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$115+ Cheap flights from Dayton (DAY) to Illinois

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 11/24. Fares are subject to change and may not be available on all flights or dates of travel.
DAY — ORD
Dec 13 — Dec 201
Sat 12/13
Sat 12/20
1 adult, Economy
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Cheap flight deals from Dayton to Illinois

Keep the following information in mind while searching for Dayton to Illinois flight deals. Data was last updated November 13, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$179
(United Airlines)

One-way from

$115
(Delta)

Popular in

June

Cheapest in

September

Average price

$239

Good round-trip deal

$316 or less

Good one-way deal

$213 or less
Provider with most accurate pricing for Dayton-Chicago (CHI) flight deals.
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Provider most trusted by Cheapflights users for Dayton-Chicago (CHI) flights.
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From Dayton to Illinois
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One-way flight from Dayton to Illinois
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Highest demand for flights based on searches. 12% potential increase in price ($40 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($8 potential savings vs. average RT price).
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Average for round-trip flights in November 2025
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Price to beat on a round-trip flight from Dayton to Illinois.
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Price to beat on a one-way flight from Dayton to Illinois.
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Find flight deals from Dayton to Illinois

Cheapest flights from Dayton to Illinois
Explore the most affordable flight options available from Dayton to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 13, 2025.

This United Airlines deal was found by Cheapflights users on 11/11. 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 Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/232:00 pmDAY - ORD
Nonstop1h 36mUnited Airlines
Sun 12/289:20 pmORD - DAY
Nonstop1h 24mUnited Airlines
Deal found 11/11$179
This American Airlines deal was found by Cheapflights users on 11/12. 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 11/288:38 amDAY - ORD
Nonstop1h 32mAmerican Airlines
Wed 12/38:50 pmORD - DAY
Nonstop1h 19mAmerican Airlines
Deal found 11/12$194
This United Airlines deal was found by Cheapflights users on 11/12. 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 Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/289:15 amDAY - ORD
Nonstop1h 26mUnited Airlines
Tue 12/28:45 amORD - DAY
Nonstop1h 23mUnited Airlines
Deal found 11/12$209
This American Airlines deal was found by Cheapflights users on 11/12. 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 12/56:20 pmDAY - ORD
Nonstop1h 39mAmerican Airlines
Sat 12/64:05 pmORD - DAY
1 stop5h 37mAmerican Airlines
Deal found 11/12$219
This United Airlines deal was found by Cheapflights users on 11/11. 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 Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/2111:43 amDAY - ORD
Nonstop1h 29mUnited Airlines
Mon 12/16:02 pmORD - DAY
Nonstop1h 13mUnited Airlines
Deal found 11/11$224
This Delta deal was found by Cheapflights users on 11/11. 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.
Wed 12/102:55 pmDAY - STL
1 stop4h 38mDelta
Wed 12/1711:40 amSTL - DAY
1 stop5h 07mDelta
Deal found 11/11$229
This United Airlines deal was found by Cheapflights users on 11/11. 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 Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/27:15 amDAY - ORD
Nonstop1h 26mUnited Airlines
Wed 12/102:30 pmORD - DAY
Nonstop1h 21mUnited Airlines
Deal found 11/11$239
This American Airlines deal was found by Cheapflights users on 11/10. 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 12/27:23 pmDAY - ORD
1 stop13h 51mAmerican Airlines
Wed 12/39:57 amORD - DAY
Nonstop1h 23mAmerican Airlines
Deal found 11/10$241
This American Airlines deal was found by Cheapflights users on 11/10. 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.
Mon 11/2412:48 pmDAY - STL
1 stop4h 28mAmerican Airlines
Fri 11/287:11 amSTL - DAY
1 stop5h 33mAmerican Airlines
Deal found 11/10$244
This American Airlines deal was found by Cheapflights users on 11/11. 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 12/57:04 pmDAY - ORD
1 stop5h 35mAmerican Airlines
Mon 12/88:50 pmORD - DAY
Nonstop1h 19mAmerican Airlines
Deal found 11/11$244
This American Airlines deal was found by Cheapflights users on 11/11. 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 11/207:06 amDAY - ORD
1 stop6h 50mAmerican Airlines
Sun 11/239:00 pmORD - DAY
Nonstop1h 21mAmerican Airlines
Deal found 11/11$249
This American Airlines deal was found by Cheapflights users on 11/11. 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 12/237:30 pmDAY - ORD
1 stop5h 12mAmerican Airlines
Sat 12/2710:22 amORD - DAY
Nonstop1h 15mAmerican Airlines
Deal found 11/11$258

