Ontario to Atlanta flights
Routavio compares airline fares from several flight booking sites. The lowest one-way fare it found for Ontario to Atlanta is €73 with Frontier Airlines (checked on 1 Nov 2026).
Your next trip, last seen at €73
Lowest observedWhen 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
- €73, departing 6 Jan 2027 (Last checked: 1 Nov 2026)One-way fare · Priced departure days checked in the last 14 days: 186Check live prices for this route
- Round trip
- €227, departing 18 Nov 2026, back 25 Nov 2026 (Last checked: 30 Oct 2026)
- Non-stop, one way
- €365, departing 27 Jan 2027 (Last checked: 1 Nov 2026)
- Airlines seen
- Delta Air Lines, Frontier Airlines, Southwest Airlines, United Airlines
- Reported fastest flight
- 4h 02m
- Non-stop
- Yes
About this route
Explore the fares we observed from Ontario to Atlanta. Prices move often, so pick your dates to see the latest options.
- Route distance
- 3,055 km
- Reported fastest flight
- 4h 02m
- Alternative airports
- PDK
Route-level information; individual journeys vary.
Published schedules report non-stop service with Delta Air Lines. Check current timetables.
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.
- Hartsfield Jackson Atlanta International Airport (ATL) → Atlanta, city gazetteer reference point (33.7490, -84.3880): ≈ 13 km.
- DeKalb Peachtree Airport (PDK) → Atlanta, city gazetteer reference point (33.7490, -84.3880): ≈ 16 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 fare by departure month
Cheapest month from Ontario to Atlanta: January 2027, from €73 (checked 1 Nov 2026).
| Month | Lowest fare | Priced days |
|---|---|---|
| November 2026 | €114 | 9 |
| December 2026 | €78 | 31 |
| January 2027 | €73 | 31 |
| February 2027 | €73 | 28 |
| March 2027 | €110 | 31 |
| April 2027 | €201 | 30 |
| May 2027 | €236 | 26 |
Lowest fare by day of the week
Cheapest day of the week from Ontario to Atlanta: Tuesday, from €73 (checked 1 Nov 2026).
| Day | Lowest fare | Priced days |
|---|---|---|
| Monday | €79 | 27 |
| Tuesday | €73 | 27 |
| Wednesday | €73 | 27 |
| Thursday | €110 | 26 |
| Friday | €83 | 26 |
| Saturday | €73 | 26 |
| Sunday | €115 | 27 |
One-way fares checked in the last 14 days. Each figure is the lowest priced departure day we saw, not a guaranteed fare.
Lowest fare by days before departure
Lowest fare from Ontario to Atlanta by days until departure (61 days or more): €73 (checked 1 Nov 2026).
| Days before departure | Lowest fare | Priced days |
|---|---|---|
| 8 to 30 days | €78 | 12 |
| 31 to 60 days | €78 | 30 |
| 61 days or more | €73 | 144 |
One-way fares checked in the last 14 days. Each figure is the lowest stored fare for that distance to departure, not a price forecast.
Fares for different departure dates, checked now; not a guide to when to book.
Lowest one-way fare we saw per airline
Cheapest airline from Ontario to Atlanta: Frontier Airlines, from €73 (checked 1 Nov 2026).
| Airline | Lowest fare | Priced days |
|---|---|---|
| Frontier Airlines | €73Jan 6, 2027 | 6 |
| United Airlines | €149Jan 6, 2027 | 6 |
| Southwest Airlines | €154Jan 26, 2027 | 6 |
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 Atlanta?
The lowest fare Routavio has observed is €73, found on 1 Nov 2026. Prices move, so read it as a floor rather than a quote.
When is the cheapest month to fly from Ontario to Atlanta?
Cheapest month from Ontario to Atlanta: January 2027, from €73 (checked 1 Nov 2026).
Are there direct flights from Ontario to Atlanta?
Yes. Published schedules report non-stop flights on this route with Delta Air Lines.
Which airlines fly from Ontario to Atlanta?
Routavio has seen these carriers on the route: Delta Air Lines, Frontier Airlines, Southwest Airlines, United Airlines.
How long does the flight from Ontario to Atlanta take?
Across the 24 fares Routavio observed, the average journey time is 9h 40m, including any stops. Individual departures vary; the fastest observed flight is listed in the route facts above.
How much is a round trip from Ontario to Atlanta?
Cheapest round trip: €227, departing 18 Nov 2026, back 25 Nov 2026 (checked 30 Oct 2026).
How much is a non-stop flight from Ontario to Atlanta?
Cheapest non-stop one-way fare: €365, departing 27 Jan 2027 (checked 1 Nov 2026).
Which day of the week is cheapest from Ontario to Atlanta?
Cheapest day of the week from Ontario to Atlanta: Tuesday, from €73 (checked 1 Nov 2026).
Which airline has the lowest fare from Ontario to Atlanta?
Cheapest airline from Ontario to Atlanta: Frontier Airlines, from €73 (checked 1 Nov 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.