$63+ 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
Oct 2 — Oct 91
Round-trip
1 adult, Economy
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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 October or March, booked 73 days in advance, depart on a Monday or Friday and return on a Monday
Cheap flight deals from Denver to Oshkosh
Cheapest
Best
Last-minute
One-way
Cheapest flights from Denver to OshkoshExplore 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 2, 2026.
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 2, 2026.
This CheapOair deal was found by Cheapflights users on 9/1. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/267:50 pm -
Nonstop2h 17m
Mon 11/25:29 pm -
Nonstop2h 31m
Deal found 9/1![Allegiant Air logo]()
$140
This CheapOair deal was found by Cheapflights users on 8/29. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/143:48 pm -
Nonstop2h 17m
Fri 9/185:29 pm -
Nonstop2h 31m
Deal found 8/29![Allegiant Air logo]()
$159
This CheapOair deal was found by Cheapflights users on 9/1. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/257:50 pm -
Nonstop2h 17m
Mon 9/281:27 pm -
Nonstop2h 31m
Deal found 9/1![Allegiant Air logo]()
$166
This Cheapflightsfares deal was found by Cheapflights users on 8/31. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/57:50 pm -
Nonstop2h 17m
Fri 10/96:01 pm -
Nonstop2h 30m
Deal found 8/31![Allegiant Air logo]()
$189
This CheapOair deal was found by Cheapflights users on 9/1. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/237:50 pm -
Nonstop2h 17m
Mon 10/265:29 pm -
Nonstop2h 31m
Deal found 9/1![Allegiant Air logo]()
$192
This Kiwi.com deal was found by Cheapflights users on 9/1. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/237:50 pm -
Nonstop2h 17m
Mon 10/267:30 am -
1 stop8h 42m
Deal found 9/1![Multiple Airlines logo]()
$215
This Kiwi.com deal was found by Cheapflights users on 9/1. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2810:37 pm -
1 stop23h 03m
Fri 10/305:29 pm -
Nonstop2h 31m
Deal found 9/1![Multiple Airlines logo]()
$219
This Kiwi.com deal was found by Cheapflights users on 9/1. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/27:50 pm -
Nonstop2h 17m
Mon 11/97:46 pm -
1 stop22h 36m
Deal found 9/1![Multiple Airlines logo]()
$223
This Cheapflightsfares deal was found by Cheapflights users on 8/30. 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.
Mon 10/127:50 pm -
Nonstop2h 17m
Fri 10/235:29 pm -
Nonstop2h 31m
Deal found 8/30![Allegiant Air logo]()
$225
This Kiwi.com deal was found by Cheapflights users on 9/1. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/257:50 pm -
Nonstop2h 17m
Mon 9/286:30 am -
1 stop11h 46m
Deal found 9/1![Multiple Airlines logo]()
$236
Best flights from Denver to OshkoshDiscover carefully curated flight deals from Denver to Oshkosh that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 2, 2026.
Discover carefully curated flight deals from Denver to Oshkosh that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 2, 2026.
This United Airlines deal was found by Cheapflights users on 8/28. 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.
Fri 12/113:12 pm -
1 stop5h 10m
Tue 12/1510:00 am -
1 stop5h 55m
Deal found 8/28![United Airlines logo]()
$319
This Delta deal was found by Cheapflights users on 8/31. 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.
Mon 10/126:05 am -
1 stop4h 33m
Fri 10/235:35 pm -
1 stop7h 09m
Deal found 8/31![Delta logo]()
$319
This United Airlines deal was found by Cheapflights users on 8/29. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/105:46 pm -
Nonstop2h 22m
Sat 10/172:36 pm -
1 stop6h 09m
Deal found 8/29![United Airlines logo]()
$348
This United Airlines deal was found by Cheapflights users on 8/31. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/155:32 pm -
Nonstop2h 22m
Tue 9/225:00 pm -
1 stop6h 13m
Deal found 8/31![United Airlines logo]()
$350
This United Airlines deal was found by Cheapflights users on 9/1. 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 9/124:40 pm -
1 stop5h 18m
Tue 9/225:00 pm -
1 stop6h 13m
Deal found 9/1![United Airlines logo]()
$374
This United Airlines deal was found by Cheapflights users on 9/1. 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 10/225:46 pm -
Nonstop2h 22m
Mon 10/268:30 am -
Nonstop3h 03m
Deal found 9/1![United Airlines logo]()
$389
This United Airlines deal was found by Cheapflights users on 9/1. 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.
