To Pittsburgh

Cheap Flights from St. Louis to Pittsburgh

Browse current best options from St. Louis. Become a member to unlock all deals and get alerts when new deals appear.

Deals from

St. Louis

RatePunk searches hundreds of travel sites at once for deals on flights to Pittsburgh

Prices updated 24 days ago

486,190 searches this week

171 airlines compared

80%+ AI score for best value

Fares are subject to change and may not be available for all dates. (Data last updated May 29, 2026.)

Today’s best flight deals from St. Louis to Pittsburgh

Explore current cheapest deals departing from St. Louis to Pittsburgh

Round trip

Sort by: Cheapest

September 1 - September 30

Cheapest

STL - Pittsburgh

$238

$196

Round trip

October 21 - October 24

Best

STL - Pittsburgh

$306

$200

Round trip

August 11 - August 13

STL - Pittsburgh

$306

$201

Round trip

November 4 - November 7

STL - Pittsburgh

$300

$207

Round trip

July 15 - July 22

Earliest

STL - Pittsburgh

$290

$219

Round trip

August 5 - August 8

STL - Pittsburgh

$301

$225

Round trip

August 28 - September 10

STL - Pittsburgh

$264

$234

Round trip

August 28 - September 13

STL - Pittsburgh

$260

$234

Round trip

August 12 - August 20

STL - Pittsburgh

$277

$239

Round trip

July 24 - July 27

STL - Pittsburgh

$292

$240

Round trip

Unlock all 500+ flight deals to Pittsburgh and get alerts when great deals appear

Route Intelligence — 486,190 Searches this Week

Insights for flights from St. Louis to Pittsburgh

Most itineraries for cheap flights from St. Louis to Pittsburgh connect at least once, with only 20% of recent fares being non-stop. When connecting, the typical number of stopovers is 2. This means you will likely encounter itineraries with one or more stops when searching for flights on this route.

A typical journey from St. Louis to Pittsburgh takes about 8h 10m, including connections. This duration accounts for the median travel time across all observed itineraries, reflecting the common need for connecting flights on this route.

The distance between St. Louis and Pittsburgh is 889 km, classifying this as a short-haul route. This distance typically translates to shorter flight times, though the prevalence of connecting flights can extend the overall journey duration.

Right now, fares from St. Louis to Pittsburgh typically range from $277–$317, with a median of $315. Current fares are significantly below the typical level for this route, and 17% of recent fares were classified as a good price. New deals show up several times a week, so it is advisable to set up a price alert to track fare changes.

When is the cheapest time to fly from St. Louis to Pittsburgh? The most affordable month to fly is July, with a median fare of $163. January also offers competitive prices, with a median fare of $184. September presents another option, with a median fare of $272.

How much is a round trip from St. Louis to Pittsburgh

Regular price: $200 - $409

Prices are currently below the regular range.

The regular price range for flights from St. Louis to Pittsburgh is between $200 and $409. The current lowest deal is $196 via Kayak, for travel from September 1 to September 30, 2026.

now $196

Low $200

High $409

The cheapest time to fly from St. Louis to Pittsburgh

The cheapest month to fly from St. Louis to Pittsburgh is July, with a median price of $163. The most expensive month is February, with a median price of $363. Prices are generally lower from January to September.

July

Cheapest

Flights from $163

February

Most Expensive

Flights from $363

Jan

Feb

Apr

May

Jun

Jul

Aug

Sep

Direct flights from St. Louis to Pittsburgh

Southwest Airlines

Last-minute flights going from St. Louis to Pittsburgh

Wed, Jul 1

⌛ Last-Minute

STL - Pittsburgh

St. Louis (STL) - Pittsburgh (PIT)

Southwest Airlines

$155

$281

One-way

Wed, Jul 1

⌛ Last-Minute

STL - Pittsburgh

St. Louis (STL) - Pittsburgh (PIT)

United Airlines

$308

$438

One-way

Thu, Jul 2

⌛ Last-Minute

STL - Pittsburgh

St. Louis (STL) - Pittsburgh (PIT)

Frontier Airlines

$328

$309

One-way

Fri, Jul 3

⌛ Last-Minute

STL - Pittsburgh

St. Louis (STL) - Pittsburgh (PIT)

$318

$472

One-way

Wed, Jul 8

⌛ Last-Minute

STL - Pittsburgh

St. Louis (STL) - Pittsburgh (PIT)

