Cheap flights from Pittsburgh to St. Louis (PIT - STL)

PIT — STL
Dec 12 — Dec 191

The best prices from Pittsburgh to Lambert-St Louis are usually found in January or December, booked 55 days in advance, depart on a Wednesday or Thursday and return on a Saturday

How to find the cheapest flight from Pittsburgh (PIT) to St. Louis (STL)

All the information you need to plan the best PIT to STL flight in 2022: compare Pittsburgh to St. Louis flight prices with the expected peak season, weather and rainfall in St. Louis.

PIT - STL

Price

$163 - $514

STL

Temperature

32 - 80.6 °F

STL

Rainfall

2.2 - 4.7 inches

Popular inAugustHigh demand for flights, 37% potential price rise
Cheapest inJanuaryBest time to find cheap flights, 49% potential price drop
Average price$196Average for round-trip flights in December 2022
Round-trip from$163From Pittsburgh to Lambert-St Louis

What is the cheapest day to fly round-trip from Pittsburgh to St. Louis?

Saturday flights are generally found to be more expensive for flights from Pittsburgh to St. Louis. This shouldn’t discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to St. Louis.

How far in advance should I book a flight from Pittsburgh to St. Louis?

To save on the cost of your flight from Pittsburgh to St. Louis, book at least 55 days before your planned departure. Booking around this time can save you about 44% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $348 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $428.

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

Flights from Pittsburgh to St. Louis lean towards being more expensive in August. Prices are generally better when you fly from Pittsburgh to St. Louis in January, with the cheapest ticket starting at $150.

When is the cheapest time to fly from Pittsburgh to St. Louis (PIT - STL)?

A simple way to save on the total cost of your ticket is to fly from Pittsburgh to St. Louis at noon. If you’re flexible enough to do this you can expect to save up to 15% on your trip compared to booking a flight in the afternoon.

Cheap flights from Pittsburgh to St. Louis in December, January 2022

The best prices found for PIT to STL flights for December, January
Dec 12 - Dec 13
PIT

Pittsburgh

STL

Lambert-St Louis

1 stop

6h 05m
STL

Lambert-St Louis

PIT

Pittsburgh

1 stop

10h 27m
$168

Spirit Airlines

Pick Dates

Deal found 12/5

Jan 5 - Jan 9
PIT

Pittsburgh

STL

Lambert-St Louis

1 stop

9h 15m
STL

Lambert-St Louis

PIT

Pittsburgh

1 stop

7h 46m
$169

Spirit Airlines

Pick Dates

Deal found 12/7

Dec 20 - Dec 24
PIT

Pittsburgh

STL

Lambert-St Louis

1 stop

6h 32m
STL

Lambert-St Louis

PIT

Pittsburgh

1 stop

18h 01m
$174

Multiple Airlines

Pick Dates

Deal found 12/4

Pittsburgh to St. Louis 2022 flight deals

Cheap flights to St. Louis from Pittsburgh found for this year
Dec 12 - Dec 13
PIT

Pittsburgh

STL

Lambert-St Louis

1 stop

6h 05m
STL

Lambert-St Louis

PIT

Pittsburgh

1 stop

10h 27m
$168

Spirit Airlines

Pick Dates

Deal found 12/5

Dec 20 - Dec 24
PIT

Pittsburgh

STL

Lambert-St Louis

1 stop

6h 32m
STL

Lambert-St Louis

PIT

Pittsburgh

1 stop

18h 01m
$174

Multiple Airlines

Pick Dates

Deal found 12/4

Dec 19 - Dec 24
PIT

Pittsburgh

STL

Lambert-St Louis

1 stop

6h 05m
STL

Lambert-St Louis

PIT

Pittsburgh

1 stop

18h 01m
$206

Multiple Airlines

Pick Dates

Deal found 12/4

Cheap American Airlines flights from Pittsburgh to St. Louis

Jan 27 - Jan 29
PIT

Pittsburgh

STL

Lambert-St Louis

1 stop

7h 18m
STL

Lambert-St Louis

PIT

Pittsburgh

2 stops

13h 05m
$257

American Airlines

Pick Dates

Deal found 12/6

Jan 10 - Jan 12
PIT

Pittsburgh

STL

Lambert-St Louis

1 stop

4h 40m
STL

Lambert-St Louis

PIT

Pittsburgh

2 stops

9h 08m
$259

American Airlines

Pick Dates

Deal found 12/5

Jan 5 - Jan 8
PIT

Pittsburgh

STL

Lambert-St Louis

2 stops

7h 46m
STL

Lambert-St Louis

PIT

Pittsburgh

1 stop

4h 21m
$260

American Airlines

Pick Dates

Deal found 12/7

Cheap Spirit Airlines flights from Pittsburgh to St. Louis

Dec 12 - Dec 13
PIT

Pittsburgh

STL

Lambert-St Louis

1 stop

6h 05m
STL

Lambert-St Louis

PIT

Pittsburgh

1 stop

10h 27m
$168

Spirit Airlines

Pick Dates

Deal found 12/5

Jan 5 - Jan 9
PIT

Pittsburgh

STL

Lambert-St Louis

1 stop

9h 15m
STL

Lambert-St Louis

PIT

Pittsburgh

1 stop

7h 46m
$169

Spirit Airlines

Pick Dates

Deal found 12/7

Dec 12 - Jan 4
PIT

Pittsburgh

STL

Lambert-St Louis

1 stop

6h 05m
STL

Lambert-St Louis

PIT

Pittsburgh

1 stop

10h 27m
$220

Spirit Airlines

Pick Dates

Deal found 12/5

Last minute flights from Pittsburgh to St. Louis

Late deals on return flights to St. Louis from Pittsburgh, departing today and this week
Dec 12 - Dec 13
PIT

