LWS to SEA, Nez Perce County Regional Airport to Seattle–Tacoma International Airport Cheap Flights

Based on HopeGoo data, Delta Air Lines offers one-way fares as low as US$346 on Cheapest nonstop routes (e.g. LWS to SEA on Thu, Mar 5), while Delta Air Lines offers Cheapest nonstop round-trips from US$156 departing on Mon, Mar 16 and returning on Mon, Mar 23.

It takes about 1 hour 29 minutes to fly from Lewiston to Seattle.

By analyzing data from all airlines on the HopeGoo flight calendar, it looks like the best time to book a flight from Lewiston to Seattle is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.

To find best deals on flights from Lewiston to Seattle, you can use various tools on HopeGoo: · Be flexible with your travel dates to get the cheapest flight deal. Now the cheapest flight deal is on Thu, Mar 5, with one-way flights priced at just US$346. · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is Delta Air Lines. · Set up price alerts to easily monitor ticket prices without having to check every day. · Check HopeGoo flight deals and promo codes frequently. · Avoid peak season unless you book very early. It seems the peak season for Seattle travel is around July. · Get exclusive promo codes for HopeGoo app users.

The cheapest months to fly from Lewiston to Seattle is November, when demand for travel is lower.

After crunching the numbers on our February flight calendar, it's currently cheapest to fly from Lewiston to Seattle on February 27, 2026 with Delta Air Lines, with prices starting at US$228.

The time difference between Seattle and Lewiston is 0h.

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