What is the cheapest airline that flies from Dallas to Illinois?

Frontier, Southwest, and Delta are the most popular carriers operating from Dallas to Illinois

How many flights depart from Dallas to Illinois on average per week?

As of September 2026, there are 711 flights per week flying from Dallas to Illinois. The most common day of the week flights depart is Sun, with 20% of flights taking off on this day.

How many flights depart from Dallas to Illinois on average per day?

The number of flights available between Dallas and Illinois is 101 per day as of September 2026. The most frequent departure time is 1:00PM, with 46% of daily flights leaving in the afternoon.

What airlines fly to Illinois?

Frontier, American Airlines and United Airlines are the top three most popular airlines that fly to Illinois from Dallas according to our data. Frontier is the first choice among our users, with 41% of people opting to fly with this airline when traveling to Illinois. Keep in mind that there are 7 different airlines that fly to Illinois on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Dallas to Illinois?

Prices for flights from Dallas to Illinois are refreshed on a daily basis.

How many operators does momondo search for flights from Dallas to Illinois?

There are 7 operators available for flights from Dallas to Illinois as of September 2026.

How old do you have to be to fly from Dallas to Illinois?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Dallas to Illinois.

What documentation or ID do you need to fly to Illinois?

The required travel and health documents for your Illinois trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Illinois. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$55 Cheap Flights from Dallas to Illinois in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Dallas to Illinois

