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Cheap flights from St. Louis to Chicago O'Hare Intl Airport from $49

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 1/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from St. Louis to Chicago

Cheap round-trip flights

These are some of the best round-trip flight deals from St. Louis to Chicago that have been recently found on momondo from popular airlines, departing in the coming months.

Cheap one-way flights

Flying one-way? These are some of the best deals recently discovered on momondo for flights from St. Louis to Chicago.

Cheap last minute flights

Planning a quick getaway from St. Louis to Chicago? These are the last-minute flight deals available now.

Cheap direct flights

If you prefer a non-stop journey, check out our latest direct flight deals to Chicago, so you can enjoy a seamless trip without layovers.

Cheap bus & train deals from St. Louis to Chicago

Find recent round-trip train or bus tickets from St. Louis to Chicago.

All round-trip flight deals to Chicago

The cheapest plane tickets to Chicago found on KAYAK recently.
2:00 pm - 4:10 pmSTL-ORD
26h 10m1 stop
9:25 pm - 4:45 pmORD-STL
19h 20m1 stop
$105Southern / Mokulele
Find Deal
Thu, Jan 30 - Sun, Feb 2
5:00 pm - 7:40 amSTL-ORD
14h 40m1 stop
8:20 pm - 7:55 pmORD-STL
23h 35m1 stop
$106Southern / Mokulele
Find Deal
Mon, Jan 13 - Thu, Jan 16
5:45 am - 7:07 amSTL-ORD
1h 22mnonstop
8:45 pm - 10:05 pmORD-STL
1h 20mnonstop
$142American Airlines
Find Deal
Sun, Dec 15 - Wed, Dec 18
5:45 am - 7:12 amSTL-ORD
1h 27mnonstop
8:50 pm - 10:13 pmORD-STL
1h 23mnonstop
$147American Airlines
Find Deal
Fri, Dec 13 - Sun, Dec 15
6:00 am - 12:55 pmSTL-ORD
6h 55m2 stops
7:05 am - 11:47 amORD-STL
4h 42m1 stop
$181Delta
Find Deal
Mon, Jan 13 - Thu, Jan 16
10:35 am - 12:05 pmSTL-ORD
1h 30mnonstop
2:10 pm - 3:38 pmORD-STL
1h 28mnonstop
$197United Airlines
Find Deal
Tue, Dec 31 - Tue, Jan 7
6:30 am - 1:00 pmSTL-ORD
6h 30m1 stop
6:20 am - 10:40 amORD-STL
4h 20m1 stop
$201Delta
Find Deal
Sat, Dec 14 - Sun, Dec 15
6:25 am - 8:00 amSTL-ORD
1h 35mnonstop
2:20 pm - 3:47 pmORD-STL
1h 27mnonstop
$222United Airlines
Find Deal
Thu, Dec 19 - Thu, Dec 26
8:05 pm - 11:30 amSTL-ORD
15h 25m2 stops
11:25 am - 8:20 pmORD-STL
8h 55m2 stops
$235Southwest
Find Deal
Sun, Jan 12 - Fri, Jan 17
7:40 pm - 2:00 pmSTL-ORD
18h 20m2 stops
6:15 am - 10:45 pmORD-STL
16h 30m3 stops
$240Southwest
Find Deal
Sun, Jan 12 - Fri, Jan 17
12:15 pm - 3:50 pmSTL-ORD
3h 35m1 stop
$49Southern / Mokulele
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Wed, Jan 1
12:15 pm - 3:50 pmSTL-ORD
3h 35m1 stop
$51Southern / Mokulele
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Thu, Mar 27
12:15 pm - 3:50 pmSTL-ORD
3h 35m1 stop
$52Southern / Mokulele
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Sun, Mar 16
5:05 pm - 9:27 amSTL-ORD
16h 22m1 stop
$65Frontier
Find Deal
Wed, Jan 22
6:25 am - 8:00 amSTL-ORD
1h 35mnonstop
$69United Airlines
Find Deal
Wed, Jan 1
6:30 am - 8:05 amSTL-ORD
1h 35mnonstop
$74United Airlines
