.

  • Can I find deals for flights from Ontario to Wilmington that include hotel bookings?

    Yes. In addition to deals on Ontario to Wilmington flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Ontario to Wilmington?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ontario to Wilmington.

  • Can I find deals for business class flights from Ontario to Wilmington?

    Yes. Cheapflights offers flight deals from Ontario to Wilmington by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Traveling to a place near Wilmington?

Book flights to Wilmington if you plan to visit one of these locations
Carolina Beach
Wrightsville Beach
Topsail Beach
Kure Beach

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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 July 23, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$346Average$537FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$368Average$527FlexibilityNo cancel feeOn-time71%

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