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Cheap Flights from Ontario
Cheap Flights from Ontario
393 deals departing from Ontario
Save 65%
$1657
$8374
ONT
DXB
Ontario to Dubai
Qatar Airways
Nonstop
·
round trip
Jun 29 – Jul 10
Save 55%
$171
$364
ONT
PHL
Ontario to Philadelphia
Frontier Airlines
Nonstop
·
round trip
Apr 22 – Apr 26
Save 52%
$148
$306
ONT
PDX
Ontario to Portland
Frontier Airlines
Nonstop
·
round trip
Apr 28 – May 3
Save 51%
$91
$186
ONT
DEN
Ontario to Denver
Frontier Airlines
Nonstop
·
round trip
Apr 16 – Apr 22
Save 51%
$176
$360
ONT
PHX
Ontario to Phoenix
Frontier Airlines
Nonstop
·
round trip
May 30 – Jun 2
Save 50%
$648
$1298
ONT
CAI
Ontario to Cairo
Alaska Airlines
Nonstop
·
round trip
Oct 27 – Nov 17
Save 49%
$64
$126
ONT
LAS
Ontario to Las Vegas
Frontier Airlines
Nonstop
·
round trip
Apr 13 – Apr 15
Ending Soon
Save 49%
$253
$492
ONT
SJO
Ontario to San Jose
American Airlines
Nonstop
·
round trip
May 7 – May 12
Save 48%
$724
$1391
ONT
RIO
Ontario to Rio De Janeiro
American Airlines
Nonstop
·
round trip
Apr 8 – Apr 15
Last Chance
ITO
Hilo
Save 47%
$574
$1079
ONT
ITO
Ontario to Hilo
Alaska Airlines
Nonstop
·
round trip
Jun 1 – Jun 8
NAN
Nadi
Save 47%
$847
$1602
ONT
NAN
Ontario to Nadi
American Airlines
Nonstop
·
round trip
Apr 7 – May 7
Last Chance
Save 46%
$68
$127
ONT
LAS
Ontario to Las Vegas
Frontier Airlines
Nonstop
·
round trip
May 18 – May 22
UIO
Quito
Save 46%
$525
$969
ONT
UIO
Ontario to Quito
United Airlines
Nonstop
·
round trip
Aug 28 – Sep 5
Save 44%
$71
$126
ONT
LAS
Ontario to Las Vegas
Frontier Airlines
Nonstop
·
round trip
Apr 14 – Apr 16
Save 44%
$89
$158
ONT
SFO
Ontario to San Francisco
Frontier Airlines
Nonstop
·
round trip
Apr 30 – May 3
KTI
Phnom Penh (Ta Khmau)
Save 44%
$779
$1390
ONT
KTI
Ontario to Phnom Penh (Ta Khmau)
United Airlines
Nonstop
·
round trip
Apr 7 – May 7
Last Chance
CAN
Guangzhou
Save 44%
$894
$1585
ONT
CAN
Ontario to Guangzhou
United Airlines
Nonstop
·
round trip
Apr 30 – May 8
NHA
Nha Trang
Save 43%
$1014
$1773
ONT
NHA
Ontario to Nha Trang
Korean Air
Nonstop
·
round trip
Apr 20 – May 13
Save 42%
$179
$306
ONT
PDX
Ontario to Portland
Alaska Airlines
Nonstop
·
round trip
Apr 28 – May 3
Save 41%
$919
$1551
ONT
TAS
Ontario to Tashkent
Alaska Airlines
Nonstop
·
round trip
Sep 1 – Sep 22
Save 40%
$109
$183
ONT
SEA
Ontario to Seattle
Frontier Airlines
Nonstop
·
round trip
May 2 – May 5
Save 40%
$1107
$1856
ONT
AMS
Ontario to Amsterdam
Alaska Airlines
Nonstop
·
round trip
May 20 – Jun 7
Save 38%
$114
$183
ONT
SEA
Ontario to Seattle
Frontier Airlines
Nonstop
·
round trip
May 2 – May 5
MIL
Milan
Save 38%
$481
$779
ONT
MIL
Ontario to Milan
United Airlines
Nonstop
·
round trip
Apr 24 – May 6
Save 37%
$229
$361
