Delaware

$53+ Cheap flights from Illinois 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 1/1. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — ILG
Dec 24 — Dec 311
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Illinois to Delaware 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 Illinois to Delaware

Discover tips and strategies to find the most affordable flight options for your journey from Illinois (USIL) 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 December 19, 2024.

Round-trip from

$108
(Mytrip)

One-way from

$53
(CheapOair)
From Illinois to Delaware
One-way flight from Illinois to Delaware

Find flight deals from Illinois to Delaware

Cheapest flights from Illinois to Delaware
Explore the most affordable flight options available from Illinois to Delaware. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 19, 2024.

This Mytrip deal was found by Cheapflights users on 12/18. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/317:45 amMDW - PHL
Nonstop2h 03mFrontier
Sun 1/1210:15 pmPHL - MDW
1 stop13h 06mFrontier
Deal found 12/18$149
This Kiwi.com deal was found by Cheapflights users on 12/18. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/2510:22 pmORD - PHL
Nonstop2h 07mFrontier
Sat 1/47:07 pmPHL - ORD
1 stop25h 29mFrontier
Deal found 12/18$162
This Delta deal was found by Cheapflights users on 12/17. 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 12/314:50 pmMDW - PHL
1 stop5h 39mDelta
Tue 1/75:40 amPHL - MDW
1 stop5h 32mDelta
Deal found 12/17$220
This Delta deal was found by Cheapflights users on 12/17. 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 12/315:30 pmORD - PHL
1 stop4h 44mDelta
Wed 1/16:00 amPHL - ORD
1 stop4h 21mDelta
Deal found 12/17$240
This Trip.com deal was found by Cheapflights users on 12/18. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/307:30 pmORD - PHL
1 stop14h 30mMultiple Airlines
Sat 1/47:07 pmPHL - ORD
1 stop25h 29mMultiple Airlines
Deal found 12/18$267
This CheapOair deal was found by Cheapflights users on 12/18. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/193:53 pmSTL - PHL
1 stop28h 46mFrontier
Mon 1/67:30 amPHL - STL
1 stop13h 59mFrontier
Deal found 12/18$278
This American Airlines deal was found by Cheapflights users on 12/17. 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 12/316:31 amORD - PHL
Nonstop2h 02mAmerican Airlines
Wed 1/19:24 amPHL - ORD
Nonstop2h 29mAmerican Airlines
Deal found 12/17$315
This Southwest deal was found by Cheapflights users on 12/18. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/258:30 amMDW - PHL
Nonstop1h 55mSouthwest
Wed 1/17:35 amPHL - MDW
Nonstop2h 10mSouthwest
Deal found 12/18$316
This Mytrip deal was found by Cheapflights users on 12/17. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/319:35 pmORD - PHL
2 stops22h 24mSpirit Airlines
Sun 1/52:45 pmPHL - ORD
2 stops10h 48mSpirit Airlines
Deal found 12/17$330
This Southwest deal was found by Cheapflights users on 12/18. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/3111:25 amORD - PHL
1 stop9h 20mSouthwest
Wed 1/16:15 amPHL - ORD
2 stops7h 45mSouthwest
Deal found 12/18$339
This Sun Country Air deal was found by Cheapflights users on 12/18. 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 Sun Country Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/307:30 pmORD - PHL
1 stop14h 30mSun Country Air
Wed 1/112:22 pmPHL - ORD
1 stop23h 35mSun Country Air
Deal found 12/18$350
This CheapOair deal was found by Cheapflights users on 12/18. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/314:27 pmSTL - PHL
1 stop6h 38mMultiple Airlines
Wed 1/110:47 pmPHL - STL
1 stop25h 41mMultiple Airlines
Deal found 12/18$355

Find flights from Illinois to Delaware within your budget

Customize your flight search to find flights from Illinois 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 2,558,603 searches. Data last updated December 19, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

