Your next trip, last seen at €310
Lowest observedUnited Airlines · 2 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
- €310, departing 16 Jan 2027 (Last checked: 18 Oct 2026)One-way fareCheck live prices for this route
- Airlines seen
- Aer Lingus, Aeromexico, Air Canada, Air France, Alaska Airlines, Eurowings, Frontier Airlines, Icelandair, ITA Airways, JetBlue, KLM, Ryanair, Ryanair UK, TAP Air Portugal, United Airlines (15)
- Typical journey time
- 37h 28m
About this route
Explore the fares we observed from Ontario to Cologne. Prices move often, so pick your dates to see the latest options.
- Route distance
- 9,124 km
- Typical journey time
- 37h 28m
- Seen on fares with a connection
- Frontier Airlines, Alaska Airlines, United Airlines, Eurowings, Ryanair, Icelandair, KLM, Air Canada, Air France, ITA Airways, TAP Air Portugal (11)
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
- Ontario International Airport (ONT) → Ontario, city gazetteer reference point (34.0500, -117.6400): ≈ 4 km.
- Cologne/Bonn Airport (CGN) → Cologne, city gazetteer reference point (50.9407, 6.9599): ≈ 15 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 Ontario to Cologne: United Airlines, from €310 (checked 18 Oct 2026).
| Airline | Lowest fare | Priced days |
|---|---|---|
| United Airlines | €310Jan 16, 2027 | 12 |
| Frontier Airlines | €395Dec 9, 2026 | 23 |
| Alaska Airlines | €407Jan 12, 2027 | 19 |
| Icelandair | €462Dec 30, 2026 | 3 |
| Ryanair | €494Nov 14, 2026 | 3 |
| Eurowings | €582Jan 11, 2027 | 3 |
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 Ontario to Cologne?
The lowest fare Routavio has observed is €310, found on 18 Oct 2026. Prices move, so read it as a floor rather than a quote.
When is the cheapest month to fly from Ontario to Cologne?
In our observations January 2027 is the cheapest month so far, at €310.
Are there direct flights from Ontario to Cologne?
Our data holds no non-stop flight from Ontario to Cologne. The fares on this page include at least one stop.
Which airlines fly from Ontario to Cologne?
Routavio has seen these carriers on the route: Aer Lingus, Aeromexico, Air Canada, Air France, Alaska Airlines, Eurowings, Frontier Airlines, Icelandair, ITA Airways, JetBlue, KLM, Ryanair, Ryanair UK, TAP Air Portugal, United Airlines (15).
How long does the flight from Ontario to Cologne take?
Across the 71 fares Routavio observed, the average journey time is 37h 23m, including any stops. Individual departures vary; the fastest observed flight is listed in the route facts above.
How many of the observed Ontario to Cologne fares were non-stop?
None of the 71 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 Ontario to Cologne?
Cheapest airline from Ontario to Cologne: United Airlines, from €310 (checked 18 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.