Find Cheap Flights from Lambert-St Louis to Pittsburgh (STL - PIT)

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Good to Know

Low Season:
September
Best time to beat the crowds
2%
expected price decrease
High Season:
June
Most popular time to fly
12%
expected price increase
Average Price:
$297
(avg. price over the last 2 weeks)
Good Deal:
$224
or less (round trip)

When to Book Flights from Lambert-St Louis to Pittsburgh

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 $224 or less.
The cheapest flight from Lambert-St Louis to Pittsburgh was found 28 days before departure, on average.
Book at least 2 weeks before departure in order to get a below-average price.
High season is considered to be May, June and July. The cheapest month to fly is September.
Morning departure is around 6% more expensive 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 Lambert-St Louis to Pittsburgh Flights

How long does a flight from Lambert-St Louis to Pittsburgh take?
An average nonstop flight takes 3h 29m, covering a distance of 551 miles.
How many flights are there between Lambert-St Louis and Pittsburgh?
There are 17 (nonstop) flights between Lambert-St Louis and Pittsburgh per week, averaging 2 per day.
Which airlines provide the cheapest flights from Lambert-St Louis to Pittsburgh?
In the past 3 days, the cheapest round-trip tickets were found on Multiple Airlines ($193), American Airlines ($197) and Delta ($200).
Do I need a passport to fly between Lambert-St Louis and Pittsburgh?
No.
Which airlines fly most frequently between Lambert-St Louis and Pittsburgh?
Southwest (2 times daily) are the most frequent flyers on this route.
What’s the cheapest day of the week to fly Lambert-St Louis to Pittsburgh?
For Lambert-St Louis to Pittsburgh, Wednesday is the cheapest day to fly on average and Friday is the most expensive. Flying from Pittsburgh back to Lambert-St Louis, the best deals are generally found on Saturday, with Wednesday being the most expensive.

Book cheap flights from Lambert-St Louis to Pittsburgh (round-trip)

Airports
Origin
St. Louis
$193
only
$193
Destination
Pittsburgh
$193
only
$193
Wed, May 30
STL
PIT
5h 02m
Sun, Jun 3
PIT
STL
5h 57m
Trip: 5 days
Overall 0.0 Poor
Based on 0 reviews
Sat, Apr 14
STL
PIT
4h 14m
Tue, Apr 17
PIT
STL
4h 24m
Trip: 4 days
4.3OkayShow reviews
Overall 4.3 Okay
Based on 1 reviews
Overall
7.4
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
6.7
Food
6.7
DCA
CLT
Excellent 8.6

My wife is hypoglycemic and requires food. The flight was so early that none of the terminal restaraunts were open, nor did the plain have food for any passengers accept first class. I've purchased a box on other flights, but this one did not provide an option for a box lunch or breakfast.

LAS
DFW
Excellent 8.0

Flight was punctual and service was good.

Gate change

CLT
LGA
Excellent 10.0

Ability to upgrade to first class

Security taking forever

LHR
ORD
Mediocre 2.0

Nothing really. I will never book from Kayak ever

Everything

DFW
FLL
Excellent 8.0

No issues at all

N/A

Sat, May 5
STL
PIT
4h 17m
Tue, May 8
PIT
STL
7h 13m
Trip: 4 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 16027 reviews
Overall
8.0
Boarding
8.1
Comfort
7.8
Crew
8.4
Entertainment
7.5
Food
7.4
SMF
ATL
Excellent 8.6

The crew were so polite and happy!

Those seats! UGH!

ATL
DTW
Excellent 10.0

Pls see above

DTW
YOW
Excellent 9.3

Please see above. Sherry was amazing

Plane was small and older but it was a short flight

BOS
JFK
Excellent 9.3

The volume controls on the tv we’re pretty poor. Was either too loud or too soft with only 5-6 volume settings.

ECP
ATL
Excellent 9.6

We have been on 6 flights over the last 8 days, all with Delta and we have already started telling people how wonderful the service was. Sherry on this last flight was amazing, working so hard all by herself as our flight attendant. We were very impressed. And the pilots all came out to say goodbye and thank you. All very nice...esp for me who needed some wheelchair assistance. We will certainly fly with you again in the future.

