How long is the flight from Ontario to Wilmington?

Airlines like United Airlines fly from Ontario to Wilmington in about 14h 57m. 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 $338 round trip. You may be able to fly from Ontario to Wilmington for 41% less than the average price by searching for these airlines.

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 time of day to fly from ONT to ILM?

When flying from Ontario to Wilmington, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Most accurate provider : When it comes to deals on Ontario-Wilmington flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Ontario-Wilmington flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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.

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.

$436+ Flights from Ontario to Wilmington

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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 December 22, 2025.

Tue 12/237:05 amONT - ILM

1 stop6h 38mDelta

Sun 12/285:31 pmILM - ONT

1 stop8h 52mDelta

Deal found 12/20

$822

Tue 12/237:10 amONT - ILM

2 stops11h 46mAmerican Airlines

Sun 12/285:14 pmILM - ONT

1 stop8h 00mAmerican Airlines

Deal found 12/21

$866

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 December 22, 2025.

Mon 1/126:00 amONT - ILM

2 stops14h 57mUnited Airlines

Wed 1/216:00 amILM - ONT

2 stops14h 43mUnited Airlines

Deal found 12/21

$439

Wed 1/215:05 amONT - ILM

2 stops15h 52mUnited Airlines

Sat 1/246:00 amILM - ONT

2 stops17h 58mUnited Airlines

Deal found 12/19

$556

Wed 1/78:00 amONT - ILM

2 stops12h 57mUnited Airlines

Sun 1/114:26 pmILM - ONT

2 stops31h 32mUnited Airlines

Deal found 12/21

$565

Thu 1/16:10 amONT - ILM

2 stops14h 34mUnited Airlines

Thu 1/86:00 amILM - ONT

2 stops14h 43mUnited Airlines

Deal found 12/21

$589

Mon 1/511:59 pmONT - ILM

2 stops12h 46mUnited Airlines

Fri 1/94:36 pmILM - ONT

2 stops23h 11mUnited Airlines

Deal found 12/21

$622

Thu 1/16:10 amONT - ILM

2 stops14h 34mUnited Airlines

Wed 1/76:00 amILM - ONT

2 stops14h 43mUnited Airlines

Deal found 12/20

$664

Sun 1/256:00 amONT - ILM

2 stops14h 57mUnited Airlines

Mon 1/266:00 amILM - ONT

2 stops14h 43mUnited Airlines

Deal found 12/20

$815

Mon 1/56:10 amONT - ILM

2 stops14h 34mUnited Airlines

Tue 1/66:00 amILM - ONT

2 stops14h 51mUnited Airlines

Deal found 12/20

$897

Sun 1/411:59 pmONT - ILM

2 stops13h 24mUnited Airlines

Thu 1/86:00 amILM - ONT

2 stops14h 43mUnited Airlines

Deal found 12/19

$1,128

Last-minute flights from Ontario to Wilmington
Discover last-minute flight deals from Ontario to Wilmington. Data last updated December 22, 2025 and is based on user searches.

Tue 12/237:05 amONT - ILM

1 stop6h 38mDelta

Sun 12/285:31 pmILM - ONT

1 stop8h 52mDelta

Deal found 12/20

$822

Tue 12/237:10 amONT - ILM

2 stops11h 46mAmerican Airlines

Sun 12/285:14 pmILM - ONT

1 stop8h 00mAmerican Airlines

Deal found 12/21

$866

Thu 1/16:10 amONT - ILM

2 stops14h 34mUnited Airlines

Thu 1/86:00 amILM - ONT

2 stops14h 43mUnited Airlines

Deal found 12/21

$589

Mon 1/511:59 pmONT - ILM

2 stops12h 46mUnited Airlines

Fri 1/94:36 pmILM - ONT

2 stops23h 11mUnited Airlines

Deal found 12/21

$622

Wed 1/78:00 amONT - ILM

2 stops12h 57mUnited Airlines

Sun 1/114:26 pmILM - ONT

2 stops31h 32mUnited Airlines

Deal found 12/21

$565

Mon 1/126:00 amONT - ILM

2 stops14h 57mUnited Airlines

Wed 1/216:00 amILM - ONT

2 stops14h 43mUnited Airlines

Deal found 12/21

$439

Wed 1/215:05 amONT - ILM

2 stops15h 52mUnited Airlines

Sat 1/246:00 amILM - ONT

2 stops17h 58mUnited Airlines

Deal found 12/21

$556

Sun 1/256:00 amONT - ILM

2 stops14h 57mUnited Airlines

Mon 1/266:00 amILM - ONT

2 stops14h 43mUnited Airlines

Deal found 12/20

$815

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 December 22, 2025.

