HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
O'Hare Intl

$98+ Cheap flights from Decatur, IL (DEC) to O'Hare Intl (ORD)

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 11/27. Fares are subject to change and may not be available on all flights or dates of travel.
DEC — ORD
Dec 13 — Dec 201
Sat 12/13
Sat 12/20
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Decatur to O'Hare Intl with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Find flight deals from Decatur to O'Hare Intl

Cheapest flights from Decatur to O'Hare Intl
Explore the most affordable flight options available from Decatur to O'Hare Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 13, 2025.

This United Airlines deal was found by Cheapflights users on 11/12. 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 11/279:44 amDEC - ORD
Nonstop1h 11mUnited Airlines
Mon 12/14:50 pmORD - DEC
Nonstop1h 02mUnited Airlines
Deal found 11/12$149
This United Airlines deal was found by Cheapflights users on 11/11. 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 11/257:08 pmDEC - ORD
Nonstop1h 11mUnited Airlines
Sat 11/294:50 pmORD - DEC
Nonstop1h 02mUnited Airlines
Deal found 11/11$159
This United Airlines deal was found by Cheapflights users on 11/12. 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 12/137:08 pmDEC - ORD
Nonstop1h 11mUnited Airlines
Sun 12/147:45 amORD - DEC
Nonstop1h 03mUnited Airlines
Deal found 11/12$160
This United Airlines deal was found by Cheapflights users on 11/11. 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 11/219:44 amDEC - ORD
Nonstop1h 11mUnited Airlines
Thu 12/117:45 amORD - DEC
Nonstop1h 03mUnited Airlines
Deal found 11/11$174
This United Airlines deal was found by Cheapflights users on 11/11. 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 12/167:08 pmDEC - ORD
Nonstop1h 11mUnited Airlines
Sat 12/207:45 amORD - DEC
Nonstop1h 20mUnited Airlines
Deal found 11/11$191
This United Airlines deal was found by Cheapflights users on 11/11. 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 11/157:08 pmDEC - ORD
Nonstop1h 11mUnited Airlines
Sun 11/167:45 amORD - DEC
Nonstop1h 03mUnited Airlines
Deal found 11/11$199
This United Airlines deal was found by Cheapflights users on 11/11. 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 11/209:44 amDEC - ORD
Nonstop1h 11mUnited Airlines
Fri 11/214:50 pmORD - DEC
Nonstop1h 02mUnited Airlines
Deal found 11/11$291
This United Airlines deal was found by Cheapflights users on 11/13. 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 11/137:08 pmDEC - ORD
Nonstop1h 11mUnited Airlines
Sat 11/154:50 pmORD - DEC
Nonstop1h 02mUnited Airlines
Deal found 11/13$391

Cheap flight deals from Decatur to O'Hare Intl

Discover tips and strategies to find the most affordable flight options for your journey from Decatur (DEC) to O'Hare Intl (ORD). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated November 13, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$149
(United Airlines)

One-way from

$98
(United Airlines)

Popular in

February

Cheapest in

June

Average price

$165

Good round-trip deal

$364 or less

Good one-way deal

$143 or less
Provider with most accurate pricing for Decatur Arpt-Chicago O'Hare Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Decatur Arpt-Chicago O'Hare Intl flights.
Search Deals
From Decatur Arpt to Chicago O'Hare Intl
Search Deals
One-way flight from Decatur Arpt to Chicago O'Hare Intl
Search Deals
Highest demand for flights based on searches. 56% potential increase in price ($276 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 16% potential price decrease ($31 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
Search Deals
Price to beat on a round-trip flight from Decatur Arpt to Chicago O'Hare Intl.
Search Deals
Price to beat on a one-way flight from Decatur Arpt to Chicago O'Hare Intl.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Decatur to O'Hare Intl 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 November 13, 2025.
Use the filters below to find and compare flights from Decatur to Chicago O'Hare Intl Airport that are best for you.