Southwest Airlines

$169

$261

One-way

Thu, Jul 9

⌛ Last-Minute

STL - Pittsburgh

St. Louis (STL) - Pittsburgh (PIT)

Frontier Airlines

$308

$290

One-way

Biggest price drops on these dates for flights from St. Louis to Pittsburgh

3 nights

Oct 21 - Oct 24

$306 → $200

35%

2 nights

Aug 11 - Aug 13

$306 → $201

34%

3 nights

Nov 4 - Nov 7

$300 → $207

31%

3 nights

Aug 5 - Aug 8

$301 → $225

25%

Popular Airports to fly from St. Louis to Pittsburgh

St. Louis - Pittsburgh route insights

💸 Price insights

Recent fares are below the typical level

Recent fares from St. Louis to Pittsburgh are below the typical level, with deals around $196.

📅 Best time to fly

Fly in July for the best prices

Historically, July offers the lowest median price at $163, making it the cheapest month to fly.

⏱️ Flight duration

Connecting flights average 8h 10m

The median flight duration for this route is 8 hours 10 minutes, typically with 2 stopovers.

✈️ Airlines & availability

Connecting flights are dominant

Connecting flights make up 80% of deals, with direct flights being less common on this route.

🏆 Airline highlight

Southwest Airlines offers direct flights

Southwest Airlines is a provider of direct flights from St. Louis to Pittsburgh.

🎯 Booking tip

Deals appear regularly

Deals for flights from St. Louis to Pittsburgh appear regularly, about once every three days.

St. Louis main airports to depart from

St. Louis Lambert International (STL)

Cheapest

St. Louis Lambert International is a convenient departure point for flights to Pittsburgh.

📍 ~20 km from St. Louis city center (reachable by car or metro).

💸 Flights from ~$196

Pittsburgh main airports to arrive at

Pittsburgh International (PIT)

Cheapest

Pittsburgh International Airport is a convenient arrival option for flights from St. Louis to Pittsburgh.

📍 ~20 km from Pittsburgh city center (reachable by car)

💸 Flights from ~$196

Airports nearby Pittsburgh used as alternative

Cleveland Hopkins International (CLE)

Cheapest

Consider this airport for a wider selection of flights, including potentially cheaper options to the region.

📍 ~190 km from Pittsburgh (reachable by car)

💸 Flights from ~$109

Akron–Canton (CAK)

This airport offers easier navigation and good domestic connections for low-cost travelers.

📍 ~160 km from Pittsburgh (reachable by car)

💸 Flights from ~$226

University Park (SCE)

This airport provides reliable regional connections to major airline hubs, despite the distance.

📍 ~250 km from Pittsburgh (reachable by car)

💸 Flights from ~$309

Erie International (ERI)

This airport is an alternative for travelers in the northern corridor, though with limited departures.

📍 ~180 km from Pittsburgh (reachable by car)

💸 Flights from ~$305

Business & First Class Flight Deals to Pittsburgh

Pittsburgh, United States

38% AI deal score

$3,621

From STL

Elite

Jun 30

Pittsburgh, United States

37% AI deal score

$3,564

Frequently Asked Questions About Flights to Pittsburgh

To find more affordable flights, consider being flexible with your travel dates and times. Comparing prices across different airlines and booking platforms can also help you identify better deals. Often, booking in advance or looking for flights during off-peak seasons may lead to savings.

Booking flights usually several weeks or months in advance can often result in lower prices. Prices may fluctuate, so monitoring fares over time can help you decide the optimal booking moment. Last-minute bookings can sometimes be more expensive.

Comparing nearby airports can sometimes uncover additional flight options or potentially lower fares. While it may add to your ground travel time, the savings on airfare could be significant. Always factor in the total cost and convenience when considering alternative airports.

Related routes

Consider alternative routes from St. Louis

Flights from St. Louis to Amsterdam Flights from St. Louis to Athens Flights from St. Louis to Atlanta Flights from St. Louis to Auckland Flights from St. Louis to Barcelona Flights from St. Louis to Beijing Flights from St. Louis to Belfast Flights from St. Louis to Berlin Flights from St. Louis to Canberra Flights from St. Louis to Cancún Flights from St. Louis to Chicago Flights from St. Louis to Copenhagen