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Cheap ORD to SEA Flights

Prices found within past 7 days. Prices and availability subject to change. Additional terms may apply.

Chicago to Seattle route information

Origin Airport O'Hare Intl.
Destination Airport Seattle - Tacoma Intl.
Airlines Serving Alaska Airlines, American Airlines, Delta, Frontier Airlines, JetBlue Airways, Spirit Airlines, Sun Country Airlines, United
Flight Price $157
Distance 1,715 mi



Cheap ORD to SEA Flights

  • Do some days of the week have more flight times than others?

    The day with the most departure times for this route is Sunday with 35 options. However, with only 26 flight times, Wednesday doesn't offer quite as many options when finding that perfect departure time.
  • Can I change the date of my flight?

    You sure can change your departure date and you may save by changing when you take off. The lowest-cost day to fly in September is Wednesday. Being flexible with your travel days can provide you extra savings when booking.
  • How long is the flight from ORD to SEA?

    United Airlines currently holds the shortest travel time with four hours and 29 minutes. So, you would arrive in Seattle at 11:50 AM PDT if you left Chicago at 9:21 AM CDT. Remember, there is a two-hour time difference.
  • What is the cheapest day to fly to Seattle?

    As of Sep 2nd, the best day for booking to Seattle (SEA) is Sep 4th. A ticket will run you $154, which is 28% below the average price to book the same route.
  • Which airline has the least delays from Chicago to Seattle?

    Booking with Delta Air Lines means you will arrive to Seattle around the time you were supposed to. In fact, this timely airline has a 79% average for landing before the plane turns into a pumpkin. It never hurts to be prepared. If you should choose this airline, be sure to track the flight status to stay on top of the departure time.
  • How long does it take to fly from Chicago to Seattle?

    This flight takes around four hours and 29 minutes via United Airlines. If you catch the 9:21 AM CDT departure, you'll arrive at 11:50 AM PDT. Until we get the glitches worked out of our teleportation machine, this is still the one of the fastest ways to get from Chicago to Seattle (don't forget, there is a two-hour time change).
  • How many flights are there per day from Chicago to Seattle?

    Each day is different, but on average, you can expect to see 29 available departure times. The average route departing the United States currently has nine different flight times per day. You'll have more choices than the average passenger.

Chicago to Seattle Flights

Sometimes you just need to get out of town or maybe you’re looking for a change of scenery. Regardless of the reason, a flight from Chicago to Seattle will do just the trick! Go on, plan to see all the famous landmarks and eat your weight in the local cuisine. Your trip is beckoning, so answer the call by packing your suitcase and filling your travel itinerary with exploring Seattle.

Whether you’re flying for business or jet-setting on your personal time, you’ve come to the right place. Here at, we’ll pair you up with ORD to SEA flights that won’t make your bank account wince. Ready to temporarily leave behind Chicago for new horizons? Browse through our cheap airfare, and filter by flight times and dates until you find just what you had in mind. From flights without layovers to ones that arrive early in the morning, you’ll come across plane tickets that suit your travel preferences. You can even bundle your flight to SEA with hotels and car rentals to score even bigger savings.

All set to hit the clouds? Book your travel arrangements with us today and have left-over money to put toward your travel outings and adventures.

Sep 12, 2019

clean, spacious, comfy, and a pleasant experience

Aug 29, 2019

The flight crew was amazing. Kind, personable and professional.

Aug 24, 2019

Overall a positive experience. Delta personnel were great, plane had nice features. Seat comfort was beyond bad. I’m going to give the benefit of the doubt here and believe t was due to sitting in front of the exit row, but, my, that was awful!

Aug 20, 2019

First half of flight was cramped and crowded. Second half we received comfort+ which was so much better.

Aug 19, 2019


Aug 17, 2019

American, Delta and United flights are always a pleasure!

Aug 17, 2019

The kindest crew I’ve ever flown with. My traveling companion has an extreme fear of flying (that sometimes prevents hers from actually boarding her flights) and the Alaska crew was patient and so great with her. The pilots met with her and showed her around and she even got her wings at the end of the flight!

Aug 13, 2019

Wifi did not work for me

Aug 6, 2019

They went out-of-their way to get me an aisle seat and I appreciated it.

Aug 6, 2019

I mainly slept and no one bothered me so that was nice.

Package Disclaimer

*Savings amount equal to 100% when flight + hotel are booked together. Prices based on searches conducted by fellow shoppers within the past 24 hours. There is no guarantee that these prices will be in effect at the time of your search. Vacation package savings are based on comparison to prices on of the same components booked separately. Savings vary based on origin/destination, length of trip, stay dates and travel partners, and aren't available on all packages.