How long is the flight from Ontario to Wilmington?

Airlines like American Airlines and Delta fly from Ontario to Wilmington in about 6h 49m. The time it takes to get you to your destination can typically vary by up to 1h 42m. 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 $333. Another option worth looking into is Delta, starting at $343 round trip. You may be able to fly from Ontario to Wilmington for 30% less than the average price by searching for these airlines.

What is the cheapest day to fly from Ontario to Wilmington?

Travelers seeking maximum savings on their Ontario to Wilmington flight should consider departing on Monday evenings when fares are most often at their lowest. Thursday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

In terms of precipitation, rainfall in Wilmington ranges from 2.8 - 7.8 inches per month. September is typically the wettest month, when rainfall can reach 7.8 in. April is typically the driest time to visit Wilmington when rainfall is around 2.8 in.

If weather is an important factor for your trip to Wilmington, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 46.4 F).

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

Users have found that flying from Ontario to Wilmington on a Wednesday typically leans towards higher prices. However, this doesn’t mean you still can’t find a deal. Flexibility with other aspects of your flight can still land a great price for your trip.

How far in advance should I book a flight from Ontario to Wilmington?

To save on the cost of your flight from Ontario to Wilmington, book at least 32 days before your planned departure. Booking around this time can save you about 68% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $356 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $498.

What is the cheapest month to fly from Ontario to Wilmington?

March can be a great time to fly to Wilmington from Ontario with a flight ticket averaging about $485. Cheapflights users have found deals in the month of March for as cheap as $308. The most expensive prices can be found in the month of November.

What is the cheapest time of day to fly from ONT to ILM?

It’s optimal to fly from Ontario to Wilmington at noon. By choosing this option you can save up to 16% on the cost of your flight, compared to a flight in the morning.

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.

$243+ Flights from Ontario to Wilmington

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Cheap flight deals from Ontario to Wilmington

Round-trip from	$369 (Delta)
One-way from	$306 (United Airlines)
Popular in	March
Cheapest in	January
Average price	$518

From Ontario to Wilmington New Hanover County

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One-way flight from Ontario to Wilmington New Hanover County

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Highest demand for flights based on searches. 13% potential increase in price ($77 potential increase over avg. RT price).

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Cheapest flight prices on average. 3% potential price decrease ($18 potential savings vs. average RT price).

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Average for round-trip flights in September 2025

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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 September 16, 2025.

Thu 11/612:46 pmONT - ILM

1 stop6h 49mAmerican Airlines

Tue 11/116:20 amILM - ONT

1 stop8h 34mAmerican Airlines

Deal found 9/16

$354

Mon 10/1310:00 pmONT - ILM

1 stop8h 31mDelta

Sat 10/186:00 amILM - ONT

1 stop7h 26mDelta

Deal found 9/14

$369

Tue 10/1410:00 pmONT - ILM

1 stop8h 31mDelta

Sat 10/186:00 amILM - ONT

1 stop7h 26mDelta

Deal found 9/14

$394

Thu 10/210:00 pmONT - ILM

1 stop8h 27mDelta

Tue 10/75:55 pmILM - ONT

1 stop7h 27mDelta

Deal found 9/14

$399

Sat 9/2711:55 amONT - ILM

1 stop7h 51mDelta

Tue 10/72:21 pmILM - ONT

1 stop7h 58mDelta

Deal found 9/14

$417

Sat 9/276:00 amONT - ILM

2 stops14h 24mUnited Airlines

Tue 10/77:05 amILM - ONT

2 stops10h 57mUnited Airlines

Deal found 9/14

$424

Sat 9/2710:53 amONT - ILM

2 stops9h 39mAmerican Airlines

Tue 10/73:33 pmILM - ONT

2 stops10h 09mAmerican Airlines

Deal found 9/14

$427

Sun 9/2810:00 pmONT - ILM

1 stop8h 27mDelta

Sat 10/46:00 amILM - ONT

1 stop7h 42mDelta

Deal found 9/14

$429

Sat 9/2711:55 amONT - ILM

1 stop7h 51mDelta

Wed 10/12:36 pmILM - ONT

1 stop7h 39mDelta

Deal found 9/14

$447

Best flights from Ontario to Wilmington
Discover carefully curated flight deals from Ontario to Wilmington that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 16, 2025.

