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Cheap flights from Salt Lake City to Seattle from C$ 135

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 13/5. Fares are subject to change and may not be available on all flights or dates of travel.
SLC — SEA
26 May — 2 Jun1
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 36 days in advance, depart on a Wednesday or Monday and return on a Saturday

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 26 April 2026.

Wed 13/59:27 a.m.
SLC
-
SEA
Nonstop2h 27m
Alaska Airlines
Mon 18/57:50 p.m.
SEA
-
SLC
Nonstop2h 07m
Alaska Airlines
Deal found 22/4C$ 187
Thu 11/69:25 p.m.
SLC
-
SEA
1 stop5h 15m
Southwest
Tue 23/65:40 a.m.
SEA
-
SLC
1 stop6h 00m
Southwest
Deal found 23/4C$ 215
Thu 14/57:55 p.m.
SLC
-
SEA
Nonstop2h 25m
Alaska Airlines
Mon 18/57:05 a.m.
SEA
-
SLC
Nonstop2h 10m
Alaska Airlines
Deal found 22/4C$ 242
Fri 15/54:29 p.m.
SLC
-
SEA
1 stop18h 20m
Frontier
Mon 18/511:37 a.m.
SEA
-
SLC
1 stop20h 53m
Frontier
Deal found 21/4C$ 249
Sat 23/57:55 p.m.
SLC
-
SEA
Nonstop2h 25m
Alaska Airlines
Tue 26/57:05 a.m.
SEA
-
SLC
Nonstop2h 10m
Alaska Airlines
Deal found 21/4C$ 256
Wed 10/611:10 a.m.
SLC
-
SEA
2 stops14h 30m
Southwest
Sat 13/63:55 p.m.
SEA
-
SLC
1 stop6h 05m
Southwest
Deal found 22/4C$ 266
Sat 16/52:00 p.m.
SLC
-
SEA
Nonstop2h 23m
Delta
Wed 27/59:25 a.m.
SEA
-
SLC
Nonstop2h 09m
Delta
Deal found 23/4C$ 269
Tue 18/86:06 p.m.
SLC
-
SEA
1 stop16h 17m
Alaska Airlines
Wed 19/811:27 a.m.
SEA
-
SLC
Nonstop2h 09m
Alaska Airlines
Deal found 23/4C$ 275
Thu 4/69:25 p.m.
SLC
-
SEA
1 stop5h 15m
Southwest
Fri 12/65:20 p.m.
SEA
-
SLC
1 stop7h 05m
Southwest
Deal found 22/4C$ 279
Wed 20/511:02 p.m.
SLC
-
SEA
Nonstop2h 10m
Delta
Sun 24/55:30 a.m.
SEA
-
SLC
Nonstop2h 08m
Delta
Deal found 21/4C$ 283
Wed 13/56:25 p.m.
SLC
-
SEA
1 stop5h 30m
Southwest
Wed 20/55:30 a.m.
SEA
-
SLC
1 stop6h 10m
Southwest
Deal found 22/4C$ 287
Tue 3/1110:51 a.m.
SLC
-
SEA
1 stop6h 56m
Alaska Airlines
Tue 3/117:16 p.m.
SEA
-
SLC
Nonstop2h 06m
Alaska Airlines
Deal found 21/4C$ 290

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 26 April 2026.

Round-trip from

C$ 187

One-way from

C$ 135

Popular in

July

Cheapest in

February

Average price

C$ 269

Good round-trip deal

C$ 772 or less
Alaska Airlines
  • Alaska Airlines
  • 15/6-24/6
  • Nonstop
  • 4h 29m total
  • Salt Lake City to Seattle
Search Deals
Alaska Airlines
  • Alaska Airlines
  • 22/7
  • Nonstop
  • 2h 12m total
  • Salt Lake City to Seattle
Search Deals
Highest demand for flights based on searches. 23% potential increase in price (C$ 129 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (C$ 20 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2026
Search Deals
Price to beat on a round-trip flight from Salt Lake City to Seattle/Tacoma Intl.
Search Deals

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 26 April 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 round-trip

Salt Lake CitySeattle

SLC - SEA

SLCSEA

Salt Lake City

Fri 15/5

7:55 p.m.-9:20 p.m.

Nonstop2h 25m

Seattle/Tacoma Intl

Mon 18/5

7:50 p.m.-10:57 p.m.

Nonstop2h 07m

C$ 297

Salt Lake CitySeattle

SLC - SEA

SLCSEA

Salt Lake City

Sat 16/5

8:41 p.m.-10:03 p.m.

