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Flights from Ontario

1 passenger, economy

Flight schedule from Ontario

Compare prices, duration and stops

United Airlines
UA 2363
13:08
Ontario (ONT)
Sat, 12 sep
1h 27min
Direct
14:35
San Francisco (SFO)
Sat, 12 sep
100 £
Frontier Airlines
F9 2232
17:04
Ontario (ONT)
Sat, 12 sep
7h 7min
1 stop
00:11
Denver (DEN)
Sun, 13 sep +1
117 £
Frontier Airlines
F9 2232
17:04
Ontario (ONT)
Sat, 12 sep
1h 14min
Direct
18:18
Las Vegas, McCarran (LAS)
Sat, 12 sep
119 £
Frontier Airlines
F9 2908
18:45
Ontario (ONT)
Sat, 12 sep
5h 44min
1 stop
00:29
Austin, Bergstrom (AUS)
Sun, 13 sep +1
113 £
Frontier Airlines
F9 2908
18:45
Ontario (ONT)
Sat, 12 sep
8h 10min
1 stop
02:55
Houston, George Bush Intercontinental Airport (IAH)
Sun, 13 sep +1
126 £
Southwest Airlines
WN 3076
20:00
Ontario (ONT)
Sat, 12 sep
7h
1 stop
03:00
New York, LaGuardia Airport (LGA)
Sun, 13 sep +1
116 £
American Airlines
AA 2661
20:05
Ontario (ONT)
Sat, 12 sep
7h 35min
1 stop
03:40
New York, Newark Liberty International Airport (EWR)
Sun, 13 sep +1
203 £
United Airlines
UA 2363
13:08
Ontario (ONT)
Sun, 13 sep
1h 27min
Direct
14:35
San Francisco (SFO)
Sun, 13 sep
97 £
Frontier Airlines
F9 2908
18:45
Ontario (ONT)
Sun, 13 sep
7h 55min
1 stop
02:40
Houston, George Bush Intercontinental Airport (IAH)
Mon, 14 sep +1
126 £
Frontier Airlines
F9 2908
18:45
Ontario (ONT)
Sun, 13 sep
34h 24min
2 stops
05:09
Phoenix, Phoenix-Mesa Gateway Airport (AZA)
Tue, 15 sep +1
274 £
Frontier Airlines
F9 1159
19:07
Ontario (ONT)
Sun, 13 sep
25h 4min
1 stop
20:11
Las Vegas, McCarran (LAS)
Mon, 14 sep +1
77 £
Frontier Airlines
F9 1159
19:07
Ontario (ONT)
Sun, 13 sep
9h 19min
1 stop
04:26
Denver (DEN)
Mon, 14 sep +1
116 £
Frontier Airlines
F9 4206
03:24
Ontario (ONT)
Mon, 14 sep
7h 17min
1 stop
10:41
Dallas, Fort Worth (DFW)
Mon, 14 sep
111 £
Frontier Airlines
F9 4206
03:24
Ontario (ONT)
Mon, 14 sep
15h 58min
1 stop
19:22
Phoenix, Sky Harbor (PHX)
Mon, 14 sep
115 £
Frontier Airlines
F9 1500
13:15
Ontario (ONT)
Mon, 14 sep
11h 10min
1 stop
00:25
San Antonio (SAT)
Tue, 15 sep +1
114 £
Southwest Airlines
WN 3453
18:00
Ontario (ONT)
Mon, 14 sep
3h 5min
Direct
21:05
Houston, William P. Hobby (HOU)
Mon, 14 sep
111 £
Frontier Airlines
F9 2908
18:45
Ontario (ONT)
Mon, 14 sep
28h 59min
2 stops
23:44
New York, LaGuardia Airport (LGA)
Tue, 15 sep +1
112 £
Frontier Airlines
F9 2908
18:45
Ontario (ONT)
Mon, 14 sep
7h 55min
1 stop
02:40
Houston, George Bush Intercontinental Airport (IAH)
Tue, 15 sep +1
120 £
Southwest Airlines
WN 239
21:00
Ontario (ONT)
Mon, 14 sep
5h 45min
1 stop
02:45
Houston, William P. Hobby (HOU)
Tue, 15 sep +1
114 £
Frontier Airlines
F9 4206
03:24
Ontario (ONT)
Tue, 15 sep
6h 15min
1 stop
09:39
Orlando, Orlando International Airport (MCO)
Tue, 15 sep
160 £
Frontier Airlines
F9 4206
03:24
Ontario (ONT)
Tue, 15 sep
19h 18min
3 stops
22:42
San Salvador (SAL)
Tue, 15 sep
211 £
American Airlines
AA 1412
13:00
Ontario (ONT)
Tue, 15 sep
8h 4min
1 stop
21:04
New York, LaGuardia Airport (LGA)
Tue, 15 sep
160 £
Frontier Airlines
F9 1500
13:15
Ontario (ONT)
Tue, 15 sep
5h 32min
1 stop
18:47
Dallas, Fort Worth (DFW)
Tue, 15 sep
110 £
United Airlines
UA 1601
16:01
Ontario (ONT)
Tue, 15 sep
1h 29min
Direct
17:30
San Francisco (SFO)
Tue, 15 sep
94 £
Frontier Airlines
F9 2232
17:04
Ontario (ONT)
Tue, 15 sep
6h 21min
1 stop
