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Oshkosh

$59+ Cheap flights from Denver (DEN) 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 9/11. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — MKE
Jul 8 — Jul 151
Tue 7/8
Tue 7/15
1 adult, Economy
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Cheapflights Tip: The best prices from Denver Intl to Oshkosh are usually found in September or August, booked 77 days in advance, depart on a Thursday or Tuesday and return on a Sunday

Cheap flight deals from Denver to Oshkosh

Keep the following information in mind while searching for Denver to Oshkosh flight deals. Data was last updated July 3, 2025.

Round-trip from

$110
(Mytrip)

One-way from

$59
(Booking.com)

Popular in

December

Cheapest in

September

Average price

$245
From Denver Intl to Oshkosh
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One-way flight from Denver Intl to Oshkosh
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Highest demand for flights based on searches. 20% potential increase in price ($79 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($10 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Find flight deals from Denver to Oshkosh

Cheapest flights from Denver to Oshkosh
Explore the most affordable flight options available from Denver to Oshkosh. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 3, 2025.

This Mytrip deal was found by Cheapflights users on 7/2. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/185:44 pmDEN - ATW
Nonstop2h 17mAllegiant Air
Sun 9/213:20 pmATW - DEN
Nonstop2h 34mAllegiant Air
Deal found 7/2$110
This Delta deal was found by Cheapflights users on 7/2. 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.
Fri 9/56:15 amDEN - ATW
1 stop4h 16mDelta
Tue 9/94:12 pmATW - DEN
1 stop4h 43mDelta
Deal found 7/2$229
This American Airlines deal was found by Cheapflights users on 7/1. 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.
Fri 9/511:06 amDEN - ATW
2 stops10h 19mAmerican Airlines
Tue 9/96:18 pmATW - DEN
1 stop4h 58mAmerican Airlines
Deal found 7/1$234
This Trip.com deal was found by Cheapflights users on 7/3. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/2912:23 pmDEN - ATW
Nonstop2h 19mMultiple Airlines
Fri 8/17:00 amATW - DEN
2 stops27h 49mMultiple Airlines
Deal found 7/3$254
This United Airlines deal was found by Cheapflights users on 7/1. 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.
Sat 7/125:20 pmDEN - ATW
Nonstop2h 34mUnited Airlines
Sun 7/204:15 pmATW - DEN
Nonstop2h 52mUnited Airlines
Deal found 7/1$259

Cheapflights Fare Finder

Customize your flight search to find flights from Denver 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 July 3, 2025.
Use the filters below to find and compare flights from Denver to Oshkosh that are best for you.

Fly from

Denver

Fly to

Oshkosh

Route

Depart

Return

Price

DenverAppleton

DEN - ATW

DENATW

Denver Intl

Thu 9/18

5:44 pm-9:01 pm

Nonstop2h 17m

Appleton Intl

Sun 9/21

3:20 pm-4:54 pm

Nonstop2h 34m

$110

DenverAppleton

DEN - ATW

DENATW

Denver Intl

Fri 9/5

6:15 am-11:31 am

1 stop4h 16m

Appleton Intl

Tue 9/9

4:12 pm-7:55 pm

1 stop4h 43m

$229

DenverAppleton

DEN - ATW

DENATW

Denver Intl

Fri 9/5

11:06 am-10:25 pm

2 stops10h 19m

Appleton Intl

Tue 9/9

3:45 pm-10:13 pm

1 stop7h 28m

$234

DenverAppleton

DEN - ATW

DENATW

Denver Intl

Tue 7/29

12:23 pm-3:42 pm

Nonstop2h 19m

Appleton Intl

Fri 8/1

7:00 am-9:49 am

2 stops27h 49m

$254

DenverAppleton

DEN - ATW

DENATW

Denver Intl

Sat 7/26

9:40 am-1:13 pm

Nonstop2h 33m

Appleton Intl

Tue 7/29

4:15 pm-6:07 pm

Nonstop2h 52m

$279

DenverAppleton

DEN - ATW

DENATW

Denver Intl

Thu 9/11

5:44 pm-9:01 pm

Nonstop2h 17m

$59

DenverAppleton

DEN - ATW

DENATW

Denver Intl

Tue 8/5

5:20 pm-8:54 pm

Nonstop2h 34m

$224

DenverAppleton

DEN - ATW

DENATW

Denver Intl

Tue 8/5

10:29 am-5:27 pm

1 stop5h 58m

$234

DenverAppleton

DEN - ATW

DENATW

Denver Intl

Tue 8/5

1:49 pm-11:28 pm

2 stops8h 39m

$239

DenverAppleton

DEN - ATW

DENATW

Denver Intl

Mon 7/21

4:15 pm-10:45 pm

2 stops29h 30m

$245

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/2

Best time to book a flight from Denver to Oshkosh

Have a flexible travel schedule? Discover the best time to fly to Oshkosh from Denver 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 Denver to Oshkosh

How far ahead should I book a flight from Denver to Oshkosh?

