HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Oshkosh

$153+ Cheap flights from Dulles Intl (IAD) 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 2/7. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — MKE
Jan 22 — Jan 291
Thu 1/22
Thu 1/29
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Dulles Intl 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 Dulles Intl to Oshkosh

Cheapest flights from Dulles Intl to Oshkosh
Explore the most affordable flight options available from Dulles Intl to Oshkosh. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 23, 2025.

This Delta deal was found by Cheapflights users on 12/21. 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.
Mon 12/224:17 pmIAD - ATW
1 stop6h 24mDelta
Thu 1/86:03 pmATW - IAD
1 stop4h 03mDelta
Deal found 12/21$324
This Delta deal was found by Cheapflights users on 12/22. 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.
Tue 12/306:00 amIAD - ATW
1 stop5h 01mDelta
Sun 1/45:15 pmATW - IAD
1 stop4h 53mDelta
Deal found 12/22$359
This United Airlines deal was found by Cheapflights users on 12/22. 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.
Tue 12/308:15 amIAD - ATW
1 stop7h 18mUnited Airlines
Sat 1/35:23 pmATW - IAD
1 stop5h 52mUnited Airlines
Deal found 12/22$384
This United Airlines deal was found by Cheapflights users on 12/21. 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.
Mon 12/221:00 pmIAD - ATW
1 stop7h 04mUnited Airlines
Thu 1/88:00 amATW - IAD
2 stops11h 59mUnited Airlines
Deal found 12/21$487
This American Airlines deal was found by Cheapflights users on 12/22. 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.
Mon 12/224:29 pmIAD - ATW
1 stop7h 17mAmerican Airlines
Thu 1/86:00 amATW - IAD
1 stop5h 36mAmerican Airlines
Deal found 12/22$502
This United Airlines deal was found by Cheapflights users on 12/22. 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.
Thu 12/258:15 amIAD - ATW
1 stop5h 00mUnited Airlines
Mon 12/295:23 pmATW - IAD
1 stop5h 52mUnited Airlines
Deal found 12/22$503
This American Airlines deal was found by Cheapflights users on 12/22. 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.
Tue 12/304:29 pmIAD - ATW
1 stop7h 17mAmerican Airlines
Sun 1/49:38 pmATW - IAD
2 stops10h 04mAmerican Airlines
Deal found 12/22$507
This United Airlines deal was found by Cheapflights users on 12/21. 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.
Mon 12/228:15 amIAD - ATW
1 stop7h 18mUnited Airlines
Fri 1/28:10 amATW - IAD
1 stop7h 14mUnited Airlines
Deal found 12/21$534

Find flight deals from Dulles Intl to Oshkosh

Keep the following information in mind while searching for Dulles Intl to Oshkosh flight deals. Data was last updated December 23, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$269
(United Airlines)

One-way from

$153
(Kiwi.com)

Popular in

April

Cheapest in

October

Average price

$438
Provider with most accurate pricing for Washington, D.C. (WAS)-Appleton Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Washington, D.C. (WAS)-Appleton Intl flights.
Search Deals
From Washington, D.C. Dulles Intl to Oshkosh
Search Deals
One-way flight from Washington, D.C. Dulles Intl to Oshkosh
Search Deals
Highest demand for flights based on searches. 20% potential increase in price ($114 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($26 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Dulles Intl 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 December 23, 2025.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Oshkosh that are best for you.

