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$118+ Cheap flights from Oshkosh, WI to Denver (DEN)

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 7/15. Fares are subject to change and may not be available on all flights or dates of travel.
MKE — DEN
May 5 — May 121
Mon 5/5
Mon 5/12
1 adult, Economy
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Cheapflights Tip: The best prices from Oshkosh to Denver Intl are usually found in September or May, booked 88 days in advance, depart on a Sunday or Thursday and return on a Thursday

Cheap flight deals from Oshkosh to Denver

Keep the following information in mind while searching for Oshkosh to Denver flight deals. Data was last updated April 30, 2025.

Most accurate provider

Flightnetwork
3 stars

Most trusted provider

Flightnetwork
3 stars

Round-trip from

$138
(Kiwi.com)

One-way from

$118
(Booking.com)

Popular in

March

Cheapest in

September

Average price

$278
Provider with most accurate pricing for Appleton Intl-Denver Intl flight deals.
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Provider most trusted by Cheapflights users for Appleton Intl-Denver Intl flights.
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From Oshkosh to Denver Intl
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One-way flight from Oshkosh to Denver Intl
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Highest demand for flights based on searches. 15% potential increase in price ($56 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($14 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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Find flight deals from Oshkosh to Denver

Cheapest flights from Oshkosh to Denver
Explore the most affordable flight options available from Oshkosh to Denver. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 30, 2025.

This Kiwi.com deal was found by Cheapflights users on 4/28. 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.
Sun 5/251:05 pmATW - DEN
Nonstop2h 34mAllegiant Air
Sun 5/258:24 pmDEN - ATW
Nonstop2h 14mAllegiant Air
Deal found 4/28$138
This Delta deal was found by Cheapflights users on 4/29. 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 5/1711:11 amATW - DEN
1 stop7h 19mDelta
Sat 5/246:00 amDEN - ATW
1 stop4h 11mDelta
Deal found 4/29$219
This American Airlines deal was found by Cheapflights users on 4/29. 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 5/2911:26 amATW - DEN
1 stop6h 41mAmerican Airlines
Mon 6/211:59 pmDEN - ATW
2 stops9h 57mAmerican Airlines
Deal found 4/29$234
This United Airlines deal was found by Cheapflights users on 4/28. 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 7/18:40 amATW - DEN
Nonstop2h 52mUnited Airlines
Fri 7/46:00 amDEN - ATW
1 stop7h 08mUnited Airlines
Deal found 4/28$279
This Mytrip deal was found by Cheapflights users on 4/28. 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.
Sun 5/251:05 pmATW - DEN
Nonstop2h 34mMultiple Airlines
Thu 5/296:30 pmDEN - ATW
3 stops28h 08mMultiple Airlines
Deal found 4/28$333

Cheapflights Fare Finder

Customize your flight search to find flights from Oshkosh to Denver 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 April 30, 2025.
Use the filters below to find and compare flights from Oshkosh to Denver that are best for you.

Fly from

Oshkosh

Fly to

Denver

Route

Depart

Return

Price

AppletonDenver

ATW - DEN

ATWDEN

Appleton Intl

Sun 5/25

1:05 pm-2:39 pm

Nonstop2h 34m

Denver Intl

Sun 5/25

8:24 pm-11:38 pm

Nonstop2h 14m

$138

AppletonDenver

ATW - DEN

ATWDEN

Appleton Intl

Fri 5/30

2:43 pm-8:33 pm

1 stop6h 50m

Denver Intl

Sat 6/7

5:32 pm-9:05 pm

Nonstop2h 33m

$219

AppletonDenver

ATW - DEN

ATWDEN

Appleton Intl

Fri 5/30

7:10 am-1:55 pm

1 stop7h 45m

Denver Intl

Tue 6/10

6:05 am-11:19 am

1 stop4h 14m

$229

AppletonDenver

ATW - DEN

ATWDEN

Appleton Intl

Thu 5/29

11:26 am-5:07 pm

1 stop6h 41m

Denver Intl

Mon 6/2

11:59 pm-10:56 am

2 stops9h 57m

$234

AppletonDenver

ATW - DEN

ATWDEN

Appleton Intl

Sun 5/25

1:05 pm-2:39 pm

Nonstop2h 34m

Denver Intl

Thu 5/29

6:30 pm-11:38 pm

3 stops28h 08m

$333

AppletonDenver

ATW - DEN

ATWDEN

Appleton Intl

Tue 7/15

10:00 am-11:33 am

Nonstop2h 33m

$118

AppletonDenver

ATW - DEN

ATWDEN

Appleton Intl

Sat 5/17

11:11 am-5:30 pm

1 stop7h 19m

$120

AppletonDenver

ATW - DEN

ATWDEN

Appleton Intl

Tue 7/15

6:10 pm-10:47 pm

1 stop5h 37m

$143

AppletonDenver

ATW - DEN

ATWDEN

Appleton Intl

Fri 6/20

8:40 am-10:31 am

Nonstop2h 51m

$224

AppletonDenver

ATW - DEN

ATWDEN

Appleton Intl

Wed 5/14

7:00 am-3:05 pm

3 stops33h 05m

$303

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/28

Best time to book a flight from Oshkosh to Denver

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

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

Use this chart to determine the optimal time to book a round-trip flight from Oshkosh to Denver. Price data was last updated on April 25, 2025.

