Cheap flights from New York to Seattle from $121 EWR, JFK, LGA → BFI, SEA

Found recently, and the cheapest we hold

What have prices looked like?

Over 49 days, 24 Sept to 11 Nov, the cheapest return we saw each day was $291 to $399.

Those were the prices on those days, not today's.

Could nearby dates be cheaper?

We hold no other 8-night return fares leaving within 3 days of 12 Feb 2027 to compare.

Every date we hold

122 fares on 8 departure dates

Which month looks cheapest?

January 2027 is the cheapest month — from $334.

Found recently, and the cheapest we hold

It is also the cheapest one-way we hold, of any age.

What have prices looked like?

Over 47 days, 24 Sept to 11 Nov, the cheapest one-way we saw each day was $98 to $209.

Those were the prices on those days, not today's.

Could nearby dates be cheaper?

We hold no other one-way fares leaving within 3 days of 21 Nov to compare.

Every date we hold

10 fares on 5 departure dates

Which month looks cheapest?

November 2026 is the cheapest month — from $121.

Return

The cheapest fares were 14 to 29 days before departure.

From the cheapest return each day between 24 Sept and 11 Nov (49 days), grouped by how many days ahead the flight left; one adult in economy.

Each range covers different departure dates, so this compares typical fares, not the same trip priced twice.

Prices reflect recent searches — current fares may differ.

One-way

The cheapest fares were 60 to 89 days before departure.

From the cheapest one-way each day between 24 Sept and 11 Nov (47 days), grouped by how many days ahead the flight left; one adult in economy.

Each range covers different departure dates, so this compares typical fares, not the same trip priced twice.

Prices reflect recent searches — current fares may differ.

How much is a return flight from New York to Seattle?

The cheapest return found recently is $386 with Alaska Airlines, 12 Feb 2027 to 20 Feb 2027, found 4 days ago. The cheapest return we hold, of any age, is $334 with Alaska Airlines, 14 Jan 2027 to 20 Jan 2027, found 5 days ago. The cheapest return fare on each of 8 departure dates is usually $365 to $418.

How much is a one-way flight from New York to Seattle?

The cheapest one-way found recently is $121 with Alaska Airlines, 21 Nov, found 2 days ago. The cheapest one-way fare on each of 5 departure dates is usually $187 to $489.

What is the cheapest month to fly from New York to Seattle?

January 2027 is the cheapest month for a return, from $334, 14 Jan 2027 to 20 Jan 2027, found 5 days ago. November 2026 is the cheapest month for a one-way, from $121, 21 Nov, found 2 days ago.

How far ahead should I book a flight from New York to Seattle?

In 49 days of prices between 24 Sept and 11 Nov, return fares were cheapest 14 to 29 days before departure. In 47 days of prices between 24 Sept and 11 Nov, one-way fares were cheapest 60 to 89 days before departure.

Is there a direct flight from New York to Seattle?

Yes, the cheapest nonstop return found recently is $398 with Alaska Airlines, 12 Feb 2027 to 21 Feb 2027, found 4 days ago. The cheapest nonstop one-way found recently is $187 with Alaska Airlines, 17 Aug 2027, found 5 days ago.

How long is the flight from New York to Seattle?

The cheapest nonstop one-way found recently, with Alaska Airlines on 17 Aug 2027, takes 6 h 13 min from Newark Liberty International Airport (EWR) to Seattle-Tacoma International Airport (SEA).

Which airlines have the cheapest flights from New York to Seattle?

Between 1 Dec and 13 Jul 2027, Alaska Airlines has the cheapest return on 7 of the 8 departure dates we hold, and American Airlines on 1. Between 21 Nov and 28 Oct 2027, Alaska Airlines has the cheapest one-way on 3 of the 5 departure dates we hold, and Air Canada on 2.