Cheap Flights From Seattle - Tacoma Intl. (SEA) To O'Hare Intl. (ORD)

Feel at ease with free flight cancellations within 24 hours of booking

Change your flight without a fee on select flights

Find The Best Dates To Fly

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

The cheapest flights to O'Hare Intl. found within the past 7 days were CA $189 round trip and CA $95 one way. Prices and availability subject to change. Additional terms may apply.

Flight Schedule for SEA to ORD

CarrierFlightDepart SEAArrive ORDThu.
02/05
Fri.
03/05
Sat.
04/05
Sun.
05/05
Mon.
06/05
Tue.
07/05
Wed.
08/05
Stops
AS40806:00 am00:10 pmCheck FareCheck FareCheck FareCheck FareCheck FareCheck FareCheck Fare
0 Stops
UA140006:35 am04:29 pmCheck FareCheck Fare
-
Check FareCheck FareCheck FareCheck Fare
1 Stops
UA213807:00 am01:02 pmCheck FareCheck FareCheck FareCheck FareCheck FareCheck FareCheck Fare
0 Stops
DL125607:25 am01:23 pmCheck FareCheck FareCheck FareCheck FareCheck Fare
-
-
0 Stops
AS48608:00 am02:11 pmCheck FareCheck Fare
-
Check FareCheck Fare
-
-
0 Stops
AS35210:36 am04:47 pmCheck FareCheck FareCheck FareCheck FareCheck FareCheck FareCheck Fare
0 Stops
UA65610:49 am04:55 pmCheck FareCheck FareCheck FareCheck FareCheck FareCheck FareCheck Fare
0 Stops
AS41000:12 pm06:23 pmCheck FareCheck Fare
-
Check FareCheck Fare
-
-
0 Stops
DL228901:30 pm07:25 pmCheck FareCheck Fare
-
Check FareCheck Fare
-
-
0 Stops
AA235901:32 pm07:40 pmCheck FareCheck FareCheck FareCheck FareCheck FareCheck FareCheck Fare
0 Stops
UA196402:21 pm08:19 pmCheck FareCheck FareCheck FareCheck FareCheck FareCheck FareCheck Fare
0 Stops
UA137604:46 pm10:44 pmCheck Fare
-
-
-
-
-
-
0 Stops
AS53805:58 pm11:58 pmCheck FareCheck FareCheck FareCheck FareCheck FareCheck FareCheck Fare
0 Stops
DL166306:00 pm11:58 pmCheck FareCheck FareCheck FareCheck FareCheck Fare
-
-
0 Stops
AA236810:54 pm05:05 amCheck FareCheck FareCheck FareCheck Fare
-
-
-
0 Stops
UA74711:45 pm05:43 amCheck FareCheck FareCheck FareCheck FareCheck FareCheck FareCheck Fare
0 Stops
AS32811:46 pm05:45 amCheck FareCheck FareCheck FareCheck FareCheck FareCheck FareCheck Fare
0 Stops
UA201304:46 pm10:44 pm
-
Check FareCheck Fare
-
Check FareCheck Fare
-
0 Stops
AA118111:59 pm06:11 am
-
-
-
-
Check FareCheck FareCheck Fare
0 Stops
DL118907:25 am01:34 pm
-
-
-
-
-
Check FareCheck Fare
0 Stops
DL85001:30 pm07:41 pm
-
-
-
-
-
Check FareCheck Fare
0 Stops
DL107406:00 pm00:05 am
-
-
-
-
-
Check FareCheck Fare
0 Stops

Frequently asked questions

Are there direct flights from Seattle - Tacoma Intl. Airport (SEA) to O'Hare Airport?
Alaska Airlines and United Airlines are a couple of the airlines that sell nonstop flights from Seattle - Tacoma Intl. Airport (SEA) to O’Hare Airport. If you’re itching to get to where you’re headed without swapping planes, these are your best options.
What airlines fly from SEA to O'Hare Intl. Airport (ORD)?
If you’re heading from Seattle to Chicago, there is a good range of airlines that’ll fly you there. Choose a seat with these popular air companies offering direct flights from Seattle - Tacoma Intl. Airport (SEA) to ORD:

  • Alaska Airlines - (AS) with 152 flights every month
  • United Airlines - (UA) with 152 flights every month
  • American Airlines - (AA) with 112 flights every month
  • Delta - (DL) with 78 flights every month

What is the best day to buy a plane ticket?
Airfares offered on Friday tend to be the cheapest, according to flight demand on Travelocity.ca in 2021. Purchasing your airfares on a Thursday or Saturday can also provide better value, however our advice if you’re looking to save money is to avoid booking on a Wednesday or Sunday. Our data shows that those two days have the highest ticket values on average, so keep this in mind if you’re browsing flight deals.
What are the cheapest days to fly?
Frequent travellers may already know this, but earlier in the week is often the cheapest time to fly. Flights departing on a Monday are the cheapest of the week. Since flights towards the middle of the week tend to be more popular, this causes the prices to rise. This is why, on average, airfares booked on Travelocity.ca in 2021 were most expensive for Wednesday departures.
How far in advance can you book a flight?
Here’s the deal: It is typically possible to start comparing international airfares on Travelocity.ca up to 12 months in advance. However, it does depend on the carrier as not all airlines release their prices that far out. According to our 2021 flight demand trends, last minute planners can still bag a bargain with some of the cheapest fares appearing 2-4 weeks prior to their travel dates.*According to flight demand on Travelocity.ca from January to December 2021. Savings are subject to change and may vary depending on selections made.
*Price based on the lowest price found within past 24 hours and based upon one night stay for two adults over the next thirty days. Prices and availability subject to change. Additional terms may apply.