Seattle to Chicago

SEAORD

Fly from Seattle to Chicago starting at USD 132 with Frontier Airlines.Best fare available on Aug 31, 2026.Limited seats. Better plans. Book before it's gone.

Seattle to Chicago cheapest flights this week

19 Aug
Frontier Airlines
20:53SEA
17:02ORD
1 StopUSD 168VIEW DEAL
20 Aug
Frontier Airlines
21:29SEA
17:02ORD
1 StopUSD 170VIEW DEAL
21 Aug
Frontier Airlines
10:34SEA
04:17ORD
1 StopUSD 215VIEW DEAL
22 Aug
Frontier Airlines
14:37SEA
11:36ORD
1 StopUSD 136VIEW DEAL
22 Aug
Frontier Airlines
20:53SEA
17:02ORD
1 StopUSD 159VIEW DEAL
22 Aug
Alaska Airlines
06:00SEA
10:07ORD
DirectUSD 223VIEW DEAL
23 Aug
Frontier Airlines
19:06SEA
11:36ORD
1 StopUSD 167VIEW DEAL
24 Aug
Frontier Airlines
13:35SEA
11:36ORD
1 StopUSD 175VIEW DEAL
27 Aug
Frontier Airlines
14:37SEA
11:36ORD
1 StopUSD 137VIEW DEAL
31 Aug
Frontier Airlines
19:06SEA
11:36ORD
1 StopUSD 132VIEW DEAL

Seattle to Chicago monthly flight fare trend

Aug
from USD 132
Sep
from USD 115
Oct
from USD 133
Nov
from USD 201
Dec
No flights
Jan
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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