United Airlines Chicago to Seattle Flights

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Best Airfare Price Calendar Flights Schedule

Cheapflightsplus.com will find cheap United Airlines flights from Chicago to Seattle. Compare airline ticket prices and book air tickets starting from $99 from trusted online travel agencies, web sites and directly from airlines. Check flights schedule of United Airlines, arrivals and departure details below.

Find Cheap Airfare Chicago (IL) — Seattle (WA) by United Airlines

To find cheap tickets choose a day of your departure with attractive price on the graph below and click «Find flights». For round trip flights please click «Check prices for return flight». The cheapest airfare is in june: one-way - $99, two-way – $170.

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Cheap Flights from Chicago to Seattle by United Airlines

Look at the list of plane tickets for the most popular direct and connecting flights by United Airlines, their prices start from $99. The fastest nonstop flight takes 4h 33m. The fastest connecting flight — 6h 35m.

Price	Departure	Arrival	Flight Time	Airline	Flight
from $99 Find flight	9:16 pm Chicago O'Hare International	11:59 pm Seattle Seattle-Tacoma Intl	4h 43m	United Airlines	UA1001
from $99 Find flight	7:59 pm Chicago O'Hare International	10:39 pm Seattle Seattle-Tacoma Intl	4h 40m	United Airlines	UA2211
from $99 Find flight	9:16 pm Chicago O'Hare International	11:59 pm Seattle Seattle-Tacoma Intl	4h 43m	United Airlines	UA2200
from $99 Find flight	7:10 am Chicago O'Hare International	9:43 am Seattle Seattle-Tacoma Intl	4h 33m	United Airlines	UA1005
from $101 Find flight	4:10 pm Chicago O'Hare International	6:49 pm Seattle Seattle-Tacoma Intl	4h 39m	United Airlines	UA2278
from $101 Find flight	1:08 pm Chicago O'Hare International	3:45 pm Seattle Seattle-Tacoma Intl	4h 37m	United Airlines	UA1160
from $101 Find flight	8:45 am Chicago O'Hare International	11:31 am Seattle Seattle-Tacoma Intl	4h 46m	United Airlines	UA1620
from $123 Find flight	12:55 pm Chicago O'Hare International	3:32 pm Seattle Seattle-Tacoma Intl	4h 37m	United Airlines	UA1485
from $124 Find flight	7:10 am Chicago O'Hare International	9:49 am Seattle Seattle-Tacoma Intl	4h 39m	United Airlines	UA1643
from $322 Find flight	8:45 am Chicago O'Hare International	11:25 am Seattle Seattle-Tacoma Intl	4h 40m	United Airlines	UA1414
from $108 Find flight	2:30 pm Chicago O'Hare International	11:09 pm Seattle Seattle-Tacoma Intl	10h 39m layover 3h 40m - San Francisco	United Airlines	UA1577 UA1577
from $126 Find flight	1:04 pm Chicago O'Hare International	5:49 pm Seattle Seattle-Tacoma Intl	6h 45m layover 1h 4m - Denver	United Airlines	UA622 UA1254
from $126 Find flight	1:05 pm Chicago O'Hare International	8:48 pm Seattle Seattle-Tacoma Intl	9h 43m layover 1h 45m - Washington D.C.	United Airlines	UA2337 UA326
from $126 Find flight	8:52 am Chicago O'Hare International	3:53 pm Seattle Seattle-Tacoma Intl	9h 1m layover 1h 10m - Washington D.C.	United Airlines	UA1068 UA1395
from $126 Find flight	6:20 pm Chicago O'Hare International	0:59 am+1 день Seattle Seattle-Tacoma Intl	8h 39m layover 1h 46m - San Francisco	United Airlines	UA2179 UA2110
from $162 Find flight	8:52 am Chicago O'Hare International	3:38 pm Seattle Seattle-Tacoma Intl	8h 46m layover 0h 55m - Washington D.C.	United Airlines	UA2029 UA1395

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*Departure and arrival times are local. Prices are for one-way flights. Information refreshed on 06/06/2025

United Airlines Flight Schedule Chicago to Seattle

Below is a detailed 2025 flight schedule for today, tomorrow and all other days. It may vary depending on season and a day of the week of your desired trip. We recommend booking your itinerary at least 2 weeks prior your travel to get the best price and availability by the airline.

