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Cheap flights from St. Louis to Chicago O'Hare Intl Airport from $46

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 O'Hare Intl Airport departing on 5/30. 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
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Wed 4/24
Wed 5/1

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Easily compare round-trip flights from St. Louis to Chicago O'Hare Intl Airport

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 O'Hare Intl Airport by changing tabs
Frontier
May 4
STL3:36 pmLambert-St Louis
8h 07m
1 stop
ORD11:43 pmChicago O'Hare Intl
May 8
ORD6:27 pmChicago O'Hare Intl
16h 11m
1 stop
STL10:38 amLambert-St Louis
American Airlines
May 14
STL5:55 amLambert-St Louis
1h 16m
ORD7:11 amChicago O'Hare Intl
May 15
ORD9:50 amChicago O'Hare Intl
1h 20m
STL11:10 amLambert-St Louis
Southern / Mokulele
May 2
STL12:00 pmLambert-St Louis
19h 40m
1 stop
ORD7:40 amChicago O'Hare Intl
May 9
ORD9:25 pmChicago O'Hare Intl
19h 20m
1 stop
STL4:45 pmLambert-St Louis
Multiple Airlines
May 2
STL11:38 amLambert-St Louis
13h 18m
1 stop
ORD12:56 amChicago O'Hare Intl
May 3
ORD9:25 pmChicago O'Hare Intl
14h 05m
1 stop
STL11:30 amLambert-St Louis
Delta
May 14
STL12:00 pmLambert-St Louis
6h 17m
1 stop
ORD6:17 pmChicago O'Hare Intl
May 21
ORD8:45 amChicago O'Hare Intl
4h 23m
1 stop
STL1:08 pmLambert-St Louis
Spirit Airlines
May 4
STL11:39 amLambert-St Louis
9h 26m
2 stops
ORD9:05 pmChicago O'Hare Intl
May 6
ORD10:00 pmChicago O'Hare Intl
15h 44m
2 stops
STL1:44 pmLambert-St Louis

Find the cheapest one-way flights from St. Louis to Chicago O'Hare Intl Airport

If you're looking for one-way flights from St. Louis to Chicago O'Hare Intl Airport, view some of our deals below provided by American Airlines, Delta and Southern / Mokulele
American Airlines
May 30
STL5:08 pmLambert-St Louis
1h 17m
ORD6:25 pmChicago O'Hare Intl
Southern / Mokulele
May 12
STL12:00 pmLambert-St Louis
4h 10m
1 stop
ORD4:10 pmChicago O'Hare Intl
Delta
Aug 7
STL2:05 pmLambert-St Louis
7h 13m
1 stop
ORD9:18 pmChicago O'Hare Intl

Search last-minute flights to Chicago O'Hare Intl Airport from St. Louis

Find and compare round-trip flight prices for your last-minute flight from St. Louis to Chicago O'Hare Intl Airport
Southern / Mokulele
Apr 25
STL12:00 pmLambert-St Louis
4h 10m
1 stop
ORD4:10 pmChicago O'Hare Intl
Apr 28
ORD9:25 pmChicago O'Hare Intl
19h 20m
1 stop
STL4:45 pmLambert-St Louis
Multiple Airlines
Apr 27
STL11:39 amLambert-St Louis
9h 26m
2 stops
ORD9:05 pmChicago O'Hare Intl
Apr 28
ORD9:25 pmChicago O'Hare Intl
14h 05m
1 stop
STL11:30 amLambert-St Louis
Southern / Mokulele
Apr 24
STL12:00 pmLambert-St Louis
19h 40m
1 stop
ORD7:40 amChicago O'Hare Intl
Apr 25
ORD9:25 pmChicago O'Hare Intl
14h 05m
1 stop
STL11:30 amLambert-St Louis
Southern / Mokulele
Apr 27
STL9:35 amLambert-St Louis
7h 05m
1 stop
ORD4:40 pmChicago O'Hare Intl
Apr 28
ORD7:45 pmChicago O'Hare Intl
24h 35m
1 stop
STL8:20 pmLambert-St Louis
Spirit Airlines
Apr 27
STL11:39 amLambert-St Louis
9h 26m
2 stops
ORD9:05 pmChicago O'Hare Intl
Apr 28
ORD7:40 amChicago O'Hare Intl
11h 00m
2 stops
STL6:40 pmLambert-St Louis
United Airlines
Apr 24
STL6:00 amLambert-St Louis
1h 31m
ORD7:31 amChicago O'Hare Intl
Apr 25
ORD12:57 pmChicago O'Hare Intl
1h 26m
STL2:23 pmLambert-St Louis

Best airlines flying from St. Louis to Chicago O'Hare Intl Airport

Compare and see reviews for airlines that fly from St. Louis to Chicago O'Hare Intl Airport with momondo
Airline
Rating
Free Cancellation
Price
Southern / MokulelePriceFrom $99Free CancellationRating
8.3
24 reviews
Search Southern / Mokulele flights
American AirlinesPriceFrom $128Free CancellationRating
7.3
14,955 reviews
Search American Airlines flights
United AirlinesPriceFrom $132Free CancellationRating
7.4
11,325 reviews
Search United Airlines flights
  • United Airlines Flights From St. Louis to Chicago O'Hare Intl Airport

    The lowest priced United Airlines flight from St. Louis to Chicago O'Hare Intl Airport from the last 72 hours was $132. Generally, United Airlines has 47 flights on this route every week with an average price of $294. United Airlines is rated 7.4/10 by our users.

