HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Illinois

$118+ 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 7/31. Fares are subject to change and may not be available on all flights or dates of travel.
DAY — ORD
jun. 17 — jun. 241
mar. 6/17
mar. 6/24
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Dayton to Illinois 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 Dayton to Illinois

Keep the following information in mind while searching for Dayton to Illinois flight deals. Data was last updated junio 12, 2025.

Round-trip from

$179
(American Airlines)

One-way from

$118
(Mytrip)

Popular in

June

Cheapest in

January

Average price

$418

Good round-trip deal

$322 or less

Good one-way deal

$254 or less
From Dayton to Illinois
Search Deals
One-way flight from Dayton to Illinois
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($38 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($11 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2025
Search Deals
Price to beat on a round-trip flight from Dayton to Illinois.
Search Deals
Price to beat on a one-way flight from Dayton to Illinois.
Search Deals

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 junio 12, 2025.

This American Airlines deal was found by Cheapflights users on 6/12. 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.
jue. 8/712:43 pmDAY - ORD
Nonstop1h 26mAmerican Airlines
mar. 8/129:45 amORD - DAY
Nonstop1h 17mAmerican Airlines
Deal found 6/12$179
This United Airlines deal was found by Cheapflights users on 6/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 6/305:55 pmDAY - STL
1 stop5h 50mUnited Airlines
mar. 7/15:31 pmSTL - DAY
1 stop5h 28mUnited Airlines
Deal found 6/10$199
This United Airlines deal was found by Cheapflights users on 6/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 7/1011:49 amDAY - ORD
Nonstop1h 25mUnited Airlines
jue. 7/1710:55 amORD - DAY
Nonstop1h 23mUnited Airlines
Deal found 6/10$208
This Delta deal was found by Cheapflights users on 6/9. 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.
jue. 7/177:18 pmDAY - STL
1 stop5h 35mDelta
lun. 7/285:23 pmSTL - DAY
1 stop5h 50mDelta
Deal found 6/9$229
This American Airlines deal was found by Cheapflights users on 6/9. 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.
jue. 6/266:40 amDAY - STL
1 stop6h 19mAmerican Airlines
lun. 6/304:37 pmSTL - DAY
1 stop4h 33mAmerican Airlines
Deal found 6/9$234
This Mytrip deal was found by Cheapflights users on 6/12. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 7/109:30 pmDAY - RFD
1 stop22h 49mAllegiant Air
lun. 7/148:42 amRFD - DAY
1 stop10h 56mAllegiant Air
Deal found 6/12$291
This Delta deal was found by Cheapflights users on 6/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 8/57:18 pmDAY - MDW
2 stops18h 48mDelta
mar. 8/129:15 amMDW - DAY
2 stops13h 08mDelta
Deal found 6/10$326
This Mytrip deal was found by Cheapflights users on 6/12. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 7/109:30 pmDAY - ORD
2 stops25h 00mMultiple Airlines
lun. 7/148:50 amORD - DAY
1 stop10h 48mMultiple Airlines
Deal found 6/12$326
This Delta deal was found by Cheapflights users on 6/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 10/291:15 pmDAY - ORD
1 stop11h 38mDelta
mar. 11/46:00 amORD - DAY
1 stop8h 14mDelta
Deal found 6/10$345
This Mytrip deal was found by Cheapflights users on 6/12. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 7/109:30 pmDAY - STL
3 stops22h 11mMultiple Airlines
jue. 7/1710:47 amSTL - DAY
2 stops32h 51mMultiple Airlines
Deal found 6/12$420
This United Airlines deal was found by Cheapflights users on 6/11. 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.
jue. 6/121:33 pmDAY - MLI
1 stop4h 14mUnited Airlines
vie. 7/186:30 amMLI - DAY
1 stop5h 48mUnited Airlines
Deal found 6/11$420
This American Airlines deal was found by Cheapflights users on 6/11. 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.
lun. 11/178:43 amDAY - MLI
1 stop3h 02mAmerican Airlines
vie. 11/2111:33 amMLI - DAY
1 stop6h 18mAmerican Airlines
Deal found 6/11$455

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 junio 12, 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

