$641 Cheap Flights from St. Louis (STL) to DuBois (DUJ)

View $641 flight on Wed, Oct 22, 2025Opens in a new window

Popular airlines from St. Louis Lambert Intl. Airport (STL) to DuBois, PA (DUJ-DuBois Regional)

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Cheap Flights from St. Louis to DuBois (STL-DUJ)

Prices were available within the past 7 days and start at $641 for one-way flights and for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Flights from St. Louis (STL) to DuBois (DUJ)
Origin airport
Lambert-St. Louis Intl.
Destination airport
DuBois Regional
Distance
630 mi

St. Louis to DuBois Flights

The cheapest times to fly from St. Louis to DuBois

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

 

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

Sunday is one of the best days to book for cheap flights from St. Louis to DuBois: 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 DuBois

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 DuBois in 2025. You can also book with separate airlines for your outbound and return journeys, from $641 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 DuBois 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 DuBois 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.

 

Frequently asked questions

How much does a flight from Lambert-St. Louis Intl. Airport (STL) to DuBois Regional Airport (DUJ) cost?
Lock in a cheap one-way flight from $641 or cheap return flight from Lambert-St. Louis Intl. Airport (STL) to DuBois Regional Airport (DUJ) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from Lambert-St. Louis Intl. Airport (STL) to DuBois Regional Airport (DUJ)?
The cheapest month to fly from STL to DUJ is , when demand is low. Off-peak season is typically when you'll find lower airfares between these airports.
What is the cheapest airline that flies from Lambert-St. Louis Intl. Airport (STL) to DuBois Regional Airport (DUJ)?
To find the cheapest airline flying from STL to DUJ, use Expedia's filter tool. Customize your search based on your travel needs, such as preferred carriers and cabin class. You can then sort your results by "Price (lowest to highest)" to see the most affordable options first.
How many flights per day from Lambert-St. Louis Intl. Airport (STL) to DuBois Regional Airport (DUJ)?
There aren't any daily direct flights departing from Lambert-St. Louis Intl. Airport (STL) to DuBois Regional Airport (DUJ). But you can choose flights with layovers. Filter your search on Expedia to include one or more stops, and you'll be cruising above the clouds in no time at all.
What day of the week has the most flights from STL to DUJ?
Typically you'll find the largest variety of flight choices on a Friday. Tuesdays are often the quietest.* However, this can vary based 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 DuBois Regional Airport (DUJ)?
To land at DuBois Regional Airport (DUJ) on time, choose a flight that leaves from Lambert-St. Louis Intl. Airport (STL) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this hour.**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 DuBois Regional Airport (DUJ) last-minute?
Booking your plane ticket from STL to DUJ shortly before your journey is typically more expensive. But if you're flexible with your itinerary, you could snag a cheap last-minute fare.
Is it cheaper to book a STL to DUJ flight and hotel package?
Booking a STL to DUJ flight and hotel package tends to be cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels in one place. Pick from our extensive range of stays and then add activities, car rentals 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 Lambert-St. Louis Intl. Airport (STL) to DuBois Regional Airport (DUJ)?
If you reserved your STL to DUJ flight within the last 24 hours, you may be able to cancel or modify it without fees. Depending on the airline and the type of fare you purchased, additional charges may apply for changes after that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, visit our Customer Service portal if you want more information.

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