HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
St. Louis

$137+ 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 2/18. Fares are subject to change and may not be available on all flights or dates of travel.
MKE — STL
feb. 14 — feb. 211
sáb. 2/14
sáb. 2/21
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Oshkosh to St. Louis with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 enero 15, 2026.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$249
(Delta)

One-way from

$137
(Delta)

Popular in

June

Cheapest in

November

Average price

$296
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. 1% potential increase in price ($5 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

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 enero 15, 2026.

This Delta deal was found by Cheapflights users on 1/15. 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.
vie. 2/611:03 am
ATW
-
STL
1 stop5h 34m
Delta
lun. 2/96:10 am
STL
-
ATW
1 stop5h 13m
Delta
Deal found 1/15$249
This United Airlines deal was found by Cheapflights users on 1/14. 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.
jue. 1/295:23 pm
ATW
-
STL
1 stop5h 35m
United Airlines
lun. 2/24:49 pm
STL
-
ATW
1 stop4h 42m
United Airlines
Deal found 1/14$259
This American Airlines deal was found by Cheapflights users on 1/14. 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.
jue. 1/297:15 am
ATW
-
STL
2 stops8h 59m
American Airlines
sáb. 1/3111:05 am
STL
-
ATW
1 stop5h 28m
American Airlines
Deal found 1/14$264
This United Airlines deal was found by Cheapflights users on 1/15. 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.
lun. 2/162:39 pm
ATW
-
STL
1 stop6h 26m
United Airlines
lun. 2/237:41 am
STL
-
ATW
1 stop6h 17m
United Airlines
Deal found 1/15$267
This American Airlines deal was found by Cheapflights users on 1/13. 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.
jue. 2/266:39 pm
ATW
-
STL
1 stop5h 09m
American Airlines
sáb. 2/288:00 am
STL
-
ATW
1 stop4h 51m
American Airlines
Deal found 1/13$269
This American Airlines deal was found by Cheapflights users on 1/14. 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.
jue. 1/297:15 am
ATW
-
STL
2 stops8h 59m
American Airlines
lun. 2/26:52 am
STL
-
ATW
2 stops10h 59m
American Airlines
Deal found 1/14$270
This American Airlines deal was found by Cheapflights users on 1/15. 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.
lun. 2/166:39 pm
ATW
-
STL
1 stop5h 09m
American Airlines
lun. 2/231:34 pm
STL
-
ATW
2 stops9h 50m
American Airlines
Deal found 1/15$275
This American Airlines deal was found by Cheapflights users on 1/14. 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.
jue. 2/126:39 pm
ATW
-
STL
1 stop5h 09m
American Airlines
dom. 2/158:00 am
STL
-
ATW
1 stop4h 51m
American Airlines
Deal found 1/14$305

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 enero 15, 2026.
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

