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ORD - STL

Find cheap flights from Chicago to St. Louis

1 adult
0 bags
Fri 31/5
Fri 7/6

Search hundreds of travel sites at once for deals on flights to St. Louis

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Chicago to St. Louis, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Chicago to St. Louis, as well as popular online travel agencies
In the last 7 days, travellers have searched 43,740,974 times on KAYAK, and here's why:

Save 28% or moreCompare multiple travel sites with one search.

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Flights from Chicago to St. Louis - Travel Insights & Trends

Get data-powered insights and trends into flights from Chicago to St. Louis to help you find the cheapest flights, the best time to fly and much more.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Chicago O'Hare Intl Airport to St. Louis, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights from Chicago O'Hare Intl Airport to St. Louis is September, where tickets cost £179 on average. On the other hand, the most expensive months are March and June, where the average cost of tickets is £274 and £270 respectively.

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

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from Chicago O'Hare Intl Airport to St. Louis, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price on the flight from Chicago O'Hare Intl Airport to St. Louis, you should book around 1 day before departure. For the absolute cheapest price, our data suggests you should book 38 days before departure.

Which airlines fly direct between Chicago O'Hare Intl Airport and St. Louis?

Airline and price data is aggregated from results in KAYAK’s search results from the last 2 weeks for flights from Chicago O'Hare Intl Airport to St. Louis.
There are 2 airlines that fly direct from Chicago O'Hare Intl Airport to St. Louis. They are American Airlines and United Airlines. The cheapest airline for this route is United Airlines, with the best one-way deal found costing £234. On average, the best prices for this route can be found at United Airlines.

How many flights are there between Chicago O'Hare Intl Airport and St. Louis per day?

Each day, there are between 14 and 16 nonstop flights that take off from Chicago O'Hare Intl Airport and land in St. Louis, with an average flight time of 1h 22m. The most common departure time is 15:00 and most flights take off in the morning. Each week, there are 106 flights. The most frequent day of departure is Wednesday, when 15% of all weekly flights depart. The fewest flights depart on a Sunday.

Which cabin class options are there for flights between Chicago O'Hare Intl Airport and St. Louis?

The average price of flights for each cabin class for the route found by users searching on KAYAK over the last 2 weeks.
There is only one cabin class option available for the route, which is Economy. Perform a search on KAYAK to find the latest prices and availability for all cabin fares, which differ across airlines.

What’s the earliest departure time from Chicago to St. Louis?

Early birds can take the earliest flight from Chicago O'Hare Intl Airport at 07:59 and will be landing in St. Louis at 09:19.

What’s the latest departure time from Chicago to St. Louis?

If you prefer to fly at night, the latest flight from Chicago O'Hare Intl Airport to St. Louis jets off at 20:46 and lands at 22:03.

Good to know - Cheap tickets from Chicago to St. Louis

Low season

January

High season

February
Best time to beat the crowds (10% less expensive on average)
Most popular time to fly (2% more expensive on average)

When to book flights from Chicago to St. Louis

Are your dates flexible? Find out the best times to travel from Chicago to St. Louis based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Chicago to St. Louis flights

  • How can I travel sustainably from Chicago O'Hare International Airport to St. Louis?

    If you want to travel in an eco-friendly way, consider booking your flight with carriers serious about flight sustainability. Delta is vocal about its sustainability pledge to reduce its carbon emissions significantly. The airline is investing in offsetting its carbon, implementing clean air technology, and eliminating single-use plastic items. Keeping sustainable fleets is among its commendable initiatives.

  • How can I catch the first flight from Chicago O'Hare International Airport to St. Louis?

    The most convenient and sustainable way to catch your early morning flight, especially if you live far from ORD, is by booking a nearby hotel. Commuting in the morning amid traffic snarl-ups is worth avoiding. O’Hare Inn & Suites, Red Roof Inn Chicago, and Wyndham Chicago O’Hare offer great airport accessibility.

  • Do flights from Chicago O'Hare International Airport to St. Louis consider persons with limited mobility?

