$440 Cheap Flights from St. Louis (STL) to Pisa (PSA)

View $440 flight on Sun, Jan 18, 2026Opens in a new window

Popular airlines from St. Louis Lambert Intl. Airport (STL) to Galileo Galilei Airport (PSA)

Cheap Flights from St. Louis to Pisa (STL-PSA)

Prices were available within the past 7 days and start at $440 for one-way flights and $561 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Scandinavian Airlines
Sat, Apr 18 - Fri, May 1
STL
St. Louis
PSA
Pisa
$561 Roundtrip, found 3 days ago
$561
Roundtrip
found 3 days ago
Select Scandinavian Airlines flight, departing Sat, Apr 18 from St. Louis to Pisa, returning Fri, May 1, priced at $561 found 3 days ago
British Airways
Sun, Feb 15 - Tue, Mar 3
STL
St. Louis
PSA
Pisa
$575 Roundtrip, found 3 days ago
$575
Roundtrip
found 3 days ago
Select British Airways flight, departing Sun, Feb 15 from St. Louis to Pisa, returning Tue, Mar 3, priced at $575 found 3 days ago
British Airways
Wed, Feb 18 - Tue, Mar 3
STL
St. Louis
PSA
Pisa
$575 Roundtrip, found 2 days ago
$575
Roundtrip
found 2 days ago
Select British Airways flight, departing Wed, Feb 18 from St. Louis to Pisa, returning Tue, Mar 3, priced at $575 found 2 days ago
British Airways
Mon, Feb 16 - Tue, Mar 3
STL
St. Louis
PSA
Pisa
$581 Roundtrip, found 2 days ago
$581
Roundtrip
found 2 days ago
Select British Airways flight, departing Mon, Feb 16 from St. Louis to Pisa, returning Tue, Mar 3, priced at $581 found 2 days ago
British Airways
Sun, Mar 8 - Thu, Mar 26
STL
St. Louis
PSA
Pisa
$581 Roundtrip, found 3 days ago
$581
Roundtrip
found 3 days ago
Select British Airways flight, departing Sun, Mar 8 from St. Louis to Pisa, returning Thu, Mar 26, priced at $581 found 3 days ago
KLM
Wed, Feb 11 - Mon, Feb 23
STL
St. Louis
PSA
Pisa
$599 Roundtrip, found 3 days ago
$599
Roundtrip
found 3 days ago
Select KLM flight, departing Wed, Feb 11 from St. Louis to Pisa, returning Mon, Feb 23, priced at $599 found 3 days ago
KLM
Thu, Nov 27 - Fri, Dec 12
STL
St. Louis
PSA
Pisa
$600 Roundtrip, found 2 days ago
$600
Roundtrip
found 2 days ago
Select KLM flight, departing Thu, Nov 27 from St. Louis to Pisa, returning Fri, Dec 12, priced at $600 found 2 days ago
American Airlines
Sat, Mar 21 - Sun, Mar 29
STL
St. Louis
PSA
Pisa
$601 Roundtrip, found 5 days ago
$601
Roundtrip
found 5 days ago
Select American Airlines flight, departing Sat, Mar 21 from St. Louis to Pisa, returning Sun, Mar 29, priced at $601 found 5 days ago
American Airlines
Sat, Mar 21 - Sun, Mar 29
STL
St. Louis
PSA
Pisa
$603 Roundtrip, found 5 days ago
$603
Roundtrip
found 5 days ago
Select American Airlines flight, departing Sat, Mar 21 from St. Louis to Pisa, returning Sun, Mar 29, priced at $603 found 5 days ago
Delta
Sat, Feb 28 - Mon, Mar 9
STL
St. Louis
PSA
Pisa
$654 Roundtrip, found 3 days ago
$654
Roundtrip
found 3 days ago
Select Delta flight, departing Sat, Feb 28 from St. Louis to Pisa, returning Mon, Mar 9, priced at $654 found 3 days ago

