$64 Find Cheap Flights from Denver to Oshkosh

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Denver to Oshkosh departing on 6/1. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
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Cheap Flight Deals from Denver to Oshkosh (DEN-ATW)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Denver to Oshkosh that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Recent round-trip flight deals from Denver to Oshkosh

KAYAK's recommended round-trip deals from the most popular airlines that fly from Denver to Oshkosh.
Discover the best prices for you by selecting your travel dates on KAYAK.
Allegiant Air Logo
8:24 pm - 11:38 pmDEN-ATW
2h 14mnonstop
Allegiant Air Logo
1:05 pm - 2:39 pmATW-DEN
2h 34mnonstop
$126Allegiant Air
Find Deal
Thu, May 22 - Sun, May 25
Allegiant Air Logo
8:25 pm - 11:38 pmDEN-ATW
2h 13mnonstop
Allegiant Air Logo
1:05 pm - 2:35 pmATW-DEN
2h 30mnonstop
$136Allegiant Air
Find Deal
Thu, Jun 12 - Sun, Jun 29
Allegiant Air Logo
8:24 pm - 11:38 pmDEN-ATW
2h 14mnonstop
Allegiant Air Logo
1:05 pm - 2:39 pmATW-DEN
2h 34mnonstop
$138Allegiant Air
Find Deal
Thu, May 22 - Thu, May 29
Delta Logo
6:00 am - 11:11 amDEN-ATW
4h 11m1 stop
Delta Logo
5:15 pm - 9:12 pmATW-DEN
4h 57m1 stop
$209Delta
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Wed, May 21 - Thu, May 29
United Airlines Logo
5:32 pm - 9:05 pmDEN-ATW
2h 33mnonstop
United Airlines Logo
5:23 pm - 11:30 pmATW-DEN
7h 07m1 stop
$219United Airlines
Find Deal
Sat, May 24 - Fri, May 30
Delta Logo
6:00 am - 11:11 amDEN-ATW
4h 11m1 stop
Delta Logo
5:15 pm - 9:12 pmATW-DEN
4h 57m1 stop
$229Delta
Find Deal
Sat, May 24 - Fri, May 30
American Airlines Logo
10:56 am - 11:34 pmDEN-ATW
11h 38m2 stops
American Airlines Logo
5:40 am - 11:27 amATW-DEN
6h 47m1 stop
$234American Airlines
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Wed, May 28 - Wed, Jun 4
American Airlines Logo
12:16 pm - 11:34 pmDEN-ATW
10h 18m2 stops
American Airlines Logo
4:37 pm - 11:33 pmATW-DEN
7h 56m1 stop
$254American Airlines
Find Deal
Fri, May 16 - Sat, May 17
United Airlines Logo
5:32 pm - 9:05 pmDEN-ATW
2h 33mnonstop
United Airlines Logo
8:40 am - 10:31 amATW-DEN
2h 51mnonstop
$269United Airlines
Find Deal
Sat, May 24 - Thu, May 29
 Logo
10:33 am - 8:15 amDEN-ATW
20h 42m3 stops
 Logo
7:30 am - 5:06 pmATW-DEN
34h 36m2 stops
Thu, Jun 12 - Sun, Jun 29
Useful Info

Good to know

Low seasonMarch
High seasonSeptember
Cheapest flight$64
Best time to beat the crowds but there is an average 11% increase in price.
Most popular time to fly and prices are also 29% lower on average.
Flight from Denver to Appleton

When to book flights from Denver to Oshkosh

Are your dates flexible? Find out the best times to travel from Denver to Oshkosh based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

FAQs for booking flights from Denver to Oshkosh

  • Which airports will I be using when flying from Denver to Oshkosh?

    When flying out of Denver you’ll be using Denver Intl. Oshkosh does not have its own airport so you’ll be flying into nearby Appleton Intl airport, which is 16.1 mi away.

  • How long does a flight from Denver to Oshkosh take?

