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$164+ 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 7/23. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — DAY
Jul 9 — Jul 161
Thu 7/9
Thu 7/16
1 adult, Economy
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Cheap 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 June 9, 2026.

This American Airlines deal was found by Cheapflights users on 6/4. 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 7/19:30 am
ORD
-
DAY
Nonstop1h 24m
American Airlines
Wed 7/84:07 pm
DAY
-
ORD
Nonstop1h 35m
American Airlines
Deal found 6/4$239
This American Airlines deal was found by Cheapflights users on 6/4. 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 6/2510:00 pm
ORD
-
DAY
Nonstop1h 18m
American Airlines
Sun 6/288:17 am
DAY
-
ORD
Nonstop1h 33m
American Airlines
Deal found 6/4$240
This United Airlines deal was found by Cheapflights users on 6/8. 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 7/168:40 am
ORD
-
DAY
Nonstop1h 24m
United Airlines
Mon 7/276:15 pm
DAY
-
ORD
Nonstop1h 36m
United Airlines
Deal found 6/8$249
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.
Thu 7/28:39 pm
ORD
-
DAY
Nonstop1h 22m
American Airlines
Sun 7/54:07 pm
DAY
-
ORD
Nonstop1h 35m
American Airlines
Deal found 6/9$250
This American Airlines deal was found by Cheapflights users on 6/6. 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 8/48:39 pm
ORD
-
DAY
Nonstop1h 22m
American Airlines
Sun 8/95:46 pm
DAY
-
ORD
Nonstop1h 40m
American Airlines
Deal found 6/6$264
This American Airlines deal was found by Cheapflights users on 6/5. 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 7/248:39 pm
ORD
-
DAY
Nonstop1h 22m
American Airlines
Mon 7/274:07 pm
DAY
-
ORD
Nonstop1h 35m
American Airlines
Deal found 6/5$269
This United Airlines deal was found by Cheapflights users on 6/6. 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 7/41:18 pm
STL
-
DAY
1 stop6h 04m
United Airlines
Sat 7/116:15 pm
DAY
-
STL
1 stop4h 11m
United Airlines
Deal found 6/6$271
This American Airlines deal was found by Cheapflights users on 6/7. 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 6/191:16 pm
ORD
-
DAY
Nonstop1h 24m
American Airlines
Sun 6/218:17 am
DAY
-
ORD
Nonstop1h 33m
American Airlines
Deal found 6/7$294
This American Airlines deal was found by Cheapflights users on 6/4. 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 6/118:32 am
ORD
-
DAY
Nonstop1h 22m
American Airlines
Tue 6/168:17 am
DAY
-
ORD
Nonstop1h 33m
American Airlines
Deal found 6/4$299
This Delta deal was found by Cheapflights users on 6/8. 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.
Mon 6/293:57 pm
STL
-
DAY
1 stop4h 49m
Delta
Mon 7/66:33 pm
DAY
-
STL
1 stop4h 45m
Delta
Deal found 6/8$299
This Delta deal was found by Cheapflights users on 6/8. 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 12/1711:51 am
STL
-
DAY
1 stop4h 58m
Delta
Tue 12/226:40 pm
DAY
-
STL
1 stop5h 59m
Delta
Deal found 6/8$300
This United Airlines deal was found by Cheapflights users on 6/4. 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 10/316:20 pm
ORD
-
DAY
Nonstop1h 11m
United Airlines
Wed 11/49:00 am
DAY
-
ORD
Nonstop1h 24m
United Airlines
Deal found 6/4$309

Find flight deals from Illinois to Dayton

Keep the following information in mind while searching for Illinois to Dayton flight deals. Data was last updated June 9, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$239
(American Airlines)

One-way from

$164
(United Airlines)

Popular in

June

Cheapest in

September

Average price

$423

Good round-trip deal

$269 or less

Good one-way deal

$264 or less
Provider with most accurate pricing for Chicago (CHI)-Dayton flight deals.
Search Deals
Provider most trusted by Cheapflights users for Chicago (CHI)-Dayton flights.
Search Deals
From Illinois to Dayton
Search Deals
One-way flight from Illinois to Dayton
Search Deals
Highest demand for flights based on searches. 18% potential increase in price ($63 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($13 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2026
Search Deals
Price to beat on a round-trip flight from Illinois to Dayton.
Search Deals
Price to beat on a one-way flight from Illinois to Dayton.
Search Deals

