Cheap Flights from Wausau (AUW) to St. Louis (STL)

Popular airlines from Wausau, WI (AUW-Wausau Downtown) to St. Louis Lambert Intl. Airport (STL)

Frequently asked questions

How much does a flight from Wausau Downtown Airport (AUW) to Lambert-St. Louis Intl. Airport (STL) cost?
Grab a cheap one-way flight or cheap return flight from Wausau Downtown Airport (AUW) to Lambert-St. Louis Intl. Airport (STL) 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 Wausau Downtown Airport (AUW) to Lambert-St. Louis Intl. Airport (STL)?
The cheapest month to fly from AUW to STL is , when demand is low. Off-peak season is usually when you'll find cheap fares for travel between these airports.
What is the cheapest airline that flies from Wausau Downtown Airport (AUW) to Lambert-St. Louis Intl. Airport (STL)?
To find the cheapest airline that'll fly you from AUW to STL, use Expedia's filter tool. Customize your search based on your travel style, such as preferred carriers and number of stops. You can then sort your results by "Price (lowest to highest)" to see the most affordable options first.
How many flights per day from Wausau Downtown Airport (AUW) to Lambert-St. Louis Intl. Airport (STL)?
You'll have to take a flight with a layover when traveling from Wausau Downtown Airport (AUW) to Lambert-St. Louis Intl. Airport (STL). Direct flights don't operate daily on this route. However, just filter your search to include one or more stops to discover an option that works for you.
What day of the week has the most flights from AUW to STL?
Friday is typically the busiest day for flights, while Tuesday is often the quietest.* Keep in mind 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 Wausau Downtown Airport (AUW) to Lambert-St. Louis Intl. Airport (STL)?
To avoid possible delays on the Wausau Downtown Airport (AUW) to Lambert-St. Louis Intl. Airport (STL) route, fly before 3 PM. Later departures are 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 Wausau Downtown Airport (AUW) to Lambert-St. Louis Intl. Airport (STL) last-minute?
Booking your plane ticket from AUW to STL shortly before your trip is usually more expensive. But if there's some wiggle room with your travel times and dates, you could bag a cheap last-minute fare.
Is it cheaper to book an AUW to STL flight and hotel package?
You'll generally save money by booking an AUW 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 it all in one convenient place. Once you've chosen your ideal flights and accommodations, consider adding extras like tours, car rentals and activities.
Can I cancel or change the date of my flight from Wausau Downtown Airport (AUW) to Lambert-St. Louis Intl. Airport (STL)?
In most cases, you can cancel or modify your AUW to STL flight. However, there may be additional charges, especially if you booked over 24 hours ago. Check your itinerary for the airline's guidelines and fees on flight changes, or if you'd like more details, head to our Customer Service portal.

Travel information

Origin airport
Wausau Downtown
Destination airport
Lambert-St. Louis Intl.
Distance
429 mi

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Wausau to St. Louis Flights

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

 

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

Sunday is one of the best days to book for cheap flights from Wausau 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 Wausau 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 Wausau 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 Wausau 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 Wausau 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.

 

Wausau to St. Louis Flights

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*Available to One Key members.