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Thu, Jan 16
6:00 am - 12:32 pmSTL-ORD
6h 32m1 stop
$88Delta
Find Deal
Wed, Dec 25
6:00 am - 12:55 pmSTL-ORD
6h 55m2 stops
$93Delta
Find Deal
Wed, Jan 8
5:45 am - 7:09 amSTL-ORD
1h 24mnonstop
$124American Airlines
Find Deal
Thu, Nov 28
11:43 am - 1:09 pmSTL-ORD
1h 26mnonstop
$181American Airlines
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Thu, Dec 5
1:00 pm - 4:40 pmSTL-ORD
3h 40m1 stop
12:05 pm - 4:25 pmORD-STL
4h 20m1 stop
$226Southern / Mokulele
Find Deal
Tue, Nov 26 - Tue, Dec 3
1:00 pm - 4:40 pmSTL-ORD
3h 40m1 stop
12:05 pm - 8:50 amORD-STL
20h 45m1 stop
$236Southern / Mokulele
Find Deal
Mon, Nov 25 - Wed, Nov 27
1:00 pm - 4:32 pmSTL-ORD
3h 32m1 stop
11:51 am - 4:26 pmORD-STL
28h 35m3 stops
Mon, Nov 25 - Wed, Nov 27
4:10 pm - 5:28 pmSTL-ORD
25h 18m3 stops
12:30 pm - 4:25 pmORD-STL
3h 55m1 stop
Sat, Nov 23 - Mon, Nov 25
5:21 pm - 8:26 pmSTL-ORD
27h 05m2 stops
5:00 am - 4:26 pmORD-STL
11h 26m1 stop
$544Spirit Airlines
Find Deal
Sun, Nov 24 - Tue, Nov 26
10:10 am - 11:39 amSTL-ORD
1h 29mnonstop
8:05 pm - 9:36 pmORD-STL
1h 31mnonstop
$607United Airlines
Find Deal
Tue, Nov 26 - Tue, Dec 3
5:21 pm - 9:20 amSTL-ORD
15h 59m1 stop
12:57 pm - 4:26 pmORD-STL
27h 29m2 stops
$609Spirit Airlines
Find Deal
Sat, Nov 23 - Mon, Nov 25
5:00 am - 10:48 amSTL-ORD
5h 48m1 stop
8:25 am - 9:51 amORD-STL
1h 26mnonstop
$617American Airlines
Find Deal
Tue, Nov 26 - Tue, Dec 3
5:45 am - 7:09 amSTL-ORD
1h 24mnonstop
3:09 pm - 4:25 pmORD-STL
1h 16mnonstop
$657American Airlines
Find Deal
Tue, Nov 26 - Sun, Dec 1
11:20 am - 12:47 pmSTL-ORD
1h 27mnonstop
8:05 pm - 9:36 pmORD-STL
1h 31mnonstop
$663United Airlines
Find Deal
Fri, Nov 22 - Sun, Nov 24
5:45 am - 7:07 amSTL-ORD
1h 22mnonstop
8:45 pm - 10:05 pmORD-STL
1h 20mnonstop
$142American Airlines
Find Deal
Sun, Dec 15 - Wed, Dec 18
5:45 am - 7:12 amSTL-ORD
1h 27mnonstop
8:50 pm - 10:13 pmORD-STL
1h 23mnonstop
$147American Airlines
Find Deal
Thu, Dec 12 - Thu, Dec 12
6:00 pm - 7:29 pmSTL-ORD
1h 29mnonstop
8:45 pm - 10:09 pmORD-STL
1h 24mnonstop
$148American Airlines
Find Deal
Mon, Jan 13 - Thu, Jan 16
5:40 pm - 7:01 pmSTL-ORD
1h 21mnonstop
8:45 pm - 10:09 pmORD-STL
1h 24mnonstop
$158American Airlines
Find Deal
Mon, Dec 16 - Mon, Jan 20
11:30 am - 12:59 pmSTL-ORD
1h 29mnonstop
10:50 am - 12:16 pmORD-STL
1h 26mnonstop
$197United Airlines
Find Deal
Tue, Dec 31 - Wed, Jan 8
5:45 am - 7:14 amSTL-ORD
1h 29mnonstop
8:45 pm - 10:09 pmORD-STL
1h 24mnonstop
$207American Airlines
Find Deal
Mon, Jan 6 - Fri, Jan 10
5:45 am - 7:12 amSTL-ORD
1h 27mnonstop
8:50 pm - 10:13 pmORD-STL
1h 23mnonstop
$208American Airlines
Find Deal
Thu, Dec 12 - Sun, Dec 15
10:35 am - 12:05 pmSTL-ORD
1h 30mnonstop
10:50 am - 12:16 pmORD-STL
1h 26mnonstop
$212United Airlines
Find Deal
Tue, Dec 31 - Thu, Jan 9
6:23 pm - 7:50 pmSTL-ORD
1h 27mnonstop
2:14 pm - 3:40 pmORD-STL
1h 26mnonstop
$217American Airlines
Find Deal
Mon, Dec 23 - Tue, Dec 24
6:25 am - 8:00 amSTL-ORD
1h 35mnonstop
2:20 pm - 3:47 pmORD-STL
1h 27mnonstop
$222United Airlines
Find Deal
Thu, Dec 19 - Thu, Dec 26

