HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news

Cheap flights from Pittsburgh to St. Louis (PIT - STL) from $139

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 6/12. 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 7 — jun 141
From?
To?
fre 6/7
fre 6/14
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

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 Thursday 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 juni 2, 2024.

Popular in

May

Cheapest in

December

Round-trip from

$319

One-way from

$139
High demand for flights, 22% potential price rise
Search Deals
Best time to find cheap flights, 17% potential price drop
Search Deals
From Pittsburgh to Lambert-St Louis
Search Deals
One-way flight from Pittsburgh to Lambert-St Louis
Search Deals

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 at noon.

Cheap American Airlines flights from Pittsburgh to St. Louis

Explore cheap flight options specifically provided by American Airlines for the route between Pittsburgh and St. Louis. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,810,401 searches. Data last updated juni 2, 2024.
Take a look at some of the lowest-priced American Airlines flights heading from Pittsburgh to St. Louis. It's recommended that users confirm their flight details before booking.
tis 10/81:35 pmPIT - STL
1 stop7h 32mAmerican Airlines
sön 10/139:19 amSTL - PIT
1 stop4h 30mAmerican Airlines
Deal found 6/1$266
fre 7/2611:40 amPIT - STL
1 stop5h 32mAmerican Airlines
sön 7/286:04 amSTL - PIT
1 stop3h 40mAmerican Airlines
Deal found 6/1$288
mån 6/1712:47 pmPIT - STL
1 stop5h 04mAmerican Airlines
ons 6/194:48 pmSTL - PIT
1 stop4h 18mAmerican Airlines
Deal found 6/1$328

Cheap Spirit Airlines flights from Pittsburgh to St. Louis

Explore cheap flight options specifically provided by Spirit Airlines for the route between Pittsburgh and St. Louis. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,810,401 searches. Data last updated juni 2, 2024.
Take a gander at the lowest prices we've found on Spirit Airlines flights from Pittsburgh to St. Louis. Check back soon if you're not seeing flights that suit your needs.
ons 7/1710:16 pmPIT - STL
1 stop20h 13mSpirit Airlines
sön 7/217:24 pmSTL - PIT
1 stop24h 38mSpirit Airlines
Deal found 6/1$183
fre 9/135:12 amPIT - STL
1 stop18h 02mSpirit Airlines
sön 9/156:24 pmSTL - PIT
1 stop26h 01mSpirit Airlines
Deal found 6/1$184
fre 6/218:00 amPIT - STL
1 stop27h 34mSpirit Airlines
sön 6/236:55 pmSTL - PIT
1 stop16h 57mSpirit Airlines
Deal found 6/1$211
lör 6/226:40 amPIT - STL
1 stop11h 48mSpirit Airlines
lör 6/296:22 pmSTL - PIT
1 stop6h 12mSpirit Airlines
Deal found 5/31$222
ons 6/1210:25 pmPIT - STL
1 stop20h 03mSpirit Airlines
sön 6/166:55 pmSTL - PIT
1 stop21h 21mSpirit Airlines
Deal found 6/1$229
mån 6/1711:37 amPIT - STL
2 stops24h 20mSpirit Airlines
ons 6/191:55 pmSTL - PIT
2 stops14h 20mSpirit Airlines
Deal found 6/1$235
ons 6/1210:25 pmPIT - STL
2 stops21h 57mSpirit Airlines
sön 6/166:55 pmSTL - PIT
2 stops17h 10mSpirit Airlines
Deal found 6/1$243
ons 6/1210:25 pmPIT - STL
2 stops21h 57mSpirit Airlines
sön 6/166:55 pmSTL - PIT
1 stop16h 57mSpirit Airlines
Deal found 6/1$245
fre 6/2111:37 amPIT - STL
2 stops23h 57mSpirit Airlines
sön 6/236:55 pmSTL - PIT
1 stop16h 57mSpirit Airlines
Deal found 6/1$250

