Airport information
Direct destinations from Ontario International Airport
Review popular direct destinations and continue to the relevant flight search.
- 35
- destinations
- 3
- countries
- 28
- airlines
- 3
- continents
Direct connections we see in this airport’s route network.
Busiest routes from here
From the flight archive, November 2025 to October 2026: the routes with the most flights from here. The number is the count of distinct callsigns per day, as the median over the months.
- PHXPhoenix~9 a day
- DENDenver~8 a day
- DFWDallas-Fort Worth~7 a day
- LASLas Vegas~7 a day
- SEASeattle~7 a day
- HNLHonolulu~5 a day
- OAKOakland~6 a day
- SMFSacramento~6 a day
- SLCSalt Lake City~4 a day
- PDXPortland~4 a day
Flight archive (ADS-B, adsb.lol), counted per route per month by callsign. Not a timetable: we do not see every flight, so this is a floor.
Which direction can you fly?
The heading you leave on, following the shortest path across the globe. Not the direction on a flat map: flights to Los Angeles depart northwest, over Greenland.
How far can you fly nonstop?
The share of direct destinations per distance band. This is about how many places you can reach, not how often they are served.
- 15 · 43%Shortup to 620 mi
- 14 · 40%Medium620 – 1,860 mi
- 5 · 14%Long1,860 – 3,730 mi
- 1 · 3%Very longover 3,730 mi
Where does the network reach?
Direct destinations per continent, and below that the countries you can reach nonstop most often.
- North America33
- Asia1
- Oceania1
Most destinations per country
- United States32
- Mexico2
- Taiwan1
Longest and shortest nonstop connection
Airlines with direct connections
How many of the direct destinations each airline appears on. This is not a flight count and not a market share.
- Southwest Airlines19 destinations
- SkyWest Airlines14 destinations
- Alaska Airlines13 destinations
- American Airlines11 destinations
- Delta Air Lines11 destinations
- Frontier Airlines9 destinations
- United Airlines8 destinations
- Horizon Air6 destinations
- Volaris5 destinations
- JetBlue3 destinations
- Sun Country Airlines3 destinations
- Advanced Air2 destinations
- China Airlines2 destinations
- Envoy Air2 destinations
- Omni Air International2 destinations
- Aeronaves TSM1 destination
- Air Armenia1 destination
- Air Canada1 destination
- Copa Airlines1 destination
- Eastern Airlines1 destination
- GlobalX1 destination
- Hawaiian Airlines1 destination
- Kaiser Air1 destination
- Kalitta Charters1 destination
- MasAir1 destination
- Sierra Pacific Airlines1 destination
- STARLUX Airlines1 destination
- WestJet1 destination
The network in numbers
- Northernmost destination
- Seattle
- Southernmost destination
- Guadalajara
- Average route distance
- 1,122 mi