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Journey information
Overview: Chicago, IL to St. Louis, MO flight
USAUSA
Flights from Chicago, IL to St. Louis, MO depart on average 8 times per day, taking around 1h 19m. Cheap flight tickets for this journey start at $358 (€288) but you can travel from only $44 (€35) by train.
There are 4 flights per day. The earliest flight runs at 00:15, the last at 23:55. The fastest flight covers the 260 miles (419 km) distance in 1h 22m. October is the cheapest month to fly.
Fares are the lowest economy prices found on Omio. Early booking often means lower prices. Prices change daily and are subject to availability. Discount cards, coach trips, and booking fees are not included.
Price information
Cheapest alternative travel mode
Train from $44 (€35)
Distance 260 miles (419 km) |
Average flight duration 1h 19m |
Cheapest ticket price $358 (€288) |
Flights per day 8 |
Direct flights 4 |
Fastest flight 1h 22m |
Cheapest month to travel October |
First flight 00:15 |
Last flight 23:55 |
Fares are the lowest economy prices found on Omio. Early booking often means lower prices. Prices change daily and are subject to availability. Discount cards, coach trips, and booking fees are not included.
Price information
Cheapest alternative travel mode
Train from $44 (€35)
The cheapest and fastest flights from Chicago, IL to St. Louis, MO
Showing times and prices for Dec 09
Cheapest price
€339
Average price
€596
Fastest journey
1 h 22 m
Average duration
1 h 25 m
Flights per day
41
Distance
419 km
Cheap tickets
The best way to find a cheap flight ticket from Chicago, IL to St. Louis, MO is to book your journey as far in advance as possible and to avoid traveling at rush hour.
The average ticket from Chicago, IL to St. Louis, MO will cost around €596 if you buy it on the day, but the cheapest tickets can be found for only €339.
Fast flights
Of the 41 flights that leave Chicago, IL for St. Louis, MO onTue, Dec 09, 12 travel direct so it’s quite easy to avoid journeys where you’ll have to change along the way.
On Tue, Dec 09 the direct flights cover the 419 km distance in an average of 1 h 25 m but if you time it right, some flights will get you there in just 1 h 22 m .
On Tue, Dec 09 the longest flights will take 1 h 27 m and usually involve a change or two along the way, but you might be able to save a few pennies if you’re on a budget.
UA461309:30AM1h31
O'Hare International Airport11:01AMSt. Louis Lambert International Airport
€3391One-way
0 transfers
UA535710:50AM1h25
O'Hare International Airport12:15PMSt. Louis Lambert International Airport
€3391One-way
0 transfers
AA635902:04PM1h33
O'Hare International Airport03:37PMSt. Louis Lambert International Airport
€3391One-way
0 transfers
UA261802:14PM1h26
O'Hare International Airport03:40PMSt. Louis Lambert International Airport
€3391One-way
0 transfers
UA418605:50PM1h27
O'Hare International Airport07:17PMSt. Louis Lambert International Airport
€3391One-way
0 transfers
UA448709:23PM1h22
O'Hare International Airport10:45PMSt. Louis Lambert International Airport
€3391One-way
0 transfers
UA535710:50AM1h25
O'Hare International Airport12:15PMSt. Louis Lambert International Airport
€3391One-way
0 transfers
UA349501:00PM1h25
O'Hare International Airport02:25PMSt. Louis Lambert International Airport
€3391One-way
0 transfers
UA261802:14PM1h26
O'Hare International Airport03:40PMSt. Louis Lambert International Airport
€3391One-way
0 transfers
UA418605:50PM1h27
O'Hare International Airport07:17PMSt. Louis Lambert International Airport
€3391One-way
0 transfers
Travel Information
Compare train, bus, and flight for Chicago, IL to St. Louis, MO
Omio recommends booking the train as it is the most popular option from Chicago, IL to St. Louis, MO among Omio's users. If you are prioritising price take the bus with prices starting from €40. For those with little time consider booking a flight which can get you there in 1h 19m. In case you are seeking to minimise your carbon footprint the train is your best bet as it emits only 0.1 - 0.4kg. The ticket price range depends on the travel mode: a bus costs an average of €40, and a flight costs an average of €288.