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
Jan 30
STL2:00 pmLambert-St Louis
26h 10m
1 stop
ORD4:10 pmChicago O'Hare Intl
Feb 2
ORD9:25 pmChicago O'Hare Intl
19h 20m
1 stop
STL4:45 pmLambert-St Louis
Southern / Mokulele
Jan 13
STL5:00 pmLambert-St Louis
14h 40m
1 stop
ORD7:40 amChicago O'Hare Intl
Jan 16
ORD8:20 pmChicago O'Hare Intl
23h 35m
1 stop
STL7:55 pmLambert-St Louis
Southern / Mokulele
Dec 26
STL12:00 pmLambert-St Louis
4h 10m
1 stop
ORD4:10 pmChicago O'Hare Intl
Dec 29
ORD9:25 pmChicago O'Hare Intl
19h 20m
1 stop
STL4:45 pmLambert-St Louis

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

Our best American Airlines deals on St. Louis to Chicago O'Hare Intl Airport flight tickets
American Airlines
Dec 15
STL5:45 amLambert-St Louis
1h 22m
ORD7:07 amChicago O'Hare Intl
Dec 18
ORD8:45 pmChicago O'Hare Intl
1h 20m
STL10:05 pmLambert-St Louis
American Airlines
Dec 13
STL5:45 amLambert-St Louis
1h 27m
ORD7:12 amChicago O'Hare Intl
Dec 15
ORD8:50 pmChicago O'Hare Intl
1h 23m
STL10:13 pmLambert-St Louis
American Airlines
Jan 13
STL6:00 pmLambert-St Louis
1h 29m
ORD7:29 pmChicago O'Hare Intl
Jan 16
ORD8:45 pmChicago O'Hare Intl
1h 24m
STL10:09 pmLambert-St Louis

See travel insights to Chicago from

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 to Chicago O'Hare Intl Airport?

The month of September is another great option to travel to Chicago O'Hare Intl Airport, with average flight prices from St. Louis averaging around $217.

What is the cheapest day to depart on your flight to Chicago O'Hare Intl Airport?

The cheapest day to depart on your flight to Chicago O'Hare Intl Airport is on a Tuesday when prices can be found for as low as $222. This is often the case because there is less demand to fly during this day of the week. On the other hand, Sunday is the most expensive day to depart from St. Louis because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $315.

What is the cheapest time of day to depart on your flight to Chicago O'Hare Intl Airport?

Flying to Chicago O'Hare Intl Airport from St. Louis in the evening is the least expensive time of day to depart. momondo users have found prices as low as $231 when looking at flights departing in the evening. Try not to purchase tickets at noon because they tend to be around $301. Of course, these prices can vary depending on the time of year and what airport you fly to.

What is the cheapest Lambert-St Louis to Chicago O'Hare Intl flight route?

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

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

In general, most travelers find the cheapest time to book a flight to Chicago O'Hare Intl Airport is about 58 days prior to their departure date when tickets on average are $264. Don’t hesitate to check prices now though because momondo users recently found tickets for as low as $98.

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

There are 4 cabin classes available to choose from on Lambert-St Louis to Chicago O'Hare Intl 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?

You could potentially save up to 28% on your flight if you consider stops on a St. Louis to Chicago O'Hare Intl Airport flight.

How have St. Louis to Chicago O'Hare Intl Airport flight prices changed over time?

As of November 2024, prices for St. Louis to Chicago O'Hare Intl Airport flights are approximately 20% cheaper when compared to flights at the same time last year.

When to book flights from St. Louis to Chicago O'Hare Intl Airport

Are you open to changing your travel dates? Check out the ideal times to fly from St. Louis to Chicago O'Hare Intl Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

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

$49

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 $49. The best round-trip flight deal from St. Louis to Chicago O'Hare Intl Airport found on momondo in the last 72 hours is $105.
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.

  • What is the most popular plane model from St. Louis to Chicago O'Hare Intl Airport?

  • What is the most popular airline from St. Louis to Chicago O'Hare Intl Airport?


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
American AirlinesPriceFrom $115Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
Southern / MokulelePriceFrom $118Free CancellationRating
6.8
29 reviews
Search Southern / Mokulele flights
United AirlinesPriceFrom $119Free CancellationRating
7.4
9,172 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 $119. Generally, United Airlines has 36 flights on this route every week with an average price of $304. 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 $115 round-trip, depending on your selected dates, with average American Airlines deals seen on momondo around $259. American Airlines operates 24 flights to Chicago O'Hare Intl Airport from St. Louis in an average week. Users have rated it 7.2/10 across 10,000 reviews.


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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