    Passengers with limited mobility are considered on this route. For instance, if you book your ticket with Spirit Airlines, remember to make a special arrangement request. The carrier is dedicated to providing accessible, seamless, and comfortable air trips to all its travelers, regardless of their circumstances. The airline has a competent staff to offer meet-and-assist services, wheelchair support, and in-flight services.

  • What are the best transportation options from Lambert-St Louis Airport to the city center?

    Multiple options exist when connecting from Lambert-St Louis (STL) to the city center. A train operates the route from the airport to Stadium Metrolink Station, taking about 35 minutes. Line Bus also operates the route, arriving downtown St. Louis in about 1 hour and 15 minutes. Taxis take about 20 minutes to arrive at the city center.

  • Which airlines offer Wi-Fi service onboard planes from Chicago to St. Louis?

    American Airlines, Delta, JetBlue, and Alaska Airlines offer inflight Wi-Fi service on the Chicago to St. Louis flight route.

  • Which aircraft models fly most regularly from Chicago to St. Louis?

    The Airbus A319 is the aircraft model that flies most regularly on the Chicago to St. Louis flight route.

  • Which airline alliances offer flights from Chicago to St. Louis?

    oneworld, and Star Alliance are the airline alliances operating flights between Chicago and St. Louis, with oneworld being the most commonly used for this route.

  • On which days can I fly direct from Chicago to St. Louis?

    There are direct flights from Chicago to St. Louis on a daily basis.

  • How does KAYAK find such low prices on flights from Chicago to St. Louis?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Chicago to St. Louis.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Chicago to St. Louis?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to St. Louis from Chicago is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Chicago to St. Louis?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to St. Louis with an airline and back to Chicago with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Chicago to St. Louis?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to St. Louis from Chicago up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top tips for finding a cheap flight from Chicago to St. Louis

  • Chicago O'Hare International Airport (ORD) is a central hub for air travel, and your flight will fly into Lambert-St. Louis Airport (STL). The airlines to expect on the route include Delta, Spirit Airlines, United Airlines, American Airlines, and Southern/Mokulele. These airlines operate various flight options.
  • When traveling from Chicago O'Hare International Airport (ORD) to St. Louis, the most popular locations for stopover flights include Quincy, Burlington, Detroit, Minneapolis, and Charlotte. The layover cities on this route vary depending on your airline and specific flight schedules.
  • Multiple airlines from Chicago O'Hare International Airport (ORD) to St Louis offer Business Class flights with common amenities and services, including comfortable seating, unlimited in-flight entertainment, improved dining options, access to selected lounges, and extra legroom.
  • Since STL is a hub for American Airlines, consider traveling with the airline to enjoy unlimited lounge amenities when you land. American Airlines Admirals Club treats its Business Class and First Class passengers to unlimited entertainment, shower options, complimentary snacks, food, and drinks. Digital magazines and business centers are also available at your convenience.
  • After landing at STL, you can visit several nearby cities and towns. The airport allows you to visit Saint Ann, Edmundson, Hazelwood, Bridgeton Terrace, Berkeley, Woodson Terrace, Schuermann Heights, and Robertson. The airport has an incredible transport network to help you get to these places by bus, taxi, or rental car.
See more tips

Prefer to fly direct from Chicago to St. Louis?

Find which airlines fly direct from O'Hare Intl to Lambert-St Louis, which days they fly and book direct flights.