Smaller plane but ok for short flight

Wed, Apr 18
STL
PIT
6h 22m
Sat, Apr 21
PIT
STL
6h 07m
Trip: 4 days
4.3OkayShow reviews
Overall 4.3 Okay
Based on 1 reviews
Overall
7.4
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
6.7
Food
6.7
STL
PIT
Okay 4.3

We made it to destination

We were 30+ minutes late taking off because this new-to-the-fleet plane didn't have all of the necessary paperwork in the cockpit. Like the takeoff checklist. We had to wait for that! Small plane, completely sold out. It was crowded and tight, with a very narrow aisle. Food? Entertainment? You must be kidding!

LHR
ORD
Mediocre 2.0

Nothing really. I will never book from Kayak ever

Everything

LHR
JFK
Excellent 9.3

Great flat beds, entertainment, noise cancelling headphones. Awesome 3 course meal.

Could have made the bar area more exciting ... as Virgin Atlantic bars do.

CLT
LGA
Excellent 10.0

Ability to upgrade to first class

Security taking forever

CLT
ILM
Mediocre 3.0

Three hours delay. I paid for a upgrade to first class. But because of the flight change i didn't get to keep my upgrade and I had to beg for a refund. I have had two trips in the past 5 days and all flights have been anywhere from 1 to 3 hours late. Worst experience with AA I have had in a long time.

Fri, Apr 27
STL
PIT
4h 00m
Sun, Apr 29
PIT
STL
6h 07m
Trip: 3 days
Overall 0.0 Poor
Based on 0 reviews
Thu, May 31
STL
PIT
6h 41m
Sat, Jun 2
PIT
STL
3h 39m
Trip: 3 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 16027 reviews
Overall
8.0
Boarding
8.1
Comfort
7.8
Crew
8.4
Entertainment
7.5
Food
7.4
BOS
BNA
Excellent 8.0

Service vey Good. Nice choices. Comfort seating very nice

WiFi awful. Useless.

ATL
MEX
Excellent 10.0

Flight was on time, crew was friendly, plane was clean, and boarding was painless and efficient. Food was served which was a huge plus. I appreciate having a choice of almonds for a snack.

ATL
JNB
Okay 4.0

Aircraft seemed shabby despite refresh of Comfort Plus, food was really mediocre. Steer clear of the Asian Veg option.

GDL
ATL
Excellent 9.0

Staff was great!

No TV for movies.

ATL
DTW
Excellent 10.0

Pls see above

Sat, Apr 21
STL
PIT
4h 14m
Tue, Apr 24
PIT
STL
4h 24m
Trip: 4 days
4.3OkayShow reviews
Overall 4.3 Okay
Based on 1 reviews
Overall
7.4
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
6.7
Food
6.7
STL
PIT
Okay 4.3

We made it to destination

We were 30+ minutes late taking off because this new-to-the-fleet plane didn't have all of the necessary paperwork in the cockpit. Like the takeoff checklist. We had to wait for that! Small plane, completely sold out. It was crowded and tight, with a very narrow aisle. Food? Entertainment? You must be kidding!

CLT
ILM
Mediocre 3.0

Three hours delay. I paid for a upgrade to first class. But because of the flight change i didn't get to keep my upgrade and I had to beg for a refund. I have had two trips in the past 5 days and all flights have been anywhere from 1 to 3 hours late. Worst experience with AA I have had in a long time.

LHR
ORD
Mediocre 2.0

Nothing really. I will never book from Kayak ever

Everything

JAX
DFW
Excellent 8.6

Polite. Clean. Nice business class.

Would like more Western food.

DCA
CLT
Excellent 8.6

My wife is hypoglycemic and requires food. The flight was so early that none of the terminal restaraunts were open, nor did the plain have food for any passengers accept first class. I've purchased a box on other flights, but this one did not provide an option for a box lunch or breakfast.

