Find Cheap Flights from Chicago O'Hare International to Lambert-St Louis (ORD - STL)

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Good to Know

Low Season:
December
Best time to beat the crowds
3%
expected price decrease
High Season:
October
Most popular time to fly
11%
expected price increase
Average Price:
$303
(avg. price over the last 2 weeks)
Good Deal:
$204
or less (round trip)

When to Book Flights from Chicago O'Hare International to Lambert-St Louis

Average price per month
Flight prices as travel date approaches
-1 day
-2 days

Top tips for Finding a Cheap Flight

Looking for a cheap flight? 25% of our users found flights on this route for $203 or less.
The cheapest flight from Chicago O'Hare International to Lambert-St Louis was found 61 days before departure, on average.
Book at least 3 weeks before departure in order to get a below-average price.
High season is considered to be September, October and November. The cheapest month to fly is December.
Morning departure is around 8% cheaper than an evening flight, on average*.
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

FAQs for Booking Chicago O'Hare International to Lambert-St Louis Flights

How long does a flight from Chicago O'Hare International to Lambert-St Louis take?
An average nonstop flight takes 1h 10m, covering a distance of 258 miles.
How many flights are there between Chicago O'Hare International and Lambert-St Louis?
There are 701 (nonstop) flights between Chicago O'Hare International and Lambert-St Louis per week, averaging 106 per day.
Which airlines provide the cheapest flights from Chicago O'Hare International to Lambert-St Louis?
In the past 3 days, the cheapest round-trip tickets were found on Cape Air ($133), United ($255) and American Airlines ($282).
Do I need a passport to fly between Chicago O'Hare International and Lambert-St Louis?
No.
Which airlines fly most frequently between Chicago O'Hare International and Lambert-St Louis?
United (18 times daily), Air Canada (15 times daily), American Airlines (11 times daily) are the most frequent flyers on this route.
What’s the cheapest day of the week to fly Chicago O'Hare International to Lambert-St Louis?
For Chicago O'Hare International to Lambert-St Louis, Sunday is the cheapest day to fly on average and Monday is the most expensive. Flying from Lambert-St Louis back to Chicago O'Hare International, the best deals are generally found on Friday, with Monday being the most expensive.

Book cheap flights from Chicago O'Hare International to Lambert-St Louis (round-trip)

Airports
Origin
Chicago
$133
only
$133
Destination
St. Louis
$133
only
$133
Sun, Mar 4
ORD
STL
12h 43m
Thu, Mar 15
STL
ORD
4h 03m
Trip: 11 days
7.7GoodShow reviews
Overall 7.7 Good
Based on 171 reviews
Overall
8.1
Boarding
8.1
Comfort
7.6
Crew
8.5
Entertainment
7.0
Food
6.7
LEB
HPN
Excellent 9.5

Friendly service, helpful, comfortable flight for a small plane. Good pilot, very professional.

My only complaint is when we landed in WestChester we deplaned and had to stand in the -5F wind-chill for a good 10-15 minutes while they unloaded our bags. I don't know why they couldn't have taken us inside to wait.

SJU
STX
Good 7.0

Friendly & informative pilot, smooth efficient ground crew: they didn't bang up my vintage Levi's back pack...

No complaints...A+

BOS
ALB
Mediocre 3.0

Crew was pilot and helpful in explaining the situation to me.

Got bumped from a flight to make way for a pilot in training. The fact that this happened on christmas eve made it even worse. Had to wait until boarding to find out that was being bumped and was told I shouldn't have been allowed to check in.

MWA
STL
Excellent 10.0

Flight on time. Nice smooth ride. Very friendly pilot.

MAZ
SJU
Excellent 10.0

I was pleasantly surprised by everything! It was easy staff was friendly and the piolet was great! What more can be said! Planning on using Cape Air again!

Fri, Feb 2
ORD
STL
1h 19m
Sun, Feb 4
STL
ORD
1h 23m
Trip: 3 days
5.9OkayShow reviews
Overall 5.9 Okay
Based on 44 reviews
Overall
7.2
Boarding
7.4
Comfort
6.9
Crew
7.7
Entertainment
6.5
Food
6.4
ORD
STL
Mediocre 2.0

It was not on united because it kept getting delayed.

