$60+ 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 10/5. Fares are subject to change and may not be available on all flights or dates of travel.
MKE — DEN
Aug 18 — Aug 251
Round-trip
1 adult, Economy
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Find cheap flights from Oshkosh to Denver 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 Oshkosh to Denver Intl are usually found in September or October, booked 90 days in advance, depart on a Monday or Friday and return on a Monday
Cheap flight deals from Oshkosh to Denver
Cheapest
Best
Last-minute
One-way
Cheapest flights from Oshkosh to DenverExplore 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 July 19, 2026.
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 July 19, 2026.
This Kiwi.com deal was found by Cheapflights users on 7/15. 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 10/197:30 am
ATW
- DEN
1 stop15h 19m
Multiple Airlines
Fri 10/307:50 pm
DEN
- ATW
Nonstop2h 17m
Multiple Airlines
Deal found 7/15![Multiple Airlines logo]()
$221
This Kiwi.com deal was found by Cheapflights users on 7/15. 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 9/45:32 pm
ATW
- DEN
Nonstop2h 31m
Allegiant Air
Fri 9/117:50 pm
DEN
- ATW
Nonstop2h 17m
Allegiant Air
Deal found 7/15![Allegiant Air logo]()
$224
This Cheapflightsfares deal was found by Cheapflights users on 7/17. 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 9/211:27 pm
ATW
- DEN
Nonstop2h 31m
Allegiant Air
Mon 9/283:48 pm
DEN
- ATW
Nonstop2h 17m
Allegiant Air
Deal found 7/17![Allegiant Air logo]()
$225
This Kiwi.com deal was found by Cheapflights users on 7/15. 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 11/25:29 pm
ATW
- DEN
Nonstop2h 31m
Multiple Airlines
Wed 11/117:08 pm
DEN
- ATW
1 stop18h 39m
Multiple Airlines
Deal found 7/15![Multiple Airlines logo]()
$226
This Kiwi.com deal was found by Cheapflights users on 7/17. 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 9/115:29 pm
ATW
- DEN
Nonstop2h 31m
Multiple Airlines
Wed 9/1610:30 am
DEN
- ATW
2 stops35h 35m
Multiple Airlines
Deal found 7/17![Multiple Airlines logo]()
$228
This Kiwi.com deal was found by Cheapflights users on 7/14. 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 8/145:08 pm
ATW
- DEN
Nonstop2h 41m
Allegiant Air
Mon 8/177:39 pm
DEN
- ATW
Nonstop2h 21m
Allegiant Air
Deal found 7/14![Allegiant Air logo]()
$229
This Kiwi.com deal was found by Cheapflights users on 7/15. 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 8/318:30 am
ATW
- DEN
1 stop7h 31m
Multiple Airlines
Mon 9/77:50 pm
DEN
- ATW
Nonstop2h 17m
Multiple Airlines
Deal found 7/15![Multiple Airlines logo]()
$231
This Kiwi.com deal was found by Cheapflights users on 7/15. 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 9/145:36 pm
ATW
- DEN
2 stops31h 17m
Multiple Airlines
Fri 9/187:50 pm
DEN
- ATW
Nonstop2h 17m
Multiple Airlines
Deal found 7/15![Multiple Airlines logo]()
$232
This Kiwi.com deal was found by Cheapflights users on 7/15. 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 8/319:15 am
ATW
- DEN
Nonstop2h 34m
Allegiant Air
Mon 9/77:50 pm
DEN
- ATW
Nonstop2h 17m
Allegiant Air
Deal found 7/15![Allegiant Air logo]()
$233
This Kiwi.com deal was found by Cheapflights users on 7/14. 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 8/318:30 am
ATW
- DEN
1 stop7h 31m
Multiple Airlines
Sat 9/59:21 pm
DEN
- ATW
2 stops24h 44m
Multiple Airlines
Deal found 7/14![Multiple Airlines logo]()
$234
This Cheapflightsfares deal was found by Cheapflights users on 7/17. 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 8/75:08 pm
ATW
- DEN
Nonstop2h 41m
Allegiant Air
Mon 8/107:39 pm
DEN
- ATW
Nonstop2h 21m
Allegiant Air
Deal found 7/17![Allegiant Air logo]()
$235
Best flights from Oshkosh to DenverDiscover carefully curated flight deals from Oshkosh to Denver that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 19, 2026.
Discover carefully curated flight deals from Oshkosh to Denver that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 19, 2026.
