£131 Cheap Flights from Seattle (SEA) to Chicago (ORD)

View £131 flight on Tue, 14 Jul 2026Opens in a new window

Popular airlines from Seattle-Tacoma International Airport (SEA) to Chicago O'Hare International Airport (ORD)

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Cheap Flights from Seattle (SEA) to Chicago (ORD)

Prices were available within the past 7 days and start at £131 for one-way flights and £262 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Wed, 13 May - Thu, 14 May
SEA
Seattle
ORD
Chicago
£262 Return, found 4 days ago
£262
Return
found 4 days ago
Select American Airlines flight, departing Wed, 13 May from Seattle to Chicago, returning Thu, 14 May, priced at £262 found 4 days ago
American Airlines
Wed, 13 May - Thu, 14 May
SEA
Seattle
ORD
Chicago
£263 Return, found 4 days ago
£263
Return
found 4 days ago
Select American Airlines flight, departing Wed, 13 May from Seattle to Chicago, returning Thu, 14 May, priced at £263 found 4 days ago
Delta
Mon, 8 Jun - Sat, 20 Jun
SEA
Seattle
ORD
Chicago
£263 Return, found 1 day ago
£263
Return
found 1 day ago
Select Delta flight, departing Mon, 8 Jun from Seattle to Chicago, returning Sat, 20 Jun, priced at £263 found 1 day ago
Alaska Airlines
Tue, 2 Jun - Tue, 9 Jun
SEA
Seattle
ORD
Chicago
£269 Return, found 10 hours ago
£269
Return
found 10 hours ago
Select Alaska Airlines flight, departing Tue, 2 Jun from Seattle to Chicago, returning Tue, 9 Jun, priced at £269 found 10 hours ago
Delta
Wed, 13 May - Thu, 14 May
SEA
Seattle
ORD
Chicago
£269 Return, found 4 days ago
£269
Return
found 4 days ago
Select Delta flight, departing Wed, 13 May from Seattle to Chicago, returning Thu, 14 May, priced at £269 found 4 days ago
Alaska Airlines
Tue, 2 Jun - Tue, 9 Jun
SEA
Seattle
ORD
Chicago
£270 Return, found 10 hours ago
£270
Return
found 10 hours ago
Select Alaska Airlines flight, departing Tue, 2 Jun from Seattle to Chicago, returning Tue, 9 Jun, priced at £270 found 10 hours ago
Alaska Airlines
Tue, 2 Jun - Tue, 9 Jun
SEA
Seattle
ORD
Chicago
£276 Return, found 10 hours ago
£276
Return
found 10 hours ago
Select Alaska Airlines flight, departing Tue, 2 Jun from Seattle to Chicago, returning Tue, 9 Jun, priced at £276 found 10 hours ago
Alaska Airlines
Tue, 2 Jun - Tue, 9 Jun
SEA
Seattle
ORD
Chicago
£277 Return, found 10 hours ago
£277
Return
found 10 hours ago
Select Alaska Airlines flight, departing Tue, 2 Jun from Seattle to Chicago, returning Tue, 9 Jun, priced at £277 found 10 hours ago
United
Wed, 13 May - Thu, 14 May
SEA
Seattle
ORD
Chicago
£336 Return, found 4 days ago
£336
Return
found 4 days ago
Select United flight, departing Wed, 13 May from Seattle to Chicago, returning Thu, 14 May, priced at £336 found 4 days ago
JetBlue Airways
Fri, 29 May - Mon, 1 Jun
SEA
Seattle
ORD
Chicago
£364 Return, found 13 hours ago
£364
Return
found 13 hours ago
Select JetBlue Airways flight, departing Fri, 29 May from Seattle to Chicago, returning Mon, 1 Jun, priced at £364 found 13 hours ago

Alternative airports near Chicago

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to O'Hare Intl. ORD. Cheapest option available. Average driving time to city centre is 23 minutes. Flights from £263
ORD
O'Hare Intl.
Cheapest
Average driving time to city centre23 min
Flights from £263

Find the cheapest month to fly from Seattle (SEA) to Chicago (ORD)

April is typically the cheapest month to fly

From £136 - £275 per traveller.