Distance: 260 miles (419 km)
Compare flight with
| Flight | Most popular Train | Bus |
|---|---|---|
€301 Average price | €58 Average price | €51 Average price Cheapest |
4h 19m Average total duration Fastest 1h 19m Onboard + 3h 0m Additional time* | 5h 29m Average total duration 4h 59m Onboard + 30m Additional time* | 6h 48m Average total duration 6h 18m Onboard + 30m Additional time* |
1.3 - 2.5kg CO2 emissions | 0.1 - 0.4kg CO2 emissions Lowest | 0.4 - 1.0kg CO2 emissions |
 Most popular airline |  Most popular train company |  Most popular bus company |
Direct Options | Direct Options | Direct Options |
Additional time: Average total travel duration to departure point, security checks and transfers.
Live departures
Chicago, IL to St. Louis, MO flight times
The table below shows live departures for Chicago, IL to St. Louis, MO flights for today, Monday, December 8. You can also manually refresh the results below to see updated flight journeys.
Last updated at 9:23 AM
| Provider | Departs | Duration | Arrives | Transfers | Tickets |
|---|---|---|---|---|---|
| AA6248 | 12:41 PM O'Hare International Airport | 1h27 | 2:08 PM St. Louis Lambert International Airport | 0 transfersDirect | |
| UA538 · UA1422 | 2:45 PM O'Hare International Airport | 12h12 | 2:57 AM St. Louis Lambert International Airport | 1 transfer | |
| UA2225 · UA2226 | 2:49 PM O'Hare International Airport | 13h09 | 3:58 AM St. Louis Lambert International Airport | 1 transfer | |
| UA3598 | 4:50 PM O'Hare International Airport | 1h25 | 6:15 PM St. Louis Lambert International Airport | 0 transfersDirect | |
| UA399 · UA1850 · UA3468 | 5:00 PM O'Hare International Airport | 12h42 | 5:42 AM St. Louis Lambert International Airport | 2 transfers | |
| AA6332 | 6:04 PM O'Hare International Airport | 1h25 | 7:29 PM St. Louis Lambert International Airport | 0 transfersDirect | |
| UA1484 · UA1422 | 7:00 PM O'Hare International Airport | 7h57 | 2:57 AM St. Louis Lambert International Airport | 1 transfer | |
| UA2411 | 7:00 PM O'Hare International Airport | 1h23 | 8:23 PM St. Louis Lambert International Airport | 0 transfersDirect | |
 AA3764 | 7:22 PM O'Hare International Airport | 1h28 | 8:50 PM St. Louis Lambert International Airport | 0 transfersDirect | |
| UA684 · UA3468 | 7:36 PM O'Hare International Airport | 10h06 | 5:42 AM St. Louis Lambert International Airport | 1 transfer | |
| UA2618 | 8:14 PM O'Hare International Airport | 1h26 | 9:40 PM St. Louis Lambert International Airport | 0 transfersDirect | |
| UA2004 · UA3468 | 8:24 PM O'Hare International Airport | 9h18 | 5:42 AM St. Louis Lambert International Airport | 1 transfer | |
| UA587 · UA4427 | 8:39 PM O'Hare International Airport | 19h28 | 4:07 PM St. Louis Lambert International Airport | 1 transfer | |
 AA4595 | 8:48 PM O'Hare International Airport | 1h31 | 10:19 PM St. Louis Lambert International Airport | 0 transfersDirect | |
| UA2231 · UA3468 | 9:35 PM O'Hare International Airport | 8h07 | 5:42 AM St. Louis Lambert International Airport | 1 transfer | |
| UA3525 | 9:35 PM O'Hare International Airport | 1h28 | 11:03 PM St. Louis Lambert International Airport | 0 transfersDirect | |
| UA2095 · UA2226 | 9:53 PM O'Hare International Airport | 6h05 | 3:58 AM St. Louis Lambert International Airport | 1 transfer | |
| UA485 · UA3468 | 10:25 PM O'Hare International Airport | 7h17 | 5:42 AM St. Louis Lambert International Airport | 1 transfer | |
| UA2605 · UA3468 | 11:25 PM O'Hare International Airport | 6h17 | 5:42 AM St. Louis Lambert International Airport | 1 transfer | |
| UA4186 | 11:50 PM O'Hare International Airport | 1h27 | 1:17 AM St. Louis Lambert International Airport | 0 transfersDirect | |
| UA2677 · UA4427 | 12:15 AM O'Hare International Airport | 15h52 | 4:07 PM St. Louis Lambert International Airport | 1 transfer | |
| UA4185 | 2:10 AM O'Hare International Airport | 1h30 | 3:40 AM St. Louis Lambert International Airport | 0 transfersDirect | |
