$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
Sep 5 — Sep 121
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 September, booked 44 days in advance, depart on a Sunday or Monday 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 August 6, 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 August 6, 2026.
This Booking.com deal was found by Cheapflights users on 8/6. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/307:50 pm -
Nonstop2h 17m
Mon 11/25:29 pm -
Nonstop2h 31m
Deal found 8/6![Allegiant Air logo]()
$94
This Cheapflightsfares deal was found by Cheapflights users on 8/4. 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 9/117:50 pm -
Nonstop2h 17m
Mon 9/281:27 pm -
Nonstop2h 31m
Deal found 8/4![Allegiant Air logo]()
$113
This Cheapflightsfares deal was found by Cheapflights users on 8/4. 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 10/27:50 pm -
Nonstop2h 17m
Mon 10/55:29 pm -
Nonstop2h 31m
Deal found 8/4![Allegiant Air logo]()
$125
This Cheapflightsfares deal was found by Cheapflights users on 8/2. 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 Cheapflightsfares 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 8/2![Allegiant Air logo]()
$131
This Cheapflightsfares deal was found by Cheapflights users on 8/3. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/117:50 pm -
Nonstop2h 17m
Mon 9/141:27 pm -
Nonstop2h 31m
Deal found 8/3![Allegiant Air logo]()
$198
This Kiwi.com deal was found by Cheapflights users on 8/4. 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 9/117:50 pm -
Nonstop2h 17m
Mon 9/286:30 am -
1 stop11h 46m
Deal found 8/4![Multiple Airlines logo]()
$213
This Kiwi.com deal was found by Cheapflights users on 8/5. 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 9/3012:24 pm -
2 stops32h 50m
Mon 10/55:29 pm -
Nonstop2h 31m
Deal found 8/5![Multiple Airlines logo]()
$215
This Kiwi.com deal was found by Cheapflights users on 8/5. 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.
Tue 9/297:10 pm -
2 stops21h 20m
Mon 10/55:29 pm -
Nonstop2h 31m
Deal found 8/5![Multiple Airlines logo]()
$218
This Kiwi.com deal was found by Cheapflights users on 8/4. 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 9/2312:24 pm -
2 stops33h 41m
Mon 9/281:27 pm -
Nonstop2h 31m
Deal found 8/4![Multiple Airlines logo]()
$224
This Cheapflightsfares deal was found by Cheapflights users on 8/2. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/147:39 pm -
Nonstop2h 21m
Mon 8/175:08 pm -
Nonstop2h 41m
Deal found 8/2![Allegiant Air logo]()
$225
This Kiwi.com deal was found by Cheapflights users on 8/3. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/117:50 pm -
Nonstop2h 17m
Mon 9/146:30 am -
1 stop17h 05m
Deal found 8/3![Multiple Airlines logo]()
$226
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 August 6, 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 August 6, 2026.
This United Airlines deal was found by Cheapflights users on 8/3. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/115:25 pm -
Nonstop2h 23m
Tue 11/178:30 am -
Nonstop3h 03m
Deal found 8/3![United Airlines logo]()
$279
This United Airlines deal was found by Cheapflights users on 8/6. 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 9/22:50 pm -
1 stop7h 28m
Fri 9/118:45 am -
Nonstop2h 45m
Deal found 8/6![United Airlines logo]()
$289
This United Airlines deal was found by Cheapflights users on 8/5. 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 9/25:32 pm -
Nonstop2h 22m
Wed 9/95:00 pm -
1 stop5h 43m
Deal found 8/5![United Airlines logo]()
$289
This United Airlines deal was found by Cheapflights users on 8/6. 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 8/273:50 pm -
1 stop6h 28m
Sun 8/308:45 am -
Nonstop2h 45m
Deal found 8/6![United Airlines logo]()
$310
This United Airlines deal was found by Cheapflights users on 8/6. 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 9/35:32 pm -
Nonstop2h 22m
Sat 9/128:45 am -
Nonstop2h 45m
Deal found 8/6![United Airlines logo]()
$359
This United Airlines deal was found by Cheapflights users on 8/6. 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 8/285:32 pm -
Nonstop2h 22m
Mon 8/315:00 pm -
1 stop5h 44m
Deal found 8/6![United Airlines logo]()
$369
This United Airlines deal was found by Cheapflights users on 8/6. 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.
