HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Oshkosh

$106+ 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 10/2. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — MKE
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Denver 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.

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 September 11, 2025.

Round-trip from

$146
(Cheapflightsfares)

One-way from

$106
(Kiwi.com)

Popular in

December

Cheapest in

September

Average price

$225
From Denver Intl to Oshkosh
Search Deals
One-way flight from Denver Intl to Oshkosh
Search Deals
Highest demand for flights based on searches. 20% potential increase in price ($80 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($10 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2025
Search Deals

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 September 11, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 9/8. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/235:52 pmDEN - ATW
Nonstop2h 15mAllegiant Air
Sun 10/263:25 pmATW - DEN
Nonstop2h 37mAllegiant Air
Deal found 9/8$146
This Cheapflightsfares 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/167:22 pmDEN - ATW
Nonstop2h 15mAllegiant Air
Sun 10/194:55 pmATW - DEN
Nonstop2h 37mAllegiant Air
Deal found 9/11$206
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/28:59 pmDEN - ATW
1 stop25h 13mMultiple Airlines
Sun 10/53:25 pmATW - DEN
Nonstop2h 37mMultiple Airlines
Deal found 9/9$210
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/275:20 pmDEN - ATW
Nonstop2h 36mUnited Airlines
Tue 9/308:43 amATW - DEN
Nonstop2h 52mUnited Airlines
Deal found 9/9$219
This Kiwi.com deal was found by Cheapflights users on 9/8. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/235:52 pmDEN - ATW
Nonstop2h 15mMultiple Airlines
Sun 10/262:42 pmATW - DEN
1 stop26h 44mMultiple Airlines
Deal found 9/8$222
This Cheapflightsfares 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/25:52 pmDEN - ATW
Nonstop2h 15mAllegiant Air
Sun 10/53:25 pmATW - DEN
Nonstop2h 37mAllegiant Air
Deal found 9/9$224
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/44:16 pmDEN - ATW
1 stop3h 59mDelta
Wed 11/125:23 amATW - DEN
1 stop9h 41mDelta
Deal found 9/10$229
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/255:44 pmDEN - ATW
Nonstop2h 17mAllegiant Air
Sun 9/283:20 pmATW - DEN
Nonstop2h 34mAllegiant Air
Deal found 9/9$243
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.
Sat 9/278:10 amDEN - ATW
2 stops8h 38mAmerican Airlines
Sat 10/46:33 amATW - DEN
1 stop6h 18mAmerican Airlines
Deal found 9/9$244

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 September 11, 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 10/16

