$383 Cheap Flights from Pittsburgh (PIT) to Castries (SLU)

View $383 flight on Wed, Jan 14, 2026Opens in a new window

Popular airlines from Pittsburgh Intl. Airport (PIT) to George F. L. Charles Airport (SLU)

Cheap Flights from Pittsburgh to Castries (PIT-SLU)

Prices were available within the past 7 days and start at $383 for one-way flights and $961 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

JetBlue Airways
Fri, Dec 12 - Fri, Dec 19
PIT
Pittsburgh
SLU
Castries
$961 Roundtrip, found 3 days ago
$961
Roundtrip
found 3 days ago
Select JetBlue Airways flight, departing Fri, Dec 12 from Pittsburgh to Castries, returning Fri, Dec 19, priced at $961 found 3 days ago

Find the cheapest month to fly from Pittsburgh (PIT) to Castries (SLU)

January is typically the cheapest month to fly

From $393 - $703 per traveler.

Alternative airports near Castries

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

Select flight to Hewanorra Intl. UVF. Cheapest option available. Average driving time to city center is 53 minutes. Flights from $529
UVF
Hewanorra Intl.
Cheapest
Average driving time to city center53 min
Flights from $529

Frequently asked questions

How much does a flight from Pittsburgh Intl. Airport (PIT) to George F. L. Charles Airport (SLU) cost?
Grab a cheap one-way flight from $383 or cheap return flight from $961 from Pittsburgh Intl. Airport (PIT) to George F. L. Charles Airport (SLU) 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 Pittsburgh Intl. Airport (PIT) to George F. L. Charles Airport (SLU)?
The cheapest month to fly from PIT to SLU is December, when there's less demand. Off-peak months are typically when airlines offer lower prices between these airports.
What is the cheapest airline that flies from Pittsburgh Intl. Airport (PIT) to George F. L. Charles Airport (SLU)?
To find the cheapest airline flying from PIT to SLU, use Expedia's filter tool. Customize your search based on what's important to you, such as preferred carriers and flight duration. You can then sort your results by "Price (lowest to highest)" to list the most affordable options first.
How many flights per day from Pittsburgh Intl. Airport (PIT) to George F. L. Charles Airport (SLU)?
You'll need to book a flight with a layover if you're traveling from Pittsburgh Intl. Airport (PIT) to George F. L. Charles Airport (SLU). Direct flights don't operate daily on this route. However, simply filter your search to include one or more stops to find an option that works for you.
What day of the week has the most flights from PIT to SLU?
You'll usually find Tuesday the quietest day for flights, while Fridays are often the busiest.* However this can change from season to season and during peak travel times or public holidays.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Pittsburgh Intl. Airport (PIT) to George F. L. Charles Airport (SLU)?
Select a flight from Pittsburgh Intl. Airport (PIT) to George F. L. Charles Airport (SLU) that takes off before 3 PM to reduce the likelihood of delays and cancellations. Departures after this hour are on average 22% more likely to be canceled.**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 Pittsburgh Intl. Airport (PIT) to George F. L. Charles Airport (SLU) last-minute?
Holding off until right before your break to book a flight from PIT to SLU generally means paying more. While it's possible to find some last-minute deals, they aren't always guaranteed. Keep your travel plans flexible to boost your chances of landing a bargain.
Is it cheaper to book a PIT to SLU flight and hotel package?
Opting for a PIT to SLU flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your travels in one place. Choose from our wide range of accommodations and then add car rentals, activities and flights to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Pittsburgh Intl. Airport (PIT) to George F. L. Charles Airport (SLU)?
Usually, it's possible to cancel or reschedule your PIT to SLU flight. However, if it's been more than 24 hours since booking, additional fees 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
Pittsburgh Intl.
Destination airport
George F. L. Charles
Roundtrip price
$960
Distance
2167 mi

Book with confidence

Pittsburgh to Castries Flights

The cheapest times to fly from Pittsburgh to Castries

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 Pittsburgh to Castries are during the month of December. You can find some of the cheapest flights from Pittsburgh to Castries with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Pittsburgh to Castries

Sunday is one of the best days to book for cheap flights from Pittsburgh to Castries: 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 Pittsburgh to Castries

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 Pittsburgh to Castries in 2025. You can also book with separate airlines for your outbound and return journeys, from $383 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 Pittsburgh to Castries 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 Pittsburgh to Castries 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.

 

Pittsburgh to Castries Flights

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*Available to One Key members.