Cheapflights Fare Finder

 
Customize your flight search to find flights from Dayton to Illinois 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 November 13, 2025.
Use the filters below to find and compare flights from Dayton to Illinois that are best for you.

Fly from

Dayton

Fly to

Illinois

Route

Depart

Return

Price

DaytonChicago

DAY - ORD

DAYORD

Dayton

Tue 12/23

2:00 pm-2:36 pm

Nonstop1h 36m

Chicago O'Hare Intl

Sun 12/28

9:20 pm-11:44 pm

Nonstop1h 24m

$179

DaytonChicago

DAY - ORD

DAYORD

Dayton

Fri 12/12

6:20 pm-6:59 pm

Nonstop1h 39m

Chicago O'Hare Intl

Sat 12/13

11:51 am-2:09 pm

Nonstop1h 18m

$179

DaytonChicago

DAY - ORD

DAYORD

Dayton

Tue 12/23

8:59 am-9:28 am

Nonstop1h 29m

Chicago O'Hare Intl

Sat 12/27

9:29 pm-11:50 pm

Nonstop1h 21m

$179

DaytonChicago

DAY - ORD

DAYORD

Dayton

Mon 1/19

10:50 am-11:26 am

Nonstop1h 36m

Chicago O'Hare Intl

Mon 1/26

9:20 pm-11:44 pm

Nonstop1h 24m

$179

DaytonChicago

DAY - ORD

DAYORD

Dayton

Fri 12/5

12:51 pm-1:18 pm

Nonstop1h 27m

Chicago O'Hare Intl

Sat 12/6

8:50 pm-11:09 pm

Nonstop1h 19m

$179

DaytonChicago

DAY - ORD

DAYORD

Dayton

Fri 11/28

9:15 am-9:41 am

Nonstop1h 26m

Chicago O'Hare Intl

Tue 12/2

8:45 am-11:08 am

Nonstop1h 23m

$209

DaytonChicago

DAY - ORD

DAYORD

Dayton

Thu 12/11

12:51 pm-1:18 pm

Nonstop1h 27m

Chicago O'Hare Intl

Thu 12/18

10:30 am-5:07 pm

1 stop5h 37m

$219

DaytonChicago

DAY - ORD

DAYORD

Dayton

Mon 11/24

2:10 pm-2:39 pm

Nonstop1h 29m

Chicago O'Hare Intl

Fri 11/28

6:02 pm-8:15 pm

Nonstop1h 13m

$224

DaytonChicago

DAY - ORD

DAYORD

Dayton

Tue 11/25

7:00 am-7:26 am

Nonstop1h 26m

Chicago O'Hare Intl

Fri 11/28

9:30 pm-11:43 pm

Nonstop1h 13m

$224

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Sat 2/21

6:00 am-11:04 am

1 stop6h 04m

Lambert-St Louis

Wed 2/25

6:00 am-10:57 am

1 stop3h 57m

$229

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/11

Showing 1-10 of 60 results
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Best time to book a flight from Dayton to Illinois

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

What is the cheapest month to book a flight from Dayton to Illinois?

Currently, August is the cheapest month in which you can book a flight from Dayton to Illinois (average of $106). Flying from Dayton to Illinois in June is currently the most expensive (average of $179). 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.

What is the cheapest time of day to fly from DAY to IL?

Find hourly flight availability from Dayton to Illinois. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 13, 2025.

It’s typically best to fly out from Dayton to Illinois in the afternoon. Doing so could potentially save you 50% on the flight price compared to flying at noon, which is usually more expensive.

