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Wilmington

$369+ 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 12/9. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — ILM
Nov 19 — Nov 261
Wed 11/19
Wed 11/26
1 adult, Economy
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Find 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 October 20, 2025.

This Delta deal was found by Cheapflights users on 10/19. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/812:12 pmONT - ILM
1 stop8h 05mDelta
Tue 1/133:00 pmILM - ONT
1 stop9h 14mDelta
Deal found 10/19$369
This Delta deal was found by Cheapflights users on 10/19. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/812:12 pmONT - ILM
1 stop8h 05mDelta
Mon 1/122:30 pmILM - ONT
1 stop9h 44mDelta
Deal found 10/19$399
This Delta deal was found by Cheapflights users on 10/18. 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 11/2010:25 pmONT - ILM
1 stop8h 13mDelta
Thu 11/271:30 pmILM - ONT
1 stop9h 12mDelta
Deal found 10/18$422
This Delta deal was found by Cheapflights users on 10/20. 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.
Tue 11/411:36 amONT - ILM
1 stop8h 03mDelta
Sat 11/86:00 amILM - ONT
1 stop7h 26mDelta
Deal found 10/20$429
This American Airlines deal was found by Cheapflights users on 10/20. 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.
Tue 11/49:59 amONT - ILM
2 stops9h 36mAmerican Airlines
Sat 11/86:20 amILM - ONT
1 stop10h 42mAmerican Airlines
Deal found 10/20$434
This Delta deal was found by Cheapflights users on 10/19. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/912:12 pmONT - ILM
1 stop8h 05mDelta
Mon 1/122:30 pmILM - ONT
2 stops11h 22mDelta
Deal found 10/19$463
This United Airlines deal was found by Cheapflights users on 10/18. 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 11/17:00 amONT - ILM
2 stops13h 50mUnited Airlines
Tue 11/46:25 amILM - ONT
2 stops15h 11mUnited Airlines
Deal found 10/18$524
This American Airlines deal was found by Cheapflights users on 10/18. 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 11/2010:34 pmONT - ILM
1 stop6h 43mAmerican Airlines
Thu 11/276:20 amILM - ONT
2 stops12h 04mAmerican Airlines
Deal found 10/18$541
This American Airlines deal was found by Cheapflights users on 10/20. 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.
Tue 12/2312:45 pmONT - ILM
1 stop6h 26mAmerican Airlines
Sun 12/285:14 pmILM - ONT
1 stop8h 00mAmerican Airlines
Deal found 10/20$567
This United Airlines deal was found by Cheapflights users on 10/20. 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.
Tue 10/217:02 amONT - ILM
2 stops13h 22mUnited Airlines
Tue 10/286:01 amILM - ONT
2 stops14h 33mUnited Airlines
Deal found 10/20$572

Cheap 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 October 20, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$369
(Delta)

Popular in

September

Cheapest in

January

Average price

$535
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 ($71 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($18 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
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 October 20, 2025.
Use the filters below to find and compare flights from Ontario to Wilmington that are best for you.

Fly from

Ontario

Fly to

Wilmington

Route

Depart

Return

Price

OntarioWilmington

ONT - ILM

ONTILM

Ontario

Tue 12/9

12:12 pm-11:17 pm

1 stop8h 05m

Wilmington New Hanover County

Tue 1/13

3:00 pm-9:14 pm

1 stop9h 14m

$369

OntarioWilmington

ONT - ILM

ONTILM

Ontario

Wed 12/10

10:25 pm-9:41 am

1 stop8h 16m

Wilmington New Hanover County

Fri 1/9

2:30 pm-9:14 pm

1 stop9h 44m

$369

OntarioWilmington

ONT - ILM

ONTILM

Ontario

Wed 12/10

10:25 pm-9:41 am

1 stop8h 16m

Wilmington New Hanover County

Sat 1/10

4:30 pm-9:14 pm

1 stop7h 44m

$369

OntarioWilmington

ONT - ILM

ONTILM

Ontario

Tue 12/9

12:12 pm-11:17 pm

1 stop8h 05m

Wilmington New Hanover County

Sat 1/10

4:30 pm-9:14 pm

1 stop7h 44m

$369

OntarioWilmington

ONT - ILM

ONTILM

Ontario

Mon 12/8

10:25 pm-9:41 am

1 stop8h 16m

Wilmington New Hanover County

Wed 1/14

6:00 am-11:38 am

1 stop8h 38m

$369

OntarioWilmington

ONT - ILM

ONTILM

Ontario

Tue 12/9

12:12 pm-11:17 pm

1 stop8h 05m

Wilmington New Hanover County

Fri 1/9

2:30 pm-9:14 pm

1 stop9h 44m

$369

OntarioWilmington

ONT - ILM

ONTILM

Ontario

Wed 12/10

10:25 pm-9:41 am

1 stop8h 16m

Wilmington New Hanover County

Tue 1/13

3:00 pm-9:14 pm

1 stop9h 14m

$369

OntarioWilmington

ONT - ILM

ONTILM

Ontario

Wed 12/10

10:25 pm-9:41 am

1 stop8h 16m

Wilmington New Hanover County

Wed 1/14

3:00 pm-9:14 pm

1 stop9h 14m

$369

OntarioWilmington

ONT - ILM

ONTILM

Ontario

Mon 12/8

12:12 pm-11:17 pm

1 stop8h 05m

Wilmington New Hanover County

Tue 1/13

3:00 pm-9:14 pm

1 stop9h 14m

$369

OntarioWilmington

ONT - ILM

ONTILM

Ontario

Mon 12/8

12:12 pm-11:17 pm

1 stop8h 05m

Wilmington New Hanover County

Sat 1/10

4:30 pm-9:14 pm

1 stop7h 44m

$369

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/18

Showing 1-10 of 13 results
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 October.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice 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.

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, September is the cheapest month in which you can book a flight from Ontario to Wilmington (average of $178). Flying from Ontario to Wilmington in December is currently the most expensive (average of $341). 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.

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 October 20, 2025.
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
7.9
Good
7,978 reviews

Entertainment

7.9

Overall

7.9

Crew

8.5

Food

7.3

Comfort

7.9

Boarding

8.2

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
7.9
Good
7,978 reviews
Delta
7.9
Good
7,978 reviews

Entertainment

7.9

Overall

7.9

Crew

8.5

Food

7.3

Comfort

7.9

Boarding

8.2

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
7.2
Good
11,024 reviews
Delta
7.9
Good
7,978 reviews

Entertainment

7.9

Overall

7.9

Crew

8.5

Food

7.3

Comfort

7.9

Boarding

8.2

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 fly from Ontario to Wilmington in about 8h 05m. The time it takes to get you to your destination can typically vary by up to . There are 2253 mi between Ontario and Wilmington.

  • 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 $308. Another option worth looking into is American Airlines, starting at $333 round trip. You may be able to fly from Ontario to Wilmington for 38% 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.

  • What is the cheapest month to book a flight from Ontario to Wilmington?

    Currently, September is the cheapest month in which you can book a flight from Ontario to Wilmington (average of $178). Flying from Ontario to Wilmington in December is currently the most expensive (average of $341). 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.

See more FAQs

Traveling to a place near Wilmington?

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

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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 October 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$308Average$453FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$333Average$497FlexibilityNo cancel feeOn-time71%

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