The best time to book flights from Oshkosh to Denver is 88 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, October is the cheapest month in which you can book a flight from Oshkosh to Denver (average of $197). Flying from Oshkosh to Denver in March is currently the most expensive (average of $278). 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 OS9 to DEN?

Find hourly flight availability from Oshkosh to Denver. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 30, 2025.

When flying from Oshkosh to Denver, 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 Oshkosh to Denver?

Use this chart to determine the cheapest time to fly round-trip from Oshkosh to Denver. Price data was last updated on March 30, 2025.

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

Rainfall in Denver by month

Plan your trip to Denver by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Denver ranges from 0.5 - 2.3 inches per month. May is typically the wettest month, when rainfall can reach 2.3 in. January is typically the driest time to visit Denver when rainfall is around 0.5 in.

Temperature in Denver by month

Plan your trip to Denver by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Denver, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 30.2 F).

Reviews of airlines servicing Denver

Get insights into the airlines that provide service to Denver. 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 Denver. Reviews last updated April 30, 2025.
Read through reviews of airlines operating flights from Oshkosh to Denver, such as Delta, United Airlines and Allegiant Air. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,929 reviews

Boarding

8.2

Crew

8.5

Entertainment

7.9

Overall

8.0

Food

7.3

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Delta
8.0
Very good
7,929 reviews
Delta
8.0
Very good
7,929 reviews

Boarding

8.2

Crew

8.5

Entertainment

7.9

Overall

8.0

Food

7.3

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
United Airlines
7.4
Good
8,696 reviews
Delta
8.0
Very good
7,929 reviews

Boarding

8.2

Crew

8.5

Entertainment

7.9

Overall

8.0

Food

7.3

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Allegiant Air
7.3
Good
734 reviews
Delta
8.0
Very good
7,929 reviews

Boarding

8.2

Crew

8.5

Entertainment

7.9

Overall

8.0

Food

7.3

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,929 reviews

Boarding

8.2

Crew

8.5

Entertainment

7.9

Overall

8.0

Food

7.3

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

Find useful and relevant information for your journey from Oshkosh to Denver. 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 into for flights to Denver from Oshkosh?

    For a flight from Oshkosh to Denver, you will be flying into Denver Intl. Denver Intl (DEN) is just 18.5 mi from the center of the city. Denver Intl is the only Denver airport and it handles 0 inbound flights from Oshkosh per day. 6 airlines have flights to Denver Intl from Oshkosh on a regular basis.

  • How popular is this Oshkosh to Denver flight route?

    Within the past month, 99 users have taken a look at flights from Oshkosh to Denver Intl.

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

    For one-way options, check prices for Allegiant Air. According to our data, you can fly for as low as $118. Users have also found prices from $120 and $143 on Delta and American Airlines, respectively.

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

    The top 3 most reliable airlines when flying from Oshkosh to Denver are Southwest (85%), United Airlines (82%) and Frontier (80%).

  • What are the cheapest flights from Oshkosh to Denver?

    The cheapest flight price from Oshkosh to Denver is $87. On average you can expect to pay $538. The most popular route, (Appleton Intl - Denver Intl), can usually be booked for $118.

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

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

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

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

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

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

    Currently, October is the cheapest month in which you can book a flight from Oshkosh to Denver (average of $197). Flying from Oshkosh to Denver in March is currently the most expensive (average of $278). 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

Traveling to a place near Oshkosh?

Book flights to Oshkosh if you plan to visit one of these locations
Westminster
Black Hawk
Winter Park
Lakewood
Cripple Creek
Silverthorne
Brighton
Golden
Thornton
Greeley
Frisco
Grand Lake
Broomfield
Central City
Glendale
Copper Mountain
Wheat Ridge
Longmont
Idaho Springs
Limon

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Top 6 airlines flying from Oshkosh to Denver

Discover the top 6 airlines that operate flights from Oshkosh to Denver. 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 April 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$41Average$142FlexibilityNo cancel feeOn-time62%
Allegiant AirCheapest$88Average$172FlexibilityNo cancel feeOn-time88%
American AirlinesCheapest$148Average$326FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$156Average$376FlexibilityNo cancel feeOn-time69%
DeltaCheapest$207Average$371FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$230Average$377FlexibilityNo cancel feeOn-time63%

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