Direct departures

Chicago O'Hare Intl to Lambert-St Louis

Monday

ANA, Aer Lingus, Air Canada, +14 more

ANA, Aer Lingus, +15 more

Tuesday

ANA, Aer Lingus, Air Canada, +16 more

ANA, Aer Lingus, +17 more

Wednesday

ANA, Aer Lingus, Air Canada, +17 more

ANA, Aer Lingus, +18 more

Thursday

ANA, Aer Lingus, Air Canada, +16 more

ANA, Aer Lingus, +17 more

Friday

ANA, Aer Lingus, Air Canada, +18 more

ANA, Aer Lingus, +19 more

Saturday

ANA, Aer Lingus, Air Canada, +17 more

ANA, Aer Lingus, +18 more

Sunday

ANA, Aer Lingus, Air Canada, +18 more

ANA, Aer Lingus, +19 more

See more direct flights

Direct returns

Lambert-St Louis to Chicago O'Hare Intl

Monday

ANA, Aer Lingus, Air Canada, +14 more

ANA, Aer Lingus, +15 more

Tuesday

ANA, Aer Lingus, Air Canada, +16 more

ANA, Aer Lingus, +17 more

Wednesday

ANA, Aer Lingus, Air Canada, +17 more

ANA, Aer Lingus, +18 more

Thursday

ANA, Aer Lingus, Air Canada, +16 more

ANA, Aer Lingus, +17 more

Friday

ANA, Aer Lingus, Air Canada, +18 more

ANA, Aer Lingus, +19 more

Saturday

ANA, Aer Lingus, Air Canada, +17 more

ANA, Aer Lingus, +18 more

Sunday

ANA, Aer Lingus, Air Canada, +18 more

ANA, Aer Lingus, +19 more

See more direct flights
See more direct flights

Top airline flying from Chicago to St. Louis

 
See real verified KAYAK customer reviews for airlines flying from Chicago to St. Louis. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Chicago to St. Louis? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 11159 reviews
8.1Crew
7.2Comfort
7.1Entertainment
6.7Food
7.7Boarding
Airline reviews

Great! The plane was decently sized and comfortable. The staff was nice and there was great in flight entertainment

8.0 ExcellentAnonymous, Apr 2024ORD - PHX
Read more about United Airlines reviews

Great! The plane was decently sized and comfortable. The staff was nice and there was great in flight entertainment

Last minute gate change nearly caused us to miss our flight. Change was not announced or displayed in the main board at the old gate. Terrible communication. When we landed we had to wait 20 minutes because there was another plane at the assigned gate. Not the crew’s fault, but adding 20 minutes to a 45 minute flight sucked.

delay several times and wait extra long to board. no entertainment service because there are problem for some rows. always encounter some delays for the last flight of the day.

The flight experience was very good! Especially the United Club!

I was not able to buy food in the flight. They refer to include your Credit card in the APP, and if you are not from USA (i have a credit card form Canada) it is not possible

The flight from Ottawa to Chicago took a lot longer due to DC in Ottawa. We got to Chicago and went to our gate to catch our flight. We only had nine minutes I found that very stressful.

Good boarding. Crew started quick with drinks and food. They came around several times for trash which I really liked. Other than turbulence due to storms in the area, flight was great.

The control panel for the seat back screen did not work at all after takeoff.

Plane was so old it had cigarette butt trays in the seat

Everything was good, hard to really comfortable on a flight that long.

Book cheap flights from Chicago to St. Louis

One-way flight deals

directAmerican Airlines
1h 20mORD-STL
directQatar Airways
1h 26mORD-STL
directAir Canada
1h 23mORD-STL
directJapan Airlines
1h 14mORD-STL
directAer Lingus
1h 14mORD-STL
directAustrian Airlines
1h 29mORD-STL
directEmirates
1h 27mORD-STL
directCopa Airlines
1h 29mORD-STL
directAir New Zealand
1h 23mORD-STL
directUnited Airlines
1h 22mORD-STL
directAlaska Airlines
1h 20mORD-STL
directAvianca
1h 27mORD-STL
directCathay Pacific
1h 26mORD-STL
directTurkish Airlines
1h 20mORD-STL
directFinnair
1h 20mORD-STL
directRoyal Jordanian
1h 20mORD-STL
directIberia
1h 14mORD-STL
directANA
1h 23mORD-STL
directLufthansa
1h 21mORD-STL
directBritish Airways
1h 14mORD-STL
directGulf Air
1h 16mORD-STL

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Chicago - St. Louis Flights

Departure:

Chicago (ORD)United States

Destination:

St. Louis (STL)United States

Return flight deals:

St. Louis - Chicago

Cabin classes:

£309

Browse origins:

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  • Chicago O'Hare Airport

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