Cheap Flights from Chicago, IL to Seattle, WA from $63

Return flight: Seattle – Chicago

On Cheapflightsplus.com you will find 27 direct and 290 connecting flights from Chicago to Seattle. You can compare airfare deals from 8 airlines and multiple travel sites from $63, book and save on cheap plane tickets and last minute offers. Also check out CHI-SEA flight schedule to find best flight time, convenient departure and arrival airports.

Find One-Way and Round-Trip Chicago to Seattle Flight Deals

To find the cheapest one way airline ticket select the date with the lowest price on the calendar below and click «Find Flights». To search for round-trip flight deals click on the link «Check prices for return flights» and select the date of the return flight. Cheapest flights in November: $63 (one-way), $108 (round-trip).
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Full flight schedule will help you in detecting at what time planes fly from Chicago to Seattle. You can also specify the concrete flights and airlines on the route and how long the flight actually is. Use the calendar for today, tomorrow or other specific date as some flights are available only on certain days of the week.
Departure Arrival Flight Details Flight Duration Price
06:00 — 08:27
06:00 — 08:27 HA6300 Hawaiian Airlines
Chicago — Seattle
4h 27m
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from$63
06:00 — 08:27
06:00 — 08:27 AS891 Alaska Airlines
Chicago — Seattle
4h 27m
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from$67
06:00 — 08:27
06:00 — 08:27 HA6176 Hawaiian Airlines
Chicago — Seattle
4h 27m
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from$88
06:00 — 08:27
06:00 — 08:27 AS587 Alaska Airlines
Chicago — Seattle
4h 27m
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from$92
06:20 — 08:50
06:20 — 08:50 HA6301 Hawaiian Airlines
Chicago — Seattle
4h 30m
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from$64
06:20 — 08:50
06:20 — 08:50 AS942 Alaska Airlines
Chicago — Seattle
4h 30m
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from$67
07:10 — 09:43
07:10 — 09:43 UA1005 United Airlines
Chicago — Seattle
4h 33m
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from$99
07:10 — 09:49
07:10 — 09:49 UA1643 United Airlines
Chicago — Seattle
4h 39m
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from$124
08:00 — 10:27
08:00 — 10:27 HA6299 Hawaiian Airlines
Chicago — Seattle
4h 27m
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from$249
08:00 — 10:27
08:00 — 10:27 AS409 Alaska Airlines
Chicago — Seattle
4h 27m
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from$251
08:45 — 11:31
08:45 — 11:31 UA1620 United Airlines
Chicago — Seattle
4h 46m
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from$101
08:45 — 11:25
08:45 — 11:25 UA1414 United Airlines
Chicago — Seattle
4h 40m
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from$322
10:00 — 12:25
10:00 — 12:25 HA6295 Hawaiian Airlines
Chicago — Seattle
4h 25m
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from$164
10:00 — 12:25
10:00 — 12:25 AS329 Alaska Airlines
Chicago — Seattle
4h 25m
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from$167
12:55 — 15:32
12:55 — 15:32 UA1485 United Airlines
Chicago — Seattle
4h 37m
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from$123
13:08 — 15:45
13:08 — 15:45 UA1160 United Airlines
Chicago — Seattle
4h 37m
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from$101
15:20 — 17:52
15:20 — 17:52 HA6297 Hawaiian Airlines
Chicago — Seattle
4h 32m
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from$64
15:20 — 17:52
15:20 — 17:52 AS407 Alaska Airlines
Chicago — Seattle
4h 32m
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from$67
16:10 — 18:49
16:10 — 18:49 UA2278 United Airlines
Chicago — Seattle
4h 39m
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from$101
17:45 — 20:17
17:45 — 20:17 AS337 Alaska Airlines
Chicago — Seattle
4h 32m
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from$68
17:45 — 20:17
17:45 — 20:17 HA6296 Hawaiian Airlines
Chicago — Seattle
4h 32m
