Cheap Flights from Washington (IAD) to Oshkosh (OSH)

Popular airlines from Washington Dulles Intl. Airport (IAD) to Oshkosh, WI (OSH-Wittman Regional)

Alternative airports near Oshkosh

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Appleton Intl. ATW. Cheapest option available. Average driving time to city center is 25 minutes. Flights from $264
ATW
Appleton Intl.
Cheapest
Average driving time to city center25 min
Flights from $264
Flights from Washington (IAD) to Oshkosh (OSH)
Origin airport
Washington Dulles Intl.
Destination airport
Wittman Regional
Distance
671 mi

Washington to Oshkosh Flights

The cheapest times to fly from Washington 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 Washington to Oshkosh are during the month of . You can find some of the cheapest flights from Washington to Oshkosh with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Washington to Oshkosh

Sunday is one of the best days to book for cheap flights from Washington 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 Washington 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 Washington to Oshkosh in 2025. 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 Washington 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 Washington 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.

 

Frequently asked questions

How much does a flight from Washington Dulles Intl. Airport (IAD) to Oshkosh, WI (OSH-Wittman Regional) cost?
Snag a cheap one-way flight or cheap return flight from Washington Dulles Intl. Airport (IAD) to Oshkosh, WI (OSH-Wittman Regional) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from Washington Dulles Intl. Airport (IAD) to Oshkosh, WI (OSH-Wittman Regional)?
Flying in may help you find better deals, as it's the cheapest month for flights between IAD and OSH. You'll typically find the lowest prices during off-peak months.
What is the cheapest airline that flies from Washington Dulles Intl. Airport (IAD) to Oshkosh, WI (OSH-Wittman Regional)?
Use the filters on Expedia to compare airlines and find the most affordable carrier that'll take you from IAD to OSH. Then, sort your results by "Price (lowest to highest)" to snap up a great deal.
How many flights per day from Washington Dulles Intl. Airport (IAD) to Oshkosh, WI (OSH-Wittman Regional)?
There are no daily nonstop flights departing from Washington Dulles Intl. Airport (IAD) to Oshkosh, WI (OSH-Wittman Regional). But you can choose flights with layovers. Filter your search results on Expedia to include one or more stops, and you'll be on your way in no time.
What day of the week has the most flights from IAD to OSH?
Friday is generally the busiest day for flights, while Tuesday tends to be the quietest.* Just remember that flight schedules can vary depending on various factors, such as the time of year and carrier.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Washington Dulles Intl. Airport (IAD) to Oshkosh, WI (OSH-Wittman Regional)?
To reach Oshkosh, WI (OSH-Wittman Regional) on schedule, select a flight that leaves from Washington Dulles Intl. Airport (IAD) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this time.**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 Washington Dulles Intl. Airport (IAD) to Oshkosh, WI (OSH-Wittman Regional) last-minute?
Waiting until just before your departure to book your flight from IAD to OSH often results in higher prices. While you may find some last-minute offers, they're not always guaranteed. Keep your travel plans flexible for the best chance of snagging a bargain.
Is it cheaper to book an IAD to OSH flight and hotel package?
Compared with arranging hotels and flights separately, booking an IAD to OSH flight and hotel package with Expedia could lead to significant savings. Better yet, having it all in one place will take the stress out of planning your trip. Just secure your flights and select from our wide range of stays, then personalize your trip with extras like activities and car rentals.
Can I cancel or change the date of my flight from Washington Dulles Intl. Airport (IAD) to Oshkosh, WI (OSH-Wittman Regional)?
It's generally possible to reschedule or cancel your IAD to OSH flight. However, for bookings made more than 24 hours ago, additional fees may apply. Check your airline's policies in your itinerary to see what changes are allowed and whether any costs are involved. You'll also find further details on our Customer Service portal.

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*Available to One Key members.