ONT
NYC
Ontario to New York
JetBlue Airways
Nonstop
·
round trip
Jun 14 – Jun 16
Save 37%
$1125
$1796
ONT
BEG
Ontario to Belgrade
Air Serbia
Nonstop
·
round trip
Jul 1 – Jul 14
Save 36%
$138
$217
ONT
SLC
Ontario to Salt Lake City
Frontier Airlines
Nonstop
·
round trip
May 17 – May 26
Save 35%
$62
$96
ONT
LAS
Ontario to Las Vegas
Frontier Airlines
Nonstop
·
round trip
May 10 – Jun 1
Save 35%
$211
$311
ONT
NYC
Ontario to New York
Frontier Airlines
Nonstop
·
round trip
Apr 23 – Apr 30
Save 35%
$234
$360
ONT
PHX
Ontario to Phoenix
American Airlines
Nonstop
·
round trip
May 30 – Jun 3
Save 35%
$236
$364
ONT
PHL
Ontario to Philadelphia
Frontier Airlines
Nonstop
·
round trip
Jun 8 – Jun 10
Save 35%
$764
$1176
ONT
WAW
Ontario to Warsaw
United Airlines
Nonstop
·
round trip
May 11 – Jun 2
Save 35%
$931
$1425
ONT
HKT
Ontario to Phuket
China Airlines
Nonstop
·
round trip
May 3 – May 22
CPT
Cape Town
Save 35%
$1797
$2754
ONT
CPT
Ontario to Cape Town
American Airlines
Nonstop
·
round trip
May 5 – May 12
Save 34%
$104
$158
ONT
SFO
Ontario to San Francisco
Frontier Airlines
Nonstop
·
round trip
May 12 – May 14
Save 34%
$207
$316
ONT
NYC
Ontario to New York
Frontier Airlines
Nonstop
·
round trip
Apr 30 – May 5
JED
Jeddah
Save 34%
$1402
$2128
ONT
JED
Ontario to Jeddah
JetBlue Airways
Nonstop
·
round trip
Sep 10 – Sep 30
Save 33%
$135
$203
ONT
SJC
Ontario to San Jose
Southwest Airlines
Nonstop
·
round trip
May 1 – May 3
Save 33%
$136
$203
ONT
SJC
Ontario to San Jose
Southwest Airlines
Nonstop
·
round trip
Apr 21 – Apr 23
Save 33%
$205
$308
ONT
NYC
Ontario to New York
Frontier Airlines
Nonstop
·
round trip
Apr 28 – May 12
Save 33%
$206
$308
ONT
NYC
Ontario to New York
Frontier Airlines
Nonstop
·
round trip
Apr 22 – Apr 24
Save 33%
$311
$464
ONT
MKC
Ontario to Kansas City
Southwest Airlines
Nonstop
·
round trip
Apr 21 – May 3
Save 33%
$571
$852
ONT
MNL
Ontario to Manila
China Airlines
Nonstop
·
round trip
Oct 8 – Nov 7
Save 33%
$571
$852
ONT
MNL
Ontario to Manila
China Airlines
Nonstop
·
round trip
Oct 26 – Nov 15
VCE
Venice
Save 33%
$721
$1076
ONT
VCE
Ontario to Venice
United Airlines
Nonstop
·
round trip
Jan 20 – Jan 29
ITO
Hilo
Save 33%
$1079
$1618
ONT
ITO
Ontario to Hilo
Alaska Airlines
Nonstop
·
round trip
Nov 24 – Nov 28
CMN
Casablanca
Save 33%
$1484
$2223
ONT
CMN
Ontario to Casablanca
United Airlines
Nonstop
·
round trip
Jun 14 – Jul 31
MSQ
Minsk
Save 33%
$1907
$2866
ONT
MSQ
Ontario to Minsk
Southwest Airlines
Nonstop
·
round trip
Apr 9 – Apr 30
Ending Soon
Save 32%
$170
$253
ONT
AUS
Ontario to Austin
Frontier Airlines
Nonstop
·
round trip
May 7 – May 12
FCA
Kalispell
Save 32%
$370
$548
ONT
FCA
Ontario to Kalispell
United Airlines
Nonstop
·
round trip
May 2 – May 9
View all 393 deals