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from$96
17:58 — 20:35
17:58 — 20:35 AS335 Alaska Airlines
Chicago — Seattle
4h 37m
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from$99
19:51 — 22:30
19:51 — 22:30 HA6298 Hawaiian Airlines
Chicago — Seattle
4h 39m
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from$88
19:51 — 22:30
19:51 — 22:30 AS327 Alaska Airlines
Chicago — Seattle
4h 39m
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from$92
19:59 — 22:39
19:59 — 22:39 UA2211 United Airlines
Chicago — Seattle
4h 40m
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from$99
21:16 — 23:59
21:16 — 23:59 UA1001 United Airlines
Chicago — Seattle
4h 43m
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from$99
21:16 — 23:59
21:16 — 23:59 UA2200 United Airlines
Chicago — Seattle
4h 43m
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from$99
07:00 — 14:20
07:00 — 09:25 AS413 Alaska Airlines
Chicago — Portland
3h 55m stop
13:20 — 14:20 AS1016 Alaska Airlines
Portland — Seattle
9h 20m
including layover
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from$75
07:20 — 20:44
07:00 — 08:49 F91483 Frontier Airlines
Chicago — Denver
9h 23m stop
21:36 — 23:44 F94545 Frontier Airlines
Denver — Seattle
15h 24m
including layover
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from$94
08:20 — 15:04
08:20 — 11:20 HA6158 Hawaiian Airlines
Chicago — San Diego
40m stop
12:00 — 15:04 HA4781 Hawaiian Airlines
San Diego — Seattle
8h 44m
including layover
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from$92
08:20 — 17:34
08:20 — 11:20 HA6158 Hawaiian Airlines
Chicago — San Diego
3h 10m stop
14:30 — 17:34 HA6536 Hawaiian Airlines
San Diego — Seattle
11h 14m
including layover
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from$92
09:05 — 00:34
+1 day
09:05 — 10:58 F93173 Frontier Airlines
Chicago — Denver
11h 31m stop
22:29 — 00:34 F93405 Frontier Airlines
Denver — Seattle
17h 29m
including layover
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from$99
09:05 — 18:53
09:05 — 10:58 F93173 Frontier Airlines
Chicago — Denver
5h 46m stop
16:44 — 18:53 F91175 Frontier Airlines
Denver — Seattle
11h 48m
including layover
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from$105
12:35 — 18:59
14:44 — 16:33 F92209 Frontier Airlines
Chicago — Denver
2h 38m stop
16:08 — 18:15 F91175 Frontier Airlines
Denver — Seattle
8h 24m
including layover
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from$101
14:07 — 20:35
14:09 — 16:35 HA6293 Hawaiian Airlines
Chicago — Portland
2h 58m stop
19:45 — 20:41 HA6395 Hawaiian Airlines
Portland — Seattle
8h 28m
including layover
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from$93
14:44 — 23:42
14:44 — 16:36 F92209 Frontier Airlines
Chicago — Denver
5h 3m stop
21:36 — 23:44 F94545 Frontier Airlines
Denver — Seattle
10h 58m
including layover
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from$94
21:02 — 00:10
+2 days
21:02 — 23:07 NK2179 Spirit Airlines
Chicago — Las Vegas
22h 25m stop
21:32 — 00:10 NK2625 Spirit Airlines
Las Vegas — Seattle
29h 8m
including layover
Find flight
from$87
22:15 — 15:03
+1 day
21:02 — 23:07 NK2179 Spirit Airlines
Chicago — Las Vegas
11h 57m stop
11:40 — 14:25 NK2327 Spirit Airlines
Las Vegas — Seattle
18h 48m
including layover
Find flight
from$106
18:59 — 00:10
+2 days
18:59 — 21:30 NK2191 Spirit Airlines
Chicago — Los Angeles
21h 22m stop
18:52 — 20:10 NK2076 Spirit Airlines
Los Angeles — Las Vegas
1h 22m stop
21:32 — 00:10 NK2625 Spirit Airlines
Las Vegas — Seattle
31h 11m
including layover
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from$106
18:59 — 00:10
+2 days
18:59 — 21:30 NK2191 Spirit Airlines
Chicago — Los Angeles
13h stop
10:30 — 11:47 NK2685 Spirit Airlines
Los Angeles — Las Vegas
9h 45m stop
21:32 — 00:10 NK2625 Spirit Airlines
Las Vegas — Seattle
31h 11m
including layover
Find flight
from$106
*Departure and arrival times - local. Updated on June 6, 2025

Flight Information

Below we will explain in detail what the flights cost on the destination from Chicago to Seattle depends on and how to choose the most interesting flight option for you.

