Cheap Flights from Champaign (CMI) to Oshkosh (OSH)

Popular airlines from Champaign, IL (CMI-University Of Illinois Urbana-Champaign Williard) to Oshkosh, WI (OSH-Wittman Regional)

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Frequently asked questions

How much does a flight from University Of Illinois Urbana-Champaign Williard Airport (CMI) to Oshkosh, WI (OSH-Wittman Regional) cost?
Snag a cheap one-way flight or cheap return flight from University Of Illinois Urbana-Champaign Williard Airport (CMI) to Oshkosh, WI (OSH-Wittman Regional) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from University Of Illinois Urbana-Champaign Williard Airport (CMI) to Oshkosh, WI (OSH-Wittman Regional)?
The cheapest month to fly from CMI to OSH is , when demand is low. Off-peak season is often when better flight deals are available between these airports.
What is the cheapest airline that flies from University Of Illinois Urbana-Champaign Williard Airport (CMI) to Oshkosh, WI (OSH-Wittman Regional)?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from CMI to OSH. Then, sort your results by "Price (lowest to highest)" to snap up a good deal.
How many flights per day from University Of Illinois Urbana-Champaign Williard Airport (CMI) to Oshkosh, WI (OSH-Wittman Regional)?
You'll have to hop on a flight with a layover if you're traveling from University Of Illinois Urbana-Champaign Williard Airport (CMI) to Oshkosh, WI (OSH-Wittman Regional). Direct flights don't operate daily on this route. However, simply filter your search to include one or more stops to find an option that works for you.
What day of the week has the most flights from CMI to OSH?
Usually you'll find the largest variety of flight choices on a Friday. Tuesdays are often the quietest.* However, this can change depending on the season, airline and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from University Of Illinois Urbana-Champaign Williard Airport (CMI) to Oshkosh, WI (OSH-Wittman Regional)?
To avoid possible delays on the University Of Illinois Urbana-Champaign Williard Airport (CMI) to Oshkosh, WI (OSH-Wittman Regional) route, travel before 3 PM. Departures after this time have a 22% higher chance of being canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from University Of Illinois Urbana-Champaign Williard Airport (CMI) to Oshkosh, WI (OSH-Wittman Regional) last-minute?
Last-minute fares from CMI to OSH are typically more expensive. For the lowest rates, start looking for flights well ahead of time. That being said, if you're flexible with your travel dates, you may land a cheap ticket right before your journey.
Is it cheaper to book a CMI to OSH flight and hotel package?
You'll generally save money by booking a CMI to OSH flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's simple to manage it all in one place. Once you've selected your ideal flights and accommodations, consider adding extras such as tours, car rentals and activities.
Can I cancel or change the date of my flight from University Of Illinois Urbana-Champaign Williard Airport (CMI) to Oshkosh, WI (OSH-Wittman Regional)?
Typically, it's possible to reschedule or cancel your CMI to OSH flight. However, if it's been more than 24 hours since booking, additional charges may apply. Check your airline's policies in your itinerary to see what changes are allowed and if any costs are involved. You'll also find more information on our Customer Service portal.

Travel information

Origin airport
University Of Illinois Urbana-Champaign Williard
Destination airport
Wittman Regional
Distance
273 mi

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Champaign to Oshkosh Flights

The cheapest times to fly from Champaign to Oshkosh

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Champaign to Oshkosh are during the month of . You can find some of the cheapest flights from Champaign to Oshkosh with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Champaign to Oshkosh

Sunday is one of the best days to book for cheap flights from Champaign to Oshkosh: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Champaign to Oshkosh

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Champaign to Oshkosh in 2026. You can also book with separate airlines for your outbound and return journeys, from one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Champaign to Oshkosh flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Champaign to Oshkosh airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Champaign to Oshkosh Flights

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