£296 Cheap Flights from Pittsburgh (PIT) to St. Louis (STL)

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Flight 1

Popular airlines from Pittsburgh International Airport (PIT) to Lambert-St. Louis International Airport (STL)

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Cheap Flights from Pittsburgh (PIT) to St. Louis (STL)

Prices were available within the past 7 days and start at £296 for one-way flights and for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frequently asked questions

How much is a flight from Pittsburgh Airport to St. Louis Lambert International Airport?
Round-trip tickets between Pittsburgh Intl. Airport (PIT) and St. Louis Lambert International Airport start from . This is based on fares quoted within the last 7 days on Expedia for flights departing within the next year — book now to avoid missing out. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Pittsburgh Intl. Airport (PIT) to STL?
This varies from airline to airline, as each one has its own set of terms and conditions. Visit the Customer Service Portal, where you'll find easy-to-follow instructions on how to cancel your flight online.
How do I find cheap flights from Pittsburgh Airport to Lambert Field that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for Pittsburgh Airport to St. Louis Lambert International Airport flights, you'll see a "no change fees" filter for you to select.
How far is the flight from Pittsburgh Intl. Airport (PIT) to STL?
The distance from PIT (PIT) to St. Louis Lambert International Airport (STL) is just 890 kilometres. You'll be stepping off the plane and collecting your suitcase from the carousel before long.
Which airlines fly direct from Pittsburgh Intl. Airport (PIT) to STL?
A favourite with many travellers, Southwest Airlines (WN) offers 30 flights every month from Pittsburgh Airport to Lambert Field. Pick the one that fits with your travel plans and book your seat today.
Are Pittsburgh Intl. Airport (PIT) to Lambert Field flight tickets cheaper when they're purchased at the last minute?
Last-minute bookings from Pittsburgh Intl. Airport (PIT) to St. Louis Lambert International Airport can be hit-or-miss. It is possible to find a bargain, but you could also miss out entirely! If you'd rather start planning ahead of time, Expedia compares flight deals up to 12 months in advance. Just keep in mind that not all airlines issue their prices that far in advance. Our suggestion? Check back often as updates are made frequently.

