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

Frontier, Contour, and Delta are the most popular carriers operating from Oklahoma to Illinois

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 15m.

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 50% 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 many flights depart from Oklahoma to Illinois on average per week?

As of May 2026, there are 1,355 flights per week flying from Oklahoma to Illinois. The most common day of the week flights depart is Fri, with 16% of flights taking off on this day.

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

As of May 2026, there are 193 flights per day flying from Oklahoma to Illinois. The most common time of day flights depart is 9:00AM, with 47% of flights taking off at noon.

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 8 operators available for flights from Oklahoma to Illinois as of May 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.

$57 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.

9:10 am - 11:43 am

DFW

ORD

2h 33mnonstop

9:10 am - 11:57 am

ORD

DFW

2h 47mnonstop

$128Frontier

Tue, Jun 9 - Wed, Jun 10

4:21 pm - 6:18 pm

DFW

STL

1h 57mnonstop

7:03 pm - 9:00 pm

STL

DFW

1h 57mnonstop

$135Frontier

Wed, Jun 10 - Tue, Jun 16

6:35 am - 8:48 am

TUL

ORD

2h 13mnonstop

9:40 am - 11:44 am

ORD

TUL

2h 04mnonstop

$237American Airlines

Tue, Jul 14 - Wed, Jul 15

6:45 am - 8:57 am

TUL

ORD

2h 12mnonstop

9:40 am - 11:47 am

ORD

TUL

2h 07mnonstop

$239American Airlines

Wed, Jun 24 - Wed, Jul 1

6:30 pm - 8:40 pm

TUL

ORD

2h 10mnonstop

9:20 pm - 11:25 pm

ORD

TUL

2h 05mnonstop

$251United Airlines

Mon, Jun 8 - Tue, Jun 16

2:21 pm - 8:52 pm

XNA

ORD

6h 31m

1 stop

5:30 pm - 11:02 am

ORD

XNA

17h 32m

1 stop

$267Multiple Airlines

Sat, Aug 8 - Wed, Aug 19

3:30 pm - 9:45 pm

XNA

MDW

6h 15m

1 stop

12:30 pm - 4:44 pm

MDW

XNA

4h 14m

1 stop

$289Delta

Sat, Oct 17 - Fri, Oct 23

1:53 pm - 10:37 am

DFW

RFD

20h 44m

1 stop

7:50 pm - 7:33 am

RFD

DFW

11h 43m

1 stop

$293Multiple Airlines

Sat, Aug 1 - Mon, Aug 3

3:30 pm - 9:45 pm

XNA

MDW

6h 15m

1 stop

12:30 pm - 4:44 pm

MDW

XNA

4h 14m

1 stop

$299Delta

Sat, Oct 17 - Fri, Oct 23

5:45 am - 1:57 pm

DFW

PIA

8h 12m

2 stops

10:44 am - 3:48 pm

PIA

DFW

5h 04m

1 stop

$358United Airlines

Wed, Jul 8 - Sat, Jul 11

American Airlines flights from Oklahoma to Illinois

Our best American Airlines deals on Oklahoma to Illinois flight tickets

American Airlines

Jul 14

TUL6:35 amTulsa

2h 13m

ORD8:48 amChicago O'Hare Intl

Jul 15

ORD9:40 amChicago O'Hare Intl

2h 04m

TUL11:44 amTulsa

$237

American Airlines

Jun 24

TUL6:45 amTulsa

2h 12m

ORD8:57 amChicago O'Hare Intl

Jul 1

ORD9:40 amChicago O'Hare Intl

2h 07m

TUL11:47 amTulsa

$239

American Airlines

Jun 6

TUL7:35 pmTulsa

2h 09m

ORD9:44 pmChicago O'Hare Intl

Jun 10

ORD11:15 amChicago O'Hare Intl

2h 05m

TUL1:20 pmTulsa

$240

Frontier flights from Oklahoma to Illinois

Our best Frontier deals on Oklahoma to Illinois flight tickets

Frontier

Jun 9

DFW9:10 amDallas/Fort Worth

2h 33m

ORD11:43 amChicago O'Hare Intl

Jun 10

ORD9:10 amChicago O'Hare Intl

2h 47m

DFW11:57 amDallas/Fort Worth

$128

Frontier

Jun 10

DFW4:21 pmDallas/Fort Worth

1h 57m

STL6:18 pmLambert-St Louis

Jun 17

STL7:03 pmLambert-St Louis

1h 57m

DFW9:00 pmDallas/Fort Worth

$135

Frontier

Jun 9

DFW4:37 pmDallas/Fort Worth

1h 57m

STL6:34 pmLambert-St Louis

Jun 10

STL7:04 pmLambert-St Louis

1h 57m

DFW9:01 pmDallas/Fort Worth

$136

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

DallasChicago

DFW - ORD

DFWORD

Dallas/Fort Worth

Tue 6/9

9:10 am-11:43 am

Nonstop2h 33m

Chicago O'Hare Intl

Wed 6/10

9:10 am-11:57 am

Nonstop2h 47m

$128

Quickest round-trip

DallasSt. Louis

DFW - STL

DFWSTL

Dallas/Fort Worth

Wed 6/10

4:21 pm-6:18 pm

Nonstop1h 57m

Lambert-St Louis

Tue 6/16

7:03 pm-9:00 pm

Nonstop1h 57m

$135

TulsaChicago

TUL - ORD

TULORD

Tulsa

Tue 7/14

6:35 am-8:48 am

Nonstop2h 13m

Chicago O'Hare Intl

Wed 7/15

9:40 am-11:44 am

Nonstop2h 04m

$237

TulsaChicago

TUL - ORD

TULORD

Tulsa

Wed 6/24

6:45 am-8:57 am

Nonstop2h 12m

Chicago O'Hare Intl

Wed 7/1

9:40 am-11:47 am

Nonstop2h 07m

$239

TulsaChicago

TUL - ORD

TULORD

Tulsa

Mon 6/8

6:30 pm-8:40 pm

Nonstop2h 10m

Chicago O'Hare Intl

Tue 6/16

9:20 pm-11:25 pm

Nonstop2h 05m

$251

FayettevilleChicago

XNA - ORD

XNAORD

Fayetteville Northwest Arkansas

Sat 8/8

2:21 pm-8:52 pm

1 stop6h 31m

Chicago O'Hare Intl

Wed 8/19

5:30 pm-11:02 am

1 stop17h 32m

$267

FayettevilleChicago

XNA - MDW