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 2,810,401 searches. Prices were last updated on juni 2, 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.
tis 6/1812:09 pmPIT - STL
1 stop22h 20mFrontier
ons 7/248:02 pmSTL - PIT
1 stop21h 14mFrontier
Deal found 6/1$158
tis 6/1812:09 pmPIT - STL
1 stop22h 20mFrontier
mån 6/248:22 pmSTL - PIT
1 stop13h 45mFrontier
Deal found 6/1$168
tis 6/1112:09 pmPIT - STL
1 stop22h 20mMultiple Airlines
sön 6/235:22 pmSTL - PIT
1 stop6h 12mMultiple Airlines
Deal found 5/31$179
fre 6/218:00 amPIT - STL
1 stop27h 34mSpirit Airlines
sön 6/236:55 pmSTL - PIT
1 stop16h 57mSpirit Airlines
Deal found 6/1$211
lör 6/226:40 amPIT - STL
1 stop11h 48mSpirit Airlines
lör 6/296:22 pmSTL - PIT
1 stop6h 12mSpirit Airlines
Deal found 5/31$222
ons 6/1210:25 pmPIT - STL
1 stop20h 03mSpirit Airlines
sön 6/166:55 pmSTL - PIT
1 stop21h 21mSpirit Airlines
Deal found 6/1$229
mån 6/1711:37 amPIT - STL
2 stops24h 20mSpirit Airlines
ons 6/191:55 pmSTL - PIT
2 stops14h 20mSpirit Airlines
Deal found 6/1$235
tis 6/115:23 pmPIT - STL
3 stops43h 22mMultiple Airlines
sön 6/236:55 pmSTL - PIT
1 stop16h 57mMultiple Airlines
Deal found 5/31$238
ons 6/1210:25 pmPIT - STL
2 stops21h 57mSpirit Airlines
sön 6/166:55 pmSTL - PIT
2 stops17h 10mSpirit Airlines
Deal found 6/1$243

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 2,810,401 searches. Data last updated juni 2, 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.
tis 6/1812:09 pmPIT - STL
1 stop22h 20mFrontier
ons 7/248:02 pmSTL - PIT
1 stop21h 14mFrontier
Deal found 6/1$158
tis 6/1812:09 pmPIT - STL
1 stop22h 20mFrontier
mån 6/248:22 pmSTL - PIT
1 stop13h 45mFrontier
Deal found 6/1$168
tis 6/1112:09 pmPIT - STL
1 stop22h 20mMultiple Airlines
sön 6/235:22 pmSTL - PIT
1 stop6h 12mMultiple Airlines
Deal found 5/31$179
ons 7/1710:16 pmPIT - STL
1 stop20h 13mSpirit Airlines
sön 7/217:24 pmSTL - PIT
1 stop24h 38mSpirit Airlines
Deal found 6/1$183
fre 9/135:12 amPIT - STL
1 stop18h 02mSpirit Airlines
sön 9/156:24 pmSTL - PIT
1 stop26h 01mSpirit Airlines
Deal found 6/1$184
tors 7/117:15 pmPIT - STL
1 stop15h 10mFrontier
mån 7/159:32 pmSTL - PIT
1 stop8h 43mFrontier
Deal found 6/1$186
fre 6/218:00 amPIT - STL
1 stop27h 34mSpirit Airlines
sön 6/236:55 pmSTL - PIT
1 stop16h 57mSpirit Airlines
Deal found 6/1$211
lör 6/226:40 amPIT - STL
1 stop11h 48mSpirit Airlines
lör 6/296:22 pmSTL - PIT
1 stop6h 12mSpirit Airlines
Deal found 5/31$222
ons 6/1210:25 pmPIT - STL
1 stop20h 03mSpirit Airlines
sön 6/166:55 pmSTL - PIT
1 stop21h 21mSpirit Airlines
Deal found 6/1$229

