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$88+ Cheap flights from Salt Lake City to Seattle (SLC - SEA)

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 8/29. Fares are subject to change and may not be available on all flights or dates of travel.
SLC — SEA
jul. 8 — jul. 151
mar. 7/8
mar. 7/15
1 adult, Economy
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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 Thursday or Friday and return on a Thursday

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 julio 3, 2025.

Round-trip from

$166
(Frontier)

One-way from

$88
(Priceline)

Popular in

July

Cheapest in

March

Average price

$337

Good round-trip deal

$335 or less

Good one-way deal

$165 or less
From Salt Lake City to Seattle/Tacoma Intl
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One-way flight from Salt Lake City to Seattle/Tacoma Intl
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Highest demand for flights based on searches. 23% potential increase in price ($71 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($10 potential savings vs. average RT price).
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Average for round-trip flights in July 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 julio 3, 2025.

This Priceline deal was found by Cheapflights users on 7/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 9/264:02 pmSLC - SEA
1 stop9h 28mFrontier
dom. 9/284:36 pmSEA - SLC
Nonstop2h 09mFrontier
Deal found 7/3$165
This Southwest deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 8/137:30 pmSLC - SEA
1 stop5h 35mSouthwest
mar. 8/192:25 pmSEA - SLC
1 stop7h 55mSouthwest
Deal found 7/2$177
This FlightHub deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 8/79:52 pmSLC - SEA
1 stop19h 33mMultiple Airlines
jue. 8/146:25 amSEA - SLC
1 stop5h 44mMultiple Airlines
Deal found 7/2$196
This Hawaiian Airlines deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 8/233:29 pmSLC - SEA
Nonstop2h 16mHawaiian Airlines
lun. 8/257:14 amSEA - SLC
Nonstop2h 05mHawaiian Airlines
Deal found 7/2$197

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 2,558,603 searches. Data last updated julio 3, 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

vie. 9/26

4:02 pm-12:30 am

1 stop9h 28m

Seattle/Tacoma Intl

dom. 9/28

4:36 pm-7:45 pm

Nonstop2h 09m

$165

Salt Lake CitySeattle

SLC - SEA

SLCSEA

Salt Lake City

mar. 9/23

7:00 am-8:16 am

Nonstop2h 16m

Seattle/Tacoma Intl

mar. 9/23

11:50 am-7:11 pm

1 stop6h 21m

$171

Salt Lake CitySeattle

SLC - SEA

SLCSEA

Salt Lake City

mié. 8/13

5:40 pm-6:56 pm

Nonstop2h 16m

Seattle/Tacoma Intl

mar. 8/19

5:30 am-8:30 am

Nonstop2h 00m

$177

Salt Lake CitySeattle

SLC - SEA

SLCSEA

Salt Lake City

lun. 8/18

12:30 pm-7:00 pm

2 stops7h 30m

Seattle/Tacoma Intl

jue. 8/21

5:20 pm-11:20 pm

1 stop5h 00m

$182

Salt Lake CitySeattle

SLC - SEA

SLCSEA

Salt Lake City

jue. 8/7

9:52 pm-4:25 pm

1 stop19h 33m

Seattle/Tacoma Intl

jue. 8/14

6:25 am-1:09 pm

1 stop5h 44m

$196

Salt Lake CitySeattle

SLC - SEA

SLCSEA

Salt Lake City

sáb. 8/23

3:29 pm-4:45 pm

Nonstop2h 16m

Seattle/Tacoma Intl

lun. 8/25

7:14 am-10:19 am

Nonstop2h 05m

$197

Salt Lake CitySeattle

SLC - SEA

SLCSEA

Salt Lake City

vie. 8/29

3:45 pm-12:34 am

1 stop9h 49m

$88

Salt Lake CitySeattle

SLC - SEA

SLCSEA

Salt Lake City

mié. 8/20

6:25 pm-10:50 pm

1 stop5h 25m

$89

Salt Lake CitySeattle

SLC - SEA

SLCSEA

Salt Lake City

sáb. 7/19

11:56 am-4:25 pm

1 stop5h 29m

$101

Salt Lake CitySeattle

SLC - SEA

SLCSEA

Salt Lake City

mié. 8/13

5:40 pm-6:56 pm

Nonstop2h 16m

$109

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/2

Showing 1-10 of 13 results
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The best insider tips for Salt Lake City to Seattle flights

Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
Cheapflights partnered with top experts to bring you the best recommendations for your Salt Lake City to Seattle trip
Airlines
Alaska Airlines

Alaska offers Wi-Fi for a flat fee, ideal for business travelers needing to work during flights.


Alaska's Premium Class offers extra legroom and free cocktails, enhancing comfort on short domestic routes.

Read more about Alaska Airlinesby Robert Schrader
Airports
SLC

Check in at SLC's expanded security before enjoying The Plaza's local dining options like craft beer and tacos.

Read more about SLCby Ramsey Qubein
SEA

Use the Link light rail from SEA for a budget-friendly ride to downtown Seattle in under 40 minutes.

Read more about SEAby Brandon Schultz
Our travel experts
Robert Schrader

Robert Schrader

Expert on Alaska Airlines

Robert Schrader

Robert Schrader

One of the web's original travel bloggers, Robert launched his first site Leave Your Daily Hell in 2009. Since then, he's expanded into destination niche sites (one each for Japan, Thailand and Taiwan), in addition to having written for the inflight magazines of Singapore Airlines and Korean Air. Overall, he's visited nearly 100 countries, and flies business as often as possible.