XNAMDW

Fayetteville Northwest Arkansas

Sat 10/17

3:30 pm-9:45 pm

1 stop6h 15m

Chicago Midway

Fri 10/23

12:30 pm-4:44 pm

1 stop4h 14m

$289

DallasChicago

DFW - RFD

DFWRFD

Dallas/Fort Worth

Sat 8/1

1:53 pm-10:37 am

1 stop20h 44m

Chicago Greater Rockford

Mon 8/3

7:50 pm-7:33 am

1 stop11h 43m

$293

FayettevilleChicago

XNA - MDW

XNAMDW

Fayetteville Northwest Arkansas

Sat 10/17

3:30 pm-9:45 pm

1 stop6h 15m

Chicago Midway

Fri 10/23

12:30 pm-4:44 pm

1 stop4h 14m

$299

DallasPeoria

DFW - PIA

DFWPIA

Dallas/Fort Worth

Wed 7/8

5:45 am-1:57 pm

2 stops8h 12m

Greater Peoria

Sat 7/11

10:44 am-3:48 pm

1 stop5h 04m

$358

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 July. Flight prices, which tend to average around $84, 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 July, then flying in September is also cheap. Prices for this month can be found on momondo for an average of $93.

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 $553. Flights from Oklahoma to Illinois on a Monday will generally be more expensive and average around $761. 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 $543. Flights in the evening are often more expensive with an average ticket price of $908.

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 from Oklahoma 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 $371 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 $266 on momondo.

Can stopping save me money on Oklahoma to Illinois flights?

No. A direct flight is the cheapest option for a flight between 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	$193
Fastest flight time	1h 40m
Direct flights	Every day
Airports in Illinois	98 airports

The best one-way flight to Illinois from Oklahoma in the past 72 hours is $193. The best round-trip flight deal from Oklahoma to Illinois found on momondo in the last 72 hours is $370.

The fastest flight from Oklahoma to Illinois takes 1h 40m

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

Frequently asked questions about flying from Oklahoma to Illinois

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 8 operators available for flights from Oklahoma to Illinois as of May 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 21.90% of all bookings. The subsequent popular models are Canadair (Bombardier) Regional Jet 700 at 17.97%, Embraer 170 at 12.07%, and Embraer 175 at 10.31%.

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 $138	Free Cancellation	Rating 5.6 2,955 reviews	Search Frontier flights
American Airlines	PriceFrom $189	Free Cancellation	Rating 7.1 11,668 reviews	Search American Airlines flights
Southwest	PriceFrom $197	Free Cancellation	Rating 7.9 4,301 reviews	Search Southwest flights
United Airlines	PriceFrom $230	Free Cancellation	Rating 7.4 9,694 reviews	Search United Airlines 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.

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Popular cities in Illinois

Flights to New Yorkfrom $54

Flights to Los Angelesfrom $56

Flights to Orlandofrom $50

Flights to Miamifrom $56

Flights to Chicagofrom $58

Flights to San Franciscofrom $56

Flights to Las Vegasfrom $46

Flights to Washington, D.C.from $56

Flights to Bostonfrom $83

Flights to Atlantafrom $56

Flights to Fort Lauderdalefrom $56

Flights to Dallasfrom $72

Cheap flights from Oklahoma to Illinois from $57

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 10/9. 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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American Airlines flights from Oklahoma to Illinois

Our best American Airlines deals on Oklahoma to Illinois flight tickets

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Our best Frontier deals on Oklahoma to Illinois flight tickets

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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?

What is the cheapest Oklahoma to Illinois flight route?

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

Can stopping save me money on Oklahoma to Illinois flights?

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

What airlines fly to Illinois?

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

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

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

Frequently asked questions about flying 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?

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

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According to popular flight searches on momondo this year

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