Beginning of main content

Earn rewards on top of your airline miles with Orbitz Rewards

Many airlines offer flexible change policies

Sign up to receive text alerts about your trip

Fares from $73 One Way, $182 Round Trip from Pittsburgh to St. Louis

Prices starting at $182 for return flights and $73 for one-way flights to St. Louis were the cheapest prices found within the past 7 days, for the period specified. Prices and availability are subject to change. Additional terms apply.

Need A Hotel In St. Louis?

Hotels In Top St. Louis Neighborhoods

Stay Near Exciting St. Louis Attractions

More About Flying To St. Louis from Pittsburgh

Route Information for Flights from Pittsburgh to St. Louis

Origin Airport IATA CodePIT
Destination Airport IATA CodeSTL
Distance551 mi
Direct Flight AirlinesSouthwest Airlines
Earliest Flight Arrival4:15PM UTC
Latest Flight Arrival4:15PM UTC

Fly from Pittsburgh to St Louis

Pittsburgh International Airport

The Pittsburgh International Airport is located just twenty miles west of downtown on Airport Boulevard. Twelve airlines service the airport, including Midwest, Northwest, JetBlue, Delta, Continental and American Airlines. Orbitz.com can locate both domestic and international flights from Pittsburgh for the budget traveler.

Parking at the Airport

Short-term, long-term and extended parking lots are available at the airport. Rates are charged by the hour or by the day. Valet parking is also available for an additional fee. The short-term lot is perfect for people who are dropping off or picking up travelers. Long-term lots are ideal for travelers going on short vacations, and the extended lots are most economical for long business trips. Shuttle services are available to and from the parking lots.

Transportation to the Airport

Getting to the airport can often be a challenge. Orbitz.com can help you select a car rental service if you want to rent a car during your stay. Most hotels offer their guests free shuttle service to and from the airport. Limos are available for rent, and fees are usually charged by the hour. Other transportation options include metered taxi services and the city bus system, which charges a flat rate.

Pittsburgh International Airport Restaurants

Travelers can enjoy a meal or a snack in the airport terminals before they board their plane. Restaurant choices include McDonald's, which offers a variety of breakfast items and coffee, and Mayorga Coffee Roasters, which offers a selection of gourmet coffees and pastries. Orbitz.com can help with dining options while providing low-fare flights from Pittsburgh for people traveling on a budget.

Lambert-St. Louis International Airport

Allow Orbitz.com to help you book flights to St. Louis. Lambert-St.Louis International Airport is located 10 miles northwest of St. Louis. Over 13 million passengers pass through the airport each year. It is the largest airport in the state of Missouri and services 255 daily departures to over 90 cities, domestically and internationally. Southwest Airlines is based out of Lambert, and Air Canada, Alaska Airlines, Cape Air, Delta and American Airlines all have major hubs at Lambert. You can use Orbitz.com to book bargain tickets on your next trip to the St. Louis area.

St. Louis International Airport Transportation

St. Louis International Airport offers a variety of transportation services for the busy traveler. Shuttle services, rental cars, and public transportation are available at the airport. Go Best Express Airport Shuttle is a popular shuttle service for group transportation. One-way fares start at $17. The MetroLink is St. Louis' rail system and operates 37 stations throughout the city. One-way fares cost $2.

St. Louis Weather

St. Louis has distinct seasons. Summers are hot, and temperatures can get as high as 90 degrees F. Spring is usually a rainy season for St. Louis, so it is best to pack an umbrella for your trip during March, April and May. Fall is usually mild, with temperatures averaging 57 degrees F. Winters can be freezing, with temperature falling to 20 degrees F. Bring a warm coat and boots during winter trips to St. Louis.

Popular Attractions in St. Louis

St. Louis offers a variety of attractions for visitors. Some popular attractions include the famous Gateway Arch, Six Flags of St. Louis, the Saint Louis Zoo and Forest Park. St. Louis is also home to several theaters, such as the Ferrara Theatre, Fox Theatre, and Grand Center. Some popular museums include the St. Louis Children's Museum and the Beall Mansion Museums. Book flights to St. Louis with the help of Orbitz.com to visit these popular attractions.

Flights from Pittsburgh to St. Louis - Frequently Asked Questions

Are there non-stop flights from Pittsburgh to St. Louis?

You can fly directly from Pittsburgh to St. Louis with Southwest Airlines. It's the only carrier with nonstop services from Pittsburgh, PA (PIT-Pittsburgh Intl.) to St. Louis, MO (STL-Lambert-St. Louis Intl.).

What is the shortest flight from Pittsburgh to St. Louis?

The journey from Pittsburgh to St. Louis can be as quick as 1 hour and 40 minutes. With an easy flight time like this, why not round up some friends and take off on a spur-of-the-moment getaway?

What airlines fly from Pittsburgh (and vicinity) to St. Louis (and vicinity) most frequently?

If you're looking for the airline that offers the most flights from Pittsburgh (and vicinity) to St. Louis (and vicinity), Southwest Airlines is your best bet. This renowned carrier operates 31 flights along this route every month.

If I am not able to travel due to COVID-19, can I cancel my flight to St. Louis?

We get that traveling right now has its challenges, so it's good to know that many reservations booked through us are able to be cancelled or changed. If your travel plans to St. Louis have been affected by COVID-19, a lot of airlines are making things easier by offering credits to use at a later date. Just sign in to your account and you'll quickly see what options are available. Our Customer Service Portal is the place to go for more information.

Are there flights to St. Louis with flexible change policies?

In most cases you'll have the option to reschedule your flight to St. Louis without a change fee. All you have to do then is pay the difference between the old flight and the new one. Look for the "no change fees" filter and book with confidence.

What is the cheapest day of the week to fly?

Consider flying out early in the week to save on your airfare. Orbitz data from 2019 shows that Tuesday is the cheapest day to depart, followed by Monday. Saturday showed the highest average ticket prices likely because many travelers prefer to start their vacation on a weekend.

What is the cheapest month to fly?

We won't keep you guessing, according to Orbitz data the cheapest month to fly is February. Perfect for those who need a weekend getaway, or just a fresh start to the new year. Be aware that the most expensive time to fly isn't the height of summer, as most people assume, but the festive month of December.

How can I save money on flights?

To really save big on your next vacation, think outside the box. Select two different airlines or fare types for your return trip and you'll generally get a much better deal. Those who tried this on Orbitz in 2019 saved over 50% on their airfares. Get mixing and matching today!

*According to flight demand on Orbitz.com from January to December 2019. Savings are subject to change based on departure location, date and destination.

^Savings based on all package bookings with Flight + Hotel made on Orbitz.com from January 1, 2019 to December 31, 2019 as compared to the price of the same components booked separately. Savings will vary based on origin/destination, length of trip, stay dates and selected travel supplier(s). Savings not available on all packages.