Departure	Flight Details	Flight Time	Price
12:55 pm — 3:32 pm	12:55 pm — 3:32 pm UA1485 United Airlines Chicago — Seattle	4h 37m	Find flight from$123
1:08 pm — 3:45 pm	1:08 pm — 3:45 pm UA1160 United Airlines Chicago — Seattle	4h 37m	Find flight from$101
4:10 pm — 6:49 pm	4:10 pm — 6:49 pm UA2278 United Airlines Chicago — Seattle	4h 39m	Find flight from$101
7:10 am — 9:43 am	7:10 am — 9:43 am UA1005 United Airlines Chicago — Seattle	4h 33m	Find flight from$99
7:10 am — 9:49 am	7:10 am — 9:49 am UA1643 United Airlines Chicago — Seattle	4h 39m	Find flight from$124
7:59 pm — 10:39 pm	7:59 pm — 10:39 pm UA2211 United Airlines Chicago — Seattle	4h 40m	Find flight from$99
8:45 am — 11:31 am	8:45 am — 11:31 am UA1620 United Airlines Chicago — Seattle	4h 46m	Find flight from$101
8:45 am — 11:25 am	8:45 am — 11:25 am UA1414 United Airlines Chicago — Seattle	4h 40m	Find flight from$322
9:16 pm — 11:59 pm	9:16 pm — 11:59 pm UA1001 United Airlines Chicago — Seattle	4h 43m	Find flight from$99
9:16 pm — 11:59 pm	9:16 pm — 11:59 pm UA2200 United Airlines Chicago — Seattle	4h 43m	Find flight from$99
10:53 am — 7:15 pm	10:53 am — 1:40 pm UA343 United Airlines Chicago — San Francisco 3h 22m stop 5:02 pm — 7:15 pm UA2332 United Airlines San Francisco — Seattle	10h 22m including layover	Find flight from$132
10:56 am — 3:31 pm	10:56 am — 12:43 pm UA1803 United Airlines Chicago — Denver 52m stop 1:35 pm — 3:31 pm UA594 United Airlines Denver — Seattle	6h 35m including layover	Find flight from$130
11:23 am — 8:41 pm	11:23 am — 2:28 pm UA1190 United Airlines Chicago — Washington D.C. 3h 20m stop 5:48 pm — 8:41 pm UA326 United Airlines Washington D.C. — Seattle	11h 18m including layover	Find flight from$127
12:45 pm — 7:14 pm	12:45 pm — 3:40 pm UA2657 United Airlines Chicago — Houston 45m stop 4:25 pm — 7:14 pm UA774 United Airlines Houston — Seattle	8h 29m including layover	Find flight from$126
1:04 pm — 5:49 pm	1:04 pm — 2:46 pm UA622 United Airlines Chicago — Denver 1h 4m stop 3:50 pm — 5:49 pm UA1254 United Airlines Denver — Seattle	6h 45m including layover	Find flight from$126
2:30 pm — 11:09 pm	2:30 pm — 5:15 pm UA1577 United Airlines Chicago — San Francisco 3h 40m stop 8:55 pm — 11:09 pm UA1577 United Airlines San Francisco — Seattle	10h 39m including layover	Find flight from$108
2:35 pm — 10:15 pm	1:55 pm — 4:22 pm UA378 United Airlines Chicago — Los Angeles 2h 19m stop 7:07 pm — 9:58 pm UA684 United Airlines Los Angeles — Seattle	9h 40m including layover	Find flight from$127
3:35 pm — 9:58 pm	3:35 pm — 6:06 pm UA576 United Airlines Chicago — Los Angeles 1h 1m stop 7:07 pm — 9:58 pm UA684 United Airlines Los Angeles — Seattle	8h 23m including layover	Find flight from$127
3:58 pm — 10:52 pm	2:26 pm — 5:25 pm UA1314 United Airlines Chicago — Houston 1h 12m stop 8:13 pm — 11:00 pm UA2456 United Airlines Houston — Seattle	8h 54m including layover	Find flight from$133
4:50 pm — 0:59 am +1 day	4:50 pm — 7:36 pm UA1660 United Airlines Chicago — San Francisco 3h 19m stop 10:55 pm — 0:59 am UA2400 United Airlines San Francisco — Seattle	10h 9m including layover	Find flight from$127
5:00 am — 9:57 am	5:00 am — 6:41 am UA2666 United Airlines Chicago — Denver 1h 19m stop 8:00 am — 9:57 am UA2271 United Airlines Denver — Seattle	6h 57m including layover	Find flight from$130
5:56 pm — 0:56 am +1 day	5:56 pm — 8:55 pm UA2677 United Airlines Chicago — Washington D.C. 1h 11m stop 10:06 pm — 0:56 am UA716 United Airlines Washington D.C. — Seattle	9h including layover	Find flight from$127
6:00 am — 12:46 pm	6:00 am — 8:50 am UA468 United Airlines Chicago — Houston 1h 7m stop 9:57 am — 12:46 pm UA2606 United Airlines Houston — Seattle	8h 46m including layover	Find flight from$126
6:20 pm — 0:59 am +1 day	6:20 pm — 9:09 pm UA2179 United Airlines Chicago — San Francisco 1h 46m stop 10:55 pm — 0:59 am UA2110 United Airlines San Francisco — Seattle	8h 39m including layover	Find flight from$126
8:52 am — 3:53 pm	8:52 am — 11:55 am UA1068 United Airlines Chicago — Washington D.C. 1h 10m stop 1:05 pm — 3:53 pm UA1395 United Airlines Washington D.C. — Seattle	9h 1m including layover	Find flight from$126