23:25
Houston, George Bush Intercontinental Airport (IAH)
Tue, 15 sep
125 £
Frontier Airlines
F9 2908
18:45
Ontario (ONT)
Tue, 15 sep
5h 39min
1 stop
00:24
Dallas, Fort Worth (DFW)
Wed, 16 sep +1
111 £
Frontier Airlines
F9 4690
00:31
Ontario (ONT)
Wed, 16 sep
3h 18min
Direct
03:49
Dallas, Fort Worth (DFW)
Wed, 16 sep
119 £
Frontier Airlines
F9 2232
17:04
Ontario (ONT)
Wed, 16 sep
32h 32min
2 stops
01:36
Phoenix, Phoenix-Mesa Gateway Airport (AZA)
Fri, 18 sep +1
258 £
Frontier Airlines
F9 2908
18:45
Ontario (ONT)
Wed, 16 sep
8h 6min
1 stop
02:51
Phoenix, Sky Harbor (PHX)
Thu, 17 sep +1
111 £
Frontier Airlines
F9 4758
21:30
Ontario (ONT)
Wed, 16 sep
1h 10min
Direct
22:40
Las Vegas, McCarran (LAS)
Wed, 16 sep
134 £
Frontier Airlines
F9 1500
13:15
Ontario (ONT)
Thu, 17 sep
8h 53min
1 stop
22:08
Seattle, Tacoma (SEA)
Thu, 17 sep
110 £
Frontier Airlines
F9 2908
18:45
Ontario (ONT)
Thu, 17 sep
22h 45min
1 stop
17:30
Austin, Bergstrom (AUS)
Fri, 18 sep +1
84 £
Frontier Airlines
F9 1159 🔥 Hot deal
19:07
Ontario (ONT)
Thu, 17 sep
1h 36min
Direct
20:43
San Francisco (SFO)
Thu, 17 sep
23 £
Frontier Airlines
F9 1159
19:07
Ontario (ONT)
Thu, 17 sep
4h 11min
1 stop
23:18
Las Vegas, McCarran (LAS)
Thu, 17 sep
73 £
Frontier Airlines
F9 4758
21:30
Ontario (ONT)
Thu, 17 sep
4h 29min
1 stop
01:59
Sacramento, Sacramento International Airport (SMF)
Fri, 18 sep +1
110 £
Frontier Airlines
F9 4758
21:30
Ontario (ONT)
Thu, 17 sep
4h 29min
1 stop
01:59
Sacramento, Sacramento International Airport (SMF)
Fri, 18 sep +1
110 £
Frontier Airlines
F9 4206
03:24
Ontario (ONT)
Fri, 18 sep
7h 17min
1 stop
10:41
Dallas, Fort Worth (DFW)
Fri, 18 sep
110 £
Frontier Airlines
F9 4206
03:24
Ontario (ONT)
Fri, 18 sep
37h 10min
3 stops
16:34
New York, John F. Kennedy International Airport (JFK)
Sat, 19 sep +1
189 £
Frontier Airlines
F9 4206
03:24
Ontario (ONT)
Fri, 18 sep
20h 31min
2 stops
23:55
Seattle, Boeing Field International Airport (BFI)
Fri, 18 sep
313 £
Frontier Airlines
F9 2908
18:45
Ontario (ONT)
Fri, 18 sep
7h 14min
1 stop
01:59
Washington, Ronald Reagan National Airport (DCA)
Sat, 19 sep +1
81 £
Frontier Airlines
F9 2908
18:45
Ontario (ONT)
Fri, 18 sep
5h 44min
1 stop
00:29
Austin, Bergstrom (AUS)
Sat, 19 sep +1
111 £
Frontier Airlines
F9 1159
19:07
Ontario (ONT)
Fri, 18 sep
1h 36min
Direct
20:43
San Francisco (SFO)
Fri, 18 sep
65 £
Frontier Airlines
F9 4758
21:30
Ontario (ONT)
Fri, 18 sep
1h 10min
Direct
22:40
Las Vegas, McCarran (LAS)
Fri, 18 sep
45 £
Eagle Aviation
Y4 2478
02:46
Ontario (ONT)
Sat, 19 sep
17h 23min
1 stop
20:09
Guadalajara (GDL)
Sat, 19 sep
102 £
Frontier Airlines
F9 4206
03:24
Ontario (ONT)
Sat, 19 sep
1h 11min
Direct
04:35
Las Vegas, McCarran (LAS)
Sat, 19 sep
62 £
Frontier Airlines
F9 4206
03:24
Ontario (ONT)
Sat, 19 sep
7h 17min
1 stop
10:41
Dallas, Fort Worth (DFW)
Sat, 19 sep
110 £
Frontier Airlines
F9 4206
03:24
Ontario (ONT)
Sat, 19 sep
34h 58min
2 stops
14:22
Milwaukee (MKE)
Sun, 20 sep +1
235 £
Frontier Airlines
F9 2908
18:45
Ontario (ONT)
Sat, 19 sep
8h 6min
1 stop
02:51
Phoenix, Sky Harbor (PHX)
Sun, 20 sep +1
109 £
Southwest Airlines
WN 3079
18:55
Ontario (ONT)
Sat, 19 sep
7h 25min
1 stop
02:20
New York, LaGuardia Airport (LGA)
Sun, 20 sep +1
76 £
Frontier Airlines
F9 4758
21:30
Ontario (ONT)
Sat, 19 sep
28h 6min
3 stops
01:36
Phoenix, Phoenix-Mesa Gateway Airport (AZA)
Mon, 21 sep +1
228 £

