Departing ONT

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Ontario International Airport · Ontario, United States

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About Flights from Ontario International Airport (ONT)

Ontario International Airport (ONT) serves Ontario, United States. 14 destinations reachable from ONT in our booking network.

You can book flights from ONT through Aviafares at the same published fares you'd see on any airline's own site. Our US booking team also pulls unpublished consolidator rates on premium cabins, especially useful for long-haul international departures where negotiated rates most often beat public pricing.

Top destinations from ONT

Highest-frequency routes from ONT by airline coverage: DEN (Denver), GDL (Guadalajara), PHX (Phoenix), DFW (Dallas-Fort Worth). Full list below.

24/7 booking assistance

Changes, cancellations, and refunds on any ticket out of ONT are handled by our US-based booking team around the clock. For US-touching cancellations, DOT rules entitle you to a full refund on any fare. Call the number at the top of this page or request a callback.

Top destinations from ONT

Airports with the most scheduled outbound service from ONT, ranked by airline coverage.

Frequently asked questions

Which airlines fly to ONT?
The "Serving airlines" section below lists every active carrier operating scheduled service to ONT, ranked by route count. For alliance partners and codeshare flights, the list reflects the operating carrier, not the marketing airline.
Does ONT have a Global Entry facility?
Most major US international arrival airports operate Global Entry kiosks for enrolled travelers. For specific terminal and hours, check the CBP website, we link to the relevant ONT CBP page from the Booking Support section of our site.
How do I get from Ontario to Ontario's downtown?
Depends on the city. Most major US airports have a dedicated rail line or express bus; others rely on taxi / rideshare. Our booking agents can include ground-transport guidance in your confirmation email on request.

Related pages

Questions about flying out of ONT?

Our 24/7 US booking team knows fare rules, change policies, and unpublished consolidator rates on ONT departures cold, including 24 tracked airline-route combinations from this airport.

(878) 444-9861