Austin to Ontario flights

Routavio compares airline fares from several flight booking sites. Search Austin to Ontario to see the lowest price before you book.

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Lowest fare seen

€83Seen on 7 Oct 2026

Last checked

29 Oct 2026

Observed fares. Prices may change.

Your next trip, last seen at €83

Lowest observed

4 Nov 2026

One way

Cheapest observed day · Last checked: 7 Oct 2026

When 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

One-way fare · No data: click and we will search

Airlines seen: Alaska Airlines, American Airlines, Delta Air Lines, Frontier Airlines, Southwest Airlines, United Airlines
Reported fastest flight: 3h 05m
Non-stop: Yes

Short answer

Routavio has seen Alaska Airlines fares from Austin to Ontario. These are prices Routavio's searches returned on the dates shown, not quotes; run a live search for today's fare. Lowest fare seen: €83 on 7 Oct 2026.

About this route

Explore the fares we observed from Austin to Ontario. Prices move often, so pick your dates to see the latest options.

Route distance: 1,916 km
Reported fastest flight: 3h 05m
Seen on fares with a connection: Frontier Airlines, Southwest Airlines, American Airlines, United Airlines

Route-level information; individual journeys vary.

A clearer picture of your fare

Observed, not guaranteed

Every price is a fare we actually saw, and it may change at any time.

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The price is final on the provider's site, where your booking is completed.

How our prices work

Airport to city: straight-line distance

Austin Bergstrom International Airport (AUS) → Austin, city gazetteer reference point (30.2672, -97.7431): ≈ 11 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.

Frequently asked

How much was a flight from Austin to Ontario?

A fare of €83 was seen on 7 Oct 2026. Fares change, so search your dates for the current price.

Which airlines fly from Austin to Ontario?

Routavio has seen these carriers on the route: Alaska Airlines, American Airlines, Delta Air Lines, Frontier Airlines, Southwest Airlines, United Airlines.

How observed prices work, what "No data" means and what a fare includes: Read the flight price guide