$164+ Cheap flights from Ontario (ONT) to Oshkosh, WI
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 5/29. Fares are subject to change and may not be available on all flights or dates of travel.
Find cheap flights from Ontario to Oshkosh 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 Ontario to Oshkosh
Keep the following information in mind while searching for Ontario to Oshkosh flight deals. Data was last updated April 30, 2025.
Most accurate provider | Mytrip 3 stars |
|---|---|
Most trusted provider | Mytrip 3 stars |
Round-trip from | $348 (Delta) |
One-way from | $164 (United Airlines) |
Popular in | October |
Cheapest in | January |
Average price | $730 |
Find flight deals from Ontario to Oshkosh
Cheapest flights from Ontario to OshkoshExplore the most affordable flight options available from Ontario to Oshkosh. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 30, 2025.
Explore the most affordable flight options available from Ontario to Oshkosh. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 30, 2025.
This Delta deal was found by Cheapflights users on 4/27. 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.
This United Airlines deal was found by Cheapflights users on 4/27. 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.
This American Airlines deal was found by Cheapflights users on 4/29. 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.
Cheapflights Fare Finder
Customize your flight search to find flights from Ontario to Oshkosh 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 April 30, 2025.
Use the filters below to find and compare flights from Ontario to Oshkosh that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
OntarioAppleton
ONT - ATW
ONTATW
Ontario
Sat 8/9
11:40 am-10:31 pm
1 stop8h 51m
Appleton Intl
Fri 8/15
5:20 pm-11:43 pm
2 stops8h 23m
OntarioAppleton
ONT - ATW
ONTATW
Ontario
Sat 8/9
7:00 am-4:47 pm
1 stop7h 47m
Appleton Intl
Fri 8/15
3:45 pm-10:11 pm
1 stop8h 26m
OntarioAppleton
ONT - ATW
ONTATW
Ontario
Thu 5/29
5:10 am-7:10 pm
2 stops12h 00m
Best time to book a flight from Ontario to Oshkosh
Have a flexible travel schedule? Discover the best time to fly to Oshkosh from Ontario with our price prediction graph.
Cheapflights Insights
Everything you need to know about your flight from Ontario to Oshkosh
What is the cheapest month to book a flight from Ontario to Oshkosh?
Currently, February is the cheapest month in which you can book a flight from Ontario to Oshkosh (average of $280). Flying from Ontario to Oshkosh in June is currently the most expensive (average of $376). 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 ONT to OS9?
Find hourly flight availability from Ontario to Oshkosh. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 30, 2025.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Ontario to Oshkosh as you normally would.
What is the cheapest day to fly from Ontario to Oshkosh?
Use this chart to determine the cheapest time to fly round-trip from Ontario to Oshkosh. Price data was last updated on December 16, 2024.
Travelers seeking maximum savings on their Ontario to Oshkosh flight should consider departing on Saturday at noon when fares are most often at their lowest. Monday mornings flights should be avoided if possible as fares are typically the most expensive at this time.
Rainfall in Oshkosh by month
Plan your trip to Oshkosh by taking into account the average rainfall totals by month.
In terms of precipitation, rainfall in Oshkosh ranges from 1.1 - 3.8 inches per month. June is typically the wettest month, when rainfall can reach 3.8 in. February is typically the driest time to visit Oshkosh when rainfall is around 1.1 in.
Temperature in Oshkosh by month
Plan your trip to Oshkosh by taking into account the average temperature totals by month.
If weather is an important factor for your trip to Oshkosh, 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 71.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 17.6 F).
Reviews of airlines servicing Oshkosh
Get insights into the airlines that provide service to Oshkosh. 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 Oshkosh. Reviews last updated April 30, 2025.
Boarding
Crew
Entertainment
Overall
Food
Comfort
Reviews
Michael,Sep 2023
SMF - ATL
Boarding
Crew
Entertainment
Overall
Food
Comfort
Reviews
Michael,Sep 2023
SMF - ATL
Boarding
Crew
Entertainment
Overall
Food
Comfort
Reviews
Michael,Sep 2023
SMF - ATL
Related info for your journey
Find useful and relevant information for your journey from Ontario to Oshkosh. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for Ontario to Oshkosh
See prices for flight routes from nearby airports that may be better suited for you.
Top 5 airlines flying from Ontario to Oshkosh
Discover the top 5 airlines that operate flights from Ontario to Oshkosh. 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 April 30, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$72 | Average$236 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$279 | Average$465 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$288 | Average$520 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$288 | Average$515 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$326 | Average$417 | FlexibilityNo cancel fee | On-time63% |