| UA1639 · UA4527 | 3:05 AM O'Hare International Airport | 22h08 | 1:13 AM St. Louis Lambert International Airport | 1 transfer | |
| UA1639 · UA4427 | 3:05 AM O'Hare International Airport | 13h02 | 4:07 PM St. Louis Lambert International Airport | 1 transfer | |
| UA2665 · UA6214 | 3:08 AM O'Hare International Airport | 12h56 | 4:04 PM St. Louis Lambert International Airport | 1 transfer | |
| UA4487 | 3:23 AM O'Hare International Airport | 1h22 | 4:45 AM St. Louis Lambert International Airport | 0 transfersDirect | |
| AA4576 | 4:15 AM O'Hare International Airport | 1h23 | 5:38 AM St. Louis Lambert International Airport | 0 transfersDirect | |
This is the last flight of the day. | |||||
Find all the dates and times for this journey
How far in advance should I book flight tickets from Chicago, IL to St. Louis, MO?
The best time to book your flight from Chicago, IL to St. Louis, MO is 49 days before departure. See how prices for flights change on the Chicago, IL to St. Louis, MO route.
Prices are for one-way tickets for one passenger from Chicago, IL to St. Louis, MO per month. Insights are sourced from fares found by Omio users in the last 12 months. Current prices may differ as prices vary depending on the time of day, class or how far in advance you book your flight from Chicago, IL to St. Louis, MO.
Flights
from €87Trains
from €36Buses
from €41Compare prices and tickets Chicago, IL to St. Louis, MO by train, bus, or flight
Compare train, bus, and flight prices over the next three weeks. See the best deals at a glance, find the lowest fares, and choose the option that fits your budget.
Tue
Dec 09
Dec 09
Wed
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Airlines: American Airlines, Republic Airlines, United, Sky West Airlines from Chicago, IL to St. Louis, MOFind the best flights between Chicago, IL to St. Louis, MO with Omio's travel partners American Airlines, Republic Airlines, United, Sky West Airlines from $44 (€35). We can find you the best deals, schedules and tickets when comparing and booking the best trip.
United
About
United Airlines is one of the USA’s leading carriers, operating both domestic and international routes. For your next trip, you can choose from Economy, Premium Economy, and Business Class fares.
Luggage & cancellation policy
Average Duration
1h 27m
Cheapest Price
$382 (€308)
Luggage included
Carry-on baggage allowance is 7kg total (2 pieces max. ) for both Choice and Flex fares on United Airlines and Virgin Australia flights.
Additional luggage
Excess baggage fees apply for additional checked luggage beyond the standard allowance.
Luggage storage
Both airlines provide checked baggage services for storing luggage during flights.
Cancellation Policy
Cancellation fees apply per person, per booking, with specific fees for different fare types.
Refund
Not applicable to flights; however, full refunds are available if flights are canceled by the airline.
Pregnant on board
Pregnant passengers are permitted to travel, with specific guidelines and medical certificates required after a certain gestational period.
Unaccompagned minor
Unaccompanied minors are permitted to travel, with specific age restrictions and services provided.
Amenities on board the airplane
Wifi
Food sold onboard
Meals and snacks are included on international flights operated by United Airlines and Virgin Australia.
Seat reservation
Seat selection may incur additional fees, depending on the fare type and airline.
Toilets
USB plugs
Accessibility
United Airlines and Virgin Australia offer services to and within Australia, providing accessible travel options for passengers with mobility needs.
Bikes
Both airlines permit bicycles onboard, with specific guidelines and fees.
Pets
United Airlines and Virgin Australia allow pets onboard, subject to specific policies and fees.
