Flight tickets from Chicago to Seattle

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Flight deals from Chicago to Seattle

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

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 June.

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₹ 6,404
Cheapest month to flyJune
Average flight time4 hrs, 36 mins
Most popular airlineAmerican Airlines
Average flights per week447

Finding cheap flights from Chicago to Seattle: Frequently asked questions

There are 4 airports in Seattle: Seattle Lake Union SPB, Seattle Boeing Fld, Seattle / Tacoma International, and Paine Field.
The best price we found for a return flight from Chicago to Seattle is ₹ 13,927. 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.
4 hours and 36 minutes is the average flight time from Chicago to Seattle.
American Airlines, Qatar Airways and Air Tahiti Nui fly direct from Chicago to Seattle.
As of May 2025, there are 454 flights per week flying from Chicago to Seattle.
The cheapest month to fly from Chicago to Seattle is usually May 2025.
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 ₹ 13,927.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Chicago to Seattle on Friday, 30 May 2025.
Yes – the average flight time is 4 hours and 36 minutes.
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.
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.
In May, the average temperature is usually around 12°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.
The cheapest airline that flies to Seattle is Spirit Airlines. And the cheapest airline that flies to Seattle Boeing Fld Airport is Hawaiian Airlines.

Travelling from Chicago to Seattle: what you need to know

  • Set off on your next big adventure from one of Chicago's main airports, O'Hare International Airport (ORD) or Chicago Midway International Airport (MDW). Explore the options for booking a flight from Chicago to Seattle setting off from either of these bases.

  • Seattle-Tacoma International Airport (SEA) is the primary entry point to Seattle.

  • The average time for a direct Chicago to Seattle flight is 4 hours 35 minutes.

  • The timezone in Seattle is UTC-7, which is two hours behind Chicago.

  • The busiest route for flights from Chicago to Seattle is from O'Hare International Airport (ORD) to Seattle-Tacoma International Airport (SEA). There are 105 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 have other commitments or plans on your day of travel, the final scheduled service is at 21:32 with United Airlines.

  • Give yourself plenty of time to get on your Chicago to Seattle flight. A good rule of thumb is to arrive two hours before international departures and an hour ahead for domestic flights.

  • Popular months like August or high seasons such as spring break and Christmas will mean bigger lines at check-in and security. Play it safe and get to the terminal even earlier. Arriving two hours before a domestic flight and four hours ahead of international departures is a wise idea.

How to find the cheapest flights from Chicago to Seattle

  • Currently, ₹ 6,404 is the best price we've seen for a one-way ticket from Chicago to Seattle. The cheapest price for a return flight is ₹ 13,927. Keep in mind fares may change due to availability at the time of booking.

  • To score cheap Chicago to Seattle flights, reserve your trip two months before your departure date.

  • Schedule your trip for May. That's the best month for scoring the biggest deals on plane tickets from Chicago to Seattle. If you have flexibility with your dates, use the 'Whole month' tool to see the cheapest price across every month.

  • Cut down on the time spent looking for cheap flights from Chicago to Seattle by creating a Price Alert. We'll send you an email or notification on the app when a new low fare is offered.

  • Save money on your Chicago to Seattle flight with the help of our filters. Choose your ideal times, airlines and number of stops, then sort the results by 'Cheapest' to see the best deals.

Flying from Chicago

O'Hare International Airport (ORD)

  • You can get a direct flight from Chicago to Seattle jetting off from O'Hare International Airport (ORD). Begin your journey at ORD and touch down at Seattle-Tacoma International Airport (SEA).

  • You'll have your pick of airlines that offer direct Chicago to Seattle plane tickets out of ORD. Let one of these carriers take you there:

  • Located around 26 kilometres from central Chicago, ORD can be reached in about 35 minutes by car (depending on traffic). The journey on public transport takes roughly 55 minutes.

  • Want a leisurely start to your trip? Stay near O'Hare International Airport. Whether you're catching an early flight from Chicago to Seattle or just don't like being rushed, these hotels are just the thing:

  • Of the flights that depart from O'Hare International Airport, 74.85% land on schedule at their destination.

  • You'll find ORD at 10000 West O'Hare.

Chicago Midway International Airport (MDW)

  • You can catch a nonstop flight from Chicago to Seattle leaving from Chicago Midway International Airport (MDW). Begin your travels at MDW and disembark at Seattle-Tacoma International Airport (SEA).

  • Book your direct Chicago to Seattle plane ticket with Southwest Airlines. This is one of the main carriers operating this route out of MDW.

  • You can reach MDW from central Chicago in about 20 minutes by car (depending on traffic). The ride by public transport will take roughly 45 minutes to travel the 14 kilometres or so.

  • Get a head start on your holiday with an additional night away from home. Before your flight from Chicago to Seattle, stay in one of these hotels near Chicago Midway International Airport:

  • 77.88% of flights out of Chicago Midway International Airport arrive within the expected time frame.

  • 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 18 kilometres. It takes about 20 minutes to reach the centre driving.

  • It typically takes 55 minutes to get there when travelling by public transport.

  • Consider booking a hotel close to SEA if you're coming in on a late flight from Chicago to Seattle. Select one of these options and skip the long transfer:

  • Begin your adventure by picking up a Seattle-Tacoma International Airport rental car. Grab your wheels from Thrifty, Europcar or Budget to explore Seattle and beyond.

  • Reserving your ride from Seattle-Tacoma International Airport around one week in advance can help you get the best possible rate.

Lake Union Sea Plane Base Airport (LKE)

  • Once your flight from Chicago to Seattle has landed, you can make your way to the city centre in around 10 minutes by car. Central Seattle is approximately 3 kilometres from Lake Union Sea Plane Base Airport (LKE).

  • If you're catching public transport, it'll take approximately 25 minutes.

  • Place the 'Do not disturb' sign on your door and relax at a hotel close to LKE. Here are a few options where you can kick back after your flight from Chicago to Seattle:

Best time to go to Seattle

  • July is the busiest month for flights from Chicago to Seattle. To skip the crowds, go to Seattle in May.

  • Before locking in your Chicago to Seattle tickets, think about the type of weather you enjoy. August is the warmest month in Seattle, with temperatures ranging from 12ºC to 28ºC.

  • February has average temperatures of between -1ºC and 11ºC. Search for cheap flights from Chicago to Seattle around that time if you want to travel in cooler conditions.

More about Seattle

  • Start your Seattle trip off on the right foot by choosing the perfect place to stay. After booking your flight from Chicago to Seattle, explore our range of hotels including:

  • All great adventures should include a little sightseeing. Greyhound: Bus Station, LMN Architects and Boeing Radiation Effects Lab are attractions you won't want to skip in Seattle.

Explore more of United States

  • You've visited Seattle, now it's time to explore more of United States. Travel about 241 kilometres south to Portland to tick off its popular sights. From Pioneer Courthouse Square to Portland Japanese Garden and Pittock Mansion, you'll have a full itinerary ahead.

  • Spokane is another sought-after destination in United States and is around 370 kilometres east of Seattle. No trip is complete without experiencing Manito Park, Northwest Museum of Arts & Culture and Spokane Falls.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.