Cheap flights from New York LaGuardia Airport to Seattle from $257

The month of December is, on average, the cheapest month to fly to Seattle from New York LaGuardia Airport, with most prices found around $371. If you are unable to visit Seattle during the month of December, then departing from New York LaGuardia Airport during the month November is also very affordable. Most momondo users find prices during this month for around $371.

The cheapest day to depart from New York LaGuardia Airport to Seattle is on a Wednesday. Travellers who choose to depart for Seattle on a Wednesday will often find tickets for as low as $522. When flying out on a Thursday, the most expensive travel day of the week, you can expect to see flight prices from New York LaGuardia Airport to Seattle for around $2,054.

According to our data, the cheapest time of day to fly to Seattle is in the afternoon. momondo users have found flights departing from New York LaGuardia Airport to Seattle in the afternoon for as low as $540. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. In contrast, the most expensive time of day to depart to Seattle is in the morning when prices are around $2,054.

As of August 2026, prices for New York LaGuardia Airport to Seattle flights are approximately 55% more expensive when compared to flights at the same time last year.

Historically, on average around 0% 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 0 minutes.

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