This United Airlines deal was found by Cheapflights users on 7/16. 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 8/255:00 pm
ATW
- DEN
1 stop5h 44m
United Airlines
Sat 8/295:32 pm
DEN
- ATW
Nonstop2h 22m
United Airlines
Deal found 7/16![United Airlines logo]()
$359
This United Airlines deal was found by Cheapflights users on 7/16. 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 11/38:32 am
ATW
- DEN
Nonstop2h 37m
United Airlines
Tue 11/104:45 pm
DEN
- ATW
1 stop5h 17m
United Airlines
Deal found 7/16![United Airlines logo]()
$359
This United Airlines deal was found by Cheapflights users on 7/15. 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 9/128:00 am
ATW
- DEN
1 stop5h 45m
United Airlines
Sat 9/196:00 am
DEN
- ATW
1 stop7h 02m
United Airlines
Deal found 7/15![United Airlines logo]()
$369
This United Airlines deal was found by Cheapflights users on 7/18. 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 9/38:45 am
ATW
- DEN
Nonstop2h 45m
United Airlines
Sun 9/65:32 pm
DEN
- ATW
Nonstop2h 22m
United Airlines
Deal found 7/18![United Airlines logo]()
$399
This United Airlines deal was found by Cheapflights users on 7/15. 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 10/208:05 am
ATW
- DEN
1 stop8h 12m
United Airlines
Thu 10/295:29 pm
DEN
- ATW
Nonstop2h 14m
United Airlines
Deal found 7/15![United Airlines logo]()
$409
This United Airlines deal was found by Cheapflights users on 7/15. 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 8/228:45 am
ATW
- DEN
Nonstop2h 45m
United Airlines
Sun 8/236:00 am
DEN
- ATW
1 stop4h 53m
United Airlines
Deal found 7/15![United Airlines logo]()
$409
This United Airlines deal was found by Cheapflights users on 7/18. 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 10/168:50 am
ATW
- DEN
Nonstop2h 45m
United Airlines
Fri 10/235:46 pm
DEN
- ATW
Nonstop2h 22m
United Airlines
Deal found 7/18![United Airlines logo]()
$428
This United Airlines deal was found by Cheapflights users on 7/16. 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 8/15:30 pm
ATW
- DEN
1 stop7h 19m
United Airlines
Wed 8/55:40 pm
DEN
- ATW
Nonstop2h 24m
United Airlines
Deal found 7/16![United Airlines logo]()
$429
This United Airlines deal was found by Cheapflights users on 7/14. 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 8/118:45 am
ATW
- DEN
Nonstop2h 45m
United Airlines
Tue 8/185:32 pm
DEN
- ATW
Nonstop2h 22m
United Airlines
Deal found 7/14![United Airlines logo]()
$432
This United Airlines deal was found by Cheapflights users on 7/18. 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 8/198:45 am
ATW
- DEN
Nonstop2h 45m
United Airlines
Sun 8/236:00 am
DEN
- ATW
1 stop4h 53m
United Airlines
Deal found 7/18![United Airlines logo]()
$437
Last-minute flights from Oshkosh to DenverDiscover last-minute flight deals from Oshkosh to Denver. Data last updated July 19, 2026 and is based on user searches.
Discover last-minute flight deals from Oshkosh to Denver. Data last updated July 19, 2026 and is based on user searches.
This Cheapflightsfares deal was found by Cheapflights users on 7/17. 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 8/75:08 pm
ATW
- DEN
Nonstop2h 41m
Allegiant Air
Mon 8/107:39 pm
DEN
- ATW
Nonstop2h 21m
Allegiant Air
Deal found 7/17![Allegiant Air logo]()
$235
This Kiwi.com deal was found by Cheapflights users on 7/14. 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 8/145:08 pm
ATW
- DEN
Nonstop2h 41m
Allegiant Air
Mon 8/177:39 pm
DEN
- ATW
Nonstop2h 21m
Allegiant Air
Deal found 7/14![Allegiant Air logo]()
$229
This Kiwi.com deal was found by Cheapflights users on 7/14. 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 8/1711:02 am
ATW
- DEN
1 stop28h 59m
Multiple Airlines
Mon 8/3111:39 am
DEN
- ATW
Nonstop2h 18m
Multiple Airlines
Deal found 7/14![Multiple Airlines logo]()
$236
This Kiwi.com deal was found by Cheapflights users on 7/14. 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 8/175:08 pm
ATW
- DEN
Nonstop2h 41m
Multiple Airlines
Fri 8/218:26 pm
DEN
- ATW
2 stops49h 46m
Multiple Airlines