Fri 12/114:15 pm -
1 stop5h 57m
Mon 12/145:05 pm -
1 stop7h 09m
Deal found 9/1![United Airlines logo]()
$399
This United Airlines deal was found by Cheapflights users on 9/1. 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.
Fri 9/255:46 pm -
Nonstop2h 22m
Sun 9/278:50 am -
Nonstop2h 45m
Deal found 9/1![United Airlines logo]()
$403
This United Airlines deal was found by Cheapflights users on 8/31. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/125:46 pm -
Nonstop2h 22m
Fri 10/232:36 pm -
1 stop8h 08m
Deal found 8/31![United Airlines logo]()
$409
This United Airlines deal was found by Cheapflights users on 8/30. 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 9/175:32 pm -
Nonstop2h 22m
Tue 9/225:00 pm -
1 stop6h 13m
Deal found 8/30![United Airlines logo]()
$415
This United Airlines deal was found by Cheapflights users on 8/31. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/305:25 pm -
Nonstop2h 23m
Mon 11/24:55 pm -
1 stop7h 36m
Deal found 8/31![United Airlines logo]()
$434
Last-minute flights from Denver to OshkoshDiscover last-minute flight deals from Denver to Oshkosh. Data last updated September 2, 2026 and is based on user searches.
Discover last-minute flight deals from Denver to Oshkosh. Data last updated September 2, 2026 and is based on user searches.
This CheapOair deal was found by Cheapflights users on 8/29. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/143:48 pm -
Nonstop2h 17m
Fri 9/185:29 pm -
Nonstop2h 31m
Deal found 8/29![Allegiant Air logo]()
$159
This CheapOair deal was found by Cheapflights users on 9/1. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/257:50 pm -
Nonstop2h 17m
Mon 9/281:27 pm -
Nonstop2h 31m
Deal found 9/1![Allegiant Air logo]()
$166
This Kiwi.com deal was found by Cheapflights users on 9/1. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/257:50 pm -
Nonstop2h 17m
Mon 9/286:30 am -
1 stop11h 46m
Deal found 9/1![Multiple Airlines logo]()
$236
This Cheapflightsfares deal was found by Cheapflights users on 8/31. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/57:50 pm -
Nonstop2h 17m
Fri 10/96:01 pm -
Nonstop2h 30m
Deal found 8/31![Allegiant Air logo]()
$189
This Cheapflightsfares deal was found by Cheapflights users on 8/30. 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.
Mon 10/127:50 pm -
Nonstop2h 17m
Fri 10/235:29 pm -
Nonstop2h 31m
Deal found 8/30![Allegiant Air logo]()
$225
This Kiwi.com deal was found by Cheapflights users on 8/29. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/167:50 pm -
Nonstop2h 17m
Fri 10/235:29 pm -
Nonstop2h 31m
Deal found 8/29![Allegiant Air logo]()
$245
This CheapOair deal was found by Cheapflights users on 9/1. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/237:50 pm -
Nonstop2h 17m
Mon 10/265:29 pm -
Nonstop2h 31m
Deal found 9/1![Allegiant Air logo]()
$192
This Kiwi.com deal was found by Cheapflights users on 9/1. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/237:50 pm -
Nonstop2h 17m
Mon 10/267:30 am -
1 stop8h 42m
Deal found 9/1![Multiple Airlines logo]()
$215
This CheapOair deal was found by Cheapflights users on 9/1. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/267:50 pm -
Nonstop2h 17m
Mon 11/25:29 pm -
Nonstop2h 31m
Deal found 9/1![Allegiant Air logo]()
$140
This Kiwi.com deal was found by Cheapflights users on 9/1. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2810:37 pm -
1 stop23h 03m
Fri 10/305:29 pm -
Nonstop2h 31m
Deal found 9/1![Multiple Airlines logo]()
$219
One-way flights from Denver to OshkoshSearch for one-way flight options from Denver to Oshkosh. Find affordable one-way fares based on user searches. Data last updated September 2, 2026.
