Cheap flights from New York John F Kennedy Intl Airport to Seattle from £137

The cheapest month to fly to Seattle from New York John F Kennedy Intl Airport is in October. Flight prices, which tend to average around £240, are often lower during this time because this is during the off-season. The month of February is another great option to travel to Seattle, with average flight prices from New York John F Kennedy Intl Airport averaging around £253.

According to our data, Wednesday is the cheapest day to fly to Seattle from New York John F Kennedy Intl Airport. The lowest ticket price found for a Wednesday departure recently was £241. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. Be sure to avoid booking your departure on a Saturday as prices are generally higher than usual. According to our data, the average ticket price to Seattle on Saturday is £513.

According to our data, the cheapest time of day to fly to Seattle is in the morning. momondo users have found flights departing from New York John F Kennedy Intl Airport to Seattle in the morning for as low as £401. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights in the afternoon are often more expensive, with an average ticket price of £403.

Fly from New York John F Kennedy Intl to Seattle/Tacoma Intl for the best New York John F Kennedy Intl - Seattle/Tacoma Intl flight prices

You are more likely to see cheaper flights to Seattle from New York John F Kennedy Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Seattle for around £336 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seattle from New York John F Kennedy Intl Airport for as low as £303 on momondo.

There are 3 cabin classes available to choose from on New York John F Kennedy Intl Airport to Seattle flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Historically, on average around 22% of flights between New York and Seattle have experienced a delay on any given week. The average delay length over the past 12 months has been 175 minutes.

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

Saturday 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, Delta have had the fewest delays on this route over the last 12 months, with about 19% of their flights experiencing any sort of delay.

The number of flights available between New York John F Kennedy Intl Airport and Seattle is 32 per day as of September 2026. The most frequent departure time is 19:00, with 48% of daily flights leaving in the afternoon.

As of September 2026, 227 flights take off from New York John F Kennedy Intl Airport and land in Seattle each week. The most common flight departure day for this route is Fri, with 17% of weekly flights taking off on this day.