Cheap Flights from Sanford (SFM) to St. Louis (STL)

Popular airlines from Sanford, ME (SFM-Sanford Seacoast Regional) to St. Louis Lambert Intl. Airport (STL)

Frequently asked questions

How much does a flight from Sanford, ME (SFM-Sanford Seacoast Regional) to Lambert-St. Louis Intl. Airport (STL) cost?
Secure a cheap one-way flight or cheap return flight from Sanford, ME (SFM-Sanford Seacoast Regional) to Lambert-St. Louis Intl. Airport (STL) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Sanford, ME (SFM-Sanford Seacoast Regional) to Lambert-St. Louis Intl. Airport (STL)?
is the most affordable month to fly from SFM to STL. Traveling during an off-peak travel window is often the key to finding better deals on flights.
What is the cheapest airline that flies from Sanford, ME (SFM-Sanford Seacoast Regional) to Lambert-St. Louis Intl. Airport (STL)?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from SFM to STL. Then, sort your results by "Price (lowest to highest)" to pick up the best deal available.
How many flights per day from Sanford, ME (SFM-Sanford Seacoast Regional) to Lambert-St. Louis Intl. Airport (STL)?
There aren't any daily nonstop flights from Sanford, ME (SFM-Sanford Seacoast Regional) to Lambert-St. Louis Intl. Airport (STL). But you can book flights with layovers. Filter your search results on Expedia to include one or more stops, and you'll be soaring above the clouds in no time at all.
What day of the week has the most flights from SFM to STL?
You'll typically find Tuesday the quietest day for flights, while Fridays tend to be 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 Sanford, ME (SFM-Sanford Seacoast Regional) to Lambert-St. Louis Intl. Airport (STL)?
To touch down at Lambert-St. Louis Intl. Airport (STL) without delays, pick a flight that takes off from Sanford, ME (SFM-Sanford Seacoast Regional) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this time.**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 Sanford, ME (SFM-Sanford Seacoast Regional) to Lambert-St. Louis Intl. Airport (STL) last-minute?
Booking your ticket from SFM to STL shortly before your journey is generally more expensive. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a SFM to STL flight and hotel package?
You'll generally save money by booking a SFM to STL flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's simple to manage everything in one convenient place. After selecting your ideal accommodations and flights, consider adding extras such as car rentals, activities and tours.
Can I cancel or change the date of my flight from Sanford, ME (SFM-Sanford Seacoast Regional) to Lambert-St. Louis Intl. Airport (STL)?
If you reserved your SFM to STL flight within the last 24 hours, you may be able to cancel or modify it at no cost. Depending on the airline and the ticket type you purchased, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, visit our Customer Service portal if you'd like more information.

Travel information

Travel information

Origin airport
Sanford Seacoast Regional
Destination airport
Lambert-St. Louis Intl.
Distance
1070 mi

Book with confidence

Book with confidence

Sanford to St. Louis Flights

The cheapest times to fly from Sanford to St. Louis

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

 

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

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

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 Sanford to St. Louis 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 Sanford to St. Louis 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 Sanford to St. Louis 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.

 

Sanford to St. Louis Flights

Explore a world of travel with Expedia

Explore a world of travel with Expedia

*Available to One Key members.