Alternative airports near Pisa

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Galileo Galilei PSA. Cheapest and Closest option available. Average driving time to city center is 7 minutes. Flights from $837
PSA
Galileo Galilei
CheapestClosest
Average driving time to city center7 min
Flights from $837

Frequently asked questions

How much does a flight from Lambert-St. Louis Intl. Airport (STL) to Galileo Galilei Airport (PSA) cost?
Secure a cheap one-way flight from $440 or cheap return flight from $561 from Lambert-St. Louis Intl. Airport (STL) to Galileo Galilei Airport (PSA) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Lambert-St. Louis Intl. Airport (STL) to Galileo Galilei Airport (PSA)?
April is the cheapest month to fly from STL to PSA. Traveling during quieter months is often the key to scoring lower fares.
What is the cheapest airline that flies from Lambert-St. Louis Intl. Airport (STL) to Galileo Galilei Airport (PSA)?
To find the cheapest airline that'll fly you from STL to PSA, use Expedia's filter tool. Tailor your search based on your travel needs, such as preferred carriers and flight duration. You can then sort your results by "Price (lowest to highest)" to discover the cheapest flight right away.
How many flights per day from Lambert-St. Louis Intl. Airport (STL) to Galileo Galilei Airport (PSA)?
You'll need to catch a flight with a layover when traveling from Lambert-St. Louis Intl. Airport (STL) to Galileo Galilei Airport (PSA). Direct flights don't operate daily on this route. However, just filter your search to include one or two stops to discover an option that works for you.
What day of the week has the most flights from STL to PSA?
Generally you'll find the widest variety of flight choices on a Friday. Tuesdays are often the quietest.* However, this can vary depending on the time of year, airline and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Lambert-St. Louis Intl. Airport (STL) to Galileo Galilei Airport (PSA)?
Choose a flight from Lambert-St. Louis Intl. Airport (STL) to Galileo Galilei Airport (PSA) that takes off before 3 PM to reduce the likelihood of delays. Departures after this time have a 22% higher chance of being canceled, on average.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Lambert-St. Louis Intl. Airport (STL) to Galileo Galilei Airport (PSA) last-minute?
Waiting until just before your departure to book your flight from STL to PSA often results in higher prices. Although you may find some last-minute offers, they're not always guaranteed. Be flexible with your itinerary for the best chance of getting a bargain.
Is it cheaper to book a STL to PSA flight and hotel package?
Compared with arranging hotels and flights separately, booking a STL to PSA flight and hotel package with Expedia could result in significant savings. Better still, having everything in one place takes the hassle out of travel planning. Simply secure your flights and choose from our wide range of hotels, then personalize your trip with extras like activities and car rentals.
Can I cancel or change the date of my flight from Lambert-St. Louis Intl. Airport (STL) to Galileo Galilei Airport (PSA)?
Typically, it's possible to cancel or reschedule your STL to PSA flight. However, if it's been more than 24 hours since booking, additional charges may apply. Check your airline's policies in your itinerary to see what changes are possible and if any costs are involved. You'll also find further details on our Customer Service portal.

Travel information

Origin airport
Lambert-St. Louis Intl.
Destination airport
Galileo Galilei
Airlines serving
Aer Lingus, American Airlines, British Airways, Lufthansa, Scandinavian Airlines, United
Roundtrip price
$561
Distance
4899 mi

Book with confidence

St. Louis to Pisa Flights

The cheapest times to fly from St. Louis to Pisa

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from St. Louis to Pisa are during the month of April. You can find some of the cheapest flights from St. Louis to Pisa with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from St. Louis to Pisa

Sunday is one of the best days to book for cheap flights from St. Louis to Pisa: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from St. Louis to Pisa

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from St. Louis to Pisa in 2025. You can also book with separate airlines for your outbound and return journeys, from $440 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap St. Louis to Pisa flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your St. Louis to Pisa airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

St. Louis to Pisa Flights

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*Available to One Key members.