Mon, May 14
STL
PIT
3h 50m
Fri, May 18
PIT
STL
4h 17m
Trip: 5 days
Overall 0.0 Poor
Based on 0 reviews
Fri, Mar 16
STL
PIT
8h 01m
Sun, Mar 18
PIT
STL
4h 05m
Trip: 3 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 16027 reviews
Overall
8.0
Boarding
8.1
Comfort
7.8
Crew
8.4
Entertainment
7.5
Food
7.4
BOS
ATL
Okay 4.0

Comfort Plus allowed us to board early, useful USB ports.

DTW
YOW
Excellent 9.3

Please see above. Sherry was amazing

Plane was small and older but it was a short flight

DTW
MEX
Excellent 8.3

Even though I was disappointed by not being able to get the boarding passes from Delta for Aeromexico’s connecting flight to Bogota, I had an agent greet me after customs in Mexico to issue the boarding pass so I could use the transfer flight line. Excellent service throughout the entire trip.

Confusion over my boarding pass at the Delta terminal in Detroit.

BOS
BNA
Excellent 8.0

Service vey Good. Nice choices. Comfort seating very nice

WiFi awful. Useless.

SMF
ATL
Excellent 8.6

The crew were so polite and happy!

Those seats! UGH!

Wed, Apr 25
STL
PIT
4h 14m
Sat, Apr 28
PIT
STL
4h 35m
Trip: 4 days
4.3OkayShow reviews
Overall 4.3 Okay
Based on 1 reviews
Overall
7.4
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
6.7
Food
6.7
JAX
DFW
Excellent 8.6

Polite. Clean. Nice business class.

Would like more Western food.

PHX
GEG
Good 7.3

The crew was friendly and informative. They were very helpful. The

The seats were uncomfortable. They were hard and so narrow I had to sit crooked in the seat to keep from getting banged into by the service carts and every person going by to the bathrooms. I'm not tiny, but I'm not huge either, it was just overcrowded. It was also very hot in the airplane the entire way from Phoenix to Spokane. My husband, who is always cold, was even hot.

STL
PIT
Okay 4.3

We made it to destination

We were 30+ minutes late taking off because this new-to-the-fleet plane didn't have all of the necessary paperwork in the cockpit. Like the takeoff checklist. We had to wait for that! Small plane, completely sold out. It was crowded and tight, with a very narrow aisle. Food? Entertainment? You must be kidding!

ORD
CLT
Mediocre 3.0

Three hours delay. I paid for a upgrade to first class. But because of the flight change i didn't get to keep my upgrade and I had to beg for a refund. I have had two trips in the past 5 days and all flights have been anywhere from 1 to 3 hours late. Worst experience with AA I have had in a long time.

DFW
FLL
Excellent 8.0

No issues at all

N/A

Thu, May 31
STL
PIT
6h 19m
Sun, Jun 3
PIT
STL
5h 57m
Trip: 4 days
Overall 0.0 Poor
Based on 0 reviews
Thu, Apr 5
STL
PIT
5h 06m
Fri, Apr 6
PIT
STL
4h 26m
Trip: 2 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 16027 reviews
Overall
8.0
Boarding
8.1
Comfort
7.8
Crew
8.4
Entertainment
7.5
Food
7.4
BOS
JFK
Excellent 9.3

The volume controls on the tv we’re pretty poor. Was either too loud or too soft with only 5-6 volume settings.

ATL
DTW
Excellent 10.0

Pls see above

BOS
ATL
Okay 4.0

Comfort Plus allowed us to board early, useful USB ports.

SMF
ATL
Excellent 8.6

The crew were so polite and happy!

Those seats! UGH!

DTW
YOW
Excellent 9.3

Please see above. Sherry was amazing

Plane was small and older but it was a short flight

Sat, Apr 28
STL
PIT
4h 14m
Tue, May 1
PIT
STL
4h 51m
Trip: 4 days
4.3OkayShow reviews
Overall 4.3 Okay
Based on 1 reviews
Overall
7.4
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
6.7
Food
6.7
PHX
GEG
Good 7.3

The crew was friendly and informative. They were very helpful. The

The seats were uncomfortable. They were hard and so narrow I had to sit crooked in the seat to keep from getting banged into by the service carts and every person going by to the bathrooms. I'm not tiny, but I'm not huge either, it was just overcrowded. It was also very hot in the airplane the entire way from Phoenix to Spokane. My husband, who is always cold, was even hot.