Read more
Ramsey Qubein

Ramsey Qubein

Expert on SLC

Ramsey Qubein

Ramsey Qubein

An avid traveler and aviation expert who has visited 173 countries, all 50 states and seven continents, Ramsey Qubein flies nearly 400,000 miles a year. As a North Carolina-based freelance journalist for publications including Conde Nast Traveler, Forbes, USA Today and Bloomberg among others, he explores the latest trends in aviation, hospitality, cruises and business.

Read more
Brandon Schultz

Brandon Schultz

Expert on SEA

Brandon Schultz

Brandon Schultz

Brandon Schultz is an award-winning food and travel writer based in New York City. His work has appeared in Forbes, AAA, Thrillist, Travel + Leisure, and The Daily Meal, among many others, and he is the author of 6 books, including 3 cookbooks.

Read more

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 June 27, 2025.

Booking 40 days in advance of your planned departure date is, on average, the best time to get cheap flights from Salt Lake City to Seattle. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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 $238). Flying from Salt Lake City to Seattle in July is currently the most expensive (average of $390). 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 julio 3, 2025.

A simple way to save on the total cost of your ticket is to fly from Salt Lake City to Seattle in the afternoon. If you’re flexible enough to do this you can expect to save up to 48% on your trip compared to booking a flight in the morning.

What is the cheapest day to fly from Salt Lake City to Seattle?

Use this chart to determine the cheapest time to fly round-trip from Salt Lake City to Seattle. Price data was last updated on June 29, 2025.

Travelers seeking maximum savings on their Salt Lake City to Seattle flight should consider departing on Friday afternoons when fares are most often at their lowest. Monday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Salt Lake City to Seattle

Explore weekly flight availability from Salt Lake City to Seattle. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated julio 3, 2025.

The most flights from SLC to SEA are scheduled on a Thursday (52 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (13 on average).

Reviews of airlines servicing Seattle

Get insights into the airlines that provide service to Seattle. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Seattle. Reviews last updated julio 3, 2025.
Peruse reviews from past customers who have flown with Alaska Airlines, Southwest, and Delta from Salt Lake City to Seattle to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

Entertainment

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

Entertainment

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Southwest
8.0
Very good
4,266 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

Entertainment

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Delta
8.0
Very good
7,982 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

Entertainment

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Hawaiian Airlines
7.8
Good
2,545 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

Entertainment

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
United Airlines
7.4
Good
8,861 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

Entertainment

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

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.

  • What airports do I use to fly from Salt Lake City to Seattle?

    If you book a flight from Salt Lake City to Seattle, you will be flying from Salt Lake City to Seattle/Tacoma Intl. Flights to Seattle/Tacoma Intl (SEA) from Salt Lake City (SLC) take 2h 12m for a nonstop flight. There are 30 flights from Salt Lake City to Seattle per day from 7 airlines.

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

    Within the past month, 196 users have taken a look at flights from Salt Lake City to Seattle/Tacoma Intl.

  • What are the cheapest airlines flying from Salt Lake City to Seattle round-trip?

    Currently priced at $166, Frontier will fly you from Salt Lake City to Seattle and back. In addition to Frontier, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Alaska Airlines and Southwest - these airlines can fly you to your destination from $171 and $177, respectively. You may be able to fly from Salt Lake City to Seattle for 28% less than the average price by searching for these airlines.

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

    $88 is the cheapest one-way deal found within the past few days, from Frontier. You may also be able to find cheap deals on Southwest and Spirit Airlines, with prices starting from $89 and $101, respectively.

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

    The top 3 most reliable airlines when flying from Salt Lake City to Seattle are Singapore Airlines (94%), Finnair (88%) and WestJet (88%).

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

    On average you can expect to pay $1,959 for a flight from Salt Lake City to Seattle. The cheapest flight overall is $93 while the most popular route, (Salt Lake City - Seattle/Tacoma Intl) is currently priced at $148.

  • 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 $238). Flying from Salt Lake City to Seattle in July is currently the most expensive (average of $390). 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

Traveling to a place near Salt Lake City?

Book flights to Salt Lake City if you plan to visit one of these locations
SeaTac
Tukwila
Tacoma
Lakewood
Ocean Shores
Lacey
Leavenworth
Lynnwood
Renton
Olympia
Shoreline
Puyallup
Cle Elum
Centralia
Kent
Federal Way
Chehalis
Kirkland
Aberdeen
Shelton

Browse thousands of different options on Cheapflights for your next trip

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Top 7 airlines flying from Salt Lake City to Seattle

Discover the top 7 airlines that operate flights from Salt Lake City to Seattle. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated julio 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$38Average$150FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$78Average$131FlexibilityNo cancel feeOn-time65%
DeltaCheapest$108Average$255FlexibilityNo cancel feeOn-timeN/A
Hawaiian AirlinesCheapest$118Average$308FlexibilityNo cancel feeOn-time85%
Alaska AirlinesCheapest$171Average$295FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$196Average$376FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$286Average$567FlexibilityNo cancel feeOn-time69%

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