Frequently asked questions

Which airlines fly direct from Pittsburgh, PA (PIT-Pittsburgh Intl.) to St. Louis, MO (STL-Lambert-St. Louis Intl.)?
Enter PIT to STL and your travel dates, then apply the 'Nonstop' filter to see only direct flights.
How do I find cheap flights from Pittsburgh, PA (PIT-Pittsburgh Intl.) to St. Louis, MO (STL-Lambert-St. Louis Intl.)?
To find a cheap flight from Pittsburgh, PA (PIT-Pittsburgh Intl.) to St. Louis, MO (STL-Lambert-St. Louis Intl.), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best airline to fly with from Pittsburgh, PA (PIT-Pittsburgh Intl.) to St. Louis, MO (STL-Lambert-St. Louis Intl.)?
The best airline to fly with from Pittsburgh, PA (PIT-Pittsburgh Intl.) to St. Louis, MO (STL-Lambert-St. Louis Intl.) will differ from traveller to traveller. If you like to fly early, WN offers early morning flights. If price is the most important factor, WN typically offers the lowest fares. WN offers the most daily flights from Pittsburgh, PA (PIT-Pittsburgh Intl.) to St. Louis, MO (STL-Lambert-St. Louis Intl.), which is brilliant if flexibility is what you value most. The best carrier for this journey could also be the one you have a loyalty membership with, as flying with that airline or another airline within the same alliance could help you collect points or enjoy lounge access.
What is the best time to fly from Pittsburgh, PA (PIT-Pittsburgh Intl.) to St. Louis, MO (STL-Lambert-St. Louis Intl.)?
The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.
How many flights per day from Pittsburgh, PA (PIT-Pittsburgh Intl.) to St. Louis, MO (STL-Lambert-St. Louis Intl.)?
There are approximately 2 nonstop flights per day from Pittsburgh, PA (PIT-Pittsburgh Intl.) to St. Louis, MO (STL-Lambert-St. Louis Intl.). For even more choice, look at flights that include layovers, as there are around 76 connecting flights per day. Some common connection points include O'Hare Intl. (ORD), Hartsfield-Jackson Atlanta Intl. (ATL), and LaGuardia (LGA).
What is the earliest flight from Pittsburgh, PA (PIT-Pittsburgh Intl.) to St. Louis, MO (STL-Lambert-St. Louis Intl.)?
The earliest flight from Pittsburgh International Airport (PIT) to Lambert-St. Louis International Airport (STL) typically departs at approximately 5:00 AM local time, operated by American Airlines. This is a seasonal service active in January and December. An early departure like this can help you maximise your time at your destination. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What day of the week has the most flights from Pittsburgh, PA (PIT-Pittsburgh Intl.) to St. Louis, MO (STL-Lambert-St. Louis Intl.)?
You'll typically find the most flights from Pittsburgh International Airport (PIT) to Lambert-St. Louis International Airport (STL) on a Friday, with around 54 flights available. This gives you plenty of options for your travel plans. Major airlines on this route include Southwest Airlines, American Airlines, and United Airlines. Flight schedules are consistent throughout the week, with Friday offering only slightly more flights than other days.
What are the most popular departure times for flights from Pittsburgh, PA (PIT-Pittsburgh Intl.) to St. Louis, MO (STL-Lambert-St. Louis Intl.)?
The most popular departure times for flights from Pittsburgh Intl. (PIT) to Lambert-St. Louis Intl. (STL) are in the early morning, from 6am to 9am. About 31% of passengers prefer this time. Many major carriers, including American Airlines, Southwest Airlines and United Airlines, offer flights during this window. This timing works well because it allows you to get an early start on your travel day, arriving at your destination with plenty of time for activities.
How long does it take to fly from Pittsburgh, PA (PIT-Pittsburgh Intl.) to St. Louis, MO (STL-Lambert-St. Louis Intl.)?
A nonstop flight from PIT to STL typically takes around 1 hour 50 minutes, covering approximately 551 miles. Connecting flights on this route usually add 3 hours 30 minutes to your travel time. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Pittsburgh, PA (PIT-Pittsburgh Intl.) to St. Louis, MO (STL-Lambert-St. Louis Intl.)?
Select the "Business class" and "First class" filters when looking for PIT to STL flights on Expedia. This is the easiest way to compare prices, routes and flight times for your trip.
How do I earn miles on a Pittsburgh, PA (PIT-Pittsburgh Intl.) to St. Louis, MO (STL-Lambert-St. Louis Intl.) flight with Expedia?
It's easy to earn miles on a Pittsburgh, PA (PIT-Pittsburgh Intl.) to St. Louis, MO (STL-Lambert-St. Louis Intl.) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia. *Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for St. Louis from Pittsburgh Intl. (PIT)?
From Pittsburgh Intl. (PIT), you can fly directly into Lambert-St. Louis Intl. (STL) to reach St. Louis. Some flights may connect through major hubs like Baltimore Washington Intl. Thurgood Marshall (BWI), Midway Intl. (MDW), Washington Dulles Intl. (IAD) before reaching St. Louis. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Pittsburgh, PA (PIT-Pittsburgh Intl.) to St. Louis, MO (STL-Lambert-St. Louis Intl.) at the last minute?
Typically, booking a last minute flight from Pittsburgh, PA (PIT-Pittsburgh Intl.) to St. Louis, MO (STL-Lambert-St. Louis Intl.) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Pittsburgh, PA (PIT-Pittsburgh Intl.) to St. Louis, MO (STL-Lambert-St. Louis Intl.) flight and hotel package?
Securing a Pittsburgh, PA (PIT-Pittsburgh Intl.) to St. Louis, MO (STL-Lambert-St. Louis Intl.) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Pittsburgh, PA (PIT-Pittsburgh Intl.) to St. Louis, MO (STL-Lambert-St. Louis Intl.)?
If you booked your Pittsburgh, PA (PIT-Pittsburgh Intl.) to St. Louis, MO (STL-Lambert-St. Louis Intl.) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

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Origin airport
Pittsburgh Intl.
Destination airport
Lambert-St. Louis Intl.
Distance
881 km

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