Cheap flights from Seattle to New York from $139

The cheapest month to fly to Newark Airport from Seattle is in October. Flight prices, which tend to average around $292, are often lower during this time because this is during the off-season. If you don’t want to visit Newark Airport in October, then you should wait until January to fly from Seattle, when ticket prices are also cheap, with an average price of $297.

The cheapest day to depart on your flight to Newark Airport is on a Wednesday when prices can be found for as low as $361. This is often the case because there is less demand to fly during this day of the week. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from Seattle to Newark Airport for around $469.

The cheapest time of day to fly to Newark Airport is in the afternoon when flights can be purchased for as low as $369. Flights at noon are often more expensive with an average ticket price of $407.

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

You are more likely to see cheaper flights to Newark Airport from Seattle when booking weeks ahead of your departure date. In general, you can expect to find flights to Newark Airport for around $374 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Newark Airport from Seattle for as low as $305 on momondo.

There are 4 cabin classes available to choose from on Seattle to Newark Airport 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 32% on your flight if you consider stops on a Seattle to Newark Airport flight.

As of April 2026, prices for Seattle to Newark Airport flights are approximately 7% cheaper when compared to flights at the same time last year.

Delta, United Airlines, and Alaska Airlines are the most popular carriers operating from Seattle/Tacoma Intl to Newark

Alaska Airlines, United Airlines and Hawaiian Airlines are the top three most popular airlines that fly to Newark Airport from Seattle according to our data. Alaska Airlines is the first choice among our users, with 61% of people opting to fly with this airline when traveling to Newark Airport. Keep in mind that there are 7 different airlines that fly to Newark Airport on a routine basis, so you have a few additional options to choose from.

Historically, on average around 18% of flights between Seattle and Newark have experienced a delay on any given week. The average delay length over the past 12 months has been 186 minutes.

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

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

According to our data, Alaska Airlines have had the least number of delays on this route over the last 12 months; with about 18% of their flights experiencing any sort of delay.

Denver (DEN) was the most common stop: 50% of momondo users choosing 1-stop flights on this route connected there.

Flights via Las Vegas (LAS) offer the lowest average round-trip price of $251.

Flights connecting via Denver (DEN) have the shortest average one-way travel time: 7h 12m.

Denver (DEN) has the shortest average layover time for this route: 1h 10m.

The number of flights available between Seattle and Newark Airport is 8 per day as of April 2026. The most frequent departure time is 2:00PM, with 38% of daily flights leaving at noon.

62 flights are operational weekly from Seattle to Newark Airport as of April 2026. The most popular departure day for this route is Mon, with 19% of flights per week taking off on this day.