Frequently asked questions

How much does a flight from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Chicago, IL (ORD-O'Hare Intl.) cost?
One-way flights typically cost between £193 and £1,049 and return flights often range between £484 and £2,411. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when Anaa (AAA) to Toronto, ON (YYZ-Pearson Intl.) ticket fares go up or down.
What is the cheapest month to fly from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Chicago, IL (ORD-O'Hare Intl.)?
January is typically the cheapest month to fly from Seattle - Tacoma Intl. (SEA) to O'Hare Intl. (ORD), with average return fares of approximately £356. This is about 18% lower than the average price throughout the year. January sees lower prices because it falls after the holiday travel rush, when demand drops and airlines compete for bookings. Other cheap months to fly from Seattle - Tacoma Intl. (SEA) to O'Hare Intl. (ORD) include February and September.
Which airlines fly direct from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Chicago, IL (ORD-O'Hare Intl.)?
Enter SEA to ORD and your travel dates, then apply the 'Nonstop' filter to see only direct flights.
How do I find cheap flights from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Chicago, IL (ORD-O'Hare Intl.)?
To find a cheap flight from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Chicago, IL (ORD-O'Hare Intl.), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best airline to fly with from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Chicago, IL (ORD-O'Hare Intl.)?
The best airline to fly with from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Chicago, IL (ORD-O'Hare Intl.) will differ from traveller to traveller. If you like to fly early, UA offers early morning flights. If price is the most important factor, AA typically offers the lowest fares. AS offers the most daily flights from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Chicago, IL (ORD-O'Hare Intl.), which is great if flexibility is what you value most. The best carrier for this journey could also be the one you have a loyalty membership with, as flying with that airline or another airline within the same alliance could help you collect points or enjoy lounge access.
What is the best time to fly from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Chicago, IL (ORD-O'Hare Intl.)?
Based on booking data from the past year, the cheapest months to fly from Seattle - Tacoma Intl. (SEA) to O'Hare Intl. (ORD) are typically January and September, with average return flights around £356. While these months offer great value, they aren't the most popular times to travel. The busiest months are usually July and June, which means you'll find plenty of flight options then, but prices might be higher. To balance good prices with a decent selection of flights, consider booking during the shoulder seasons around these times.
How many flights per day from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Chicago, IL (ORD-O'Hare Intl.)?
When flying from Seattle - Tacoma Intl. (SEA) to O'Hare Intl. (ORD), you'll find approximately 15 nonstop flights per day. For even more choice, look at flights that include layovers, as there are around 109 connecting flights daily. Some common connection points include San Francisco Intl. (SFO), Denver Intl. (DEN), and Dallas-Fort Worth Intl. (DFW).
What is the earliest flight from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Chicago, IL (ORD-O'Hare Intl.)?
The earliest flight from Seattle - Tacoma Intl. (SEA) to O'Hare Intl. (ORD) typically departs at approximately 12:05 AM local time, operated by American Airlines. This is a seasonal service active in February and March. An early departure like this can help maximise your time at your destination. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What day of the week has the most flights from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Chicago, IL (ORD-O'Hare Intl.)?
You'll typically find the most flights from Seattle - Tacoma Intl. (SEA) to O'Hare Intl. (ORD) on a Friday, with around 90 flights available. This gives you plenty of options for your travel plans. Major airlines on this route include Alaska Airlines, United Airlines, and American Airlines. Friday offers notably more flight options compared to other days of the week.
What are the most popular departure times for flights from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Chicago, IL (ORD-O'Hare Intl.)?
The most popular departure times for flights from Seattle - Tacoma Intl. (SEA) to O'Hare Intl. (ORD) are in the early morning, from 6am to 9am. About 31% of passengers prefer this time. Many major carriers, including Delta Air Lines, American Airlines and Alaska Airlines, offer flights during this window. This timing works well because you can get an early start to your travel day and arrive in Chicago with plenty of time for your activities.
How long does it take to fly from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Chicago, IL (ORD-O'Hare Intl.)?
Flying nonstop from SEA to ORD takes around 4 hours 20 minutes, with the route covering approximately 1,716 miles. Flights with a layover typically take 4 hours 30 minutes longer than direct options. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Chicago, IL (ORD-O'Hare Intl.)?
Select the "Business class" and "First class" filters when looking for SEA to ORD flights on Expedia. This is the easiest way to compare prices, routes and flight times for your trip.
How much is a business class flight from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Chicago, IL (ORD-O'Hare Intl.)?
A non-stop, one-way business class flight from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Chicago, IL (ORD-O'Hare Intl.) is usually around £974 - £1,284. Prices often fluctuate based on seasonality and how early you book. You may also be able to find a cheaper business class journey between Anaa (AAA) (AAA) to Toronto, ON (YYZ-Pearson Intl.) (YYZ) if you opt for a connecting flight.
How do I earn miles on a Seattle, WA (SEA-Seattle - Tacoma Intl.) to Chicago, IL (ORD-O'Hare Intl.) flight with Expedia?
It's easy to earn miles on a Seattle, WA (SEA-Seattle - Tacoma Intl.) to Chicago, IL (ORD-O'Hare Intl.) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia. *Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Chicago from Seattle - Tacoma Intl. (SEA)?
From Seattle - Tacoma Intl. (SEA), you can fly into O'Hare Intl. (ORD) and Midway Intl. (MDW) in Chicago. Some flights may connect through major hubs like McCarran Intl. (LAS), San Francisco Intl. (SFO), Sky Harbor Intl. (PHX) before reaching Chicago. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Chicago, IL (ORD-O'Hare Intl.) at the last minute?
Typically, booking a last minute flight from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Chicago, IL (ORD-O'Hare Intl.) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Seattle, WA (SEA-Seattle - Tacoma Intl.) to Chicago, IL (ORD-O'Hare Intl.) flight and hotel package?
Securing a Seattle, WA (SEA-Seattle - Tacoma Intl.) to Chicago, IL (ORD-O'Hare Intl.) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Chicago, IL (ORD-O'Hare Intl.)?
If you booked your Seattle, WA (SEA-Seattle - Tacoma Intl.) to Chicago, IL (ORD-O'Hare Intl.) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Seattle - Tacoma Intl.
Destination airport
O'Hare Intl.
Airlines serving
Alaska Airlines, JetBlue Airways
Return price
£258
Distance
2745 km
Average flight time
6 hours 5 mins

