Chicago To Seattle Flight Time & Schedules

How Much Time Does It Take to Fly from Chicago to Seattle?

A nonstop flight from Chicago to Seattle generally takes around 4 hours 10 minutes. The exact duration can vary slightly depending on the airline, aircraft type, weather conditions, air traffic and the route taken across the United States.

Direct flights operate from Chicago O’Hare International Airport (ORD) to Seattle–Tacoma International Airport (SEA). O’Hare is Chicago’s main international airport and one of the busiest airports in the United States, while Seattle–Tacoma International Airport is the primary airport serving the Seattle metropolitan area.

Flights with one connection usually take around 9 hours 45 minutes via Hartsfield–Jackson Atlanta International Airport (ATL). The total journey time depends on the connection duration, airline schedule and time spent between flights.

Passengers travelling from Chicago should compare the complete itinerary, including departure airport, arrival airport, connection time and overall journey duration, before selecting a flight.

Approximate Journey Time from Chicago to Seattle

Nonstop services from Chicago to Seattle usually take approximately 4 hours 10 minutes. Flight schedules may differ slightly depending on the airline, aircraft operations, wind conditions and air traffic along the route.

Connecting flights generally require more travel time. A common one-stop option through Hartsfield–Jackson Atlanta International Airport (ATL) takes around 9 hours 45 minutes from departure to arrival, including the connection period.

Direct flights from Chicago O’Hare International Airport (ORD) to Seattle–Tacoma International Airport (SEA) normally take around 4 hours 10 minutes nonstop.

Seattle–Tacoma International Airport is the main commercial airport serving Seattle and the surrounding Pacific Northwest region. It provides connections to domestic destinations across the United States as well as international routes.

Travelers can also choose connecting flights between Chicago and Seattle. A commonly available one-stop route connects through Hartsfield–Jackson Atlanta International Airport (ATL).

The total journey time for this routing is approximately 9 hours 45 minutes, including the time required for the connection in Atlanta.

Connecting flights may be useful when nonstop schedules do not match a passenger’s preferred travel time or when comparing different airline options.

Estimated Chicago to Seattle Travel Time by Airport

Arrival Airport	Route Code	Estimated Flight Time
Seattle–Tacoma International Airport (SEA)	ORD–SEA	Around 4 hrs 10 mins nonstop
Seattle–Tacoma International Airport (SEA)	ORD–ATL–SEA	Around 9 hrs 45 mins with one stop via Hartsfield–Jackson Atlanta International Airport

These timings are approximate and may vary depending on the airline, aircraft schedule, weather conditions and connection time.

Airline Choices for Chicago to Seattle Flights

Alaska Airlines

American Airlines

Delta Air Lines

United Airlines

Time Difference Between Chicago and Seattle

Seattle is two hours behind Chicago. Chicago follows Central Time, while Seattle follows Pacific Time.

For example, when it is 10:00 AM in Chicago, it is 8:00 AM in Seattle.

Both cities observe daylight saving time, so the two-hour difference remains consistent throughout the year. Flight departure and arrival times are displayed according to the local time zone of each airport, so passengers should consider the time difference when planning their journey.

Explore More Flight Times & Routes

Planning beyond this route? Explore more flight times, distances, and travel durations using our tools below.

Start with our Flight Time Calculator to estimate journey times worldwide, or browse average travel times from your departure city using the Chicago Flight Times.