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Cheap flights from Salt Lake City to Seattle from £112

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 21/10. Fares are subject to change and may not be available on all flights or dates of travel.
SLC — SEA
14 Jul — 21 Jul1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Salt Lake City to Seattle/Tacoma Intl are usually found in February or January, booked 21 days in advance, depart on a Monday or Tuesday and return on a Monday

Cheap flight deals from Salt Lake City to Seattle

Enter your travel dates to find the best prices.

Cheapest flights from Salt Lake City to Seattle
Explore the most affordable flight options available from Salt Lake City to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 14 June 2026.

Wed 12/814:45
SLC
-
SEA
1 stop7h 30m
Southwest
Tue 18/806:25
SEA
-
SLC
2 stops8h 25m
Southwest
Deal found 10/6£166
Tue 25/807:00
SLC
-
SEA
Nonstop2h 24m
Alaska Airlines
Tue 25/810:18
SEA
-
SLC
1 stop7h 38m
Alaska Airlines
Deal found 9/6£167
Wed 7/1011:30
SLC
-
SEA
1 stop7h 20m
Southwest
Wed 21/1011:15
SEA
-
SLC
1 stop5h 40m
Southwest
Deal found 9/6£168
Wed 26/813:05
SLC
-
SEA
2 stops8h 10m
Southwest
Tue 1/907:40
SEA
-
SLC
2 stops7h 45m
Southwest
Deal found 10/6£169
Tue 25/806:25
SLC
-
SEA
1 stop5h 05m
Southwest
Tue 25/815:35
SEA
-
SLC
1 stop5h 55m
Southwest
Deal found 9/6£173
Tue 11/814:39
SLC
-
SEA
1 stop19h 40m
Alaska Airlines
Wed 12/811:51
SEA
-
SLC
Nonstop2h 13m
Alaska Airlines
Deal found 12/6£174
Sat 29/813:10
SLC
-
SEA
Nonstop2h 11m
Alaska Airlines
Wed 2/915:50
SEA
-
SLC
1 stop3h 58m
Alaska Airlines
Deal found 9/6£177
Thu 6/819:20
SLC
-
SEA
1 stop6h 00m
Southwest
Wed 12/807:10
SEA
-
SLC
2 stops8h 15m
Southwest
Deal found 11/6£180
Thu 6/819:15
SLC
-
SEA
1 stop6h 25m
Southwest
Tue 11/808:30
SEA
-
SLC
1 stop9h 35m
Southwest
Deal found 10/6£181
Thu 8/1009:40
SLC
-
SEA
Nonstop2h 22m
Alaska Airlines
Mon 12/1014:39
SEA
-
SLC
Nonstop2h 07m
Alaska Airlines
Deal found 9/6£184
Sat 19/915:20
SLC
-
SEA
2 stops8h 35m
Southwest
Tue 22/905:55
SEA
-
SLC
2 stops8h 05m
Southwest
Deal found 11/6£185

Find flight deals from Salt Lake City to Seattle

Discover tips and strategies to find the most affordable flight options for your journey from Salt Lake City (SLC) to Seattle (SEA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 14 June 2026.

Round-trip from

£166

One-way from

£112

Popular in

June

Cheapest in

February

Average price

£243
Southwest
  • Southwest
  • 12/8-18/8
  • 3 total stops
  • 15h 55m total
  • Salt Lake City to Seattle
Search Deals
Frontier
  • Frontier
  • 21/10
  • 2 total stops
  • 27h 35m total
  • Salt Lake City to Seattle
Search Deals
Highest demand for flights based on searches. 27% potential increase in price (£48 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£6 potential savings vs. average return price).
Search Deals
Average for round-trip flights in June 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Salt Lake City to Seattle that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 14 June 2026.
Use the filters below to find and compare flights from Salt Lake City to Seattle that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

