$82+ 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 6/26. Fares are subject to change and may not be available on all flights or dates of travel.
MKE — DEN
Jul 19 — Jul 261
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 Sunday or Thursday 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 June 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 June 19, 2026.
This Kiwi.com deal was found by Cheapflights users on 6/17. 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.
Mon 9/146:30 am
ATW
- DEN
1 stop8h 03m
Multiple Airlines
Fri 9/187:50 pm
DEN
- ATW
Nonstop2h 17m
Multiple Airlines
Deal found 6/17![Multiple Airlines logo]()
$234
This Cheapflightsfares deal was found by Cheapflights users on 6/18. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/264:58 pm
ATW
- DEN
Nonstop2h 41m
Allegiant Air
Fri 7/37:18 pm
DEN
- ATW
Nonstop2h 21m
Allegiant Air
Deal found 6/18![Allegiant Air logo]()
$236
This Mytrip deal was found by Cheapflights users on 6/18. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/244:57 pm
ATW
- DEN
Nonstop2h 31m
Allegiant Air
Mon 7/277:18 pm
DEN
- ATW
Nonstop2h 21m
Allegiant Air
Deal found 6/18![Allegiant Air logo]()
$237
This CheapOair deal was found by Cheapflights users on 6/17. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/174:57 pm
ATW
- DEN
Nonstop2h 31m
Allegiant Air
Fri 7/247:18 pm
DEN
- ATW
Nonstop2h 21m
Allegiant Air
Deal found 6/17![Allegiant Air logo]()
$239
This CheapOair deal was found by Cheapflights users on 6/16. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/264:58 pm
ATW
- DEN
Nonstop2h 41m
Allegiant Air
Mon 6/297:29 pm
DEN
- ATW
Nonstop2h 15m
Allegiant Air
Deal found 6/16![Allegiant Air logo]()
$240
This Cheapflightsfares deal was found by Cheapflights users on 6/18. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/174:57 pm
ATW
- DEN
Nonstop2h 31m
Allegiant Air
Mon 7/207:18 pm
DEN
- ATW
Nonstop2h 21m
Allegiant Air
Deal found 6/18![Allegiant Air logo]()
$241
This Kiwi.com deal was found by Cheapflights users on 6/16. 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 Kiwi.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
Mon 8/177:39 pm
DEN
- ATW
Nonstop2h 21m
Allegiant Air
Deal found 6/16![Allegiant Air logo]()
$243
This Kiwi.com deal was found by Cheapflights users on 6/17. 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.
Mon 10/265:29 pm
ATW
- DEN
Nonstop2h 31m
Multiple Airlines
Fri 10/301:34 pm
DEN
- ATW
1 stop25h 47m
Multiple Airlines
Deal found 6/17![Multiple Airlines logo]()
$247
This Kiwi.com deal was found by Cheapflights users on 6/18. 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 9/286:30 am
ATW
- DEN
1 stop8h 03m
Multiple Airlines
Fri 10/27:50 pm
DEN
- ATW
Nonstop2h 17m
Multiple Airlines
Deal found 6/18![Multiple Airlines logo]()
$248
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 June 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 June 19, 2026.
This United Airlines deal was found by Cheapflights users on 6/18. 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 8/75:29 pm
ATW
- DEN
1 stop7h 19m
United Airlines
Wed 8/125:32 pm
DEN
- ATW
Nonstop2h 22m
United Airlines
Deal found 6/18![United Airlines logo]()
$279
This Delta deal was found by Cheapflights users on 6/18. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/304:16 pm
ATW
- DEN
1 stop4h 46m
Delta
Mon 7/66:00 am
DEN
- ATW
1 stop3h 47m
Delta
Deal found 6/18![Delta logo]()
$364
This United Airlines deal was found by Cheapflights users on 6/14. 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 8/258:45 am
ATW
- DEN
Nonstop2h 45m
United Airlines
Sat 8/295:32 pm
DEN
- ATW
Nonstop2h 22m
United Airlines
Deal found 6/14![United Airlines logo]()
$349
This United Airlines deal was found by Cheapflights users on 6/14. 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.