ORD
STL
Okay 4.0

lost our bag, crying babies, uncomfortable plane

ORD
STL
Okay 5.6

2 hours delay. Seems a trend with United domestic flights (technical problems, not the weather issues). United should review flight schedule to consider the delay so the passengers don't have to be a victim of those delays.

Delay!! After traveling 20+ hours internationally, 2 hours delay on the last leg really is a big burden.

ORD
STL
Good 7.0

The snacks were great

Clearly a new flight crew. They needed some more practice with efficiency and reading the statements they are required to make. Previous flight was over an hour late arriving at the airport meaning that our flight was just as late departing for our flight. First we were told the flight was 20 minutes late, then 8 minutes late, then 40 minutes late, then 55 minutes late... Every time they told us the incoming flight was about to land.

ORD
STL
Okay 4.6

Courteous crew.

Old cramped plane (EMB 135/145). Was dingy, dirty and smelled bad, no wi-fi or entertainment options. Very loud ride even though I was near the front far from the engines.

Mon, Jan 29
ORD
STL
1h 10m
Fri, Feb 2
STL
ORD
1h 26m
Trip: 5 days
7.4GoodShow reviews
Overall 7.4 Good
Based on 46 reviews
Overall
7.3
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
6.7
Food
6.6
ORD
STL
Excellent 10.0

Love bed it! Would recommend to family/friends

ORD
STL
Excellent 10.0

It took off on time and life was good.

ORD
STL
Okay 5.6

Nothing to expect from Domestic fight.

ORD
STL
Okay 5.6

Plane was ancient

DFW
SAT
Okay 5.6

The flight was so short we did not even get a snack, only an offer of a bottle of water; this was simply due to to short length of the flight. Basic economy had my wife and I 16 rows apart each in a middle seat. I was in the very last seat on the plane. Flight attendants were attentive and surprisingly very nice, legroom is non-existent (same as every flight in plain coach).

High cost to prebook seats was twice what Spirit or Frontier would charge

Wed, Feb 14
ORD
STL
3h 58m
Fri, Feb 23
STL
ORD
4h 03m
Trip: 10 days
7.7GoodShow reviews
Overall 7.7 Good
Based on 171 reviews
Overall
8.1
Boarding
8.1
Comfort
7.6
Crew
8.5
Entertainment
7.0
Food
6.7
SJU
STT
Good 7.0

My first time on a such small plane and the ride and the landing were very smooth with great views!!

SJU
STT
Mediocre 2.3

small plane soft landing

pilote acts like army general single pilote only air vent poor in plane

STT
SJU
Mediocre 2.0

I asked the ground crew for a box that I had checked and was told that it would be forwarded to my next flight. It wasn't. Now cape air is telling me the only way I can get it back is to fly to San Juan and pick it up.

LEB
HPN
Excellent 9.5

Friendly service, helpful, comfortable flight for a small plane. Good pilot, very professional.

My only complaint is when we landed in WestChester we deplaned and had to stand in the -5F wind-chill for a good 10-15 minutes while they unloaded our bags. I don't know why they couldn't have taken us inside to wait.

MAZ
SJU
Excellent 10.0

I was pleasantly surprised by everything! It was easy staff was friendly and the piolet was great! What more can be said! Planning on using Cape Air again!

Tue, Mar 27
ORD
STL
3h 58m
Wed, Mar 28
STL
ORD
4h 03m
Trip: 2 days
7.7GoodShow reviews
Overall 7.7 Good
Based on 171 reviews
Overall
8.1
Boarding
8.1
Comfort
7.6
Crew
8.5
Entertainment
7.0
Food
6.7
SJU
STT
Mediocre 2.3

small plane soft landing

pilote acts like army general single pilote only air vent poor in plane

LEB
HPN
Excellent 9.5

Friendly service, helpful, comfortable flight for a small plane. Good pilot, very professional.

My only complaint is when we landed in WestChester we deplaned and had to stand in the -5F wind-chill for a good 10-15 minutes while they unloaded our bags. I don't know why they couldn't have taken us inside to wait.

SJU
STT
Mediocre 2.0

We were left waiting after the flight we were booked on took off full. Had to wait another 45min to have a private flight with no copilot.

SJU
STX
Good 7.0

Friendly & informative pilot, smooth efficient ground crew: they didn't bang up my vintage Levi's back pack...

No complaints...A+

BOS
ALB
Mediocre 3.0

Crew was pilot and helpful in explaining the situation to me.