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

8:05 am - 1:10 pmDFW Dallas/Fort Worth-STL Lambert-St Louis

5h 05m1 stop Atlanta Hartsfield-Jackson

6:35 pm - 12:12 pmSTL Lambert-St Louis-DFW Dallas/Fort Worth

17h 37m2 stops Atlanta Hartsfield-Jackson Minneapolis St Paul

$191Frontier

Mon, Oct 5 - Mon, Oct 12

9:30 am - 11:19 amDFW Dallas/Fort Worth-STL Lambert-St Louis

1h 49mnonstop

12:14 pm - 2:17 pmSTL Lambert-St Louis-DFW Dallas/Fort Worth

2h 03mnonstop

$192Frontier

Fri, Nov 13 - Sun, Nov 15

5:30 am - 10:38 amDFW Dallas/Fort Worth-ORD Chicago O'Hare Intl

5h 08m1 stop Minneapolis St Paul

6:00 am - 12:13 pmORD Chicago O'Hare Intl-DFW Dallas/Fort Worth

6h 13m1 stop Atlanta Hartsfield-Jackson

$222Multiple Airlines

Mon, Oct 12 - Wed, Oct 21

5:30 am - 3:03 pmDFW Dallas/Fort Worth-ORD Chicago O'Hare Intl

9h 33m1 stop Minneapolis St Paul

8:30 am - 11:17 amORD Chicago O'Hare Intl-DFW Dallas/Fort Worth

2h 47mnonstop

$222Multiple Airlines

Sat, Oct 10 - Tue, Oct 13

4:16 pm - 6:04 pmDFW Dallas/Fort Worth-STL Lambert-St Louis

1h 48mnonstop

12:47 pm - 2:42 pmSTL Lambert-St Louis-DFW Dallas/Fort Worth

1h 55mnonstop

$237American Airlines

Sat, Oct 3 - Tue, Oct 6

8:13 pm - 9:59 pmDFW Dallas/Fort Worth-STL Lambert-St Louis

1h 46mnonstop

5:40 am - 7:40 amSTL Lambert-St Louis-DFW Dallas/Fort Worth

2h 00mnonstop

$237American Airlines

Mon, Oct 5 - Mon, Oct 12

11:20 am - 1:05 pmDAL Dallas Love Field-STL Lambert-St Louis

1h 45mnonstop

8:55 pm - 10:40 pmSTL Lambert-St Louis-DAL Dallas Love Field

1h 45mnonstop

$237Southwest

Wed, Oct 7 - Wed, Oct 14

6:15 pm - 8:00 pmDAL Dallas Love Field-STL Lambert-St Louis

1h 45mnonstop

8:55 pm - 10:40 pmSTL Lambert-St Louis-DAL Dallas Love Field

1h 45mnonstop

$237Southwest

Sat, Oct 10 - Wed, Oct 14

6:05 pm - 11:54 pmDFW Dallas/Fort Worth-STL Lambert-St Louis

5h 49m1 stop Atlanta Hartsfield-Jackson

2:25 pm - 9:52 pmSTL Lambert-St Louis-DFW Dallas/Fort Worth

7h 27m1 stop Atlanta Hartsfield-Jackson

$257Delta

Tue, Oct 20 - Tue, Oct 27

6:12 am - 1:20 pmDAL Dallas Love Field-STL Lambert-St Louis

7h 08m1 stop Atlanta Hartsfield-Jackson

5:35 pm - 10:39 pmSTL Lambert-St Louis-DAL Dallas Love Field

5h 04m1 stop Atlanta Hartsfield-Jackson

$257Delta

Wed, Oct 21 - Tue, Oct 27

Cheap last minute flights

Enter your travel dates to find the best prices.

4:48 pm - 7:31 pmDFW Dallas/Fort Worth-ORD Chicago O'Hare Intl

2h 43mnonstop

1:01 pm - 3:47 pmORD Chicago O'Hare Intl-DFW Dallas/Fort Worth

2h 46mnonstop

$202Frontier

Wed, Sep 9 - Thu, Sep 10

9:36 am - 11:59 amDFW Dallas/Fort Worth-MDW Chicago Midway

2h 23mnonstop

12:54 pm - 3:25 pmMDW Chicago Midway-DFW Dallas/Fort Worth

2h 31mnonstop

$204Frontier

Thu, Sep 10 - Fri, Sep 11

9:15 am - 11:52 amDFW Dallas/Fort Worth-ORD Chicago O'Hare Intl

2h 37mnonstop

2:40 pm - 7:15 pmORD Chicago O'Hare Intl-DFW Dallas/Fort Worth

4h 35m1 stop Kirksville Cannon Memorial

$238Multiple Airlines

Wed, Sep 9 - Thu, Sep 10

9:15 am - 11:52 amDFW Dallas/Fort Worth-ORD Chicago O'Hare Intl

2h 37mnonstop

2:40 pm - 7:15 pmORD Chicago O'Hare Intl-DFW Dallas/Fort Worth

4h 35m1 stop Kirksville Cannon Memorial

$238Multiple Airlines

Wed, Sep 9 - Mon, Sep 14

9:30 am - 1:55 pmDFW Dallas/Fort Worth-ORD Chicago O'Hare Intl

4h 25m1 stop Kirksville Cannon Memorial

2:40 pm - 7:15 pmORD Chicago O'Hare Intl-DFW Dallas/Fort Worth

4h 35m1 stop Kirksville Cannon Memorial

$279Contour

Thu, Sep 10 - Thu, Sep 17

9:30 am - 1:55 pmDFW Dallas/Fort Worth-ORD Chicago O'Hare Intl

4h 25m1 stop Kirksville Cannon Memorial

2:40 pm - 7:15 pmORD Chicago O'Hare Intl-DFW Dallas/Fort Worth

4h 35m1 stop Kirksville Cannon Memorial

$279Contour

Thu, Sep 10 - Mon, Sep 14

12:27 pm - 6:41 pmDFW Dallas/Fort Worth-ORD Chicago O'Hare Intl

6h 14m1 stop Atlanta Hartsfield-Jackson

6:10 am - 2:18 pmORD Chicago O'Hare Intl-DFW Dallas/Fort Worth

8h 08m2 stops Minneapolis St Paul Detroit Metropolitan Wayne County

$349Delta

Wed, Sep 9 - Sat, Sep 26

7:30 am - 10:08 amDFW Dallas/Fort Worth-ORD Chicago O'Hare Intl

2h 38mnonstop

7:09 am - 9:51 amORD Chicago O'Hare Intl-DFW Dallas/Fort Worth

2h 42mnonstop

$351American Airlines

Thu, Sep 10 - Sat, Sep 12

8:51 pm - 11:30 pmDFW Dallas/Fort Worth-ORD Chicago O'Hare Intl

2h 39mnonstop

1:46 pm - 4:21 pmORD Chicago O'Hare Intl-DFW Dallas/Fort Worth

2h 35mnonstop

$351American Airlines

Fri, Sep 11 - Sat, Sep 12

6:40 am - 12:41 pmDFW Dallas/Fort Worth-ORD Chicago O'Hare Intl

6h 01m1 stop Atlanta Hartsfield-Jackson

6:40 am - 12:51 pmORD Chicago O'Hare Intl-DFW Dallas/Fort Worth

6h 11m1 stop Atlanta Hartsfield-Jackson

$371Delta

Thu, Sep 10 - Fri, Sep 11

Cheap direct flights

Enter your travel dates to find the best prices.