JAX
DFW
Excellent 8.6

Polite. Clean. Nice business class.

Would like more Western food.

ORD
CLT
Mediocre 3.0

Three hours delay. I paid for a upgrade to first class. But because of the flight change i didn't get to keep my upgrade and I had to beg for a refund. I have had two trips in the past 5 days and all flights have been anywhere from 1 to 3 hours late. Worst experience with AA I have had in a long time.

CLT
ILM
Mediocre 3.0

Three hours delay. I paid for a upgrade to first class. But because of the flight change i didn't get to keep my upgrade and I had to beg for a refund. I have had two trips in the past 5 days and all flights have been anywhere from 1 to 3 hours late. Worst experience with AA I have had in a long time.

STL
PIT
Okay 4.3

We made it to destination

We were 30+ minutes late taking off because this new-to-the-fleet plane didn't have all of the necessary paperwork in the cockpit. Like the takeoff checklist. We had to wait for that! Small plane, completely sold out. It was crowded and tight, with a very narrow aisle. Food? Entertainment? You must be kidding!

Tue, Mar 6
STL
PIT
3h 29m
Wed, Mar 7
PIT
STL
5h 03m
Trip: 2 days
Overall 0.0 Poor
Based on 0 reviews
Thu, Apr 19
STL
PIT
6h 14m
Sun, Apr 22
PIT
STL
4h 30m
Trip: 4 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 16027 reviews
Overall
8.0
Boarding
8.1
Comfort
7.8
Crew
8.4
Entertainment
7.5
Food
7.4
DTW
YOW
Excellent 9.3

Please see above. Sherry was amazing

Plane was small and older but it was a short flight

ATL
JNB
Okay 4.0

Aircraft seemed shabby despite refresh of Comfort Plus, food was really mediocre. Steer clear of the Asian Veg option.

BOS
ATL
Okay 4.0

Comfort Plus allowed us to board early, useful USB ports.

ATL
MEX
Excellent 10.0

Flight was on time, crew was friendly, plane was clean, and boarding was painless and efficient. Food was served which was a huge plus. I appreciate having a choice of almonds for a snack.

SJC
SLC
Excellent 8.8

Good clean aircraft. Fairly comfortable seats. Even had a power outlet in my row. Not too bad for an aircraft from the late 70s.

for some reason, i had to pay to gate check a bag. It didnt seem like anyone else did while boarding my flight.

Wed, May 2
STL
PIT
6h 29m
Sat, May 5
PIT
STL
4h 17m
Trip: 4 days
4.3OkayShow reviews
Overall 4.3 Okay
Based on 1 reviews
Overall
7.4
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
6.7
Food
6.7
JFK
EZE
Excellent 9.0

Beautiful design n great storage

Hard to get out of seat unless in fully upright biz class position

LAS
DFW
Excellent 8.0

Flight was punctual and service was good.

Gate change

PHX
GEG
Good 7.3

The crew was friendly and informative. They were very helpful. The

The seats were uncomfortable. They were hard and so narrow I had to sit crooked in the seat to keep from getting banged into by the service carts and every person going by to the bathrooms. I'm not tiny, but I'm not huge either, it was just overcrowded. It was also very hot in the airplane the entire way from Phoenix to Spokane. My husband, who is always cold, was even hot.

CLT
ILM
Mediocre 3.0

Three hours delay. I paid for a upgrade to first class. But because of the flight change i didn't get to keep my upgrade and I had to beg for a refund. I have had two trips in the past 5 days and all flights have been anywhere from 1 to 3 hours late. Worst experience with AA I have had in a long time.