Got bumped from a flight to make way for a pilot in training. The fact that this happened on christmas eve made it even worse. Had to wait until boarding to find out that was being bumped and was told I shouldn't have been allowed to check in.

Mon, Jan 22
ORD
STL
6h 05m
Thu, Jan 25
STL
ORD
2h 50m
Trip: 4 days
8.4ExcellentShow reviews
Overall 8.4 Excellent
Based on 54 reviews
Boarding
8.9
Comfort
8.5
Crew
9.0
Entertainment
7.8
Food
6.8
ORD
DEC
Okay 4.6

Easy check in, helpful crew members.

The approach to landing was so bumpy on both flights were so bad, I was so tense as the aircraft wavered, that I'll need to see a chiropractor when I return home. We wondered how many hours the pilot actually had logged in- My husband felt so badly that he cancelled my flight & booked a flight on Another airline so the return flight wouldn't further hurt my neck & back.

STL
DEC
Good 7.5

Stayed low, 8000-9000 feet so the view was good. Checked bag STL->ORD came out quickly.

No TSAPreChek. That means full search for me since I fail metal detectors. No prob in STL, went quick with XRay. At Decatur had to leave plane and reboard to continue flight to Chicago. TSA search at Decatur was intimate.

STL
MKL
Excellent 10.0

The plane only seats about 8 people, but I took my flight alone. We left on time and arrived on time !!!!!!! First time flying EVER.

BRL
ORD
Excellent 10.0

The view from the flight was lovely! And the flight was very smooth.

STL
DEC
Good 6.0

The flight was smooth and the pilot did a fly by of the Chicago skyline, it was beautiful!

We were delayed 4 hours for what would have been a four hour drive (St. Louis to Chicago), and it seemed far more like the norm than the exception. They offered is vouchers for next time, but I didn't even call to claim it, next time I will rent a car or take the bus.

Thu, Apr 5
ORD
STL
2h 28m
Sun, Apr 8
STL
ORD
2h 33m
Trip: 4 days
7.7GoodShow reviews
Overall 7.7 Good
Based on 171 reviews
Overall
8.1
Boarding
8.1
Comfort
7.6
Crew
8.5
Entertainment
7.0
Food
6.7
MAZ
SJU
Excellent 10.0

I was pleasantly surprised by everything! It was easy staff was friendly and the piolet was great! What more can be said! Planning on using Cape Air again!

SJU
STT
Good 7.0

My first time on a such small plane and the ride and the landing were very smooth with great views!!

BOS
MVY
Okay 4.0

The ease of changing flights.

Of the three women at the gate one was rude to everyone. The two others seemed ditzy and clueless. The announcements they made were incomprehensible to many in the passenger audience. There was substantial eye-rolling.

STT
SJU
Mediocre 2.0

I asked the ground crew for a box that I had checked and was told that it would be forwarded to my next flight. It wasn't. Now cape air is telling me the only way I can get it back is to fly to San Juan and pick it up.

LEB
HPN
Excellent 9.5

Friendly service, helpful, comfortable flight for a small plane. Good pilot, very professional.

My only complaint is when we landed in WestChester we deplaned and had to stand in the -5F wind-chill for a good 10-15 minutes while they unloaded our bags. I don't know why they couldn't have taken us inside to wait.

Tue, May 1
ORD
STL
3h 58m
Thu, May 3
STL
ORD
4h 03m
Trip: 3 days
7.7GoodShow reviews
Overall 7.7 Good
Based on 171 reviews
Overall
8.1
Boarding
8.1
Comfort
7.6
Crew
8.5
Entertainment
7.0
Food
6.7
SJU
STT
Mediocre 2.3

small plane soft landing

pilote acts like army general single pilote only air vent poor in plane

SLK
BOS
Okay 5.6

The View was spectacular. The plane was a little bit too smelly.

The View was beautiful

BOS
MVY
Okay 4.0

The ease of changing flights.

Of the three women at the gate one was rude to everyone. The two others seemed ditzy and clueless. The announcements they made were incomprehensible to many in the passenger audience. There was substantial eye-rolling.

SJU
STT
Mediocre 2.0

We were left waiting after the flight we were booked on took off full. Had to wait another 45min to have a private flight with no copilot.

SJU
STT
Good 7.0

My first time on a such small plane and the ride and the landing were very smooth with great views!!