9:30 am - 11:19 amDFW Dallas/Fort Worth-STL Lambert-St Louis

1h 49mnonstop

12:14 pm - 2:17 pmSTL Lambert-St Louis-DFW Dallas/Fort Worth

2h 03mnonstop

$192Frontier

Fri, Nov 13 - Sun, Nov 15

3:02 pm - 4:58 pmDFW Dallas/Fort Worth-STL Lambert-St Louis

1h 56mnonstop

5:53 pm - 7:54 pmSTL Lambert-St Louis-DFW Dallas/Fort Worth

2h 01mnonstop

$192Frontier

Sun, Oct 25 - Mon, Oct 26

3:02 pm - 4:58 pmDFW Dallas/Fort Worth-STL Lambert-St Louis

1h 56mnonstop

5:53 pm - 7:54 pmSTL Lambert-St Louis-DFW Dallas/Fort Worth

2h 01mnonstop

$193Frontier

Thu, Oct 8 - Thu, Oct 15

4:16 pm - 6:04 pmDFW Dallas/Fort Worth-STL Lambert-St Louis

1h 48mnonstop

12:47 pm - 2:42 pmSTL Lambert-St Louis-DFW Dallas/Fort Worth

1h 55mnonstop

$237American Airlines

Sat, Oct 3 - Tue, Oct 6

8:13 pm - 9:59 pmDFW Dallas/Fort Worth-STL Lambert-St Louis

1h 46mnonstop

5:40 am - 7:40 amSTL Lambert-St Louis-DFW Dallas/Fort Worth

2h 00mnonstop

$237American Airlines

Mon, Oct 5 - Mon, Oct 12

11:20 am - 1:05 pmDAL Dallas Love Field-STL Lambert-St Louis

1h 45mnonstop

8:55 pm - 10:40 pmSTL Lambert-St Louis-DAL Dallas Love Field

1h 45mnonstop

$237Southwest

Wed, Oct 7 - Wed, Oct 14

6:15 pm - 8:00 pmDAL Dallas Love Field-STL Lambert-St Louis

1h 45mnonstop

8:55 pm - 10:40 pmSTL Lambert-St Louis-DAL Dallas Love Field

1h 45mnonstop

$237Southwest

Sat, Oct 10 - Wed, Oct 14

7:22 pm - 10:00 pmDFW Dallas/Fort Worth-ORD Chicago O'Hare Intl

2h 38mnonstop

12:40 pm - 3:17 pmORD Chicago O'Hare Intl-DFW Dallas/Fort Worth

2h 37mnonstop

$297United Airlines

Wed, Sep 30 - Wed, Oct 7

7:00 am - 9:34 amDFW Dallas/Fort Worth-ORD Chicago O'Hare Intl

2h 34mnonstop

8:50 am - 11:29 amORD Chicago O'Hare Intl-DFW Dallas/Fort Worth

2h 39mnonstop

$297United Airlines

Wed, Feb 10 - Sat, Feb 13

5:53 am - 8:38 amDFW Dallas/Fort Worth-ORD Chicago O'Hare Intl

2h 45mnonstop

9:29 pm - 12:08 amORD Chicago O'Hare Intl-DFW Dallas/Fort Worth

2h 39mnonstop

$297American Airlines

Tue, Sep 29 - Mon, Oct 5

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Delta flights from Dallas to Illinois

