Cheap flights from Chicago (CHIA) to Seattle (SEAA)

Compare Chicago to Seattle flight deals

Find the cheapest month or even day of the year to fly to Seattle

Book the best Seattle fare with no extra fees

Flight deals from Chicago to Seattle

Looking for a cheap last-minute deal or the best return flight from Chicago to Seattle? If you want to travel next month, return fares start from $333. Find the lowest prices on one-way and return tickets right here.

Seattle.$92 per passenger.Departing Wed, 29 Jul.One-way flight with Alaska Airlines.Outbound direct flight with Alaska Airlines departs from Chicago O'Hare International on Wed, 29 Jul, arriving in Seattle / Tacoma International.Price includes taxes and charges.From $92, select.

Seattle.$146 per passenger.Departing Tue, 11 Aug.One-way flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Chicago O'Hare International on Tue, 11 Aug, arriving in Seattle / Tacoma International.Price includes taxes and charges.From $146, select.

Seattle.$152 per passenger.Departing Wed, 19 Aug.One-way flight with Alaska Airlines.Outbound direct flight with Alaska Airlines departs from Chicago O'Hare International on Wed, 19 Aug, arriving in Seattle / Tacoma International.Price includes taxes and charges.From $152, select.

Seattle.$165 per passenger.Departing Sat, 26 Sep.One-way flight with Alaska Airlines.Outbound direct flight with Alaska Airlines departs from Chicago O'Hare International on Sat, 26 Sep, arriving in Seattle / Tacoma International.Price includes taxes and charges.From $165, select.

Seattle.$166 per passenger.Departing Sat, 10 Oct.One-way flight with Alaska Airlines.Outbound direct flight with Alaska Airlines departs from Chicago O'Hare International on Sat, 10 Oct, arriving in Seattle / Tacoma International.Price includes taxes and charges.From $166, select.

Seattle.$169 per passenger.Departing Sat, 7 Nov.One-way flight with Delta.Outbound direct flight with Delta departs from Chicago O'Hare International on Sat, 7 Nov, arriving in Seattle / Tacoma International.Price includes taxes and charges.From $169, select.

Seattle.$230 per passenger.Departing Wed, 16 Dec.One-way flight with Delta.Outbound direct flight with Delta departs from Chicago O'Hare International on Wed, 16 Dec, arriving in Seattle / Tacoma International.Price includes taxes and charges.From $230, select.

Seattle.$244 per passenger.Departing Thu, 11 Mar.One-way flight with Delta.Outbound direct flight with Delta departs from Chicago O'Hare International on Thu, 11 Mar, arriving in Seattle / Tacoma International.Price includes taxes and charges.From $244, select.

Seattle.$244 per passenger.Departing Thu, 13 May.One-way flight with Delta.Outbound direct flight with Delta departs from Chicago O'Hare International on Thu, 13 May, arriving in Seattle / Tacoma International.Price includes taxes and charges.From $244, select.

Seattle.$245 per passenger.Departing Tue, 5 Jan.One-way flight with Delta.Outbound direct flight with Delta departs from Chicago O'Hare International on Tue, 5 Jan, arriving in Seattle / Tacoma International.Price includes taxes and charges.From $245, select.

Seattle.$245 per passenger.Departing Sat, 27 Feb.One-way flight with Delta.Outbound direct flight with Delta departs from Chicago O'Hare International on Sat, 27 Feb, arriving in Seattle / Tacoma International.Price includes taxes and charges.From $245, select.

Seattle.$262 per passenger.Departing Thu, 15 Apr.One-way flight with Delta.Outbound direct flight with Delta departs from Chicago O'Hare International on Thu, 15 Apr, arriving in Seattle / Tacoma International.Price includes taxes and charges.From $262, select.

Seattle.$564 per passenger.Departing Fri, 4 Jun.One-way flight with Air Canada.Outbound indirect flight with Air Canada, departs from Chicago O'Hare International on Fri, 4 Jun, arriving in Seattle / Tacoma International.Price includes taxes and charges.From $564, select.

Find the cheapest month to fly from Chicago to Seattle

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

Jul

Aug

Sep

Oct

Nov

Dec

Jan

Feb

Mar

Apr

May

Jun

Direct flights from Chicago to Seattle

Alternative Chicago to Seattle routes

Looking for the cheapest, fastest or easiest route from Chicago to Seattle? You could fly into the following airports instead.

Chicago to Seattle: Flight information

The things to know before you go.

