$154 Find Cheap Flights from Seattle to Chicago O'Hare Airport - Compare and Save

Mothers traveling with their babies or toddlers can use the seven nursing rooms at Seattle-Tacoma International Airport. The rooms are located at Gates A9, C10, D10, D23, N2, and Gate S along the mezzanine level. Use can also use the space in the North Main Terminal at the train station. With well equipped sinks, a power outlet, adjustable light, changing tables, and private breastfeeding units, O'Hare has four designated rooms in Terminals 1, 2, 3, and 5.

The Seattle-Tacoma International Airport (SEA) is fitted with special access facilities to cater to passenger safety and quickly move from one point to another in the airport. For instance, buildings in the airport are equipped with escalators and ramps to make it easy for passengers to use wheelchairs. Access points are also available at the terminals. In addition, the airport has special toilets designed for travelers with less mobility.

Hilton Chicago O'Hare Airport Hotel is the only onsite hotel, across Terminal 2.However, if you miss a room in this hotel, the Aloft Chicago O'Hare hotel is another option near the airport. Double Tree, Embassy Suites, and Crowne Plaza are other recommended hotels near the airport.

Most airlines tend to have layovers at their hub airports. For instance, Delta Air Lines has one layover at Minneapolis-Saint Paul International Airport (MSP) or Salt Lake City International Airport (SLC). American Airlines has its layover at either Charlotte Douglas International Airport (CLT), Dallas/Fort Worth International Airport (DFW), or Phoenix Sky Harbor International Airport (PHX).

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

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

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

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

• American Airlines
• Alaska Airlines
• United Airlines
• Delta

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

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

• Alaska Airlines: a cabin bag and a checked bag in Economy Class
• Delta: a cabin bag and a checked bag in Economy Class
• American Airlines: a cabin bag and a checked bag in Economy Class

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

Three cabin classes are available on flights from Seattle to Chicago O'Hare Intl Airport:

• Economy Class
• Business Class
• First Class

On this route, layover flights are cheaper than nonstop options on average. Layover fares average $208 round-trip via Los Angeles (LAX), compared to $360 for nonstop.

There is no standard. Checked-bag policies vary by airline on this route. Most carriers charge $35–$100 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 Delta and United Airlines. Other aircraft seen on the route include Boeing 737-800 variants.

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

• Denver Intl (DEN) - 71% of one-stop connections
• Minneapolis St Paul (MSP) - 17% of one-stop connections
• Las Vegas Harry Reid Intl (LAS) - 4% of one-stop connections
• Los Angeles (LAX) - 4% of one-stop connections

Denver Intl (DEN) handles the largest share of one-stop connections on this route.

Yes. Being flexible with your travel dates can save you up to 9% on the Seattle to Chicago O'Hare Intl Airport route. Wednesday is the cheapest departure day at $354 round-trip on average, while Monday is the most expensive at $388, a difference of $34. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

Morning is the busiest departure period on Seattle to Chicago O'Hare Intl Airport flights, with 51% of flights leaving in that window. Evening departures account for 18%, night flights for 18%, and afternoon flights for 13%.

Some of the most popular sights in Chicago O'Hare Intl Airport are Magnificent Mile, Grant Park and River North. These are among the most viewed places in Chicago O'Hare Intl Airport on KAYAK.

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

• Earliest: departs at 12:16 am and lands at 4:29 am
• Latest: departs at 11:59 pm and lands at 4:12 am.

The flight takes about 4h 13m.

Last-minute fares on this route - booked within 2 weeks of departure - run 42% above the route average of $358. Book 13 weeks before departure for the lowest fares.

A nonstop flight from Seattle to Chicago O'Hare Intl Airport takes 4h 13m, covering 1,715 miles.

No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID, or another TSA-accepted form of identification.

Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $277 to $1,453. That means the highest observed fare was about 5x higher than the lowest one.

One-way fares from Seattle to Chicago O'Hare Intl Airport are currently lower than usual. Average one-way flight prices are about $160, which is 27% below the typical average for this route.

Flying via Dallas/Fort Worth (DFW) gives the shortest average 1-stop total travel time at 7h 32m, compared with 9h 48m via Minneapolis St Paul (MSP) and 14h 03m via Denver Intl (DEN).

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

Chicago O'Hare Intl Airport (ORD) hosts 5 major car rental companies, with daily rates starting from around $17 for economy cars. Top options include:
• Routes Car & Truck Rentals
• Europcar
• Hertz
• Dollar
• Ace

Round-trip flights from Seattle to Chicago O'Hare Intl Airport range from $282 to $452, with an average of $358 over the past 12 months. Anything below $282 counts as a good deal.

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

• Alaska Airlines
• Delta
• American Airlines
• JetBlue

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.