Your next trip, last seen at €93
Below averageAllegiant Air · Non-stop · One wayWhen to fly
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The lowest fare we observed for each month. Open a month to see its days, then pick your outbound and return. A day with no price is one we will search for you.
One-way fare
- Lowest observed
- €93, departing 30 Oct 2026 (Last checked: 15 Oct 2026)One-way fareCheck live prices for this route
- Airlines seen
- Allegiant Air, American Airlines, Frontier Airlines, United Airlines
- Typical journey time
- 18h 59m
About this route
Explore the fares we observed from Denver to Appleton. Prices move often, so pick your dates to see the latest options.
- Route distance
- 1,455 km
- Typical journey time
- 18h 59m
- Seen on fares with a connection
- Frontier Airlines, Allegiant Air, United Airlines
- Alternative airports
- APA
Route-level information; individual journeys vary.
We have not observed non-stop service on this route; the fares shown include at least one stop.
A clearer picture of your fare
Non-stop airlines seen on this route
| Airline | Non-stop days / priced days | Fastest non-stop |
|---|---|---|
| United Airlines | 3 / 78 |
Departure days with a non-stop fare checked in the last 14 days. A carrier listed here had a non-stop fare on at least 3 days; schedules may differ.
Airport to city: straight-line distance
- Denver International Airport (DEN) → Denver, city gazetteer reference point (39.7392, -104.9847): ≈ 30 km.
- Appleton International Airport (ATW) → Appleton, city gazetteer reference point (44.2619, -88.4154): ≈ 8 km.
Approximate distances calculated from coordinates, not road distances or travel times. These airports serve the city; they are not confirmed endpoints of an offer.
Lowest one-way fare we saw per airline
Cheapest airline from Denver to Appleton: Allegiant Air, from €93 (checked 15 Oct 2026).
| Airline | Lowest fare | Priced days |
|---|---|---|
| Allegiant Air | €93Oct 30, 2026 | 10 |
| Frontier Airlines | €104Dec 3, 2026 | 58 |
| United Airlines | €303Dec 29, 2026 | 10 |
One-way fares checked in the last 14 days. An airline listed here had a fare on at least 3 departure days. Each figure is the lowest we saw, not a guaranteed fare. Connecting itineraries are included; the date is the departure day of that fare.
Frequently asked
How much is a flight from Denver to Appleton?
The lowest fare Routavio has observed is €93, found on 15 Oct 2026. Prices move, so read it as a floor rather than a quote.
When is the cheapest month to fly from Denver to Appleton?
In our observations October 2026 is the cheapest month so far, at €93.
Are there direct flights from Denver to Appleton?
Our data holds no non-stop flight from Denver to Appleton. The fares on this page include at least one stop.
Which airlines fly from Denver to Appleton?
Routavio has seen these carriers on the route: Allegiant Air, American Airlines, Frontier Airlines, United Airlines.
How long does the flight from Denver to Appleton take?
Across the 84 fares Routavio observed, the average journey time is 20h 05m, including any stops. Individual departures vary; the fastest observed flight is listed in the route facts above.
Which airlines had non-stop offers on at least 3 departure dates from Denver to Appleton?
For Denver to Appleton, examples of observed one-way non-stop offers checked within the last 14 days: United Airlines (3). Each number counts distinct departure dates, not weekly flights; check current availability in search.
Which airline has the lowest fare from Denver to Appleton?
Cheapest airline from Denver to Appleton: Allegiant Air, from €93 (checked 15 Oct 2026).
How observed prices work, what "No data" means and what a fare includes: Read the flight price guide
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Recently observed fares. Prices may change.
Last checked: 29 Oct 2026