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Cheap flights from St. Louis to Wausau from $370

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Wausau departing on 3/21. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Find the cheapest flights from St. Louis to Wausau

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
6:00 am - 11:01 am
STL
-
CWA
5h 01m
1 stop
American Airlines Logo
5:20 am - 10:03 am
CWA
-
STL
4h 43m
1 stop
$409American Airlines
Fri, Mar 27 - Sun, Mar 29
Delta Logo
9:45 am - 3:36 pm
STL
-
CWA
5h 51m
1 stop
Delta Logo
7:00 am - 11:48 am
CWA
-
STL
4h 48m
1 stop
$424Delta
Fri, Mar 27 - Tue, Mar 31
American Airlines Logo
6:33 pm - 11:35 pm
STL
-
CWA
5h 02m
1 stop
American Airlines Logo
11:31 am - 7:30 pm
CWA
-
STL
7h 59m
2 stops
$435American Airlines
Sat, Mar 28 - Wed, Apr 1
Delta Logo
9:45 am - 3:36 pm
STL
-
CWA
5h 51m
1 stop
Delta Logo
4:19 pm - 2:24 pm
CWA
-
STL
22h 05m
1 stop
$442Delta
Fri, Mar 27 - Mon, Mar 30
American Airlines Logo
6:33 pm - 11:35 pm
STL
-
CWA
5h 02m
1 stop
American Airlines Logo
11:31 am - 3:35 pm
CWA
-
STL
4h 04m
1 stop
$464American Airlines
Sat, Mar 28 - Wed, Apr 1
Delta Logo
9:45 am - 3:36 pm
STL
-
CWA
5h 51m
1 stop
Delta Logo
4:19 pm - 11:09 am
CWA
-
STL
18h 50m
2 stops
$472Delta
Fri, Mar 27 - Mon, Mar 30
Delta Logo
9:45 am - 3:36 pm
STL
-
CWA
5h 51m
1 stop
Delta Logo
4:19 pm - 9:05 am
CWA
-
STL
16h 46m
2 stops
$489Delta
Fri, Mar 27 - Sun, Mar 29
United Airlines Logo
8:00 am - 2:00 pm
STL
-
CWA
6h 00m
1 stop
United Airlines Logo
10:45 am - 3:46 pm
CWA
-
STL
5h 01m
1 stop
$497United Airlines
Mon, Jun 1 - Wed, Jun 3
United Airlines Logo
5:41 pm - 9:27 pm
STL
-
CWA
3h 46m
1 stop
United Airlines Logo
10:45 am - 3:46 pm
CWA
-
STL
5h 01m
1 stop
$517United Airlines
Mon, Jun 1 - Wed, Jun 3
American Airlines Logo
4:13 pm - 11:35 pm
STL
-
CWA
7h 22m
2 stops
American Airlines Logo
11:31 am - 7:30 pm
CWA
-
STL
7h 59m
2 stops
$572American Airlines
Sat, Mar 28 - Wed, Apr 1

United Airlines flights from St. Louis to Wausau

Our best United Airlines deals on St. Louis to Wausau flight tickets
United Airlines
Jun 1
STL8:00 amLambert-St Louis
6h 00m
1 stop
CWA2:00 pmWausau Central Wisconsin
Jun 3
CWA10:45 amWausau Central Wisconsin
5h 01m
1 stop
STL3:46 pmLambert-St Louis
$497
United Airlines
Jun 1
STL5:41 pmLambert-St Louis
3h 46m
1 stop
CWA9:27 pmWausau Central Wisconsin
Jun 3
CWA10:45 amWausau Central Wisconsin
5h 01m
1 stop
STL3:46 pmLambert-St Louis
$517
United Airlines
Jun 1
STL5:10 amLambert-St Louis
8h 50m
2 stops
CWA2:00 pmWausau Central Wisconsin
Jun 3
CWA2:35 pmWausau Central Wisconsin
6h 41m
1 stop
STL9:16 pmLambert-St Louis
$821

American Airlines flights from St. Louis to Wausau

Our best American Airlines deals on St. Louis to Wausau flight tickets
American Airlines
Mar 27
STL6:00 amLambert-St Louis
5h 01m
1 stop
CWA11:01 amWausau Central Wisconsin
Mar 29
CWA5:20 amWausau Central Wisconsin
4h 43m
1 stop
STL10:03 amLambert-St Louis
$409
American Airlines
Mar 28
STL6:33 pmLambert-St Louis
5h 02m
1 stop
CWA11:35 pmWausau Central Wisconsin
Apr 1
CWA11:31 amWausau Central Wisconsin
7h 59m
2 stops
STL7:30 pmLambert-St Louis
$435
American Airlines
Mar 28
STL6:33 pmLambert-St Louis
5h 02m
1 stop
CWA11:35 pmWausau Central Wisconsin
Apr 1
CWA11:31 amWausau Central Wisconsin
4h 04m
1 stop
STL3:35 pmLambert-St Louis
$464

momondo Fare Finder

 
Customize your flight search to find flights from St. Louis to Wausau that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated March 12, 2026.
Use the filters below to find and compare flights from St. Louis to Wausau that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

