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$159+ 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 11/12. Fares are subject to change and may not be available on all flights or dates of travel.
DAY — ORD
Nov 29 — Dec 61
Sat 11/29
Sat 12/6
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 October 30, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$179
(United Airlines)

One-way from

$163
(Delta)

Popular in

June

Cheapest in

September

Average price

$364

Good round-trip deal

$304 or less

Good one-way deal

$215 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. 11% potential increase in price ($36 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($7 potential savings vs. average RT price).
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Average for round-trip flights in October 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 October 30, 2025.

This United Airlines deal was found by Cheapflights users on 10/29. 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.
Thu 11/207:00 amDAY - ORD
Nonstop1h 26mUnited Airlines
Sun 11/236:02 pmORD - DAY
Nonstop1h 13mUnited Airlines
Deal found 10/29$179
This American Airlines deal was found by Cheapflights users on 10/29. 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 11/2012:48 pmDAY - ORD
Nonstop1h 29mAmerican Airlines
Sun 11/239:00 pmORD - DAY
Nonstop1h 21mAmerican Airlines
Deal found 10/29$180
This United Airlines deal was found by Cheapflights users on 10/30. 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 11/1811:43 amDAY - ORD
Nonstop1h 29mUnited Airlines
Sun 11/238:45 amORD - DAY
Nonstop1h 23mUnited Airlines
Deal found 10/30$194
This United Airlines deal was found by Cheapflights users on 10/29. 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.
Thu 11/1311:43 amDAY - ORD
Nonstop1h 29mUnited Airlines
Sun 11/168:45 amORD - DAY
Nonstop1h 23mUnited Airlines
Deal found 10/29$209
This American Airlines deal was found by Cheapflights users on 10/30. 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 12/127:04 pmDAY - ORD
1 stop5h 35mAmerican Airlines
Sun 12/1411:51 amORD - DAY
Nonstop1h 18mAmerican Airlines
Deal found 10/30$219
This American Airlines deal was found by Cheapflights users on 10/29. 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 11/66:00 amDAY - ORD
Nonstop1h 24mAmerican Airlines
Thu 11/133:00 pmORD - DAY
Nonstop1h 14mAmerican Airlines
Deal found 10/29$224
This American Airlines deal was found by Cheapflights users on 10/30. 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 11/138:28 amDAY - ORD
1 stop6h 46mAmerican Airlines
Sun 11/169:40 pmORD - DAY
Nonstop1h 19mAmerican Airlines
Deal found 10/30$234
This Kiwi.com deal was found by Cheapflights users on 10/30. 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.
Thu 12/49:18 pmDAY - ORD
1 stop25h 30mMultiple Airlines
Sun 12/71:34 pmORD - DAY
1 stop17h 42mMultiple Airlines
Deal found 10/30$235
This United Airlines deal was found by Cheapflights users on 10/29. 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.
Sat 11/811:43 amDAY - ORD
Nonstop1h 29mUnited Airlines
Sun 11/911:05 amORD - DAY
Nonstop1h 23mUnited Airlines
Deal found 10/29$239
This American Airlines deal was found by Cheapflights users on 10/29. 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 12/28:38 amDAY - ORD
Nonstop1h 32mAmerican Airlines
Tue 12/211:37 amORD - DAY
1 stop11h 01mAmerican Airlines
Deal found 10/29$241
This Delta deal was found by Cheapflights users on 10/30. 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.
Fri 11/1411:19 amDAY - STL
1 stop5h 48mDelta
Sat 11/157:05 amSTL - DAY
1 stop4h 32mDelta
Deal found 10/30$259
This United Airlines deal was found by Cheapflights users on 10/28. 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.
Wed 11/127:00 amDAY - MLI
1 stop5h 50mUnited Airlines
Sun 11/163:55 pmMLI - DAY
1 stop3h 20mUnited Airlines
Deal found 10/28$259

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 October 30, 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

Thu 1/1

2:00 pm-2:36 pm

Nonstop1h 36m

Chicago O'Hare Intl

Mon 1/5

9:20 pm-11:44 pm

Nonstop1h 24m

$179

DaytonChicago

DAY - ORD

DAYORD

Dayton

Fri 11/28

12:48 pm-1:16 pm

Nonstop1h 28m

Chicago O'Hare Intl

Wed 12/3

3:37 pm-5:57 pm

Nonstop1h 20m

$179

DaytonChicago

DAY - ORD

DAYORD

Dayton

Thu 11/20

7:00 am-7:26 am

Nonstop1h 26m

Chicago O'Hare Intl

Sun 11/23

6:02 pm-8:15 pm

Nonstop1h 13m

$179

DaytonChicago

DAY - ORD

DAYORD

Dayton

Thu 11/20

12:48 pm-1:17 pm

Nonstop1h 29m

Chicago O'Hare Intl

Sun 11/23

7:29 pm-9:43 pm

Nonstop1h 14m

$179

DaytonChicago

DAY - ORD

DAYORD

Dayton

Wed 11/26

7:00 am-7:26 am

Nonstop1h 26m

Chicago O'Hare Intl

Sat 11/29

2:54 pm-5:13 pm

Nonstop1h 19m

$179

DaytonChicago

DAY - ORD

DAYORD

Dayton

Tue 11/25

7:00 am-7:26 am

Nonstop1h 26m

Chicago O'Hare Intl

Sun 11/30

11:05 am-1:28 pm

Nonstop1h 23m

$179

DaytonChicago

DAY - ORD

DAYORD

Dayton

Fri 11/21

2:10 pm-2:39 pm

Nonstop1h 29m

Chicago O'Hare Intl

Sat 11/29

8:45 am-11:08 am

Nonstop1h 23m

$179

DaytonChicago

DAY - ORD

DAYORD

Dayton

Fri 11/21

7:00 am-7:26 am

Nonstop1h 26m

Chicago O'Hare Intl

Sun 11/23

8:45 am-11:08 am

Nonstop1h 23m

$179

DaytonChicago

DAY - ORD

DAYORD

Dayton

Thu 11/27

7:00 am-7:26 am

Nonstop1h 26m

Chicago O'Hare Intl

Thu 12/4

5:50 pm-8:09 pm

Nonstop1h 19m

$179

DaytonChicago

DAY - ORD

DAYORD

Dayton

Sat 1/24

9:05 am-9:40 am

Nonstop1h 35m

Chicago O'Hare Intl

Sun 1/25

9:20 pm-11:44 pm

Nonstop1h 24m

$179

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/28

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 October 30, 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. Monday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

How much does it cost to fly round-trip from Dayton to Illinois?

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 October 30, 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
8,998 reviews

Comfort

7.3

Boarding

7.7

Food

6.6

Overall

7.4

Entertainment

7.1

Crew

8.1

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
8,998 reviews
United Airlines
7.4
Good
8,998 reviews

Comfort

7.3

Boarding

7.7

Food

6.6

Overall

7.4

Entertainment

7.1

Crew

8.1

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
11,035 reviews
United Airlines
7.4
Good
8,998 reviews

Comfort

7.3

Boarding

7.7

Food

6.6

Overall

7.4

Entertainment

7.1

Crew

8.1

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 28m. 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 cheapest airlines to fly from Dayton to Illinois one-way?

    The cheapest airlines for a one-way flight from Dayton to Illinois are United Airlines ($159), Delta ($163), and Allegiant Air ($194).

  • 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: Envoy Air (90%), Alaska Airlines (87%), GoJet (86%).

  • 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 $971 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 October 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$179Average$294FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$179Average$306FlexibilityNo cancel feeOn-time71%

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