United Airlines Seattle to Chicago Flights

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Best Airfare Price Calendar Flights Schedule

Cheapflightsplus.com will find cheap United Airlines flights from Seattle to Chicago. Compare airline ticket prices and book air tickets starting from $100 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 Seattle (WA) — Chicago (IL) 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 july: one-way - $100, two-way – $171.

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Cheap Flights from Seattle to Chicago 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 $100. The fastest nonstop flight takes 4h. The fastest connecting flight — 6h 5m.

Price	Departure	Arrival	Flight Time	Airline	Flight
from $100 Find flight	10:55 am Seattle Seattle-Tacoma Intl	5:10 pm Chicago O'Hare International	4h 15m	United Airlines	UA2671
from $100 Find flight	1:55 pm Seattle Seattle-Tacoma Intl	8:10 pm Chicago O'Hare International	4h 15m	United Airlines	UA1298
from $100 Find flight	11:25 pm Seattle Seattle-Tacoma Intl	5:25 am+1 день Chicago O'Hare International	4h 0m	United Airlines	UA747
from $100 Find flight	7:00 am Seattle Seattle-Tacoma Intl	1:15 pm Chicago O'Hare International	4h 15m	United Airlines	UA2618
from $100 Find flight	4:55 pm Seattle Seattle-Tacoma Intl	10:55 pm Chicago O'Hare International	4h 0m	United Airlines	UA1951
from $101 Find flight	0:20 am Seattle Seattle-Tacoma Intl	6:28 am Chicago O'Hare International	4h 8m	United Airlines	UA1832
from $101 Find flight	11:48 pm Seattle Seattle-Tacoma Intl	5:51 am+1 день Chicago O'Hare International	4h 3m	United Airlines	UA1180
from $105 Find flight	7:00 am Seattle Seattle-Tacoma Intl	1:14 pm Chicago O'Hare International	4h 14m	United Airlines	UA1617
from $105 Find flight	10:56 am Seattle Seattle-Tacoma Intl	5:05 pm Chicago O'Hare International	4h 9m	United Airlines	UA265
from $107 Find flight	10:55 am Seattle Seattle-Tacoma Intl	5:10 pm Chicago O'Hare International	4h 15m	United Airlines	UA2652
from $125 Find flight	11:45 pm Seattle Seattle-Tacoma Intl	5:48 am+1 день Chicago O'Hare International	4h 3m	United Airlines	UA299
from $159 Find flight	1:55 pm Seattle Seattle-Tacoma Intl	8:11 pm Chicago O'Hare International	4h 16m	United Airlines	UA2627
from $109 Find flight	12:52 pm Seattle Seattle-Tacoma Intl	11:12 pm Chicago O'Hare International	8h 20m layover 1h 48m - San Francisco	United Airlines	UA1482 UA1482
from $117 Find flight	2:24 pm Seattle Seattle-Tacoma Intl	10:34 pm Chicago O'Hare International	6h 10m layover 0h 45m - Denver	United Airlines	UA2859 UA2258
from $128 Find flight	8:45 am Seattle Seattle-Tacoma Intl	7:50 pm Chicago O'Hare International	9h 5m layover 3h 42m - Denver	United Airlines	UA1505 UA213
from $162 Find flight	11:11 am Seattle Seattle-Tacoma Intl	9:04 pm Chicago O'Hare International	7h 53m layover 2h 22m - Denver	United Airlines	UA1969 UA1898

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*Departure and arrival times are local. Prices are for one-way flights. Information refreshed on 07/03/2025