Search for one-way flight options from Denver to Oshkosh. Find affordable one-way fares based on user searches. Data last updated September 2, 2026.
This Super.com deal was found by Cheapflights users on 8/30. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/117:50 pm -
Nonstop2h 17m
Deal found 8/30![Allegiant Air logo]()
$63
This Kiwi.com deal was found by Cheapflights users on 8/29. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/307:50 pm -
Nonstop2h 17m
Deal found 8/29![Allegiant Air logo]()
$109
This Kiwi.com deal was found by Cheapflights users on 8/29. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/267:50 pm -
Nonstop2h 17m
Deal found 8/29![Allegiant Air logo]()
$118
This Cheapflightsfares deal was found by Cheapflights users on 8/28. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/77:50 pm -
Nonstop2h 17m
Deal found 8/28![Allegiant Air logo]()
$135
This Kiwi.com deal was found by Cheapflights users on 8/31. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/712:24 pm -
2 stops24h 01m
Deal found 8/31![Multiple Airlines logo]()
$136
This CheapOair deal was found by Cheapflights users on 9/1. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/167:50 pm -
Nonstop2h 17m
Deal found 9/1![Allegiant Air logo]()
$144
This Kiwi.com deal was found by Cheapflights users on 8/31. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/127:50 pm -
Nonstop2h 17m
Deal found 8/31![Allegiant Air logo]()
$158
This Kiwi.com deal was found by Cheapflights users on 8/29. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/2910:39 am -
1 stop24h 04m
Deal found 8/29![Multiple Airlines logo]()
$174
This Kiwi.com deal was found by Cheapflights users on 8/29. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/3110:41 am -
2 stops47h 00m
Deal found 8/29![Multiple Airlines logo]()
$178
This Cheapflightsfares deal was found by Cheapflights users on 8/31. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/98:21 pm -
Nonstop2h 16m
Deal found 8/31![Allegiant Air logo]()
$183
Find 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 2, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $140 (CheapOair) |
One-way from | $63 (Super.com) |
Popular in | November |
Cheapest in | October |
Average price | $306 |
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 7,457,451 searches. Data last updated September 2, 2026.
Use the filters below to find and compare flights from Denver to Oshkosh that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
DenverAppleton
DEN Denver Intl - ATW Appleton Intl
DENATW
Denver Intl
Fri 12/11
3:12 pm-9:22 pm
1 stop5h 10m
Appleton Intl
Tue 12/15
10:00 am-2:55 pm
1 stop5h 55m
$319
DenverAppleton
DEN Denver Intl - ATW Appleton Intl
DENATW
Denver Intl
Mon 10/12
6:05 am-11:38 am
1 stop4h 33m
Appleton Intl
Fri 10/23
5:35 pm-11:44 pm
1 stop7h 09m
$319
DenverAppleton
DEN Denver Intl - ATW Appleton Intl
DENATW
Denver Intl
Sat 10/10
5:46 pm-9:08 pm
Nonstop2h 22m
Appleton Intl
Sat 10/17
2:36 pm-7:45 pm
1 stop6h 09m
$348
DenverAppleton
DEN Denver Intl - ATW Appleton Intl
DENATW
Denver Intl
Tue 9/15
5:32 pm-8:54 pm
Nonstop2h 22m
Appleton Intl
Tue 9/22
5:00 pm-10:13 pm
1 stop6h 13m
$350
DenverAppleton
DEN Denver Intl - ATW Appleton Intl
DENATW
Denver Intl
Sat 9/12
4:40 pm-10:58 pm
1 stop5h 18m
Appleton Intl
Tue 9/22
5:00 pm-10:13 pm
1 stop6h 13m
$374
DenverAppleton
DEN Denver Intl - ATW Appleton Intl
DENATW
Denver Intl
Thu 10/22
5:46 pm-9:08 pm
Nonstop2h 22m