Book with confidence

Compare flights from Seattle to Chicago easily and book with confidence

For travelling on business or for pleasure, Expedia makes it easy to book your flights from Seattle to Chicago. Operating between them flights per day, 20 airlines cover the route. And fly direct, getting you to O'Hare Intl. in just hours. If you have a preferred carrier, use our advanced search tool to find the right flight from Seattle - Tacoma Intl. to O'Hare Intl..  

To make things even better, in the advanced search, you can also choose to fly economy, premium economy, business or first class, select your maximum number of stops, and pick your preferred departure and arrival time. You can also opt for refundable and direct flights. 

Grab a great deal on your flight from Seattle - Tacoma Intl. (SEA) to O'Hare Intl. (ORD)

The easiest way to view the best deals on flights from Seattle to Chicago today is to enter your travel dates and hit search. From here, you can sort your results by price to see the cheapest flights first. Right now, return flights from Seattle - Tacoma Intl. to O'Hare Intl. start at just £262 and range up to £364.  

To find an even better deal, try  

  • being flexible on your dates – midweek flights can be cheaper
  • looking for other airports near Seattle and Chicago
  • booking your flight during May, the cheapest month on this route
  • varying your flight times – early morning and late at night are sometimes cheaper 

Why you should book your Seattle to Chicago flight with Expedia!

We cater for all flight types, cabin classes and airlines. So whether you’re booking flights from Seattle - Tacoma Intl. to O'Hare Intl. for a budget break or a business trip with a bit of pleasure thrown in, we make it easy to secure the seat that’s right for you.  

Thanks to our supersized inventory that offers great choice all in one place, you know you’ll get a great deal with Expedia. Especially if you bundle your flight together with your hotel, you will unlock amazing savings. For added peace of mind, you can choose flexible bookings or filter to find refundable options, so you won’t pay a fee to change your flight.  

Compare flights from Seattle to Chicago easily and book with confidence

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*Available to Expedia members.