Fri 8/215:00 pm
ATW
- DEN
1 stop7h 53m
United Airlines
Mon 8/245:32 pm
DEN
- ATW
Nonstop2h 22m
United Airlines
Deal found 6/14![United Airlines logo]()
$351
This Delta deal was found by Cheapflights users on 6/17. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/2211:00 am
ATW
- DEN
1 stop5h 23m
Delta
Mon 8/249:29 am
DEN
- ATW
2 stops12h 27m
Delta
Deal found 6/17![Delta logo]()
$395
This United Airlines deal was found by Cheapflights users on 6/18. 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.
Sat 10/32:41 pm
ATW
- DEN
1 stop8h 03m
United Airlines
Tue 10/65:46 pm
DEN
- ATW
Nonstop2h 22m
United Airlines
Deal found 6/18![United Airlines logo]()
$359
This Delta deal was found by Cheapflights users on 6/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/26:00 am
ATW
- DEN
1 stop7h 10m
Delta
Sun 7/56:00 am
DEN
- ATW
1 stop3h 47m
Delta
Deal found 6/14![Delta logo]()
$399
This United Airlines deal was found by Cheapflights users on 6/18. 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.
Sat 8/155:00 pm
ATW
- DEN
1 stop7h 53m
United Airlines
Sat 8/225:32 pm
DEN
- ATW
Nonstop2h 22m
United Airlines
Deal found 6/18![United Airlines logo]()
$359
This Delta deal was found by Cheapflights users on 6/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/311:27 am
ATW
- DEN
1 stop5h 11m
Delta
Mon 7/69:19 am
DEN
- ATW
1 stop5h 17m
Delta
Deal found 6/14![Delta logo]()
$414
This United Airlines deal was found by Cheapflights users on 6/16. 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 7/148:45 am
ATW
- DEN
Nonstop2h 46m
United Airlines
Tue 7/215:40 pm
DEN
- ATW
Nonstop2h 24m
United Airlines
Deal found 6/16![United Airlines logo]()
$373
This Delta deal was found by Cheapflights users on 6/18. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/3010:57 am
ATW
- DEN
2 stops12h 34m
Delta
Thu 10/84:00 pm
DEN
- ATW
1 stop4h 35m
Delta
Deal found 6/18![Delta logo]()
$423
This United Airlines deal was found by Cheapflights users on 6/18. 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.
Sun 7/198:32 am
ATW
- DEN
Nonstop2h 46m
United Airlines
Sat 7/254:59 pm
DEN
- ATW
1 stop5h 24m
United Airlines
Deal found 6/18![United Airlines logo]()
$409
Last-minute flights from Oshkosh to DenverDiscover last-minute flight deals from Oshkosh to Denver. Data last updated June 19, 2026 and is based on user searches.
Discover last-minute flight deals from Oshkosh to Denver. Data last updated June 19, 2026 and is based on user searches.