Our best Delta deals on Dallas to Illinois flight tickets

Delta

Oct 20

DAL6:12 amDallas Love Field

7h 08m

1 stop

STL1:20 pmLambert-St Louis

Oct 28

STL7:00 amLambert-St Louis

7h 11m

1 stop

DAL2:11 pmDallas Love Field

$257

Delta

Oct 23

DAL6:50 pmDallas Love Field

5h 04m

1 stop

STL11:54 pmLambert-St Louis

Oct 28

STL7:00 amLambert-St Louis

7h 11m

1 stop

DAL2:11 pmDallas Love Field

$298

Delta

Oct 20

DAL6:50 pmDallas Love Field

5h 07m

1 stop

ORD11:57 pmChicago O'Hare Intl

Oct 24

ORD8:05 amChicago O'Hare Intl

6h 06m

1 stop

DAL2:11 pmDallas Love Field

$317

Frontier flights from Dallas to Illinois

Our best Frontier deals on Dallas to Illinois flight tickets

Frontier

Oct 5

DFW8:05 amDallas/Fort Worth

5h 05m

1 stop

STL1:10 pmLambert-St Louis

Oct 12

STL6:35 pmLambert-St Louis

17h 37m

2 stops

DFW12:12 pmDallas/Fort Worth

$191

Frontier

Oct 1

DFW10:59 pmDallas/Fort Worth

12h 18m

1 stop

STL11:17 amLambert-St Louis

Oct 9

STL5:53 pmLambert-St Louis

2h 01m

DFW7:54 pmDallas/Fort Worth

$192

Frontier

Oct 8

DFW3:02 pmDallas/Fort Worth

1h 56m

STL4:58 pmLambert-St Louis

Oct 15

STL5:53 pmLambert-St Louis

2h 01m

DFW7:54 pmDallas/Fort Worth

$193

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

DallasSt. Louis

DFW Dallas/Fort Worth - STL Lambert-St Louis

DFWSTL

Dallas/Fort Worth

Mon 10/5

8:05 am-1:10 pm

1 stop5h 05m

Lambert-St Louis

Mon 10/12

6:35 pm-12:12 pm

2 stops17h 37m

$191

DallasSt. Louis

DFW Dallas/Fort Worth - STL Lambert-St Louis

DFWSTL

Dallas/Fort Worth

Fri 11/13

9:30 am-11:19 am

Nonstop1h 49m

Lambert-St Louis

Sun 11/15

12:14 pm-2:17 pm

Nonstop2h 03m

$192

DallasChicago

DFW Dallas/Fort Worth - ORD Chicago O'Hare Intl

DFWORD

Dallas/Fort Worth

Mon 10/12

5:30 am-10:38 am

1 stop5h 08m

Chicago O'Hare Intl

Wed 10/21

6:00 am-12:13 pm

1 stop6h 13m

$222

DallasChicago

DFW Dallas/Fort Worth - ORD Chicago O'Hare Intl

DFWORD

Dallas/Fort Worth

Sat 10/10

5:30 am-3:03 pm

1 stop9h 33m

Chicago O'Hare Intl

Tue 10/13

8:30 am-11:17 am

Nonstop2h 47m

$222

DallasSt. Louis

DFW Dallas/Fort Worth - STL Lambert-St Louis

DFWSTL

Dallas/Fort Worth

Sat 10/3

4:16 pm-6:04 pm

Nonstop1h 48m

Lambert-St Louis

Tue 10/6

12:47 pm-2:42 pm

Nonstop1h 55m

$237

DallasSt. Louis

DFW Dallas/Fort Worth - STL Lambert-St Louis

DFWSTL

Dallas/Fort Worth

Mon 10/5

8:13 pm-9:59 pm

Nonstop1h 46m

Lambert-St Louis

Mon 10/12

5:40 am-7:40 am

Nonstop2h 00m

$237

Quickest round-trip

DallasSt. Louis

DAL Dallas Love Field - STL Lambert-St Louis

DALSTL

Dallas Love Field

Wed 10/7

11:20 am-1:05 pm

Nonstop1h 45m

Lambert-St Louis

Wed 10/14

8:55 pm-10:40 pm

Nonstop1h 45m

$237

DallasSt. Louis

DAL Dallas Love Field - STL Lambert-St Louis

DALSTL

Dallas Love Field

Sat 10/10

6:15 pm-8:00 pm

Nonstop1h 45m

Lambert-St Louis

Wed 10/14

8:55 pm-10:40 pm

Nonstop1h 45m

$237

DallasSt. Louis

DFW Dallas/Fort Worth - STL Lambert-St Louis

DFWSTL

Dallas/Fort Worth

Tue 10/20

6:05 pm-11:54 pm

1 stop5h 49m

Lambert-St Louis

Tue 10/27

2:25 pm-9:52 pm

1 stop7h 27m

$257

DallasSt. Louis

DAL Dallas Love Field - STL Lambert-St Louis

DALSTL

Dallas Love Field

Wed 10/21

6:12 am-1:20 pm

1 stop7h 08m

Lambert-St Louis

Tue 10/27

5:35 pm-10:39 pm

1 stop5h 04m

$257

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Dallas to Illinois

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

What is the cheapest month to fly to Illinois?