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 2,810,401 searches. Data last updated juni 2, 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.
tis 6/1112:09 pmPIT - STL
1 stop22h 20mMultiple Airlines
sön 6/235:22 pmSTL - PIT
1 stop6h 12mMultiple Airlines
Deal found 5/31$179
ons 6/1210:25 pmPIT - STL
1 stop20h 03mSpirit Airlines
sön 6/166:55 pmSTL - PIT
1 stop21h 21mSpirit Airlines
Deal found 6/1$229
tis 6/115:23 pmPIT - STL
3 stops43h 22mMultiple Airlines
sön 6/236:55 pmSTL - PIT
1 stop16h 57mMultiple Airlines
Deal found 5/31$238
ons 6/1210:25 pmPIT - STL
2 stops21h 57mSpirit Airlines
sön 6/166:55 pmSTL - PIT
2 stops17h 10mSpirit Airlines
Deal found 6/1$243
ons 6/1210:25 pmPIT - STL
2 stops21h 57mSpirit Airlines
sön 6/166:55 pmSTL - PIT
1 stop16h 57mSpirit Airlines
Deal found 6/1$245
tis 6/115:23 pmPIT - STL
3 stops43h 22mMultiple Airlines
sön 6/235:22 pmSTL - PIT
2 stops22h 23mMultiple Airlines
Deal found 5/31$250
tis 6/115:23 pmPIT - STL
3 stops43h 22mMultiple Airlines
sön 6/236:55 pmSTL - PIT
3 stops26h 12mMultiple Airlines
Deal found 5/31$258
tis 6/116:40 amPIT - STL
1 stop8h 43mSpirit Airlines
sön 6/235:22 pmSTL - PIT
2 stops22h 23mSpirit Airlines
Deal found 5/31$267
ons 6/127:29 pmPIT - STL
3 stops21h 01mMultiple Airlines
sön 6/166:55 pmSTL - PIT
2 stops17h 10mMultiple Airlines
Deal found 6/1$278

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 2,810,401 searches. Data last updated juni 2, 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.
ons 6/1210:25 pmPIT - STL
1 stop20h 03mSpirit Airlines
Deal found 6/1$139
lör 6/85:07 amPIT - STL
1 stop4h 25mAmerican Airlines
Deal found 5/31$233
lör 6/83:05 pmPIT - STL
2 stops7h 57mAmerican Airlines
Deal found 5/31$285

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 2,810,401 searches. Data last updated juni 2, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$158 - $421

Route

Depart

Return

Price

PittsburghLambert-St Louis

PIT - STL

PITSTL

Pittsburgh

tis 6/18

1 stop22h 20m

Lambert-St Louis

ons 7/24

1 stop21h 14m

$158

PittsburghLambert-St Louis

PIT - STL

PITSTL

Pittsburgh

tis 6/18

1 stop22h 20m

Lambert-St Louis

mån 6/24

1 stop13h 45m

$168

PittsburghLambert-St Louis

PIT - STL

PITSTL

Pittsburgh

ons 7/17

1 stop20h 13m

Lambert-St Louis

sön 7/21

1 stop24h 38m

$183

PittsburghLambert-St Louis

PIT - STL

PITSTL

Pittsburgh

fre 9/13

1 stop18h 02m

Lambert-St Louis

sön 9/15

1 stop26h 01m

$184

PittsburghLambert-St Louis

PIT - STL

PITSTL

Pittsburgh

tors 7/11

1 stop15h 10m

Lambert-St Louis

mån 7/15

1 stop8h 43m

$186

PittsburghLambert-St Louis

PIT - STL

PITSTL

Pittsburgh

fre 6/21

1 stop27h 34m

Lambert-St Louis

sön 6/23

1 stop16h 57m

$211

PittsburghLambert-St Louis

PIT - STL

PITSTL

Pittsburgh

tis 10/8

1 stop7h 32m

Lambert-St Louis

sön 10/13

1 stop4h 30m

$266

PittsburghLambert-St Louis

PIT - STL

PITSTL

Pittsburgh

ons 6/12

3 stops21h 01m

Lambert-St Louis

sön 6/16

2 stops17h 10m

$278

PittsburghLambert-St Louis

PIT - STL

PITSTL

Pittsburgh

tors 8/22

1 stop4h 07m

Lambert-St Louis

tors 8/22

1 stop11h 10m

$421

Flights are sorted by cheapest first

Deals found on 6/1

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 May 26, 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

