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Cheap flights from Salt Lake City to Seattle from £53

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 27/2. Fares are subject to change and may not be available on all flights or dates of travel.
SLC — SEA
7 Dec — 14 Dec1
1 adult
1 adult, Economy, 0 bags

Cheapflights Tip: The best prices from Salt Lake City to Seattle/Tacoma Intl are usually found in March or January, booked 40 days in advance, depart on a Wednesday or Thursday and return on a Tuesday

Cheap 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 7 November 2025.

Round-trip from

£89

One-way from

£53

Popular in

July

Cheapest in

March

Average price

£150
Alaska Airlines
  • Alaska Airlines
  • 11/12-15/12
  • Nonstop
  • 4h 23m total
  • Salt Lake City to Seattle
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Delta
  • Delta
  • 3/12
  • Nonstop
  • 2h 40m total
  • Salt Lake City to Seattle
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Highest demand for flights based on searches. 24% potential increase in price (£42 potential increase over avg. return price).
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Cheapest flight prices on average. 4% potential price decrease (£6 potential savings vs. average return price).
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Average for round-trip flights in November 2025
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Find 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 7 November 2025.

Thu 11/1212:54SLC - SEA
Nonstop2h 18mAlaska Airlines
Mon 15/1208:55SEA - SLC
Nonstop2h 05mAlaska Airlines
Deal found 6/11£89
Thu 11/1207:45SLC - SEA
Nonstop2h 40mDelta
Sat 3/105:25SEA - SLC
Nonstop2h 05mDelta
Deal found 7/11£105
Sat 20/1221:50SLC - SEA
Nonstop2h 35mDelta
Tue 23/1205:25SEA - SLC
Nonstop2h 05mDelta
Deal found 6/11£112
Wed 3/1205:30SLC - SEA
1 stop5h 45mSouthwest
Wed 10/1213:10SEA - SLC
1 stop6h 45mSouthwest
Deal found 5/11£115
Thu 20/1120:47SLC - SEA
Nonstop2h 35mAlaska Airlines
Mon 24/1118:05SEA - SLC
Nonstop2h 09mAlaska Airlines
Deal found 5/11£121
Thu 4/1218:35SLC - SEA
1 stop18h 14mAlaska Airlines
Sun 7/1208:55SEA - SLC
Nonstop2h 05mAlaska Airlines
Deal found 5/11£122
Thu 11/1212:54SLC - SEA
Nonstop2h 18mAlaska Airlines
Tue 16/1208:25SEA - SLC
1 stop24h 42mAlaska Airlines
Deal found 5/11£123
Mon 24/1122:45SLC - SEA
Nonstop2h 26mDelta
Wed 3/1205:25SEA - SLC
Nonstop2h 05mDelta
Deal found 6/11£128
Sun 23/1122:45SLC - SEA
Nonstop2h 26mDelta
Mon 8/1205:25SEA - SLC
Nonstop2h 05mDelta
Deal found 6/11£128
Wed 3/1215:37SLC - SEA
Nonstop2h 21mAlaska Airlines
Wed 10/1211:36SEA - SLC
1 stop21h 31mAlaska Airlines
Deal found 5/11£131
Wed 19/1118:25SLC - SEA
1 stop5h 05mSouthwest
Thu 20/1106:15SEA - SLC
1 stop4h 20mSouthwest
Deal found 5/11£137

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 7 November 2025.
Use the filters below to find and compare flights from Salt Lake City to Seattle that are best for you.

Fly from

Salt Lake City

Fly to

Seattle

Route

Depart

Return

Price

Salt Lake CitySeattle

SLC - SEA

SLCSEA

Salt Lake City

Thu 11/12

12:54-14:12

Nonstop2h 18m

Seattle/Tacoma Intl

Mon 15/12

11:31-14:43

Nonstop2h 12m

£89

Salt Lake CitySeattle

SLC - SEA

SLCSEA

Salt Lake City

Sat 6/12

12:54-14:12

Nonstop2h 18m

Seattle/Tacoma Intl

Mon 15/12

11:31-14:43

Nonstop2h 12m

£89

Salt Lake CitySeattle

SLC - SEA

SLCSEA

Salt Lake City

Wed 17/12

13:40-14:59

Nonstop2h 19m

Seattle/Tacoma Intl

Thu 18/12

05:25-08:30

Nonstop2h 05m

£105

Salt Lake CitySeattle

SLC - SEA

SLCSEA

Salt Lake City

Wed 24/12

21:50-23:27

Nonstop2h 37m

Seattle/Tacoma Intl

Mon 29/12

05:25-08:30

Nonstop2h 05m

£105

Salt Lake CitySeattle

SLC - SEA

SLCSEA

Salt Lake City

Thu 12/2

06:20-07:32

Nonstop2h 12m

Seattle/Tacoma Intl

Sun 15/2

20:50-23:47

Nonstop1h 57m

£105

Salt Lake CitySeattle

SLC - SEA

SLCSEA

Salt Lake City

Thu 12/2

22:45-00:09

Nonstop2h 24m

Seattle/Tacoma Intl

Wed 18/2

19:00-22:01

Nonstop2h 01m

£105

Salt Lake CitySeattle

SLC - SEA

SLCSEA

Salt Lake City

Fri 13/2

15:20-16:32

Nonstop2h 12m

Seattle/Tacoma Intl

Sun 15/2

20:50-23:47

Nonstop1h 57m

£105

Salt Lake CitySeattle

SLC - SEA

SLCSEA

Salt Lake City

Tue 17/2

06:20-07:32

Nonstop2h 12m

Seattle/Tacoma Intl

Wed 25/2

13:55-16:54

Nonstop1h 59m

£105

Salt Lake CitySeattle

SLC - SEA

SLCSEA

Salt Lake City

Thu 12/2

17:50-19:02

Nonstop2h 12m

Seattle/Tacoma Intl

Wed 18/2

21:30-09:54

1 stop11h 24m

£108

Salt Lake CitySeattle

SLC - SEA

SLCSEA

Salt Lake City

Thu 26/2

06:20-07:32

Nonstop2h 12m

Seattle/Tacoma Intl

Sun 1/3

23:10-09:54

1 stop9h 44m

£108

Flights are sorted by cheapest return flights first.

Deals found on 5/11

Showing 1-10 of 18 results
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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?

Use this chart to determine the optimal time to book a return flight from Salt Lake City to Seattle. Price data was last updated on 31 October 2025.

To ensure you get the cheapest price possible for a flight from Salt Lake City to Seattle, you should look to book at least 40 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 £28). Flying from Salt Lake City to Seattle in July is currently the most expensive (average of £108). 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 7 November 2025.

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 7 times in the past calendar month.

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

    Airlines like Alaska Airlines and Delta fly from Salt Lake City to Seattle in about 2h 18m. The time it takes to get you to your destination is usually consistent. There are 687 mi between Salt Lake City and Seattle. Generally, flights for this route are direct.

  • 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 Sun Country Air (100%), China Eastern (100%) or Aeromexico (91%) 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 £28). Flying from Salt Lake City to Seattle in July is currently the most expensive (average of £108). 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
Leavenworth
Bothell
SeaTac

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