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.

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).

What is the cheapest time of day to fly from IAD to OS9?

When flying from Washington, D.C. Dulles Intl Airport to Oshkosh, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Can I find deals for flights from Dulles Intl to Oshkosh that include hotel bookings?

Yes. In addition to deals on Dulles Intl to Oshkosh flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Dulles Intl to Oshkosh?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Dulles Intl to Oshkosh.

Can I find deals for business class flights from Dulles Intl to Oshkosh?

Yes. Cheapflights offers flight deals from Dulles Intl to Oshkosh by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

Find Cheap Flights from Washington, D.C. Dulles Intl Airport to Oshkosh

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Find flight deals from Dulles Intl to Oshkosh

Most accurate provider	FlightHub 3 stars
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Popular in	November
Cheapest in	March
Average price	$458

Provider with most accurate pricing for Washington, D.C. (WAS)-Appleton Intl flight deals.

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Highest demand for flights based on searches. 23% potential increase in price ($135 potential increase over avg. RT price).

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Cheapest flight prices on average. 7% potential price decrease ($31 potential savings vs. average RT price).

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Average for round-trip flights in October 2026

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Reviews of airlines servicing Oshkosh

Peruse reviews from past customers who have flown with Delta and United Airlines from Washington, D.C. Dulles Intl Airport to Oshkosh to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

7.8

Good

8,694 reviews

Reviews

1 / 20

6.0

Good

Ellen,Oct 2026

GRR - ATL

The flight was delayed more then 30 minutes after I hurried and stressed to get to my connecting gate in Atlanta.

Delta

7.8

Good

8,694 reviews

Delta

7.8

Good

8,694 reviews

Reviews

1 / 20

6.0

Good

Ellen,Oct 2026

GRR - ATL

The flight was delayed more then 30 minutes after I hurried and stressed to get to my connecting gate in Atlanta.

United Airlines

7.3

Good

10,453 reviews

Delta

7.8

Good

8,694 reviews

Reviews

1 / 20

6.0

Good

Ellen,Oct 2026

GRR - ATL

The flight was delayed more then 30 minutes after I hurried and stressed to get to my connecting gate in Atlanta.

Related info for your journey

Can I find deals for flights from Dulles Intl to Oshkosh that include hotel bookings?
Yes. In addition to deals on Dulles Intl to Oshkosh flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Dulles Intl to Oshkosh?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Dulles Intl to Oshkosh.
Can I find deals for business class flights from Dulles Intl to Oshkosh?
Yes. Cheapflights offers flight deals from Dulles Intl to Oshkosh by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

Browse thousands of different options on Cheapflights for your next trip

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Top 2 airlines flying from Dulles Intl to Oshkosh

Airline	Cheapest	Average	Flexibility	On-time
Delta	Cheapest$268	Average$388	FlexibilityNo cancel fee	On-timeN/A
United Airlines	Cheapest$278	Average$405	FlexibilityNo cancel fee	On-time69%

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Find cheap flights from Dulles Intl to Oshkosh with Cheapflights

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3. Compare prices and book

Find flight deals from Dulles Intl to Oshkosh

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Reviews of airlines servicing Oshkosh

Peruse reviews from past customers who have flown with Delta and United Airlines from Washington, D.C. Dulles Intl Airport to Oshkosh to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Can I find deals for flights from Dulles Intl to Oshkosh that include hotel bookings?

How can I find direct flights from Dulles Intl to Oshkosh?

Can I find deals for business class flights from Dulles Intl to Oshkosh?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Dulles Intl to Oshkosh

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Complete your trip

Complete your trip to Oshkosh by adding a car rental and/or hotel reservation to your travel itinerary.

Search flights from Dulles Intl to Oshkosh by cabin class

Find flights from Dulles Intl to Oshkosh, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Dulles Intl and Oshkosh flights

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Cheap flights from Dulles Intl (IAD) to Oshkosh, WI

Find cheap flights from Dulles Intl to Oshkosh with Cheapflights

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Find flight deals from Dulles Intl to Oshkosh

Most accurate provider

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Average price

Reviews of airlines servicing Oshkosh

Peruse reviews from past customers who have flown with Delta and United Airlines from Washington, D.C. Dulles Intl Airport to Oshkosh to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Can I find deals for flights from Dulles Intl to Oshkosh that include hotel bookings?

How can I find direct flights from Dulles Intl to Oshkosh?

Can I find deals for business class flights from Dulles Intl to Oshkosh?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Dulles Intl to Oshkosh

See prices for flight routes from nearby airports that may be better suited for you.

Complete your trip

Complete your trip to Oshkosh by adding a car rental and/or hotel reservation to your travel itinerary.

Search flights from Dulles Intl to Oshkosh by cabin class

Find flights from Dulles Intl to Oshkosh, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Dulles Intl and Oshkosh flights

Browse other Dulles Intl and Oshkosh flight options. Last updated on October 30, 2026.

Other flights from Dulles Intl

Browse through other flights departing from Dulles Intl. Flights are based on user searches made on Cheapflights and were last updated on October 30, 2026.

Popular flight searches

Check out other popular destinations found by fellow travelers in 2026

Dulles Intl to Oshkosh flights

Consider these flights traveling from Dulles Intl to Oshkosh.

Top 2 airlines flying from Dulles Intl to Oshkosh

100% Free

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