Latest deals
Insights
FAQs
Reviews

Cheap flights from St. Louis to Chicago from $50

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Chicago departing on 6/20. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags
From?
To?
Sun 6/2
Sun 6/9

Deals available from 900+ travel sites.

"This year, momondo is the #1 place for airfares on the internet."
Save money when you book flights with momondo
Big names and deals
Big names and deals
Search 100s of travel sites to compare prices.
Filter for what you want
Filter for what you want
Free Wi-Fi? Stopover? Instantly customize your results.
Trusted and free
Trusted and free
We’re completely free to use - no hidden charges or fees.
Price Alerts
Price Alerts
Not ready to book? Create a price alert to track prices.

Easily compare round-trip flights from St. Louis to Chicago

Below you can see the best fares for your round-trip flight route over the next six months. All fares were found on momondo this week. Browse the quickest and cheapest flights from St. Louis to Chicago by changing tabs
American Airlines
Jun 26
STL6:00 amLambert-St Louis
1h 22m
ORD7:22 amChicago O'Hare Intl
Jun 26
ORD4:05 pmChicago O'Hare Intl
1h 13m
STL5:18 pmLambert-St Louis
Southern / Mokulele
Aug 24
STL12:00 pmLambert-St Louis
19h 40m
1 stop
ORD7:40 amChicago O'Hare Intl
Aug 25
ORD9:25 pmChicago O'Hare Intl
14h 05m
1 stop
STL11:30 amLambert-St Louis
United Airlines
Jul 24
STL10:19 amLambert-St Louis
1h 29m
ORD11:48 amChicago O'Hare Intl
Jul 31
ORD12:55 pmChicago O'Hare Intl
1h 23m
STL2:18 pmLambert-St Louis
Multiple Airlines
Aug 4
STL12:15 pmLambert-St Louis
3h 35m
1 stop
ORD3:50 pmChicago O'Hare Intl
Aug 27
ORD6:09 amChicago O'Hare Intl
7h 28m
1 stop
STL1:37 pmLambert-St Louis
Delta
Jun 25
STL11:25 amLambert-St Louis
5h 39m
1 stop
MDW5:04 pmChicago Midway
Jun 29
MDW5:45 pmChicago Midway
3h 32m
1 stop
STL9:17 pmLambert-St Louis
Southwest
Aug 30
STL6:10 amLambert-St Louis
1h 10m
MDW7:20 amChicago Midway
Sep 1
MDW3:30 pmChicago Midway
5h 00m
1 stop
STL8:30 pmLambert-St Louis

Find the cheapest one-way flights from St. Louis to Chicago

If you're looking for one-way flights from St. Louis to Chicago, view some of our deals below provided by American Airlines, Southern / Mokulele and Spirit Airlines
American Airlines
Jun 20
STL6:00 amLambert-St Louis
1h 22m
ORD7:22 amChicago O'Hare Intl
Southern / Mokulele
Aug 27
STL12:15 pmLambert-St Louis
3h 35m
1 stop
ORD3:50 pmChicago O'Hare Intl
Spirit Airlines
Aug 27
STL2:35 pmLambert-St Louis
18h 58m
2 stops
ORD9:33 amChicago O'Hare Intl

