$248 Cheap Flights from Seattle to Chicago O'Hare International in 2025

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Flight deals from Seattle to Chicago O'Hare International

Looking for a cheap last-minute deal or the best return flight from Seattle to Chicago O'Hare International? Find the lowest prices on one-way and return tickets right here.

Chicago.$248 per passenger.Departing Sat, 10 May, returning Wed, 14 May.Return flight with Hawaiian Airlines and Alaska Airlines.Outbound direct flight with Hawaiian Airlines departs from Seattle / Tacoma International on Sat, 10 May, arriving in Chicago O'Hare International.Inbound direct flight with Alaska Airlines departs from Chicago O'Hare International on Wed, 14 May, arriving in Seattle / Tacoma International.Price includes taxes and charges.From $248, select.

Chicago.$256 per passenger.Departing Sat, 31 May, returning Sat, 7 Jun.Return flight with Hawaiian Airlines.Outbound direct flight with Hawaiian Airlines departs from Seattle / Tacoma International on Sat, 31 May, arriving in Chicago O'Hare International.Inbound direct flight with Hawaiian Airlines departs from Chicago O'Hare International on Sat, 7 Jun, arriving in Seattle / Tacoma International.Price includes taxes and charges.From $256, select.

Chicago.$257 per passenger.Departing Tue, 3 Jun, returning Tue, 3 Jun.Return flight with Hawaiian Airlines.Outbound direct flight with Hawaiian Airlines departs from Seattle / Tacoma International on Tue, 3 Jun, arriving in Chicago O'Hare International.Inbound direct flight with Hawaiian Airlines departs from Chicago O'Hare International on Tue, 3 Jun, arriving in Seattle / Tacoma International.Price includes taxes and charges.From $257, select.

Chicago.$259 per passenger.Departing Wed, 3 Sep, returning Wed, 10 Sep.Return flight with Hawaiian Airlines.Outbound direct flight with Hawaiian Airlines departs from Seattle / Tacoma International on Wed, 3 Sep, arriving in Chicago O'Hare International.Inbound direct flight with Hawaiian Airlines departs from Chicago O'Hare International on Wed, 10 Sep, arriving in Seattle / Tacoma International.Price includes taxes and charges.From $259, select.

Chicago.$262 per passenger.Departing Wed, 13 Aug, returning Sat, 16 Aug.Return flight with Hawaiian Airlines.Outbound direct flight with Hawaiian Airlines departs from Seattle / Tacoma International on Wed, 13 Aug, arriving in Chicago O'Hare International.Inbound direct flight with Hawaiian Airlines departs from Chicago O'Hare International on Sat, 16 Aug, arriving in Seattle / Tacoma International.Price includes taxes and charges.From $262, select.

Chicago.$265 per passenger.Departing Tue, 14 Oct, returning Tue, 27 Jan.Return flight with Delta.Outbound direct flight with Delta departs from Seattle / Tacoma International on Tue, 14 Oct, arriving in Chicago O'Hare International.Inbound direct flight with Delta departs from Chicago O'Hare International on Tue, 27 Jan, arriving in Seattle / Tacoma International.Price includes taxes and charges.From $265, select.

Chicago.$265 per passenger.Departing Sat, 1 Nov, returning Tue, 2 Dec.Return flight with Delta.Outbound direct flight with Delta departs from Seattle / Tacoma International on Sat, 1 Nov, arriving in Chicago O'Hare International.Inbound direct flight with Delta departs from Chicago O'Hare International on Tue, 2 Dec, arriving in Seattle / Tacoma International.Price includes taxes and charges.From $265, select.

Chicago.$265 per passenger.Departing Wed, 24 Sep, returning Wed, 1 Oct.Return flight with Delta.Outbound direct flight with Delta departs from Seattle / Tacoma International on Wed, 24 Sep, arriving in Chicago O'Hare International.Inbound direct flight with Delta departs from Chicago O'Hare International on Wed, 1 Oct, arriving in Seattle / Tacoma International.Price includes taxes and charges.From $265, select.

Find the cheapest month to fly from Seattle to Chicago O'Hare International

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Seattle to Chicago O'Hare International flights are currently cheapest in May.

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Direct flights from Seattle to Chicago O'Hare International

Seattle to Chicago O'Hare International: Alternative routes

Compare routes from Seattle to Chicago below. You may find an airport to fly into that's cheaper, faster, or easier than Chicago O'Hare International.

Seattle to Chicago: Flight information

The things to know before you go.

Cheapest flight found	$248
Cheapest month to fly	May
Average flight time	4 hrs, 8 mins
Most popular airline	American Airlines
Average flights per week	511

Finding cheap flights from Seattle to Chicago O'Hare International: Frequently asked questions

How much are return flights from Seattle to Chicago O'Hare International?

The best price we found for a return flight from Seattle to Chicago O'Hare International is $248. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.

How long does it take to fly from Seattle to Chicago O'Hare International?

4 hours and 9 minutes is the average flight time from Seattle to Chicago O'Hare International.

Which airlines fly direct from Seattle to Chicago O'Hare International?

American Airlines, Qatar Airways and United fly direct from Seattle to Chicago O'Hare International.

How many flights are there a week from Seattle to Chicago O'Hare International?

As of April 2025, there are 511 flights per week flying from Seattle to Chicago O'Hare International.

When is the cheapest time to fly from Seattle to Chicago O'Hare International?

The cheapest month to fly from Seattle to Chicago O'Hare International is usually April 2025.

Which upcoming date is cheapest to fly from Seattle to Chicago O'Hare International Airport on?

