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$125+ 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 3/14. Fares are subject to change and may not be available on all flights or dates of travel.
DAY — ORD
Feb 26 — Mar 51
Wed 2/26
Wed 3/5
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 February 21, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$239
(Delta)

One-way from

$125
(American Airlines)

Popular in

June

Cheapest in

January

Average price

$286

Good round-trip deal

$354 or less

Good one-way deal

$244 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. 10% potential increase in price ($32 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($5 potential savings vs. average RT price).
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Average for round-trip flights in February 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 February 21, 2025.

This Delta deal was found by Cheapflights users on 2/20. 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 3/76:43 pmDAY - STL
1 stop5h 54mDelta
Tue 3/111:06 pmSTL - DAY
1 stop3h 54mDelta
Deal found 2/20$239
This American Airlines deal was found by Cheapflights users on 2/20. 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.
Sun 3/236:56 pmDAY - ORD
Nonstop1h 24mAmerican Airlines
Fri 3/2811:35 amORD - DAY
Nonstop1h 11mAmerican Airlines
Deal found 2/20$249
This United Airlines deal was found by Cheapflights users on 2/20. 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.
Mon 3/35:50 pmDAY - ORD
Nonstop1h 32mUnited Airlines
Sat 3/810:55 amORD - DAY
Nonstop1h 19mUnited Airlines
Deal found 2/20$250
This Mytrip deal was found by Cheapflights users on 2/20. 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.
Sun 4/69:04 pmDAY - MLI
1 stop21h 50mAllegiant Air
Sun 4/138:27 amMLI - DAY
1 stop23h 48mAllegiant Air
Deal found 2/20$332
This United Airlines deal was found by Cheapflights users on 2/20. 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 3/207:15 amDAY - STL
1 stop5h 57mUnited Airlines
Thu 3/276:30 amSTL - DAY
1 stop5h 44mUnited Airlines
Deal found 2/20$334
This American Airlines deal was found by Cheapflights users on 2/20. 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 3/67:46 pmDAY - STL
1 stop4h 54mAmerican Airlines
Sun 3/97:13 amSTL - DAY
1 stop4h 56mAmerican Airlines
Deal found 2/20$343
This Mytrip deal was found by Cheapflights users on 2/20. 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 2/273:22 pmDAY - RFD
1 stop27h 19mAllegiant Air
Mon 3/310:50 amRFD - DAY
1 stop6h 56mAllegiant Air
Deal found 2/20$364
This American Airlines deal was found by Cheapflights users on 2/19. 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.
Wed 3/1212:45 pmDAY - EVV
1 stop10h 12mAmerican Airlines
Fri 3/142:51 pmEVV - DAY
1 stop29h 10mAmerican Airlines
Deal found 2/19$469
This Delta deal was found by Cheapflights users on 2/20. 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 3/48:14 amDAY - ORD
1 stop11h 27mDelta
Sun 3/96:00 amORD - DAY
1 stop13h 27mDelta
Deal found 2/20$471
This United Airlines deal was found by Cheapflights users on 2/20. 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 3/77:15 amDAY - MLI
1 stop8h 59mUnited Airlines
Tue 3/116:30 amMLI - DAY
1 stop5h 44mUnited Airlines
Deal found 2/20$532
This American Airlines deal was found by Cheapflights users on 2/20. 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.
Sun 4/61:44 pmDAY - MLI
2 stops9h 31mAmerican Airlines
Sun 4/136:00 amMLI - DAY
2 stops9h 57mAmerican Airlines
Deal found 2/20$749
This Delta deal was found by Cheapflights users on 2/20. 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 3/611:14 amDAY - MDW
1 stop6h 06mDelta
Fri 3/710:57 amMDW - DAY
1 stop6h 01mDelta
Deal found 2/20$1,103

Find flights from Dayton to Illinois within your budget

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 February 21, 2025.