Search last-minute flights to Chicago from St. Louis

Find and compare round-trip flight prices for your last-minute flight from St. Louis to Chicago
Southern / Mokulele
Jun 5
STL12:15 pmLambert-St Louis
3h 35m
1 stop
ORD3:50 pmChicago O'Hare Intl
Jun 6
ORD8:20 pmChicago O'Hare Intl
15h 25m
1 stop
STL11:45 amLambert-St Louis
Multiple Airlines
Jun 7
STL2:00 pmLambert-St Louis
26h 10m
1 stop
ORD4:10 pmChicago O'Hare Intl
Jun 10
ORD6:40 pmChicago O'Hare Intl
16h 17m
2 stops
STL10:57 amLambert-St Louis
Southern / Mokulele
Jun 3
STL12:00 pmLambert-St Louis
4h 10m
1 stop
ORD4:10 pmChicago O'Hare Intl
Jun 5
ORD9:25 pmChicago O'Hare Intl
14h 05m
1 stop
STL11:30 amLambert-St Louis
Southern / Mokulele
Jun 7
STL2:00 pmLambert-St Louis
26h 10m
1 stop
ORD4:10 pmChicago O'Hare Intl
Jun 10
ORD9:25 pmChicago O'Hare Intl
14h 05m
1 stop
STL11:30 amLambert-St Louis
Southern / Mokulele
Jun 7
STL5:00 pmLambert-St Louis
14h 40m
1 stop
ORD7:40 amChicago O'Hare Intl
Jun 9
ORD9:25 pmChicago O'Hare Intl
14h 05m
1 stop
STL11:30 amLambert-St Louis
American Airlines
Jun 7
STL6:08 pmLambert-St Louis
1h 22m
ORD7:30 pmChicago O'Hare Intl
Jun 10
ORD8:45 pmChicago O'Hare Intl
1h 17m
STL10:02 pmLambert-St Louis

Spirit Airlines flights from St. Louis to Chicago

Our best Spirit Airlines deals on St. Louis to Chicago flight tickets
Spirit Airlines
Aug 15
STL6:24 pmLambert-St Louis
23h 03m
1 stop
ORD5:27 pmChicago O'Hare Intl
Aug 20
ORD10:33 amChicago O'Hare Intl
35h 41m
2 stops
STL10:14 pmLambert-St Louis
Spirit Airlines
Jun 12
STL1:55 pmLambert-St Louis
16h 05m
2 stops
ORD6:00 amChicago O'Hare Intl
Jul 3
ORD6:16 pmChicago O'Hare Intl
23h 12m
2 stops
STL5:28 pmLambert-St Louis
Spirit Airlines
Jun 18
STL11:57 amLambert-St Louis
22h 17m
2 stops
ORD10:14 amChicago O'Hare Intl
Jun 20
ORD5:20 amChicago O'Hare Intl
12h 08m
2 stops
STL5:28 pmLambert-St Louis

American Airlines flights from St. Louis to Chicago

Our best American Airlines deals on St. Louis to Chicago flight tickets
American Airlines
Jun 26
STL6:00 amLambert-St Louis
1h 22m
ORD7:22 amChicago O'Hare Intl
Jun 26
ORD4:05 pmChicago O'Hare Intl
1h 13m
STL5:18 pmLambert-St Louis
American Airlines
Jun 18
STL6:08 pmLambert-St Louis
1h 22m
ORD7:30 pmChicago O'Hare Intl
Jun 20
ORD4:05 pmChicago O'Hare Intl
1h 13m
STL5:18 pmLambert-St Louis
American Airlines
Jun 20
STL6:08 pmLambert-St Louis
1h 22m
ORD7:30 pmChicago O'Hare Intl
Jun 21
ORD4:05 pmChicago O'Hare Intl
1h 13m
STL5:18 pmLambert-St Louis

How to get the cheapest flight ticket from St. Louis to Chicago

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

What is the cheapest month to fly from St. Louis to Chicago?

April. The cheapest time of year to fly to Chicago from St. Louis is April. Most expensive is July

What is the cheapest day to depart St. Louis for Chicago?

Wednesday. The cheapest day of the week is typically Wednesday. The most expensive is typically Monday

When is the cheapest time to fly from St. Louis to Chicago?

In the evening. St. Louis to Chicago flights are approximately 33% more expensive at noon than in the evening

What is the cheapest airline that flies to Chicago from St. Louis?

Southern / Mokulele. American Airlines, Delta, and Southern / Mokulele are the most popular carriers operating from St. Louis to Chicago

What is the cheapest St. Louis to Chicago flight route?

Lambert-St Louis - Chicago O'Hare Intl. Fly from Lambert-St Louis to Chicago O'Hare Intl for the best St. Louis - Chicago flight prices

How far in advance should you book St. Louis to Chicago flights?

40 days before. The cheapest time to buy a flight from St. Louis to Chicago is approximately 40 days to departure

How many flights depart from St. Louis to Chicago on average per day?