Nonstop2h 22m

Seattle/Tacoma Intl

Mon 18/5

7:59 p.m.-11:10 p.m.

Nonstop2h 11m

C$ 310

Salt Lake CitySeattle

SLC - SEA

SLCSEA

Salt Lake City

Sun 24/5

7:55 p.m.-9:20 p.m.

Nonstop2h 25m

Seattle/Tacoma Intl

Sun 31/5

7:05 a.m.-10:15 a.m.

Nonstop2h 10m

C$ 338

Salt Lake CitySeattle

SLC - SEA

SLCSEA

Salt Lake City

Fri 29/5

7:59 a.m.-9:15 a.m.

Nonstop2h 16m

Seattle/Tacoma Intl

Sun 31/5

5:30 a.m.-8:38 a.m.

Nonstop2h 08m

C$ 351

Salt Lake CitySeattle

SLC - SEA

SLCSEA

Salt Lake City

Thu 21/5

2:00 p.m.-3:23 p.m.

Nonstop2h 23m

Seattle/Tacoma Intl

Sat 23/5

5:45 p.m.-8:56 p.m.

Nonstop2h 11m

C$ 365

Salt Lake CitySeattle

SLC - SEA

SLCSEA

Salt Lake City

Thu 21/5

8:41 p.m.-10:03 p.m.

Nonstop2h 22m

Seattle/Tacoma Intl

Thu 28/5

5:30 a.m.-8:38 a.m.

Nonstop2h 08m

C$ 379

Salt Lake CitySeattle

SLC - SEA

SLCSEA

Salt Lake City

Tue 8/9

10:39 a.m.-3:51 p.m.

1 stop6h 12m

Seattle/Tacoma Intl

Tue 15/9

10:54 a.m.-4:48 p.m.

1 stop4h 54m

C$ 392

Salt Lake CitySeattle

SLC - SEA

SLCSEA

Salt Lake City

Thu 10/9

5:10 p.m.-6:29 p.m.

Nonstop2h 19m

Seattle/Tacoma Intl

Sun 13/9

5:45 a.m.-8:49 a.m.

Nonstop2h 04m

C$ 406
Quickest round-trip

Salt Lake CitySeattle

SLC - SEA

SLCSEA

Salt Lake City

Sun 2/8

8:44 p.m.-10:00 p.m.

Nonstop2h 16m

Seattle/Tacoma Intl

Sat 8/8

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

Nonstop2h 00m

C$ 406

Salt Lake CitySeattle

SLC - SEA

SLCSEA

Salt Lake City

Wed 24/6

7:50 a.m.-9:05 a.m.

Nonstop2h 15m

Seattle/Tacoma Intl

Sat 4/7

11:05 a.m.-2:11 p.m.

Nonstop2h 06m

C$ 406

Flights are sorted by cheapest round-trip flights first.

Deals found on 25/4

Showing 1-10 of 23 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 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?

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 35 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, February is the cheapest month in which you can book a flight from Salt Lake City to Seattle (average of C$ 235). Flying from Salt Lake City to Seattle in July is currently the most expensive (average of C$ 460). 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 26 April 2026.

Unlike in the evening, when flights are generally more expensive, you can save up to 65% on flights from Salt Lake City to Seattle by exploring options for tickets in the afternoon.

How much does it cost to fly round-trip 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?

    This flight path from Salt Lake City to Seattle/Tacoma Intl was viewed by 10 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?

    Alaska Airlines, Southwest, and United Airlines can get you from Salt Lake City to Seattle in just under 2h 25m. Your travel time can differ by up to 5h 05m. There are 1106 km between Salt Lake City and Seattle. This flight may include one or multiple stops.

  • 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: SkyWest Airlines (97%), Icelandair (93%), Korean Air( 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$ 816, our data shows the cheapest flight currently is C$ 683. When looking at the most popular route, (Salt Lake City - Seattle/Tacoma Intl), you can expect to pay C$ 283 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, February is the cheapest month in which you can book a flight from Salt Lake City to Seattle (average of C$ 235). Flying from Salt Lake City to Seattle in July is currently the most expensive (average of C$ 460). 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
SeaTac
Leavenworth
Mukilteo
Kent
Tacoma
Bothell
Cashmere
Olympia
Renton
Marysville
Lynnwood
Kirkland
Tukwila

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Cheapflights does show flights with no change fees to all users. To see these options for flights from Salt Lake City to Seattle, users can toggle the no change fees filter when performing a flight search.

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

Yes, Cheapflights offers price alerts on Salt Lake City to Seattle flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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