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St. Louis

$126+ 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 10/25. Fares are subject to change and may not be available on all flights or dates of travel.
MKE — STL
Oct 15 — Oct 221
Wed 10/15
Wed 10/22
1 adult, Economy
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Cheap 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 September 15, 2025.

Round-trip from

$225
(American Airlines)

One-way from

$126
(Delta)

Popular in

June

Cheapest in

August

Average price

$370
From Oshkosh to Lambert-St Louis
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One-way flight from Oshkosh to Lambert-St Louis
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Highest demand for flights based on searches. 2% potential increase in price ($6 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($10 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find 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 September 15, 2025.

This Delta deal was found by Cheapflights users on 9/15. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/87:01 amATW - STL
1 stop6h 21mDelta
Wed 10/1510:45 amSTL - ATW
1 stop6h 02mDelta
Deal found 9/15$229
This American Airlines deal was found by Cheapflights users on 9/15. 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.
Sat 10/119:53 amATW - STL
2 stops11h 00mAmerican Airlines
Tue 10/148:04 pmSTL - ATW
1 stop3h 39mAmerican Airlines
Deal found 9/15$234
This United Airlines deal was found by Cheapflights users on 9/15. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/306:45 pmATW - STL
1 stop3h 50mUnited Airlines
Sat 10/49:20 amSTL - ATW
1 stop4h 44mUnited Airlines
Deal found 9/15$239
This American Airlines deal was found by Cheapflights users on 9/15. 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.
Tue 9/306:00 amATW - STL
1 stop3h 26mAmerican Airlines
Sat 10/42:11 pmSTL - ATW
2 stops8h 14mAmerican Airlines
Deal found 9/15$244
This United Airlines deal was found by Cheapflights users on 9/14. 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 9/242:41 pmATW - STL
1 stop6h 51mUnited Airlines
Sun 9/289:20 amSTL - ATW
1 stop5h 51mUnited Airlines
Deal found 9/14$254
This American Airlines deal was found by Cheapflights users on 9/14. 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.
Thu 9/256:00 amATW - STL
2 stops9h 46mAmerican Airlines
Sun 9/288:03 pmSTL - ATW
1 stop3h 34mAmerican Airlines
Deal found 9/14$259
This Delta deal was found by Cheapflights users on 9/12. 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.
Thu 9/1812:15 pmATW - STL
1 stop4h 30mDelta
Sun 9/215:50 pmSTL - ATW
1 stop3h 45mDelta
Deal found 9/12$279
This United Airlines deal was found by Cheapflights users on 9/14. 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.
Thu 10/236:30 amATW - STL
1 stop4h 19mUnited Airlines
Mon 10/275:24 pmSTL - ATW
1 stop4h 09mUnited Airlines
Deal found 9/14$281
This American Airlines deal was found by Cheapflights users on 9/13. 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 9/196:00 amATW - STL
1 stop3h 26mAmerican Airlines
Mon 9/222:11 pmSTL - ATW
2 stops9h 26mAmerican Airlines
Deal found 9/13$284
This United Airlines deal was found by Cheapflights users on 9/14. 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.
Thu 10/98:20 amATW - STL
1 stop6h 07mUnited Airlines
Sun 10/1212:25 pmSTL - ATW
1 stop4h 24mUnited Airlines
Deal found 9/14$287
This United Airlines deal was found by Cheapflights users on 9/14. 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.
Tue 10/76:30 amATW - STL
1 stop4h 19mUnited Airlines
Mon 10/1312:25 pmSTL - ATW
1 stop4h 24mUnited Airlines
Deal found 9/14$289

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 September 15, 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