Salt Lake CitySeattle

SLC - SEA

SLCSEA

Salt Lake City

Tue 20/10

08:00-09:33

Nonstop2h 33m

Seattle/Tacoma Intl

Sun 25/10

11:25-14:30

Nonstop2h 05m

£177

Salt Lake CitySeattle

SLC - SEA

SLCSEA

Salt Lake City

Sat 22/8

15:40-16:54

Nonstop2h 14m

Seattle/Tacoma Intl

Sun 30/8

05:45-08:46

Nonstop2h 01m

£177

Salt Lake CitySeattle

SLC - SEA

SLCSEA

Salt Lake City

Thu 17/9

22:40-23:59

Nonstop2h 19m

Seattle/Tacoma Intl

Mon 21/9

05:25-08:30

Nonstop2h 05m

£184

Salt Lake CitySeattle

SLC - SEA

SLCSEA

Salt Lake City

Mon 21/9

10:55-21:15

2 stops11h 20m

Seattle/Tacoma Intl

Wed 30/9

06:40-14:05

1 stop6h 25m

£200

Salt Lake CitySeattle

SLC - SEA

SLCSEA

Salt Lake City

Sun 23/8

17:31-18:44

Nonstop2h 13m

Seattle/Tacoma Intl

Wed 26/8

13:25-16:35

Nonstop2h 10m

£221

Salt Lake CitySeattle

SLC - SEA

SLCSEA

Salt Lake City

Sun 9/8

18:44-20:00

Nonstop2h 16m

Seattle/Tacoma Intl

Sun 16/8

07:18-10:27

Nonstop2h 09m

£229

Salt Lake CitySeattle

SLC - SEA

SLCSEA

Salt Lake City

Sun 19/7

20:46-22:12

Nonstop2h 26m

Seattle/Tacoma Intl

Tue 28/7

11:51-15:04

Nonstop2h 13m

£229

Salt Lake CitySeattle

SLC - SEA

SLCSEA

Salt Lake City

Wed 8/7

11:17-12:30

Nonstop2h 13m

Seattle/Tacoma Intl

Thu 16/7

20:33-23:36

Nonstop2h 03m

£229

Salt Lake CitySeattle

SLC - SEA

SLCSEA

Salt Lake City

Fri 24/7

20:44-22:00

Nonstop2h 16m

Seattle/Tacoma Intl

Mon 27/7

05:30-08:30

Nonstop2h 00m

£229

Salt Lake CitySeattle

SLC - SEA

SLCSEA

Salt Lake City

Wed 5/8

15:40-16:54

Nonstop2h 14m

Seattle/Tacoma Intl

Mon 10/8

05:45-08:46

Nonstop2h 01m

£229

Flights are sorted by cheapest return flights first.

Deals found on 11/6

Showing 1-10 of 24 resultsSorted by cheapest first
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Best time to book a flight from Salt Lake City to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Salt Lake City with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Salt Lake City to Seattle

How far ahead should I book a flight from Salt Lake City to Seattle?

To ensure you get the cheapest price possible for a flight from Salt Lake City to Seattle, you should look to book at least 20 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Salt Lake City to Seattle?

Currently, February is the cheapest month in which you can book a flight from Salt Lake City to Seattle (average of £128). Flying from Salt Lake City to Seattle in June is currently the most expensive (average of £245). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from SLC to SEA?

Find hourly flight availability from Salt Lake City to Seattle. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 14 June 2026.

Unlike at midday, when flights are generally more expensive, you can save up to 71% on flights from Salt Lake City to Seattle by exploring options for tickets in the evening.

How much does it cost for a return flight from Salt Lake City to Seattle?

Related info for your journey

Find useful and relevant information for your journey from Salt Lake City to Seattle. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How popular is this Salt Lake City to Seattle flight route?

    Flights from Salt Lake City to Seattle/Tacoma Intl have been viewed 2 times in the past calendar month.

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

    Airlines like Delta, Southwest, and Alaska Airlines fly from Salt Lake City to Seattle in about 2h 16m. The time it takes to get you to your destination can typically vary by up to 9h 04m. There are 687 mi between Salt Lake City and Seattle. Both multi-stop and direct flights can be found to your destination and back.

  • What are the most reliable airlines from Salt Lake City to Seattle?

    No one likes to see their flight delayed. When booking a flight from Salt Lake City to Seattle consider choosing Horizon Air (95%), Korean Air (94%) or British Airways (93%) as they are the most reliable in getting you off to your destination on time.

  • Can I find deals for flights from Salt Lake City to Seattle that include hotel bookings?

    Yes. In addition to deals on Salt Lake City to Seattle flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Salt Lake City to Seattle?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Salt Lake City to Seattle.

  • Can I find deals for business class flights from Salt Lake City to Seattle?

    Yes. Cheapflights offers flight deals from Salt Lake City to Seattle by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Salt Lake City to Seattle?

    Currently, February is the cheapest month in which you can book a flight from Salt Lake City to Seattle (average of £128). Flying from Salt Lake City to Seattle in June is currently the most expensive (average of £245). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
Tacoma
Federal Way
SeaTac

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