Fly from

Dulles Intl

Fly to

Oshkosh

Route

Depart

Return

Price

Washington, D.C.Appleton

IAD - ATW

IADATW

Washington, D.C. Dulles Intl

Wed 1/21

8:20 am-12:00 pm

1 stop4h 40m

Appleton Intl

Wed 1/28

2:45 pm-9:17 pm

1 stop5h 32m

$269

Washington, D.C.Appleton

IAD - ATW

IADATW

Washington, D.C. Dulles Intl

Wed 1/21

11:34 am-5:51 pm

2 stops7h 17m

Appleton Intl

Wed 1/28

6:00 am-12:36 pm

1 stop5h 36m

$274

Washington, D.C.Appleton

IAD - ATW

IADATW

Washington, D.C. Dulles Intl

Thu 1/8

8:20 am-12:00 pm

1 stop4h 40m

Appleton Intl

Sat 1/10

3:39 pm-9:17 pm

1 stop4h 38m

$344

Washington, D.C.Appleton

IAD - ATW

IADATW

Washington, D.C. Dulles Intl

Wed 1/7

8:20 am-12:00 pm

1 stop4h 40m

Appleton Intl

Sat 1/10

3:39 pm-9:17 pm

1 stop4h 38m

$349

Washington, D.C.Appleton

IAD - ATW

IADATW

Washington, D.C. Dulles Intl

Tue 12/30

6:00 am-10:01 am

1 stop5h 01m

Appleton Intl

Sun 1/4

5:15 pm-11:08 pm

1 stop4h 53m

$359

Washington, D.C.Appleton

IAD - ATW

IADATW

Washington, D.C. Dulles Intl

Tue 12/30

8:15 am-2:33 pm

1 stop7h 18m

Appleton Intl

Sat 1/3

5:23 pm-12:15 am

1 stop5h 52m

$384

Washington, D.C.Appleton

IAD - ATW

IADATW

Washington, D.C. Dulles Intl

Thu 12/25

8:15 am-12:15 pm

1 stop5h 00m

Appleton Intl

Mon 12/29

5:23 pm-12:15 am

1 stop5h 52m

$503

Washington, D.C.Appleton

IAD - ATW

IADATW

Washington, D.C. Dulles Intl

Tue 12/30

4:29 pm-10:46 pm

1 stop7h 17m

Appleton Intl

Sun 1/4

9:38 pm-8:42 am

2 stops10h 04m

$507

Washington, D.C.Appleton

IAD - ATW

IADATW

Washington, D.C. Dulles Intl

Sat 2/7

11:39 am-10:54 pm

2 stops36h 15m

$153

Washington, D.C.Appleton

IAD - ATW

IADATW

Washington, D.C. Dulles Intl

Sat 2/7

8:20 am-12:00 pm

1 stop4h 40m

$174

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/20

Showing 1-10 of 16 results
1
2

Best time to book a flight from Dulles Intl to Oshkosh

Have a flexible travel schedule? Discover the best time to fly to Oshkosh from Dulles Intl with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Washington, D.C. Dulles Intl Airport to Oshkosh

What is the cheapest month to book a flight from Washington, D.C. Dulles Intl Airport to Oshkosh?

Currently, May is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Oshkosh (average of $153). Flying from Washington, D.C. Dulles Intl Airport to Oshkosh in December is currently the most expensive (average of $262). 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 IAD to OS9?

Find hourly flight availability from Dulles Intl 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 December 23, 2025.

Unlike in the morning, when flights are generally more expensive, you can save up to 40% on flights from Washington, D.C. Dulles Intl Airport to Oshkosh by exploring options for tickets in the afternoon.

What is the cheapest day to fly from Washington, D.C. Dulles Intl Airport to Oshkosh?

Use this chart to determine the cheapest time to fly round-trip from Dulles Intl to Oshkosh. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Washington, D.C. Dulles Intl Airport to Oshkosh flight should consider departing on Tuesday evenings when fares are most often at their lowest. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

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 December 23, 2025.
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
7.9
Good
8,014 reviews

Boarding

8.1

Crew

8.5

Comfort

7.9

Food

7.3

Overall

7.9

Entertainment

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,014 reviews
Delta
7.9
Good
8,014 reviews

Boarding

8.1

Crew

8.5

Comfort

7.9

Food

7.3

Overall

7.9

Entertainment

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
United Airlines
7.4
Good
9,106 reviews
Delta
7.9
Good
8,014 reviews

Boarding

8.1

Crew

8.5

Comfort

7.9

Food

7.3

Overall

7.9

Entertainment

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Related info for your journey

Find useful and relevant information for your journey from Dulles Intl to Oshkosh. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Washington, D.C. Dulles Intl Airport to Oshkosh?

    Airlines like United Airlines, American Airlines, and Delta fly from Washington, D.C. Dulles Intl Airport to Oshkosh in about 4h 40m. The time it takes to get you to your destination can typically vary by up to 2h 37m. Airlines will cover a distance of 678 mi. This flight may include one or multiple stops.

  • 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.

  • What is the cheapest month to book a flight from Washington, D.C. Dulles Intl Airport to Oshkosh?

    Currently, May is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Oshkosh (average of $153). Flying from Washington, D.C. Dulles Intl Airport to Oshkosh in December is currently the most expensive (average of $262). 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.

See more FAQs

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.
Baltimore to O'Hare Intl flights
Reagan-National to O'Hare Intl flights
Dulles Intl to O'Hare Intl flights
Reagan-National to Minneapolis flights
Dulles Intl to Minneapolis flights
Baltimore to Minneapolis flights
Dulles Intl to Milwaukee flights
Baltimore to Milwaukee flights
Reagan-National to Milwaukee flights
Dulles Intl to Appleton flights
Baltimore to Green Bay flights
Baltimore to Appleton flights
Dulles Intl to Madison flights
Reagan-National to Madison flights
Baltimore to Madison flights
Dulles Intl to Green Bay flights
Reagan-National to Green Bay flights
Reagan-National to Appleton flights
Dulles Intl to Eau Claire flights
Reagan-National to Eau Claire flights
Baltimore to Eau Claire flights
Dulles Intl to Duluth flights
Baltimore to Duluth flights
Baltimore to Wausau flights
Dulles Intl to La Crosse flights
Reagan-National to Wausau flights
Dulles Intl to Wausau flights
Reagan-National to La Crosse flights
Baltimore to La Crosse flights
Reagan-National to Duluth flights
Dulles Intl to Dubuque flights
Dulles Intl to Rhinelander flights
Baltimore to Escanaba flights
Reagan-National to Escanaba flights
Baltimore to Rhinelander flights
Dulles Intl to Escanaba flights
Reagan-National to Dubuque flights
Baltimore to Ironwood flights
Reagan-National to Rhinelander flights
Baltimore to Dubuque flights

Top 3 airlines flying from Dulles Intl to Oshkosh

Discover the top 3 airlines that operate flights from Dulles Intl 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 December 23, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$189Average$386FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$258Average$418FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$288Average$346FlexibilityNo cancel feeOn-time71%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.