Deal found 7/14![Multiple Airlines logo]()
$253
This Kiwi.com deal was found by Cheapflights users on 7/15. 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 8/318:30 am
ATW
- DEN
1 stop7h 31m
Multiple Airlines
Mon 9/77:50 pm
DEN
- ATW
Nonstop2h 17m
Multiple Airlines
Deal found 7/15![Multiple Airlines logo]()
$231
This Kiwi.com deal was found by Cheapflights users on 7/15. 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 8/319:15 am
ATW
- DEN
Nonstop2h 34m
Allegiant Air
Mon 9/77:50 pm
DEN
- ATW
Nonstop2h 17m
Allegiant Air
Deal found 7/15![Allegiant Air logo]()
$233
This Kiwi.com deal was found by Cheapflights users on 7/14. 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 8/318:30 am
ATW
- DEN
1 stop7h 31m
Multiple Airlines
Sat 9/59:21 pm
DEN
- ATW
2 stops24h 44m
Multiple Airlines
Deal found 7/14![Multiple Airlines logo]()
$234
This Kiwi.com deal was found by Cheapflights users on 7/15. 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 8/319:15 am
ATW
- DEN
Nonstop2h 34m
Multiple Airlines
Thu 9/103:10 pm
DEN
- ATW
1 stop20h 04m
Multiple Airlines
Deal found 7/15![Multiple Airlines logo]()
$241
This Kiwi.com deal was found by Cheapflights users on 7/14. 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 8/318:30 am
ATW
- DEN
1 stop7h 31m
Multiple Airlines
Wed 9/98:44 pm
DEN
- ATW
2 stops25h 21m
Multiple Airlines
Deal found 7/14![Multiple Airlines logo]()
$251
One-way flights from Oshkosh to DenverSearch for one-way flight options from Oshkosh to Denver. Find affordable one-way fares based on user searches. Data last updated July 19, 2026.
Search for one-way flight options from Oshkosh to Denver. Find affordable one-way fares based on user searches. Data last updated July 19, 2026.
This Cheapflightsfares deal was found by Cheapflights users on 7/15. 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 10/55:29 pm
ATW
- DEN
Nonstop2h 31m
Allegiant Air
Deal found 7/15![Allegiant Air logo]()
$60
This CheapOair deal was found by Cheapflights users on 7/18. 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 8/175:08 pm
ATW
- DEN
Nonstop2h 41m
Allegiant Air
Deal found 7/18![Allegiant Air logo]()
$89
This Super.com deal was found by Cheapflights users on 7/17. 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 8/145:08 pm
ATW
- DEN
Nonstop2h 41m
Allegiant Air
Deal found 7/17![Allegiant Air logo]()
$126
This Kiwi.com deal was found by Cheapflights users on 7/15. 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 8/234:17 pm
ATW
- DEN
2 stops40h 17m
Multiple Airlines
Deal found 7/15![Multiple Airlines logo]()
$129
This Kiwi.com deal was found by Cheapflights users on 7/18. 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 8/1711:02 am
ATW
- DEN
1 stop28h 59m
Multiple Airlines
Deal found 7/18![Multiple Airlines logo]()
$146
This Kiwi.com deal was found by Cheapflights users on 7/14. 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 8/75:08 pm
ATW
- DEN
Nonstop2h 41m
Allegiant Air
Deal found 7/14![Allegiant Air logo]()
$147
This Kiwi.com deal was found by Cheapflights users on 7/14. 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 8/162:44 pm
ATW
- DEN
2 stops26h 10m
Multiple Airlines
Deal found 7/14![Multiple Airlines logo]()
$154
This Super.com deal was found by Cheapflights users on 7/17. 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.
Mon 8/105:08 pm
ATW
- DEN
Nonstop2h 41m
Allegiant Air
Deal found 7/17![Allegiant Air logo]()
$161
This Kiwi.com deal was found by Cheapflights users on 7/18. 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 8/109:36 am
ATW
- DEN
2 stops24h 27m
Multiple Airlines
Deal found 7/18![Multiple Airlines logo]()
$162
Find flight deals from Oshkosh to Denver
Keep the following information in mind while searching for Oshkosh to Denver flight deals. Data was last updated July 19, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $221 (Kiwi.com) |
One-way from | $60 (Cheapflightsfares) |
Popular in | March |
Cheapest in | September |
Average price | $357 |
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 July 19, 2026.