Pittsburgh

STL

Lambert-St Louis

1 stop

6h 05m
STL

Lambert-St Louis

PIT

Pittsburgh

1 stop

10h 27m
$168

Spirit Airlines

Pick Dates

Deal found 12/5

Dec 12 - Jan 4
PIT

Pittsburgh

STL

Lambert-St Louis

1 stop

6h 05m
STL

Lambert-St Louis

PIT

Pittsburgh

1 stop

10h 27m
$220

Spirit Airlines

Pick Dates

Deal found 12/5

Dec 13 - Dec 15
PIT

Pittsburgh

STL

Lambert-St Louis

1 stop

6h 32m
STL

Lambert-St Louis

PIT

Pittsburgh

1 stop

12h 24m
$223

Spirit Airlines

Pick Dates

Deal found 12/6

One-way flights to St. Louis from Pittsburgh

The cheapest one-way flights from Pittsburgh to St. Louis
Jan 24
PIT

Pittsburgh

STL

Lambert-St Louis

1 stop

10h 59m
$78

Multiple Airlines

Pick Dates

Deal found 12/6

Dec 20
PIT

Pittsburgh

STL

Lambert-St Louis

1 stop

6h 32m
$83

Spirit Airlines

Pick Dates

Deal found 12/4

Dec 14
PIT

Pittsburgh

STL

Lambert-St Louis

1 stop

6h 32m
$84

Spirit Airlines

Pick Dates

Deal found 12/5

Related info for your journey

Useful info, stats and facts about Pittsburgh to St. Louis flights.

Which airlines flying from Pittsburgh to Lambert-St Louis have flexible cancellations due to COVID-19?

American Airlines, Delta, and United Airlines are some of the carriers that may have flexible cancellation policies. You can use our site to filter for other airlines that may also have this kind of flexibility.

Can I find flights from Pittsburgh to St. Louis for under $200 on Cheapflights?

Yes, there are multiple flights from Pittsburgh to St. Louis for under $200. The cheapest flight booked recently is on Spirit Airlines for just $169, but on average you can expect to pay $235.

Are there last-minute flights available from Pittsburgh to St. Louis for under $200?

There are currently 20+ open flights from Pittsburgh to St. Louis within the next 7 days for less than $200.

How popular is this Pittsburgh to St. Louis flight route?

This flight path from Pittsburgh to Lambert-St Louis was viewed by 29 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

What are the cheapest airlines flying from Pittsburgh to St. Louis round-trip?

Spirit Airlines, at $169, was found to be the cheapest airline from Pittsburgh to St. Louis.Alternate airlines to your destination round-trip include Frontier and Delta. Users have found that Spirit Airlines is 47% cheaper than the other options available to this destination.

What are the cheapest airlines to fly from Pittsburgh to St. Louis one-way?

The cheapest airline one-way is Spirit Airlines, with whom users have recently found tickets for as low as $83. However, be on the lookout for offers from Frontier and American Airlines, as they are both options that can get you from Pittsburgh to St. Louis for a low price.

What are the most popular airlines that fly from Pittsburgh to St. Louis?

American Airlines, Delta and Juneyao Airlines are the most popular airlines when flying from Pittsburgh to St. Louis.

What are the cheapest flights from Pittsburgh to St. Louis?

The cheapest flight price from Pittsburgh to St. Louis is $253. On average you can expect to pay $784. The most popular route, (Pittsburgh - Lambert-St Louis), can usually be booked for $202.

Alternative routes for Pittsburgh to St. Louis

See prices for flight routes from nearby airports that may be better suited for you.

Top 5 airlines flying from Pittsburgh to St. Louis

The chart below displays the airlines Cheapflights users traveling from Pittsburgh to St. Louis choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
AirlineCheapestAverageFlexibilityOn-timeCOVID-19 safety
Juneyao AirlinesCheapest$9Average$22FlexibilityNo cancel feeOn-time66%COVID-19 safety
Search Juneyao Airlines flights
Spirit AirlinesCheapest$71Average$201FlexibilityNo cancel feeOn-time65%COVID-19 safety
Search Spirit Airlines flights
DeltaCheapest$165Average$338FlexibilityNo cancel feeOn-timeN/ACOVID-19 safety
Search Delta flights
American AirlinesCheapest$180Average$343FlexibilityNo cancel feeOn-time71%COVID-19 safety
Search American Airlines flights
United AirlinesCheapest$199Average$507FlexibilityNo cancel feeOn-time69%COVID-19 safety
Search United Airlines flights

Hourly flight availability from Pittsburgh to St. Louis

See what time of day planes typically take off from Pittsburgh to St. Louis
1%of flight departuresEarly morningMidnight to 6 am
62%of flight departuresMorning6 am to noon
25%of flight departuresAfternoonNoon to 6 pm
12%of flight departuresEvening6 pm to midnight
Midnight
6 AM
Noon
6 PM

Weekly flight availability from Pittsburgh to St. Louis

See how many times per day planes take to the skies headed from Pittsburgh to St. Louis
Sunday0daily flights
Monday1daily flight
Tuesday1daily flight
Wednesday1daily flight
Thursday1daily flight
Friday1daily flight
Saturday0daily flights