Cheap flights from Pittsburgh to St. Louis (PIT - STL) from $80

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/27. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
PIT — STL
Jun 11 — Jun 181

The best prices from Pittsburgh to Lambert-St Louis are usually found in December or September, booked 83 days in advance, depart on a Tuesday or Saturday and return on a Monday

Cheap flight deals from Pittsburgh to St. Louis

Discover tips and strategies to find the most affordable flight options for your journey from Pittsburgh (PIT) to St. Louis (STL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated June 6, 2024.

Popular in

May

Cheapest in

December

Round-trip from

$318

One-way from

$80
High demand for flights, 22% potential price rise
Best time to find cheap flights, 17% potential price drop
From Pittsburgh to Lambert-St Louis
One-way flight from Pittsburgh to Lambert-St Louis

What is the cheapest day to fly round-trip from Pittsburgh to St. Louis?

Saturday flights are generally found to be more expensive for flights from Pittsburgh to St. Louis. This shouldn’t discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to St. Louis.

How far in advance should I book a flight from Pittsburgh to St. Louis?

To save on the cost of your flight from Pittsburgh to St. Louis, book at least 53 days before your planned departure. Booking around this time can save you about 114% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $404 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $465.

What is the cheapest month to fly from Pittsburgh to St. Louis?

Flights from Pittsburgh to St. Louis lean towards being more expensive in May. Prices are generally better when you fly from Pittsburgh to St. Louis in December, with the cheapest ticket starting at $232.

What is the cheapest time of day to fly from PIT to STL?

A simple way to save on the total cost of your ticket is to fly from Pittsburgh to St. Louis in the evening. If you’re flexible enough to do this you can expect to save up to 28% on your trip compared to booking a flight in the afternoon.

Cheap Pittsburgh to St. Louis flights in June & July 2024

Find cheap flight options from Pittsburgh to St. Louis specifically for the months of June and July 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 3,050,429 searches. Prices were last updated on June 6, 2024.
The lowest fares we've come across on flights traveling from Pittsburgh to St. Louis in June and July 2024. More deals are always being added, so be sure to check back regularly.
Tue 7/26:40 amPIT - STL
1 stop8h 43mSpirit Airlines
Tue 7/1610:11 amSTL - PIT
1 stop13h 48mSpirit Airlines
Deal found 6/5$134
Thu 6/2010:38 pmPIT - STL
1 stop12h 02mFrontier
Mon 7/89:32 pmSTL - PIT
1 stop8h 43mFrontier
Deal found 6/4$168
Tue 6/1812:09 pmPIT - STL
1 stop22h 20mMultiple Airlines
Tue 6/2511:57 amSTL - PIT
1 stop10h 14mMultiple Airlines
Deal found 6/5$174
Tue 7/26:40 amPIT - STL
1 stop8h 43mMultiple Airlines
Tue 7/1610:11 amSTL - PIT
2 stops21h 31mMultiple Airlines
Deal found 6/5$176
Thu 7/117:15 pmPIT - STL
1 stop15h 10mFrontier
Mon 7/157:51 pmSTL - PIT
1 stop14h 16mFrontier
Deal found 6/6$177
Tue 7/26:40 amPIT - STL
1 stop8h 43mSpirit Airlines
Tue 7/1610:11 amSTL - PIT
3 stops23h 04mSpirit Airlines
Deal found 6/5$178
Thu 7/117:15 pmPIT - STL
1 stop15h 10mFrontier
Mon 7/159:32 pmSTL - PIT
1 stop8h 43mFrontier
Deal found 6/5$186
Tue 6/1812:09 pmPIT - STL
1 stop22h 20mMultiple Airlines
Thu 7/46:22 pmSTL - PIT
1 stop26h 03mMultiple Airlines
Deal found 6/4$189
Tue 6/189:28 pmPIT - STL
1 stop16h 37mSpirit Airlines
Tue 6/2511:57 amSTL - PIT
2 stops21h 48mSpirit Airlines
Deal found 6/5$190

