Buenos Aires to Ontario flights
Routavio compares airline fares from several flight booking sites. The lowest one-way fare it found for Buenos Aires to Ontario is €510 with Sky Airline (checked on 18 Oct 2026).
Your next trip, last seen at €510
Lowest observedSky Airline · 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
- €510, departing 5 Nov 2026 (Last checked: 18 Oct 2026)One-way fareCheck live prices for this route
- Airlines seen
- Aerolineas Argentinas, Arajet, Avianca, Copa Airlines, Frontier Airlines, JetSmart, LATAM Airlines, Sky Airline, United Airlines, Volaris (10)
- Typical journey time
- 34h 20m
About this route
Explore the fares we observed from Buenos Aires to Ontario. Prices move often, so pick your dates to see the latest options.
- Route distance
- 9,813 km
- Typical journey time
- 34h 20m
- Seen on fares with a connection
- Arajet, Sky Airline, LATAM Airlines, Copa Airlines, Frontier Airlines, JetSmart, United Airlines, Aerolineas Argentinas, Avianca, Volaris (10)
- Alternative airports
- AEP
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
- Aeroparque Jorge Newbery (AEP) → Buenos Aires, city gazetteer reference point (-34.6084, -58.3732): ≈ 7 km.
- Ezeiza International Airport - Ministro Pistarini (EZE) → Buenos Aires, city gazetteer reference point (-34.6084, -58.3732): ≈ 28 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 Buenos Aires to Ontario: Sky Airline, from €510 (checked 18 Oct 2026).
| Airline | Lowest fare | Priced days |
|---|---|---|
| Sky Airline | €510Nov 5, 2026 | 17 |
| Frontier Airlines | €514Nov 13, 2026 | 5 |
| Arajet | €517Nov 21, 2026 | 9 |
| Copa Airlines | €526Dec 3, 2026 | 12 |
| LATAM Airlines | €538Nov 16, 2026 | 10 |
| JetSmart | €546Dec 4, 2026 | 9 |
| United Airlines | €818Jan 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 Buenos Aires to Ontario?
The lowest fare Routavio has observed is €510, 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 Buenos Aires to Ontario?
In our observations November 2026 is the cheapest month so far, at €510.
Are there direct flights from Buenos Aires to Ontario?
Our data holds no non-stop flight from Buenos Aires to Ontario. The fares on this page include at least one stop.
Which airlines fly from Buenos Aires to Ontario?
Routavio has seen these carriers on the route: Aerolineas Argentinas, Arajet, Avianca, Copa Airlines, Frontier Airlines, JetSmart, LATAM Airlines, Sky Airline, United Airlines, Volaris (10).
How long does the flight from Buenos Aires to Ontario take?
Across the 77 fares Routavio observed, the average journey time is 39h 31m, including any stops. Individual departures vary; the fastest observed flight is listed in the route facts above.
How many of the observed Buenos Aires to Ontario fares were non-stop?
None of the 80 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 Buenos Aires to Ontario?
Cheapest airline from Buenos Aires to Ontario: Sky Airline, from €510 (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.