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St. Louis

$141+ Cheap flights from Oshkosh, WI to St. Louis (STL)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/5. Fares are subject to change and may not be available on all flights or dates of travel.
MKE — STL
Jan 17 — Jan 241
Sat 1/17
Sat 1/24
1 adult, Economy
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Cheap flight deals from Oshkosh to St. Louis

Cheapest flights from Oshkosh to St. Louis
Explore the most affordable flight options available from Oshkosh to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 18, 2025.

This United Airlines deal was found by Cheapflights users on 12/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/268:10 amATW - STL
1 stop6h 16mUnited Airlines
Wed 12/315:02 pmSTL - ATW
1 stop4h 35mUnited Airlines
Deal found 12/17$279
This United Airlines deal was found by Cheapflights users on 12/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/176:30 amATW - STL
1 stop4h 31mUnited Airlines
Fri 1/28:05 amSTL - ATW
1 stop6h 28mUnited Airlines
Deal found 12/16$289
This American Airlines deal was found by Cheapflights users on 12/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/175:10 amATW - STL
2 stops7h 22mAmerican Airlines
Fri 1/24:53 pmSTL - ATW
1 stop6h 43mAmerican Airlines
Deal found 12/16$294
This Delta deal was found by Cheapflights users on 12/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/1711:13 amATW - STL
1 stop5h 57mDelta
Wed 12/246:05 amSTL - ATW
1 stop5h 27mDelta
Deal found 12/16$309
This American Airlines deal was found by Cheapflights users on 12/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/175:10 amATW - STL
2 stops11h 24mAmerican Airlines
Wed 12/246:00 amSTL - ATW
1 stop3h 21mAmerican Airlines
Deal found 12/16$314
This American Airlines deal was found by Cheapflights users on 12/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/195:00 amATW - STL
1 stop8h 14mAmerican Airlines
Sun 12/216:00 amSTL - ATW
1 stop3h 21mAmerican Airlines
Deal found 12/15$319
This American Airlines deal was found by Cheapflights users on 12/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/269:51 amATW - STL
1 stop3h 45mAmerican Airlines
Wed 12/315:00 amSTL - ATW
2 stops10h 28mAmerican Airlines
Deal found 12/17$365
This American Airlines deal was found by Cheapflights users on 12/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/263:58 pmATW - STL
2 stops7h 57mAmerican Airlines
Fri 1/24:53 pmSTL - ATW
1 stop6h 43mAmerican Airlines
Deal found 12/17$404
This American Airlines deal was found by Cheapflights users on 12/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/279:51 amATW - STL
1 stop6h 32mAmerican Airlines
Fri 1/27:05 amSTL - ATW
2 stops8h 23mAmerican Airlines
Deal found 12/16$474

Find flight deals from Oshkosh to St. Louis

Keep the following information in mind while searching for Oshkosh to St. Louis flight deals. Data was last updated December 18, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$249
(American Airlines)

One-way from

$141
(Delta)

Popular in

June

Cheapest in

November

Average price

$290
Provider with most accurate pricing for Appleton Intl-Lambert-St Louis flight deals.
Search Deals
Provider most trusted by Cheapflights users for Appleton Intl-Lambert-St Louis flights.
Search Deals
From Oshkosh to Lambert-St Louis
Search Deals
One-way flight from Oshkosh to Lambert-St Louis
Search Deals
Highest demand for flights based on searches. 5% potential increase in price ($17 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($11 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Oshkosh to St. Louis 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, Cheapflights users made 2,558,603 searches. Data last updated December 18, 2025.
Use the filters below to find and compare flights from Oshkosh to St. Louis that are best for you.