Departure	Arrival	Flight Details	Flight Time	Price
		stop stop	including layover	Find flight from$

*Departure and arrival times are local. Last updated on 06/06/2025

Flight Information

There are 10 flights by United Airlines from Chicago to Seattle every week with departures from Chicago FSS, Midway, O'Hare International, Chicago NAS, Merrill C Meigs (closed), Dupage County, Pal-Waukee. All flights arrive at Seattle-Tacoma Intl, Boeing Field International Airport, Kenmore Air Harbor SPB.

Departures start from 10:35 am to 9:50 pm. Nonstop flight is 4h 33m. The time difference between Chicago and Seattle is 2h.

The fastest flight 4h 33m
Average flight time 4h 40m
The earliest flight 10:35 am
The latest flight 9:50 pm
Distance 1732 ml

The cheapest months for traveling to Seattle are july (from 132 $), june (from 133 $), august (from 133 $).

The most expensive and popular months are november (from 208 $), december (from 193 $), february (from 170 $).

The cheapest flight by United Airlines that our users were able to find is $99. This airfare is economy class on one-way UA1001 flight for July 5, 2025 leaving O'Hare International in Chicago at 9:16 pm, it includes all taxes and additional fees.

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United Airlines Airplanes on the Route

List of the most popular United Airlines airplanes flying from Chicago to Seattle:

Other Popular Airlines on the Route

Besides United Airlines there are other 7 airline carriers between Chicago and Seattle. Please review schedules and prices from the most popular airlines to find the best airfare deals from Chicago to Seattle.

Nonstop flights

There are 27 direct flights every day from Chicago. Airlines and fares are below:

AS - Alaska Airlines

from $67

Find
HA - Hawaiian Airlines

from $63

Find

See more direct flights

Connecting Flights

List of flights with layovers (1 and more stops):

AS - Alaska Airlines

from $75

Find
F9 - Frontier Airlines

from $69

Find
SY - Sun Country Airlines

from $115

Find
TK - Turkish Airlines

from $801

Find
HA - Hawaiian Airlines

from $92

Find
NK - Spirit Airlines

from $87

Find
G4 - Allegiant Air

from $121

Find

See more connecting flights

How to book an air ticket yourself?

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