    Direct flights cover the 880 miles separating Denver and Oshkosh in about 2h 13m.

  • How many flights are there between Denver and Oshkosh?

    1 direct flights run between Denver and Oshkosh on a daily basis. On average, there are about 13 departures each week.

  • What’s the cheapest day of the week to fly between Denver and Oshkosh?

    Consider leaving on a Thursday and avoid Wednesdays if you are looking for the best rates. For your return to Denver, you’ll find the best rates on Sundays and the most expensive ones on Mondays.

  • How does KAYAK find such low prices on flights from Denver to Oshkosh?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Denver to Oshkosh.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Denver to Oshkosh?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Oshkosh from Denver is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Denver to Oshkosh?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Oshkosh with an airline and back to Denver with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Denver to Oshkosh?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Oshkosh from Denver up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • Which airlines provide the cheapest flights from Denver to Oshkosh?

    In the last 72 hours, the cheapest one-way ticket between Denver and Oshkosh found on KAYAK was with Allegiant Air for $64. Allegiant Air offered a round-trip connection from $126 and Delta from $209.

Top tips for finding cheap flights from Denver to Oshkosh

  • There is no airport in Oshkosh. Instead, you’ll be flying into Appleton Intl Airport when flying between Denver and Oshkosh.
  • The cheapest flight from Denver to Oshkosh was found 77 days before departure, on average.
  • Book at least 1 week before departure in order to get a below-average price.
  • High season is considered to be November, December and January. The cheapest month to fly is September.

Top 4 airlines serving Denver to Oshkosh

Need help choosing which airline to fly with from Denver to Oshkosh? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
DeltaOverall score based on 7934 reviews
7.3Food
8.2Boarding
8.5Crew
7.9Entertainment
7.9Comfort
Airline reviews

Delta is my preferred airline. I've traveled with them for years. On time in most cases, good communication, easy to use app. Most planes are pretty nice. I was on a CRJ 700/900 however, which was pretty badly aged inside and needed a refresh. No infotainment, unreliable wifi, best to download before boarding or bring a book. Food choices are really just snacks on this flight, nice variety but about what you'd expect. Great staff and prompt in departure and early arrival too. Overall quite satisfied.

8.0 ExcellentFredrick, Apr 2025GSO - DTW
Read more Delta reviews

Delta is my preferred airline. I've traveled with them for years. On time in most cases, good communication, easy to use app. Most planes are pretty nice. I was on a CRJ 700/900 however, which was pretty badly aged inside and needed a refresh. No infotainment, unreliable wifi, best to download before boarding or bring a book. Food choices are really just snacks on this flight, nice variety but about what you'd expect. Great staff and prompt in departure and early arrival too. Overall quite satisfied.

Crew was friendly Love the entertainment in the seat head rest.

Delta flight was on time, seats were comfortable, and crew was nice.

This had nothing to do with Delta… The flights were on time and flawless. The service was excellent. We purchased seats in (aisle/middle) comfort plus since this was a cross country flight. Unfortunately, the woman seated at the window was 300+ pounds and, as might be expected, covered up about a third of the middle seat also. there was absolutely nothing that Delta could have done about that… I just don’t know what the answer should be. If you purchase a seat, you should should be able to use the entire seat and not just the portion that someone else is not sitting/oozing in. Disappointing…there should be something that could be done….I'm just not sure what solution could be.

Delayed take-off. Very small plane so very scary with lots of bumps during the flight. Would never fly Delta on short flights in small 80 seaters plane again! Felt relieved when landed.

The worst part was I was NOT allowed in the lounge even though I was holding a first class ticket and have a premium American Express card. I have flown Business or First Class with many airlines. Delta is the ONLY one who does not extend this courtesy to anyone except people who hold the very expensive American Express card. As a result, I won’t fly Delta if I have any other choice.

A little bumpy ride . No food was being provided due the the turbulence. That was ok it was a short flight to my standards.

Simply outstanding. Their new lounge for Delta One customers is a cut above the rest.