jue. 8/7

12:43 pm-1:09 pm

Nonstop1h 26m

Chicago O'Hare Intl

mar. 8/12

9:45 am-12:02 pm

Nonstop1h 17m

$179

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

lun. 6/30

5:55 pm-10:45 pm

1 stop5h 50m

Lambert-St Louis

mar. 7/1

5:31 pm-11:59 pm

1 stop5h 28m

$199

DaytonChicago

DAY - ORD

DAYORD

Dayton

jue. 7/10

11:49 am-12:14 pm

Nonstop1h 25m

Chicago O'Hare Intl

jue. 7/17

10:55 am-1:18 pm

Nonstop1h 23m

$208

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

jue. 7/17

7:18 pm-11:53 pm

1 stop5h 35m

Lambert-St Louis

lun. 7/28

5:23 pm-12:13 am

1 stop5h 50m

$229

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

jue. 6/26

6:40 am-11:59 am

1 stop6h 19m

Lambert-St Louis

lun. 6/30

4:37 pm-10:10 pm

1 stop4h 33m

$234

DaytonChicago

DAY - RFD

DAYRFD

Dayton

jue. 7/10

9:30 pm-7:19 pm

1 stop22h 49m

Chicago Greater Rockford

lun. 7/14

8:42 am-8:38 pm

1 stop10h 56m

$291

DaytonChicago

DAY - ORD

DAYORD

Dayton

jue. 7/10

9:30 pm-9:30 pm

2 stops25h 00m

Chicago O'Hare Intl

lun. 7/14

8:50 am-8:38 pm

1 stop10h 48m

$326

DaytonChicago

DAY - MDW

DAYMDW

Dayton

mar. 8/5

7:18 pm-1:06 pm

2 stops18h 48m

Chicago Midway

mar. 8/12

9:15 am-11:23 pm

2 stops13h 08m

$326

DaytonChicago

DAY - ORD

DAYORD

Dayton

mié. 10/29

1:15 pm-11:53 pm

1 stop11h 38m

Chicago O'Hare Intl

mar. 11/4

6:00 am-3:14 pm

1 stop8h 14m

$345

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

jue. 7/10

9:30 pm-6:41 pm

3 stops22h 11m

Lambert-St Louis

jue. 7/17

10:47 am-8:38 pm

2 stops32h 51m

$420

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/9

Showing 1-10 of 24 results
1
2
3

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 $245). Flying from Dayton to Illinois in March is currently the most expensive (average of $321). 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 junio 12, 2025.

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

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 junio 12, 2025.

The most flights from DAY to USIL are scheduled on a Tuesday (28 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (20 on average).

Rainfall in Illinois by month

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

In terms of precipitation, rainfall in Illinois ranges from 1.7 - 4.9 inches per month. August is typically the wettest month, when rainfall can reach 4.9 in. January is typically the driest time to visit Illinois when rainfall is around 1.7 in.

Temperature in Illinois by month

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

If weather is an important factor for your trip to Illinois, 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 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).

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 junio 12, 2025.
Get a feel of what it's like to fly with Delta, United Airlines and Allegiant Air from Dayton to Illinois by reading reviews from past customers. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,950 reviews

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,950 reviews
Delta
8.0
Very good
7,950 reviews

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,790 reviews
Delta
8.0
Very good
7,950 reviews

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Allegiant Air
7.3
Good
725 reviews
Delta
8.0
Very good
7,950 reviews

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,950 reviews

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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.

  • 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 Allegiant Air ($118), Delta ($179), and American Airlines ($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 (100%), GoJet (92%), United Airlines (91%).

  • What are the cheapest flights from Dayton to Illinois?

    Looking at all options, your cheapest flight can be booked for $179. While the most popular route (Dayton - Chicago O'Hare Intl) can be booked for $208 on average our data indicates $1,581 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 $245). Flying from Dayton to Illinois in March is currently the most expensive (average of $321). 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.

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 Dayton to Illinois

See prices for flight routes from nearby airports that may be better suited for you.
Detroit to Seattle flights
Detroit to Denver flights
Cleveland to Las Vegas flights
Detroit to Las Vegas flights
Cleveland to Orlando flights
Detroit to John F Kennedy Intl flights
Cincinnati to Seattle flights
Detroit to Fort Lauderdale flights
Cleveland to Seattle flights
Detroit to Orlando flights
Cincinnati to John F Kennedy Intl flights
Cincinnati to Las Vegas flights
Detroit to LaGuardia flights
Detroit to Miami flights
Columbus to Seattle flights
Cleveland to John F Kennedy Intl flights
Detroit to Newark flights
Cincinnati to Boston flights
Pittsburgh to Boston flights
Cincinnati to Orlando flights
Detroit to Los Angeles flights
Cleveland to Boston flights
Columbus to LaGuardia flights
Columbus to Newark flights
Cleveland to Atlanta flights
Cincinnati to Newark flights
Cleveland to LaGuardia flights
Cincinnati to LaGuardia flights
Columbus to John F Kennedy Intl flights
Pittsburgh to Seattle flights
Cleveland to Denver flights
Cincinnati to Denver flights
Cleveland to Dallas/Fort Worth flights
Detroit to Dallas/Fort Worth flights
Cleveland to Fort Lauderdale flights
Cleveland to Newark flights
Columbus to Boston flights
Cleveland to Los Angeles flights
Pittsburgh to Orlando flights
Detroit to Tampa flights
Pittsburgh to Denver flights
Detroit to Boston flights
Cleveland to O'Hare Intl flights
Cincinnati to Fort Lauderdale flights
Columbus to Denver flights
Detroit to San Francisco flights
Detroit to Atlanta flights
Pittsburgh to LaGuardia flights
Detroit to Reagan-National flights
Pittsburgh to O'Hare Intl flights

Top 3 airlines flying from Dayton to Illinois

Discover the top 3 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 junio 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$179Average$428FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$190Average$334FlexibilityNo cancel feeOn-time69%
DeltaCheapest$570Average$1,253FlexibilityNo cancel feeOn-timeN/A

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.