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O'Hare Intl

$63+ Cheap flights from St. Louis (STL) to O'Hare Intl (ORD)

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 12/18. Fares are subject to change and may not be available on all flights or dates of travel.
STL — ORD
Nov 26 — Dec 31
Tue 11/26
Tue 12/3
1 adult, Economy
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The best prices from Lambert-St Louis to Chicago O'Hare Intl are usually found in August or September, booked 58 days in advance, depart on a Tuesday or Thursday and return on a Saturday

Cheap flight deals from St. Louis to O'Hare Intl

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to O'Hare Intl (ORD). 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 November 21, 2024.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Popular in

March

Cheapest in

August

Round-trip from

$119
(Booking.com)

One-way from

$63
(Southern / Mokulele)
Provider with most accurate pricing for Lambert-St Louis-Chicago O'Hare Intl flight deals.
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Provider most trusted by Cheapflights users for Lambert-St Louis-Chicago O'Hare Intl flights.
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High demand for flights, 19% potential price rise
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Best time to find cheap flights, 21% potential price drop
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From Lambert-St Louis to Chicago O'Hare Intl
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One-way flight from Lambert-St Louis to Chicago O'Hare Intl
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Find flight deals from St. Louis to O'Hare Intl

Cheapest flights from St. Louis to O'Hare Intl
Explore the most affordable flight options available from St. Louis to O'Hare Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 21, 2024.

This Mytrip deal was found by Cheapflights users on 11/20. 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.
Wed 12/1112:15 pmSTL - ORD
1 stop3h 35mSouthern / Mokulele
Thu 12/128:25 amORD - STL
1 stop11h 30mSouthern / Mokulele
Deal found 11/20$116
This United Airlines deal was found by Cheapflights users on 11/20. 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.
Wed 12/185:40 pmSTL - ORD
Nonstop1h 15mUnited Airlines
Wed 12/256:20 pmORD - STL
Nonstop1h 37mUnited Airlines
Deal found 11/20$137
This American Airlines deal was found by Cheapflights users on 11/19. 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.
Sun 12/155:45 amSTL - ORD
Nonstop1h 22mAmerican Airlines
Tue 12/3110:00 amORD - STL
Nonstop1h 32mAmerican Airlines
Deal found 11/19$143
This Trip.com deal was found by Cheapflights users on 11/19. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/61:00 pmSTL - ORD
1 stop3h 32mMultiple Airlines
Sun 12/87:25 amORD - STL
1 stop24h 48mMultiple Airlines
Deal found 11/19$170
This Delta deal was found by Cheapflights users on 11/21. 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.
Mon 12/166:00 amSTL - ORD
2 stops7h 00mDelta
Mon 1/201:40 pmORD - STL
1 stop7h 16mDelta
Deal found 11/21$186
This Southwest deal was found by Cheapflights users on 11/20. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/134:15 pmSTL - ORD
1 stop5h 45mSouthwest
Sun 12/155:45 amORD - STL
2 stops6h 55mSouthwest
Deal found 11/20$261
This Mytrip deal was found by Cheapflights users on 11/20. 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.
Thu 12/124:26 pmSTL - ORD
2 stops19h 52mSpirit Airlines
Sun 12/155:00 amORD - STL
1 stop10h 21mSpirit Airlines
Deal found 11/20$311

Find flights from St. Louis to O'Hare Intl within your budget

Customize your flight search to find flights from St. Louis to O'Hare Intl 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 2,612,795 searches. Data last updated November 21, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