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 June 9, 2026.
Use the filters below to find and compare flights from Illinois to Dayton that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

ChicagoDayton

ORD - DAY

ORDDAY

Chicago O'Hare Intl

Fri 7/3

8:40 am-11:04 am

Nonstop1h 24m

Dayton

Sun 7/5

5:40 am-5:55 am

Nonstop1h 15m

$249

St. LouisDayton

STL - DAY

STLDAY

Lambert-St Louis

Thu 10/29

6:00 am-1:59 pm

1 stop6h 59m

Dayton

Sun 11/1

6:00 am-10:48 am

1 stop5h 48m

$299

ChicagoDayton

ORD - DAY

ORDDAY

Chicago O'Hare Intl

Fri 7/10

8:40 am-11:04 am

Nonstop1h 24m

Dayton

Sun 7/12

7:15 am-7:55 am

Nonstop1h 40m

$309

ChicagoDayton

ORD - DAY

ORDDAY

Chicago O'Hare Intl

Wed 7/29

1:30 pm-7:01 pm

1 stop4h 31m

Dayton

Mon 8/10

6:15 pm-6:51 pm

Nonstop1h 36m

$318

ChicagoDayton

ORD - DAY

ORDDAY

Chicago O'Hare Intl

Thu 11/5

7:55 pm-10:23 pm

Nonstop1h 28m

Dayton

Sat 11/7

7:45 pm-11:15 pm

1 stop4h 30m

$318

ChicagoDayton

ORD - DAY

ORDDAY

Chicago O'Hare Intl

Thu 10/22

8:40 am-10:57 am

Nonstop1h 17m

Dayton

Sat 10/24

7:33 pm-11:31 pm

1 stop4h 58m

$318

ChicagoDayton

ORD - DAY

ORDDAY

Chicago O'Hare Intl

Fri 8/14

8:40 am-11:00 am

Nonstop1h 20m

Dayton

Sat 9/26

2:20 pm-2:50 pm

Nonstop1h 30m

$319

ChicagoDayton

ORD - DAY

ORDDAY

Chicago O'Hare Intl

Fri 7/24

9:35 am-11:59 am

Nonstop1h 24m

Dayton

Mon 7/27

4:07 pm-4:42 pm

Nonstop1h 35m

$338

ChicagoDayton

ORD - DAY

ORDDAY

Chicago O'Hare Intl

Thu 7/9

8:40 am-2:18 pm

1 stop4h 38m

Dayton

Sun 7/12

5:40 am-5:55 am

Nonstop1h 15m

$339

St. LouisDayton

STL - DAY

STLDAY

Lambert-St Louis

Sun 7/5

6:00 am-11:04 am

1 stop4h 04m

Dayton

Sat 7/11

6:15 pm-11:29 pm

1 stop6h 14m

$349

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/4

Showing 1-10 of 60 resultsSorted by cheapest first
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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 $139). Flying from Illinois to Dayton in May is currently the most expensive (average of $239). 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 June 9, 2026.

One of the essential ways to save on airfare from Illinois to Dayton is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the evening could potentially save you up to 20% on airfare.

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 June 9, 2026.

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 (11 on average).

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

What is the cheapest day to fly from Illinois to Dayton?

Use this chart to determine the cheapest time to fly round-trip from Illinois to Dayton. Price data was last updated on June 8, 2026.

Travelers seeking maximum savings on their Illinois to Dayton flight should consider departing on Thursday evenings when fares are most often at their lowest. Sunday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

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 24m. United Airlines provides one of the quickest options available for as low as $249. 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 most popular routes from Illinois to Dayton?

    The most popular flight routes from Illinois to Dayton are Chicago O'Hare Intl - Dayton, Chicago Midway - Dayton and Lambert-St Louis - 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 (92%), Republic Airways (75%), Japan Airlines (73%).

  • What are the cheapest flights from Illinois to Dayton?

    The cheapest flight price from Illinois to Dayton is $203. On average you can expect to pay $370. The most popular route, (Chicago O'Hare Intl - Dayton), can usually be booked for $239.

  • 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 $139). Flying from Illinois to Dayton in May is currently the most expensive (average of $239). 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
Huber Heights
Springfield
Troy
Greenville
Xenia
Miamisburg

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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 June 9, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$179Average$299FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$209Average$345FlexibilityNo cancel feeOn-time69%

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