Cheap flights from Pittsburgh to St. Louis from $129
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Pittsburgh to St. Louis departing on 1/19. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
Deals available from 900+ travel sites.
Big names and deals
Big names and deals
Search 100s of travel sites to compare prices.Filter for what you want
Filter for what you want
Free Wi-Fi? Stopover? Instantly customize your results.Trusted and free
Trusted and free
We’re completely free to use - no hidden charges or fees.Price Alerts
Price Alerts
Not ready to book? to track prices.Find the cheapest flights from Pittsburgh to St. Louis
Cheap round-trip flights
Cheap one-way flights
Cheap last minute flights
Cheap direct flights
Cheap bus & train deals from Pittsburgh to St. Louis
All round-trip flight deals to St. Louis
American Airlines flights from Pittsburgh to St. Louis
Our best American Airlines deals on Pittsburgh to St. Louis flight tickets
Delta flights from Pittsburgh to St. Louis
Our best Delta deals on Pittsburgh to St. Louis flight tickets
See travel insights to St. Louis from
How to get the cheapest flight ticket from Pittsburgh to St. Louis
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the cheapest month to fly to St. Louis?
In general, May is the cheapest month to fly from Pittsburgh to St. Louis. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $320. The month of February is another great option to travel to St. Louis, with average flight prices from Pittsburgh averaging around $327.
What is the cheapest day to depart on your flight to St. Louis?
The cheapest day to depart on your flight to St. Louis is on a Saturday when prices can be found for as low as $330. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around $382. These prices are subject to change though, so be sure to set up a Price Alert for flights to St. Louis.
What is the cheapest time of day to depart on your flight to St. Louis?
Flying to St. Louis from Pittsburgh in the evening is the least expensive time of day to depart. momondo users have found prices as low as $328 when looking at flights departing in the evening. At noon is when there is more demand to fly to St. Louis, so prices are often more expensive at around $385 per ticket.
What is the cheapest Pittsburgh to Lambert-St Louis flight route?
Fly from Pittsburgh to Lambert-St Louis for the best Pittsburgh - Lambert-St Louis flight prices
How far in advance should I book a flight to St. Louis?
The best time to book a flight to St. Louis from Pittsburgh is 28 days out, which is when prices tend to be around $349. In the past 72 hours, momondo users found flights from Pittsburgh to St. Louis for as low as $217.
What cabin class options are available on Pittsburgh to Lambert-St Louis flights?
There are 1 cabin classes available to choose from on Pittsburgh to Lambert-St Louis flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.
Can stopping save me money on Pittsburgh to St. Louis flights?
No. A direct flight is the cheapest option for a flight between Pittsburgh to St. Louis.
How have Pittsburgh to St. Louis flight prices changed over time?
As of December 2024, prices for Pittsburgh to St. Louis flights are approximately 102% more expensive when compared to flights at the same time last year.
How many flights depart from Pittsburgh to St. Louis on average per week?
As of December 2024, there are 4 flights per week flying from Pittsburgh to St. Louis. The most common day of the week flights depart is Mon, with 25% of flights taking off on this day.
When to book flights from Pittsburgh to St. Louis
Cheap Pittsburgh to St. Louis (PIT to STL) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Pittsburgh to St. Louis
Best Price Found | $129 |
|---|---|
Fastest flight time | 1h 50m |
Direct flights | Mon, Tue, Thu and Sat |
Airports in St. Louis | 1 airport |
How far is Pittsburgh to Lambert-St Louis by plane?
The straight-line distance from Pittsburgh to Lambert-St Louis is 557.2 mi. Flights usually cover this in 1h 55m, depending on flying conditions and air traffic around both airports.
When did momondo last update prices for flights from Pittsburgh Airport to Lambert-St Louis Airport?
Prices for flights from Pittsburgh Airport to Lambert-St Louis Airport refresh daily.
How many operators does momondo search for flights from Pittsburgh Airport to Lambert-St Louis Airport?
As of December 2024, there are 5 operators available to choose from for flights from Pittsburgh Airport to Lambert-St Louis Airport.
How old do you have to be to fly from Pittsburgh Airport to Lambert-St Louis Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Pittsburgh Airport to Lambert-St Louis Airport.
What documentation or ID do you need to fly to Lambert-St Louis Airport?
The travel and health documents you'll need for your trip to Lambert-St Louis Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Lambert-St Louis Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Pittsburgh to St. Louis?
momondo data reveals that the most frequently booked plane model on the route from Pittsburgh to St. Louis is Boeing 737-700 Passenger/BBJ1 (winglets), representing 33.33% of all bookings. The subsequent popular models are Boeing 737 MAX 8 at 28.74%, Boeing 737-800 Passenger/BBJ2 (winglets) at 10.34%, and Airbus A320 (sharklets) at 8.05%.
What is the most popular airline from Pittsburgh to St. Louis?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Pittsburgh to St. Louis is American Airlines (47% of total bookings). The next most popular airlines are Delta (24%), Southwest (15%), and United Airlines (10%).
Best airlines flying from Pittsburgh to St. Louis
Compare and see reviews for airlines that fly from Pittsburgh to St. Louis with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $169 | Free Cancellation | Rating 6.3 8,120 reviews | |||
| PriceFrom $189 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $246 | Free Cancellation | Rating 8.0 8,601 reviews | |||
| PriceFrom $254 | Free Cancellation | Rating 8.1 4,821 reviews | |||
| PriceFrom $287 | Free Cancellation | Rating 7.4 9,041 reviews |
Southwest Flights From Pittsburgh to St. Louis
The lowest priced Southwest flight from Pittsburgh to St. Louis from the last 72 hours was $254. Generally, Southwest has 4 flights on this route every week with an average price of $360. Southwest is rated 8.1/10 by our users.
Why use momondo?
Why should I use momondo to find a flight deal from Pittsburgh to St. Louis?
momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Pittsburgh to St. Louis. momondo saves you time and could save you money on your trip.
Can I find flights from Pittsburgh to St. Louis with flexible booking policies on momondo?
Flights from Pittsburgh to St. Louis with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.
How can momondo help me find flights from Pittsburgh to St. Louis?
Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to St. Louis from Pittsburgh.
I’m not ready to book a flight from Pittsburgh to St. Louis right now. Can momondo alert me if prices change?
If you are not ready to book a flight from Pittsburgh to St. Louis now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to St. Louis and let you know when they change.