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Cheap flights from Salt Lake City to Seattle from C$ 108

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 26/10. Fares are subject to change and may not be available on all flights or dates of travel.
SLC — SEA
11 Oct — 18 Oct1
1 adult
1 adult, Economy

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 Friday or Thursday and return on a Sunday

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 11 September 2025.

Round-trip from

C$ 172

One-way from

C$ 108

Popular in

July

Cheapest in

March

Average price

C$ 301

Good round-trip deal

C$ 508 or less

Good one-way deal

C$ 238 or less
Southwest
  • Southwest
  • 21/10-22/10
  • 2 total stops
  • 10h 45m total
  • Salt Lake City to Seattle
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Frontier
  • Frontier
  • 26/10
  • 1 total stop
  • 12h 50m total
  • Salt Lake City to Seattle
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Highest demand for flights based on searches. 23% potential increase in price (C$ 137 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease (C$ 20 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Price to beat on a round-trip flight from Salt Lake City to Seattle/Tacoma Intl.
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Price to beat on a one-way flight from Salt Lake City to Seattle/Tacoma Intl.
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Find flight deals from Salt Lake City to Seattle

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 11 September 2025.

Tue 21/106:15 p.m.SLC - SEA
1 stop5h 45mSouthwest
Wed 22/106:15 a.m.SEA - SLC
1 stop5h 00mSouthwest
Deal found 10/9C$ 172
Wed 8/104:10 p.m.SLC - SEA
1 stop7h 50mSouthwest
Wed 15/106:15 a.m.SEA - SLC
1 stop5h 00mSouthwest
Deal found 10/9C$ 195
Sun 26/105:26 p.m.SLC - SEA
Nonstop2h 17mFrontier
Sun 26/108:43 p.m.SEA - SLC
1 stop9h 49mFrontier
Deal found 10/9C$ 204
Sat 18/104:35 p.m.SLC - SEA
1 stop5h 30mSouthwest
Tue 21/106:15 a.m.SEA - SLC
1 stop5h 00mSouthwest
Deal found 11/9C$ 211
Tue 28/106:20 a.m.SLC - SEA
1 stop6h 25mSouthwest
Wed 19/1112:35 p.m.SEA - SLC
2 stops8h 25mSouthwest
Deal found 11/9C$ 220
Tue 4/116:25 p.m.SLC - SEA
1 stop5h 05mSouthwest
Tue 11/118:10 a.m.SEA - SLC
2 stops8h 30mSouthwest
Deal found 10/9C$ 227
Sat 4/105:20 p.m.SLC - SEA
Nonstop2h 16mDelta
Tue 7/105:25 a.m.SEA - SLC
Nonstop1h 59mDelta
Deal found 11/9C$ 245
Mon 8/1211:35 a.m.SLC - SEA
2 stops9h 10mSouthwest
Wed 10/125:15 a.m.SEA - SLC
1 stop5h 20mSouthwest
Deal found 10/9C$ 256
Tue 30/912:25 p.m.SLC - SEA
2 stops8h 30mSouthwest
Tue 7/106:15 a.m.SEA - SLC
1 stop5h 00mSouthwest
Deal found 11/9C$ 258
Sat 1/112:00 p.m.SLC - SEA
1 stop7h 35mSouthwest
Tue 4/118:10 a.m.SEA - SLC
2 stops8h 30mSouthwest
Deal found 11/9C$ 266
Tue 7/1010:53 a.m.SLC - SEA
1 stop27h 50mAlaska Airlines
Wed 8/103:43 p.m.SEA - SLC
Nonstop2h 06mAlaska Airlines
Deal found 10/9C$ 269

Cheapflights Fare Finder

 
Customize 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 629,999 searches. Data last updated 11 September 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

Wed 8/10

4:10 p.m.-11:00 p.m.

1 stop7h 50m

Seattle/Tacoma Intl

Wed 15/10

6:15 a.m.-12:15 p.m.

1 stop5h 00m

C$ 195

Salt Lake CitySeattle

SLC - SEA

SLCSEA

Salt Lake City

Tue 21/10

4:10 p.m.-10:55 p.m.

2 stops7h 45m

Seattle/Tacoma Intl

Wed 22/10

6:15 a.m.-12:15 p.m.

1 stop5h 00m

C$ 241

Salt Lake CitySeattle

SLC - SEA

SLCSEA

Salt Lake City

Sat 1/11

5:10 p.m.-6:24 p.m.

Nonstop2h 14m

Seattle/Tacoma Intl

Tue 4/11

9:46 a.m.-12:50 p.m.

