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Cheap Flights from Ontario to Seattle (ONT - SEA)

DepartReturn
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 $341 2 $303 3 $341 4 $341 5 $330 6 $341
7 $262 8 $214 9 $214 10 $252 11 $248 12 $234 13 $214
14 $250 15 $216 16 $182 17 $190 18 $196 19 $216 20 $188
21 $205 22 $196 23 $190 24 $185 25 $194 26 $196 27 $190
28 $209 29 $196 30 $185        
KAYAK searches hundreds of sites to find the best rate for your next flight from Ontario to Seattle. Get the best flight deal for your Seattle trip!
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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 6:25 am 8:56 am Sep 19 - Sep 27
9044 6:25 am 8:56 am Aug 26 - Sep 16
9044 6:25 am 8:56 am Sep 18 - Sep 18
9044 6:25 am 9:00 am Oct 6 - Oct 25
9044 6:25 am 9:00 am Sep 29 - Oct 4
9099 10:35 am 1:05 pm Sep 28 - Nov 1
9099 10:35 am 1:01 pm Aug 26 - Sep 27