Cheap Flights from Seattle (SEA) to Oshkosh (OSH)

Popular airlines from Seattle-Tacoma International Airport (SEA) to Oshkosh, WI (OSH-Wittman Regional)

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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 $337
ATW
Appleton Intl.
Cheapest
Average driving time to city center25 min
Flights from $337

Frequently asked questions

How much does a flight from Seattle - Tacoma Intl. Airport (SEA) to Oshkosh, WI (OSH-Wittman Regional) cost?
Grab a cheap one-way flight or cheap return flight from Seattle - Tacoma Intl. Airport (SEA) to Oshkosh, WI (OSH-Wittman Regional) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Seattle - Tacoma Intl. Airport (SEA) to Oshkosh, WI (OSH-Wittman Regional)?
Planning your trip for is a great way to save, as it's the cheapest month for flights between SEA and OSH. You'll often find the lowest prices during off-peak months.
What is the cheapest airline that flies from Seattle - Tacoma Intl. Airport (SEA) to Oshkosh, WI (OSH-Wittman Regional)?
To find the cheapest airline that'll fly you from SEA to OSH, use Expedia's filter tool. Customize your search based on what matters most to you, such as preferred carriers and number of stops. You can then sort your results by "Price (lowest to highest)" to discover the cheapest flight right away.
How many flights per day from Seattle - Tacoma Intl. Airport (SEA) to Oshkosh, WI (OSH-Wittman Regional)?
You'll have to take a flight with a layover if you're traveling from Seattle - Tacoma Intl. Airport (SEA) to Oshkosh, WI (OSH-Wittman Regional). There are no daily direct flights on this route. However, just filter your search to include one or two stops to discover the best option for your trip.
What day of the week has the most flights from SEA to OSH?
Usually you'll find the widest variety of flight choices on a Friday. Tuesdays tend to be the quietest.* But this can vary based on the time of year, carrier 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 Seattle - Tacoma Intl. Airport (SEA) to Oshkosh, WI (OSH-Wittman Regional)?
To avoid potential delays on the Seattle - Tacoma Intl. Airport (SEA) to Oshkosh, WI (OSH-Wittman Regional) route, travel before 3 PM. Departures after this time have a 22% higher chance of cancellation.**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 Seattle - Tacoma Intl. Airport (SEA) to Oshkosh, WI (OSH-Wittman Regional) last-minute?
Last-minute fares from SEA to OSH are usually more expensive. For the lowest prices, start searching for flights as soon as possible. That being said, if you're flexible with your travel plans, it's possible to land a cheap fare right before you leave.
Is it cheaper to book a SEA to OSH flight and hotel package?
Securing a SEA to OSH flight and hotel package is typically cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your trip all in one place. Select from our impressive range of accommodations and then add activities, car rentals and flights to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Seattle - Tacoma Intl. Airport (SEA) to Oshkosh, WI (OSH-Wittman Regional)?
If you booked your SEA to OSH flight in the last 24 hours, you may be able to cancel or modify it without fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes after that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you want more information.

Travel information

Origin airport
Seattle - Tacoma Intl.
Destination airport
Wittman Regional
Distance
1632 mi

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Seattle to Oshkosh Flights

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

 

The best time to book a flight from Seattle to Oshkosh

Sunday is one of the best days to book for cheap flights from Seattle 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 Seattle 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 Seattle 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 Seattle 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 Seattle 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.

 

Seattle to Oshkosh Flights

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