Use this chart to determine the optimal time to book a round-trip flight from Denver to Oshkosh. Price data was last updated on June 27, 2025.

The price you pay for your flight from Denver to Oshkosh may vary depending on when you book. For the best chance of a lower fare, look to book 77 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from Denver to Oshkosh?

Currently, February is the cheapest month in which you can book a flight from Denver to Oshkosh (average of $280). Flying from Denver 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 DEN to OS9?

Find hourly flight availability from Denver 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 July 3, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Denver to Oshkosh as you normally would.

What is the cheapest day to fly from Denver to Oshkosh?

Use this chart to determine the cheapest time to fly round-trip from Denver to Oshkosh. Price data was last updated on June 29, 2025.

Travelers seeking maximum savings on their Denver to Oshkosh flight should consider departing on Wednesday evenings when fares are most often at their lowest. Monday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Denver to Oshkosh

Explore weekly flight availability from Denver to Oshkosh. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated July 3, 2025.

The most flights from DEN to OS9 are scheduled on a Monday (10 on average). You will have fewer flight options on Friday, which is when the least amount of flights are scheduled (1 on average).

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 July 3, 2025.
Peruse reviews from past customers who have flown with Delta, United Airlines, and American Airlines from Denver 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
7,970 reviews

Entertainment

7.9

Food

7.3

Crew

8.5

Overall

8.0

Boarding

8.2

Comfort

7.9

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
7,970 reviews
Delta
8.0
Very good
7,970 reviews

Entertainment

7.9

Food

7.3

Crew

8.5

Overall

8.0

Boarding

8.2

Comfort

7.9

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
8,845 reviews
Delta
8.0
Very good
7,970 reviews

Entertainment

7.9

Food

7.3

Crew

8.5

Overall

8.0

Boarding

8.2

Comfort

7.9

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!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,970 reviews

Entertainment

7.9

Food

7.3

Crew

8.5

Overall

8.0

Boarding

8.2

Comfort

7.9

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!
Allegiant Air
7.2
Good
709 reviews
Delta
8.0
Very good
7,970 reviews

Entertainment

7.9

Food

7.3

Crew

8.5

Overall

8.0

Boarding

8.2

Comfort

7.9

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 Denver to Oshkosh. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Denver to Oshkosh?

    If you book a flight to Oshkosh from Denver, you will be flying from Denver Intl, which is the city’s only airport. Denver Intl (DEN) is located 18.5 mi from the center of Denver. There is 1 flight from Denver Intl to Oshkosh per day from 6 different airlines.

  • How popular is this Denver to Oshkosh flight route?

    This flight path from Denver Intl to Oshkosh was viewed by 4 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • What are the cheapest airlines to fly from Denver to Oshkosh one-way?

    One-way options have recently been found by users for as low as $59 on Allegiant Air. Other airlines that offer cheap prices include United Airlines from $224 and Delta from $234 one-way.

  • What are the most reliable airlines from Denver to Oshkosh?

    Before booking your flight to Oshkosh from Denver, check out the most reliable airlines to get you to your destination on time: Frontier (79%), SkyWest Airlines (73%), United Airlines( 63%).

  • What are the cheapest flights from Denver to Oshkosh?

    The cheapest flight price from Denver to Oshkosh is $94. On average you can expect to pay $431. The most popular route, (Denver Intl - Appleton Intl), can usually be booked for $110.

  • Can I find deals for flights from Denver to Oshkosh that include hotel bookings?

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

  • How can I find direct flights from Denver to Oshkosh?

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

  • Can I find deals for business class flights from Denver to Oshkosh?

    Yes. Cheapflights offers flight deals from Denver 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 Denver to Oshkosh?

    Currently, February is the cheapest month in which you can book a flight from Denver to Oshkosh (average of $280). Flying from Denver 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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Alternative routes for Denver to Oshkosh

See prices for flight routes from nearby airports that may be better suited for you.
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Top 6 airlines flying from Denver to Oshkosh

Discover the top 6 airlines that operate flights from Denver 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 July 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$48Average$174FlexibilityNo cancel feeOn-time62%
Allegiant AirCheapest$77Average$173FlexibilityNo cancel feeOn-time88%
United AirlinesCheapest$161Average$392FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$190Average$349FlexibilityNo cancel feeOn-time71%
DeltaCheapest$218Average$373FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$224Average$362FlexibilityNo cancel feeOn-time63%

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