Sat 10/11

4:57 pm-8:33 pm

1 stop3h 36m

Lambert-St Louis

Thu 10/16

6:00 am-11:25 am

1 stop5h 25m

$229

AppletonSt. Louis

ATW - STL

ATWSTL

Appleton Intl

Sat 10/11

12:05 pm-3:31 pm

1 stop3h 26m

Lambert-St Louis

Mon 10/13

5:31 pm-9:15 pm

1 stop3h 44m

$229

AppletonSt. Louis

ATW - STL

ATWSTL

Appleton Intl

Wed 10/8

7:01 am-1:22 pm

1 stop6h 21m

Lambert-St Louis

Tue 10/14

6:40 am-10:31 am

1 stop3h 51m

$229

AppletonSt. Louis

ATW - STL

ATWSTL

Appleton Intl

Sat 10/11

12:05 pm-3:31 pm

1 stop3h 26m

Lambert-St Louis

Tue 10/14

6:40 am-10:31 am

1 stop3h 51m

$229

AppletonSt. Louis

ATW - STL

ATWSTL

Appleton Intl

Thu 9/25

6:30 am-10:49 am

1 stop4h 19m

Lambert-St Louis

Sun 9/28

8:00 am-2:08 pm

1 stop6h 08m

$254

AppletonSt. Louis

ATW - STL

ATWSTL

Appleton Intl

Thu 9/25

6:00 am-3:46 pm

2 stops9h 46m

Lambert-St Louis

Sun 9/28

8:03 pm-11:37 pm

1 stop3h 34m

$259

AppletonSt. Louis

ATW - STL

ATWSTL

Appleton Intl

Wed 2/18

2:43 pm-9:00 pm

1 stop6h 17m

Lambert-St Louis

Sat 2/21

7:41 am-2:08 pm

1 stop6h 27m

$259

AppletonSt. Louis

ATW - STL

ATWSTL

Appleton Intl

Thu 10/23

6:30 am-10:49 am

1 stop4h 19m

Lambert-St Louis

Mon 10/27

5:24 pm-9:33 pm

1 stop4h 09m

$281

AppletonSt. Louis

ATW - STL

ATWSTL

Appleton Intl

Fri 10/10

6:30 am-10:49 am

1 stop4h 19m

Lambert-St Louis

Sun 10/12

12:25 pm-4:49 pm

1 stop4h 24m

$284

AppletonSt. Louis

ATW - STL

ATWSTL

Appleton Intl

Thu 10/9

8:20 am-2:27 pm

1 stop6h 07m

Lambert-St Louis

Sun 10/12

12:25 pm-4:49 pm

1 stop4h 24m

$287

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/14

Showing 1-10 of 20 results
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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, August is the cheapest month in which you can book a flight from Oshkosh to St. Louis (average of $311). Flying from Oshkosh to St. Louis in March is currently the most expensive (average of $356). 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 September 15, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Oshkosh to St. Louis as you normally would.

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 September 15, 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
8.0
Very good
7,954 reviews

Entertainment

7.9

Overall

8.0

Comfort

7.9

Boarding

8.2

Crew

8.5

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,954 reviews
Delta
8.0
Very good
7,954 reviews

Entertainment

7.9

Overall

8.0

Comfort

7.9

Boarding

8.2

Crew

8.5

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,929 reviews
Delta
8.0
Very good
7,954 reviews

Entertainment

7.9

Overall

8.0

Comfort

7.9

Boarding

8.2

Crew

8.5

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,954 reviews

Entertainment

7.9

Overall

8.0

Comfort

7.9

Boarding

8.2

Crew

8.5

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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 29 times in the past calendar month.

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

    Delta and United Airlines can get you from Oshkosh to St. Louis in just under 3h 36m. Your travel time can differ by up to 43m. 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 $113. On average you can expect to pay $292. The most popular route, (Appleton Intl - Lambert-St Louis), can usually be booked for $254.

  • 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, August is the cheapest month in which you can book a flight from Oshkosh to St. Louis (average of $311). Flying from Oshkosh to St. Louis in March is currently the most expensive (average of $356). 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
Eureka
Glencoe
St. Peters
Chesterfield
Alton
Farmington
Festus

Browse thousands of different options on Cheapflights for your next trip

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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 September 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$156Average$377FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$158Average$375FlexibilityNo cancel feeOn-time71%
DeltaCheapest$198Average$333FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$226Average$337FlexibilityNo cancel feeOn-time63%

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