HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Wilmington

$329+ 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 4/22. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — ILM
Feb 27 — Mar 61
Fri 2/27
Fri 3/6
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 January 28, 2026.

This American Airlines deal was found by Cheapflights users on 1/27. 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 2/2010:56 am
ONT
-
ILM
1 stop8h 47m
American Airlines
Tue 3/36:44 am
ILM
-
ONT
1 stop10h 05m
American Airlines
Deal found 1/27$329
This American Airlines deal was found by Cheapflights users on 1/26. 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 4/226:00 am
ONT
-
ILM
1 stop7h 06m
American Airlines
Sat 4/253:08 pm
ILM
-
ONT
2 stops11h 38m
American Airlines
Deal found 1/26$359
This American Airlines deal was found by Cheapflights users on 1/27. 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 5/2311:59 pm
ONT
-
ILM
2 stops11h 05m
American Airlines
Tue 5/262:50 pm
ILM
-
ONT
2 stops10h 01m
American Airlines
Deal found 1/27$389
This American Airlines deal was found by Cheapflights users on 1/26. 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 4/156:00 am
ONT
-
ILM
1 stop7h 06m
American Airlines
Mon 4/204:50 pm
ILM
-
ONT
1 stop9h 56m
American Airlines
Deal found 1/26$564
This American Airlines deal was found by Cheapflights users on 1/27. 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 7/166:00 am
ONT
-
ILM
1 stop6h 44m
American Airlines
Sat 7/256:50 am
ILM
-
ONT
1 stop9h 42m
American Airlines
Deal found 1/27$585

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 January 28, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$329
(American Airlines)

Popular in

September

Cheapest in

December

Average price

$519
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. 10% potential increase in price ($58 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($17 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 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 January 28, 2026.
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

Wed 4/22

10:15 pm-9:34 am

1 stop8h 19m

Wilmington New Hanover County

Sat 4/25

4:30 pm-9:00 pm

1 stop7h 30m

$329

OntarioWilmington

ONT - ILM

ONTILM

Ontario

Fri 2/20

7:05 pm-8:36 am

2 stops10h 31m

Wilmington New Hanover County

Tue 3/3

6:44 am-1:49 pm

1 stop10h 05m

$334

OntarioWilmington

ONT - ILM

ONTILM

Ontario

Sat 5/23

11:59 pm-2:04 pm

2 stops11h 05m

Wilmington New Hanover County

Tue 5/26

2:50 pm-9:57 pm

1 stop10h 07m

$359

OntarioWilmington

ONT - ILM

ONTILM

Ontario

Wed 4/22

11:59 pm-2:09 pm

2 stops11h 10m

Wilmington New Hanover County

Sat 4/25

3:08 pm-11:46 pm

2 stops11h 38m

$428

OntarioWilmington

ONT - ILM

ONTILM

Ontario

Wed 4/15

6:00 am-4:06 pm

1 stop7h 06m

Wilmington New Hanover County

Mon 4/20

4:50 pm-11:46 pm

1 stop9h 56m

$564

OntarioWilmington

ONT - ILM

ONTILM

Ontario

Thu 7/16

10:10 pm-8:29 am

1 stop7h 19m

Wilmington New Hanover County

Sat 7/25

4:14 pm-9:57 pm

1 stop8h 43m

$585

OntarioWilmington

ONT - ILM

ONTILM

Ontario

Thu 2/12

6:00 am-11:57 pm

2 stops14h 57m

$462

OntarioWilmington

ONT - ILM

ONTILM

Ontario

Sat 3/14

6:00 am-10:13 pm

2 stops13h 13m

$1,141

OntarioWilmington

ONT - ILM

ONTILM

Ontario

Fri 3/20

11:59 pm-4:18 pm

2 stops13h 19m

$1,239

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/25

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 January.
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.

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, January is the cheapest month in which you can book a flight from Ontario to Wilmington (average of $153). Flying from Ontario to Wilmington in June is currently the most expensive (average of $308). 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 January 28, 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
7.9
Good
8,123 reviews

Boarding

8.1

Crew

8.5

Comfort

7.9

Food

7.2

Entertainment

7.8

Overall

7.9

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
8,123 reviews
Delta
7.9
Good
8,123 reviews

Boarding

8.1

Crew

8.5

Comfort

7.9

Food

7.2

Entertainment

7.8

Overall

7.9

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
11,201 reviews
Delta
7.9
Good
8,123 reviews

Boarding

8.1

Crew

8.5

Comfort

7.9

Food

7.2

Entertainment

7.8

Overall

7.9

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 American Airlines fly from Ontario to Wilmington in about 8h 19m. The time it takes to get you to your destination can typically vary by up to 2h 12m. 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 American Airlines is currently your cheapest option to Wilmington, with prices starting at $329. Another option worth looking into is Delta, starting at $343 round trip. You may be able to fly from Ontario to Wilmington for 36% 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, January is the cheapest month in which you can book a flight from Ontario to Wilmington (average of $153). Flying from Ontario to Wilmington in June is currently the most expensive (average of $308). 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

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 for Ontario to Wilmington

See prices for flight routes from nearby airports that may be better suited for you.
Los Angeles to Raleigh flights
San Francisco to Raleigh flights
Los Angeles to Charlotte flights
San Francisco to Charlotte flights
Ontario to Raleigh flights
San Diego to Charlotte flights
Ontario to Charlotte flights
Los Angeles to Knoxville flights
Los Angeles to Norfolk flights
Las Vegas to Raleigh flights
Las Vegas to Charlotte flights
San Francisco to Myrtle Beach flights
Ontario to Knoxville flights
San Diego to Raleigh flights
Santa Ana to Charlotte flights
Sacramento to Norfolk flights
San Francisco to Knoxville flights
Los Angeles to Myrtle Beach flights
Burbank to Charlotte flights
Ontario to Norfolk flights
Los Angeles to Asheville flights
San Francisco to Norfolk flights
San Jose to Charlotte flights
San Jose to Raleigh flights
Santa Ana to Raleigh flights
Ontario to Myrtle Beach flights
Los Angeles to Wilmington flights
Las Vegas to Norfolk flights
Oakland to Raleigh flights
San Diego to Knoxville flights
San Diego to Norfolk flights
Sacramento to Charlotte flights
Oakland to Charlotte flights
Sacramento to Raleigh flights
Burbank to Raleigh flights
San Francisco to Asheville flights
Santa Ana to Knoxville flights
Fresno to Raleigh flights
Sacramento to Knoxville flights
Santa Ana to Asheville flights
Los Angeles to Greensboro flights
San Diego to Myrtle Beach flights
Fresno to Norfolk flights
San Diego to Greensboro flights
San Jose to Knoxville flights
Sacramento to Asheville flights
San Francisco to Greensboro flights
Reno to Charlotte flights
San Diego to Asheville flights

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 January 28, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$329Average$498FlexibilityNo cancel feeOn-time71%
DeltaCheapest$343Average$453FlexibilityNo cancel feeOn-timeN/A

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.
Site
©2026 Cheapflights