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

As of February 2026, there are 898 flights per week flying from Oklahoma to Illinois. The most common day of the week flights depart is Mon, with 17% of flights taking off on this day.

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

As of February 2026, there are 128 flights per day flying from Oklahoma to Illinois. The most common time of day flights depart is 10:00AM, with 71% of flights taking off at noon.

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

Spirit Airlines, Frontier, and Southwest are the most popular carriers operating from Oklahoma to Illinois

What airlines fly to Illinois?

American Airlines, United Airlines and Southwest are the top three most popular airlines that fly to Illinois from Oklahoma according to our data. American Airlines is the first choice among our users, with 58% of people opting to fly with this airline when traveling to Illinois. Keep in mind that there are 4 different airlines that fly to Illinois on a routine basis, so you have a few additional options to choose from.

How long is the flight from Oklahoma to Illinois?

The flight from Oklahoma to Illinois depends on which airports you’re departing and arriving from and whether or not you have a layover. If you fly from Tulsa (a popular airport in Oklahoma) to Chicago O'Hare Intl Airport (the most popular airport in Illinois), then the flight time is 2h on average. If you fly from Oklahoma City (another popular airport in Oklahoma) to Chicago O'Hare Intl Airport, then the average flight time is 2h 14m.

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

Prices for flights from Oklahoma to Illinois refresh daily.

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

There are 7 operators available for flights from Oklahoma to Illinois as of February 2026.

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

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Oklahoma to Illinois.

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

The necessary travel and health documents for your Illinois trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$54 Cheap Flights from Oklahoma to Illinois in 2026

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Find the cheapest flights from Oklahoma to Illinois

