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$100+ Cheap flights from Illinois to Dayton (DAY)

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 1/1. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — DAY
Oct 17 — Oct 241
Fri 10/17
Fri 10/24
1 adult, Economy
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Cheap flight deals from Illinois to Dayton

Keep the following information in mind while searching for Illinois to Dayton flight deals. Data was last updated September 17, 2025.

Round-trip from

$179
(United Airlines)

One-way from

$100
(American Airlines)

Popular in

December

Cheapest in

September

Average price

$209

Good round-trip deal

$179 or less

Good one-way deal

$309 or less
From Illinois to Dayton
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One-way flight from Illinois to Dayton
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Highest demand for flights based on searches. 3% potential increase in price ($10 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($11 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Price to beat on a round-trip flight from Illinois to Dayton.
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Price to beat on a one-way flight from Illinois to Dayton.
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Find flight deals from Illinois to Dayton

Cheapest flights from Illinois to Dayton
Explore the most affordable flight options available from Illinois to Dayton. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 17, 2025.

This United Airlines deal was found by Cheapflights users on 9/15. 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 10/115:50 pmORD - DAY
Nonstop1h 19mUnited Airlines
Tue 10/141:38 pmDAY - ORD
Nonstop1h 29mUnited Airlines
Deal found 9/15$179
This American Airlines deal was found by Cheapflights users on 9/15. 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 10/99:35 pmORD - DAY
Nonstop1h 24mAmerican Airlines
Sun 10/125:18 pmDAY - ORD
Nonstop1h 32mAmerican Airlines
Deal found 9/15$180
This United Airlines deal was found by Cheapflights users on 9/14. 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 9/308:45 amORD - DAY
Nonstop1h 22mUnited Airlines
Sun 10/511:42 amDAY - ORD
Nonstop1h 28mUnited Airlines
Deal found 9/14$184
This American Airlines deal was found by Cheapflights users on 9/14. 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 9/309:03 amORD - DAY
Nonstop1h 25mAmerican Airlines
Sat 10/412:42 pmDAY - ORD
Nonstop1h 26mAmerican Airlines
Deal found 9/14$189
This American Airlines deal was found by Cheapflights users on 9/15. 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 9/258:26 pmORD - DAY
Nonstop1h 29mAmerican Airlines
Sun 9/288:17 amDAY - ORD
Nonstop1h 26mAmerican Airlines
Deal found 9/15$199
This American Airlines deal was found by Cheapflights users on 9/15. 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 10/166:32 pmMLI - DAY
1 stop4h 27mAmerican Airlines
Tue 10/218:25 amDAY - MLI
1 stop3h 27mAmerican Airlines
Deal found 9/15$229
This Delta deal was found by Cheapflights users on 9/15. 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.
Sat 11/87:05 amSTL - DAY
1 stop4h 39mDelta
Sun 11/96:34 pmDAY - STL
1 stop6h 06mDelta
Deal found 9/15$229
This American Airlines deal was found by Cheapflights users on 9/15. 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 10/109:32 amORD - DAY
Nonstop1h 23mAmerican Airlines
Tue 10/145:25 pmDAY - ORD
1 stop6h 29mAmerican Airlines
Deal found 9/15$234
This American Airlines deal was found by Cheapflights users on 9/15. 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 10/309:35 pmORD - DAY
Nonstop1h 24mAmerican Airlines
Thu 11/67:35 pmDAY - ORD
1 stop5h 05mAmerican Airlines
Deal found 9/15$235
This American Airlines deal was found by Cheapflights users on 9/16. 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 10/13:26 pmMLI - DAY
1 stop4h 35mAmerican Airlines
Sun 10/57:04 amDAY - MLI
1 stop4h 17mAmerican Airlines
Deal found 9/16$239
This United Airlines deal was found by Cheapflights users on 9/16. 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 10/175:50 pmORD - DAY
Nonstop1h 19mUnited Airlines
Mon 10/205:55 pmDAY - ORD
Nonstop1h 29mUnited Airlines
Deal found 9/16$254
This American Airlines deal was found by Cheapflights users on 9/15. 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 9/188:26 pmORD - DAY
Nonstop1h 29mAmerican Airlines
Tue 9/235:01 pmDAY - ORD
Nonstop1h 28mAmerican Airlines
Deal found 9/15$259

Cheapflights Fare Finder

 
Customize your flight search to find flights from Illinois to Dayton 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 September 17, 2025.
Use the filters below to find and compare flights from Illinois to Dayton that are best for you.

