Cheap Flights from St. Louis (STL) to Frederick (FDK)

Popular airlines from St. Louis Lambert Intl. Airport (STL) to Frederick, MD (FDK-Frederick Municipal)

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Frequently asked questions

How much does a flight from Lambert-St. Louis Intl. Airport (STL) to Frederick, MD (FDK-Frederick Municipal) cost?
Secure a cheap one-way flight or cheap return flight from Lambert-St. Louis Intl. Airport (STL) to Frederick, MD (FDK-Frederick Municipal) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from Lambert-St. Louis Intl. Airport (STL) to Frederick, MD (FDK-Frederick Municipal)?
The cheapest month to fly from STL to FDK is , when demand is low. Off-peak months are often when airlines offer better prices between these airports.
What is the cheapest airline that flies from Lambert-St. Louis Intl. Airport (STL) to Frederick, MD (FDK-Frederick Municipal)?
To find the cheapest airline that'll fly you from STL to FDK, use Expedia's filter tool. Tailor your search based on your travel needs, such as preferred carriers and number of stops. You can then sort your results by "Price (lowest to highest)" to list the most affordable options first.
How many flights per day from Lambert-St. Louis Intl. Airport (STL) to Frederick, MD (FDK-Frederick Municipal)?
Nonstop flights from Lambert-St. Louis Intl. Airport (STL) to Frederick, MD (FDK-Frederick Municipal) aren't available daily, so you'll need to take a flight with a layover. Explore your options with our filter tool. Enter your dates and select either "1 Stop" or "2+ Stops."
What day of the week has the most flights from STL to FDK?
Usually you'll find the greatest selection of flight options on a Friday. Tuesdays are often the quietest.* But this can change depending on the time of year, carrier 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 Frederick, MD (FDK-Frederick Municipal)?
To avoid possible delays on the Lambert-St. Louis Intl. Airport (STL) to Frederick, MD (FDK-Frederick Municipal) route, fly before 3 PM. Later flights have a 22% higher chance of cancellation.**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.
What airports do you fly into for Frederick from Lambert-St. Louis Intl. Airport (STL)?
Catch a direct flight from Lambert-St. Louis Intl. Airport (STL) to Frederick and come in for landing at one of these hubs:

  • Ronald Reagan Washington National Airport (DCA)
  • Washington Dulles Intl. Airport (IAD)
  • Baltimore Washington Intl. Thurgood Marshall Airport (BWI)

Is it cheaper to buy a plane ticket from Lambert-St. Louis Intl. Airport (STL) to Frederick, MD (FDK-Frederick Municipal) last-minute?
Holding off until right before your break to book your flight from STL to FDK generally means paying more. Although you may find some last-minute offers, there's no guarantee. Be flexible with your itinerary for the best chance of getting a bargain.
Is it cheaper to book a STL to FDK flight and hotel package?
Securing a STL to FDK flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your trip all in one place. Select from our extensive range of stays and then add car rentals, activities and flights to your booking. Bundle it all 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 Frederick, MD (FDK-Frederick Municipal)?
Typically, it's possible to cancel or reschedule your STL to FDK flight. However, for bookings made more than 24 hours ago, additional fees may apply. Refer to your airline's policies in your itinerary to see what changes are allowed and if any costs are involved. You'll also find further details on our Customer Service portal.

Travel information

Travel information

Origin airport
Lambert-St. Louis Intl.
Destination airport
Frederick Municipal
Distance
697 mi

Book with confidence

Book with confidence

St. Louis to Frederick Flights

The cheapest times to fly from St. Louis to Frederick

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

 

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

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

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 Frederick in 2025. You can also book with separate airlines for your outbound and return journeys, from 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 Frederick 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 Frederick 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 Frederick Flights

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