Book Cheap Alaska Airlines flight from Chicago (ORD) to Seattle (SEA) from CA $121

For information on any present Seattle - Tacoma Intl. Airport (SEA) travel advice and quarantine requirements, visit our Covid-19 Travel Advisor. Check before you arrange your flight, so you don’t get caught out.

If you’re flying between O’Hare Intl. Airport (ORD) and Sea-Tac Airport with Alaska Airlines, you’ll probably be leaving from terminal 3. Your airline should be able to tell you which terminal you’ll be jumping off the plane at.

You bet. Save yourself time and effort and jet straight from O’Hare Intl. Airport (ORD) to Seattle - Tacoma Intl. Airport (SEA) with Alaska Airlines. Avoid tiresome transfers, reduce the risk of losing your suitcase and reach your destination faster — direct flights are the preferred way to travel for many wise wanderers.

Depending on good weather and no delays, your Alaska Airlines flight from ORD to SEA should take on average 6 hours and 15 minutes. That means you’ve got ample time to enjoy a drink or two, get some shut-eye and go over your travel schedule before you touch down.

Looking for a flight from ORD to SEA with Alaska Airlines? On this route, you’ll typically be boarding either the Boeing 737-900 or the Boeing 737 MAX 9 type aircraft.

If you’d like to book a jaunt from ORD to SEA, you can choose from around 4 Alaska Airlines flights every day.

For more info about changing your flight to Sea-Tac Airport, please visit our Customer Service Portal.

This just in! Airfares offered on Thursdays tend to be the cheapest, according to flight demand on Travelocity in 2021. Tuesday and Wednesday prices are also good, but you may want to prepare your budget if booking during the weekend, as data shows that is when prices are generally at their highest.

Frequent travelers may already know this, but earlier in the week can be the cheapest time to fly. In 2021, flights departing on a Monday were generally the cheapest of the week, whereas you may pay a premium for weekend flights when demand is usually high. On average, tickets were most expensive for Saturday departures, so if you need to fly out on a weekend, you might look for deals ahead of time.

Trying to figure out how early you should book your flight? It’s possible to start comparing international airfares on Travelocity 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 0-2 weeks prior to their travel dates.*According to flight demand on Travelocity.com from January to December 2021. Savings are subject to change based on departure location, date and destination.