Cheap Flights from St. Louis (STL) to Maastricht (MST)

Popular airlines from St. Louis Lambert Intl. Airport (STL) to Maastricht (MST-Maastricht - Aachen)

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Frequently asked questions

How much does a flight from Lambert-St. Louis Intl. Airport (STL) to Maastricht - Aachen Airport (MST) cost?
Grab a cheap one-way flight or cheap return flight from Lambert-St. Louis Intl. Airport (STL) to Maastricht - Aachen Airport (MST) 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 Maastricht - Aachen Airport (MST)?
Traveling in can help you save, as it's the cheapest month for flights between STL and MST. You'll typically find the lowest prices during off-peak months.
What is the cheapest airline that flies from Lambert-St. Louis Intl. Airport (STL) to Maastricht - Aachen Airport (MST)?
Use the filters on Expedia to compare airlines and find the cheapest carrier that'll take you from STL to MST. Then, sort your results by "Price (lowest to highest)" to snag the best deal available.
How many flights per day from Lambert-St. Louis Intl. Airport (STL) to Maastricht - Aachen Airport (MST)?
You'll have to hop on a flight with a layover if you're traveling from Lambert-St. Louis Intl. Airport (STL) to Maastricht - Aachen Airport (MST). Direct flights don't operate daily on this route. However, just 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 STL to MST?
Friday is typically the busiest day for flights, while Tuesday is often the quietest.* Just remember that flight schedules can vary based on various factors, such as the time of year and airline.*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 Maastricht - Aachen Airport (MST)?
To avoid possible delays on the Lambert-St. Louis Intl. Airport (STL) to Maastricht - Aachen Airport (MST) route, travel before 3 PM. Later flights have a 22% higher chance of being 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 Lambert-St. Louis Intl. Airport (STL) to Maastricht - Aachen Airport (MST) last-minute?
Waiting until just before your trip to book a flight from STL to MST generally means paying more. While you may find some last-minute offers, they're not always guaranteed. Keep your travel schedule open to maximize your chances of landing a bargain.
Is it cheaper to book a STL to MST flight and hotel package?
You'll generally save money by securing a STL to MST flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's simple to manage everything in one place. After selecting your ideal accommodations and flights, consider adding extras including activities, car rentals and tours.
Can I cancel or change the date of my flight from Lambert-St. Louis Intl. Airport (STL) to Maastricht - Aachen Airport (MST)?
Generally, it's possible to cancel or reschedule your STL to MST flight. However, if it's been more than 24 hours since booking, 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 more information on our Customer Service portal.

Travel information

Origin airport
Lambert-St. Louis Intl.
Destination airport
Maastricht - Aachen
Distance
4444 mi

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St. Louis to Maastricht Flights

The cheapest times to fly from St. Louis to Maastricht

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

 

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

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

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 Maastricht 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 Maastricht 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 Maastricht 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 Maastricht Flights

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