St. LouisWausau

STL - CWA

STLCWA

Lambert-St Louis

Fri 3/27

6:00 am-11:01 am

1 stop5h 01m

Wausau Central Wisconsin

Sun 3/29

5:20 am-10:03 am

1 stop4h 43m

$409

St. LouisWausau

STL - CWA

STLCWA

Lambert-St Louis

Fri 3/27

9:45 am-3:36 pm

1 stop5h 51m

Wausau Central Wisconsin

Tue 3/31

7:00 am-11:48 am

1 stop4h 48m

$424

St. LouisWausau

STL - CWA

STLCWA

Lambert-St Louis

Sat 3/28

6:33 pm-11:35 pm

1 stop5h 02m

Wausau Central Wisconsin

Wed 4/1

11:31 am-7:30 pm

2 stops7h 59m

$435

St. LouisWausau

STL - CWA

STLCWA

Lambert-St Louis

Fri 3/27

9:45 am-3:36 pm

1 stop5h 51m

Wausau Central Wisconsin

Mon 3/30

4:19 pm-2:24 pm

1 stop22h 05m

$442

St. LouisWausau

STL - CWA

STLCWA

Lambert-St Louis

Sat 3/28

6:33 pm-11:35 pm

1 stop5h 02m

Wausau Central Wisconsin

Wed 4/1

11:31 am-3:35 pm

1 stop4h 04m

$464

St. LouisWausau

STL - CWA

STLCWA

Lambert-St Louis

Fri 3/27

9:45 am-3:36 pm

1 stop5h 51m

Wausau Central Wisconsin

Mon 3/30

4:19 pm-11:09 am

2 stops18h 50m

$472

St. LouisWausau

STL - CWA

STLCWA

Lambert-St Louis

Fri 3/27

9:45 am-3:36 pm

1 stop5h 51m

Wausau Central Wisconsin

Sun 3/29

4:19 pm-9:05 am

2 stops16h 46m

$489

St. LouisWausau

STL - CWA

STLCWA

Lambert-St Louis

Mon 6/1

8:00 am-2:00 pm

1 stop6h 00m

Wausau Central Wisconsin

Wed 6/3

10:45 am-3:46 pm

1 stop5h 01m

$497
Quickest round-trip

St. LouisWausau

STL - CWA

STLCWA

Lambert-St Louis

Mon 6/1

5:41 pm-9:27 pm

1 stop3h 46m

Wausau Central Wisconsin

Wed 6/3

10:45 am-3:46 pm

1 stop5h 01m

$517

St. LouisWausau

STL - CWA

STLCWA

Lambert-St Louis

Sat 3/28

4:13 pm-11:35 pm

2 stops7h 22m

Wausau Central Wisconsin

Wed 4/1

11:31 am-7:30 pm

2 stops7h 59m

$572

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 12 resultsSorted by cheapest first
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See travel insights to Wausau from

How to get the cheapest flight ticket from St. Louis to Wausau

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest airline that flies from Lambert-St Louis to Wausau Central Wisconsin?

American Airlines is the most popular carrier operating from Lambert-St Louis to Wausau Central Wisconsin

What airlines fly to Wausau?

American Airlines, United Airlines and Delta are the top three most popular airlines that fly to Wausau from St. Louis according to our data. American Airlines is the first choice among our users, with 67% of people opting to fly with this airline when traveling to Wausau. Keep in mind that there are 3 different airlines that fly to Wausau on a routine basis, so you have a few additional options to choose from.

When to book flights from St. Louis to Wausau

Are you open to changing your travel dates? Check out the ideal times to fly from St. Louis to Wausau according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap St. Louis to Wausau (STL to CWA) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from St. Louis to Wausau

Fastest flight time

3h 38m

Direct flights

None
The fastest flight from St. Louis to Wausau takes 3h 38m
There are no direct flights from St. Louis to Wausau. There are no popular flight routes from St. Louis to Wausau.
Search flight deals

  • How far is Lambert-St Louis to Wausau Central Wisconsin by plane?

    Lambert-St Louis and Wausau Central Wisconsin are 438.2 mi apart from one another. In terms of flight time, this usually takes a little over 3h 38m.

  • When did momondo last update prices for flights from Lambert-St Louis Airport to Wausau Central Wisconsin Airport?

    Prices for flights from Lambert-St Louis Airport to Wausau Central Wisconsin Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Lambert-St Louis Airport to Wausau Central Wisconsin Airport?

  • How old do you have to be to fly from Lambert-St Louis Airport to Wausau Central Wisconsin Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Lambert-St Louis Airport to Wausau Central Wisconsin Airport.

  • What documentation or ID do you need to fly to Wausau Central Wisconsin Airport?

    The travel and health documents required for your trip to Wausau Central Wisconsin Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Wausau Central Wisconsin Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular airline from St. Louis to Wausau?

Best airlines flying from St. Louis to Wausau

Compare and see reviews for airlines that fly from St. Louis to Wausau with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $287Free CancellationRating
7.1
11,432 reviews
Search American Airlines flights

Traveling to a place near Wausau?

Book flights to Wausau if you plan to visit one of these locations
Stevens Point
Marshfield
Wisconsin Rapids
Abbotsford
Mosinee

Why use momondo?

Why should I use momondo to find a flight deal from St. Louis to Wausau?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Wausau from St. Louis.

Can I find flights from St. Louis to Wausau with flexible booking policies on momondo?

momondo does allow users to show only those flights to Wausau from St. Louis which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from St. Louis to Wausau?

Once you have performed a search for St. Louis to Wausau flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from St. Louis to Wausau right now. Can momondo alert me if prices change?

If you are not ready to book a flight from St. Louis to Wausau now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Wausau and let you know when they change.

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