After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Seattle to Chicago O'Hare International Airport on Saturday, 10 May 2025.

Can I get a direct flight from Seattle to Chicago O'Hare International Airport?

Yes – the average flight time is 4 hours and 9 minutes.

How can I find the best flight deal to Chicago O'Hare International?

We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Chicago O'Hare International but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.

When is the best time to book flights to Chicago?

We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Chicago is around 40 days in advance, so don’t leave your flight to the last minute.

Which is the cheapest airline to fly from Seattle to Chicago O'Hare International with?

The cheapest airline that flies to Chicago O'Hare International is Hawaiian Airlines .

Flying from Seattle to O'Hare International Airport (ORD): what you need to know

Get your trip started at Seattle-Tacoma International Airport (SEA), the main airport in Seattle. Look for flights from Seattle to O'Hare International Airport (ORD) that take off from this terminal.
4 hours 3 minutes is the time it takes on average for a direct flight from Seattle to O'Hare International Airport.
The timezone in Chicago is UTC-5, which is 2 hours ahead of Seattle. O'Hare International Airport is located in Chicago.
Seattle-Tacoma International Airport (SEA) to O'Hare International Airport (ORD) is the most popular route. There are 135 direct departures a week to choose from. If you have things to do before leaving, take the last flight with United at 23:59. Choose the first SEA to ORD departure with United at 00:28 if you want to get going earlier.
Your flight from Seattle to ORD won't wait if you're late, so get to the airport with time to spare. Arrive up to one hour in advance for domestic flights and two hours ahead when you're travelling internationally.
Popular months like July or holiday periods such as Christmas and New Year will mean bigger waits at check-in and security. Be on the safe side and get to the airport even earlier. Arriving two hours before domestic flights and up four hours ahead of international flights is wise.

Airports in Seattle

Seattle-Tacoma International Airport (SEA)

Seattle-Tacoma International Airport (SEA) provides a hassle-free way to reach your destination. Nonstop flights from Seattle to O'Hare International Airport (ORD) operate out of this terminal.
At SEA, there's a good selection of carriers that operate direct flights from Seattle to O'Hare International Airport, including:
The distance from central Seattle to SEA is around 23 kilometres. Use travel apps like Google Maps for the quickest route, whether you're driving or taking public transport.
Planning to catch an early flight from Seattle to O'Hare International Airport? Avoid the stress of rushing to the terminal (and enjoy a little extra shut-eye) by choosing one of these stays near Seattle-Tacoma International Airport:

Lake Union Sea Plane Base (LKE)

Lake Union Sea Plane Base (LKE) operates direct flights from Seattle to O'Hare International Airport (ORD).
When setting off from LKE, you'll have a choice of airlines that offer direct flights from Seattle to ORD. Book your favourite window (or aisle) seat with any of these:
LKE is about 3 kilometres from central Seattle. It takes 11 minutes or so to get to the airport by car from the city centre. Public transport takes roughly 23 minutes.
You're going on holiday, so why not extend it with an additional night away? Think about staying at one of these accommodation options near Lake Union Sea Plane Base the day before your flight from Seattle to ORD:

About O'Hare International Airport (ORD)

Book a hotel near ORD if you're taking a late flight from Seattle to O'Hare International Airport. Pick one of these accommodation options and skip the long transfer:

Getting from O'Hare International Airport (ORD) to central Chicago

From O'Hare International Airport, Chicago is approximately 40 kilometres away. It takes around 35 minutes to get to the centre driving.
It takes around 54 minutes to get there using public transport.

How to find the cheapest flights from Seattle to O'Hare International Airport (ORD)

For a one-way ticket from Seattle to O'Hare International Airport, $127 is the best price we've seen. You can also book a return flight starting from $248. These are the lowest fares right now but may change based on availability.
8 months is how far we recommend booking ahead to find flight tickets from Seattle to ORD.
Organise your trip for May. That's the cheapest month for tickets from Seattle to O'Hare International Airport. If you're flexible with your dates, use the 'Whole month' tool to find the best price across every month.
Sign into your online account or use the app to set up a Price Alert. We'll let you know right away if there's a deal you can't miss. It's simple to do, and it'll save you time searching for flight tickets from Seattle to ORD every day.
Tailor your flights with filters. Select your ideal arrival and departure times, airlines and total journey duration. You can also sort the results by 'Best,' 'Fastest' or 'Cheapest' flights from Seattle to O'Hare International Airport.

The best time to fly from Seattle to O'Hare International Airport (ORD)

August is the busiest month to board a flight from Seattle to O'Hare International Airport while February is the quietest. To work out the ideal time to visit Chicago, consider the pace you like to travel at.
The warmest month in Chicago is July, with temperatures ranging between 15ºC and 29ºC. Book your flights from Seattle to ORD in this month if you enjoy this type of weather.
Search for cheap flights from Seattle to O'Hare International Airport in January if you like cooler conditions. Temperatures are at their lowest around then, ranging between -12ºC and 3ºC on average.

More about Chicago

After locking in your flight from Seattle to O'Hare International Airport, think about where to rest your head in this city. Make one of these accommodation options your base for exploring Chicago:
One of the best ways to get a feel for Chicago is to explore its most popular sights. Some highlights include Millennium Park, Art Institute of Chicago and LandShark Beer Garden at Navy Pier.

Complete your Chicago trip with a car rental

We use the same magic that helped you find your cheap flight from Seattle to O'Hare International Airport to track down your perfect ride. Browse our car rentals in Chicago and easily compare your options. Plus you'll find all the info you need to know, from the most popular car type to the best time to book.