This Cheapflightsfares deal was found by Cheapflights users on 6/18. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/264:58 pm
ATW
- DEN
Nonstop2h 41m
Allegiant Air
Fri 7/37:18 pm
DEN
- ATW
Nonstop2h 21m
Allegiant Air
Deal found 6/18![Allegiant Air logo]()
$236
This CheapOair deal was found by Cheapflights users on 6/16. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/264:58 pm
ATW
- DEN
Nonstop2h 41m
Allegiant Air
Mon 6/297:29 pm
DEN
- ATW
Nonstop2h 15m
Allegiant Air
Deal found 6/16![Allegiant Air logo]()
$240
This Kiwi.com deal was found by Cheapflights users on 6/17. 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 6/264:58 pm
ATW
- DEN
Nonstop2h 41m
Allegiant Air
Mon 7/67:18 pm
DEN
- ATW
Nonstop2h 21m
Allegiant Air
Deal found 6/17![Allegiant Air logo]()
$250
This Kiwi.com deal was found by Cheapflights users on 6/16. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/294:58 pm
ATW
- DEN
Nonstop2h 41m
Allegiant Air
Mon 7/67:18 pm
DEN
- ATW
Nonstop2h 21m
Allegiant Air
Deal found 6/16![Allegiant Air logo]()
$254
This CheapOair deal was found by Cheapflights users on 6/17. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/174:57 pm
ATW
- DEN
Nonstop2h 31m
Allegiant Air
Fri 7/247:18 pm
DEN
- ATW
Nonstop2h 21m
Allegiant Air
Deal found 6/17![Allegiant Air logo]()
$239
This Cheapflightsfares deal was found by Cheapflights users on 6/18. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/174:57 pm
ATW
- DEN
Nonstop2h 31m
Allegiant Air
Mon 7/207:18 pm
DEN
- ATW
Nonstop2h 21m
Allegiant Air
Deal found 6/18![Allegiant Air logo]()
$241
This Mytrip deal was found by Cheapflights users on 6/18. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/244:57 pm
ATW
- DEN
Nonstop2h 31m
Allegiant Air
Mon 7/277:18 pm
DEN
- ATW
Nonstop2h 21m
Allegiant Air
Deal found 6/18![Allegiant Air logo]()
$237
This Cheapflightsfares deal was found by Cheapflights users on 6/16. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/274:57 pm
ATW
- DEN
Nonstop2h 31m
Allegiant Air
Fri 8/77:39 pm
DEN
- ATW
Nonstop2h 21m
Allegiant Air
Deal found 6/16![Allegiant Air logo]()
$253
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 June 19, 2026.
Search for one-way flight options from Oshkosh to Denver. Find affordable one-way fares based on user searches. Data last updated June 19, 2026.
This Super.com deal was found by Cheapflights users on 6/15. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/264:58 pm
ATW
- DEN
Nonstop2h 41m
Allegiant Air
Deal found 6/15![Allegiant Air logo]()
$82
This CheapOair deal was found by Cheapflights users on 6/14. 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 CheapOair 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
Allegiant Air
Deal found 6/14![Allegiant Air logo]()
$99
This CheapOair deal was found by Cheapflights users on 6/18. 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 8/248:45 am
ATW
- DEN
Nonstop2h 34m
Allegiant Air
Deal found 6/18![Allegiant Air logo]()
$107
This CheapOair deal was found by Cheapflights users on 6/14. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/294:58 pm
ATW
- DEN
Nonstop2h 41m
Allegiant Air
Deal found 6/14![Allegiant Air logo]()
$115
This Kiwi.com deal was found by Cheapflights users on 6/18. 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.
Fri 7/174:57 pm
ATW
- DEN
Nonstop2h 31m
Allegiant Air
Deal found 6/18![Allegiant Air logo]()
$125
This Kiwi.com deal was found by Cheapflights users on 6/14. 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 7/244:57 pm
ATW
- DEN
Nonstop2h 31m
Allegiant Air
Deal found 6/14![Allegiant Air logo]()
$129
This Super.com deal was found by Cheapflights users on 6/14. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/224:58 pm
ATW
- DEN
Nonstop2h 41m
Allegiant Air
Deal found 6/14![Allegiant Air logo]()
$131
This Cheapflightsfares deal was found by Cheapflights users on 6/14. 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 Cheapflightsfares 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
