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$29+ Cheap flights from Dallas 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 10/9. Fares are subject to change and may not be available on all flights or dates of travel.
DFW — ORD
Aug 23 — Aug 301
Sat 8/23
Sat 8/30
1 adult, Economy
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Cheap flight deals from Dallas to Illinois

Keep the following information in mind while searching for Dallas to Illinois flight deals. Data was last updated August 18, 2025.

Round-trip from

$102
(Frontier)

One-way from

$29
(Booking.com)

Popular in

December

Cheapest in

February

Average price

$177
From Dallas to Illinois
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One-way flight from Dallas 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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Find flight deals from Dallas to Illinois

Cheapest flights from Dallas to Illinois
Explore the most affordable flight options available from Dallas to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 18, 2025.

This Frontier deal was found by Cheapflights users on 8/17. 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 10/167:30 amDFW - STL
Nonstop1h 52mFrontier
Sun 10/1910:17 amSTL - DFW
Nonstop1h 57mFrontier
Deal found 8/17$102
This Mytrip deal was found by Cheapflights users on 8/17. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1210:25 pmDFW - STL
1 stop10h 41mFrontier
Sun 9/1410:39 amSTL - DFW
Nonstop1h 50mFrontier
Deal found 8/17$110
This Cheapflightsfares deal was found by Cheapflights users on 8/16. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/287:25 amDFW - STL
Nonstop1h 53mFrontier
Sun 8/3110:17 amSTL - DFW
Nonstop1h 56mFrontier
Deal found 8/16$111
This Cheapflightsfares deal was found by Cheapflights users on 8/16. 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 Cheapflightsfares 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 9/284:00 pmSTL - DFW
1 stop6h 08mFrontier
Deal found 8/16$113
This Priceline deal was found by Cheapflights users on 8/17. 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.
Sun 8/317:25 amDFW - STL
Nonstop1h 53mFrontier
Sun 9/74:00 pmSTL - DFW
1 stop6h 08mFrontier
Deal found 8/17$114
This CheapOair deal was found by Cheapflights users on 8/16. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/1410:25 pmDFW - ORD
1 stop11h 12mFrontier
Wed 9/176:44 pmORD - DFW
Nonstop2h 55mFrontier
Deal found 8/16$114
This CheapOair deal was found by Cheapflights users on 8/17. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/88:00 amDFW - MDW
1 stop5h 38mFrontier
Tue 10/145:20 pmMDW - DFW
Nonstop2h 41mFrontier
Deal found 8/17$114
This Frontier deal was found by Cheapflights users on 8/16. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/109:36 pmDFW - STL
1 stop11h 31mFrontier
Sun 10/1210:17 amSTL - DFW
Nonstop1h 57mFrontier
Deal found 8/16$115
This Gotogate deal was found by Cheapflights users on 8/17. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/49:27 pmDFW - ORD
Nonstop2h 31mFrontier
Sun 10/510:42 amORD - DFW
1 stop24h 44mFrontier
Deal found 8/17$115
This Cheapflightsfares deal was found by Cheapflights users on 8/16. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/45:45 pmDFW - MDW
1 stop5h 35mFrontier
Mon 9/87:15 amMDW - DFW
Nonstop2h 31mFrontier
Deal found 8/16$115
This Cheapflightsfares deal was found by Cheapflights users on 8/17. 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 8/17$116
This Cheapflightsfares deal was found by Cheapflights users on 8/17. 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 8/17$116

Cheapflights Fare Finder

 
Customize your flight search to find flights from Dallas 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 18, 2025.
Use the filters below to find and compare flights from Dallas to Illinois that are best for you.