ChicagoPhiladelphia

ORD - PHL

ORDPHL

Chicago O'Hare Intl

Thu 1/23

10:33 am-7:05 pm

1 stop7h 32m

Philadelphia

Mon 1/27

4:42 pm-10:27 pm

1 stop6h 45m

$107

ChicagoPhiladelphia

MDW - PHL

MDWPHL

Chicago Midway

Mon 1/6

6:00 am-12:41 am

1 stop17h 41m

Philadelphia

Mon 1/13

6:05 am-2:58 pm

1 stop9h 53m

$108

St. LouisPhiladelphia

STL - PHL

STLPHL

Lambert-St Louis

Sat 1/25

5:05 pm-7:59 am

1 stop13h 54m

Philadelphia

Mon 1/27

10:18 pm-11:31 pm

1 stop26h 13m

$118

ChicagoPhiladelphia

ORD - PHL

ORDPHL

Chicago O'Hare Intl

Thu 1/9

10:35 am-7:02 pm

1 stop7h 27m

Philadelphia

Tue 1/14

6:00 am-12:29 pm

1 stop7h 29m

$126

ChicagoPhiladelphia

ORD - PHL

ORDPHL

Chicago O'Hare Intl

Sat 2/1

2:02 pm-10:16 pm

1 stop7h 14m

Philadelphia

Sat 2/8

6:00 am-12:29 pm

1 stop7h 29m

$157

ChicagoPhiladelphia

ORD - PHL

ORDPHL

Chicago O'Hare Intl

Fri 6/6

8:40 am-3:01 pm

1 stop5h 21m

Philadelphia

Sun 6/8

10:10 am-5:20 pm

1 stop8h 10m

$180

ChicagoPhiladelphia

ORD - PHL

ORDPHL

Chicago O'Hare Intl

Tue 1/14

2:52 pm-5:55 pm

Nonstop2h 03m

Philadelphia

Tue 1/21

3:55 pm-5:24 pm

Nonstop2h 29m

$181

St. LouisPhiladelphia

STL - PHL

STLPHL

Lambert-St Louis

Thu 1/23

4:28 pm-9:57 am

1 stop16h 29m

Philadelphia

Thu 1/30

5:20 am-11:31 pm

1 stop19h 11m

$195

ChicagoPhiladelphia

MDW - PHL

MDWPHL

Chicago Midway

Tue 2/25

12:25 pm-3:15 pm

Nonstop1h 50m

Philadelphia

Thu 2/27

1:45 pm-3:00 pm

Nonstop2h 15m

$202

St. LouisPhiladelphia

STL - PHL

STLPHL

Lambert-St Louis

Tue 1/7

4:27 pm-9:42 am

1 stop16h 15m

Philadelphia

Wed 1/8

4:31 pm-2:43 pm

1 stop23h 12m

$215

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/18

Showing 1-10 of 52 results
1
2
3
...
6

Best time to book a flight from Illinois to Delaware

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

Get recent, data-driven insights about flights from Illinois 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 December 19, 2024.
Read reviews from past customers who have flown United Airlines, Spirit Airlines and American Airlines from Illinois to Delaware. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
8.1
Very good
4,836 reviews

Comfort

8.1

Food

7.2

Crew

8.7

Boarding

8.2

Overall

8.1

Entertainment

7.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

8.1
Very good
4,836 reviews
8.1
Very good
4,836 reviews

Comfort

8.1

Food

7.2

Crew

8.7

Boarding

8.2

Overall

8.1

Entertainment

7.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

8.0
Very good
8,600 reviews
8.1
Very good
4,836 reviews

Comfort

8.1

Food

7.2

Crew

8.7

Boarding

8.2

Overall

8.1

Entertainment

7.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

7.4
Good
3,274 reviews
8.1
Very good
4,836 reviews

Comfort

8.1

Food

7.2

Crew

8.7

Boarding

8.2

Overall

8.1

Entertainment

7.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

7.4
Good
9,048 reviews
8.1
Very good
4,836 reviews

Comfort

8.1

Food

7.2

Crew

8.7

Boarding

8.2

Overall

8.1

Entertainment

7.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

7.2
Good
10,000 reviews
8.1
Very good
4,836 reviews

Comfort

8.1

Food

7.2

Crew

8.7

Boarding

8.2

Overall

8.1

Entertainment

7.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Related info for your journey

Find useful and relevant information for your journey from Illinois to Delaware. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • What are the cheapest airlines to fly from Illinois to Delaware one-way?

    To fly one-way, consider booking your trip with Frontier, which is currently one of the cheapest options available, starting at $53. Spirit Airlines flights start at $73 while deals on JetBlue start at $90 one-way.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Illinois 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

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 Illinois to Delaware

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