Cheap Flights from Salt Lake City to Seattle from US$118

Frequently Asked Questions

• What are the cheapest flights from Salt Lake City to Seattle (SLC-SEA)?

  Based on Trip.com data, Frontier Airlines offers one-way fares as low as US$118 on Cheapest nonstop routes (e.g. SLC to SEA on Thu, Aug 13), while Frontier Airlines offers Cheapest nonstop round-trips from US$208 departing on Tue, Jun 30 and returning on Tue, Jul 7.

• Which airlines offer direct flights from Salt Lake City to Seattle?

  At the moment, you can catch a nonstop flight from Salt Lake City to Seattle with the following airlines, including: Delta Air Lines Alaska Airlines Selected airlines are based on historical data collected from flight bookings users made on Trip.com within the last 90 days.

• How long is a flight from Salt Lake City to Seattle?

  It takes about 2 hours 19 minutes to fly from Salt Lake City to Seattle.

• When is the best time to book flights from Salt Lake City to Seattle?

  By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Salt Lake City 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.

• How many flights are there per week from Salt Lake City to Seattle?

  Based on Trip.com data in the past 4 weeks, there is 77 flight per week flying from Salt Lake City to Seattle. You can check the weekly schedule for popular airlines on this route below: Delta Air Lines: S/M/T/W/T/F/S -- DL2874 (07:56)

• How can I find the best deals on flights from Salt Lake City to Seattle?

  To find best deals on flights from Salt Lake City to Seattle, you can use various tools on Trip.com:
  · Be flexible with your travel dates to get the cheapest flight deal. Now the cheapest flight deal is on Thu, Aug 13, with one-way flights priced at just US$118.
  · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is Alaska Airlines.
  · Set up price alerts to easily monitor ticket prices without having to check every day.
  · Check Trip.com 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 Trip.com app users.

• When are flight tickets from Salt Lake City (SLC) to Seattle (SEA) the cheapest?

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

• Which upcoming date is cheapest to fly from Salt Lake City to Seattle on?

  After crunching the numbers on our June flight calendar, it's currently cheapest to fly from Salt Lake City to Seattle on June 23, 2026 with Frontier Airlines, with prices starting at US$99.

• Which airports can I fly to for Seattle from Salt Lake City?

  You can land at any one of the following hubs in Seattle, with Salt Lake City International Airport to Seattle-Tacoma International Airport (SLC-SEA) is by far the most common option on this route: King County (Boeing Field) International Airport (BFI) Kenmore Air Harbor Seaplane Base (LKE) Seattle-Tacoma International Airport (SEA).

• Is there any time difference between Salt Lake City and Seattle?

  The time difference between Seattle and Salt Lake City is 1h.

• How do I change or cancel my ticket from Salt Lake City to Seattle?

  Tickets can only be changed or canceled if permitted by airline policy. To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy. However, if the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.