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Cheap flights Pittsburgh — St Louis

Pittsburgh (PIT, US) St Louis (STL, US)
from $200 897 km ~1h 33m 2 flights found 2 airlines cheapest on Thursday
Reverse route
How many travellers?
Adults
12+ years
1
Children
2–11 years
0
Infants
under 2
0
Choose your departure date
Cheapest: $200 on 12.11.2026
Prices shown are from searches by other travellers over the last 24 hours. Missing a date? Click any day — we'll find tickets anyway.
November 2026
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December 2026
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January 2027
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Prices found for 1 of 90 days. Prices update as more travellers search. Click any date to search live.
Depart
—
Return
—
Cheapest flights found
12 Nov 2026, Thu
Allegiant Air G4 2740
22:15
PIT Pittsburgh International Airport
03:08
STL Lambert-St. Louis International Airport
4h 53m 2 stops
Tickets
$200
View this ticket
12 Nov 2026, Thu
Southwest Airlines WN 3561
14:50
PIT Pittsburgh International Airport
16:45
STL Lambert-St. Louis International Airport
1h 55m Direct
Farera
$449
View this ticket
Flights by stops
Direct
from $449
1 flight
2 stops
from $200
1 flight
All flights 1 days
12 Nov 2026, Thu
Allegiant Air G4 2740
22:15
PIT Pittsburgh International Airport
03:08
STL Lambert-St. Louis International Airport
4h 53m 2 stops
Tickets
$200
View this ticket
Route characteristics
Distance
897 km
Flight time
1h 33m
Time difference
-1h
Minimum price
from $200 (12.11.2026)
Average price
$200
Maximum price
$200
Cheapest day
Thursday
Departure airports (1)
PIT Pittsburgh International Airport
Arrival airports (1)
STL Lambert-St. Louis International Airport
Airlines (2)
G4 Allegiant Air WN Southwest Airlines
Agencies (2)
Tickets Farera
Airlines — cheapest prices 2
Allegiant Air
Allegiant Air
Low-cost 1 flights · 1 days
$200
Southwest Airlines
Southwest Airlines
Low-cost 1 flights · 1 days
$449
Where to buy tickets 2
Tickets
1 tickets · 1 days
from $200
Farera
1 tickets · 1 days
from $449
Airports

From — Pittsburgh (1)

  • PIT Pittsburgh International Airport

To — St Louis (1)

  • STL Lambert-St. Louis International Airport
Other destinations from Pittsburgh
Dallas
US · Hub
Miami
US · Hub
Boston
US
Atlanta
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Cincinnati
US
Memphis
US
Minneapolis
US · Hub
Cleveland
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Cancun
MX
Punta Cana
DO
Fort Lauderdale
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Hartford
US
Frequently asked questions about the route Pittsburgh — St Louis
How long is the flight from Pittsburgh to St Louis?
Approximate flight time — 1h 33m. This is an average for a direct flight. With connections, the time may be longer.
What is the distance from Pittsburgh to St Louis?
The straight-line distance — 897 km.
How much do flights from Pittsburgh to St Louis cost?
The minimum price over 3 months — from $200 on 12.11.2026.
What is the average ticket price?
The average price — $200. Range: $200 — $200.
What is the time difference between Pittsburgh and St Louis?
The difference — -1h.
From which airports does Pittsburgh operate flights?
From Pittsburgh: PIT (Pittsburgh International Airport).
To which airports in St Louis do flights arrive?
To St Louis: STL (Lambert-St. Louis International Airport).
Which airlines fly this route?
This route is served by 2 airlines: Allegiant Air, Southwest Airlines.
Are there direct flights?
Yes, there are direct flights. Minimum direct price — from $449. Total direct flights found: 1.
Which day of the week is cheapest?
The cheapest day of the week — Thursday.
When is the best time to buy tickets?
Optimal — 1–3 months before departure. Check the calendar above — it shows the best dates.
How do I book flights?
Click "View this ticket" on any flight card — you'll be redirected to the booking page with this specific ticket pre-selected.
About the route Pittsburgh — St Louis

Flights Pittsburgh — St Louis is a popular route. The straight-line distance is 897 km. Flight time 1h 33m. Time difference -1h.

From Pittsburgh (PIT) flights depart from 1 airport: PIT. To St Louis (STL) — 1 arrival airport: STL.

2 airlines operate on this route: Allegiant Air, Southwest Airlines.

The minimum price for the next 3 months — from $200 (12.11.2026). The cheapest dates are highlighted in the calendar above.

The average ticket price — $200, ranging from $200 to $200. Book 1–3 months in advance to get the best deals.

Cheapest day to fly — Thursday.

Other destinations in United States from Pittsburgh
Dallas
US
Miami
US
Boston
US
Atlanta
US
Cincinnati
US
Memphis
US
Minneapolis
US
Cleveland
US

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