flight_takeoff ORD → SEA

Cheap Flights from Chicago to Seattle

Compare fares on the medium-haul flight from Chicago to Seattle — a northwestbound route of about 1,716 miles, typically flown nonstop in around 3h 55m.

straighten

Distance

1,716 mi

2,762 km

schedule

Est. flight time

3h 55m

nonstop

flight

Nonstop service

Available

3 carriers

language

Time difference

2 hours behind

Seattle

Flying from Chicago to Seattle

Flights from Chicago O'Hare International Airport (ORD) to Seattle Tacoma International Airport (SEA) cover roughly 1,716 miles (2,762 km) on a northwestbound heading, a nonstop flight of about 3h 55m. The route crosses 2 time zones — Seattle is 2 hours behind Chicago. It's served by 3 airlines.

Lets Fly Travel compares live fares across hundreds of airlines to find the best deal on this route — and every booking is reviewed by a real travel agent before ticketing.

Airlines on this route

Carriers that have operated nonstop service between ORD and SEA include:

flightAlaska Airlines flightAmerican Airlines flightUnited Airlines

Airline availability and fares change over time — search your dates for current options.

Best time to fly Chicago to Seattle

Fare patterns and travel conditions vary by season. Here's what to expect on the ORD–SEA route throughout the year.

Jan–Feb

Post-holiday lull means some of the lowest fares of the year on the Chicago–Seattle route. Great for a spontaneous escape.

Mar–May

Spring break drives demand on transcontinental routes like ORD–SEA. Book at least 4–6 weeks ahead for the best prices.

Jun–Aug

Summer is the busiest season for Chicago to Seattle travel. Mid-week flights (Tue/Wed) typically undercut weekend fares by 15–25%.

Sep–Oct

Fares often drop after Labor Day. September and October are among the cheapest months to fly this medium-haul flight.

Nov–Dec

Thanksgiving week and the Christmas/New Year period see significant fare increases. Flexibility on exact dates can save considerably.

flight_land Arriving at

Seattle Tacoma International Airport

Seattle is served by Seattle Tacoma International Airport (IATA: SEA , ICAO: KSEA). Allow time for baggage claim and ground transportation after landing.

IATA Code

SEA

Flight Time

~3h 55m

Distance

1,716 mi

tips_and_updates Arrival tips

›Check in online to save time at the airport.
›Arrive 2 hours before departure.
›Compare fares across several nearby dates for best value.

Chicago to Seattle — FAQs

How long is the flight from Chicago to Seattle? expand_more

A nonstop flight from Chicago (ORD) to Seattle (SEA) takes approximately 3h 55m, covering a distance of about 1716 miles (2762 km). Actual flight time varies with aircraft, routing and winds.

Which airlines fly from Chicago to Seattle? expand_more

Airlines that have operated nonstop service on the ORD–SEA route include Alaska Airlines, American Airlines, United Airlines. Use our search to compare current carriers, schedules and fares.

Is there a nonstop flight from Chicago to Seattle? expand_more

Yes. The ORD–SEA route has nonstop service. Nonstop availability can vary by season and day of week, so check live results for your dates.

How far is Seattle from Chicago? expand_more

The distance from Chicago (ORD) to Seattle (SEA) is about 1716 miles (2762 km) as the crow flies.

What is the time difference between Chicago and Seattle? expand_more

Seattle is 2 hours behind Chicago. Factor the time change into your arrival and connection planning.

When is the best time to book flights from Chicago to Seattle? expand_more

For domestic routes like Chicago to Seattle, booking about 1–3 months ahead and choosing mid-week departures usually finds the best prices. Avoid peak Friday and Sunday travel where possible.