HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Wilmington

$417+ 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 11/12. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — ILM
Sep 2 — Sep 91
Wed 9/2
Wed 9/9
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 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 August 3, 2026.

This Delta deal was found by Cheapflights users on 7/30. 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 11/1211:10 pm
ONT
-
ILM
1 stop7h 21m
Delta
Mon 11/162:26 pm
ILM
-
ONT
1 stop7h 05m
Delta
Deal found 7/30$417
This Delta deal was found by Cheapflights users on 7/29. 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 11/1211:10 pm
ONT
-
ILM
1 stop7h 21m
Delta
Sun 11/156:30 am
ILM
-
ONT
1 stop7h 40m
Delta
Deal found 7/29$460
This Delta deal was found by Cheapflights users on 8/1. 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 9/612:00 pm
ONT
-
ILM
1 stop7h 06m
Delta
Tue 9/152:30 pm
ILM
-
ONT
1 stop8h 54m
Delta
Deal found 8/1$471
This Delta deal was found by Cheapflights users on 8/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/1312:22 pm
ONT
-
ILM
2 stops20h 39m
Delta
Tue 11/176:30 am
ILM
-
ONT
1 stop7h 40m
Delta
Deal found 8/3$487
This United Airlines deal was found by Cheapflights users on 7/30. 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 7/30$489
This American Airlines deal was found by Cheapflights users on 7/31. 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 10/2310:10 pm
ONT
-
ILM
1 stop7h 16m
American Airlines
Tue 10/273:37 pm
ILM
-
ONT
1 stop7h 17m
American Airlines
Deal found 7/31$492
This United Airlines deal was found by Cheapflights users on 7/30. 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 8/295:00 am
ONT
-
ILM
1 stop7h 19m
United Airlines
Sat 9/57:00 am
ILM
-
ONT
2 stops14h 12m
United Airlines
Deal found 7/30$494
This Delta deal was found by Cheapflights users on 7/29. 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 11/1112:22 pm
ONT
-
ILM
2 stops19h 55m
Delta
Mon 11/162:26 pm
ILM
-
ONT
1 stop7h 05m
Delta
Deal found 7/29$496
This United Airlines deal was found by Cheapflights users on 8/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/37:00 am
ONT
-
ILM
2 stops13h 44m
United Airlines
Sat 11/712:00 pm
ILM
-
ONT
2 stops11h 51m
United Airlines
Deal found 8/2$499
This United Airlines deal was found by Cheapflights users on 8/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure 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
Mon 8/244:44 pm
ILM
-
ONT
1 stop8h 51m
United Airlines
Deal found 8/2$529

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 August 3, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$417
(Delta)

Popular in

June

Cheapest in

February

Average price

$527
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
Highest demand for flights based on searches. 12% potential increase in price ($74 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 August 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 August 3, 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

Thu 11/12

11:10 pm-9:31 am

1 stop7h 21m

Wilmington New Hanover County

Mon 11/16

2:26 pm-6:31 pm

1 stop7h 05m

$417

OntarioWilmington

ONT - ILM

ONTILM

Ontario

Thu 11/12

11:10 pm-9:31 am

1 stop7h 21m

Wilmington New Hanover County

Sun 11/15

6:30 am-11:10 am

1 stop7h 40m

$460

OntarioWilmington

ONT - ILM

ONTILM

Ontario

Sun 9/6

12:00 pm-10:06 pm

1 stop7h 06m

Wilmington New Hanover County

Tue 9/15

2:30 pm-8:24 pm

1 stop8h 54m

$471

OntarioWilmington

ONT - ILM

ONTILM

Ontario

Fri 11/13

12:22 pm-12:01 pm

2 stops20h 39m

Wilmington New Hanover County

Tue 11/17

6:30 am-11:10 am

1 stop7h 40m

$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

$489

OntarioWilmington

ONT - ILM

ONTILM

Ontario

Sat 8/29

7:00 am-11:57 pm

2 stops13h 57m

Wilmington New Hanover County

Sat 9/5

4:44 pm-10:35 pm

1 stop8h 51m

$494

OntarioWilmington

ONT - ILM

ONTILM

Ontario

Tue 8/25

7:00 am-11:57 pm

2 stops13h 57m

Wilmington New Hanover County

Sat 8/29

4:00 pm-8:53 pm

1 stop7h 53m

$494

OntarioWilmington

ONT - ILM

ONTILM

Ontario

Tue 11/3

7:00 am-11:44 pm

2 stops13h 44m

Wilmington New Hanover County

Sat 11/7

12:00 pm-8:51 pm

2 stops11h 51m

$499

OntarioWilmington

ONT - ILM

ONTILM

Ontario

Wed 11/11

12:22 pm-11:17 am

2 stops19h 55m

Wilmington New Hanover County

Sun 11/15

6:30 am-11:10 am

1 stop7h 40m

$539
Cheapest one-way
Quickest one-way

OntarioWilmington

ONT - ILM

ONTILM

Ontario

Sat 8/29

5:00 am-3:19 pm

1 stop7h 19m

$443

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/29

Showing 1-10 of 16 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 August.
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 August 3, 2026.
Read reviews from past customers who have flown 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.
American Airlines
7.1
Good
11,842 reviews

Overall

7.1

Crew

7.9

Food

6.4

Boarding

7.5

Entertainment

6.8

Comfort

7.2

Reviews

1 / 20
10.0
Excellent

Linda,Jul 2026

ROA - CLT

Very helpful and friendly people who pushed me where I needed to go
American Airlines
7.1
Good
11,842 reviews
American Airlines
7.1
Good
11,842 reviews

Overall

7.1

Crew

7.9

Food

6.4

Boarding

7.5

Entertainment

6.8

Comfort

7.2

Reviews

1 / 20
10.0
Excellent

Linda,Jul 2026

ROA - CLT

Very helpful and friendly people who pushed me where I needed to go

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 7h 19m. The time it takes to get you to your destination can typically vary by up to 02m. There are 2253 mi between Ontario and Wilmington. Both multi-stop and nonstop flights can be found to your destination and back.

  • What is the cheapest airline to fly from Ontario to Wilmington round-trip?

    Flying on American Airlines is currently your cheapest option to Wilmington, with prices starting at $398. You may be able to fly from Ontario to Wilmington for 25% less than the average price by searching for this airline.

  • 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

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.

Top airline flying from Ontario to Wilmington

Discover the top airline 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 August 3, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$398Average$540FlexibilityNo cancel feeOn-time71%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.