The Dekta Rep that checked us in was great. She's very personable, pleasant, and can tell she enjoys her job.

The plane was old with small storage areas that had problems closing/latching and not enough storage for everyone, and worn, damaged seats. Service was great but feel a little unsafe on such well used planes.

Electric plugs didn't work. Entertainment system wasn't working

The design of the light switch on the arm rest is ridiculous.

The gate attendant let me walk right by her with a bag too big for the overhead compartment

Overall, it was a good experience. Boarding was good and there was plenty of overhead bin space for everyone’s carryons (even when we boarded toward the end). Only improvement would be to offer trash service more regularly.

David went above and beyond to make our flight the best that it could be

No food service almost missed because of first flight delays

Had a hard time finding my assigned seat. No attendants to assist.

The negative was the wait at the airport coming back. I checked my bags in, an hour before boarding and I get the notification that my flight was delayed. Rather had gotten the notification while I was at the hotel. Then it was delayed 3 x’s. Ugh!

Plane still had screens for watching movies. Good selection too.

There was no air on the plane and it was very hot.

Easiest flights I’ve ever taken. Plane was comfortable without overly crowded seating.

Terrible. Still have not received the refund from them. They sent it to some account that I don't even know. Spoke with costumer service and they are unable to help.

I didn’t like it at all. I miss my second flight because of the delay on Allegiant Air now I m stuck in MCO.

Good, but a bit late on take off after loading. Don't like charging for carry ons!

First time flying with them and will definitely fly again in the future. Crew was so nice and friendly, fought was seamless. They are simple planes, no entertainment, but it’s fine for a short flight or if you have personal devices Rates are competitive, and they did so well with keeping the flight on time after a tropical storm, where other airlines had delays and cancellations.

They boarded passengers that sat in the back of the plane first, making boarding very efficient.

I didn't even take this flight. My plans changed and I couldn't get ahold of customer service and the website kept breaking down during the attempt to change the flight. I wound up taking another airline entirely and eating the cost.

The worst flying experience ever 3 delays. No accommodations. Had to deboard the plane after being delayed.

Posted a 20minute delay but didn’t delay at all. Caused boarding issues and confusion. Also, didn’t release baggage. Took over an hour and 20 minutes to get luggage.

Flight was good, boarding was a breeze, flight attendants were friendly and professional. There was a medical issue with another passenger and the crew handled it in a calm and professional way.

Several delays. Next flight was worse. Did not arrive home until 2am PT

Very helpful ground crew after an earlier flight delay and being rebooked on a different flight.

Everything about the flight was lovely…We left early, arrived early, cabin crew were efficient and helpful. Flight was easy and most pleasant.

First world problems, but still… We were seated in first class and asked for a cocktail on a very short, 50 minute flight. After our drink order was taken, a half hour went by, and we noticed that every other person in the small plane had been served except for us. We got up to ask about it, the drinks finally came, then were taken away three minutes later since the flight was so short. Really strange situation, on the other hand, we were in Utah.

We missed our flight. The boarding pass had the wrong gate and by the time we received the text from Kayak, our flight was already gone. I’ll never use Kayak again and will go direct to the airlines in the future.

Boarding took forever, the plane was cramped and cold, and the seatbelt song came on constantly throughout the red eye flight with a loud pre-recorded message playing each time

Cabin felt crammed Snacks are lame But crew was super efficient getting us out on time despite delay

Took off on time and successfully avoided weather that looked to be a problem along the way

There were five broken seats on the plane. The crew was very rude in telling people they had to get off the plane and get a flight the next day. No call for volunteers, but telling people they had to get off. One woman was flying with her elderly mother and daughter and was told she had to leave or all three had to leave. Fortunately, a volunteer offered to stay. The situation was handled poorly.

The flight to Tokyo AA61 took off about two hours late, but then had to turn back. By that time the crew had to be replaced. Then they kept promising to take off in an hour, then in 3, then switch to the next day.

Everything you need to know for your flight from Denver to Oshkosh

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