Pittsburgh to St. Louis 2024 flight deals

Discover exclusive flight deals for travel between Pittsburgh and St. Louis in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 3,050,429 searches. Data last updated June 6, 2024.
The lowest fares we've come across on flights traveling from Pittsburgh to St. Louis in June and July 2024. More deals are always being added, so be sure to check back regularly.
Tue 7/26:40 amPIT - STL
1 stop8h 43mSpirit Airlines
Tue 7/1610:11 amSTL - PIT
1 stop13h 48mSpirit Airlines
Deal found 6/5$134
Thu 6/2010:38 pmPIT - STL
1 stop12h 02mFrontier
Mon 7/89:32 pmSTL - PIT
1 stop8h 43mFrontier
Deal found 6/4$168
Fri 9/136:23 pmPIT - STL
1 stop13h 44mSpirit Airlines
Sun 9/157:57 amSTL - PIT
1 stop27h 03mSpirit Airlines
Deal found 6/6$170
Tue 6/1812:09 pmPIT - STL
1 stop22h 20mMultiple Airlines
Tue 6/2511:57 amSTL - PIT
1 stop10h 14mMultiple Airlines
Deal found 6/5$174
Tue 7/26:40 amPIT - STL
1 stop8h 43mMultiple Airlines
Tue 7/1610:11 amSTL - PIT
2 stops21h 31mMultiple Airlines
Deal found 6/5$176
Thu 7/117:15 pmPIT - STL
1 stop15h 10mFrontier
Mon 7/157:51 pmSTL - PIT
1 stop14h 16mFrontier
Deal found 6/6$177
Tue 7/26:40 amPIT - STL
1 stop8h 43mSpirit Airlines
Tue 7/1610:11 amSTL - PIT
3 stops23h 04mSpirit Airlines
Deal found 6/5$178
Thu 7/117:15 pmPIT - STL
1 stop15h 10mFrontier
Mon 7/159:32 pmSTL - PIT
1 stop8h 43mFrontier
Deal found 6/5$186
Tue 6/1812:09 pmPIT - STL
1 stop22h 20mMultiple Airlines
Thu 7/46:22 pmSTL - PIT
1 stop26h 03mMultiple Airlines
Deal found 6/4$189

Pittsburgh to St. Louis flights leaving soon

Find last-minute flight options from Pittsburgh to St. Louis for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 3,050,429 searches. Data last updated June 6, 2024.
Have a look at some of the last-minute flights available departing from Pittsburgh to St. Louis. Tip: verify your flight details before completing your reservation.
Sun 6/167:49 pmPIT - STL
1 stop14h 40mMultiple Airlines
Tue 7/211:57 amSTL - PIT
1 stop7h 35mMultiple Airlines
Deal found 6/4$217
Thu 6/1310:09 pmPIT - STL
1 stop12h 31mMultiple Airlines
Sun 6/166:30 amSTL - PIT
1 stop4h 41mMultiple Airlines
Deal found 6/5$223
Sun 6/168:00 amPIT - STL
1 stop11h 05mSpirit Airlines
Tue 7/23:23 pmSTL - PIT
2 stops15h 05mSpirit Airlines
Deal found 6/4$245
Sun 6/168:00 amPIT - STL
1 stop11h 05mMultiple Airlines
Thu 7/412:15 pmSTL - PIT
3 stops20h 26mMultiple Airlines
Deal found 6/4$275
Sun 6/168:00 amPIT - STL
1 stop11h 05mMultiple Airlines
Wed 7/34:10 pmSTL - PIT
3 stops31h 24mMultiple Airlines
Deal found 6/4$284
Sun 6/168:00 amPIT - STL
1 stop11h 05mSpirit Airlines
Thu 7/46:22 pmSTL - PIT
2 stops21h 23mSpirit Airlines
Deal found 6/4$294
Sun 6/168:00 amPIT - STL
1 stop11h 05mSpirit Airlines
Tue 7/23:23 pmSTL - PIT
3 stops24h 01mSpirit Airlines
Deal found 6/4$303
Wed 6/125:23 pmPIT - STL
3 stops25h 05mSpirit Airlines
Thu 6/138:12 pmSTL - PIT
1 stop15h 40mSpirit Airlines
Deal found 6/4$305
Wed 6/125:23 pmPIT - STL
3 stops25h 05mSpirit Airlines
Thu 6/138:12 pmSTL - PIT
2 stops19h 12mSpirit Airlines
Deal found 6/4$315

One-way flights to St. Louis from Pittsburgh

Search for one-way flight options from Pittsburgh to St. Louis. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 3,050,429 searches. Data last updated June 6, 2024.
Some of the best available deals we've found on one-way flights from Pittsburgh to St. Louis. Users in need of a round-trip flight from Pittsburgh to St. Louis instead should update the search form at the top of page.
Sat 7/277:55 amPIT - STL
1 stop7h 24mFrontier
Deal found 6/5$80
Sat 7/275:00 amPIT - STL
2 stops10h 26mAmerican Airlines
Deal found 6/5$321

Find flights from Pittsburgh to St. Louis within your budget

Customize your flight search to find flights from Pittsburgh to St. Louis that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 3,050,429 searches. Data last updated June 6, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$134 - $318