What is the cheapest day to fly from Dayton to Illinois?

Use this chart to determine the cheapest time to fly round-trip from Dayton to Illinois. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Dayton to Illinois flight should consider departing on Saturday mornings when fares are most often at their lowest. Tuesday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Dayton to Illinois

Explore weekly flight availability from Dayton to Illinois. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated November 13, 2025.

The most flights from DAY to USIL are scheduled on a Monday (31 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (23 on average).

Reviews of airlines servicing Illinois

Get insights into the airlines that provide service to Illinois. 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 Illinois. Reviews last updated November 13, 2025.
Read reviews from past customers who have flown United Airlines and American Airlines from Dayton to Illinois. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,017 reviews

Overall

7.4

Crew

8.1

Comfort

7.3

Entertainment

7.1

Boarding

7.7

Food

6.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Oct 2025

YUL - ORD

Crew and customer service are 5 stars. I had a lot of luggage for a very long trip and they were nothing but helpful and found solutions to every problem. It was my first time flying with United, and they really are the friendly skies. Leg room however, on 2/3 flights was terrible. Same for entertainment: There was only a seat-mounted screen on 1/3 flights. It would have been nice to have on the longest leg of the journey.
United Airlines
7.4
Good
9,017 reviews
United Airlines
7.4
Good
9,017 reviews

Overall

7.4

Crew

8.1

Comfort

7.3

Entertainment

7.1

Boarding

7.7

Food

6.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Oct 2025

YUL - ORD

Crew and customer service are 5 stars. I had a lot of luggage for a very long trip and they were nothing but helpful and found solutions to every problem. It was my first time flying with United, and they really are the friendly skies. Leg room however, on 2/3 flights was terrible. Same for entertainment: There was only a seat-mounted screen on 1/3 flights. It would have been nice to have on the longest leg of the journey.
American Airlines
7.2
Good
11,051 reviews
United Airlines
7.4
Good
9,017 reviews

Overall

7.4

Crew

8.1

Comfort

7.3

Entertainment

7.1

Boarding

7.7

Food

6.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Oct 2025

YUL - ORD

Crew and customer service are 5 stars. I had a lot of luggage for a very long trip and they were nothing but helpful and found solutions to every problem. It was my first time flying with United, and they really are the friendly skies. Leg room however, on 2/3 flights was terrible. Same for entertainment: There was only a seat-mounted screen on 1/3 flights. It would have been nice to have on the longest leg of the journey.

Related info for your journey

Find useful and relevant information for your journey from Dayton to Illinois. 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 Dayton to Illinois?

    If you book a flight to Illinois from Dayton, you will be flying from Dayton, which is the city’s only airport. Dayton (DAY) is located 10.0 mi from the center of Dayton.

  • How long is the flight from Dayton to Illinois?

    For as low as $179, United Airlines can have you in Illinois from Dayton in 1h 36m. There are 240 mi between Dayton and Illinois. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the most popular routes from Dayton to Illinois?

    The most popular flight routes from Dayton to Illinois are Dayton - Chicago O'Hare Intl, Dayton - Chicago Midway and Dayton - Lambert-St Louis.

  • What are the most reliable airlines from Dayton to Illinois?

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Dayton to Illinois on time: PSA Airlines (92%), Alaska Airlines (91%), American Airlines (91%).

  • What are the cheapest flights from Dayton to Illinois?

    Looking at all options, your cheapest flight can be booked for $178. While the most popular route (Dayton - Chicago O'Hare Intl) can be booked for $179 on average, our data indicates $945 when flying from Dayton to Illinois.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Dayton to Illinois 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 Dayton to Illinois?

    Currently, August is the cheapest month in which you can book a flight from Dayton to Illinois (average of $106). Flying from Dayton to Illinois in June is currently the most expensive (average of $179). 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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Top 2 airlines flying from Dayton to Illinois

Discover the top 2 airlines that operate flights from Dayton to Illinois. 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 November 13, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$179Average$293FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$179Average$306FlexibilityNo cancel feeOn-time71%

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