Are direct flights from St. Louis to Pittsburgh always the best option?

Direct flights offer convenience and save time, but they are not always the most budget-friendly choice. Flights with layovers can sometimes be considerably cheaper, especially if you are flexible with your schedule. The 'best' option often depends on your priorities for cost versus travel time.

Can flexible travel dates help on St. Louis to Pittsburgh flights?

Yes, being flexible with your travel dates can often lead to finding more affordable flights. Prices for airfare can vary significantly depending on the day of the week or season. Shifting your travel by a few days may result in noticeable savings.

What extra costs should I check before booking St. Louis to Pittsburgh flights?

Before booking, always check for potential extra costs such as baggage fees, seat selection charges, and in-flight services. Some airlines may also charge for printing boarding passes or for certain payment methods. Understanding these fees upfront helps in calculating the true total cost of your trip.

Flights From St. Louis

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 2 days ago

405 airlines compared

80%+ AI score for best value

Fares are subject to change and may not be available for all dates. (Data last updated Jul 26, 2026.)

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

Explore current cheapest deals departing from St. Louis to Pittsburgh

2026-09-17 – 2026-09-21
STL - Pittsburgh
76% AI deal score
$281
$190
Round trip
2026-08-13 – 2026-08-20
STL - Pittsburgh
43% AI deal score
$164
$219
Round trip
2026-08-13 – 2026-08-18
STL - Pittsburgh
43% AI deal score
$170
$219
Round trip
2026-08-13 – 2026-08-17
STL - Pittsburgh
43% AI deal score
$174
$219
Round trip
2026-09-24 – 2026-09-26
STL - Pittsburgh
42% AI deal score
$156
$219
Round trip
2026-10-28 – 2026-10-30
STL - Pittsburgh
43% AI deal score
$165
$219
Round trip
2026-10-27 – 2026-10-28
STL - Pittsburgh
40% AI deal score
$164
$219
Round trip
2026-10-01 – 2026-10-04
STL - Pittsburgh
48% AI deal score
$274
$226
Round trip
2026-09-16 – 2026-10-04
STL - Pittsburgh
44% AI deal score
$237
$227
Round trip
2026-09-12 – 2026-09-14
STL - Pittsburgh
67% AI deal score
$280
$228
Round trip

St. Louis to Pittsburgh: Overview

Insights for flights from St. Louis to Pittsburgh

Most itineraries for flights from St. Louis to Pittsburgh connect at least once, with only 60% of recent fares being non-stop. When connections are necessary, the typical number of stopovers is 2.

A typical journey from St. Louis to Pittsburgh takes about 8h 10m, including connections. This duration accounts for both direct and connecting itineraries, providing a comprehensive view of travel time on this route.

For travelers seeking cheap flights from St. Louis to Pittsburgh, prices typically range from $275–$277, with a median of $276. Right now, fares are near the typical level. Approximately 15% of recent fares were classified as a good price, and new deals show up several times a week.

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 for more budget-conscious travel, with a median fare of $272.

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

Regular price: $117 - $342

Prices for flights from St. Louis to Pittsburgh are currently within the regular range.

The regular price range for flights from St. Louis to Pittsburgh is typically between $117 and $342. The current lowest deal is $217 with Southwest Airlines for travel from Sep 24-Sep 26.

now $217

Low $117

High $342

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

Sat, Aug 1

⌛ Last-Minute

STL - Pittsburgh

St. Louis (STL) - Pittsburgh (PIT)

Frontier Airlines

$509

$360

One-way

Thu, Aug 6

⌛ Last-Minute

STL - Pittsburgh

St. Louis (STL) - Pittsburgh (PIT)

Frontier Airlines

$380

$300

One-way

Thu, Aug 6

⌛ Last-Minute

STL - Pittsburgh

St. Louis (STL) - Pittsburgh (PIT)

Southern Airways

$377

$300

One-way

Mon, Aug 10

⌛ Last-Minute

STL - Pittsburgh

St. Louis (STL) - Pittsburgh (PIT)

Southwest Airlines

$185

$243

One-way

Tue, Aug 11

⌛ Last-Minute

STL - Pittsburgh

St. Louis (STL) - Pittsburgh (PIT)

Frontier Airlines

$330

$280

One-way

Wed, Aug 12

⌛ Last-Minute

STL - Pittsburgh

St. Louis (STL) - Pittsburgh (PIT)

Southwest Airlines

$163

$243

One-way

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

2 nights

Aug 1 - Aug 3

$509 → $360

29%

7 nights

Dec 7 - Dec 14

$313 → $228

27%

7 nights

Dec 3 - Dec 10

$313 → $228

27%

2 nights

Aug 6 - Aug 8

$380 → $300

21%

Popular Airports to fly from St. Louis to Pittsburgh

St. Louis - Pittsburgh route insights

💸 Price insights

Recent fares near the typical level

Recent fares from St. Louis to Pittsburgh are near the typical level of $276.