Fly from

Dayton

Fly to

Illinois

Route

Depart

Return

Price

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Fri 3/7

6:43 pm-11:37 pm

1 stop5h 54m

Lambert-St Louis

Tue 3/11

1:06 pm-6:00 pm

1 stop3h 54m

$239

DaytonChicago

DAY - ORD

DAYORD

Dayton

Sat 3/29

12:45 pm-1:09 pm

Nonstop1h 24m

Chicago O'Hare Intl

Sat 4/5

7:10 pm-9:31 pm

Nonstop1h 21m

$249

DaytonChicago

DAY - ORD

DAYORD

Dayton

Mon 3/3

5:50 pm-6:22 pm

Nonstop1h 32m

Chicago O'Hare Intl

Wed 3/5

9:06 pm-11:22 pm

Nonstop1h 16m

$250

DaytonMoline

DAY - MLI

DAYMLI

Dayton

Sun 4/6

9:04 pm-5:54 pm

1 stop21h 50m

Moline Quad-City

Sun 4/13

8:27 am-9:15 am

1 stop23h 48m

$332

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Thu 3/20

7:15 am-12:12 pm

1 stop5h 57m

Lambert-St Louis

Thu 3/27

6:30 am-1:14 pm

1 stop5h 44m

$334

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Thu 3/6

7:46 pm-11:40 pm

1 stop4h 54m

Lambert-St Louis

Sun 3/9

7:13 am-1:09 pm

1 stop4h 56m

$343

DaytonEvansville

DAY - EVV

DAYEVV

Dayton

Wed 3/12

12:45 pm-9:57 pm

1 stop10h 12m

Evansville Dress Regional

Fri 3/14

2:51 pm-9:01 pm

1 stop29h 10m

$469

DaytonChicago

DAY - ORD

DAYORD

Dayton

Tue 3/4

8:14 am-7:55 pm

1 stop12h 41m

Chicago O'Hare Intl

Sun 3/9

6:00 am-8:27 pm

1 stop13h 27m

$471

DaytonMoline

DAY - MLI

DAYMLI

Dayton

Fri 3/7

7:15 am-3:14 pm

1 stop8h 59m

Moline Quad-City

Tue 3/11

6:30 am-1:14 pm

1 stop5h 44m

$532

DaytonMoline

DAY - MLI

DAYMLI

Dayton

Sun 4/6

1:44 pm-10:15 pm

2 stops9h 31m

Moline Quad-City

Sun 4/13

6:00 am-4:57 pm

2 stops9h 57m

$749

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/19

Showing 1-10 of 15 results
1
2

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.

Travel insights for flights from Dayton to Illinois

Get recent, data-driven insights about flights from Dayton to Illinois including ideal travel times, pricing trends, and more.

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 February 21, 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 February 21, 2025.

The most flights from DAY to USIL are scheduled on a Thursday (24 on average). You will have fewer flight options on Tuesday, 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 February 21, 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
8,213 reviews

Food

7.3

Overall

8.0

Comfort

8.0

Crew

8.5

Entertainment

7.9

Boarding

8.2

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
8,213 reviews
Delta
8.0
Very good
8,213 reviews

Food

7.3

Overall

8.0

Comfort

8.0

Crew

8.5

Entertainment

7.9

Boarding

8.2

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
8,759 reviews
Delta
8.0
Very good
8,213 reviews

Food

7.3

Overall

8.0

Comfort

8.0

Crew

8.5

Entertainment

7.9

Boarding

8.2

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
765 reviews
Delta
8.0
Very good
8,213 reviews

Food

7.3

Overall

8.0

Comfort

8.0

Crew

8.5

Entertainment

7.9

Boarding

8.2

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
8,213 reviews

Food

7.3

Overall

8.0

Comfort

8.0

Crew

8.5

Entertainment

7.9

Boarding

8.2

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 ($125), United Airlines ($155), and Allegiant Air ($224).

  • 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: Alaska Airlines (83%), Japan Airlines (77%), British Airways (76%).

  • What are the cheapest flights from Dayton to Illinois?

    Looking at all options, your cheapest flight can be booked for $154. While the most popular route (Dayton - Chicago O'Hare Intl) can be booked for $249 on average our data indicates $916 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.

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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 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 February 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$178Average$424FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$193Average$421FlexibilityNo cancel feeOn-time69%
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