Deal found 6/14![Allegiant Air logo]()
$135
This Kiwi.com deal was found by Cheapflights users on 6/14. 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 7/204:57 pm
ATW
- DEN
Nonstop2h 31m
Allegiant Air
Deal found 6/14![Allegiant Air logo]()
$139
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 June 19, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $234 (Kiwi.com) |
One-way from | $82 (Super.com) |
Popular in | March |
Cheapest in | September |
Average price | $309 |
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 June 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
Fri 8/7
5:29 pm-11:48 pm
1 stop7h 19m
Denver Intl
Wed 8/12
5:32 pm-8:54 pm
Nonstop2h 22m
$279
Quickest round-trip
AppletonDenver
ATW - DEN
ATWDEN
Appleton Intl
Tue 8/25
8:45 am-10:30 am
Nonstop2h 45m
Denver Intl
Sat 8/29
5:32 pm-8:54 pm
Nonstop2h 22m
$349
AppletonDenver
ATW - DEN
ATWDEN
Appleton Intl
Fri 8/21
5:00 pm-11:53 pm
1 stop7h 53m
Denver Intl
Mon 8/24
5:32 pm-8:54 pm
Nonstop2h 22m
$351
AppletonDenver
ATW - DEN
ATWDEN
Appleton Intl
Sat 10/3
2:41 pm-9:44 pm
1 stop8h 03m
Denver Intl
Tue 10/6
5:46 pm-9:08 pm
Nonstop2h 22m
$359
AppletonDenver
ATW - DEN
ATWDEN
Appleton Intl
Sat 8/15
5:00 pm-11:53 pm
1 stop7h 53m
Denver Intl
Sat 8/22
5:32 pm-8:54 pm
Nonstop2h 22m
$359
AppletonDenver
ATW - DEN
ATWDEN
Appleton Intl
Tue 6/30
4:16 pm-8:02 pm
1 stop4h 46m
Denver Intl
Mon 7/6
6:00 am-10:47 am
1 stop3h 47m
$364
AppletonDenver
ATW - DEN
ATWDEN
Appleton Intl
Tue 7/14
8:45 am-10:31 am
Nonstop2h 46m
Denver Intl
Tue 7/21
5:40 pm-9:04 pm
Nonstop2h 24m
$373
AppletonDenver
ATW - DEN
ATWDEN
Appleton Intl
Sat 8/22
11:00 am-3:23 pm
1 stop5h 23m
Denver Intl
Mon 8/24
9:29 am-10:56 pm
2 stops12h 27m
$395
AppletonDenver
ATW - DEN
ATWDEN
Appleton Intl
Thu 7/2
6:00 am-12:10 pm
1 stop7h 10m
Denver Intl
Sun 7/5
6:00 am-10:47 am
1 stop3h 47m
$399
AppletonDenver
ATW - DEN
ATWDEN
Appleton Intl
Sun 7/19
8:32 am-10:18 am
Nonstop2h 46m
Denver Intl
Sat 7/25
4:59 pm-11:23 pm
1 stop5h 24m
$409
Showing 1-10 of 23 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 June 19, 2026.
It’s typically best to fly out from Oshkosh to Denver in the evening. Doing so could potentially save you 44% 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 June 19, 2026.
The most flights from OS9 to DEN are scheduled on a Monday (9 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 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 June 13, 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. Sunday 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 June 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.
Food
7.2
Comfort
7.8
Overall
7.8
Entertainment
7.8
Boarding
8.1
Crew
8.5
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Food
7.2
Comfort
7.8
Overall
7.8
Entertainment
7.8
Boarding
8.1
Crew
8.5
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Food
7.2
Comfort
7.8
Overall
7.8
Entertainment
7.8
Boarding
8.1
Crew
8.5
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Food
7.2
Comfort
7.8
Overall
7.8
Entertainment
7.8
Boarding
8.1
Crew
8.5
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Food
7.2
Comfort
7.8
Overall
7.8
Entertainment
7.8
Boarding
8.1
Crew
8.5
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
Centennial
Westminster
Lakewood
Broomfield
Golden
Greeley
Fort Morgan
Lone Tree
Wheat Ridge
Silverthorne
Central City
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 June 19, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$64 | Average$182 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$103 | Average$192 | FlexibilityNo cancel fee | On-time88% | |
| Cheapest$152 | Average$340 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$181 | Average$374 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$192 | Average$336 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$202 | Average$417 | FlexibilityNo cancel fee | On-time63% |