Low price calendar

To
September 2026
Price chart (September 2026)
min: 17 £ · max: 100 £
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100 £
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97 £
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73 £
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94 £
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17
Good deal
23 £
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65 £
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80 £
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34 £
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Good deal
17 £
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43 £

Airlines flying from Ontario

Frontier Airlines
Frontier Airlines
Price from
£17
Southwest Airlines
Southwest Airlines
Price from
£36
United Airlines
United Airlines
Price from
£43
Eagle Aviation
Eagle Aviation
Price from
£100
Alaska Airlines
Alaska Airlines
Price from
£117
Jetblue Airways
Jetblue Airways
Price from
£143
American Airlines
American Airlines
Price from
£144
China Airlines
China Airlines
Price from
£253
SkyWest Airlines
SkyWest Airlines
Price from
£336
Korean Air
Korean Air
Price from
£381

Popular destinations from Ontario

ONT
Ontario — San Francisco
United States → United States
SFO
from
£14
ONT
Ontario — Las Vegas
United States → United States
LAS
from
£14
ONT
Ontario — Denver
United States → United States
DEN
from
£24
ONT
Ontario — Seattle
United States → United States
SEA
from
£24
ONT
Ontario — Oakland
United States → United States
OAK
from
£26
ONT
Ontario — Houston
United States → United States
HOU
from
£28
ONT
Ontario — San Jose
United States → United States
SJC
from
£30
ONT
Ontario — Dallas
United States → United States
DFW
from
£41
ONT
Ontario — Sacramento
United States → United States
SAC
from
£51

Passenger reviews

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Internet abroad

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3 GB

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£9

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£10

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Frequently Asked Questions

Flights from Ontario are operated by the following airlines: Frontier Airlines, Southwest Airlines, United Airlines, American Airlines, Eagle Aviation.
The earliest flight (flight UA2363), operated by United Airlines, departs from Ontario at 13:08.
The cheapest ticket from Ontario to Las Vegas costs £45 — departure on 18 September, flight F94758, operated by Frontier Airlines.