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Oshkosh

$113+ 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 9/25. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — MKE
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheap 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 September 11, 2025.

Round-trip from

$249
(American Airlines)

One-way from

$113
(Trip.com)

Popular in

March

Cheapest in

September

Average price

$239
From Washington, D.C. Dulles Intl to Oshkosh
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One-way flight from Washington, D.C. Dulles Intl to Oshkosh
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Highest demand for flights based on searches. 6% potential increase in price ($30 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($12 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find 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 September 11, 2025.

This American Airlines deal was found by Cheapflights users on 9/11. 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 10/148:09 amIAD - ATW
1 stop7h 43mAmerican Airlines
Sat 10/184:06 pmATW - IAD
1 stop6h 47mAmerican Airlines
Deal found 9/11$249
This United Airlines deal was found by Cheapflights users on 9/10. 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 9/256:30 amIAD - ATW
1 stop6h 31mUnited Airlines
Mon 9/296:30 amATW - IAD
1 stop4h 25mUnited Airlines
Deal found 9/10$259
This United Airlines deal was found by Cheapflights users on 9/10. 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 10/115:15 pmIAD - ATW
1 stop5h 18mUnited Airlines
Sat 10/183:46 pmATW - IAD
1 stop4h 09mUnited Airlines
Deal found 9/10$271
This Delta deal was found by Cheapflights users on 9/11. 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 10/185:52 pmIAD - ATW
1 stop4h 50mDelta
Wed 10/225:35 pmATW - IAD
1 stop4h 25mDelta
Deal found 9/11$297
This United Airlines deal was found by Cheapflights users on 9/10. 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 10/115:15 pmIAD - ATW
1 stop5h 18mUnited Airlines
Wed 10/156:45 pmATW - IAD
1 stop4h 36mUnited Airlines
Deal found 9/10$310
This United Airlines deal was found by Cheapflights users on 9/10. 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 10/25:15 pmIAD - ATW
1 stop5h 18mUnited Airlines
Sat 10/46:30 amATW - IAD
1 stop4h 25mUnited Airlines
Deal found 9/10$311
This United Airlines deal was found by Cheapflights users on 9/10. 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.
Wed 9/248:20 amIAD - ATW
1 stop6h 46mUnited Airlines
Sat 9/276:30 amATW - IAD
1 stop4h 18mUnited Airlines
Deal found 9/10$315
This American Airlines deal was found by Cheapflights users on 9/9. 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.
Wed 10/88:09 amIAD - ATW
1 stop7h 43mAmerican Airlines
Sat 10/114:06 pmATW - IAD
1 stop6h 47mAmerican Airlines
Deal found 9/9$318
This United Airlines deal was found by Cheapflights users on 9/11. 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 11/228:30 amIAD - ATW
1 stop6h 27mUnited Airlines
Wed 11/265:21 pmATW - IAD
1 stop5h 38mUnited Airlines
Deal found 9/11$319
This United Airlines deal was found by Cheapflights users on 9/11. 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.
Fri 9/261:20 pmIAD - ATW
1 stop7h 08mUnited Airlines
Tue 9/306:45 pmATW - IAD
1 stop4h 36mUnited Airlines
Deal found 9/11$324
This Delta deal was found by Cheapflights users on 9/11. 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.
Sun 11/236:03 amIAD - ATW
1 stop6h 30mDelta
Thu 11/2712:18 pmATW - IAD
1 stop6h 08mDelta
Deal found 9/11$327

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 September 11, 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

Sat 11/22

8:30 am-1:57 pm

1 stop6h 27m

Appleton Intl

Fri 11/28

5:21 pm-11:59 pm

1 stop5h 38m

$249

Washington, D.C.Appleton

IAD - ATW

IADATW

Washington, D.C. Dulles Intl

Sat 12/6

1:10 pm-7:19 pm

1 stop7h 09m

Appleton Intl

Mon 12/8

5:20 pm-11:55 pm

1 stop5h 35m

$249

Washington, D.C.Appleton

IAD - ATW

IADATW

Washington, D.C. Dulles Intl

Thu 9/25

6:30 am-12:01 pm

1 stop6h 31m

Appleton Intl

Mon 9/29

6:30 am-11:55 am

1 stop4h 25m

$259

Washington, D.C.Appleton

IAD - ATW

IADATW

Washington, D.C. Dulles Intl

Sat 10/11

5:15 pm-9:33 pm

1 stop5h 18m

Appleton Intl

Sat 10/18

3:46 pm-8:55 pm

1 stop4h 09m

$271

Washington, D.C.Appleton

IAD - ATW

IADATW

Washington, D.C. Dulles Intl

Sat 2/21

6:15 am-11:21 am

1 stop6h 06m

Appleton Intl

Wed 2/25

4:05 pm-11:35 pm

1 stop6h 30m

$297

Washington, D.C.Appleton

IAD - ATW

IADATW

Washington, D.C. Dulles Intl

Wed 10/8

6:18 am-11:25 am

1 stop6h 07m

Appleton Intl

Sat 10/11

4:57 pm-11:00 pm

1 stop5h 03m

$297

Washington, D.C.Appleton

IAD - ATW

IADATW

Washington, D.C. Dulles Intl

Wed 3/4

6:10 am-10:35 am

1 stop5h 25m

Appleton Intl

Tue 3/10

5:20 pm-11:02 pm

1 stop4h 42m

$307

Washington, D.C.Appleton

IAD - ATW

IADATW

Washington, D.C. Dulles Intl

Sat 10/11

5:15 pm-9:33 pm

1 stop5h 18m

Appleton Intl

Wed 10/15

6:45 pm-12:21 am

1 stop4h 36m

$310

Washington, D.C.Appleton

IAD - ATW

IADATW

Washington, D.C. Dulles Intl

Thu 10/2

5:15 pm-9:33 pm

1 stop5h 18m

Appleton Intl

Sat 10/4

6:30 am-11:55 am

1 stop4h 25m

$311

Washington, D.C.Appleton

IAD - ATW

IADATW

Washington, D.C. Dulles Intl

Sat 10/18

5:52 pm-9:42 pm

1 stop4h 50m

Appleton Intl

Wed 10/22

5:35 pm-11:00 pm

1 stop4h 25m

$315

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/9

Showing 1-10 of 18 results
1
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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, February is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Oshkosh (average of $280). Flying from Washington, D.C. Dulles Intl Airport to Oshkosh in June is currently the most expensive (average of $376). 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 September 11, 2025.

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.

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 Saturday at noon when fares are most often at their lowest. Friday 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 September 11, 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
8.0
Very good
7,960 reviews

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Food

7.3

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,960 reviews
Delta
8.0
Very good
7,960 reviews

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Food

7.3

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,937 reviews
Delta
8.0
Very good
7,960 reviews

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Food

7.3

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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 and Delta fly from Washington, D.C. Dulles Intl Airport to Oshkosh in about 6h 06m. The time it takes to get you to your destination can typically vary by up to 21m. 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, February is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Oshkosh (average of $280). Flying from Washington, D.C. Dulles Intl Airport to Oshkosh in June is currently the most expensive (average of $376). 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 September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$189Average$426FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$216Average$441FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$346Average$448FlexibilityNo cancel feeOn-time71%

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