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 Chicago to Seattle (CHI - 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 CHI to SEA (Found by others)

Sun Mon Tue Wed Thu Fri Sat
  1 $412 2 $355 3 $330 4 $354 5 $339 6 $355
7 $345 8 $340 9 $312 10 $320 11 $324 12 $320 13 $312
14 $354 15 $312 16 $310 17 $312 18 $326 19 $341 20 $349
21 $371 22 $355 23 $355 24 $310 25 $326 26 $318 27 $299
28 $324 29 $312 30 $299        
KAYAK searches hundreds of sites to find the best rate for your next flight from Chicago to Seattle. Get the best flight deal for your Seattle trip!
Here's how it works. Search KAYAK for a flight ticket from Chicago 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 CHI to SEA on Delta
Flight # Depart ORD Arrive SEA Sun Mon Tue Wed Thu Fri Sat Valid Between
9015 8:00 am 10:20 am Aug 25 - Sep 26
8992 3:20 pm 5:39 pm Aug 29 - Aug 29
8992 3:20 pm 5:39 pm Aug 24 - Aug 30
8992 3:20 pm 5:39 pm Aug 31 - Sep 7
8992 3:20 pm 5:39 pm Sep 1 - Sep 1
8992 3:20 pm 5:39 pm Sep 8 - Sep 27