$45+ Cheap flights from Oklahoma 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 1/15. Fares are subject to change and may not be available on all flights or dates of travel.
Find cheap flights from Oklahoma to Illinois with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Oklahoma to Illinois
Discover tips and strategies to find the most affordable flight options for your journey from Oklahoma (USOK) to Illinois (USIL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated December 18, 2024.
Round-trip from | $100 (FlightHub) |
|---|---|
One-way from | $45 (FlightHub) |
Find flight deals from Oklahoma to Illinois
Cheapest flights from Oklahoma to IllinoisExplore the most affordable flight options available from Oklahoma to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 18, 2024.
Explore the most affordable flight options available from Oklahoma to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 18, 2024.
This Frontier deal was found by Cheapflights users on 12/17. 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.
This Kiwi.com deal was found by Cheapflights users on 12/17. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Cheapflightsfares deal was found by Cheapflights users on 12/17. 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.
This Cheapflightsfares deal was found by Cheapflights users on 12/17. 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.
This American Airlines deal was found by Cheapflights users on 12/16. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Kiwi.com deal was found by Cheapflights users on 12/17. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This American Airlines deal was found by Cheapflights users on 12/17. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This United Airlines deal was found by Cheapflights users on 12/17. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Delta deal was found by Cheapflights users on 12/17. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This American Airlines deal was found by Cheapflights users on 12/17. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Delta deal was found by Cheapflights users on 12/16. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This CheapOair deal was found by Cheapflights users on 12/17. 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.
Find flights from Oklahoma to Illinois within your budget
Customize your flight search to find flights from Oklahoma 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 December 18, 2024.
Fly from
Fly to
Route
Depart
Return
Price
DallasChicago
DFW - ORD
DFWORD
Dallas/Fort Worth
Sat 2/8
4:29 pm-5:55 am
1 stop13h 26m
Chicago O'Hare Intl
Sat 2/15
6:22 pm-9:09 pm
Nonstop2h 47m
DallasChicago
DFW - ORD
DFWORD
Dallas/Fort Worth
Fri 1/31
12:26 pm-3:00 pm
Nonstop2h 34m
Chicago O'Hare Intl
Wed 2/12
10:56 am-1:43 pm
Nonstop2h 47m
DallasChicago
DFW - MDW
DFWMDW
Dallas/Fort Worth
Fri 1/31
10:36 pm-12:54 am
Nonstop2h 18m
Chicago Midway
Wed 2/12
6:00 am-8:47 am
Nonstop2h 47m
DallasChicago
DFW - ORD
DFWORD
Dallas/Fort Worth
Thu 1/9
7:30 am-10:01 am
Nonstop2h 31m
Chicago O'Hare Intl
Tue 1/14
11:10 am-7:47 pm
1 stop8h 37m
DallasSt. Louis
DFW - STL
DFWSTL
Dallas/Fort Worth
Sat 1/18
11:00 am-11:31 pm
1 stop12h 31m
Lambert-St Louis
Mon 1/27
8:31 pm-4:42 am
1 stop8h 11m
DallasChicago
DFW - ORD
DFWORD
Dallas/Fort Worth
Thu 2/13
10:25 am-2:15 pm
1 stop3h 50m
Chicago O'Hare Intl
Mon 2/17
11:45 am-3:40 pm
1 stop3h 55m
DallasChicago
DFW - ORD
DFWORD
Dallas/Fort Worth
Sat 1/18
6:00 am-8:25 am
Nonstop2h 25m
Chicago O'Hare Intl
Sat 1/18
11:47 am-2:32 pm
Nonstop2h 45m
DallasChicago
DFW - ORD
DFWORD
Dallas/Fort Worth
Tue 1/14
5:43 pm-8:12 pm
Nonstop2h 29m
Chicago O'Hare Intl
Wed 1/15
7:20 am-10:10 am
Nonstop2h 50m
DallasSt. Louis
DFW - STL
DFWSTL
Dallas/Fort Worth
Tue 1/7
1:21 pm-3:10 pm
Nonstop1h 49m
Lambert-St Louis
Tue 1/14
3:41 pm-5:44 pm
Nonstop2h 03m
DallasChicago
DFW - MDW
DFWMDW
Dallas/Fort Worth
Wed 2/19
5:30 am-10:12 am
1 stop4h 42m
Chicago Midway
Wed 2/26
2:08 pm-10:26 pm
1 stop8h 18m
Best time to book a flight from Oklahoma to Illinois
Have a flexible travel schedule? Discover the best time to fly to Illinois from Oklahoma with our price prediction graph.
Travel insights for flights from Oklahoma to Illinois
Get recent, data-driven insights about flights from Oklahoma to Illinois including ideal travel times, pricing trends, and more.
What is the cheapest month to book a flight from Oklahoma to Illinois?
Currently, September is the cheapest month in which you can book a flight from Oklahoma to Illinois (average of $232). Flying from Oklahoma to Illinois in June is currently the most expensive (average of $308). 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 OK to IL?
Find hourly flight availability from Oklahoma 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 December 18, 2024.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Oklahoma to Illinois as you normally would.
Rainfall in Illinois by month
Plan your trip to Illinois by taking into account the average rainfall totals by month.
In terms of precipitation, rainfall in Illinois ranges from 1.7 - 4.9 inches per month. August is typically the wettest month, when rainfall can reach 4.9 in. January is typically the driest time to visit Illinois when rainfall is around 1.7 in.
Temperature in Illinois by month
Plan your trip to Illinois by taking into account the average temperature totals by month.
If weather is an important factor for your trip to Illinois, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).
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 December 18, 2024.
Read reviews from past customers who have flown American Airlines, Delta and Frontier from Oklahoma to Illinois. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Food
Crew
Overall
Boarding
Comfort
Entertainment
Reviews
We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.
Food
Crew
Overall
Boarding
Comfort
Entertainment
Reviews
We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.
Food
Crew
Overall
Boarding
Comfort
Entertainment
Reviews
We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.
Food
Crew
Overall
Boarding
Comfort
Entertainment
Reviews
We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.
Food
Crew
Overall
Boarding
Comfort
Entertainment
Reviews
We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.
Food
Crew
Overall
Boarding
Comfort
Entertainment
Reviews
We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.
Related info for your journey
Find useful and relevant information for your journey from Oklahoma to Illinois. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for Oklahoma to Illinois
See prices for flight routes from nearby airports that may be better suited for you.
Top 5 airlines flying from Oklahoma to Illinois
Discover the top 5 airlines that operate flights from Oklahoma 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 December 18, 2024.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$118 | Average$175 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$174 | Average$407 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$184 | Average$466 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$206 | Average$655 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$256 | Average$373 | FlexibilityNo cancel fee | On-time63% |