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Oshkosh

$159+ 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 4/7. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — MKE
Mar 5 — Mar 121
Thu 3/5
Thu 3/12
1 adult, Economy
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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 February 3, 2026.

This Delta deal was found by Cheapflights users on 2/2. 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 4/215:07 pm
IAD
-
ATW
1 stop4h 30m
Delta
Fri 5/85:25 pm
ATW
-
IAD
1 stop4h 31m
Delta
Deal found 2/2$269
This Delta deal was found by Cheapflights users on 2/2. 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 4/215:07 pm
IAD
-
ATW
1 stop4h 30m
Delta
Thu 5/75:25 pm
ATW
-
IAD
1 stop4h 31m
Delta
Deal found 2/2$294
This Delta deal was found by Cheapflights users on 2/2. 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.
Thu 2/127:00 am
IAD
-
ATW
1 stop5h 27m
Delta
Mon 2/166:25 pm
ATW
-
IAD
1 stop3h 44m
Delta
Deal found 2/2$309
This Delta deal was found by Cheapflights users on 1/31. 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.
Thu 3/197:00 am
IAD
-
ATW
1 stop5h 25m
Delta
Sun 3/224:24 pm
ATW
-
IAD
1 stop6h 17m
Delta
Deal found 1/31$314
This United Airlines deal was found by Cheapflights users on 2/1. 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 2/268:15 am
IAD
-
ATW
1 stop6h 43m
United Airlines
Sun 3/12:39 pm
ATW
-
IAD
1 stop5h 39m
United Airlines
Deal found 2/1$325
This Delta deal was found by Cheapflights users on 2/1. 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.
Fri 2/1312:38 pm
IAD
-
ATW
1 stop6h 07m
Delta
Mon 2/166:25 pm
ATW
-
IAD
1 stop3h 44m
Delta
Deal found 2/1$329
This United Airlines deal was found by Cheapflights users on 2/3. 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.
Sat 2/145:17 pm
IAD
-
ATW
1 stop5h 15m
United Airlines
Mon 2/162:39 pm
ATW
-
IAD
1 stop5h 39m
United Airlines
Deal found 2/3$339
This Delta deal was found by Cheapflights users on 2/1. 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.
Sat 5/236:00 am
IAD
-
ATW
1 stop6h 51m
Delta
Sat 5/234:13 pm
ATW
-
IAD
1 stop18h 05m
Delta
Deal found 2/1$343
This Delta deal was found by Cheapflights users on 2/2. 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.
Thu 2/53:42 pm
IAD
-
ATW
1 stop7h 04m
Delta
Mon 2/96:23 pm
ATW
-
IAD
1 stop3h 43m
Delta
Deal found 2/2$354
This American Airlines deal was found by Cheapflights users on 2/1. 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.
Thu 2/55:46 pm
IAD
-
ATW
1 stop6h 35m
American Airlines
Mon 2/912:39 pm
ATW
-
IAD
2 stops9h 33m
American Airlines
Deal found 2/1$359

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 February 3, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$269
(Delta)

One-way from

$159
(Delta)

Popular in

April

Cheapest in

October

Average price

$333
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. 19% potential increase in price ($109 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 February 2026
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 February 3, 2026.
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

Mon 5/18

6:00 am-11:51 am

1 stop6h 51m

Appleton Intl

Wed 5/27

5:40 am-2:04 pm

1 stop7h 24m

$269

Washington, D.C.Appleton

IAD - ATW

IADATW

Washington, D.C. Dulles Intl

Sat 6/6

1:25 pm-4:54 pm

1 stop4h 29m

Appleton Intl

Sat 6/13

10:34 am-6:56 pm

1 stop7h 22m

$269

Washington, D.C.Appleton

IAD - ATW

IADATW

Washington, D.C. Dulles Intl

Tue 5/19

6:00 am-11:51 am

1 stop6h 51m

Appleton Intl

Tue 5/26

5:25 pm-10:56 pm

1 stop4h 31m

$269

Washington, D.C.Appleton

IAD - ATW

IADATW

Washington, D.C. Dulles Intl

Mon 4/27

6:00 am-11:24 am

1 stop6h 24m

Appleton Intl

Fri 5/8

4:13 pm-11:41 pm

1 stop6h 28m

$269

Washington, D.C.Appleton

IAD - ATW

IADATW

Washington, D.C. Dulles Intl

Sun 5/17

6:00 am-11:51 am

1 stop6h 51m

Appleton Intl

Mon 5/25

4:13 pm-11:41 pm

1 stop6h 28m

$269

Washington, D.C.Appleton

IAD - ATW

IADATW

Washington, D.C. Dulles Intl

Sat 4/25

6:00 am-10:30 am

1 stop5h 30m

Appleton Intl

Wed 5/6

6:18 pm-11:03 pm

1 stop3h 45m

$269

Washington, D.C.Appleton

IAD - ATW

IADATW

Washington, D.C. Dulles Intl

Sun 4/26

6:00 am-10:30 am

1 stop5h 30m

Appleton Intl

Sun 5/10

5:25 pm-10:56 pm

1 stop4h 31m

$269

Washington, D.C.Appleton

IAD - ATW

IADATW

Washington, D.C. Dulles Intl

Fri 4/24

6:00 am-10:30 am

1 stop5h 30m

Appleton Intl

Tue 5/12

4:13 pm-11:41 pm

1 stop6h 28m

$269

Washington, D.C.Appleton

IAD - ATW

IADATW

Washington, D.C. Dulles Intl

Mon 5/18

6:00 am-11:51 am

1 stop6h 51m

Appleton Intl

Mon 5/25

4:13 pm-11:41 pm

1 stop6h 28m

$269

Washington, D.C.Appleton

IAD - ATW

IADATW

Washington, D.C. Dulles Intl

Sun 4/26

6:00 am-11:24 am

1 stop6h 24m

Appleton Intl

Wed 5/6

4:20 pm-11:32 pm

1 stop6h 12m

$269

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/3

Showing 1-10 of 19 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 $288). 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.

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 February 3, 2026.
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
8,138 reviews

Crew

8.5

Entertainment

7.8

Comfort

7.9

Food

7.2

Boarding

8.1

Overall

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
8,138 reviews
Delta
7.9
Good
8,138 reviews

Crew

8.5

Entertainment

7.8

Comfort

7.9

Food

7.2

Boarding

8.1

Overall

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
9,236 reviews
Delta
7.9
Good
8,138 reviews

Crew

8.5

Entertainment

7.8

Comfort

7.9

Food

7.2

Boarding

8.1

Overall

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 Delta and United Airlines fly from Washington, D.C. Dulles Intl Airport to Oshkosh in about 4h 29m. The time it takes to get you to your destination can typically vary by up to 2h 22m. 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 $288). 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

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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 February 3, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$155Average$400FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$258Average$403FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$288Average$346FlexibilityNo cancel feeOn-time71%

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