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$134+ 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 4/23. Fares are subject to change and may not be available on all flights or dates of travel.
DAY — ORD
feb. 28 — mar. 71
sáb. 2/28
sáb. 3/7
1 adult, Economy
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Cheap 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 enero 29, 2026.

This United Airlines deal was found by Cheapflights users on 1/27. 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.
jue. 2/1911:00 am
DAY
-
ORD
Nonstop1h 36m
United Airlines
dom. 2/227:46 pm
ORD
-
DAY
Nonstop1h 28m
United Airlines
Deal found 1/27$179
This United Airlines deal was found by Cheapflights users on 1/27. 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.
jue. 2/127:00 am
DAY
-
ORD
Nonstop1h 36m
United Airlines
lun. 2/167:46 pm
ORD
-
DAY
Nonstop1h 28m
United Airlines
Deal found 1/27$209
This United Airlines deal was found by Cheapflights users on 1/27. 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.
vie. 2/2011:00 am
DAY
-
ORD
Nonstop1h 36m
United Airlines
dom. 2/227:46 pm
ORD
-
DAY
Nonstop1h 28m
United Airlines
Deal found 1/27$214
This United Airlines deal was found by Cheapflights users on 1/28. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 7/1011:39 am
DAY
-
ORD
Nonstop1h 21m
United Airlines
dom. 7/128:45 am
ORD
-
DAY
Nonstop1h 18m
United Airlines
Deal found 1/28$218
This American Airlines deal was found by Cheapflights users on 1/27. 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.
vie. 2/275:47 am
DAY
-
ORD
1 stop7h 18m
American Airlines
jue. 3/52:44 pm
ORD
-
DAY
Nonstop1h 21m
American Airlines
Deal found 1/27$219
This American Airlines deal was found by Cheapflights users on 1/27. 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.
vie. 3/1312:41 pm
DAY
-
ORD
Nonstop1h 26m
American Airlines
sáb. 3/149:55 am
ORD
-
DAY
Nonstop1h 16m
American Airlines
Deal found 1/27$223
This American Airlines deal was found by Cheapflights users on 1/28. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 2/2012:41 pm
DAY
-
ORD
Nonstop1h 26m
American Airlines
dom. 2/229:55 am
ORD
-
DAY
Nonstop1h 16m
American Airlines
Deal found 1/28$234
This American Airlines deal was found by Cheapflights users on 1/28. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 2/194:17 pm
DAY
-
ORD
Nonstop1h 27m
American Airlines
dom. 2/222:43 pm
ORD
-
DAY
Nonstop1h 21m
American Airlines
Deal found 1/28$237
This United Airlines deal was found by Cheapflights users on 1/27. 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.
mar. 3/179:14 am
DAY
-
ORD
Nonstop1h 36m
United Airlines
jue. 3/269:25 pm
ORD
-
DAY
Nonstop1h 18m
United Airlines
Deal found 1/27$239
This United Airlines deal was found by Cheapflights users on 1/28. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 4/177:15 am
DAY
-
ORD
Nonstop1h 32m
United Airlines
dom. 4/197:50 pm
ORD
-
DAY
Nonstop1h 24m
United Airlines
Deal found 1/28$242
This United Airlines deal was found by Cheapflights users on 1/28. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 2/139:00 am
DAY
-
ORD
Nonstop1h 36m
United Airlines
mar. 2/175:51 pm
ORD
-
DAY
Nonstop1h 18m
United Airlines
Deal found 1/28$244
This American Airlines deal was found by Cheapflights users on 1/28. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 2/56:00 am
DAY
-
ORD
1 stop7h 35m
American Airlines
lun. 2/97:25 pm
ORD
-
DAY
Nonstop1h 19m
American Airlines
Deal found 1/28$249

Find flight deals from Dayton to Illinois

Keep the following information in mind while searching for Dayton to Illinois flight deals. Data was last updated enero 29, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$179
(United Airlines)

One-way from

$134
(United Airlines)

Popular in

June

Cheapest in

December

Average price

$254

Good round-trip deal

$356 or less

Good one-way deal

$278 or less
Provider with most accurate pricing for Dayton-Chicago (CHI) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Dayton-Chicago (CHI) flights.
Search Deals
From Dayton to Illinois
Search Deals
One-way flight from Dayton to Illinois
Search Deals
Highest demand for flights based on searches. 15% potential increase in price ($51 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($8 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
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

