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

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

MKE — STL
Oct 24 — Oct 311
Sat 10/24
Sat 10/31
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.

Find flight deals from Oshkosh to St. Louis

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Popular in

July

Cheapest in

November

Average price

$323
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
Highest demand for flights based on searches. 24% potential increase in price ($108 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 7% potential price decrease ($26 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2026
Search Deals

Cheapflights Insights

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

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

A simple way to save on the total cost of your ticket is to fly from Oshkosh to St. Louis at noon. If you’re flexible enough to do this you can expect to save up to 23% on your trip compared to booking a flight in the morning.

Reviews of airlines servicing St. Louis

Read reviews from past customers who have flown Delta,United Airlines, andAmerican 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
7.8
Good
8,595 reviews

Overall

7.8

Comfort

7.8

Food

7.2

Crew

8.5

Entertainment

7.8

Boarding

8.1

Reviews

1 / 20
4.0
Okay

Jennifer,Sep 2026

ORD - LGA

The flight crew was 30 minutes late to an am flight and then that caused a delay
Delta
7.8
Good
8,595 reviews
Delta
7.8
Good
8,595 reviews

Overall

7.8

Comfort

7.8

Food

7.2

Crew

8.5

Entertainment

7.8

Boarding

8.1

Reviews

1 / 20
4.0
Okay

Jennifer,Sep 2026

ORD - LGA

The flight crew was 30 minutes late to an am flight and then that caused a delay
United Airlines
7.4
Good
10,233 reviews
Delta
7.8
Good
8,595 reviews

Overall

7.8

Comfort

7.8

Food

7.2

Crew

8.5

Entertainment

7.8

Boarding

8.1

Reviews

1 / 20
4.0
Okay

Jennifer,Sep 2026

ORD - LGA

The flight crew was 30 minutes late to an am flight and then that caused a delay
American Airlines
7.0
Good
12,075 reviews
Delta
7.8
Good
8,595 reviews

Overall

7.8

Comfort

7.8

Food

7.2

Crew

8.5

Entertainment

7.8

Boarding

8.1

Reviews

1 / 20
4.0
Okay

Jennifer,Sep 2026

ORD - LGA

The flight crew was 30 minutes late to an am flight and then that caused a delay

Related info for your journey

  • 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 11 times in the past calendar month.

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

    The cheapest flight price from Oshkosh to St. Louis is $148. On average you can expect to pay $331. The most popular route, (Appleton Intl - Lambert-St Louis), can usually be booked for $319.

  • 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.

See more FAQs

Traveling to a place near St. Louis?

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

Browse thousands of different options on Cheapflights for your next trip

Top 4 airlines flying from Oshkosh to St. Louis

AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$174Average$433FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$228Average$374FlexibilityNo cancel feeOn-time71%
DeltaCheapest$228Average$380FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$283Average$404FlexibilityNo 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.