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Delaware

$70+ Cheap flights from Ontario (ONT) to Delaware

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 1/23. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — ILG
Nov 26 — Dec 31
Tue 11/26
Tue 12/3
1 adult, Economy
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Cheap flight deals from Ontario to Delaware

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Delaware (USDE). 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 November 21, 2024.

Find flight deals from Ontario to Delaware

Cheapest flights from Ontario to Delaware
Explore the most affordable flight options available from Ontario to Delaware. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 21, 2024.

This CheapOair deal was found by Cheapflights users on 11/20. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/1712:59 amONT - PHL
1 stop25h 10mFrontier
Wed 12/256:40 amPHL - ONT
1 stop20h 19mFrontier
Deal found 11/20$328
This American Airlines deal was found by Cheapflights users on 11/20. 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.
Sat 12/142:54 pmONT - PHL
1 stop7h 02mAmerican Airlines
Mon 1/207:00 amPHL - ONT
1 stop7h 58mAmerican Airlines
Deal found 11/20$353
This Delta deal was found by Cheapflights users on 11/19. 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.
Thu 12/126:00 amONT - PHL
1 stop8h 34mDelta
Mon 12/165:30 amPHL - ONT
1 stop8h 31mDelta
Deal found 11/19$360
This KAYAK deal was found by Cheapflights users on 11/21. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/1111:25 amONT - PHL
1 stop6h 40mSouthwest
Sun 12/155:15 amPHL - ONT
3 stops17h 45mSouthwest
Deal found 11/21$445
This United deal was found by Cheapflights users on 11/21. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/155:05 amONT - PHL
2 stops9h 24mUnited Airlines
Mon 12/166:20 amPHL - ONT
2 stops11h 13mUnited Airlines
Deal found 11/21$470
This Alaska Airlines deal was found by Cheapflights users on 11/21. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/106:00 amONT - PHL
1 stop8h 50mAlaska Airlines
Thu 12/127:14 amPHL - ONT
2 stops18h 01mAlaska Airlines
Deal found 11/21$565

Find flights from Ontario to Delaware within your budget

Customize your flight search to find flights from Ontario to Delaware 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 2,629,791 searches. Data last updated November 21, 2024.

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Route

Depart

Return

Price

OntarioPhiladelphia

ONT - PHL

ONTPHL

Ontario

Tue 12/17

12:59 am-5:09 am

1 stop25h 10m

Philadelphia

Wed 12/25

6:40 am-11:59 pm

1 stop20h 19m

$328

OntarioPhiladelphia

ONT - PHL

ONTPHL

Ontario

Sat 12/14

2:54 pm-12:56 am

1 stop7h 02m

Philadelphia

Mon 1/20

7:00 am-11:58 am

1 stop7h 58m

$353

OntarioPhiladelphia

ONT - PHL

ONTPHL

Ontario

Thu 1/23

5:10 am-5:35 pm

2 stops9h 25m

Philadelphia

Wed 1/29

10:10 am-8:51 pm

2 stops13h 41m

$363

OntarioPhiladelphia

ONT - PHL

ONTPHL

Ontario

Thu 1/16

1:21 pm-11:55 pm

1 stop7h 34m

Philadelphia

Wed 1/22

3:55 pm-10:52 pm

1 stop9h 57m

$376

OntarioPhiladelphia

ONT - PHL

ONTPHL

Ontario

Thu 3/27

6:00 am-6:01 am

1 stop21h 01m

Philadelphia

Mon 4/7

6:35 pm-10:39 am

1 stop19h 04m

$416

OntarioPhiladelphia

ONT - PHL

ONTPHL

Ontario

Wed 5/14

5:30 am-5:45 pm

2 stops9h 15m

Philadelphia

Tue 5/20

2:40 pm-9:45 pm

2 stops10h 05m

$426

OntarioPhiladelphia

ONT - PHL

ONTPHL

Ontario

Thu 1/23

6:45 am-8:48 pm

1 stop11h 03m

$70

OntarioPhiladelphia

ONT - PHL

ONTPHL

Ontario

Sat 12/14

12:05 pm-12:55 am

1 stop9h 50m

$173

OntarioPhiladelphia

ONT - PHL

ONTPHL

Ontario

Tue 2/4

4:06 pm-5:32 pm

1 stop22h 26m

$207

OntarioPhiladelphia

ONT - PHL

ONTPHL

Ontario

Thu 12/12

6:28 pm-10:49 am

2 stops13h 21m

$208

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/21

Showing 1-10 of 14 results
1
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Best time to book a flight from Ontario to Delaware