As of May 2024, there are 53 flights per week flying from St. Louis to Chicago. The most common time of day flights depart is 2:00PM, with 49% of flights taking off at noon.

How many flights depart from St. Louis to Chicago on average per week?

371 flights are operational weekly from St. Louis to Chicago as of May 2024. The most popular departure day for this route is Monday, with 16% of flights per week taking off on this day.

What cabin class options are available on St. Louis to Chicago flights?

There are 4 cabin classes available to choose from on St. Louis to Chicago flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on St. Louis to Chicago flights?

No. A direct flight is the cheapest option for a flight between St. Louis to Chicago.

Cheap St. Louis to Chicago (STL to CHI) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from St. Louis to Chicago

Best Price Found

$50

Fastest flight time

1h 10m

Direct flights

Every day

Airports in Chicago

2 airports
The best one-way flight to Chicago from St. Louis in the past 72 hours is $50. The best round-trip flight deal from St. Louis to Chicago found on momondo in the last 72 hours is $108.
The fastest flight from St. Louis to Chicago takes 1h 10m
Direct flights go from St. Louis to Chicago every day.
There are 2 airports near Chicago: Chicago O'Hare Intl (ORD), Chicago Midway (MDW)

  • How far is Lambert-St Louis to Chicago by plane?

    Lambert-St Louis and Chicago are 262.0 mi apart from one another. Flights usually cover this in 1h 10m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from Lambert-St Louis Airport to Chicago?

    Prices for flights from Lambert-St Louis Airport to Chicago are refreshed on a daily basis.

  • How many operators does momondo search for flights from Lambert-St Louis Airport to Chicago?

  • How old do you have to be to fly from Lambert-St Louis Airport to Chicago?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Lambert-St Louis Airport to Chicago.

  • What documentation or ID do you need to fly to Chicago?

    The travel and health documents required for your trip to Chicago can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Chicago. We always recommend checking with your airline or a trusted third party such as IATA to get advice.


Best airlines flying from St. Louis to Chicago

Compare and see reviews for airlines that fly from St. Louis to Chicago with momondo
Airline
Rating
Free Cancellation
Price
Southern / MokulelePriceFrom $106Free CancellationRating
8.1
25 reviews
Search Southern / Mokulele flights
American AirlinesPriceFrom $121Free CancellationRating
7.3
14,316 reviews
Search American Airlines flights
United AirlinesPriceFrom $130Free CancellationRating
7.4
10,799 reviews
Search United Airlines flights
DeltaPriceFrom $238Free CancellationRating
8.0
10,476 reviews
Search Delta flights
  • Southwest Flights From St. Louis to Chicago

    Southwest flight deals from St. Louis to Chicago start from $235 round-trip. Over the 42 Southwest flights for this route in a normal week, average airfare is usually $238 round-trip - but some users have found much cheaper deals with momondo.

  • United Airlines Flights From St. Louis to Chicago

    United Airlines (7.4/10 from 10,799 reviews) operates around 47 flights from St. Louis to Chicago in any given week. The average United Airlines airfare for this route is around $291, with deals from around $130 rare but found on momondo. Referenced prices are for round-trip St. Louis to Chicago flight searches in the last 72 hours.


Why use momondo?

Why should I use momondo to find a flight deal from St. Louis to Chicago?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Chicago from St. Louis.

Can I find flights from St. Louis to Chicago with flexible booking policies on momondo?

All flight searches from St. Louis to Chicago on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from St. Louis to Chicago?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Chicago from St. Louis.

I’m not ready to book a flight from St. Louis to Chicago right now. Can momondo alert me if prices change?

If you are not ready to book a flight from St. Louis to Chicago now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Chicago and let you know when they change.


An easier way to manage your Chicago 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.
1 adult
From?
To?
Sun 6/2
Sun 6/9
Email me momondo's favorite deals

Find better results for your trip to the United States

Fly into one of these airports located in Chicago
Airports listed have a maximum distance of 78.5 mi from Chicago