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$27+ Cheap flights from Dallas/Fort Worth (DFW) 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 9/18. Fares are subject to change and may not be available on all flights or dates of travel.
DFW — ORD
Aug 19 — Aug 261
Tue 8/19
Tue 8/26
1 adult, Economy
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Cheap flight deals from Dallas/Fort Worth to Illinois

Keep the following information in mind while searching for Dallas/Fort Worth to Illinois flight deals. Data was last updated August 14, 2025.

Round-trip from

$113
(Cheapflightsfares)

One-way from

$27
(Cheapflightsfares)

Popular in

December

Cheapest in

February

Average price

$177

Good round-trip deal

$113 or less

Good one-way deal

$114 or less
From Dallas/Fort Worth to Illinois
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One-way flight from Dallas/Fort Worth to Illinois
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Highest demand for flights based on searches. 6% potential increase in price ($12 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($4 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Price to beat on a round-trip flight from Dallas/Fort Worth to Illinois.
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Price to beat on a one-way flight from Dallas/Fort Worth to Illinois.
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Find flight deals from Dallas/Fort Worth to Illinois

Cheapest flights from Dallas/Fort Worth to Illinois
Explore the most affordable flight options available from Dallas/Fort Worth to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 14, 2025.

This Booking.com deal was found by Cheapflights users on 8/13. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1910:25 pmDFW - STL
1 stop10h 41mFrontier
Sun 9/2110:39 amSTL - DFW
Nonstop1h 50mFrontier
Deal found 8/13$111
This Frontier deal was found by Cheapflights users on 8/14. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1110:25 pmDFW - STL
1 stop10h 41mFrontier
Sun 9/1410:39 amSTL - DFW
Nonstop1h 50mFrontier
Deal found 8/14$115
This Frontier deal was found by Cheapflights users on 8/14. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/269:27 pmDFW - ORD
Nonstop2h 31mFrontier
Tue 10/75:28 pmORD - DFW
Nonstop2h 48mFrontier
Deal found 8/14$115
This Cheapflightsfares deal was found by Cheapflights users on 8/14. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/59:27 pmDFW - ORD
Nonstop2h 31mFrontier
Mon 9/87:40 amORD - DFW
1 stop6h 12mFrontier
Deal found 8/14$116
This Cheapflightsfares deal was found by Cheapflights users on 8/14. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/115:45 pmDFW - MDW
1 stop5h 35mFrontier
Mon 9/157:15 amMDW - DFW
Nonstop2h 31mFrontier
Deal found 8/14$116
This Priceline deal was found by Cheapflights users on 8/12. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/98:00 amDFW - ORD
Nonstop2h 40mMultiple Airlines
Tue 9/167:09 pmORD - DFW
1 stop10h 41mMultiple Airlines
Deal found 8/12$117
This Kiwi.com deal was found by Cheapflights users on 8/12. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/258:00 amDFW - STL
Nonstop1h 54mFrontier
Sun 9/2810:39 amSTL - DFW
Nonstop1h 50mFrontier
Deal found 8/12$118
This Frontier deal was found by Cheapflights users on 8/14. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/18:00 amDFW - ORD
Nonstop2h 40mFrontier
Wed 10/811:00 amORD - DFW
1 stop7h 07mFrontier
Deal found 8/14$118
This Frontier deal was found by Cheapflights users on 8/13. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/295:40 amDFW - MDW
1 stop10h 20mFrontier
Mon 10/69:47 pmMDW - DFW
Nonstop2h 34mFrontier
Deal found 8/13$118
This Frontier deal was found by Cheapflights users on 8/13. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/97:30 amDFW - STL
Nonstop1h 52mFrontier
Sun 10/1210:17 amSTL - DFW
Nonstop1h 57mFrontier
Deal found 8/13$119
This Frontier deal was found by Cheapflights users on 8/12. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/29:27 pmDFW - ORD
Nonstop2h 31mFrontier
Fri 10/105:25 amORD - DFW
Nonstop2h 33mFrontier
Deal found 8/12$119
This Frontier deal was found by Cheapflights users on 8/14. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/26:55 amDFW - MDW
Nonstop2h 23mFrontier
Sun 10/56:20 amMDW - DFW
1 stop13h 34mFrontier
Deal found 8/14$119

Cheapflights Fare Finder

 
Customize your flight search to find flights from Dallas/Fort Worth 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 August 14, 2025.
Use the filters below to find and compare flights from Dallas/Fort Worth Airport to Illinois that are best for you.