7:22 pm-10:37 pm

Nonstop2h 15m

Appleton Intl

Sun 10/19

4:55 pm-6:32 pm

Nonstop2h 37m

$206

DenverAppleton

DEN - ATW

DENATW

Denver Intl

Sat 9/27

5:20 pm-8:56 pm

Nonstop2h 36m

Appleton Intl

Tue 9/30

8:43 am-10:35 am

Nonstop2h 52m

$219

DenverAppleton

DEN - ATW

DENATW

Denver Intl

Sat 10/18

5:20 pm-8:56 pm

Nonstop2h 36m

Appleton Intl

Tue 10/21

6:45 pm-11:30 pm

1 stop5h 45m

$219

DenverAppleton

DEN - ATW

DENATW

Denver Intl

Wed 10/1

6:05 am-11:28 am

1 stop4h 23m

Appleton Intl

Mon 10/6

5:35 pm-10:06 pm

1 stop5h 31m

$229

DenverAppleton

DEN - ATW

DENATW

Denver Intl

Tue 11/4

10:24 am-4:47 pm

1 stop5h 23m

Appleton Intl

Sun 11/9

6:24 am-10:03 am

1 stop4h 39m

$229

DenverAppleton

DEN - ATW

DENATW

Denver Intl

Sat 9/27

5:20 pm-8:56 pm

Nonstop2h 36m

Appleton Intl

Wed 10/1

2:45 pm-10:00 pm

1 stop8h 15m

$229

DenverAppleton

DEN - ATW

DENATW

Denver Intl

Sat 9/27

6:05 am-11:28 am

1 stop4h 23m

Appleton Intl

Sat 10/4

4:16 pm-7:54 pm

1 stop4h 38m

$239

DenverAppleton

DEN - ATW

DENATW

Denver Intl

Fri 11/14

1:10 pm-10:08 pm

1 stop7h 58m

Appleton Intl

Sun 11/16

6:24 am-10:03 am

1 stop4h 39m

$269

DenverAppleton

DEN - ATW

DENATW

Denver Intl

Sat 3/7

6:10 am-11:21 am

1 stop4h 11m

Appleton Intl

Wed 3/11

5:20 pm-9:47 pm

1 stop5h 27m

$269

DenverAppleton

DEN - ATW

DENATW

Denver Intl

Thu 10/2

8:59 pm-11:12 pm

1 stop25h 13m

$106

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/11

Showing 1-10 of 19 results
1
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 August 29, 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 September 11, 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 September 7, 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 September 11, 2025.

The most flights from DEN to OS9 are scheduled on a Monday (8 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (2 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 September 11, 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
7,960 reviews

Entertainment

7.9

Food

7.3

Boarding

8.2

Comfort

7.9

Overall

8.0

Crew

8.5

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

Entertainment

7.9

Food

7.3

Boarding

8.2

Comfort

7.9

Overall

8.0

Crew

8.5

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

Entertainment

7.9

Food

7.3

Boarding

8.2

Comfort

7.9

Overall

8.0

Crew

8.5

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
7,960 reviews

Entertainment

7.9

Food

7.3

Boarding

8.2

Comfort

7.9

Overall

8.0

Crew

8.5

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
702 reviews
Delta
8.0
Very good
7,960 reviews

Entertainment

7.9

Food

7.3

Boarding

8.2

Comfort

7.9

Overall

8.0

Crew

8.5

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 3 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • How long is the flight from Denver to Oshkosh?

    A quick flight from Denver to Oshkosh can take about 2h 15m. Allegiant Air provides one of the quickest options available for as low as $206. Airlines will cover a distance of 880 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • 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 (74%), SkyWest Airlines (70%), United Airlines( 68%).

  • What are the cheapest flights from Denver to Oshkosh?

    The cheapest flight price from Denver to Oshkosh is $51. On average you can expect to pay $209. The most popular route, (Denver Intl - Appleton Intl), can usually be booked for $167.

  • 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

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 Denver to Oshkosh

See prices for flight routes from nearby airports that may be better suited for you.
Denver to O'Hare Intl flights
Denver to Minneapolis flights
Denver to Madison flights
Denver to Milwaukee flights
Denver to Appleton flights
Colorado Springs to O'Hare Intl flights
Denver to Green Bay flights
Colorado Springs to Minneapolis flights
Aspen to O'Hare Intl flights
Denver to Duluth flights
Denver to Wausau flights
Durango to O'Hare Intl flights
Durango to Minneapolis flights
Grand Junction to O'Hare Intl flights
Hayden to O'Hare Intl flights
Vail to O'Hare Intl flights
Grand Junction to Minneapolis flights
Montrose to Milwaukee flights
Colorado Springs to Madison flights
Colorado Springs to Green Bay flights
Montrose to Minneapolis flights
Denver to Rhinelander flights
Montrose to O'Hare Intl flights
Durango to Milwaukee flights
Durango to Madison flights
Grand Junction to Milwaukee flights
Aspen to Minneapolis flights
Colorado Springs to Milwaukee flights
Denver to Eau Claire flights
Colorado Springs to Appleton flights
Grand Junction to Madison flights
Hayden to Minneapolis flights
Denver to Ironwood flights
Denver to La Crosse flights
Aspen to Milwaukee flights
Aspen to Green Bay flights
Durango to Green Bay flights
Gunnison to O'Hare Intl flights
Colorado Springs to Duluth flights
Montrose to Madison flights
Grand Junction to Green Bay flights
Gunnison to Minneapolis flights
Montrose to Green Bay flights
Vail to Milwaukee flights
Grand Junction to Appleton flights
Grand Junction to Eau Claire flights
Colorado Springs to Wausau flights
Aspen to Wausau flights
Aspen to Madison flights
Durango to Wausau flights

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 September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$60Average$184FlexibilityNo cancel feeOn-time62%
Allegiant AirCheapest$74Average$176FlexibilityNo cancel feeOn-time88%
American AirlinesCheapest$158Average$355FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$172Average$396FlexibilityNo cancel feeOn-time69%
DeltaCheapest$199Average$371FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$206Average$351FlexibilityNo cancel feeOn-time63%

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.