St. LouisChicago

STL - ORD

STLORD

Lambert-St Louis

Fri 1/31

5:00 pm-7:40 am

1 stop14h 40m

Chicago O'Hare Intl

Mon 2/17

8:20 pm-11:45 am

1 stop15h 25m

$115

St. LouisChicago

STL - ORD

STLORD

Lambert-St Louis

Wed 12/18

5:40 pm-6:55 pm

Nonstop1h 15m

Chicago O'Hare Intl

Wed 12/25

6:20 pm-7:57 pm

Nonstop1h 37m

$137

St. LouisChicago

STL - ORD

STLORD

Lambert-St Louis

Sun 12/15

5:45 am-7:07 am

Nonstop1h 22m

Chicago O'Hare Intl

Tue 12/31

10:00 am-11:32 am

Nonstop1h 32m

$143

St. LouisChicago

STL - ORD

STLORD

Lambert-St Louis

Fri 12/6

1:00 pm-4:32 pm

1 stop3h 32m

Chicago O'Hare Intl

Sun 12/8

7:25 am-8:13 am

1 stop24h 48m

$170

St. LouisChicago

STL - ORD

STLORD

Lambert-St Louis

Mon 1/13

6:00 am-12:55 pm

2 stops6h 55m

Chicago O'Hare Intl

Thu 1/16

7:05 am-11:47 am

1 stop4h 42m

$181

St. LouisChicago

STL - ORD

STLORD

Lambert-St Louis

Mon 1/6

6:50 am-6:10 pm

1 stop11h 20m

Chicago O'Hare Intl

Fri 1/10

6:15 am-4:55 pm

2 stops10h 40m

$210

St. LouisChicago

STL - ORD

STLORD

Lambert-St Louis

Thu 12/12

4:26 pm-12:18 pm

2 stops19h 52m

Chicago O'Hare Intl

Sun 12/15

5:00 am-3:21 pm

1 stop10h 21m

$311

St. LouisChicago

STL - ORD

STLORD

Lambert-St Louis

Sun 5/18

12:15 pm-3:50 pm

1 stop3h 35m

$63

St. LouisChicago

STL - ORD

STLORD

Lambert-St Louis

Sat 1/25

5:05 pm-9:52 am

1 stop16h 47m

$65

St. LouisChicago

STL - ORD

STLORD

Lambert-St Louis

Wed 1/1

6:25 am-8:00 am

Nonstop1h 35m

$69

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/21

Showing 1-10 of 16 results
1
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Compare providers for flights from St. Louis to O'Hare Intl

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from St. Louis to O'Hare Intl in November.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 stars
CheapTicketsDealPrice Accuracy3 starsTrust Score*3 stars
Kiwi.comPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on St. Louis-Chicago O'Hare Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on St. Louis-Chicago O'Hare Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from St. Louis-Chicago O'Hare Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on St. Louis-Chicago O'Hare Intl Airport flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for St. Louis-Chicago O'Hare Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from St. Louis to O'Hare Intl

Have a flexible travel schedule? Discover the best time to fly to O'Hare Intl from St. Louis 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.

Travel insights for flights from St. Louis to O'Hare Intl

Get recent, data-driven insights about flights from St. Louis to O'Hare Intl including ideal travel times, pricing trends, and more.

How far ahead should I book a flight from St. Louis to Chicago O'Hare Intl Airport?

Use this chart to determine the optimal time to book a round-trip flight from St. Louis to O'Hare Intl. Price data was last updated on November 15, 2024.

To ensure you get the cheapest price possible for a flight from St. Louis to Chicago O'Hare Intl Airport, you should look to book at least 58 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from St. Louis to Chicago O'Hare Intl Airport?

Currently, September is the cheapest month in which you can book a flight from St. Louis to Chicago O'Hare Intl Airport (average of $232). Flying from St. Louis to Chicago O'Hare Intl Airport 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 STL to ORD?

Find hourly flight availability from St. Louis to O'Hare Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 21, 2024.

It’s typically best to fly out from St. Louis to Chicago O'Hare Intl Airport in the evening. Doing so could potentially save you 24% on the flight price compared to flying at noon, which is usually more expensive.

Weekly flight availability from St. Louis to Chicago O'Hare Intl Airport

Explore weekly flight availability from St. Louis to O'Hare Intl. 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 November 21, 2024.

The most flights from STL to ORD are scheduled on a Thursday (61 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (29 on average).

Rainfall in O'Hare Intl by month

Plan your trip to O'Hare Intl by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Chicago O'Hare Intl Airport 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 Chicago O'Hare Intl Airport when rainfall is around 1.7 in.