Route

Depart

Return

Price

PittsburghLambert-St Louis

PIT - STL

PITSTL

Pittsburgh

Tue 7/2

1 stop8h 43m

Lambert-St Louis

Tue 7/16

1 stop13h 48m

$134

PittsburghLambert-St Louis

PIT - STL

PITSTL

Pittsburgh

Thu 6/20

1 stop12h 02m

Lambert-St Louis

Mon 7/8

1 stop8h 43m

$168

PittsburghLambert-St Louis

PIT - STL

PITSTL

Pittsburgh

Fri 9/13

1 stop13h 44m

Lambert-St Louis

Sun 9/15

1 stop27h 03m

$170

PittsburghLambert-St Louis

PIT - STL

PITSTL

Pittsburgh

Tue 6/18

1 stop22h 20m

Lambert-St Louis

Tue 6/25

1 stop10h 14m

$174

PittsburghLambert-St Louis

PIT - STL

PITSTL

Pittsburgh

Tue 7/2

1 stop8h 43m

Lambert-St Louis

Tue 7/16

2 stops21h 31m

$176

PittsburghLambert-St Louis

PIT - STL

PITSTL

Pittsburgh

Thu 7/11

1 stop15h 10m

Lambert-St Louis

Mon 7/15

1 stop14h 16m

$177

PittsburghLambert-St Louis

PIT - STL

PITSTL

Pittsburgh

Tue 7/2

1 stop8h 43m

Lambert-St Louis

Tue 7/16

3 stops23h 04m

$178

PittsburghLambert-St Louis

PIT - STL

PITSTL

Pittsburgh

Wed 6/19

1 stop4h 26m

Lambert-St Louis

Fri 7/5

1 stop9h 26m

$241

PittsburghLambert-St Louis

PIT - STL

PITSTL

Pittsburgh

Fri 6/21

1 stop4h 00m

Lambert-St Louis

Tue 7/2

1 stop3h 57m

$318

Flights are sorted by cheapest first

Deals found on 6/5

How far ahead should I book a flight from Pittsburgh to St. Louis?

Use this chart to determine the optimal time to book a round-trip flight from Pittsburgh to St. Louis. Price data was last updated on May 31, 2024.
Booking 83 days in advance of your planned departure date is, on average, the best time to get cheap flights from Pittsburgh to St. Louis. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
Search Deals

What is the cheapest day to fly from Pittsburgh to St. Louis?

Use this chart to determine the cheapest time to fly round-trip from Pittsburgh to St. Louis. Price data was last updated on June 2, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their Pittsburgh to St. Louis flight should consider departing on Thursday evenings when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
Search Deals

Best time to book a flight from Pittsburgh to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from Pittsburgh with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Temperature and rainfall in St. Louis by month

Plan your trip to St. Louis by taking into account the average temperature and rainfall totals by month.

STL

Temperature

32 - 80.6 °F

If weather is an important factor for your trip to St. Louis, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 32.0 F).

Reviews of airlines servicing St. Louis

Get insights into the airlines that provide service to St. Louis. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to St. Louis. Reviews last updated June 6, 2024.
Read through reviews of airlines operating flights from Pittsburgh to St. Louis, such as Frontier, American Airlines and Delta. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
8.1
Very good
9,222 reviews

Boarding

8.2

Food

7.3

Entertainment

7.3

Overall

8.1

Comfort

7.9

Crew

8.6

Reviews

1 / 10

Crew and airport staff were excellent. They accommodated my needs and were super professional and kind.

8.1
Very good
9,222 reviews
8.1
Very good
9,222 reviews

Boarding

8.2

Food

7.3

Entertainment

7.3

Overall

8.1

Comfort

7.9

Crew

8.6

Reviews

1 / 10

Crew and airport staff were excellent. They accommodated my needs and were super professional and kind.

8.0
Very good
10,368 reviews
8.1
Very good
9,222 reviews

Boarding

8.2

Food

7.3

Entertainment

7.3

Overall

8.1

Comfort

7.9

Crew

8.6

Reviews

1 / 10

Crew and airport staff were excellent. They accommodated my needs and were super professional and kind.

7.4
Good
10,696 reviews
8.1
Very good
9,222 reviews

Boarding

8.2

Food

7.3

Entertainment

7.3

Overall

8.1

Comfort

7.9

Crew

8.6

Reviews

1 / 10

Crew and airport staff were excellent. They accommodated my needs and were super professional and kind.

7.3
Good
14,227 reviews
8.1
Very good
9,222 reviews

Boarding

8.2

Food

7.3

Entertainment

7.3

Overall

8.1

Comfort

7.9

Crew

8.6

Reviews

1 / 10

Crew and airport staff were excellent. They accommodated my needs and were super professional and kind.