Fly from

Illinois

Fly to

Dayton

Route

Depart

Return

Price

ChicagoDayton

ORD - DAY

ORDDAY

Chicago O'Hare Intl

Sat 10/11

5:50 pm-8:09 pm

Nonstop1h 19m

Dayton

Tue 10/14

1:38 pm-2:07 pm

Nonstop1h 29m

$179

ChicagoDayton

ORD - DAY

ORDDAY

Chicago O'Hare Intl

Wed 11/26

6:02 pm-8:15 pm

Nonstop1h 13m

Dayton

Fri 11/28

9:15 am-9:41 am

Nonstop1h 26m

$179

ChicagoDayton

ORD - DAY

ORDDAY

Chicago O'Hare Intl

Tue 9/30

8:45 am-11:07 am

Nonstop1h 22m

Dayton

Sun 10/5

11:42 am-12:10 pm

Nonstop1h 28m

$184

ChicagoDayton

ORD - DAY

ORDDAY

Chicago O'Hare Intl

Tue 9/30

9:03 am-11:28 am

Nonstop1h 25m

Dayton

Sat 10/4

12:42 pm-1:08 pm

Nonstop1h 26m

$189

ChicagoDayton

ORD - DAY

ORDDAY

Chicago O'Hare Intl

Sat 9/27

9:18 pm-11:44 pm

Nonstop1h 26m

Dayton

Mon 9/29

11:42 am-12:10 pm

Nonstop1h 28m

$199

ChicagoDayton

ORD - DAY

ORDDAY

Chicago O'Hare Intl

Thu 9/25

8:26 pm-10:55 pm

Nonstop1h 29m

Dayton

Sun 9/28

5:01 pm-5:29 pm

Nonstop1h 28m

$209

ChicagoDayton

ORD - DAY

ORDDAY

Chicago O'Hare Intl

Sat 9/27

7:05 pm-9:25 pm

Nonstop1h 20m

Dayton

Sun 9/28

8:17 am-8:43 am

Nonstop1h 26m

$209

St. LouisDayton

STL - DAY

STLDAY

Lambert-St Louis

Sat 11/8

7:05 am-12:44 pm

1 stop4h 39m

Dayton

Sun 11/9

6:34 pm-11:40 pm

1 stop6h 06m

$229

St. LouisDayton

STL - DAY

STLDAY

Lambert-St Louis

Sat 12/6

8:00 am-3:30 pm

1 stop6h 30m

Dayton

Wed 12/10

2:55 pm-6:34 pm

1 stop4h 39m

$229

MolineDayton

MLI - DAY

MLIDAY

Moline Quad-City

Thu 10/16

6:32 pm-11:59 pm

1 stop4h 27m

Dayton

Tue 10/21

8:25 am-10:52 am

1 stop3h 27m

$229

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/16

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

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

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

Currently, August is the cheapest month in which you can book a flight from Illinois to Dayton (average of $325). Flying from Illinois to Dayton in March is currently the most expensive (average of $395). 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 IL to DAY?

Find hourly flight availability from Illinois to Dayton. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 17, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Illinois to Dayton as you normally would.

Weekly flight availability from Illinois to Dayton

Explore weekly flight availability from Illinois to Dayton. 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 September 17, 2025.

The most flights from USIL to DAY are scheduled on a Monday (31 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (21 on average).

Related info for your journey

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

    Dayton (DAY), located 10.0 mi from the city center, is the airport you fly into when you book flights from Illinois to Dayton.

  • How long is the flight from Illinois to Dayton?

    A quick flight from Illinois to Dayton can take about 1h 19m. United Airlines provides one of the quickest options available for as low as $179. There are 240 mi between Illinois and Dayton. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines to fly from Illinois to Dayton one-way?

    The cheapest airlines for a one-way flight from Illinois to Dayton are American Airlines ($100), Delta ($169), and United Airlines ($204).

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

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

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

    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 Illinois to Dayton on time: Envoy Air (91%), Qatar Airways (74%), Air New Zealand (73%).

  • What are the cheapest flights from Illinois to Dayton?

    The cheapest flight price from Illinois to Dayton is $179. On average you can expect to pay $274. The most popular route, (Chicago O'Hare Intl - Dayton), can usually be booked for $179.

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

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

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

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

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

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

    Currently, August is the cheapest month in which you can book a flight from Illinois to Dayton (average of $325). Flying from Illinois to Dayton in March is currently the most expensive (average of $395). 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

Traveling to a place near Dayton?

Book flights to Dayton if you plan to visit one of these locations
Troy
Springfield
Xenia
Miamisburg
Richmond

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Alternative routes for Illinois to Dayton

See prices for flight routes from nearby airports that may be better suited for you.
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Top 2 airlines flying from Illinois to Dayton

Discover the top 2 airlines that operate flights from Illinois to Dayton. 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 September 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$179Average$297FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$220Average$323FlexibilityNo cancel feeOn-time69%

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