The cheapest month to fly to Illinois from Dallas is in January. Flight prices, which tend to average around $196, are often lower during this time because this is during the off-season. If you aren’t able to travel to Illinois during the month of January, then flying in November is also cheap. Prices for this month can be found on momondo for an average of $202.

What is the cheapest day to depart on your flight to Illinois?

The cheapest day to depart from Dallas to Illinois is on a Friday when prices can be found for as low as $300. Flights from Dallas to Illinois on a Sunday will generally be more expensive and average around $537. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Illinois?

Our most recent data shows that the best time of day to fly to Illinois is in the evening. Flights from Dallas to Illinois during this time can be as low as $272. Flights in the afternoon are often more expensive with an average ticket price of $449.

What is the cheapest Dallas to Illinois flight route?

Fly from Dallas/Fort Worth to Chicago Midway for the best Dallas - Illinois flight prices

How far in advance should I book a flight from Dallas to Illinois?

You are more likely to see cheaper flights to Illinois from Dallas when booking weeks ahead of your departure date. In general, you can expect to find flights to Illinois for around $275 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Illinois from Dallas for as low as $198 on momondo.

What cabin class options are available on Dallas to Illinois flights?

There are 4 cabin classes available to choose from on Dallas to Illinois flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Cheap Dallas to Illinois flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Dallas to Illinois

Best Price Found	$55
Fastest flight time	1h 35m
Direct flights	Every day
Airports in Illinois	98 airports

The best one-way flight to Illinois from Dallas in the past 72 hours is $55. The best round-trip flight deal from Dallas to Illinois found on momondo in the last 72 hours is $191.

The fastest flight from Dallas to Illinois takes 1h 35m

Direct flights go from Dallas to Illinois every day.

There are 98 airports in Illinois. From Dallas there are direct flights to Lambert-St Louis (STL).

Search flight deals

Frequently asked questions about flying from Dallas to Illinois

When did momondo last update prices for flights from Dallas to Illinois?
Prices for flights from Dallas to Illinois are refreshed on a daily basis.
How many operators does momondo search for flights from Dallas to Illinois?
There are 7 operators available for flights from Dallas to Illinois as of September 2026.
How old do you have to be to fly from Dallas to Illinois?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Dallas to Illinois.
What documentation or ID do you need to fly to Illinois?
The required travel and health documents for your Illinois trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Illinois. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from Dallas to Illinois

Compare and see reviews for airlines that fly from Dallas to Illinois with momondo

Airline	Rating	Free Cancellation	Price
Frontier	PriceFrom $66	Free Cancellation	Rating 5.6 2,614 reviews	Search Frontier flights
Contour	PriceFrom $105	Free Cancellation	Rating 7.5 43 reviews	Search Contour flights
Southwest	PriceFrom $147	Free Cancellation	Rating 8.0 4,195 reviews	Search Southwest flights
Delta	PriceFrom $166	Free Cancellation	Rating 7.8 8,548 reviews	Search Delta flights
American Airlines	PriceFrom $176	Free Cancellation	Rating 7.1 12,042 reviews	Search American Airlines flights
United Airlines	PriceFrom $186	Free Cancellation	Rating 7.4 10,173 reviews	Search United Airlines flights
JetBlue	PriceFrom $195	Free Cancellation	Rating 7.1 3,046 reviews	Search JetBlue flights

Why use momondo?

Why should I use momondo to find a flight deal from Dallas to Illinois?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Dallas to Illinois. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Dallas to Illinois with flexible booking policies on momondo?

Flights from Dallas to Illinois with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Dallas to Illinois?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Illinois from Dallas.

I’m not ready to book a flight from Dallas to Illinois right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Dallas to Illinois flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.