C$ 204 Find Cheap Flights from Chicago to Seattle – Compare and Save

These are the earliest and latest flight times available from Chicago O'Hare Intl Airport to Seattle:

• Earliest: departs at 6:00 am and lands at 10:52 am
• Latest: departs at 10:00 pm and lands at 2:52 am.

The flight takes about 4h 52m.

Only Economy Class is available on flights from Chicago O'Hare Intl Airport to Seattle.

A direct flight from Chicago O'Hare Intl Airport to Seattle takes 4h 52m, covering 4,442 km.

No, a passport is not required for this domestic route, but you will need another form of identification, such as a driver's licence.

Round-trip flights from Chicago O'Hare Intl Airport to Seattle range from C$ 418 to C$ 635, with an average of C$ 524 over the past 12 months. Anything below C$ 418 counts as a good deal.

Last-minute fares on this route (booked within two weeks of departure) run 32% above the C$ 524 route average. Book 26 weeks before departure for the lowest fares.

On this route, layover flights are cheaper than direct options on average. Layover fares average C$ 346 round-trip via Denver Intl (DEN), compared to C$ 525 for direct.

There is no standard. Checked bag policies vary by airline on this route. Most carriers charge C$ 49–C$ 140 for the first checked bag in economy. Premium fares and elite status bookings typically include a free checked bag.

The Boeing 737-900 family is used most often on this route, operated mainly by United Airlines and Delta. Other aircraft seen on the route include Boeing 737-800 variants.

Morning is the busiest departure period on Chicago O'Hare Intl Airport to Seattle flights, with 41% leaving in that window. Afternoon departures account for 27%, Evening flights for 26%, and Night flights for 6%.

Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about C$ 373 to C$ 1,440. That means the highest observed fare was about 4x higher than the lowest one.

Three airlines offer in-flight Wi-Fi on Chicago O'Hare Intl Airport to Seattle flights:

• Alaska Airlines
• American Airlines
• Delta

Pricing varies by airline and fare class. Some plans are included with the ticket or loyalty program; others are paid add-ons priced by flight length.

One-way fares from Chicago O'Hare Intl Airport to Seattle are currently lower than usual. Average one-way flight prices are about C$ 223, which is 30% below the typical average for this route.

Seattle/Tacoma Intl Airport (SEA) hosts 5 major car rental companies, with daily rates averaging C$ 84 for economy cars. Top options include:

• Europcar
• Fox
• Thrifty
• Budget
• Dollar

Flights from Chicago O'Hare Intl Airport to Seattle usually depart from Chicago O'Hare Intl (ORD) and arrive at Seattle/Tacoma Intl (SEA).

One-stop flights from Chicago O'Hare Intl Airport to Seattle most commonly connect through:

• Denver Intl (DEN) – 63% of one-stop connections
• Las Vegas Harry Reid Intl (LAS) – 19% of one-stop connections
• Los Angeles (LAX) – 12% of one-stop connections
• Minneapolis St Paul (MSP) – 5% of one-stop connections

Yes. Flexible dates can save you up to 12% on flights from Chicago O'Hare Intl Airport to Seattle. Wednesday is the cheapest departure day at C$ 505 round-trip on average, while Sunday is the most expensive at C$ 568, a difference of C$ 63.

KAYAK's flexible dates feature shows options up to three days before and after your selected dates, making it easier to compare nearby fares.

4 airlines operate flights between Chicago O'Hare Intl Airport and Seattle. The airlines offering direct flights on this route include:

• American Airlines
• Alaska Airlines
• United Airlines
• Delta

Flying via Portland (PDX) gives the shortest average 1-stop total travel time at 6h 43m, compared with 13h 39m via Minneapolis St Paul (MSP) and 15h 16m via Denver Intl (DEN).

Seattle is 2 hours behind Chicago O'Hare Intl Airport (Pacific Time vs Central Time). Plan for the time shift when scheduling connections or first-day activities.

Some of the most popular sights in Seattle are Lumen Field, T-Mobile Park, and Climate Pledge Arena. These are among the most viewed places in Seattle on KAYAK.

Among airlines operating Chicago O'Hare Intl Airport to Seattle flights:

• Alaska Airlines: offers extra legroom; offers free seat selection
• United Airlines: offers extra legroom; offers free seat selection
• American Airlines: offers extra legroom; offers free seat selection
• Delta: offers extra legroom; offers free seat selection

Extra legroom and free seat selection availability depends on fare class and route.

Here are some options for this route, based on selected ticket types and cabin classes:

• Alaska Airlines: a carry-on bag and a checked bag in Economy Class
• United Airlines: a carry-on bag and a checked bag in Economy Class
• American Airlines: a carry-on bag and a checked bag in Economy Class

Baggage allowance can vary by ticket type, cabin class, route, and airline, so always check the fare details before booking.