mié. 3/18

12:06 pm-5:05 pm

1 stop4h 59m

Lambert-St Louis

dom. 3/22

6:29 am-11:25 am

1 stop4h 56m

$249

AppletonSt. Louis

ATW - STL

ATWSTL

Appleton Intl

vie. 2/6

11:03 am-4:37 pm

1 stop5h 34m

Lambert-St Louis

lun. 2/9

6:35 am-10:23 am

1 stop3h 48m

$249

AppletonSt. Louis

ATW - STL

ATWSTL

Appleton Intl

vie. 4/3

11:14 am-4:32 pm

1 stop5h 18m

Lambert-St Louis

lun. 4/6

5:25 pm-9:15 pm

1 stop3h 50m

$249

AppletonSt. Louis

ATW - STL

ATWSTL

Appleton Intl

jue. 1/29

5:23 pm-10:58 pm

1 stop5h 35m

Lambert-St Louis

lun. 2/2

4:49 pm-9:31 pm

1 stop4h 42m

$259

AppletonSt. Louis

ATW - STL

ATWSTL

Appleton Intl

jue. 1/29

7:15 am-4:14 pm

2 stops8h 59m

Lambert-St Louis

sáb. 1/31

11:05 am-4:33 pm

1 stop5h 28m

$264

AppletonSt. Louis

ATW - STL

ATWSTL

Appleton Intl

jue. 1/29

7:15 am-4:14 pm

2 stops8h 59m

Lambert-St Louis

lun. 2/2

3:37 pm-9:57 pm

1 stop6h 20m

$264

AppletonSt. Louis

ATW - STL

ATWSTL

Appleton Intl

lun. 2/16

2:39 pm-9:05 pm

1 stop6h 26m

Lambert-St Louis

lun. 2/23

7:41 am-1:58 pm

1 stop6h 17m

$267

AppletonSt. Louis

ATW - STL

ATWSTL

Appleton Intl

jue. 2/26

6:39 pm-11:48 pm

1 stop5h 09m

Lambert-St Louis

sáb. 2/28

8:00 am-12:51 pm

1 stop4h 51m

$269

AppletonSt. Louis

ATW - STL

ATWSTL

Appleton Intl

mié. 2/18

6:20 am-10:43 am

1 stop4h 23m

$137

AppletonSt. Louis

ATW - STL

ATWSTL

Appleton Intl

mié. 2/11

6:10 am-10:43 am

1 stop4h 33m

$137

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/15

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 May is currently the most expensive (average of $262). 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 enero 15, 2026.

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 65% on your trip compared to booking a flight at noon.

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 enero 15, 2026.
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
8,051 reviews

Boarding

8.1

Crew

8.5

Food

7.2

Entertainment

7.8

Comfort

7.9

Overall

7.9

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
8,051 reviews
Delta
7.9
Good
8,051 reviews

Boarding

8.1

Crew

8.5

Food

7.2

Entertainment

7.8

Comfort

7.9

Overall

7.9

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
9,164 reviews
Delta
7.9
Good
8,051 reviews

Boarding

8.1

Crew

8.5

Food

7.2

Entertainment

7.8

Comfort

7.9

Overall

7.9

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
11,136 reviews
Delta
7.9
Good
8,051 reviews

Boarding

8.1

Crew

8.5

Food

7.2

Entertainment

7.8

Comfort

7.9

Overall

7.9

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 28 times in the past calendar month.

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

    Delta can get you from Oshkosh to St. Louis in just under 4h 59m. Your travel time can differ by up to . Oshkosh and St. Louis are separated by a distance of 392 mi.

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

    The cheapest flight price from Oshkosh to St. Louis is $88. On average you can expect to pay $313. 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 May is currently the most expensive (average of $262). 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
Swansea
Fairview Heights
Maryland Heights
Collinsville
Eureka
Glencoe
Chesterfield
Alton
Farmington
Festus

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Oshkosh to St. Louis

See prices for flight routes from nearby airports that may be better suited for you.
O'Hare Intl to Kansas City flights
Minneapolis to St. Louis flights
O'Hare Intl to St. Louis flights
Minneapolis to Kansas City flights
O'Hare Intl to Springfield flights
O'Hare Intl to Columbia flights
Milwaukee to Kansas City flights
Milwaukee to St. Louis flights
Appleton to Kansas City flights
Madison to Kansas City flights
Minneapolis to Springfield flights
Appleton to St. Louis flights
Madison to Columbia flights
Minneapolis to Branson flights
O'Hare Intl to Cape Girardeau flights
Duluth to Kansas City flights
Madison to St. Louis flights
Green Bay to Kansas City flights
Wausau to Kansas City flights
Green Bay to St. Louis flights
Milwaukee to Springfield flights
Wausau to St. Louis flights
Escanaba to Kansas City flights
Milwaukee to Joplin flights
La Crosse to St. Louis flights
Green Bay to Springfield flights
Appleton to Springfield flights
Green Bay to Joplin flights
La Crosse to Columbia flights
O'Hare Intl to Branson flights
La Crosse to Kansas City flights
Wausau to Springfield flights
Rhinelander to St. Louis flights

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 enero 15, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$156Average$351FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$158Average$376FlexibilityNo cancel feeOn-time71%
DeltaCheapest$213Average$382FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$227Average$371FlexibilityNo cancel feeOn-time63%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.