Fly from

Dallas/Fort Worth

Fly to

Illinois

Route

Depart

Return

Price

DallasSt. Louis

DFW - STL

DFWSTL

Dallas/Fort Worth

Fri 9/26

10:25 pm-9:06 am

1 stop10h 41m

Lambert-St Louis

Sun 9/28

10:39 am-12:29 pm

Nonstop1h 50m

$115

DallasSt. Louis

DFW - STL

DFWSTL

Dallas/Fort Worth

Thu 9/11

10:25 pm-9:06 am

1 stop10h 41m

Lambert-St Louis

Sun 9/14

10:39 am-12:29 pm

Nonstop1h 50m

$115

DallasSt. Louis

DFW - STL

DFWSTL

Dallas/Fort Worth

Sat 11/1

10:25 pm-10:07 am

1 stop11h 42m

Lambert-St Louis

Sun 11/2

7:02 pm-8:59 pm

Nonstop1h 57m

$115

DallasSt. Louis

DFW - STL

DFWSTL

Dallas/Fort Worth

Thu 9/11

6:00 am-3:04 pm

1 stop9h 04m

Lambert-St Louis

Thu 9/18

10:49 am-12:39 pm

Nonstop1h 50m

$115

DallasSt. Louis

DFW - STL

DFWSTL

Dallas/Fort Worth

Fri 10/10

9:36 pm-9:07 am

1 stop11h 31m

Lambert-St Louis

Sun 10/12

10:17 am-12:14 pm

Nonstop1h 57m

$115

DallasSt. Louis

DFW - STL

DFWSTL

Dallas/Fort Worth

Fri 9/5

10:25 pm-9:06 am

1 stop10h 41m

Lambert-St Louis

Sun 9/7

10:39 am-12:29 pm

Nonstop1h 50m

$115

DallasChicago

DFW - ORD

DFWORD

Dallas/Fort Worth

Tue 10/14

2:22 pm-11:53 pm

1 stop9h 31m

Chicago O'Hare Intl

Sun 10/19

5:25 am-7:58 am

Nonstop2h 33m

$115

DallasChicago

DFW - ORD

DFWORD

Dallas/Fort Worth

Thu 10/30

10:24 pm-12:59 am

Nonstop2h 35m

Chicago O'Hare Intl

Mon 11/3

6:20 pm-9:09 pm

Nonstop2h 49m

$116

DallasChicago

DFW - ORD

DFWORD

Dallas/Fort Worth

Sat 11/1

10:24 pm-12:59 am

Nonstop2h 35m

Chicago O'Hare Intl

Mon 11/3

11:12 am-1:47 pm

Nonstop2h 35m

$116

DallasChicago

DFW - ORD

DFWORD

Dallas/Fort Worth

Thu 10/30

10:24 pm-12:59 am

Nonstop2h 35m

Chicago O'Hare Intl

Sat 11/1

6:25 pm-9:14 pm

Nonstop2h 49m

$116

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/13

Showing 1-10 of 60 results
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Best time to book a flight from Dallas/Fort Worth to Illinois

Have a flexible travel schedule? Discover the best time to fly to Illinois from Dallas/Fort Worth 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 Dallas/Fort Worth Airport to Illinois

What is the cheapest month to book a flight from Dallas/Fort Worth Airport to Illinois?

Currently, August is the cheapest month in which you can book a flight from Dallas/Fort Worth Airport to Illinois (average of $245). Flying from Dallas/Fort Worth Airport 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 DFW to IL?

