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$120+ 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 4/17. Fares are subject to change and may not be available on all flights or dates of travel.
DAY — ORD
Apr 2 — Apr 91
Wed 4/2
Wed 4/9
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 March 28, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$179
(United Airlines)

One-way from

$120
(American Airlines)

Popular in

May

Cheapest in

January

Average price

$317

Good round-trip deal

$358 or less

Good one-way deal

$242 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 ($44 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 March 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 March 28, 2025.

This United Airlines deal was found by Cheapflights users on 3/27. 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 4/172:05 pmDAY - ORD
Nonstop1h 29mUnited Airlines
Sun 4/2010:55 amORD - DAY
Nonstop1h 24mUnited Airlines
Deal found 3/27$179
This American Airlines deal was found by Cheapflights users on 3/27. 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 4/257:37 pmDAY - ORD
1 stop5h 12mAmerican Airlines
Mon 4/287:10 pmORD - DAY
Nonstop1h 21mAmerican Airlines
Deal found 3/27$219
This Delta deal was found by Cheapflights users on 3/26. 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 4/293:03 pmDAY - STL
1 stop3h 59mDelta
Mon 5/57:10 amSTL - DAY
1 stop6h 08mDelta
Deal found 3/26$229
This United Airlines deal was found by Cheapflights users on 3/26. 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 4/265:44 pmDAY - MLI
1 stop4h 51mUnited Airlines
Fri 5/25:25 pmMLI - DAY
1 stop5h 21mUnited Airlines
Deal found 3/26$229
This American Airlines deal was found by Cheapflights users on 3/26. 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 4/106:30 amDAY - MLI
1 stop5h 21mAmerican Airlines
Mon 4/145:12 amMLI - DAY
1 stop7h 00mAmerican Airlines
Deal found 3/26$239
This American Airlines deal was found by Cheapflights users on 3/26. 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 3/297:46 pmDAY - STL
1 stop5h 10mAmerican Airlines
Sat 4/55:45 amSTL - DAY
1 stop5h 42mAmerican Airlines
Deal found 3/26$279
This Mytrip deal was found by Cheapflights users on 3/28. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/199:30 pmDAY - RFD
1 stop22h 49mAllegiant Air
Mon 6/238:45 amRFD - DAY
1 stop10h 52mAllegiant Air
Deal found 3/28$349
This United Airlines deal was found by Cheapflights users on 3/26. 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 4/292:05 pmDAY - STL
2 stops9h 04mUnited Airlines
Mon 5/59:40 amSTL - DAY
1 stop6h 22mUnited Airlines
Deal found 3/26$495
This Delta deal was found by Cheapflights users on 3/27. 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 4/106:00 amDAY - MDW
1 stop11h 12mDelta
Sat 4/126:00 amMDW - DAY
1 stop13h 48mDelta
Deal found 3/27$625
This Delta deal was found by Cheapflights users on 3/27. 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 4/106:00 amDAY - ORD
1 stop15h 59mDelta
Sat 4/127:05 amORD - DAY
1 stop9h 58mDelta
Deal found 3/27$625
This Mytrip deal was found by Cheapflights users on 3/27. 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.
Thu 4/39:04 pmDAY - ORD
3 stops29h 34mMultiple Airlines
Sat 4/55:22 pmORD - DAY
3 stops25h 52mMultiple Airlines
Deal found 3/27$803

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 March 28, 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 4/17

2:05 pm-2:34 pm

Nonstop1h 29m

Chicago O'Hare Intl

Sun 4/20

10:55 am-1:19 pm

Nonstop1h 24m

$179

DaytonChicago

DAY - ORD

DAYORD

Dayton

Fri 4/25

7:37 pm-11:49 pm

1 stop5h 12m

Chicago O'Hare Intl

Mon 4/28

7:10 pm-9:31 pm

Nonstop1h 21m

$219

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Tue 4/29

3:03 pm-6:02 pm

1 stop3h 59m

Lambert-St Louis

Mon 5/5

7:10 am-2:18 pm

1 stop6h 08m

$229

DaytonMoline

DAY - MLI

DAYMLI

Dayton

Sat 4/26

5:44 pm-9:35 pm

1 stop4h 51m

Moline Quad-City

Fri 5/2

5:25 pm-11:46 pm

1 stop5h 21m

$229

DaytonMoline

DAY - MLI

DAYMLI

Dayton

Thu 4/10

6:30 am-10:51 am

1 stop5h 21m

Moline Quad-City

Mon 4/14

5:12 am-1:12 pm

1 stop7h 00m

$239

DaytonChicago

DAY - RFD

DAYRFD

Dayton

Thu 6/19

9:30 pm-7:19 pm

1 stop22h 49m

Chicago Greater Rockford

Mon 6/23

8:45 am-8:37 pm

1 stop10h 52m

$349

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Tue 4/29

2:05 pm-10:09 pm

2 stops9h 04m

Lambert-St Louis

Mon 5/5

9:40 am-5:02 pm

1 stop6h 22m

$495

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Mon 4/7

2:07 pm-7:29 pm

1 stop6h 22m

Lambert-St Louis

Wed 4/9

1:48 pm-7:54 pm

1 stop5h 06m

$527

DaytonChicago

DAY - MDW

DAYMDW

Dayton

Thu 4/10

6:00 am-4:12 pm

1 stop11h 12m

Chicago Midway

Sat 4/12

6:00 am-8:48 pm

1 stop13h 48m

$625

DaytonChicago

DAY - ORD

DAYORD

Dayton

Thu 4/10

6:00 am-8:59 pm

1 stop15h 59m

Chicago O'Hare Intl

Sat 4/12

7:05 am-6:03 pm

1 stop9h 58m

$625

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/27

Showing 1-10 of 22 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 $245). Flying from Dayton to Illinois in March is currently the most expensive (average of $323). 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 March 28, 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 March 28, 2025.

The most flights from DAY to USIL are scheduled on a Friday (24 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (5 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 March 28, 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
7,897 reviews

Boarding

8.2

Entertainment

7.9

Crew

8.5

Food

7.3

Comfort

8.0

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Delta
8.0
Very good
7,897 reviews
Delta
8.0
Very good
7,897 reviews

Boarding

8.2

Entertainment

7.9

Crew

8.5

Food

7.3

Comfort

8.0

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
United Airlines
7.4
Good
8,603 reviews
Delta
8.0
Very good
7,897 reviews

Boarding

8.2

Entertainment

7.9

Crew

8.5

Food

7.3

Comfort

8.0

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Allegiant Air
7.3
Good
731 reviews
Delta
8.0
Very good
7,897 reviews

Boarding

8.2

Entertainment

7.9

Crew

8.5

Food

7.3

Comfort

8.0

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,897 reviews

Boarding

8.2

Entertainment

7.9

Crew

8.5

Food

7.3

Comfort

8.0

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

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 American Airlines ($120), Allegiant Air ($127), and United Airlines ($150).

  • 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: Emirates (83%), Royal Jordanian (79%), Japan Airlines (79%).

  • What are the cheapest flights from Dayton to Illinois?

    Looking at all options, your cheapest flight can be booked for $155. While the most popular route (Dayton - Chicago O'Hare Intl) can be booked for $239 on average our data indicates $1,592 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 $323). 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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Alternative routes for Dayton to Illinois

See prices for flight routes from nearby airports that may be better suited for you.
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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 March 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$179Average$429FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$198Average$422FlexibilityNo cancel feeOn-time69%
DeltaCheapest$570Average$1,383FlexibilityNo cancel feeOn-timeN/A
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