Cheap flights from Chicago to Seattle from $0
Compare prices across airlines and find the best deals
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Discover deals on Chicago to Seattle flights
Typical range $0–$0•Cheapest found $0
Checking latest prices...Find cheap flights from Chicago to Seattle
Best
8 Feb
DEP
18:06
ORD
20:56
SEA
4h 50m
8 Feb
DEPARTURE
18:06 - 20:56
4h 50m
ORD
SEA
8 Feb
DEP
15:35
ORD
18:22
SEA
4h 47m
8 Feb
DEPARTURE
15:35 - 18:22
4h 47m
ORD
SEA
Alaska Airlines flights from Chicago to Seattle
Our best Alaska Airlines deals on Chicago to Seattle tickets
Best
8 Feb
DEP
18:06
ORD
20:56
SEA
4h 50m
8 Feb
DEPARTURE
18:06 - 20:56
4h 50m
ORD
SEA
8 Feb
DEP
15:35
ORD
18:22
SEA
4h 47m
8 Feb
DEPARTURE
15:35 - 18:22
4h 47m
ORD
SEA
American Airlines flights from Chicago to Seattle
Our best American Airlines deals on Chicago to Seattle tickets
Best
8 Feb
DEP
09:20
ORD
12:01
SEA
4h 41m
8 Feb
DEPARTURE
09:20 - 12:01
4h 41m
ORD
SEA
8 Feb
DEP
10:40
ORD
13:19
SEA
4h 39m
8 Feb
DEPARTURE
10:40 - 13:19
4h 39m
ORD
SEA
Hawaiian Airlines flights from Chicago to Seattle
Our best Hawaiian Airlines deals on Chicago to Seattle tickets
Best
8 Feb
DEP
08:00
ORD
10:46
SEA
4h 46m
8 Feb
DEPARTURE
08:00 - 10:46
4h 46m
ORD
SEA
8 Feb
DEP
15:35
ORD
18:22
SEA
4h 47m
8 Feb
DEPARTURE
15:35 - 18:22
4h 47m
ORD
SEA
What's the cheapest day of the week to fly from Chicago to Seattle?
If your flying dates are flexible, you should consider flying to Seattle on a Sun, as we generally find the cheapest rates on that day. On the other hand, Tue is the most expensive day to fly.
What is the cheapest month to fly from Chicago to Seattle?
The cheapest month for flights from Chicago to Seattle is Sep, where tickets cost $203 on average. The most expensive months are Jul.
JanFebMarAprMayJunJulAugSepOctNovDec
$293$248$203
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Everything you should know
Cheapest one-way flight
$215
Typical prices: $215–$429
When to book
3 weeks
in advance to save around 25%
Good to know
💰
Save money
Compare prices across airlines to find the best deal. Prices can vary significantly.
📅
Be flexible
Flying midweek or in off-peak seasons can save you up to 30% on airfare.
⏰
Book early
Booking 3+ weeks in advance typically offers the best prices.
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Frequently asked questions
The cheapest flight from Chicago to Seattle currently costs AUD $215. Prices typically range from $215 to $215. Prices change frequently, so we recommend booking early and being flexible with your travel dates.