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

10:17 pm - 12:53 am

DFW

ORD

2h 36mnonstop

6:14 pm - 9:15 pm

ORD

DFW

3h 01mnonstop

$81Frontier

Mon, Mar 9 - Thu, Mar 12

8:03 pm - 10:21 pm

DFW

MDW

2h 18mnonstop

4:09 pm - 7:03 pm

MDW

DFW

2h 54mnonstop

$81Frontier

Fri, Apr 17 - Mon, Apr 20

7:18 am - 7:11 pm

DFW

ORD

11h 53m

1 stop

4:28 pm - 7:29 pm

ORD

DFW

3h 01mnonstop

$83Multiple Airlines

Tue, Mar 3 - Wed, Mar 11

7:50 am - 1:56 pm

DFW

MDW

30h 06m

1 stop

9:16 pm - 11:59 pm

MDW

DFW

2h 43mnonstop

$91Multiple Airlines

Wed, Mar 4 - Sat, Mar 7

7:25 pm - 11:46 pm

OKC

STL

4h 21m

1 stop

6:11 pm - 11:55 pm

STL

OKC

5h 44m

1 stop

$178American Airlines

Fri, May 1 - Sat, May 2

6:37 pm - 11:22 pm

OKC

STL

4h 45m

1 stop

5:12 am - 9:47 am

STL

OKC

4h 35m

1 stop

$205American Airlines

Wed, Feb 18 - Sun, Feb 22

3:10 pm - 4:50 pm

TUL

MDW

1h 40mnonstop

6:15 pm - 8:10 pm

MDW

TUL

1h 55mnonstop

$236Southwest

Wed, Apr 8 - Sat, Apr 11

10:45 am - 3:25 pm

TUL

MDW

4h 40m

1 stop

6:15 pm - 8:10 pm

MDW

TUL

1h 55mnonstop

$246Southwest

Wed, Apr 8 - Sat, Apr 11

6:25 pm - 8:25 pm

XNA

ORD

2h 00mnonstop

12:40 pm - 2:42 pm

ORD

XNA

2h 02mnonstop

$248United Airlines

Sat, Mar 21 - Tue, Mar 24

2:20 pm - 4:25 pm

TUL

ORD

2h 05mnonstop

8:45 am - 11:12 am

ORD

TUL

2h 27mnonstop

$249United Airlines

Wed, Feb 25 - Wed, Mar 4

United Airlines flights from Oklahoma to Illinois

Our best United Airlines deals on Oklahoma to Illinois flight tickets

United Airlines

Mar 21

XNA6:25 pmFayetteville Northwest Arkansas

2h 00m

ORD8:25 pmChicago O'Hare Intl

Mar 24

ORD12:40 pmChicago O'Hare Intl

2h 02m

XNA2:42 pmFayetteville Northwest Arkansas

$248

United Airlines

Feb 25

TUL2:20 pmTulsa

2h 05m

ORD4:25 pmChicago O'Hare Intl

Feb 28

ORD3:40 pmChicago O'Hare Intl

2h 16m

TUL5:56 pmTulsa

$249

United Airlines

Feb 16

XNA7:45 amFayetteville Northwest Arkansas

2h 03m

ORD9:48 amChicago O'Hare Intl

Feb 24

ORD7:48 pmChicago O'Hare Intl

2h 11m

XNA9:59 pmFayetteville Northwest Arkansas

$299

Frontier flights from Oklahoma to Illinois

Our best Frontier deals on Oklahoma to Illinois flight tickets

Frontier

Mar 9

DFW10:17 pmDallas/Fort Worth

2h 36m

ORD12:53 amChicago O'Hare Intl

Mar 12

ORD6:14 pmChicago O'Hare Intl

3h 01m

DFW9:15 pmDallas/Fort Worth

$81

Frontier

Apr 17

DFW9:10 amDallas/Fort Worth

2h 32m

ORD11:42 amChicago O'Hare Intl

Apr 17

ORD6:09 pmChicago O'Hare Intl

2h 58m

DFW9:07 pmDallas/Fort Worth

$82

Frontier

Feb 28

DFW8:42 pmDallas/Fort Worth

2h 35m

ORD11:17 pmChicago O'Hare Intl

Mar 7

ORD5:44 pmChicago O'Hare Intl

2h 54m

DFW8:38 pmDallas/Fort Worth

$84

Fly from

Fly to

Route

Depart

Return

Price

DallasChicago

DFW - ORD

DFWORD

Dallas/Fort Worth

Mon 3/9

10:17 pm-12:53 am

Nonstop2h 36m

Chicago O'Hare Intl

Thu 3/12

6:14 pm-9:15 pm

Nonstop3h 01m

$81

DallasChicago

DFW - MDW

DFWMDW

Dallas/Fort Worth

Fri 4/17

8:03 pm-10:21 pm

Nonstop2h 18m

Chicago Midway

Mon 4/20

4:09 pm-7:03 pm

Nonstop2h 54m

$81

DallasChicago

DFW - ORD

DFWORD

Dallas/Fort Worth

Tue 3/3

7:18 am-7:11 pm

1 stop11h 53m

Chicago O'Hare Intl

Wed 3/11

4:28 pm-7:29 pm

Nonstop3h 01m

$83

DallasChicago

DFW - MDW

DFWMDW

Dallas/Fort Worth

Wed 3/4

7:50 am-1:56 pm

1 stop30h 06m

Chicago Midway

Sat 3/7

9:16 pm-11:59 pm

Nonstop2h 43m

$91

Oklahoma CitySt. Louis

OKC - STL

OKCSTL

Oklahoma City Will Rogers World

Fri 5/1

7:25 pm-11:46 pm

1 stop4h 21m

Lambert-St Louis

Sat 5/2

6:11 pm-11:55 pm

1 stop5h 44m

$178

Oklahoma CitySt. Louis

OKC - STL

OKCSTL

Oklahoma City Will Rogers World

Wed 2/18

6:37 pm-11:22 pm

1 stop4h 45m

Lambert-St Louis

Sun 2/22

5:12 am-9:47 am

1 stop4h 35m

$205

TulsaChicago

TUL - MDW

TULMDW

Tulsa

Wed 4/8

3:10 pm-4:50 pm

Nonstop1h 40m

Chicago Midway

Sat 4/11

6:15 pm-8:10 pm

Nonstop1h 55m

$236

TulsaChicago

TUL - MDW

TULMDW

Tulsa

Wed 4/8

10:45 am-3:25 pm

1 stop4h 40m

Chicago Midway

Sat 4/11

6:15 pm-8:10 pm

Nonstop1h 55m

$246

FayettevilleChicago

XNA - ORD

XNAORD

Fayetteville Northwest Arkansas

Sat 3/21

6:25 pm-8:25 pm

Nonstop2h 00m

Chicago O'Hare Intl

Tue 3/24

12:40 pm-2:42 pm

Nonstop2h 02m

$248

TulsaChicago

TUL - ORD

TULORD

Tulsa

Wed 2/25

2:20 pm-4:25 pm

Nonstop2h 05m

Chicago O'Hare Intl

Wed 3/4

8:45 am-11:12 am

Nonstop2h 27m

$249

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 Oklahoma 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 Oklahoma is in September. Flight prices, which tend to average around $264, 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 September, then flying in January is also cheap. Prices for this month can be found on momondo for an average of $327.

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

The cheapest day to depart from Oklahoma to Illinois is on a Thursday when prices can be found for as low as $528. Flights from Oklahoma to Illinois on a Sunday will generally be more expensive and average around $797. 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 morning. Flights from Oklahoma to Illinois during this time can be as low as $524. Flights in the evening are often more expensive with an average ticket price of $919.

What is the cheapest Oklahoma to Illinois flight route?

Fly from Tulsa to Chicago Midway for the best Oklahoma - Illinois flight prices

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

You are more likely to see cheaper flights to Illinois from Oklahoma when booking weeks ahead of your departure date. In general, you can expect to find flights to Illinois for around $374 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Illinois from Oklahoma for as low as $304 on momondo.

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

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

Can stopping save me money on Oklahoma to Illinois flights?

