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Good to Know: Flights to ONT
Useful information for finding cheap flights to Ontario International and booking your next trip
Cheapest Round Trip Flight
$768
United Airlines• 1 stop • 14h 11mMar 16 – Mar 21
The cheapest round trip flight from Logan International to Ontario International is currently $768
Cheapest One way Flight
$453
Delta Airlines• 1 stop• 10h 7mMar 14
The cheapest one way flight from Dallas Fort Worth International to Ontario International is currently $453
Cheapest Direct Flight
$482
Delta Airlines• nonstop• 4h 3mMar 19
The cheapest nonstop flight from Seattle Tacoma International to Ontario International is currently $482
Fastest Flight
3h 55m
The fastest nonstop flight from Seattle Tacoma International to Ontario International takes 3h 55m
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.
Mar 16 - Mar 21, Economy
Boston → Ontario
14h 11m
2:59 PM - 8:50 PM • 1 stop
Boston → Ontario
8h 46m
8:15 AM - 4:41 PM • nonstop
United Airlines
Mar 16 - Mar 21, Economy
Boston → Ontario
19h 18m
12:26 PM - 9:24 PM • 1 stop
Boston → Ontario
13h 49m
10:36 PM - 10:05 AM • 1 stop
American Airlines
Mar 16 - Mar 21, Economy
Boston → Ontario
16h 52m
2:12 PM - 9:24 PM • 1 stop
Boston → Ontario
13h 34m
6:00 AM - 5:14 PM • 1 stop
American Airlines
Mar 16 - Mar 21, Economy
Boston → Ontario
14h 13m
6:06 PM - 11:59 PM • 1 stop
Boston → Ontario
13h 34m
6:00 AM - 5:14 PM • 1 stop
American Airlines
Mar 16 - Mar 21, Economy
Boston → Ontario
15h 26m
4:04 PM - 10:30 PM • 1 stop
Boston → Ontario
13h 49m
10:36 PM - 10:05 AM • 1 stop
American 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.
Mar 19 - Mar 22, Economy
Seattle → Ontario
4h 3m
2:30 PM - 5:13 PM • nonstop
Seattle → Ontario
4h 15m
6:00 AM - 8:55 AM • nonstop
Delta Airlines
Mar 19 - Mar 22, Economy
Seattle → Ontario
4h 4m
7:50 PM - 10:34 PM • nonstop
Seattle → Ontario
4h 15m
6:00 AM - 8:55 AM • nonstop
Delta Airlines
Mar 19 - Mar 22, Economy
Seattle → Ontario
3h 55m
9:24 PM - 11:59 PM • nonstop
Seattle → Ontario
4h 10m
10:33 AM - 1:23 PM • nonstop
Hawaiian Airlines
Mar 19 - Mar 22, Economy
Seattle → Ontario
3h 56m
3:37 PM - 6:13 PM • nonstop
Seattle → Ontario
4h 10m
10:33 AM - 1:23 PM • nonstop
Hawaiian Airlines
Mar 19 - Mar 22, Economy
Seattle → Ontario
3h 56m
3:37 PM - 6:13 PM • nonstop
Seattle → Ontario
4h 9m
7:08 PM - 9:57 PM • nonstop
Alaska 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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