Fly from

Oshkosh

Fly to

St. Louis

Route

Depart

Return

Price

AppletonSt. Louis

ATW - STL

ATWSTL

Appleton Intl

Thu 1/29

11:25 am-6:14 pm

1 stop6h 49m

Lambert-St Louis

Sat 1/31

11:05 am-4:33 pm

1 stop5h 28m

$249

AppletonSt. Louis

ATW - STL

ATWSTL

Appleton Intl

Thu 1/29

12:03 pm-4:45 pm

1 stop4h 42m

Lambert-St Louis

Sat 1/31

6:35 am-10:23 am

1 stop3h 48m

$254

AppletonSt. Louis

ATW - STL

ATWSTL

Appleton Intl

Fri 12/26

8:10 am-2:26 pm

1 stop6h 16m

Lambert-St Louis

Wed 12/31

5:02 pm-9:37 pm

1 stop4h 35m

$279

AppletonSt. Louis

ATW - STL

ATWSTL

Appleton Intl

Fri 12/26

9:51 am-1:36 pm

1 stop3h 45m

Lambert-St Louis

Fri 1/2

4:53 pm-11:36 pm

1 stop6h 43m

$279

AppletonSt. Louis

ATW - STL

ATWSTL

Appleton Intl

Thu 1/1

8:10 am-2:26 pm

1 stop6h 16m

Lambert-St Louis

Mon 1/5

3:10 pm-9:37 pm

1 stop6h 27m

$309

AppletonSt. Louis

ATW - STL

ATWSTL

Appleton Intl

Sat 1/31

2:45 pm-9:13 pm

1 stop6h 28m

Lambert-St Louis

Wed 2/4

11:20 am-4:48 pm

1 stop5h 28m

$309

AppletonSt. Louis

ATW - STL

ATWSTL

Appleton Intl

Thu 1/1

5:00 am-1:14 pm

1 stop8h 14m

Lambert-St Louis

Mon 1/5

5:16 am-3:28 pm

2 stops10h 12m

$314

AppletonSt. Louis

ATW - STL

ATWSTL

Appleton Intl

Thu 2/5

12:08 pm-4:45 pm

1 stop4h 37m

$141

AppletonSt. Louis

ATW - STL

ATWSTL

Appleton Intl

Thu 2/5

11:25 am-6:34 pm

2 stops7h 09m

$146

AppletonSt. Louis

ATW - STL

ATWSTL

Appleton Intl

Tue 12/23

2:38 pm-10:02 am

2 stops19h 24m

$335

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/17

Showing 1-10 of 15 results
1
2

Best time to book a flight from Oshkosh to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from Oshkosh with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Oshkosh to St. Louis

What is the cheapest month to book a flight from Oshkosh to St. Louis?

Currently, April is the cheapest month in which you can book a flight from Oshkosh to St. Louis (average of $156). Flying from Oshkosh to St. Louis in December is currently the most expensive (average of $244). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from OS9 to STL?

Find hourly flight availability from Oshkosh to St. Louis. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 18, 2025.

A simple way to save on the total cost of your ticket is to fly from Oshkosh to St. Louis in the afternoon. If you’re flexible enough to do this you can expect to save up to 22% on your trip compared to booking a flight at noon.

How much does it cost to fly round-trip from Oshkosh to St. Louis?

Reviews of airlines servicing St. Louis

Get insights into the airlines that provide service to St. Louis. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to St. Louis. Reviews last updated December 18, 2025.
Read reviews from past customers who have flown Delta, United Airlines, and American Airlines from Oshkosh to St. Louis. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,005 reviews

Comfort

7.9

Entertainment

7.9

Boarding

8.1

Crew

8.5

Overall

7.9

Food

7.3

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,005 reviews
Delta
7.9
Good
8,005 reviews

Comfort

7.9

Entertainment

7.9

Boarding

8.1

Crew

8.5

Overall

7.9

Food

7.3

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
United Airlines
7.4
Good
9,091 reviews
Delta
7.9
Good
8,005 reviews

Comfort

7.9

Entertainment

7.9

Boarding

8.1

Crew

8.5

Overall

7.9

Food

7.3

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
American Airlines
7.2
Good
11,054 reviews
Delta
7.9
Good
8,005 reviews

Comfort

7.9

Entertainment

7.9

Boarding

8.1

Crew

8.5

Overall

7.9

Food

7.3

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Related info for your journey

Find useful and relevant information for your journey from Oshkosh to St. Louis. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to St. Louis from Oshkosh?

    Most people fly into Lambert-St Louis (STL) if they book a flight to St. Louis from Oshkosh. On average, Lambert-St Louis has 0 inbound flights from Oshkosh per day from 4 airlines. Lambert-St Louis is conveniently located just 12.7 mi from St. Louis’s city center.

  • How popular is this Oshkosh to St. Louis flight route?

    Flights from Oshkosh to Lambert-St Louis have been viewed 27 times in the past calendar month.

  • How long is the flight from Oshkosh to St. Louis?

    American Airlines and Delta can get you from Oshkosh to St. Louis in just under 4h 42m. Your travel time can differ by up to 2h 07m. Oshkosh and St. Louis are separated by a distance of 392 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest flights from Oshkosh to St. Louis?

    The cheapest flight price from Oshkosh to St. Louis is $149. On average you can expect to pay $331. The most popular route, (Appleton Intl - Lambert-St Louis), can usually be booked for $249.

  • Can I find deals for flights from Oshkosh to St. Louis that include hotel bookings?

    Yes. In addition to deals on Oshkosh to St. Louis flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Oshkosh to St. Louis?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Oshkosh to St. Louis.

  • Can I find deals for business class flights from Oshkosh to St. Louis?

    Yes. Cheapflights offers flight deals from Oshkosh to St. Louis by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Oshkosh to St. Louis?

    Currently, April is the cheapest month in which you can book a flight from Oshkosh to St. Louis (average of $156). Flying from Oshkosh to St. Louis in December is currently the most expensive (average of $244). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
Edwardsville
O'Fallon
Fairview Heights
Maryland Heights
Collinsville
Swansea
Eureka
Glencoe
St. Peters
Chesterfield
Alton
Farmington
Festus

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Top 4 airlines flying from Oshkosh to St. Louis

Discover the top 4 airlines that operate flights from Oshkosh to St. Louis. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$156Average$350FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$158Average$370FlexibilityNo cancel feeOn-time71%
DeltaCheapest$198Average$265FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$227Average$371FlexibilityNo cancel feeOn-time63%

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