SEARCH ONE AND DONE. - Compare hundreds of travel sites at once.
Choose where to book.
Find deals from over 400 airlines worldwide.

Cheap Flights from Toronto to Seattle (YTO - 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.
Choose Sites to Compare vs. KAYAK

Best fares from YTO to SEA (Found by others)

Sun Mon Tue Wed Thu Fri Sat
            1 $506
2 $834 3 $506 4 $500 5 $500 6 $500 7 $506 8 $529
9 $529 10 $524 11 $436 12
$436
13 $703 14 $442 15 $425
16
$425
17 $5936 18 $442 19 $425 20 $813 21 $487 22
$487
23
$487
24 $5936 25 $577 26 $577 27 $793 28
$793
29
$793
30 $577            
KAYAK searches hundreds of sites to find the best rate for your next flight from Toronto to Seattle. Get the best flight deal for your Seattle trip!
Here's how it works. Search KAYAK for a flight ticket from Toronto to Seattle. Sort, filter and compare results on one web page. Then book your plane ticket direct on the airline or travel agent site of your choice!
Direct flights YTO to SEA on United
Flight # Depart YYZ Arrive SEA Sun Mon Tue Wed Thu Fri Sat Valid Between
8525 6:35 pm 9:01 pm Oct 26 - Oct 31
8525 6:55 pm 9:10 pm Nov 1 - Nov 1
8525 6:55 pm 9:10 pm Nov 28 - Nov 30
8525 6:55 pm 9:10 pm Nov 2 - Nov 26