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 juni 2, 2024.
Read through reviews of airlines operating flights from Pittsburgh to St. Louis, such as American Airlines, Spirit Airlines and United Airlines. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
10,755 reviews
Check prices

Overall

7.4

Comfort

7.2

Food

6.7

Crew

8.1

Boarding

7.7

Entertainment

7.1

Reviews

1 / 10

You canceled my original flight morning of flight. The new flight had 3 connections and seat were not comparable. I book early to get the aisle seats for my height. When I tried to talk to a staff member at desk in Denver, she was rude and said nothing she could do. The seat was in boarding group 4, made me check my bag. When I got on the flight, there was clearly over head space available. When I mentioned that there was space available, no response. It was a frustrating trip

United Airlines
7.4
Good
10,755 reviews
United Airlines
7.4
Good
10,755 reviews
Check prices

Overall

7.4

Comfort

7.2

Food

6.7

Crew

8.1

Boarding

7.7

Entertainment

7.1

Reviews

1 / 10

You canceled my original flight morning of flight. The new flight had 3 connections and seat were not comparable. I book early to get the aisle seats for my height. When I tried to talk to a staff member at desk in Denver, she was rude and said nothing she could do. The seat was in boarding group 4, made me check my bag. When I got on the flight, there was clearly over head space available. When I mentioned that there was space available, no response. It was a frustrating trip

American Airlines
7.3
Good
14,260 reviews
United Airlines
7.4
Good
10,755 reviews
Check prices

Overall

7.4

Comfort

7.2

Food

6.7

Crew

8.1

Boarding

7.7

Entertainment

7.1

Reviews

1 / 10

You canceled my original flight morning of flight. The new flight had 3 connections and seat were not comparable. I book early to get the aisle seats for my height. When I tried to talk to a staff member at desk in Denver, she was rude and said nothing she could do. The seat was in boarding group 4, made me check my bag. When I got on the flight, there was clearly over head space available. When I mentioned that there was space available, no response. It was a frustrating trip

Spirit Airlines
6.4
Okay
8,602 reviews
United Airlines
7.4
Good
10,755 reviews
Check prices

Overall

7.4

Comfort

7.2

Food

6.7

Crew

8.1

Boarding

7.7

Entertainment

7.1

Reviews

1 / 10

You canceled my original flight morning of flight. The new flight had 3 connections and seat were not comparable. I book early to get the aisle seats for my height. When I tried to talk to a staff member at desk in Denver, she was rude and said nothing she could do. The seat was in boarding group 4, made me check my bag. When I got on the flight, there was clearly over head space available. When I mentioned that there was space available, no response. It was a frustrating trip

Frontier
6.2
Okay
4,006 reviews
United Airlines
7.4
Good
10,755 reviews
Check prices

Overall

7.4

Comfort

7.2

Food

6.7

Crew

8.1

Boarding

7.7

Entertainment

7.1

Reviews

1 / 10

You canceled my original flight morning of flight. The new flight had 3 connections and seat were not comparable. I book early to get the aisle seats for my height. When I tried to talk to a staff member at desk in Denver, she was rude and said nothing she could do. The seat was in boarding group 4, made me check my bag. When I got on the flight, there was clearly over head space available. When I mentioned that there was space available, no response. It was a frustrating trip

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 11m.

  • 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 Frontier for just $158, but on average you can expect to pay $233.

  • Are there last-minute flights available from Pittsburgh to St. Louis for under $200?

    There are currently 20+ open flights from Pittsburgh to St. Louis within the next 7 days for less than $200.

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

    Frontier, at $158, was found to be the cheapest airline from Pittsburgh to St. Louis.Alternate airlines to your destination round-trip include Spirit Airlines and American Airlines. Users have found that Frontier is 51% 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 6/1.