Sun 8/165:32 pm -
Nonstop2h 22m
Sun 8/238:45 am -
Nonstop2h 45m
Deal found 8/6![United Airlines logo]()
$416
This United Airlines deal was found by Cheapflights users on 8/4. 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 9/35:32 pm -
Nonstop2h 22m
Tue 9/88:45 am -
Nonstop2h 45m
Deal found 8/4![United Airlines logo]()
$462
This United Airlines deal was found by Cheapflights users on 8/3. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/228:35 am -
1 stop5h 53m
Mon 8/248:45 am -
Nonstop2h 45m
Deal found 8/3![United Airlines logo]()
$469
This United Airlines deal was found by Cheapflights users on 8/2. 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 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 10/412:28 pm -
1 stop19h 11m
Deal found 8/2![United Airlines logo]()
$507
Last-minute flights from Denver to OshkoshDiscover last-minute flight deals from Denver to Oshkosh. Data last updated August 6, 2026 and is based on user searches.
Discover last-minute flight deals from Denver to Oshkosh. Data last updated August 6, 2026 and is based on user searches.
This Cheapflightsfares deal was found by Cheapflights users on 8/2. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/147:39 pm -
Nonstop2h 21m
Mon 8/175:08 pm -
Nonstop2h 41m
Deal found 8/2![Allegiant Air logo]()
$225
This Cheapflightsfares deal was found by Cheapflights users on 8/3. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/177:39 pm -
Nonstop2h 21m
Mon 8/248:45 am -
Nonstop2h 34m
Deal found 8/3![Allegiant Air logo]()
$232
This Cheapflightsfares deal was found by Cheapflights users on 8/4. 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 9/117:50 pm -
Nonstop2h 17m
Mon 9/281:27 pm -
Nonstop2h 31m
Deal found 8/4![Allegiant Air logo]()
$113
This Cheapflightsfares deal was found by Cheapflights users on 8/3. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/117:50 pm -
Nonstop2h 17m
Mon 9/141:27 pm -
Nonstop2h 31m
Deal found 8/3![Allegiant Air logo]()
$198
This Kiwi.com deal was found by Cheapflights users on 8/4. 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 9/117:50 pm -
Nonstop2h 17m
Mon 9/286:30 am -
1 stop11h 46m
Deal found 8/4![Multiple Airlines logo]()
$213
This Kiwi.com deal was found by Cheapflights users on 8/3. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/117:50 pm -
Nonstop2h 17m
Mon 9/146:30 am -
1 stop17h 05m
Deal found 8/3![Multiple Airlines logo]()
$226
This Kiwi.com deal was found by Cheapflights users on 8/4. 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 9/2312:24 pm -
2 stops33h 41m
Mon 9/281:27 pm -
Nonstop2h 31m
Deal found 8/4![Multiple Airlines logo]()
$224
This Cheapflightsfares deal was found by Cheapflights users on 8/2. 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 Cheapflightsfares 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 8/2![Allegiant Air logo]()
$131
This Cheapflightsfares deal was found by Cheapflights users on 8/5. 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 9/283:48 pm -
Nonstop2h 17m
Fri 10/96:01 pm -
Nonstop2h 30m
Deal found 8/5![Allegiant Air logo]()
$229
This Kiwi.com deal was found by Cheapflights users on 8/5. 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.
Tue 9/297:10 pm -
2 stops21h 20m
Mon 10/55:29 pm -
Nonstop2h 31m
Deal found 8/5![Multiple Airlines logo]()
$218
This Kiwi.com deal was found by Cheapflights users on 8/5. 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 9/3012:24 pm -
2 stops32h 50m
Mon 10/55:29 pm -
Nonstop2h 31m
Deal found 8/5![Multiple Airlines logo]()
$215
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 August 6, 2026.
Search for one-way flight options from Denver to Oshkosh. Find affordable one-way fares based on user searches. Data last updated August 6, 2026.
This Trip.com deal was found by Cheapflights users on 8/4. 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.
