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Cheap Flights from Ontario to Seattle (ONT - SEA)

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1 adult
Note: some airlines charge for infants in laps.
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 (Found by others)

Sun Mon Tue Wed Thu Fri Sat
        1 $199 2 $199 3 $183
4 $372 5 $199 6 $183 7 $183 8 $199 9 $205 10 $180
11 $216 12 $216 13 $183 14 $183 15 $216 16 $216 17 $216
18 $274 19 $297 20 $222 21 $186 22 $207 23 $258 24 $196
25 $215 26 $237 27 $258 28 $226 29 $216 30 $212 31 $198
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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 6:15 am 8:55 am May 19 - May 24
9044 6:15 am 8:55 am May 25 - May 26
9044 6:15 am 8:55 am May 18 - May 18
9044 6:15 am 8:55 am May 6 - May 17
9044 6:15 am 8:55 am Apr 15 - May 5
9099 10:40 am 1:12 pm May 4 - Jun 5
9099 10:40 am 1:14 pm Apr 15 - May 3