Appleton Intl
Mon 10/26
8:30 am-10:33 am
Nonstop3h 03m
$389
DenverAppleton
DEN Denver Intl - ATW Appleton Intl
DENATW
Denver Intl
Fri 12/11
4:15 pm-11:12 pm
1 stop5h 57m
Appleton Intl
Mon 12/14
5:05 pm-11:14 pm
1 stop7h 09m
$399
Quickest round-trip
DenverAppleton
DEN Denver Intl - ATW Appleton Intl
DENATW
Denver Intl
Fri 9/25
5:46 pm-9:08 pm
Nonstop2h 22m
Appleton Intl
Sun 9/27
8:50 am-10:35 am
Nonstop2h 45m
$403
DenverAppleton
DEN Denver Intl - ATW Appleton Intl
DENATW
Denver Intl
Mon 10/12
5:46 pm-9:08 pm
Nonstop2h 22m
Appleton Intl
Fri 10/23
2:36 pm-9:44 pm
1 stop8h 08m
$409
DenverAppleton
DEN Denver Intl - ATW Appleton Intl
DENATW
Denver Intl
Thu 9/17
5:32 pm-8:54 pm
Nonstop2h 22m
Appleton Intl
Tue 9/22
5:00 pm-10:13 pm
1 stop6h 13m
$415
Showing 1-10 of 20 resultsSorted by cheapest first
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.
DEN-ATW
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
DEN-OS9
DEN-ATW
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 2, 2026.
It’s typically best to fly out from Denver to Oshkosh in the afternoon. Doing so could potentially save you 18% on the flight price compared to flying at noon, which is usually more expensive.
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 2, 2026.
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 (3 on average).
How much does it cost to fly round-trip from Denver to Oshkosh?
Airfare is below average for this route at the moment.
Denver to Oshkosh flights typically cost between $253 and $421 in October.The cheapest round-trip price found within the last 5 days was $140 on Allegiant Air (Oct 26-Nov 2).
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 August 29, 2026.
Travelers seeking maximum savings on their Denver to Oshkosh flight should consider departing on Saturday afternoons when fares are most often at their lowest. Monday at noon 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 2, 2026.
Peruse reviews from past customers who have flown with Delta,United Airlines, andAllegiant Air 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.
Comfort
7.8
Food
7.2
Entertainment
7.8
Overall
7.8
Boarding
8.1
Crew
8.5
Reviews
1 / 20
8.0
ExcellentJorge,Aug 2026
TPA - ATL
Comfort
7.8
Food
7.2
Entertainment
7.8
Overall
7.8
Boarding
8.1
Crew
8.5
Reviews
1 / 20
8.0
ExcellentJorge,Aug 2026
TPA - ATL
Comfort
7.8
Food
7.2
Entertainment
7.8
Overall
7.8
Boarding
8.1
Crew
8.5
Reviews
1 / 20
8.0
ExcellentJorge,Aug 2026
TPA - ATL
Comfort
7.8
Food
7.2
Entertainment
7.8
Overall
7.8
Boarding
8.1
Crew
8.5
Reviews
1 / 20
8.0
ExcellentJorge,Aug 2026
TPA - ATL
Comfort
7.8
Food
7.2
Entertainment
7.8
Overall
7.8
Boarding
8.1
Crew
8.5
Reviews
1 / 20
8.0
ExcellentJorge,Aug 2026
TPA - ATL
Related info for your journey
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Denver and Oshkosh flights
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Top 6 airlines flying from Denver to Oshkosh
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| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$69 | Average$230 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$88 | Average$202 | FlexibilityNo cancel fee | On-time88% | |
| Cheapest$216 | Average$382 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$228 | Average$368 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$238 | Average$356 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$273 | Average$432 | FlexibilityNo cancel fee | On-time63% |