6.4
Okay
8,567 reviews
8.1
Very good
9,222 reviews

Boarding

8.2

Food

7.3

Entertainment

7.3

Overall

8.1

Comfort

7.9

Crew

8.6

Reviews

1 / 10

Crew and airport staff were excellent. They accommodated my needs and were super professional and kind.

Related info for your journey

Find useful and relevant information for your journey from Pittsburgh to St. Louis. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • What airports do I use to fly from Pittsburgh to St. Louis?

    You will need to book a flight from Pittsburgh to Lambert-St Louis if you want to fly from Pittsburgh to St. Louis. At least 4 different airlines have flights from Pittsburgh (PIT) to Lambert-St Louis (STL) on a regular basis. There is 1 flight to St. Louis from the Pittsburgh airport per day. If you manage to book one that is nonstop, then you can expect the flight time from PIT to STL to be around 4h 13m.

  • Can I find flights from Pittsburgh to St. Louis for under $200 on Cheapflights?

    Yes, there are multiple flights from Pittsburgh to St. Louis for under $200. The cheapest flight booked recently is on Spirit Airlines for just $134, but on average you can expect to pay $194.

  • Are there last-minute flights available from Pittsburgh to St. Louis for under $300?

    There are currently 20+ open flights from Pittsburgh to St. Louis within the next 7 days for less than $300.

  • What are the cheapest airlines flying from Pittsburgh to St. Louis round-trip?

    Spirit Airlines, at $134, was found to be the cheapest airline from Pittsburgh to St. Louis.Alternate airlines to your destination round-trip include Frontier and American Airlines. Users have found that Spirit Airlines is 59% cheaper than the other options available to this destination.

  • What does PIT to STL mean?

    These are just IATA (International Air Transport Association) codes. They are used in aviation to identify and differentiate airports. That’s why a Pittsburgh Airport to Lambert-St Louis Airport flight would often be abbreviated as a PIT to STL flight.

  • Can I find deals for flights from Pittsburgh to St. Louis that include extra baggage allowance?

    The amount of baggage you can bring on your Pittsburgh to St. Louis flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Pittsburgh to St. Louis with specific airlines?

    Yes, Cheapflights allows you to browse and filter Pittsburgh to St. Louis flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • Can I find deals for flights from Pittsburgh to St. Louis that include hotel bookings?

    Yes. In addition to deals on Pittsburgh to St. Louis flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Pittsburgh to St. Louis?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Pittsburgh to St. Louis.

  • Can I find deals for business class flights from Pittsburgh to St. Louis?

    Yes. Cheapflights offers flight deals from Pittsburgh to St. Louis by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • Can I find deals for flights from Pittsburgh to St. Louis that allow pets onboard?

    Many airlines flying from Pittsburgh to St. Louis offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Pittsburgh to St. Louis?

    Yes, you can often find last-minute deals on Pittsburgh to St. Louis flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the Pittsburgh to St. Louis flight deals updated?

    The Pittsburgh to St. Louis flight deals you see on this page were last updated on 6/6.

  • What are the most popular airlines that fly from Pittsburgh to St. Louis?

  • What is the cheapest month to book a flight from Pittsburgh to St. Louis?

    Currently, September is the cheapest month in which you can book a flight from Pittsburgh to St. Louis (average of $318). Flying from Pittsburgh to St. Louis in July is currently the most expensive (average of $365). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for Pittsburgh to St. Louis
See prices for flight routes from nearby airports that may be better suited for you.

Top 4 airlines flying from Pittsburgh to St. Louis

Discover the top 4 airlines that operate flights from Pittsburgh to St. Louis. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 3,050,429 searches. Data last updated June 6, 2024.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$147Average$266FlexibilityNo cancel feeOn-time65%
American AirlinesCheapest$223Average$296FlexibilityNo cancel feeOn-time71%
DeltaCheapest$248Average$360FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$286Average$414FlexibilityNo cancel feeOn-time69%

Search flights from Pittsburgh to St. Louis by cabin class

Find flights from Pittsburgh to St. Louis, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Hourly flight availability from Pittsburgh to St. Louis

Find hourly flight availability from Pittsburgh to St. Louis. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 6, 2024.
0%of flight departuresEarly morningMidnight to 6 am
100%of flight departuresMorning6 am to noon
0%of flight departuresAfternoonNoon to 6 pm
0%of flight departuresEvening6 pm to midnight
Midnight
6 AM
Noon
6 PM

Weekly flight availability from Pittsburgh to St. Louis

Explore weekly flight availability from Pittsburgh to St. Louis. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated June 6, 2024.
Sunday2daily flights
Monday1daily flight
Tuesday1daily flight
Wednesday1daily flight
Thursday1daily flight
Friday1daily flight
Saturday1daily flight
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