Sat 12/276:04 amONT - ILM

2 stops14h 44mUnited Airlines

Deal found 12/21

$436

Mon 1/511:59 pmONT - ILM

2 stops12h 46mUnited Airlines

Deal found 12/21

$462

Mon 12/2910:50 amONT - ILM

1 stop8h 21mAmerican Airlines

Deal found 12/21

$485

Sat 12/2710:40 pmONT - ILM

1 stop6h 56mAmerican Airlines

Deal found 12/21

$512

Mon 12/295:10 pmONT - ILM

2 stops14h 12mDelta

Deal found 12/21

$530

Sun 12/287:05 amONT - ILM

1 stop6h 38mDelta

Deal found 12/21

$535

Fri 1/27:18 pmONT - ILM

2 stops10h 18mAmerican Airlines

Deal found 12/20

$553

Find flight deals from Ontario to Wilmington

Most accurate provider	eDreams 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$439 (United Airlines)
One-way from	$436 (United Airlines)
Popular in	September
Cheapest in	July
Average price	$436

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. 8% potential increase in price ($47 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease ($16 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in December 2025

Search Deals

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

Mon 1/12

6:00 am-11:57 pm

2 stops14h 57m

Wilmington New Hanover County

Wed 1/21

6:00 am-5:43 pm

2 stops14h 43m

$439

OntarioWilmington

ONT - ILM

ONTILM

Ontario

Wed 1/21

5:05 am-11:57 pm

2 stops15h 52m

Wilmington New Hanover County

Sat 1/24

6:00 am-8:58 pm

2 stops17h 58m

$556

OntarioWilmington

ONT - ILM

ONTILM

Ontario

Wed 1/7

8:00 am-11:57 pm

2 stops12h 57m

Wilmington New Hanover County

Sun 1/11

4:26 pm-8:58 pm

2 stops31h 32m

$565

OntarioWilmington

ONT - ILM

ONTILM

Ontario

Thu 1/1

6:10 am-11:44 pm

2 stops14h 34m

Wilmington New Hanover County

Thu 1/8

6:00 am-5:43 pm

2 stops14h 43m

$589

OntarioWilmington

ONT - ILM

ONTILM

Ontario

Mon 1/5

11:59 pm-3:45 pm

2 stops12h 46m

Wilmington New Hanover County

Fri 1/9

4:36 pm-12:47 pm

2 stops23h 11m

$622

OntarioWilmington

ONT - ILM

ONTILM

Ontario

Thu 1/1

6:10 am-11:44 pm

2 stops14h 34m

Wilmington New Hanover County

Wed 1/7

6:00 am-5:43 pm

2 stops14h 43m

$664

OntarioWilmington

ONT - ILM

ONTILM

Ontario

Sun 1/25

6:00 am-11:57 pm

2 stops14h 57m

Wilmington New Hanover County

Mon 1/26

6:00 am-5:43 pm

2 stops14h 43m

$815

OntarioWilmington

ONT - ILM

ONTILM

Ontario

Mon 1/5

6:10 am-11:44 pm

2 stops14h 34m

Wilmington New Hanover County

Tue 1/6

6:00 am-5:51 pm

2 stops14h 51m

$897

OntarioWilmington

ONT - ILM

ONTILM

Ontario

Sun 1/4

11:59 pm-4:23 pm

2 stops13h 24m

Wilmington New Hanover County

Thu 1/8

6:00 am-5:43 pm

2 stops14h 43m

$1,128

OntarioWilmington

ONT - ILM

ONTILM

Ontario

Sat 12/27

6:04 am-11:48 pm

2 stops14h 44m

$436

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/21

Showing 1-10 of 16 results

Compare providers for flights from Ontario to Wilmington

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Ontario to Wilmington in December.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy2 stars	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*1 star
eDreams	Price Accuracy3 stars	Trust 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 eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Ontario-Wilmington flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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 $347). 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

7.9

Good

8,014 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

7.9

Good

8,014 reviews

Delta

7.9

Good

8,014 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

11,052 reviews

Delta

7.9

Good

8,014 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 United Airlines fly from Ontario to Wilmington in about 14h 57m. 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 $338 round trip. You may be able to fly from Ontario to Wilmington for 41% 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 $347). 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.

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Complete your trip

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Other flights to Wilmington

Top 2 airlines flying from Ontario to Wilmington

Airline	Cheapest	Average	Flexibility	On-time
Delta	Cheapest$308	Average$453	FlexibilityNo cancel fee	On-timeN/A
American Airlines	Cheapest$338	Average$498	FlexibilityNo cancel fee	On-time71%

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$436+ 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 12/27. 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

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap 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 December 22, 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 December 22, 2025.

Find flight deals from Ontario to Wilmington

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Cheapflights Fare Finder

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

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 December.

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 December 22, 2025.