Nonstop2h 04m

C$ 245

Salt Lake CitySeattle

SLC - SEA

SLCSEA

Salt Lake City

Sat 4/10

8:35 p.m.-9:58 p.m.

Nonstop2h 23m

Seattle/Tacoma Intl

Sun 12/10

5:25 a.m.-8:24 a.m.

Nonstop1h 59m

C$ 273

Salt Lake CitySeattle

SLC - SEA

SLCSEA

Salt Lake City

Thu 25/12

11:10 a.m.-12:36 p.m.

Nonstop2h 26m

Seattle/Tacoma Intl

Wed 31/12

5:25 a.m.-8:30 a.m.

Nonstop2h 05m

C$ 273

Salt Lake CitySeattle

SLC - SEA

SLCSEA

Salt Lake City

Fri 17/10

9:05 p.m.-10:22 p.m.

Nonstop2h 17m

Seattle/Tacoma Intl

Wed 22/10

5:25 a.m.-8:24 a.m.

Nonstop1h 59m

C$ 273

Salt Lake CitySeattle

SLC - SEA

SLCSEA

Salt Lake City

Fri 12/12

6:10 p.m.-12:35 a.m.

1 stop7h 25m

Seattle/Tacoma Intl

Mon 15/12

12:10 p.m.-8:55 p.m.

1 stop7h 45m

C$ 285

Salt Lake CitySeattle

SLC - SEA

SLCSEA

Salt Lake City

Tue 21/10

11:30 a.m.-12:47 p.m.

Nonstop2h 17m

Seattle/Tacoma Intl

Wed 22/10

11:15 a.m.-2:17 p.m.

Nonstop2h 02m

C$ 301

Salt Lake CitySeattle

SLC - SEA

SLCSEA

Salt Lake City

Thu 9/10

9:05 p.m.-10:22 p.m.

Nonstop2h 17m

Seattle/Tacoma Intl

Thu 16/10

5:25 a.m.-8:24 a.m.

Nonstop1h 59m

C$ 301

Salt Lake CitySeattle

SLC - SEA

SLCSEA

Salt Lake City

Thu 26/2

8:00 a.m.-9:34 a.m.

Nonstop2h 34m

Seattle/Tacoma Intl

Sun 1/3

7:33 p.m.-10:36 p.m.

Nonstop2h 03m

C$ 301

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/9

Showing 1-10 of 21 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 round-trip 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 round-trip flight from Salt Lake City to Seattle. Price data was last updated on 29 August 2025.

The price you pay for your flight from Salt Lake City to Seattle may vary depending on when you book. For the best chance of a lower fare, look to book 40 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, January is the cheapest month in which you can book a flight from Salt Lake City to Seattle (average of C$ 262). Flying from Salt Lake City to Seattle in December is currently the most expensive (average of C$ 353). 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 11 September 2025.

Unlike in the afternoon, when flights are generally more expensive, you can save up to 66% on flights from Salt Lake City to Seattle by exploring options for tickets at noon.

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?

    This flight path from Salt Lake City to Seattle/Tacoma Intl was viewed by 11 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

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

    Southwest and Delta can get you from Salt Lake City to Seattle in just under 2h 14m. Your travel time can differ by up to 5h 36m. There are 1106 km between Salt Lake City and Seattle. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from Salt Lake City to Seattle one-way?

    For one-way options, check prices for Southwest. According to our data, you can fly for as low as C$ 111. Users have also found prices from C$ 151 and C$ 151 on Alaska Airlines and Delta, respectively.

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

    Before booking your flight to Seattle from Salt Lake City, check out the most reliable airlines to get you to your destination on time: China Eastern (100%), LATAM Airlines (100%), Air France( 91%).

  • What are the cheapest flights from Salt Lake City to Seattle?

    While on average a flight from Salt Lake City to Seattle is generally C$ 410, our data shows the cheapest flight currently is C$ 221. When looking at the most popular route, (Salt Lake City - Seattle/Tacoma Intl), you can expect to pay C$ 488 for that flight.

  • 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 vacation 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, January is the cheapest month in which you can book a flight from Salt Lake City to Seattle (average of C$ 262). Flying from Salt Lake City to Seattle in December is currently the most expensive (average of C$ 353). 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
Leavenworth
SeaTac
Tukwila
Tacoma
Bothell
Cashmere
Renton
Olympia
Marysville
Lynnwood

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Can Cheapflights notify me if prices for flights from Salt Lake City to Seattle become cheaper?

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