American Airlines
About
American Airlines is one of the largest airlines in the world, connecting travelers to hundreds of destinations across the United States, Latin America, Europe, Asia, and beyond. Operating from major hubs such as Dallas/Fort Worth, Miami, and Charlotte, American offers a wide range of travel options. Passengers can choose from Economy with affordable fares, Premium Economy with extra space, or Business and First Class featuring flat-bed seats, premium dining, and lounge access. With a modern fleet and membership in the oneworld alliance, American Airlines combines global reach with comfort and reliability.
Luggage & cancellation policy
Average Duration
1h 26m
Cheapest Price
$358 (€288)
Luggage included
1 carry-on bag (22 x 14 x 9 inches) and 1 personal item (18 x 14 x 8 inches) included in most fares
Additional luggage
Checked bags fees vary by route. First checked bag typically $30, second $40 on domestic flights
Cancellation Policy
Basic Economy tickets cannot be changed or refunded. Other fares allow changes with fee, refunds subject to fare rules.
Pregnant on board
Passengers can fly up to 36 weeks for single pregnancies, 32 weeks for multiple pregnancies. Medical certificate required within 7 days of departure if within 4 weeks of due date.
Unaccompagned minor
Children ages 5-14 can travel alone using American Airlines Unaccompanied Minor Service. Service fee is $150 each way.
Amenities on board the airplane
Wifi
Food sold onboard
USB plugs
Accessibility
American Airlines provides wheelchair assistance and special services for passengers with disabilities. Assistance must be requested at least 48 hours before departure.
Pets
Small dogs and cats allowed in cabin for $125 fee. Must be in approved carrier under seat. Service animals allowed.
Sky West Airlines
About
SkyWest Airlines is a major North American regional airline headquartered in St. George, Utah. It operates flights for larger carriers such as Alaska Airlines (as Alaska SkyWest), American Airlines (as American Eagle), Delta Air Lines (as Delta Connection), and United Airlines (as United Express). SkyWest is the largest regional airline in North America by fleet size, passengers carried, and destinations served. The airline connects passengers to over 250 destinations across the United States, Canada, and Mexico, primarily linking smaller airports to major airline hubs. SkyWest's fleet consists of regional jets, including the Bombardier CRJ series and Embraer 175 aircraft.
Luggage & cancellation policy
Luggage included
One carry-on bag and one personal item are allowed for free.
Additional luggage
Additional luggage can be purchased, and fees apply for excess, oversized, or overweight baggage.
Cancellation Policy
If canceled within 24 hours of purchase, a full refund is possible, provided the departure is at least 7 days away; after 24 hours, fees range from $100 to $500.
Refund
If SkyWest Airlines cancels a flight, passengers are eligible for a full refund.
Pregnant on board
Being pregnant on board is allowed, but specific policies may depend on the partner airline.
Unaccompagned minor
Children aged 5-14 can travel alone using the unaccompanied minor service, which includes airport escort and supervision.
Amenities on board the airplane
Seat reservation
Toilets
Accessibility
SkyWest Airlines complies with all provisions of the Air Carrier Access Act and accommodates customers with special needs.
Bikes
Bicycles can be checked in but may incur additional fees and must be properly packed.
Pets
Small pets like cats and dogs are allowed in the cabin for a fee, with restrictions on pet and carrier size.
Republic Airlines
About
Republic Airways is a major regional airline in the United States, operating as a subsidiary of Republic Airways Holdings. It provides scheduled passenger service for American Airlines (as American Eagle), Delta Air Lines (as Delta Connection), and United Airlines (as United Express) using a fleet of Embraer 170 and 175 regional jets. Headquartered in Indianapolis, Indiana, Republic Airways operates over 900 daily flights to more than 80 cities across the U.S. and Canada. The company is known for its large fleet of Embraer E-Jets and its state-of-the-art training facilities. In April 2025, Republic Airways Holdings announced its acquisition of Mesa Air Group, which is expected to create the second-largest regional carrier in the U.S.