Cheapest flight found	$92
Cheapest month to fly	July
Average flight time	4 hrs, 40 mins
Most popular airline	American Airlines
Average flights per week	528

Finding cheap flights from Chicago to Seattle: Frequently asked questions

How many airports are there in Seattle?

There are 4 airports in Seattle: Seattle Lake Union SPB, Seattle Boeing Fld, Seattle / Tacoma International, and Paine Field.

How much are return flights from Chicago to Seattle?

The best price we found for a return flight from Chicago to Seattle is $333. 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 Chicago to Seattle?

4 hours and 40 minutes is the average flight time from Chicago to Seattle.

Which airlines fly direct from Chicago to Seattle?

American Airlines, Qatar Airways and Southwest Airlines fly direct from Chicago to Seattle.

How many flights are there a week from Chicago to Seattle?

As of July 2026, there are 528 flights per week flying from Chicago to Seattle.

When is the cheapest time to fly from Chicago to Seattle?

The cheapest month to fly from Chicago to Seattle is usually September.

Which is the cheapest airport to fly into in Seattle?

If you're flying from Chicago, the cheapest airport near Seattle is Seattle / Tacoma International – which is 19.5 km away from the centre of Seattle. We've found flights into this airport from $333.

Which upcoming date is cheapest to fly from Chicago to Seattle on?

After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Chicago to Seattle on Tuesday, 15 September 2026.

Can I get a direct flight from Chicago to Seattle?

Yes – the average flight time is 4 hours and 40 minutes.

How can I get the best flight deal from Chicago to Seattle?

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 Seattle 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 Seattle?

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

What’s the weather like in Seattle?

In July, the average temperature is usually around 17°C. August is typically the warmest month in Seattle, when it usually averages around 23°C. You can expect the least rain in July. The coldest month is December, with temperatures averaging 0°C. The rainiest month is November.

Which is the cheapest airline to fly from Chicago to Seattle with?

The cheapest airline that flies to Seattle is Frontier Airlines. And the cheapest airline that flies to Seattle Boeing Fld Airport is Alaska Airlines.

Flying from Chicago to Seattle: what you need to know

Start planning your holiday by checking out the most convenient departure point for your flight from Chicago to Seattle. Explore your options for taking off from Chicago O'Hare International Airport (ORD) or Chicago Midway Airport (MDW), two of the city's main airports.
Seattle / Tacoma International Airport (SEA) and Paine Field Airport (PAE) are the chief entry points to Seattle.
Jump on a direct Chicago to Seattle flight and you'll be travelling for an average of 4 hours 35 minutes.
Seattle is two hours behind Chicago and follows the UTC-8 timezone.
The most popular route for flights from Chicago to Seattle is from Chicago O'Hare International Airport (ORD) to Seattle / Tacoma International Airport (SEA). You can choose from 113 services every week between these two airports. If you want to head off as soon as possible, the earliest flight from ORD to SEA is the 06:00 Alaska Airlines option. If you prefer travelling later, the last departure is at 21:32 with United Airlines.
For a stress-free journey, turn up at the airport two hours ahead of international flights and one hour before domestic departures. This will give you enough time to board your Chicago to Seattle flight.
Be prepared for bigger queues in popular months such as July. Arriving up to four hours ahead of international flights and two hours for domestic departures is a good idea.

How to find the cheapest flights from Chicago to Seattle

Don't leave everything to the last moment. You're more likely to get cheap Chicago to Seattle flights if you book early. Airlines often offer some amazing early bird deals.
The 'Whole month' tool will show you the cheapest plane tickets from Chicago to Seattle throughout the entire month. It's a good way to snap up a bargain if your travel dates aren't set in stone.
Snapping up a cheap flight from Chicago to Seattle couldn't be easier with Price Alerts. Simply set up one of these automatic alerts and we'll get in touch when the price has dropped.
Find an affordable Chicago to Seattle flight with the help of our filters. Select your preferred duration, number of stops and airlines, then sort the results by 'Cheapest' to see the best deals.

Flying from Chicago

Chicago O'Hare International Airport (ORD)

You can get a direct flight from Chicago to Seattle leaving from Chicago O'Hare International Airport (ORD). Start your trip at ORD and arrive at Seattle / Tacoma International Airport (SEA).
You can choose from various carriers offering direct Chicago to Seattle plane tickets with departures from ORD, including:
Located around 26 kilometres from the centre of Chicago, ORD can be reached in about 30 minutes by car, depending on traffic. The journey on public transport is roughly 45 minutes.
Planning to catch an early flight from Chicago to Seattle? Avoid the last-minute rush to the terminal (and catch some extra z's) by choosing one of these hotels near Chicago O'Hare International Airport:
When it comes to the on-time performance of Chicago O'Hare International Airport, 70% of flights stick to their scheduled arrival time.
You'll find ORD at 10000 West O'Hare.