Distance between Chicago and Seattle is 2786 miles. Time difference between the cities is 2h. Airplanes depart 05:00 to 23:45 from 7 Chicago airports and arrive 05:00 to 23:45 to 3 Seattle airports. Average flight time is 4h 32m.

  • The fastest flight 4h 25m
  • Average flight time 4h 32m
  • The earliest flight 05:00
  • The latest flight 23:45
  • Distance 1732 ml

The cheapest months to travel to Seattle are october (from 85 $), september (from 86 $), august (from 87 $).

The most expensive months are december (from 193 $), january (from 170 $), july (from 119 $).

What is the lowest airfare Chicago to Seattle?

The cheapest plane ticket found by our users is $63. This airfare is for economy class on one-way HA6300 flight by Hawaiian Airlines for October 7, 2025 which leaves O'Hare International in Chicago at 06:00 am and arrives at Seattle Seattle-Tacoma Intl at 08:27.

Economy class
$63
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Business class
?
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First class
?
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Popular Airlines on the Route

The flight Chicago — Seattle is served by 8 regular airlines and 4 low-cost airlines. Most of the flights on this route are operated by United Airlines - 107 departures per week at the price of from $ 99 . And the most expensive tickets are offered by Alaska Airlines airline - from $ 5179.

Direct flights

There are 27 nonstop flights on the route. The fastest direct flight is HA6295 by Hawaiian Airlines takes 4h 25m and the cheapest is HA6300 by Hawaiian Airlines for $63.

  • from $99
    Find
  • AS - Alaska Airlines
    from $67
    Find
  • HA - Hawaiian Airlines
    from $63
    Find
See more direct flights

Connecting Flights

There are 290 flights with layovers on the route. The fastest connecting flight is AS6834 by Alaska Airlines takes 5h 52m and the cheapest is HA6300 by Hawaiian Airlines for $69.

  • from $108
    Find
  • AS - Alaska Airlines
    from $75
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  • F9 - Frontier Airlines
    from $69
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  • SY - Sun Country Airlines
    from $115
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  • TK - Turkish Airlines
    from $801
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  • HA - Hawaiian Airlines
    from $92
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  • NK - Spirit Airlines
    from $87
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  • G4 - Allegiant Air
    from $121
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See more connecting flights

Airports

You can fly from Chicago to Seattle from 7 airports (O'Hare International, Midway, Dupage County, Chicago FSS, Merrill C Meigs (closed), Pal-Waukee, Chicago NAS).

Chicago airports

  • O'Hare International-ORD
    from $63
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  • Midway-MDW
    from $94
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  • Dupage County-DPA
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  • Chicago FSS-CHI
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  • Merrill C Meigs (closed)-CGX
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  • Pal-Waukee-PWK
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  • Chicago NAS-NOH
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Seattle airports

  • Boeing Field International Airport-BFI
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  • Seattle-Tacoma Intl-SEA
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  • Kenmore Air Harbor SPB-LKE
    Find

How to book a plane ticket yourself?

How to book an air ticket yourself?
  • Fill in the search parameters — cities of departure and destination, departure and return dates and click «Find flights»
  • Select the best flight that you like. Please, check the airports of departure and arrival. Select the best fare, but pay attention to the following flight details - airports of departure and arrival, flight duration and layovers. Please use filters and sort to find the best flight.
  • Click «Buy» when you are ready — our system will redirect you to the site that sells the selected flight ticket.
  • Fill in all passenger and payment information — passport and contact information, please double check all passengers’ names and make a payment for your itinerary.
  • That's it — you will receive an email with your e-ticket usually within 10 minutes after your flight is confirmed. Please, print the e-ticket and have it with you at the airport. You would need to have only a passport and/or a required form of ID to travel. Please, check your Visa requirements if you travel outside of the United States or Canada.

    To find a plane ticket, please select dates.

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