Luggage & cancellation policy
Average Duration
1h 20m
Cheapest Price
$309 (€249)
Republic Airlines frequency
2 a day
Luggage included
One carry-on bag (24 x 16 x 10) and one personal item
Additional luggage
Checked bags for a fee
Cancellation Policy
Tickets are non-refundable but may be cancelled for future flight credit minus applicable fees
Pregnant on board
Passengers can fly up to the end of their 36th week for single pregnancies and the end of their 32nd week for multiple pregnancies
Unaccompagned minor
Unaccompanied minor service is available for children ages 5-14. Must be booked directly with Republic Airlines
Amenities on board the airplane
USB plugs
Accessibility
Republic Airlines offers assistance for passengers with reduced mobility, including wheelchair services and priority boarding. Passengers are advised to request these services in advance to ensure availability and proper arrangements.
FAQs: Chicago, IL to St. Louis, MO Flight
Find answers to the most common questions about traveling from Chicago, IL to St. Louis, MO by flight. From journey times and ticket prices to direct connections, first and last departures, and even whether the route is scenic, our FAQs cover everything you need to plan your trip. Whether you’re looking for the fastest flight, the cheapest option, or tips for making the most of your visit at St. Louis, MO, this guide helps you travel smarter and with confidence.
Cheap plane tickets from Chicago, IL to St. Louis, MO can start from as little as $68 (€55) when you book in advance. The average flight ticket price for Chicago, IL to St. Louis, MO is $254 (€205); however, prices vary depending on the time of day and class and they tend to be more expensive on the day.
On average the Chicago, IL to St. Louis, MO flight time is 1 h 10 min covering the 259 mile (418 km) long trip, but the journey time can vary depending on specific dates or if traveling on weekends and holidays.
The earliest flight from Chicago, IL to St. Louis, MO leaves at 5: 30AM. Plan your trip with the Journey Planner from Omio.
The latest flight from Chicago, IL to St. Louis, MO leaves at 10: 05PM.
Yes, it is possible to travel from Chicago, IL to St. Louis, MO without having to change trains with United. There are 3 direct flights from Chicago, IL to St. Louis, MO each day. There may be fewer direct services available on weekends or holidays.
For the trip from Chicago, IL to St. Louis, MO you can take a flight with American Airlines, Republic Airlines or United. Be sure to check out all possible airlines that offer services from Chicago, IL to St. Louis, MO on Omio to compare what amenities they may have.
The cheapest month for a flight from Chicago, IL to St. Louis, MO is October.
You have options as you can travel from Chicago, IL to St. Louis, MO 3 different ways: train, bus or flight.
Since neither Chicago, IL nor St. Louis, MO are in the Schengen Area, passport requirements depend on the specific immigration rules of USA and USA. Entry and visa requirements can be subject to change. For the latest information, check with your destination's embassy or consulate.
The best events to attend in St. Louis, MO include:
- St. Louis Mardi Gras, a vibrant celebration featuring parades, live music, and festive activities in the Soulard neighborhood
- St. Louis Art Fair, an annual event showcasing local and national artists with art exhibits, live performances, and culinary delights
- Fair St. Louis, a multi-day Independence Day festival with fireworks, concerts, and family-friendly activities along the Gateway Arch.
The best holidays to experience in St. Louis, MO include:
- Independence Day, vibrant fireworks and festive celebrations throughout the city
- Labor Day, pleasant weather and various outdoor activities
- Thanksgiving, a time for family gatherings with a charming autumn atmosphere.
The best seasons to visit St. Louis, MO are Spring or Fall. The best weather to explore St. Louis, MO is during April-May or September-October.
For domestic flights we recommend to arrive 1.5 to 2 hours before departure. Please check the website of your departure airport if in doubt. Some airports may offer booking time slots for security checks or offer additional information on when to get there based on time of day.
Most airlines permit carry-on bags that fit within specific dimensions (e. G. 22 x 14 x 9 inches or 56 x 36 x 23 cm), including handles and wheels. Bags must fit in the overhead bin or under the seat in front of you.
Many airlines impose weight limits, commonly ranging between 7 kg (15 lbs) and 12 kg (26 lbs).
Typically, passengers are allowed one carry-on bag and one personal item (for example a purse, laptop bag, or backpack). Personal items must fit under the seat in front of you.
Budget Airlines (like Ryanair or Wizz Air) have stricter size and weight limits, often requiring fees for larger carry-ons. Full-Service Airlines have more lenient policies, sometimes including more spacious dimensions or higher weight limits depending on your ticket class.
