Seattle to Chicago

SEAORD

Fly from Seattle to Chicago starting at USD 125 with Frontier Airlines.Best fare available on Oct 24, 2026.Limited seats. Better plans. Book before it's gone.

Seattle to Chicago cheapest flights this week

10 Oct
Frontier Airlines
20:00SEA
04:34ORD
1 StopUSD 198VIEW DEAL
12 Oct
Frontier Airlines
21:16SEA
16:31ORD
2 StopUSD 300VIEW DEAL
13 Oct
United Airlines
07:00SEA
11:15ORD
DirectUSD 162VIEW DEAL
14 Oct
American Airlines
06:12SEA
10:26ORD
DirectUSD 151VIEW DEAL
14 Oct
American Airlines
17:39SEA
21:45ORD
DirectUSD 170VIEW DEAL
15 Oct
United Airlines
17:07SEA
21:10ORD
DirectUSD 162VIEW DEAL
16 Oct
American Airlines
17:39SEA
21:45ORD
DirectUSD 318VIEW DEAL
24 Oct
Frontier Airlines
20:00SEA
04:34ORD
1 StopUSD 125VIEW DEAL
26 Oct
United Airlines
22:56SEA
03:06ORD
DirectUSD 188VIEW DEAL
26 Oct
American Airlines
17:39SEA
21:45ORD
DirectUSD 226VIEW DEAL

Seattle to Chicago monthly flight fare trend

Oct
from USD 107
Nov
from USD 139
Dec
No flights
Jan
from USD 151
Feb
from USD 154
Mar
No flights

Airport Details

Origin

Seattle

Seattle–Tacoma International Airport (SEA)

Seattle, SEA
Zone

Los Angeles

Elev

433 ft

Destination

Chicago

Chicago O'Hare International Airport (ORD)

Chicago, ORD
Zone

Chicago

Elev

680 ft

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