Find hourly flight availability from Dallas/Fort Worth 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 August 14, 2025.

When flying from Dallas/Fort Worth Airport 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 Dallas/Fort Worth Airport to Illinois

Explore weekly flight availability from Dallas/Fort Worth 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 August 14, 2025.

The most flights from DFW to USIL are scheduled on a Thursday (76 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (43 on average).

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 August 14, 2025.
See what other customers who have flown with Southwest, United Airlines, and American Airlines from Dallas/Fort Worth Airport to Illinois have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,244 reviews

Overall

8.0

Entertainment

7.5

Crew

8.6

Comfort

8.0

Boarding

8.1

Food

7.0

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Southwest
8.0
Very good
4,244 reviews
Southwest
8.0
Very good
4,244 reviews

Overall

8.0

Entertainment

7.5

Crew

8.6

Comfort

8.0

Boarding

8.1

Food

7.0

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
United Airlines
7.4
Good
8,916 reviews
Southwest
8.0
Very good
4,244 reviews

Overall

8.0

Entertainment

7.5

Crew

8.6

Comfort

8.0

Boarding

8.1

Food

7.0

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,244 reviews

Overall

8.0

Entertainment

7.5

Crew

8.6

Comfort

8.0

Boarding

8.1

Food

7.0

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Spirit Airlines
6.3
Okay
8,045 reviews
Southwest
8.0
Very good
4,244 reviews

Overall

8.0

Entertainment

7.5

Crew

8.6

Comfort

8.0

Boarding

8.1

Food

7.0

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Frontier
5.8
Fair
3,219 reviews
Southwest
8.0
Very good
4,244 reviews

Overall

8.0

Entertainment

7.5

Crew

8.6

Comfort

8.0

Boarding

8.1

Food

7.0

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

Related info for your journey

Find useful and relevant information for your journey from Dallas/Fort Worth to Illinois. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the most popular routes from Dallas/Fort Worth Airport to Illinois?

    The most popular route from Dallas/Fort Worth Airport to Illinois is Dallas/Fort Worth - Chicago O'Hare Intl. You may also consider Dallas/Fort Worth - Chicago Midway or Dallas/Fort Worth - Lambert-St Louis.

  • What are the most reliable airlines from Dallas/Fort Worth Airport to Illinois?

    The top 3 most reliable airlines when flying from Dallas/Fort Worth Airport to Illinois are Turkish Airlines (90%), ANA (82%) and SWISS (80%).

  • What are the cheapest flights from Dallas/Fort Worth Airport to Illinois?

    On average you can expect to pay $1,004 for a flight from Dallas/Fort Worth Airport to Illinois. The cheapest flight overall is $67 while the most popular route, (Dallas/Fort Worth - Chicago O'Hare Intl) is currently priced at $93.

  • Can I find deals for flights from Dallas/Fort Worth to Illinois that include hotel bookings?

    Yes. In addition to deals on Dallas/Fort Worth to Illinois flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Dallas/Fort Worth to Illinois?

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

  • Can I find deals for business class flights from Dallas/Fort Worth to Illinois?

    Yes. Cheapflights offers flight deals from Dallas/Fort Worth 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 Dallas/Fort Worth Airport to Illinois?

    Currently, August is the cheapest month in which you can book a flight from Dallas/Fort Worth Airport to Illinois (average of $245). Flying from Dallas/Fort Worth Airport 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.

See more FAQs

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Alternative routes for Dallas/Fort Worth to Illinois

See prices for flight routes from nearby airports that may be better suited for you.
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Top 6 airlines flying from Dallas/Fort Worth to Illinois

Discover the top 6 airlines that operate flights from Dallas/Fort Worth 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 August 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$55Average$164FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$58Average$133FlexibilityNo cancel feeOn-time65%
ContourCheapest$134Average$247FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$147Average$274FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$157Average$454FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$159Average$313FlexibilityNo cancel feeOn-time69%

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