Cheap flights from Newark Airport to Seattle from C$ 256

If you aren’t able to travel to Seattle during the month of October, then flying in January is also cheap. Prices for this month can be found on momondo for an average of C$ 415.

Our data shows that Thursday is the least expensive day to fly to Seattle. Tickets to fly out on this day can be as low as C$ 573. If your travel schedule is flexible, try to avoid departing on a Monday because tickets tend to average around C$ 940. These prices are subject to change though, so be sure to set up a Price Alert for flights to Seattle.

Our most recent data shows that the best time of day to fly to Seattle is in the evening. Flights from Newark Airport to Seattle during this time can be as low as C$ 575. Flights in the afternoon are often more expensive with an average ticket price of C$ 726.

Fly from Newark to Seattle/Tacoma Intl for the best Newark - Seattle/Tacoma Intl flight prices

You are more likely to see cheaper flights to Seattle from Newark Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Seattle for around C$ 549 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seattle from Newark Airport for as low as C$ 477 on momondo.

There are 2 cabin classes available to choose from on Newark Airport to Seattle flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

You could potentially save up to 5% on your flight if you consider stops on a Newark Airport to Seattle flight.

As of August 2026, prices for Newark Airport to Seattle flights are approximately 20% cheaper when compared to flights at the same time last year.

Historically, on average around 18% of flights between Newark and Seattle have experienced a delay on any given week. The average delay length over the past 12 months has been 178 minutes.

Generally, flights departing in the morning tend to experience fewer delays. Flights departing in the evening have, in the past, seen delays more frequently in comparison.

Tuesday is statistically the day of the week that experiences the fewest delays on this flight route. Sunday has historically seen more delays on average compared to the rest of the week.

According to our data, United Airlines has had the least delays on this route over the last 12 months, with about 17% of their flights experiencing any sort of delay.

The number of flights available between Newark Airport and Seattle is 8 per day as of August 2026. The most frequent departure time is 7:00a.m., with 47% of daily flights leaving at noon.

The number of flights available between Newark Airport and Seattle is 57 per week as of August 2026. The most frequent departure day is Thu, with 19% of weekly flights leaving on this day.