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 enero 29, 2026.
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

sáb. 5/9

8:45 am-9:20 am

Nonstop1h 35m

Chicago O'Hare Intl

lun. 5/11

7:50 pm-10:14 pm

Nonstop1h 24m

$179

DaytonChicago

DAY - ORD

DAYORD

Dayton

lun. 3/2

5:49 pm-6:30 pm

Nonstop1h 41m

Chicago O'Hare Intl

lun. 3/9

5:52 pm-8:21 pm

Nonstop1h 29m

$179

DaytonChicago

DAY - ORD

DAYORD

Dayton

mié. 7/8

9:00 am-9:24 am

Nonstop1h 24m

Chicago O'Hare Intl

dom. 7/12

8:45 am-11:03 am

Nonstop1h 18m

$179

DaytonChicago

DAY - ORD

DAYORD

Dayton

sáb. 2/21

9:00 am-9:36 am

Nonstop1h 36m

Chicago O'Hare Intl

lun. 2/23

9:25 pm-11:43 pm

Nonstop1h 18m

$179

DaytonChicago

DAY - ORD

DAYORD

Dayton

mié. 2/11

9:05 am-9:50 am

Nonstop1h 45m

Chicago O'Hare Intl

sáb. 2/14

9:25 pm-11:43 pm

Nonstop1h 18m

$209

DaytonChicago

DAY - ORD

DAYORD

Dayton

jue. 2/12

7:00 am-7:36 am

Nonstop1h 36m

Chicago O'Hare Intl

sáb. 2/14

9:25 pm-11:43 pm

Nonstop1h 18m

$209

DaytonChicago

DAY - ORD

DAYORD

Dayton

vie. 6/12

6:00 am-6:24 am

Nonstop1h 24m

Chicago O'Hare Intl

dom. 6/14

11:18 am-1:44 pm

Nonstop1h 26m

$214

DaytonChicago

DAY - ORD

DAYORD

Dayton

vie. 7/10

11:39 am-12:00 pm

Nonstop1h 21m

Chicago O'Hare Intl

dom. 7/12

8:45 am-11:03 am

Nonstop1h 18m

$218

DaytonChicago

DAY - ORD

DAYORD

Dayton

vie. 2/20

12:41 pm-1:07 pm

Nonstop1h 26m

Chicago O'Hare Intl

dom. 2/22

9:55 am-12:11 pm

Nonstop1h 16m

$234

DaytonChicago

DAY - ORD

DAYORD

Dayton

mié. 4/29

9:00 am-9:32 am

Nonstop1h 32m

Chicago O'Hare Intl

lun. 5/4

5:45 pm-8:07 pm

Nonstop1h 22m

$239

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/27

Showing 1-10 of 60 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 $106). Flying from Dayton to Illinois in June is currently the most expensive (average of $179). 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 enero 29, 2026.

It’s typically best to fly out from Dayton to Illinois in the morning. Doing so could potentially save you 35% on the flight price compared to flying in the evening, which is usually more expensive.

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

Use this chart to determine the cheapest time to fly round-trip from Dayton to Illinois. Price data was last updated on January 24, 2026.

Travelers seeking maximum savings on their Dayton to Illinois flight should consider departing on Friday 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.

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 enero 29, 2026.

The most flights from DAY to USIL are scheduled on a Thursday (26 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (16 on average).

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

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 enero 29, 2026.
Read reviews from past customers who have flown United Airlines and American Airlines from Dayton to Illinois. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,215 reviews

Entertainment

7.1

Crew

8.1

Comfort

7.3

Overall

7.4

Boarding

7.7

Food

6.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Oct 2025

YUL - ORD

Crew and customer service are 5 stars. I had a lot of luggage for a very long trip and they were nothing but helpful and found solutions to every problem. It was my first time flying with United, and they really are the friendly skies. Leg room however, on 2/3 flights was terrible. Same for entertainment: There was only a seat-mounted screen on 1/3 flights. It would have been nice to have on the longest leg of the journey.
United Airlines
7.4
Good
9,215 reviews
United Airlines
7.4
Good
9,215 reviews

Entertainment

7.1

Crew

8.1

Comfort

7.3

Overall

7.4

Boarding

7.7

Food

6.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Oct 2025

YUL - ORD

Crew and customer service are 5 stars. I had a lot of luggage for a very long trip and they were nothing but helpful and found solutions to every problem. It was my first time flying with United, and they really are the friendly skies. Leg room however, on 2/3 flights was terrible. Same for entertainment: There was only a seat-mounted screen on 1/3 flights. It would have been nice to have on the longest leg of the journey.
American Airlines
7.2
Good
11,205 reviews
United Airlines
7.4
Good
9,215 reviews

Entertainment

7.1

Crew

8.1

Comfort

7.3

Overall

7.4

Boarding

7.7

Food

6.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Oct 2025

YUL - ORD

Crew and customer service are 5 stars. I had a lot of luggage for a very long trip and they were nothing but helpful and found solutions to every problem. It was my first time flying with United, and they really are the friendly skies. Leg room however, on 2/3 flights was terrible. Same for entertainment: There was only a seat-mounted screen on 1/3 flights. It would have been nice to have on the longest leg of the journey.

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.

  • How long is the flight from Dayton to Illinois?

    For as low as $179, United Airlines can have you in Illinois from Dayton in 1h 35m. There are 240 mi between Dayton and Illinois. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • 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: Republic Airways (93%), GoJet (77%), ANA (73%).

  • What are the cheapest flights from Dayton to Illinois?

    Looking at all options, your cheapest flight can be booked for $198. While the most popular route (Dayton - Chicago O'Hare Intl) can be booked for $179 on average, our data indicates $1,188 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 $106). Flying from Dayton to Illinois in June is currently the most expensive (average of $179). 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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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 enero 29, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$179Average$288FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$179Average$292FlexibilityNo cancel feeOn-time71%

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