United Airlines Flight Schedule Seattle to Chicago

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
0:20 am — 6:28 am	0:20 am — 6:28 am UA1832 United Airlines Seattle — Chicago	4h 8m	Find flight from$101
10:55 am — 5:10 pm	10:55 am — 5:10 pm UA2671 United Airlines Seattle — Chicago	4h 15m	Find flight from$100
10:55 am — 5:10 pm	10:55 am — 5:10 pm UA2652 United Airlines Seattle — Chicago	4h 15m	Find flight from$107
10:56 am — 5:05 pm	10:56 am — 5:05 pm UA265 United Airlines Seattle — Chicago	4h 9m	Find flight from$105
11:25 pm — 5:25 am +1 day	11:25 pm — 5:25 am UA747 United Airlines Seattle — Chicago	4h	Find flight from$100
11:45 pm — 5:48 am +1 day	11:45 pm — 5:48 am UA299 United Airlines Seattle — Chicago	4h 3m	Find flight from$125
11:48 pm — 5:51 am +1 day	11:48 pm — 5:51 am UA1180 United Airlines Seattle — Chicago	4h 3m	Find flight from$101
1:55 pm — 8:10 pm	1:55 pm — 8:10 pm UA1298 United Airlines Seattle — Chicago	4h 15m	Find flight from$100
1:55 pm — 8:11 pm	1:55 pm — 8:11 pm UA2627 United Airlines Seattle — Chicago	4h 16m	Find flight from$159
4:55 pm — 10:55 pm	4:55 pm — 10:55 pm UA1951 United Airlines Seattle — Chicago	4h	Find flight from$100
5:26 pm — 11:33 pm	5:26 pm — 11:33 pm UA1340 United Airlines Seattle — Chicago	4h 7m	Find flight from$126
7:00 am — 1:15 pm	7:00 am — 1:15 pm UA2618 United Airlines Seattle — Chicago	4h 15m	Find flight from$100
7:00 am — 1:14 pm	7:00 am — 1:14 pm UA1617 United Airlines Seattle — Chicago	4h 14m	Find flight from$105
7:00 am — 1:14 pm	7:00 am — 1:14 pm UA1502 United Airlines Seattle — Chicago	4h 14m	Find flight from$161
12:43 pm — 11:59 pm	12:44 pm — 4:35 pm UA1417 United Airlines Seattle — Denver 3h 58m stop 8:50 pm — 0:25 am UA377 United Airlines Denver — Chicago	9h 16m including layover	Find flight from$135
12:52 pm — 11:12 pm	12:52 pm — 3:07 pm UA1482 United Airlines Seattle — San Francisco 1h 48m stop 4:55 pm — 11:12 pm UA1482 United Airlines San Francisco — Chicago	8h 20m including layover	Find flight from$109
1:09 pm — 11:15 pm	1:09 pm — 9:15 pm UA2131 United Airlines Seattle — Washington D.C. 55m stop 10:10 pm — 11:15 pm UA1738 United Airlines Washington D.C. — Chicago	8h 6m including layover	Find flight from$128
2:24 pm — 10:34 pm	2:24 pm — 6:15 pm UA2859 United Airlines Seattle — Denver 45m stop 7:00 pm — 10:34 pm UA2258 United Airlines Denver — Chicago	6h 10m including layover	Find flight from$117
2:24 pm — 0:30 am +1 day	2:24 pm — 6:15 pm UA2859 United Airlines Seattle — Denver 2h 40m stop 8:55 pm — 0:30 am UA377 United Airlines Denver — Chicago	8h 6m including layover	Find flight from$133
3:23 pm — 0:47 am +1 day	2:29 pm — 4:45 pm UA325 United Airlines Seattle — San Francisco 49m stop 6:28 pm — 0:45 am UA2117 United Airlines San Francisco — Chicago	7h 24m including layover	Find flight from$128
3:45 pm — 11:59 pm	3:25 pm — 7:11 pm UA757 United Airlines Seattle — Denver 59m stop 8:57 pm — 0:29 am UA377 United Airlines Denver — Chicago	6h 14m including layover	Find flight from$128
5:07 am — 2:55 pm	5:00 am — 8:43 am UA2269 United Airlines Seattle — Denver 2h 27m stop 11:25 am — 3:05 pm UA2865 United Airlines Denver — Chicago	7h 48m including layover	Find flight from$128
6:45 am — 6:52 pm	6:25 am — 9:20 am UA2127 United Airlines Seattle — Los Angeles 2h 57m stop 12:37 pm — 6:55 pm UA1069 United Airlines Los Angeles — Chicago	10h 7m including layover	Find flight from$117
6:45 am — 5:10 pm	6:45 am — 9:29 am UA1681 United Airlines Seattle — Los Angeles 1h 23m stop 10:52 am — 5:10 pm UA2113 United Airlines Los Angeles — Chicago	8h 25m including layover	Find flight from$128
8:57 am — 5:05 pm	8:57 am — 12:43 pm UA1359 United Airlines Seattle — Denver 42m stop 1:25 pm — 5:05 pm UA617 United Airlines Denver — Chicago	6h 8m including layover	Find flight from$117
8:57 am — 6:24 pm	8:57 am — 12:43 pm UA1359 United Airlines Seattle — Denver 2h 1m stop 2:44 pm — 6:24 pm UA1023 United Airlines Denver — Chicago	7h 27m including layover	Find flight from$117
9:50 am — 9:18 pm	9:50 am — 12:09 pm UA1470 United Airlines Seattle — San Francisco 2h 46m stop 2:55 pm — 9:18 pm UA1791 United Airlines San Francisco — Chicago	9h 28m including layover	Find flight from$117

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

*Departure and arrival times are local. Last updated on 07/03/2025

Flight Information

There are 14 flights by United Airlines from Seattle to Chicago every week with departures from Seattle-Tacoma Intl, Boeing Field International Airport, Kenmore Air Harbor SPB. All flights arrive at Chicago FSS, Midway, O'Hare International, Chicago NAS, Merrill C Meigs (closed), Dupage County, Pal-Waukee.

Departures start from 0:20 am to 9:50 am. Nonstop flight is 4h. The time difference between Seattle and Chicago is 2h.

The fastest flight 4h
Average flight time 4h 12m
The earliest flight 0:20 am
The latest flight 9:50 am
Distance 1732 ml

The cheapest months for traveling to Chicago are september (from 134 $), august (from 135 $), october (from 139 $).

The most expensive and popular months are june (from 172 $), july (from 141 $), may (from 140 $).

The cheapest flight by United Airlines that our users were able to find is $100. This airfare is economy class on one-way UA2671 flight for September 27, 2025 leaving Seattle-Tacoma Intl in Seattle at 10:55 am, 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 Seattle to Chicago:

Other Popular Airlines on the Route

Besides United Airlines there are other 6 airline carriers between Seattle and Chicago. Please review schedules and prices from the most popular airlines to find the best airfare deals from Seattle to Chicago.

Nonstop flights

There are 30 direct flights every day from Seattle. Airlines and fares are below:

AS - Alaska Airlines

from $68

Find
HA - Hawaiian Airlines

from $65

Find

See more direct flights

Connecting Flights

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

AS - Alaska Airlines

from $101

Find
F9 - Frontier Airlines

from $80

Find
SY - Sun Country Airlines

from $105

Find
TK - Turkish Airlines

from $1302

Find
HA - Hawaiian Airlines

from $93

Find
NK - Spirit Airlines

from $96

Find

See more connecting flights

How to book an air ticket yourself?

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