Fri, Apr 27
ORD
STL
2h 28m
Sat, May 12
STL
ORD
2h 33m
Trip: 16 days
7.7GoodShow reviews
Overall 7.7 Good
Based on 171 reviews
Overall
8.1
Boarding
8.1
Comfort
7.6
Crew
8.5
Entertainment
7.0
Food
6.7
SJU
STX
Good 7.0

Friendly & informative pilot, smooth efficient ground crew: they didn't bang up my vintage Levi's back pack...

No complaints...A+

LEB
HPN
Excellent 9.5

Friendly service, helpful, comfortable flight for a small plane. Good pilot, very professional.

My only complaint is when we landed in WestChester we deplaned and had to stand in the -5F wind-chill for a good 10-15 minutes while they unloaded our bags. I don't know why they couldn't have taken us inside to wait.

BOS
ALB
Mediocre 3.0

Crew was pilot and helpful in explaining the situation to me.

Got bumped from a flight to make way for a pilot in training. The fact that this happened on christmas eve made it even worse. Had to wait until boarding to find out that was being bumped and was told I shouldn't have been allowed to check in.

MAZ
SJU
Excellent 10.0

I was pleasantly surprised by everything! It was easy staff was friendly and the piolet was great! What more can be said! Planning on using Cape Air again!

SJU
STT
Mediocre 2.3

small plane soft landing

pilote acts like army general single pilote only air vent poor in plane

Fri, Jun 1
ORD
STL
3h 58m
Sat, Jun 23
STL
ORD
19h 37m
Trip: 23 days
7.7GoodShow reviews
Overall 7.7 Good
Based on 171 reviews
Overall
8.1
Boarding
8.1
Comfort
7.6
Crew
8.5
Entertainment
7.0
Food
6.7
SJU
STX
Good 7.0

Friendly & informative pilot, smooth efficient ground crew: they didn't bang up my vintage Levi's back pack...

No complaints...A+

BOS
MVY
Okay 4.0

The ease of changing flights.

Of the three women at the gate one was rude to everyone. The two others seemed ditzy and clueless. The announcements they made were incomprehensible to many in the passenger audience. There was substantial eye-rolling.

SJU
STT
Mediocre 2.0

We were left waiting after the flight we were booked on took off full. Had to wait another 45min to have a private flight with no copilot.

STT
SJU
Mediocre 2.0

I asked the ground crew for a box that I had checked and was told that it would be forwarded to my next flight. It wasn't. Now cape air is telling me the only way I can get it back is to fly to San Juan and pick it up.

MWA
STL
Excellent 10.0

Flight on time. Nice smooth ride. Very friendly pilot.

Fri, Jun 29
ORD
STL
3h 58m
Sat, Jun 30
STL
ORD
19h 37m
Trip: 2 days
7.7GoodShow reviews
Overall 7.7 Good
Based on 171 reviews
Overall
8.1
Boarding
8.1
Comfort
7.6
Crew
8.5
Entertainment
7.0
Food
6.7
BOS
MVY
Okay 4.0

The ease of changing flights.

Of the three women at the gate one was rude to everyone. The two others seemed ditzy and clueless. The announcements they made were incomprehensible to many in the passenger audience. There was substantial eye-rolling.

SJU
STT
Good 7.0

My first time on a such small plane and the ride and the landing were very smooth with great views!!

MAZ
SJU
Excellent 10.0

I was pleasantly surprised by everything! It was easy staff was friendly and the piolet was great! What more can be said! Planning on using Cape Air again!

SJU
STX
Good 7.0

Friendly & informative pilot, smooth efficient ground crew: they didn't bang up my vintage Levi's back pack...

No complaints...A+

SJU
STT
Mediocre 2.3

small plane soft landing

pilote acts like army general single pilote only air vent poor in plane

Show more results

Chicago O'Hare International to Lambert-St Louis Flight Information

Avg. Flight Duration 1h 55m
Flights Arrive in Lambert-St Louis
Flights Depart from Chicago O'Hare International
Flight Price $133
Distance 258 miles
Airlines Cape Air, United, American Airlines, Air Choice One
*
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The fares displayed include all taxes and fees for economy class travel and were found by the provider in the last 72 hours. Seats are limited and may not be available on all flights and days. Fares are subject to change and may not be available on all flights or dates of travel. Some carriers charge additional fees for extra checked bags. Please check the carriers' sites.