Typically, passengers are allowed one carry-on bag and one personal item (for example a purse, laptop bag, or backpack). Personal items must fit under the seat in front of you.
Budget Airlines (like Ryanair or Wizz Air) have stricter size and weight limits, often requiring fees for larger carry-ons. Full-Service Airlines have more lenient policies, sometimes including more spacious dimensions or higher weight limits depending on your ticket class.
The list of items prohibited on an airplane varies by country and airline, but in general, the following items are not allowed in carry-on or checked baggage: Weapons and self-defence items, sharp objects, flammable materials, explosives, toxic substances, or liquids over 100ml (except for medications and baby essentials). In checked baggage, firearms (without authorization), explosives, large lithium batteries, and hazardous chemicals are prohibited. Electronic cigarettes must be in carry-on bags, while alcohol and dry ice have restrictions. Always check with your airline for specific regulations.
popular airports
Popular airports from Chicago, IL to St. Louis, MO
Chicago
St. Louis
The major airport for departures in Chicago is O'Hare International Airport. Find all the information you need to know about services, amenities and connections at O'Hare International Airport for your trip from Chicago to St. Louis.
Amenities at airport
Wifi
Shopping
Parking
Dining
ATM
Taxis
Accessibility
WC
Hotel
Shower
Lounge
Lost and Found Office
Car Rentalinformation
Distance to city center
3 km
Car connection
I-190, Exit 1Wifi
- Free Wi-Fi available throughout the airport.
Shopping
- Shops are located in all terminals, including duty-free and brands like Hudson and MAC Cosmetics.
Parking
- Parking available with options including hourly, daily, and economy lots, approximately 2.85€ ($3) per hour.
Dining
- Restaurants are located in all terminals, offering a variety of cuisines including American and intertiol. Top options include Tortas Frontera and Publican Tavern.
Taxis
- Available outside the terminal.
Accessibility
- Elevators, ramps, toilets
WC
- Available throughout the airport.
Hotel
- Hotels such as Hilton Chicago O'Hare are located on airport grounds, with others like the Hyatt Regency nearby.
Shower
- Showers are available in some lounges, such as the United Club, but access may require a fee or membership.
Lounge
- Lounges available, including United Club and American Airlines Admirals Club.
Lost and Found Office
- Lost and Found located in terminal 1, near the baggage claim area.
Car Rental
- Car rental services are available at the Multi-Modal Facility, with companies like Hertz and Avis.
Public transit options for O'Hare International Airport
- CTA Blue Line, O'Hare Station, 45 minutes to city center
The major airport for arrivals in St. Louis is St. Louis Lambert International Airport. Find all the information you need to know about services, amenities and connections at St. Louis Lambert International Airport for your journey to St. Louis from Chicago.
Amenities at airport
WifiShoppingParkingDiningATMTaxisAccessibilityWCHotelShowerLoungeLost and Found OfficeCar Rentalinformation
Distance to city center
2 kmCar connection
I-70, Exit 236Wifi
- Free Wi-Fi available throughout the airport.
Shopping
- Shops in both terminals, including Hudson News and Tech on the Go.
Parking
- Parking available with short-term and long-term options, approximately 1.42€ ($1.50) per hour.
Dining
- Restaurants in both terminals, including fast food and sit-down options like Starbucks and Chili's
Taxis
- Available outside the terminal.
Accessibility
- Elevators, ramps
WC
- Available throughout both terminals.
Hotel
- Hotels nearby, such as Marriott St. Louis Airport within walking distance.
Shower
- Showers available in some lounges, access may require lounge fee.
Lounge
- Lounges available, including American Airlines Admirals Club.
Lost and Found Office
- Lost and Found located in terminal 1, contact airport for details.
Car Rental
- Car rental services available, including Hertz and Enterprise in terminal 1
Public transit options for St. Louis Lambert International Airport
- MetroLink Red Line, Lambert Airport terminal 1 & 2 stations, 35 minutes
More options for your journey from Chicago, IL to St. Louis, MO
Here are some other resources that might have the information you need
Most popular flights to and from St. Louis, MO and Chicago, IL
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