Use the filters below to find and compare flights from Oshkosh to Denver that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
AppletonDenver
ATW - DEN
ATWDEN
Appleton Intl
Tue 8/25
5:00 pm-9:44 pm
1 stop5h 44m
Denver Intl
Sat 8/29
5:32 pm-8:54 pm
Nonstop2h 22m
$359
AppletonDenver
ATW - DEN
ATWDEN
Appleton Intl
Tue 11/3
8:32 am-10:09 am
Nonstop2h 37m
Denver Intl
Tue 11/10
4:45 pm-11:02 pm
1 stop5h 17m
$359
AppletonDenver
ATW - DEN
ATWDEN
Appleton Intl
Sat 9/12
8:00 am-12:45 pm
1 stop5h 45m
Denver Intl
Sat 9/19
6:00 am-2:02 pm
1 stop7h 02m
$369
Quickest round-trip
AppletonDenver
ATW - DEN
ATWDEN
Appleton Intl
Thu 9/3
8:45 am-10:30 am
Nonstop2h 45m
Denver Intl
Sun 9/6
5:32 pm-8:54 pm
Nonstop2h 22m
$399
AppletonDenver
ATW - DEN
ATWDEN
Appleton Intl
Tue 10/20
8:05 am-3:17 pm
1 stop8h 12m
Denver Intl
Thu 10/29
5:29 pm-8:43 pm
Nonstop2h 14m
$409
AppletonDenver
ATW - DEN
ATWDEN
Appleton Intl
Sat 8/22
8:45 am-10:30 am
Nonstop2h 45m
Denver Intl
Sun 8/23
6:00 am-11:53 am
1 stop4h 53m
$409
AppletonDenver
ATW - DEN
ATWDEN
Appleton Intl
Fri 10/16
8:50 am-10:35 am
Nonstop2h 45m
Denver Intl
Fri 10/23
5:46 pm-9:08 pm
Nonstop2h 22m
$428
AppletonDenver
ATW - DEN
ATWDEN
Appleton Intl
Sat 8/1
5:30 pm-11:49 pm
1 stop7h 19m
Denver Intl
Wed 8/5
5:40 pm-9:04 pm
Nonstop2h 24m
$429
AppletonDenver
ATW - DEN
ATWDEN
Appleton Intl
Tue 8/11
8:45 am-10:30 am
Nonstop2h 45m
Denver Intl
Tue 8/18
5:32 pm-8:54 pm
Nonstop2h 22m
$432
AppletonDenver
ATW - DEN
ATWDEN
Appleton Intl
Wed 8/19
8:45 am-10:30 am
Nonstop2h 45m
Denver Intl
Sun 8/23
6:00 am-11:53 am
1 stop4h 53m
$437
Showing 1-10 of 21 resultsSorted by cheapest first
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.
ATW-DEN
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
OS9-DEN
ATW-DEN
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 July 19, 2026.
It’s typically best to fly out from Oshkosh to Denver in the evening. Doing so could potentially save you 43% on the flight price compared to flying in the morning, which is usually more expensive.
Weekly flight availability from Oshkosh to Denver
Explore weekly flight availability from Oshkosh to Denver. 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 19, 2026.
The most flights from OS9 to DEN are scheduled on a Friday (9 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (2 on average).
How much does it cost to fly round-trip from Oshkosh to Denver?
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 July 18, 2026.
Travelers seeking maximum savings on their Oshkosh to Denver flight should consider departing on Saturday at noon 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.
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 July 19, 2026.
Get a feel of what it's like to fly with Delta,United Airlines, andAllegiant Air from Oshkosh to Denver by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Boarding
8.1
Comfort
7.8
Crew
8.5
Entertainment
7.8
Overall
7.8
Food
7.2
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Boarding
8.1
Comfort
7.8
Crew
8.5
Entertainment
7.8
Overall
7.8
Food
7.2
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Boarding
8.1
Comfort
7.8
Crew
8.5
Entertainment
7.8
Overall
7.8
Food
7.2
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Boarding
8.1
Comfort
7.8
Crew
8.5
Entertainment
7.8
Overall
7.8
Food
7.2
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Boarding
8.1
Comfort
7.8
Crew
8.5
Entertainment
7.8
Overall
7.8
Food
7.2
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
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.
Traveling to a place near Denver?
Book flights to Denver if you plan to visit one of these locationsThornton
Black Hawk
Westminster
Centennial
Lakewood
Broomfield
Golden
Greeley
Lone Tree
Wheat Ridge
Silverthorne
Central City
Fort Morgan
Cripple Creek
Winter Park
Manitou Springs
Frisco
Englewood
Glendale
Evergreen
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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 July 19, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$62 | Average$184 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$104 | Average$200 | FlexibilityNo cancel fee | On-time88% | |
| Cheapest$152 | Average$363 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$182 | Average$379 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$206 | Average$430 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$211 | Average$351 | FlexibilityNo cancel fee | On-time71% |