Thu 11/612:46 pmONT - ILM

1 stop6h 49mAmerican Airlines

Tue 11/116:20 amILM - ONT

1 stop8h 34mAmerican Airlines

Deal found 9/16

$354

Tue 10/1410:00 pmONT - ILM

1 stop8h 31mDelta

Sat 10/186:00 amILM - ONT

1 stop7h 26mDelta

Deal found 9/14

$394

Sat 9/276:00 amONT - ILM

2 stops14h 24mUnited Airlines

Tue 10/77:05 amILM - ONT

2 stops10h 57mUnited Airlines

Deal found 9/14

$424

Sat 10/411:55 amONT - ILM

1 stop7h 51mDelta

Tue 10/76:00 amILM - ONT

1 stop7h 26mDelta

Deal found 9/14

$399

Sat 9/2710:35 pmONT - ILM

1 stop8h 57mAmerican Airlines

Tue 10/73:33 pmILM - ONT

1 stop9h 03mAmerican Airlines

Deal found 9/14

$417

Thu 10/210:00 pmONT - ILM

1 stop8h 27mDelta

Tue 10/75:55 pmILM - ONT

1 stop7h 27mDelta

Deal found 9/14

$399

Sat 9/2711:55 amONT - ILM

1 stop7h 51mDelta

Tue 10/72:21 pmILM - ONT

1 stop7h 58mDelta

Deal found 9/14

$417

Last-minute flights from Ontario to Wilmington
Discover last-minute flight deals from Ontario to Wilmington. Data last updated September 16, 2025 and is based on user searches.

Sat 9/2711:55 amONT - ILM

1 stop7h 51mDelta

Tue 10/72:21 pmILM - ONT

1 stop7h 58mDelta

Deal found 9/14

$417

Sat 9/276:00 amONT - ILM

2 stops14h 24mUnited Airlines

Tue 10/77:05 amILM - ONT

2 stops10h 57mUnited Airlines

Deal found 9/14

$424

Sat 9/2710:53 amONT - ILM

2 stops9h 39mAmerican Airlines

Tue 10/73:33 pmILM - ONT

2 stops10h 09mAmerican Airlines

Deal found 9/14

$427

Sat 9/2711:55 amONT - ILM

1 stop7h 51mDelta

Wed 10/12:36 pmILM - ONT

1 stop7h 39mDelta

Deal found 9/14

$447

Sat 9/278:15 amONT - ILM

2 stops9h 34mAmerican Airlines

Sat 10/42:50 pmILM - ONT

1 stop9h 34mAmerican Airlines

Deal found 9/14

$452

Sun 9/2810:00 pmONT - ILM

1 stop8h 27mDelta

Sat 10/46:00 amILM - ONT

1 stop7h 42mDelta

Deal found 9/14

$429

Thu 10/210:00 pmONT - ILM

1 stop8h 27mDelta

Tue 10/75:55 pmILM - ONT

1 stop7h 27mDelta

Deal found 9/14

$399

Thu 10/210:00 pmONT - ILM

1 stop8h 27mDelta

Sat 10/116:00 amILM - ONT

1 stop7h 26mDelta

Deal found 9/14

$459

Mon 10/1310:00 pmONT - ILM

1 stop8h 31mDelta

Sat 10/186:00 amILM - ONT

1 stop7h 26mDelta

Deal found 9/14

$369

Tue 10/1410:00 pmONT - ILM

1 stop8h 31mDelta

Sat 10/186:00 amILM - ONT

1 stop7h 26mDelta

Deal found 9/14

$394

One-way flights from Ontario to Wilmington
Search for one-way flight options from Ontario to Wilmington. Find affordable one-way fares based on user searches. Data last updated September 16, 2025.

