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St. Louis

$199+ Cheap flights from Oshkosh, WI to St. Louis (STL)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/8. Fares are subject to change and may not be available on all flights or dates of travel.
MKE — STL
Jan 26 — Feb 21
Sun 1/26
Sun 2/2
1 adult, Economy
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The best prices from Oshkosh to Lambert-St Louis are usually found in February or May, booked 35 days in advance, depart on a Saturday or Wednesday and return on a Monday

Cheap flight deals from Oshkosh to St. Louis

Discover tips and strategies to find the most affordable flight options for your journey from Oshkosh (OS9) to St. Louis (STL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 21, 2025.

Round-trip from

$199
(United Airlines)

Popular in

November

Cheapest in

February

Average price

$340
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).
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Cheapest flight prices on average. 2% potential price decrease ($8 potential savings vs. average RT price).
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Average for round-trip flights in January 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 January 21, 2025.

This United Airlines deal was found by Cheapflights users on 1/21. 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.
Sat 2/83:45 pmATW - STL
1 stop6h 00mUnited Airlines
Tue 2/115:30 pmSTL - ATW
1 stop3h 24mUnited Airlines
Deal found 1/21$199
This American Airlines deal was found by Cheapflights users on 1/21. 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 2/812:30 pmATW - STL
2 stops11h 16mAmerican Airlines
Tue 2/115:40 amSTL - ATW
1 stop5h 32mAmerican Airlines
Deal found 1/21$204
This Delta deal was found by Cheapflights users on 1/20. 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.
Mon 2/104:20 pmATW - STL
1 stop6h 49mDelta
Mon 2/176:00 amSTL - ATW
1 stop5h 30mDelta
Deal found 1/20$229

Find flights from Oshkosh to St. Louis within your budget

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 January 21, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

AppletonSt. Louis

ATW - STL

ATWSTL

Appleton Intl

Sat 2/8

3:45 pm-9:45 pm

1 stop6h 00m

Lambert-St Louis

Tue 2/11

5:30 pm-8:54 pm

1 stop3h 24m

$199

AppletonSt. Louis

ATW - STL

ATWSTL

Appleton Intl

Sat 2/8

12:30 pm-11:46 pm

2 stops11h 16m

Lambert-St Louis

Tue 2/11

5:40 am-11:12 am

1 stop5h 32m

$204

AppletonSt. Louis

ATW - STL

ATWSTL

Appleton Intl

Mon 2/10

4:20 pm-11:09 pm

1 stop6h 49m

Lambert-St Louis

Mon 2/17

6:00 am-11:30 am

1 stop5h 30m

$229

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/21

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.

Travel insights for flights from Oshkosh to St. Louis

Get recent, data-driven insights about flights from Oshkosh to St. Louis including ideal travel times, pricing trends, and more.

How far ahead should I book a flight from Oshkosh to St. Louis?

Use this chart to determine the optimal time to book a round-trip flight from Oshkosh to St. Louis. Price data was last updated on January 17, 2025.

The best time to book flights from Oshkosh to St. Louis is 35 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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 January 21, 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.

Rainfall in St. Louis by month

Plan your trip to St. Louis by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in St. Louis ranges from 2.2 - 4.7 inches per month. May is typically the wettest month, when rainfall can reach 4.7 in. February is typically the driest time to visit St. Louis when rainfall is around 2.2 in.

Temperature in St. Louis by month

Plan your trip to St. Louis by taking into account the average temperature totals by month.

If weather is an important factor for your trip to St. Louis, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 32.0 F).

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 January 21, 2025.
To help decide which airline to fly from Oshkosh to St. Louis, see what other customers have to say about American Airlines and Delta. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
8,521 reviews

Boarding

8.2

Food

7.3

Overall

8.0

Crew

8.6

Comfort

8.0

Entertainment

7.9

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Delta
8.0
Very good
8,521 reviews
Delta
8.0
Very good
8,521 reviews

Boarding

8.2

Food

7.3

Overall

8.0

Crew

8.6

Comfort

8.0

Entertainment

7.9

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

United Airlines
7.4
Good
8,985 reviews
Delta
8.0
Very good
8,521 reviews

Boarding

8.2

Food

7.3

Overall

8.0

Crew

8.6

Comfort

8.0

Entertainment

7.9

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
8,521 reviews

Boarding

8.2

Food

7.3

Overall

8.0

Crew

8.6

Comfort

8.0

Entertainment

7.9

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

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 10 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 $167. On average you can expect to pay $345. The most popular route, (Appleton Intl - Lambert-St Louis), can usually be booked for $219.

  • 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 Oshkosh?

Book flights to Oshkosh if you plan to visit one of these locations
Fenton
Fairview Heights
Maryland Heights
Collinsville
Wentzville
Eureka
St. Peters
Festus
Alton
Farmington
Chesterfield

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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 January 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$157Average$276FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$158Average$354FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$204Average$379FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$244Average$322FlexibilityNo cancel feeOn-time63%
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