Lowest Prices
Find the lowest ONT airfares by comparing hundreds of airlines and agencies.
Good to Know: Flights to ONT
Useful information for finding cheap flights to Ontario International and booking your next trip
Cheapest Round Trip Flight
$558
United Airlines• 1 stop • 10h 24mNov 20 – Nov 27
The cheapest round trip flight from Arcata to Ontario International is currently $558
Cheapest One way Flight
$211
American Airlines• 1 stop• 9h 15mOct 26
The cheapest one way flight from Wichita Mid Continent to Ontario International is currently $211
Cheapest Direct Flight
$101
Alaska Airlines• nonstop• 2h 9mNov 19
The cheapest nonstop flight from Norman Y. Mineta San Jose International to Ontario International is currently $101
Fastest Flight
1h 45m
The fastest nonstop flight from Norman Y. Mineta San Jose International to Ontario International takes 1h 45m
Best Flight Deals to Ontario
Identify the most efficient round-trip flights to Ontario. We present options balancing cost and convenience for your return journey.
Nov 20 - Nov 27, Economy
Arcata/Eureka → Ontario
10h 24m
- • 1 stop
Arcata/Eureka → Ontario
3h 27m
- • nonstop
United Airlines
Nov 20 - Nov 27, Economy
Arcata/Eureka → Ontario
7h 9m
- • 1 stop
Arcata/Eureka → Ontario
3h 27m
- • nonstop
United Airlines
Nov 20 - Nov 27, Economy
Arcata/Eureka → Ontario
40h 38m
- • 1 stop
Arcata/Eureka → Ontario
7h 3m
- • 1 stop
Alaska Airlines
Nov 20 - Nov 27, Economy
Arcata/Eureka → Ontario
5h 47m
- • 1 stop
Arcata/Eureka → Ontario
7h 31m
- • 1 stop
United Airlines
Oct 31 - Dec 02, Economy
Lima → Ontario
23h 46m
11:40 PM - 11:06 AM • 1 stop
Lima → Ontario
22h 20m
12:20 PM - 5:00 AM • 1 stop
LATAM Airlines
For travel requiring no set return, access available one-way flights to Ontario (ONT). These options support extended stays or open-ended plans.
Need to travel to Ontario soon? View current last-minute flight options to ONT for spontaneous or pressing plans.
Maximize your time in Ontario, not in transit. Discover non-stop direct flights to ONT for the quickest, most straightforward journey to the Strip.
Nov 19 - Nov 24, Economy
San Jose → Ontario
2h 9m
6:00 AM - 7:29 AM • nonstop
San Jose → Ontario
2h 7m
7:20 AM - 8:47 AM • nonstop
Alaska Airlines
Nov 19 - Nov 24, Economy
San Jose → Ontario
2h 8m
6:40 AM - 8:08 AM • nonstop
San Jose → Ontario
2h 7m
7:20 AM - 8:47 AM • nonstop
Alaska Airlines
Nov 19 - Nov 24, Economy
San Jose → Ontario
2h 8m
12:00 PM - 1:28 PM • nonstop
San Jose → Ontario
2h 7m
7:20 AM - 8:47 AM • nonstop
Alaska Airlines
Nov 19 - Nov 24, Economy
San Jose → Ontario
2h 10m
2:40 PM - 4:10 PM • nonstop
San Jose → Ontario
1h 50m
6:10 AM - 7:20 AM • nonstop
Southwest Airlines
Nov 19 - Nov 24, Economy
San Jose → Ontario
2h
11:55 AM - 1:15 PM • nonstop
San Jose → Ontario
1h 55m
4:40 PM - 5:55 PM • nonstop
Southwest Airlines
Destination Airport Information
| IATA Code | ONT |
| Name | Ontario International |
| City | Ontario |
| Country | US |
| Latitude | 34.055999755859375 |
| Longitude | -117.60099792480469 |
Popular Airlines
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