Fly from

Dallas

Fly to

Illinois

Route

Depart

Return

Price

DallasSt. Louis

DFW - STL

DFWSTL

Dallas/Fort Worth

Thu 10/16

7:30 am-9:22 am

Nonstop1h 52m

Lambert-St Louis

Sun 10/19

10:17 am-12:14 pm

Nonstop1h 57m

$102

DallasSt. Louis

DFW - STL

DFWSTL

Dallas/Fort Worth

Fri 9/12

10:25 pm-9:06 am

1 stop10h 41m

Lambert-St Louis

Sun 9/14

10:39 am-12:29 pm

Nonstop1h 50m

$110

DallasSt. Louis

DFW - STL

DFWSTL

Dallas/Fort Worth

Thu 8/28

7:25 am-9:18 am

Nonstop1h 53m

Lambert-St Louis

Sun 8/31

10:17 am-12:13 pm

Nonstop1h 56m

$111

DallasSt. Louis

DFW - STL

DFWSTL

Dallas/Fort Worth

Thu 9/25

8:00 am-9:54 am

Nonstop1h 54m

Lambert-St Louis

Sun 9/28

4:00 pm-10:08 pm

1 stop6h 08m

$113

DallasSt. Louis

DFW - STL

DFWSTL

Dallas/Fort Worth

Sun 8/31

7:25 am-9:18 am

Nonstop1h 53m

Lambert-St Louis

Sun 9/7

4:00 pm-10:08 pm

1 stop6h 08m

$114

DallasChicago

DFW - ORD

DFWORD

Dallas/Fort Worth

Wed 9/17

8:00 am-10:40 am

Nonstop2h 40m

Chicago O'Hare Intl

Sun 9/21

6:00 am-9:16 am

1 stop27h 16m

$114

DallasChicago

DFW - ORD

DFWORD

Dallas/Fort Worth

Sun 9/14

10:25 pm-9:37 am

1 stop11h 12m

Chicago O'Hare Intl

Sat 9/20

5:30 pm-8:21 pm

Nonstop2h 51m

$114

DallasChicago

DFW - ORD

DFWORD

Dallas/Fort Worth

Sat 9/20

9:27 pm-11:58 pm

Nonstop2h 31m

Chicago O'Hare Intl

Mon 9/22

6:00 am-12:23 am

1 stop18h 23m

$114

DallasChicago

DFW - ORD

DFWORD

Dallas/Fort Worth

Wed 9/17

8:00 am-10:40 am

Nonstop2h 40m

Chicago O'Hare Intl

Mon 9/22

6:00 am-12:23 am

1 stop18h 23m

$114

DallasChicago

DFW - ORD

DFWORD

Dallas/Fort Worth

Sat 9/20

9:27 pm-11:58 pm

Nonstop2h 31m

Chicago O'Hare Intl

Sun 9/21

6:00 am-9:16 am

1 stop27h 16m

$114

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/17

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

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

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

Currently, August is the cheapest month in which you can book a flight from Dallas to Illinois (average of $245). Flying from Dallas 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 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 18, 2025.

When flying from Dallas 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 to Illinois

Explore weekly flight availability from Dallas 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 18, 2025.

The most flights from A78 to USIL are scheduled on a Sunday (77 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (35 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 18, 2025.
See what other customers who have flown with Southwest, United Airlines, and American Airlines from Dallas 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
4,246 reviews

Overall

8.0

Entertainment

7.5

Boarding

8.1

Crew

8.6

Comfort

8.0

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
4,246 reviews
Southwest
8.0
Very good
4,246 reviews

Overall

8.0

Entertainment

7.5

Boarding

8.1

Crew

8.6

Comfort

8.0

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
8,925 reviews
Southwest
8.0
Very good
4,246 reviews

Overall

8.0

Entertainment

7.5

Boarding

8.1

Crew

8.6

Comfort

8.0

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
4,246 reviews

Overall

8.0

Entertainment

7.5

Boarding

8.1

Crew

8.6

Comfort

8.0

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
8,038 reviews
Southwest
8.0
Very good
4,246 reviews

Overall

8.0

Entertainment

7.5

Boarding

8.1

Crew

8.6

Comfort

8.0

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
3,212 reviews
Southwest
8.0
Very good
4,246 reviews

Overall

8.0

Entertainment

7.5

Boarding

8.1

Crew

8.6

Comfort

8.0

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 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 cheapest airlines to fly from Dallas to Illinois one-way?

    To fly one-way, consider booking your trip with Frontier, which is currently one of the cheapest options available, starting at $29. Southwest flights start at $70 while deals on United Airlines start at $70 one-way.

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

    The most popular flight routes from Dallas to Illinois are Dallas/Fort Worth - Chicago O'Hare Intl, Dallas/Fort Worth - Chicago Midway and Dallas Love Field - Chicago O'Hare Intl.

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

    The top 3 most reliable airlines when flying from Dallas to Illinois are Turkish Airlines (90%), SWISS (81%) and Austrian Airlines (81%).

  • What are the cheapest flights from Dallas to Illinois?

    Looking for the cheapest flight from Dallas to Illinois? While on average our users pay $1,004, our data indicates the cheapest price to be $67. The most popular route (Dallas/Fort Worth - Chicago O'Hare Intl), is priced around $85.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Dallas 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 to Illinois?

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

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Alternative routes for Dallas 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 to Illinois

Discover the top 6 airlines that operate flights from Dallas 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 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$57Average$167FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$59Average$134FlexibilityNo cancel feeOn-time65%
ContourCheapest$134Average$247FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$147Average$290FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$157Average$462FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$160Average$314FlexibilityNo cancel feeOn-time69%

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