Seattle to Chicago Flights SEA → ORD

Seattle–Tacoma International Airport → Chicago O'Hare International Airport

🇺🇸 Seattle, US → 🇺🇸 Chicago, US

The Seattle to Chicago route connects Seattle–Tacoma International Airport (SEA) in US with Chicago O'Hare International Airport (ORD) in US. This medium-haul flight covers approximately 1718 miles (2765 km) with a typical flight time of 3h 36m. This route is served by 8 airlines: Alaska Airlines, Republic, American Airlines and others. AirportRoutes has tracked 8 daily flights on this route.

Departure Airport

Seattle–Tacoma International Airport

ICAO Code:: KSEA
IATA Code:: SEA
City:: 🇺🇸 Seattle
Country:: US
Elevation:: 433 ft

Destination Airport

Chicago O'Hare International Airport

ICAO Code:: KORD
IATA Code:: ORD
City:: 🇺🇸 Chicago
Country:: US
Elevation:: 680 ft

Operators

Daily Flights

1718

Miles

3h 36m

Flight Duration

Route Map

Operating Airlines

Airline	ICAO	IATA
Alaska Airlines	`ASA`	`AS`
Republic	`RPA`	`YX`
American Airlines	`AAL`	`AA`
China Cargo	`CKK`	`CK`
United	`UAL`	`UA`
Delta Air Lines	`DAL`	`DL`
Envoy Air	`ENY`	`MQ`
Silk Way West	`AZG`	`7L`

Flight Schedule Pattern

Day	Flights Observed	Frequency
Monday	26	17%
Tuesday	23	15%
Wednesday	20	13%
Thursday	20	13%
Friday	21	14%
Saturday	16	10%
Sunday	27	18%

Pattern Analysis

8 Daily Flights:

CKK227 ASA410 DAL2108 ASA356 ASA429 AAL1924 DAL2055 DAL2299

Data Points: 153
API observations used to build this analysis

Weekdays: 110 flights
Weekend: 43 flights

Business Route More active on weekdays

All Flight Routes

8 Routes

Note: This table shows aggregated route data by airline. Each airline may operate multiple daily flights at different times. See the "Spotted Departure Times" section below for all observed departure times.

Airline	Flight Numbers	Aircraft Type	Typical Time	Days Active	Last Seen	Status
Alaska Airlines `ASA` / `AS`	ASA410 ASA356 ASA429	B738	06:00 6:00 AM (Representative)	M T W T F S S	Feb 12, 2026	Active
American Airlines `AAL` / `AA`	AAL1924	B738	11:42 11:42 AM (Representative)	M T W T F S S	Nov 30, 2025	Active
China Cargo `CKK` / `CK`	CKK227 DAL2055	B77L	06:00 6:00 AM (Representative)	M T W T F S S	Feb 10, 2026	Active
Delta Air Lines `DAL` / `DL`	DAL2108 DAL2299	BCS1	17:55 5:55 PM (Representative)	M T W T F S S	Dec 11, 2025	Active
Envoy Air `ENY` / `MQ`	-	A321	-	M T W T F S S	Sep 30, 2025	Active
Republic `RPA` / `YX`	-	B738	10:39 10:39 AM (Representative)	M T W T F S S	Nov 27, 2025	Active
Silk Way West `AZG` / `7L`	-	B77L	-	M T W T F S S	Nov 14, 2025	Active
United `UAL` / `UA`	-	A21N	-	M T W T F S S	Nov 11, 2025	Active

Total Routes: 8

Active Routes: 8

Unique Airlines: 8

Aircraft Types: 8

Spotted Departure Times

Departure Time	Operator	ICAO	IATA
06:00 6:00 AM	Alaska Airlines	`ASA`	`AS`
06:00 6:00 AM	China Cargo	`CKK`	`CK`
10:39 10:39 AM	Republic	`RPA`	`YX`
11:42 11:42 AM	American Airlines	`AAL`	`AA`
17:55 5:55 PM	Delta Air Lines	`DAL`	`DL`

Time Information

Times are shown in the departure airport's local timezone (KSEA - America/Los_Angeles).

Total Departure Times: 5

Time Range:
06:00 - 17:55

These are typical departure times observed from actual flights. Times may vary by season and schedule changes.