Have a flexible travel schedule? Discover the best time to fly to Delaware 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.

Travel insights for flights from Ontario to Delaware

Get recent, data-driven insights about flights from Ontario to Delaware including ideal travel times, pricing trends, and more.

Rainfall in Delaware by month

Plan your trip to Delaware by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Delaware ranges from 2.9 - 4.3 inches per month. July is typically the wettest month, when rainfall can reach 4.3 in. February is typically the driest time to visit Delaware when rainfall is around 2.9 in.

Temperature in Delaware by month

Plan your trip to Delaware by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Delaware, 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 77.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 32.0 F).

Reviews of airlines servicing Delaware

Get insights into the airlines that provide service to Delaware. 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 Delaware. Reviews last updated November 21, 2024.
See what other customers who have flown with Frontier, American Airlines and United Airlines from Ontario to Delaware have to say. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
5,015 reviews

Boarding

8.2

Overall

8.1

Crew

8.7

Comfort

8.1

Entertainment

7.7

Food

7.2

Reviews

1 / 10

My original flight was delayed so they found this flight for me so I could arrive at a reasonable time

Southwest
8.1
Very good
5,015 reviews
Southwest
8.1
Very good
5,015 reviews

Boarding

8.2

Overall

8.1

Crew

8.7

Comfort

8.1

Entertainment

7.7

Food

7.2

Reviews

1 / 10

My original flight was delayed so they found this flight for me so I could arrive at a reasonable time

Alaska Airlines
8.0
Very good
9,458 reviews
Southwest
8.1
Very good
5,015 reviews

Boarding

8.2

Overall

8.1

Crew

8.7

Comfort

8.1

Entertainment

7.7

Food

7.2

Reviews

1 / 10

My original flight was delayed so they found this flight for me so I could arrive at a reasonable time

Delta
8.0
Very good
8,759 reviews
Southwest
8.1
Very good
5,015 reviews

Boarding

8.2

Overall

8.1

Crew

8.7

Comfort

8.1

Entertainment

7.7

Food

7.2

Reviews

1 / 10

My original flight was delayed so they found this flight for me so I could arrive at a reasonable time

United Airlines
7.4
Good
9,173 reviews
Southwest
8.1
Very good
5,015 reviews

Boarding

8.2

Overall

8.1

Crew

8.7

Comfort

8.1

Entertainment

7.7

Food

7.2

Reviews

1 / 10

My original flight was delayed so they found this flight for me so I could arrive at a reasonable time

American Airlines
7.2
Good
10,000 reviews
Southwest
8.1
Very good
5,015 reviews

Boarding

8.2

Overall

8.1

Crew

8.7

Comfort

8.1

Entertainment

7.7

Food

7.2

Reviews

1 / 10

My original flight was delayed so they found this flight for me so I could arrive at a reasonable time

Related info for your journey

Find useful and relevant information for your journey from Ontario to Delaware. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Ontario to Delaware?

    Located just 3.1 mi from the city center, Ontario (ONT) is the airport most travelers will use when flying to Delaware from Ontario.

  • What are the cheapest airlines to fly from Ontario to Delaware one-way?

    The cheapest airlines for a one-way flight from Ontario to Delaware are Frontier ($70), Delta ($173), and Alaska Airlines ($207).

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

    Yes. In addition to deals on Ontario to Delaware flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Ontario to Delaware?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ontario to Delaware.

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

    Yes. Cheapflights offers flight deals from Ontario to Delaware 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

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Alternative routes for Ontario to Delaware

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