Your next trip, last seen at €118
Lowest observedWhen to fly
Explore datesFind the dates that work for you
The lowest fare we observed for each month. Open a month to see its days, then pick your outbound and return. A day with no price is one we will search for you.
One-way fare
- Lowest observed
- €118, departing 13 Dec 2026 (Last checked: 23 Oct 2026)One-way fareCheck live prices for this route
- Airlines seen
- Allegiant Air, Breeze Airways, Frontier Airlines, JetBlue, Southern Airways Express, United Airlines
- Typical journey time
- 5h
About this route
Explore the fares we observed from Pittsburgh to St Louis. Prices move often, so pick your dates to see the latest options.
- Route distance
- 897 km
- Typical journey time
- 5h
- Seen on fares with a connection
- United Airlines, Frontier Airlines, Allegiant Air, JetBlue, Southern Airways Express, Breeze Airways
- Alternative airports
- AGC, SUS
Route-level information; individual journeys vary.
We have not observed non-stop service on this route; the fares shown include at least one stop.
A clearer picture of your fare
If the observed fare for this date drops, we will email you. At most one message a day.
Airport to city: straight-line distance
- Pittsburgh International Airport (PIT) → Pittsburgh, city gazetteer reference point (40.4406, -79.9959): ≈ 21 km.
- St. Louis Lambert International Airport (STL) → St Louis, city gazetteer reference point (38.6270, -90.1994): ≈ 20 km.
Approximate distances calculated from coordinates, not road distances or travel times. These airports serve the city; they are not confirmed endpoints of an offer.
Frequently asked
How much is a flight from Pittsburgh to St Louis?
The lowest fare Routavio has observed is €118, found on 23 Oct 2026. Prices move, so read it as a floor rather than a quote.
When is the cheapest month to fly from Pittsburgh to St Louis?
In our observations December 2026 is the cheapest month so far, at €118.
Are there direct flights from Pittsburgh to St Louis?
Our data holds no non-stop flight from Pittsburgh to St Louis. The fares on this page include at least one stop.
Which airlines fly from Pittsburgh to St Louis?
Routavio has seen these carriers on the route: Allegiant Air, Breeze Airways, Frontier Airlines, JetBlue, Southern Airways Express, United Airlines.
How long does the flight from Pittsburgh to St Louis take?
Across the 104 fares Routavio observed, the average journey time is 9h 44m, including any stops. Individual departures vary; the fastest observed flight is listed in the route facts above.
How many of the observed Pittsburgh to St Louis fares were non-stop?
None of the 106 fares we observed was non-stop; every one included at least one stop. That describes our observations, not every flight that operates.
How observed prices work, what "No data" means and what a fare includes: Read the flight price guide · Price and schedule freshness on Routavio
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Recently observed fares. Prices may change.