📅 Best time to fly

Fly in July for the best prices

Historically, July is the cheapest month to fly, with a median price of $163.

⏱️ Flight duration

Connecting flights average 8h 10m

Flights from St. Louis to Pittsburgh typically take 8h 10m with one or more stops.

✈️ Airlines & availability

Connecting flights are typical

Connecting flights are more common on this route, making up 60% of recent fares.

🏆 Airline highlight

Southwest Airlines offers direct flights

Southwest Airlines has offered direct flights on this route, with a recent deal at $217.

🎯 Booking tip

Deals appear regularly on this route

Deals on flights from St. Louis to Pittsburgh appear regularly, about every 30 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

Cleveland Hopkins International offers significantly more direct flight options and a broad carrier selection.

📍 ~135 km from Pittsburgh (reachable by car)

💸 Flights from ~$117

Business & First Class Flight Deals to Pittsburgh

80% AI deal score

$1,096

$599

Save $497

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 sites can often reveal better deals. Also, looking into flights with layovers may sometimes present lower fares than direct routes.

Booking flights in advance, often several weeks or months before your intended travel date, can sometimes result in lower prices. However, prices can fluctuate, so monitoring fares over time may help you identify a good booking window. Mid-week bookings might also offer slight advantages.

Comparing nearby airports can sometimes uncover different 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

More routes from St. Louis

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Flights to Pittsburgh from other cities

Flights from Amsterdam to Pittsburgh Flights from Atlanta to Pittsburgh Flights from Boston to Pittsburgh Flights from Charlotte to Pittsburgh Flights from Chicago to Pittsburgh Flights from Dallas to Pittsburgh Flights from Denver to Pittsburgh Flights from Fort Myers to Pittsburgh Flights from Frankfurt to Pittsburgh Flights from Nashville to Pittsburgh Flights from Tampa to Pittsburgh Flights from Washington, D.C. to Pittsburgh

St. Louis to Pittsburgh: Overview

Insights for flights from St. Louis to Pittsburgh

Most itineraries for flights from St. Louis to Pittsburgh connect at least once, with only 60% of recent fares being non-stop. When connections are necessary, the typical number of stopovers is 2.

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

Regular price: $117 - $342

Prices for flights from St. Louis to Pittsburgh are currently within the regular range.

The regular price range for flights from St. Louis to Pittsburgh is typically between $117 and $342. The current lowest deal is $217 with Southwest Airlines for travel from Sep 24-Sep 26.

now $217

Low $117

High $342

The cheapest time to fly from St. Louis to Pittsburgh

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

Sat, Aug 1

⌛ Last-Minute

STL - Pittsburgh

St. Louis (STL) - Pittsburgh (PIT)

Frontier Airlines

$509

$360

One-way

Thu, Aug 6

⌛ Last-Minute

STL - Pittsburgh

St. Louis (STL) - Pittsburgh (PIT)

Frontier Airlines

$380

$300

One-way

Thu, Aug 6

⌛ Last-Minute

STL - Pittsburgh

St. Louis (STL) - Pittsburgh (PIT)

Southern Airways

$377

$300

One-way

Mon, Aug 10

⌛ Last-Minute

STL - Pittsburgh

St. Louis (STL) - Pittsburgh (PIT)

Southwest Airlines

$185

$243

One-way

Tue, Aug 11

⌛ Last-Minute

STL - Pittsburgh

St. Louis (STL) - Pittsburgh (PIT)

Frontier Airlines

$330

$280

One-way

Wed, Aug 12

⌛ Last-Minute

STL - Pittsburgh

St. Louis (STL) - Pittsburgh (PIT)

Southwest Airlines

$163

$243

One-way

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

2 nights

Aug 1 - Aug 3

$509 → $360

29%

7 nights

Dec 7 - Dec 14

$313 → $228

27%

7 nights

Dec 3 - Dec 10

$313 → $228

27%

2 nights

Aug 6 - Aug 8

$380 → $300

21%

Popular Airports to fly from St. Louis to Pittsburgh