Wed 11/125:05 amONT - ILM

2 stops15h 45mUnited Airlines

Deal found 9/14

$306

Mon 12/2210:29 pmONT - ILM

1 stop8h 51mDelta

Deal found 9/15

$373

Tue 10/215:05 amONT - ILM

2 stops15h 19mUnited Airlines

Deal found 9/14

$386

Wed 10/226:00 amONT - ILM

2 stops14h 24mUnited Airlines

Deal found 9/14

$398

Sun 12/2110:29 pmONT - ILM

1 stop8h 51mDelta

Deal found 9/15

$413

Fri 11/71:29 pmONT - ILM

2 stops22h 35mUnited Airlines

Deal found 9/14

$424

Fri 12/196:10 amONT - ILM

2 stops10h 38mAmerican Airlines

Deal found 9/14

$428

Sun 12/2112:56 pmONT - ILM

2 stops8h 03mAmerican Airlines

Deal found 9/14

$448

Sat 12/2010:29 pmONT - ILM

1 stop8h 51mDelta

Deal found 9/15

$453

Cheapflights Fare Finder

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

OntarioWilmington

ONT - ILM

ONTILM

Ontario

Thu 11/6

12:46 pm-10:35 pm

1 stop6h 49m

Wilmington New Hanover County

Tue 11/11

6:20 am-11:54 am

1 stop8h 34m

$354

OntarioWilmington

ONT - ILM

ONTILM

Ontario

Tue 10/14

10:00 pm-9:31 am

1 stop8h 31m

Wilmington New Hanover County

Sat 10/18

6:00 am-10:26 am

1 stop7h 26m

$394

OntarioWilmington

ONT - ILM

ONTILM

Ontario

Sat 10/4

11:55 am-10:46 pm

1 stop7h 51m

Wilmington New Hanover County

Tue 10/7

6:00 am-10:26 am

1 stop7h 26m

$399

OntarioWilmington

ONT - ILM

ONTILM

Ontario

Thu 10/2

10:00 pm-9:27 am

1 stop8h 27m

Wilmington New Hanover County

Tue 10/7

5:55 pm-10:22 pm

1 stop7h 27m

$399

OntarioWilmington

ONT - ILM

ONTILM

Ontario

Sat 9/27

10:35 pm-10:32 am

1 stop8h 57m

Wilmington New Hanover County

Tue 10/7

3:33 pm-9:36 pm

1 stop9h 03m

$417

OntarioWilmington

ONT - ILM

ONTILM

Ontario

Sat 9/27

11:55 am-10:46 pm

1 stop7h 51m

Wilmington New Hanover County

Tue 10/7

2:21 pm-7:19 pm

1 stop7h 58m

$417

OntarioWilmington

ONT - ILM

ONTILM

Ontario

Sat 9/27

6:00 am-11:24 pm

2 stops14h 24m

Wilmington New Hanover County

Tue 10/7

7:05 am-3:02 pm

2 stops10h 57m

$424

OntarioWilmington

ONT - ILM

ONTILM

Ontario

Fri 9/26

10:28 pm-8:30 am

2 stops55h 02m

$243

OntarioWilmington

ONT - ILM

ONTILM

Ontario

Wed 11/12

5:05 am-11:50 pm

2 stops15h 45m

$306

OntarioWilmington

ONT - ILM

ONTILM

Ontario

Mon 12/22

10:29 pm-10:20 am

1 stop8h 51m

$373

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/15

Showing 1-10 of 13 results

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 $296). Flying from Ontario to Wilmington in December is currently the most expensive (average of $385). 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

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

8.0

Very good

7,954 reviews

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

8.0

Very good

7,954 reviews

Delta

8.0

Very good

7,954 reviews

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

10,000 reviews

Delta

8.0

Very good

7,954 reviews

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

How long is the flight from Ontario to Wilmington?
Airlines like American Airlines and Delta fly from Ontario to Wilmington in about 6h 49m. The time it takes to get you to your destination can typically vary by up to 1h 42m. 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 $333. Another option worth looking into is Delta, starting at $343 round trip. You may be able to fly from Ontario to Wilmington for 30% 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 $296). Flying from Ontario to Wilmington in December is currently the most expensive (average of $385). 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

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Top 2 airlines flying from Ontario to Wilmington

Airline	Cheapest	Average	Flexibility	On-time
American Airlines	Cheapest$333	Average$497	FlexibilityNo cancel fee	On-time71%
Delta	Cheapest$343	Average$453	FlexibilityNo cancel fee	On-timeN/A

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$243+ Cheap flights from Ontario to Wilmington (ONT - ILM)

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 9/26. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Ontario to Wilmington with Cheapflights

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2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Ontario to Wilmington

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Ontario to Wilmington

Cheapest flights from Ontario to WilmingtonExplore 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 September 16, 2025.

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 September 16, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Ontario to Wilmington that are best for you.

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.

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?

Reviews of airlines servicing Wilmington

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.

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?

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

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

How can I find direct flights from Ontario to Wilmington?

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

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

Traveling to a place near Wilmington?

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Alternative routes for Ontario to Wilmington

See prices for flight routes from nearby airports that may be better suited for you.

Top 2 airlines flying from Ontario to Wilmington

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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 September 16, 2025.