Fly from

Decatur

Fly to

O'Hare Intl

Route

Depart

Return

Price

DecaturChicago

DEC - ORD

DECORD

Decatur Arpt

Thu 11/27

9:44 am-10:55 am

Nonstop1h 11m

Chicago O'Hare Intl

Mon 12/1

4:50 pm-5:52 pm

Nonstop1h 02m

$149

DecaturChicago

DEC - ORD

DECORD

Decatur Arpt

Thu 11/27

9:44 am-10:55 am

Nonstop1h 11m

Chicago O'Hare Intl

Fri 11/28

7:45 am-8:48 am

Nonstop1h 03m

$159

DecaturChicago

DEC - ORD

DECORD

Decatur Arpt

Sat 12/27

7:09 pm-8:25 pm

Nonstop1h 16m

Chicago O'Hare Intl

Sat 1/3

7:45 am-9:05 am

Nonstop1h 20m

$159

DecaturChicago

DEC - ORD

DECORD

Decatur Arpt

Thu 2/26

7:05 pm-8:15 pm

Nonstop1h 10m

Chicago O'Hare Intl

Mon 3/2

7:45 am-8:52 am

Nonstop1h 07m

$159

DecaturChicago

DEC - ORD

DECORD

Decatur Arpt

Wed 2/11

7:09 pm-8:25 pm

Nonstop1h 16m

Chicago O'Hare Intl

Tue 2/17

4:52 pm-5:56 pm

Nonstop1h 04m

$159

DecaturChicago

DEC - ORD

DECORD

Decatur Arpt

Thu 12/25

9:44 am-11:00 am

Nonstop1h 16m

Chicago O'Hare Intl

Sun 12/28

7:45 am-9:05 am

Nonstop1h 20m

$159

DecaturChicago

DEC - ORD

DECORD

Decatur Arpt

Wed 11/26

7:08 pm-8:19 pm

Nonstop1h 11m

Chicago O'Hare Intl

Sun 11/30

4:50 pm-5:52 pm

Nonstop1h 02m

$159

DecaturChicago

DEC - ORD

DECORD

Decatur Arpt

Tue 2/3

7:09 pm-8:25 pm

Nonstop1h 16m

Chicago O'Hare Intl

Tue 2/10

4:52 pm-6:01 pm

Nonstop1h 09m

$159

DecaturChicago

DEC - ORD

DECORD

Decatur Arpt

Tue 11/25

7:08 pm-8:19 pm

Nonstop1h 11m

Chicago O'Hare Intl

Thu 11/27

7:45 am-8:48 am

Nonstop1h 03m

$159

DecaturChicago

DEC - ORD

DECORD

Decatur Arpt

Sat 11/29

7:08 pm-8:19 pm

Nonstop1h 11m

$98

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/12

Showing 1-10 of 20 results
1
2

Compare providers for flights from Decatur to O'Hare Intl

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Decatur to O'Hare Intl in November.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Decatur, Illinois-Chicago O'Hare Intl Airport flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Decatur, Illinois-Chicago O'Hare Intl Airport flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Decatur, Illinois-Chicago O'Hare Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Decatur, Illinois-Chicago O'Hare Intl Airport flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Decatur, Illinois-Chicago O'Hare Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Decatur to O'Hare Intl

Have a flexible travel schedule? Discover the best time to fly to O'Hare Intl from Decatur 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 Decatur to Chicago O'Hare Intl Airport

What is the cheapest month to book a flight from Decatur, Illinois to Chicago O'Hare Intl Airport?

Currently, May is the cheapest month in which you can book a flight from Decatur, Illinois to Chicago O'Hare Intl Airport (average of $148). Flying from Decatur, Illinois to Chicago O'Hare Intl Airport in March is currently the most expensive (average of $432). 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 DEC to ORD?

Find hourly flight availability from Decatur to O'Hare Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 13, 2025.

When flying from Decatur, Illinois to Chicago O'Hare Intl Airport, the time of day you fly usually plays a role in the price. Save by searching for a flight at noon, which can drop the price by up to 51% versus a flight in the evening.

Reviews of airlines servicing O'Hare Intl

Get insights into the airlines that provide service to O'Hare Intl. 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 O'Hare Intl. Reviews last updated November 13, 2025.
Peruse reviews from past customers who have flown with United Airlines from Decatur to Chicago O'Hare Intl Airport to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,015 reviews

Boarding

7.7

Entertainment

7.1

Overall

7.4

Comfort

7.3

Food

6.6

Crew

8.1

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
9,015 reviews
United Airlines
7.4
Good
9,015 reviews

Boarding

7.7

Entertainment

7.1

Overall

7.4

Comfort

7.3

Food

6.6

Crew

8.1

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 Decatur to O'Hare Intl. 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 Decatur to Chicago O'Hare Intl?

    Most people fly from Decatur Arpt (DEC) if they book a flight from Decatur to Chicago O'Hare Intl. On average, Decatur Arpt has 1 outbound flight to Chicago O'Hare Intl per day from 1 airline. Decatur Arpt is conveniently located just 4.7 mi from Decatur’s city center.

  • How long is the flight from Decatur, Illinois to Chicago O'Hare Intl Airport?

    Airlines like United Airlines fly from Decatur, Illinois to Chicago O'Hare Intl Airport in about 1h 11m. The time it takes to get you to your destination is usually consistent. Airlines will cover a distance of 156 mi. Generally, flights for this route are nonstop.

  • What is the cheapest airline to fly from Decatur, Illinois to Chicago O'Hare Intl Airport round-trip?

    Cheapflights users have booked flights from Decatur, Illinois to Chicago O'Hare Intl Airport round-trip from $148. United Airlines is 30% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the cheapest flights from Decatur, Illinois to Chicago O'Hare Intl Airport?

    On average you can expect to pay $382 for a flight from Decatur, Illinois to Chicago O'Hare Intl Airport. The cheapest flight overall is $97 while the most popular route, (Decatur Arpt - Chicago O'Hare Intl) is currently priced at $149.

  • Can I find deals for flights from Decatur to O'Hare Intl that include hotel bookings?

    Yes. In addition to deals on Decatur to O'Hare Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Decatur to O'Hare Intl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Decatur to O'Hare Intl.

  • Can I find deals for business class flights from Decatur to O'Hare Intl?

    Yes. Cheapflights offers flight deals from Decatur to O'Hare Intl 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 Decatur, Illinois to Chicago O'Hare Intl Airport?

    Currently, May is the cheapest month in which you can book a flight from Decatur, Illinois to Chicago O'Hare Intl Airport (average of $148). Flying from Decatur, Illinois to Chicago O'Hare Intl Airport in March is currently the most expensive (average of $432). 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 Chicago O'Hare Intl Airport?

Book flights to Chicago O'Hare Intl Airport if you plan to visit one of these locations
Schaumburg
Rosemont
Skokie
Des Plaines
Gurnee
Hoffman Estates
Beloit
Delavan
Elgin
Oak Brook
Elk Grove Village
Downers Grove
Rockford
Naperville
Orland Park
Bridgeview
Warrenville
Waukegan
Aurora
Racine

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top airline flying from Decatur to O'Hare Intl

Discover the top airline that operate flights from Decatur to O'Hare Intl. 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 November 13, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$148Average$158FlexibilityNo cancel feeOn-time69%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
Site
©2025 Cheapflights