Your next trip, last seen at €110
Lowest observedFrontier Airlines · 3 stops · 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
- €110, departing 15 Dec 2026 (Last checked: 20 Oct 2026)One-way fareCheck live prices for this route
- Airlines seen
- Alaska Airlines, Allegiant Air, American Airlines, Breeze Airways, Frontier Airlines, Sun Country Airlines, United Airlines (7)
- Typical journey time
- 20h 12m
About this route
Explore the fares we observed from Cincinnati to Ontario. Prices move often, so pick your dates to see the latest options.
- Route distance
- 2,994 km
- Typical journey time
- 20h 12m
- Seen on fares with a connection
- Frontier Airlines, Allegiant Air, United Airlines, Breeze Airways, Alaska Airlines
- Alternative airports
- LUK
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
If the observed fare for this date drops, we will email you. At most one message a day.
Airport to city: straight-line distance
- Cincinnati Municipal Airport Lunken Field (LUK) → Cincinnati, city gazetteer reference point (39.1031, -84.5120): ≈ 8 km.
- Cincinnati Northern Kentucky International Airport (CVG) → Cincinnati, city gazetteer reference point (39.1031, -84.5120): ≈ 15 km.
- Ontario International Airport (ONT) → Ontario, city gazetteer reference point (34.0500, -117.6400): ≈ 4 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 Cincinnati to Ontario: Frontier Airlines, from €110 (checked 20 Oct 2026).
| Airline | Lowest fare | Priced days |
|---|---|---|
| Frontier Airlines | €110Dec 15, 2026 | 46 |
| Allegiant Air | €127Dec 13, 2026 | 10 |
| Breeze Airways | €136Dec 10, 2026 | 6 |
| Alaska Airlines | €147Nov 14, 2026 | 8 |
| United Airlines | €200Dec 31, 2026 | 8 |
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 Cincinnati to Ontario?
The lowest fare Routavio has observed is €110, found on 20 Oct 2026. Prices move, so read it as a floor rather than a quote.
When is the cheapest month to fly from Cincinnati to Ontario?
In our observations December 2026 is the cheapest month so far, at €110.
Are there direct flights from Cincinnati to Ontario?
Our data holds no non-stop flight from Cincinnati to Ontario. The fares on this page include at least one stop.
Which airlines fly from Cincinnati to Ontario?
Routavio has seen these carriers on the route: Alaska Airlines, Allegiant Air, American Airlines, Breeze Airways, Frontier Airlines, Sun Country Airlines, United Airlines (7).
How long does the flight from Cincinnati to Ontario take?
Across the 79 fares Routavio observed, the average journey time is 22h 46m, including any stops. Individual departures vary; the fastest observed flight is listed in the route facts above.
How many of the observed Cincinnati to Ontario fares were non-stop?
None of the 79 fares we observed was non-stop; every one included at least one stop. That describes our observations, not every flight that operates.
Which airline has the lowest fare from Cincinnati to Ontario?
Cheapest airline from Cincinnati to Ontario: Frontier Airlines, from €110 (checked 20 Oct 2026).
How observed prices work, what "No data" means and what a fare includes: Read the flight price guide · Price and schedule freshness on Routavio
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Recently observed fares. Prices may change.