Effective May 1, we’re updating our Privacy and Cookie Policies. OK

Menu
Menu
New York

Cheap flights from Ontario (ONT) to USA

Know your dates, get live prices in seconds:

From
To
Depart
Return
Any month
Compare vs. Cheapflights |
From
To
Depart
Depart
Time
Anytime
From
To
Depart
Depart
Time
Anytime
From
To
Depart
Depart
Time
Anytime
From
To
Depart
Depart
Time
Anytime
From
To
Depart
Depart
Time
Anytime
From
To
Depart
Depart
Time
Anytime

We work with more than 300 partners to bring you better travel deals

ONT
Ontario
US0
USA
 Add details to search for flights

Cheap flights from Ontario to USA in April 2019

The best prices found for ONT to USA flights for April
29 Apr - 4 May
$127pp
ONT
Ontario
Frontier
Non-Stop
DEN
USA
DEN
USA
Frontier
Non-Stop
ONT
Ontario
27 Apr - 29 Apr
$161pp
ONT
Ontario
Delta
 
1 STOP
DEN
USA
DEN
USA
Delta
Non-Stop
ONT
Ontario
26 Apr - 12 May
$177pp
ONT
Ontario
Frontier
Non-Stop
MCO
USA
MCO
USA
Frontier
Non-Stop
ONT
Ontario

Ontario to USA 2019 flight deals

Cheap flights to USA from Ontario found for this year
18 Jun - 19 Jun
$125pp
ONT
Ontario
United Airlines
Non-Stop
SFO
USA
SFO
USA
United Airlines
Non-Stop
ONT
Ontario
19 Jun - 23 Jun
$125pp
ONT
Ontario
United Airlines
Non-Stop
SFO
USA
SFO
USA
United Airlines
Non-Stop
ONT
Ontario
22 Jun - 23 Jun
$125pp
ONT
Ontario
United Airlines
Non-Stop
SFO
USA
SFO
USA
United Airlines
Non-Stop
ONT
Ontario

Non-stop flights to USA from Ontario

Save time with Ontario to USA direct flight deals
18 Jun - 19 Jun
$125pp
ONT
Ontario
United Airlines
Non-Stop
SFO
USA
SFO
USA
United Airlines
Non-Stop
ONT
Ontario
19 Jun - 23 Jun
$125pp
ONT
Ontario
United Airlines
Non-Stop
SFO
USA
SFO
USA
United Airlines
Non-Stop
ONT
Ontario
22 Jun - 23 Jun
$125pp
ONT
Ontario
United Airlines
Non-Stop
SFO
USA
SFO
USA
United Airlines
Non-Stop
ONT
Ontario

Last minute flights from Ontario to USA

Late deals on round-trip flights to USA from Ontario, departing today and this week
21 Apr - 25 Apr
$157pp
ONT
Ontario
Frontier
Non-Stop
MCO
USA
MCO
USA
Frontier
Non-Stop
ONT
Ontario
23 Apr - 27 Apr
$161pp
ONT
Ontario
Frontier
Non-Stop
DEN
USA
DEN
USA
Frontier
 
1 STOP
ONT
Ontario
27 Apr - 29 Apr
$161pp
ONT
Ontario
Delta
 
1 STOP
DEN
USA
DEN
USA
Delta
Non-Stop
ONT
Ontario

Destination information for USA

Things to know before you go. Useful info for your trip from Ontario to USA
Flight duration
2h 09m

Airports servicing Ontario