  • American Airlines Flights From St. Louis to Chicago O'Hare Intl Airport

    American Airlines is also a popular choice for this route. American Airlines flight deals for St. Louis to Chicago O'Hare Intl Airport start from as low as $128 round-trip, depending on your selected dates, with average American Airlines deals seen on momondo around $278. American Airlines operates 21 flights to Chicago O'Hare Intl Airport from St. Louis in an average week. Users have rated it 7.3/10 across 14,955 reviews.


United Airlines flights from St. Louis to Chicago O'Hare Intl Airport

Our best United Airlines deals on St. Louis to Chicago O'Hare Intl Airport flight tickets
United Airlines
May 15
STL11:10 amLambert-St Louis
1h 21m
ORD12:31 pmChicago O'Hare Intl
May 17
ORD8:50 amChicago O'Hare Intl
1h 24m
STL10:14 amLambert-St Louis
United Airlines
May 2
STL11:10 amLambert-St Louis
1h 21m
ORD12:31 pmChicago O'Hare Intl
May 9
ORD8:50 amChicago O'Hare Intl
1h 24m
STL10:14 amLambert-St Louis
United Airlines
May 1
STL5:25 pmLambert-St Louis
1h 20m
ORD6:45 pmChicago O'Hare Intl
May 2
ORD8:50 amChicago O'Hare Intl
1h 24m
STL10:14 amLambert-St Louis

Southern / Mokulele flights from St. Louis to Chicago O'Hare Intl Airport

Our best Southern / Mokulele deals on St. Louis to Chicago O'Hare Intl Airport flight tickets
Southern / Mokulele
May 2
STL12:00 pmLambert-St Louis
19h 40m
1 stop
ORD7:40 amChicago O'Hare Intl
May 9
ORD9:25 pmChicago O'Hare Intl
19h 20m
1 stop
STL4:45 pmLambert-St Louis
Southern / Mokulele
May 14
STL12:00 pmLambert-St Louis
4h 10m
1 stop
ORD4:10 pmChicago O'Hare Intl
May 15
ORD9:25 pmChicago O'Hare Intl
14h 05m
1 stop
STL11:30 amLambert-St Louis
Southern / Mokulele
May 9
STL12:00 pmLambert-St Louis
4h 10m
1 stop
ORD4:10 pmChicago O'Hare Intl
May 16
ORD8:20 pmChicago O'Hare Intl
23h 35m
1 stop
STL7:55 pmLambert-St Louis

How to get the cheapest flight ticket from St. Louis to Chicago O'Hare Intl Airport

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 O'Hare Intl Airport?

January. The cheapest time of year to fly to Chicago O'Hare Intl Airport from St. Louis is January. Most expensive is July

What is the cheapest day to depart St. Louis for Chicago O'Hare Intl Airport?

Thursday. The cheapest day of the week is typically Thursday. The most expensive is typically Sunday

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

In the evening. St. Louis to Chicago O'Hare Intl Airport flights are approximately 48% more expensive at noon than in the evening

What is the cheapest airline that flies to Chicago O'Hare Intl Airport from St. Louis?

Southern / Mokulele. American Airlines, Southern / Mokulele, and United Airlines are the most popular carriers operating from St. Louis to Chicago O'Hare Intl Airport

How far in advance should you book St. Louis to Chicago O'Hare Intl Airport flights?

24 days before. The cheapest time to buy a flight from St. Louis to Chicago O'Hare Intl Airport is approximately 24 days to departure

How many flights depart from St. Louis to Chicago O'Hare Intl Airport on average per day?

As of April 2024, 47 flights take off from St. Louis and land in Chicago O'Hare Intl Airport each day. The most common flight departure time for this route is 9:00AM, with 50% of daily flights taking off at noon.

How many flights depart from St. Louis to Chicago O'Hare Intl Airport on average per week?

The number of flights available between St. Louis and Chicago O'Hare Intl Airport is 329 per week as of April 2024. The most frequent departure day is Monday, with 16% of weekly flights leaving on this day.

What cabin class options are available on St. Louis to Chicago O'Hare Intl Airport flights?

There are 3 cabin classes available to choose from on St. Louis to Chicago O'Hare Intl Airport 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 O'Hare Intl Airport flights?

No. A direct flight is the cheapest option for a flight between St. Louis to Chicago O'Hare Intl Airport.

Cheap St. Louis to Chicago O'Hare Intl Airport (STL to ORD) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from St. Louis to Chicago O'Hare Intl Airport

Best Price Found

$46

Fastest flight time

1h 15m

Direct flights

Every day
The best one-way flight to Chicago O'Hare Intl Airport from St. Louis in the past 72 hours is $46. The best round-trip flight deal from St. Louis to Chicago O'Hare Intl Airport found on momondo in the last 72 hours is $95.
The fastest flight from St. Louis to Chicago O'Hare Intl Airport takes 1h 15m
Direct flights go from St. Louis to Chicago O'Hare Intl Airport every day.

  • How far is Lambert-St Louis to Chicago O'Hare Intl by plane?

    Lambert-St Louis and Chicago O'Hare Intl are 261.0 mi apart from one another. Typically, this will take 1h 15m by plane in normal conditions.

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

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

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

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

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Lambert-St Louis Airport to Chicago O'Hare Intl Airport.

  • What documentation or ID do you need to fly to Chicago O'Hare Intl Airport?

    The travel and health documents you'll need for your trip to Chicago O'Hare Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Chicago O'Hare Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.


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?

Yes. All flights to Chicago from St. Louis on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

Once all potential St. Louis to Chicago flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

Of course. momondo tracks the price of St. Louis to Chicago flights. All you need is a valid email address and we will do the rest; it is that quick and easy.


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Wed 4/24
Wed 5/1
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