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

    American Airlines, Delta and Spirit Airlines are the most popular airlines when flying 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 $319). Flying from Pittsburgh to St. Louis in July is currently the most expensive (average of $366). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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

LaGuardia to St. Louis flights
LaGuardia to Kansas City flights
John F Kennedy Intl to Kansas City flights
Newark to St. Louis flights
John F Kennedy Intl to St. Louis flights
Dulles Intl to St. Louis flights
Newark to Kansas City flights
Reagan-National to St. Louis flights
Reagan-National to Kansas City flights
Dulles Intl to Kansas City flights
Philadelphia to Kansas City flights
Philadelphia to St. Louis flights
Newark to Springfield flights
John F Kennedy Intl to Springfield flights
Dulles Intl to Springfield flights
LaGuardia to Springfield flights
Reagan-National to Springfield flights
Pittsburgh to Kansas City flights
Philadelphia to Springfield flights
Allentown to St. Louis flights
Harrisburg to Kansas City flights
Harrisburg to Springfield flights
Pittsburgh to Springfield flights
Allentown to Kansas City flights
Allentown to Springfield flights
Harrisburg to St. Louis flights
John F Kennedy Intl to Columbia flights
Newark to Columbia flights
Dulles Intl to Columbia flights
LaGuardia to Columbia flights
Scranton to Kansas City flights
Philadelphia to Columbia flights
Scranton to St. Louis flights
State College to St. Louis flights
Reagan-National to Columbia flights
Elmira to St. Louis flights
Elmira to Kansas City flights
Reagan-National to Joplin flights
Newark to Joplin flights
Dulles Intl to Branson flights
State College to Kansas City flights
Newark to Quincy flights
Latrobe to Kansas City flights
LaGuardia to Joplin flights
Scranton to Springfield flights
Philadelphia to Branson flights
Dulles Intl to Joplin flights
Erie to St. Louis flights
Philadelphia to Joplin flights

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 2,810,401 searches. Data last updated juni 2, 2024.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$147Average$266FlexibilityNo cancel feeOn-time65%
Search Spirit Airlines flights
American AirlinesCheapest$222Average$296FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
DeltaCheapest$246Average$347FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
United AirlinesCheapest$286Average$414FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Atlanta to San Diego flights
USA to Dubai flights
Rochester, New York to New York flights
New York to Lisbon flights
Houston to Boston flights
Newark Airport to London flights
New Orleans to Los Angeles flights
Boston to Philadelphia flights
Atlanta to Chicago flights
Las Vegas to Denver flights
Miami to Tampa flights
Pittsburgh to London Stansted Airport flights

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.
First Class
Business Class
Prem Econ Class
Economy 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 juni 2, 2024.
1%of flight departuresEarly morningMidnight to 6 am
83%of flight departuresMorning6 am to noon
16%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 juni 2, 2024.
Sunday2daily flights
Monday1daily flight
Tuesday1daily flight
Wednesday1daily flight
Thursday1daily flight
Friday1daily flight
Saturday1daily flight

Book a flight to one of these trending destinations

User searches for flights to these destinations increased 20% or more in the past 90 days compared to other destinations
Flights to Laayoune Hassan I
Flights to Virac
Flights to Figari-Sud Corse
Flights to Edremit/Korfez
Flights to Rhinelander Oneida County
Flights to Girona Costa Brava
Flights to Brainerd Crow Wing County
Flights to Parikia Paros
Flights to Cortez Montezuma County
Flights to Miyakojima Hirara
Flights to Zadar
Flights to Trapani Birgi
Flights to Provincetown
Flights to Oran Es Senia
Flights to Constanţa Mihail Kogalniceanu
Flights to Vava'u Lupepau'U
Flights to Urumqi
Flights to Hakodate
Flights to Naxos
Flights to Dalaman
Flights to Hyannis Barnstable
Flights to Devils Lake
Flights to Bastia Poretta
Flights to Karpathos

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Pittsburgh to St. Louis?

Deals for Pittsburgh to St. Louis flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from Pittsburgh to St. Louis?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to St. Louis from Pittsburgh.

Can Cheapflights find flights from Pittsburgh to St. Louis with no change fees?

Need flexible booking options for your flight to St. Louis from Pittsburgh? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from Pittsburgh to St. Louis become cheaper?

Not ready to book yet? You can track prices for flights from Pittsburgh to St. Louis on Cheapflights with our Price Alert feature and get notified when better prices are available.

100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
View all available airlines