Temperature in O'Hare Intl by month

Plan your trip to O'Hare Intl by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Chicago O'Hare Intl Airport, 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 O'Hare Intl

Get insights into the airlines that provide service to O'Hare Intl. 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 O'Hare Intl. Reviews last updated November 21, 2024.
Get a feel of what it's like to fly with United Airlines, Delta and Southern / Mokulele from St. Louis to Chicago by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
5,005 reviews

Overall

8.1

Boarding

8.2

Crew

8.7

Food

7.2

Comfort

8.1

Entertainment

7.7

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

Southwest
8.1
Very good
5,005 reviews
Southwest
8.1
Very good
5,005 reviews

Overall

8.1

Boarding

8.2

Crew

8.7

Food

7.2

Comfort

8.1

Entertainment

7.7

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

Delta
8.0
Very good
8,755 reviews
Southwest
8.1
Very good
5,005 reviews

Overall

8.1

Boarding

8.2

Crew

8.7

Food

7.2

Comfort

8.1

Entertainment

7.7

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

United Airlines
7.4
Good
9,172 reviews
Southwest
8.1
Very good
5,005 reviews

Overall

8.1

Boarding

8.2

Crew

8.7

Food

7.2

Comfort

8.1

Entertainment

7.7

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

WestJet
7.3
Good
2,811 reviews
Southwest
8.1
Very good
5,005 reviews

Overall

8.1

Boarding

8.2

Crew

8.7

Food

7.2

Comfort

8.1

Entertainment

7.7

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

American Airlines
7.2
Good
10,000 reviews
Southwest
8.1
Very good
5,005 reviews

Overall

8.1

Boarding

8.2

Crew

8.7

Food

7.2

Comfort

8.1

Entertainment

7.7

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

Related info for your journey

Find useful and relevant information for your journey from St. Louis to O'Hare Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from St. Louis to Chicago O'Hare Intl?

    If you book a flight to Chicago O'Hare Intl from St. Louis, you will be flying from Lambert-St Louis, which is the city’s only airport. Lambert-St Louis (STL) is located 12.7 mi from the center of St. Louis. There are 51 flights from Lambert-St Louis to Chicago O'Hare Intl per day from 3 different airlines.

  • What are the cheapest airlines flying from St. Louis to Chicago O'Hare Intl Airport round-trip?

    Flying on Southern / Mokulele is currently your cheapest option to Chicago O'Hare Intl Airport, with prices starting at $119. Additional round-trip tickets that might be worth considering are offered by American Airlines and Delta, with the lowest prices starting at $142 and $181, respectively. Southern / Mokulele is 55% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the cheapest airlines to fly from St. Louis to Chicago O'Hare Intl Airport one-way?

    For one-way options, check prices for Southern / Mokulele. According to our data, you can fly for as low as $63. Users have also found prices from $65 and $69 on Frontier and United Airlines, respectively.

  • What are the most reliable airlines from St. Louis to Chicago O'Hare Intl Airport?

    Before booking your flight to Chicago O'Hare Intl Airport from St. Louis, check out the most reliable airlines to get you to your destination on time: Avianca (100%), Copa Airlines (96%), Republic Airways( 95%).

  • What are the cheapest flights from St. Louis to Chicago O'Hare Intl Airport?

    The cheapest flight price from St. Louis to Chicago O'Hare Intl Airport is $131. On average you can expect to pay $898. The most popular route, (Lambert-St Louis - Chicago O'Hare Intl), can usually be booked for $108.

  • Can I find deals for flights from St. Louis to O'Hare Intl that include hotel bookings?

    Yes. In addition to deals on St. Louis to O'Hare Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from St. Louis to O'Hare Intl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from St. Louis to O'Hare Intl.

  • Can I find deals for business class flights from St. Louis to O'Hare Intl?

    Yes. Cheapflights offers flight deals from St. Louis to O'Hare Intl 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 St. Louis to Chicago O'Hare Intl Airport?

    Currently, September is the cheapest month in which you can book a flight from St. Louis to Chicago O'Hare Intl Airport (average of $232). Flying from St. Louis to Chicago O'Hare Intl Airport 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.

See more FAQs

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Top 3 airlines flying from St. Louis to O'Hare Intl

Discover the top 3 airlines that operate flights from St. Louis to O'Hare Intl. 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 2,612,795 searches. Data last updated November 21, 2024.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$115Average$259FlexibilityNo cancel feeOn-time71%
Southern / MokuleleCheapest$118Average$181FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$119Average$304FlexibilityNo cancel feeOn-time69%
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