Chicago Midway Airport (MDW)

You can take a nonstop flight from Chicago to Seattle departing from Chicago Midway Airport (MDW). Kick off your travels at MDW and step off the plane at Seattle / Tacoma International Airport (SEA).
Book your direct Chicago to Seattle plane ticket with Southwest Airlines. This is one of the main carriers that operates this route out of MDW.
You can reach MDW from central Chicago in about 25 minutes by car, depending on traffic conditions. The journey on public transport will take roughly 30 minutes to cover the 14 kilometres or so.
Get your holiday started early with an additional night away from home. Before your flight from Chicago to Seattle, stay in one of these hotels close to Chicago Midway Airport:
76% of all departures from Chicago Midway Airport arrive according to schedule.
MDW is located at 5700 South Cicero.

Arriving in Seattle

Seattle / Tacoma International Airport (SEA)

The distance from Seattle / Tacoma International Airport (SEA) to central Seattle is approximately 19 kilometres. It takes about 25 minutes to get to the centre driving.
Getting there by public transport will take you roughly 35 minutes.
The last thing you need is a lengthy journey to your hotel if you're arriving on a late flight from Chicago to Seattle. Reserve one of these accommodation options near SEA instead:
Fast-track your adventure by picking up a Seattle / Tacoma International Airport rental car. Grab a set of wheels from Thrifty, Europcar or Budget and explore beyond Seattle's main sights.
Secure the lowest price by booking your ride from Seattle / Tacoma International Airport around one week before your travel date.

Paine Field Airport (PAE)

Once your flight from Chicago to Seattle has hit the runway, you can reach the city centre in around 20 minutes by car. Central Seattle is roughly 32 kilometres from Paine Field Airport (PAE).
The journey will take roughly 40 minutes on public transport.
After your flight from Chicago to Seattle, tuck yourself in at a hotel close to PAE. These are some comfortable options that'll help you sink into relaxation mode:
Pick up a Paine Field Airport rental car and make your journey as spontaneous as you want. You can select from popular companies like Budget and Enterprise.
Typically, the sooner you book, the better the prices and vehicle selection. Secure your ride from PAE the moment you know your dates.

Seattle Boeing Fld Airport (BFI)

Set off for the city centre after your flight from Chicago to Seattle has landed. Central Seattle is about 11 kilometres from Seattle Boeing Fld Airport (BFI) and takes roughly 20 minutes to get there in a car.
If you're travelling on public transport, the journey time is around 35 minutes.
Start your journey without worrying about how to get to your next stop with a Seattle Boeing Fld Airport rental car. Find your perfect set of wheels with reliable companies here like Alamo, Budget and Avis.
If you'd like a specific type of vehicle, booking early increases your chances of snagging what you want. Secure your ride from BFI a few weeks ahead of your flight from Chicago to Seattle.

Best time to go to Seattle

March is the quietest month for flights from Chicago to Seattle, while July is the busiest. Work out the best time to go to Seattle based on whether you want a bustling atmosphere or a more laid-back vibe.
Lock in a Chicago to Seattle ticket departing in August if you're eager to experience the city during its warmest month. Expect temperatures in Seattle to range from 12ºC (54ºF) to 28ºC (82ºF).
If you like cooler conditions, search for a cheap flight from Chicago to Seattle in February when temperatures average between -1ºC (30ºF) and 11ºC (52ºF).

More about Seattle

After booking your flight from Chicago to Seattle, decide where you'll be dropping your bags. Make one of these options your base for exploring Seattle:
There are so many things to discover in this city it can be hard to know where to begin. Space Needle, Pike Place Fish Market and The Museum of Flight are leading attractions which should feature on any well-planned Seattle itinerary.

Explore more of the United States

You've seen Seattle, now it's time to discover other corners of the United States. Travel about 241 kilometres south to Portland to tick off its leading sights. From Portland Japanese Garden to Peninsula Park Rose Garden and International Rose Test Garden, you'll have a packed itinerary ahead.
If you want to check out another corner of the United States, consider Spokane, about 370 kilometres east of Seattle. Riverside State Park, Spokane Falls (Upper Falls) and Cathedral of Our Lady of Lourdes are the start of reasons to visit.