Cheap Flights from Ontario to Seattle (ONT - SEA)

Depart
Return
1 adult
Adults
18-64
Seniors
65+
Youth
12-17
Child
2-11
Seat Infant
under 2
Lap Infant
under 2
The price shown for each flight will be the average for all passengers including any infants.
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Best fares from ONT to SEA

Sun Mon Tue Wed Thu Fri Sat
  1 $364 2 $293 3 $245 4 $218 5 $234 6 $186
7 $238 8 $218 9 $127 10 $187 11 $147 12 $204 13 $137
14 $204 15 $202 16 $188 17 $188 18 $204 19 $204 20 $276
21 $234 22 $234 23 $234 24 $225 25 $204 26 $314 27 $375
28 $417 29 $354 30 $297 31 $260      

Best fares found by others...

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Direct flights ONT to SEA on Delta
Flight # Depart ONT Arrive SEA Sun Mon Tue Wed Thu Fri Sat Valid Between
9044 6:20 am 9:00 am Dec 20 - Dec 20
9044 6:20 am 9:00 am Dec 19 - Dec 26
9044 6:20 am 9:00 am Dec 21 - Dec 25
9044 6:20 am 9:00 am Dec 27 - Jan 1
9044 6:20 am 9:00 am Dec 28 - Dec 28
9044 6:20 am 9:00 am Dec 29 - Dec 29
9044 6:20 am 9:00 am Dec 30 - Jan 3
9044 6:20 am 9:00 am Jan 4 - Jan 4
9099 10:25 am 1:03 pm Jan 5 - Jan 5
9099 10:25 am 1:03 pm Jan 4 - Jan 4
9099 10:25 am 1:03 pm Jan 3 - Jan 3
9099 10:25 am 1:03 pm Dec 25 - Jan 1
9099 10:25 am 1:03 pm Dec 24 - Dec 30
9099 10:25 am 1:08 pm Dec 22 - Jan 2
9099 10:25 am 1:03 pm Dec 17 - Dec 23
9099 10:25 am 1:03 pm Dec 16 - Dec 16
9099 10:25 am 1:03 pm Dec 15 - Dec 15
9099 10:25 am 1:08 pm Dec 13 - Dec 20
9099 10:25 am 1:03 pm Dec 12 - Dec 12
9099 10:25 am 1:03 pm Dec 8 - Dec 11
9099 10:25 am 1:03 pm Dec 7 - Dec 14
9099 10:25 am 1:04 pm Dec 1 - Dec 6
7502 11:10 am 1:55 pm Jan 6 - Jan 10