You could potentially save up to 13% on your flight if you consider stops on a Oklahoma to Illinois flight.

Cheap Oklahoma to Illinois flight deals and tips

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

Best Price Found	$185
Fastest flight time	1h 15m
Direct flights	Every day
Airports in Illinois	98 airports

The best one-way flight to Illinois from Oklahoma in the past 72 hours is $185. The best round-trip flight deal from Oklahoma to Illinois found on momondo in the last 72 hours is $353.

The fastest flight from Oklahoma to Illinois takes 1h 15m

Direct flights go from Oklahoma to Illinois every day.

There are 98 airports in Illinois. From Oklahoma there are direct flights to Chicago O'Hare Intl (ORD), Chicago Midway (MDW), Lambert-St Louis (STL).

Search flight deals

When did momondo last update prices for flights from Oklahoma to Illinois?
Prices for flights from Oklahoma to Illinois refresh daily.
How many operators does momondo search for flights from Oklahoma to Illinois?
There are 7 operators available for flights from Oklahoma to Illinois as of February 2026.
How old do you have to be to fly from Oklahoma to Illinois?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Oklahoma to Illinois.
What documentation or ID do you need to fly to Illinois?
The necessary travel and health documents for your Illinois trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Oklahoma to Illinois?
momondo data reveals that the most frequently booked plane model on the route from Oklahoma to Illinois is Embraer 175 (Enhanced Winglets), representing 25.08% of all bookings. The subsequent popular models are Embraer 175 at 18.92%, Canadair (Bombardier) Regional Jet 700 at 17.82%, and Embraer 170 at 13.42%.

Best airlines flying from Oklahoma to Illinois

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

Airline	Rating	Free Cancellation	Price
Frontier	PriceFrom $151	Free Cancellation	Rating 5.7 3,052 reviews	Search Frontier flights
United Airlines	PriceFrom $182	Free Cancellation	Rating 7.4 9,236 reviews	Search United Airlines flights
American Airlines	PriceFrom $189	Free Cancellation	Rating 7.2 11,222 reviews	Search American Airlines flights
Southwest	PriceFrom $197	Free Cancellation	Rating 8.0 4,274 reviews	Search Southwest flights

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Oklahoma to Illinois for you.

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

momondo does allow users to show only those flights to Illinois from Oklahoma which offer a flexible booking policy as well as other useful filters and features.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Oklahoma to Illinois.

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

Price alerts on flights to Illinois from Oklahoma are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

An easier way to manage your Illinois trip

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Popular cities in Illinois

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Flights to Las Vegasfrom $49

Flights to Washington, D.C.from $51

Flights to Bostonfrom $51

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Flights to Dallasfrom $49

Flights to Seattlefrom $83

Cheap flights from Oklahoma to Illinois from $54

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Oklahoma to Illinois departing on 4/22. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Find the cheapest flights from Oklahoma to Illinois

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United Airlines flights from Oklahoma to Illinois

Our best United Airlines deals on Oklahoma to Illinois flight tickets

Frontier flights from Oklahoma to Illinois

Our best Frontier deals on Oklahoma to Illinois flight tickets

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Use the filters below to find and compare flights from Oklahoma to Illinois that are best for you.

See travel insights to Illinois from

How to get the cheapest flight ticket from Oklahoma to Illinois

What is the cheapest month to fly to Illinois?

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

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 morning. Flights from Oklahoma to Illinois during this time can be as low as $524. Flights in the evening are often more expensive with an average ticket price of $919.

What is the cheapest Oklahoma to Illinois flight route?

Fly from Tulsa to Chicago Midway for the best Oklahoma - Illinois flight prices

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

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

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

Can stopping save me money on Oklahoma to Illinois flights?

You could potentially save up to 13% on your flight if you consider stops on a Oklahoma to Illinois flight.

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

Spirit Airlines, Frontier, and Southwest are the most popular carriers operating from Oklahoma to Illinois

What airlines fly to Illinois?

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

As of February 2026, there are 128 flights per day flying from Oklahoma to Illinois. The most common time of day flights depart is 10:00AM, with 71% of flights taking off at noon.

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

As of February 2026, there are 898 flights per week flying from Oklahoma to Illinois. The most common day of the week flights depart is Mon, with 17% of flights taking off on this day.

How long is the flight from Oklahoma to Illinois?

Cheap Oklahoma to Illinois flight deals and tips

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

Best Price Found

Fastest flight time

Direct flights

Airports in Illinois

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

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

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

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

What is the most popular plane model from Oklahoma to Illinois?

Best airlines flying from Oklahoma to Illinois

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

Why use momondo?

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

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

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

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

An easier way to manage your Illinois trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Illinois

Popular cities in Illinois

Popular flights according to clicks in the last 7 days on momondo

Oklahoma flight routes

According to popular flight searches on momondo this year

Illinois flight routes

According to popular flight searches on momondo this year

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