DCA
CLT
Excellent 8.6

My wife is hypoglycemic and requires food. The flight was so early that none of the terminal restaraunts were open, nor did the plain have food for any passengers accept first class. I've purchased a box on other flights, but this one did not provide an option for a box lunch or breakfast.

Fri, May 18
STL
PIT
4h 23m
Mon, May 21
PIT
STL
4h 18m
Trip: 4 days
Overall 0.0 Poor
Based on 0 reviews
Mon, May 7
STL
PIT
5h 50m
Thu, May 10
PIT
STL
4h 45m
Trip: 4 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 16027 reviews
Overall
8.0
Boarding
8.1
Comfort
7.8
Crew
8.4
Entertainment
7.5
Food
7.4
ATL
DTW
Excellent 10.0

Pls see above

DTW
YOW
Excellent 9.3

Please see above. Sherry was amazing

Plane was small and older but it was a short flight

ATL
JNB
Okay 4.0

Aircraft seemed shabby despite refresh of Comfort Plus, food was really mediocre. Steer clear of the Asian Veg option.

SMF
ATL
Excellent 8.6

The crew were so polite and happy!

Those seats! UGH!

ATL
MEX
Excellent 10.0

Flight was on time, crew was friendly, plane was clean, and boarding was painless and efficient. Food was served which was a huge plus. I appreciate having a choice of almonds for a snack.

Wed, May 9
STL
PIT
6h 22m
Sat, May 12
PIT
STL
4h 42m
Trip: 4 days
4.3OkayShow reviews
Overall 4.3 Okay
Based on 1 reviews
Overall
7.4
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
6.7
Food
6.7
DCA
CLT
Excellent 8.6

My wife is hypoglycemic and requires food. The flight was so early that none of the terminal restaraunts were open, nor did the plain have food for any passengers accept first class. I've purchased a box on other flights, but this one did not provide an option for a box lunch or breakfast.

PHX
GEG
Good 7.3

The crew was friendly and informative. They were very helpful. The

The seats were uncomfortable. They were hard and so narrow I had to sit crooked in the seat to keep from getting banged into by the service carts and every person going by to the bathrooms. I'm not tiny, but I'm not huge either, it was just overcrowded. It was also very hot in the airplane the entire way from Phoenix to Spokane. My husband, who is always cold, was even hot.

JAX
DFW
Excellent 8.6

Polite. Clean. Nice business class.

Would like more Western food.

LAS
DFW
Excellent 8.0

Flight was punctual and service was good.

Gate change

CLT
LGA
Excellent 10.0

Ability to upgrade to first class

Security taking forever

Mon, May 14
STL
PIT
5h 50m
Thu, May 17
PIT
STL
4h 45m
Trip: 4 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 16027 reviews
Overall
8.0
Boarding
8.1
Comfort
7.8
Crew
8.4
Entertainment
7.5
Food
7.4
ATL
DTW
Excellent 10.0

Pls see above

ECP
ATL
Excellent 9.6

We have been on 6 flights over the last 8 days, all with Delta and we have already started telling people how wonderful the service was. Sherry on this last flight was amazing, working so hard all by herself as our flight attendant. We were very impressed. And the pilots all came out to say goodbye and thank you. All very nice...esp for me who needed some wheelchair assistance. We will certainly fly with you again in the future.

Smaller plane but ok for short flight

BOS
BNA
Excellent 8.0

Service vey Good. Nice choices. Comfort seating very nice

WiFi awful. Useless.

SMF
ATL
Excellent 8.6

The crew were so polite and happy!

Those seats! UGH!

DTW
YOW
Excellent 9.3

Please see above. Sherry was amazing

Plane was small and older but it was a short flight

Show more results

Lambert-St Louis to Pittsburgh Flight Information

Flights Arrive in Pittsburgh
Flights Depart from Lambert-St Louis
Flight Price $193
Distance 551 miles
Airlines American Airlines, Delta
*
Prices are per person and are for e–tickets and include all taxes & fees in USD.

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Prices on airline seats, hotel rooms and car rentals can change frequently. Several people may also be trying to buy the same travel option simultaneously. As a result, you may find, on occasion, that certain prices are no longer available.

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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.