Fri 9/117:50 pm -
Nonstop2h 17m
Deal found 8/4![Allegiant Air logo]()
$63
This Super.com deal was found by Cheapflights users on 8/5. 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 9/47:53 pm -
Nonstop2h 17m
Deal found 8/5![Allegiant Air logo]()
$71
This Cheapflightsfares deal was found by Cheapflights users on 8/4. 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 9/257:50 pm -
Nonstop2h 17m
Deal found 8/4![Allegiant Air logo]()
$85
This Cheapflightsfares deal was found by Cheapflights users on 8/4. 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 8/4![Allegiant Air logo]()
$99
This Kiwi.com deal was found by Cheapflights users on 8/4. 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 9/1010:50 pm -
1 stop21h 19m
Deal found 8/4![Multiple Airlines logo]()
$135
This Kiwi.com deal was found by Cheapflights users on 8/5. 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 10/296:55 am -
1 stop27h 48m
Deal found 8/5![Multiple Airlines logo]()
$140
This Kiwi.com deal was found by Cheapflights users on 8/4. 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 10/37:00 am -
1 stop14h 40m
Deal found 8/4![Multiple Airlines logo]()
$143
This Cheapflightsfares deal was found by Cheapflights users on 8/4. 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 9/283:48 pm -
Nonstop2h 17m
Deal found 8/4![Allegiant Air logo]()
$156
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 August 6, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $94 (Booking.com) |
One-way from | $63 (Trip.com) |
Popular in | November |
Cheapest in | October |
Average price | $293 |
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 August 6, 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
Wed 11/11
5:25 pm-8:48 pm
Nonstop2h 23m
Appleton Intl
Tue 11/17
8:30 am-10:33 am
Nonstop3h 03m
$279
DenverAppleton
DEN Denver Intl - ATW Appleton Intl
DENATW
Denver Intl
Wed 9/2
2:50 pm-11:18 pm
1 stop7h 28m
Appleton Intl
Fri 9/11
8:45 am-10:30 am
Nonstop2h 45m
$289
DenverAppleton
DEN Denver Intl - ATW Appleton Intl
DENATW
Denver Intl
Wed 9/2
5:32 pm-8:54 pm
Nonstop2h 22m
Appleton Intl
Wed 9/9
5:00 pm-9:43 pm
1 stop5h 43m
$289
DenverAppleton
DEN Denver Intl - ATW Appleton Intl
DENATW
Denver Intl
Thu 8/27
3:50 pm-11:18 pm
1 stop6h 28m
Appleton Intl
Sun 8/30
8:45 am-10:30 am
Nonstop2h 45m
$310
Quickest round-trip
DenverAppleton
DEN Denver Intl - ATW Appleton Intl
DENATW
Denver Intl
Thu 9/3
5:32 pm-8:54 pm
Nonstop2h 22m
Appleton Intl
Sat 9/12
8:45 am-10:30 am
Nonstop2h 45m
$359
DenverAppleton
DEN Denver Intl - ATW Appleton Intl
DENATW
Denver Intl
Fri 8/28
5:32 pm-8:54 pm
Nonstop2h 22m
Appleton Intl
Mon 8/31
5:00 pm-9:44 pm
1 stop5h 44m
$369
DenverAppleton
DEN Denver Intl - ATW Appleton Intl
DENATW
Denver Intl
Sun 8/16
5:32 pm-8:54 pm
Nonstop2h 22m
Appleton Intl
Sun 8/23
8:45 am-10:30 am
Nonstop2h 45m
$416
DenverAppleton
DEN Denver Intl - ATW Appleton Intl
DENATW
Denver Intl
Thu 9/3
5:32 pm-8:54 pm
Nonstop2h 22m
Appleton Intl
Tue 9/8
8:45 am-10:30 am
Nonstop2h 45m
$462
DenverAppleton
DEN Denver Intl - ATW Appleton Intl
DENATW
Denver Intl
Sat 8/22
8:35 am-3:28 pm
1 stop5h 53m
Appleton Intl
Mon 8/24
8:45 am-10:30 am
Nonstop2h 45m
$469
DenverAppleton
DEN Denver Intl - ATW Appleton Intl
DENATW
Denver Intl
Fri 9/25
5:46 pm-9:08 pm
Nonstop2h 22m
Appleton Intl
Sun 10/4
12:28 pm-6:39 am
1 stop19h 11m
$507
Showing 1-10 of 18 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 August 6, 2026.
It’s typically best to fly out from Denver to Oshkosh in the morning. Doing so could potentially save you 12% 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 August 6, 2026.
The most flights from DEN to OS9 are scheduled on a Wednesday (7 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (2 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 $204 and $349 in October.The cheapest round-trip price found within the last 5 days was $94 on Allegiant Air (Oct 30-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 July 11, 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. Saturday 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 August 6, 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.
Overall
7.8
Crew
8.5
Comfort
7.8
Boarding
8.1
Entertainment
7.8
Food
7.2
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Overall
7.8
Crew
8.5
Comfort
7.8
Boarding
8.1
Entertainment
7.8
Food
7.2
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Overall
7.8
Crew
8.5
Comfort
7.8
Boarding
8.1
Entertainment
7.8
Food
7.2
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Overall
7.8
Crew
8.5
Comfort
7.8
Boarding
8.1
Entertainment
7.8
Food
7.2
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Overall
7.8
Crew
8.5
Comfort
7.8
Boarding
8.1
Entertainment
7.8
Food
7.2
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
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| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$61 | Average$226 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$88 | Average$199 | FlexibilityNo cancel fee | On-time88% | |
| Cheapest$214 | Average$380 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$217 | Average$429 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$218 | Average$358 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$223 | Average$365 | FlexibilityNo cancel fee | On-timeN/A |