Airport route guide

Upgrade & Award Space from Ontario (ONT)

From Ontario International Airport (ONT) in US, Southwest Airlines, Frontier Airlines, and Alaska Airlines, Inc. fly nonstop to 31 destinations. It's enough volume to carry real upgrade and award inventory, though the best seats to Seattle tend to go quickly. 2LNR monitors confirmed space on each Ontario route so you can act while it's still available.

Data current as of July 21, 2026, refreshed on an ongoing basis as new schedules and seats are confirmed.

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Nonstop destinations

30+

Airlines in award search

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Confirmed upgrade & award space on every ONT route

2LNR tracks confirmed upgrade and award availability on American, Delta, and Alaska and across 30 airlines, segment by segment, date by date. Pick any Ontario destination below to open a calendar of departures with real availability, or watch a route and get alerted when space opens.

See real availability

Confirmed upgrade and award seats on each ONT route, checked against live inventory so you know what is open before you book.

Set an alert

Premium inventory turns over fast. Watch a Ontario route and 2LNR notifies you when space appears.

Plan on the map

Explore every ONT nonstop on the interactive route map, with connections and route statistics.

All nonstop destinations from Ontario (ONT)

31 nonstop destinations with active service from Ontario International Airport. Each route links to its confirmed upgrade and award availability.

Explore ONT routes on the interactive map →

Frequently asked questions about Ontario (ONT)

How many nonstop destinations does Ontario International Airport (ONT) serve?

Ontario International Airport has active nonstop service to 31 destinations. The busiest markets from ONT are Seattle, Dallas, and San Francisco. The full list, with live upgrade and award availability for each route, is on this page.

Which airlines fly upgrade-trackable routes from ONT?

Southwest Airlines, Frontier Airlines, and Alaska Airlines, Inc. operate the most tracked routes from Ontario, in that order. 2LNR covers upgrade and award space on more than 30 airlines, so other carriers serving ONT appear on their routes as well.

How do I check upgrade or award availability from ONT?

Pick any destination on this page, such as Seattle, to open a calendar of ONT departures with confirmed upgrade and award space, date by date. You can also set an alert so 2LNR notifies you when space opens on a route you care about.

Does 2LNR track flights from ONT?

Yes. Every active nonstop route from Ontario International Airport is tracked, 31 destinations in total, and what's shown is confirmed availability rather than a forecast. It's free to start.

Never miss ONT upgrade or award space

Track confirmed availability, set alerts, and book with confidence. Free to start, no credit card required.

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