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$98+ 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 11/4. Fares are subject to change and may not be available on all flights or dates of travel.
SLC — SEA
Aug 11 — Aug 181
Mon 8/11
Mon 8/18
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 Friday or Thursday 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 August 6, 2025.

Round-trip from

$131
(Kiwi.com)

One-way from

$98
(Alaska Airlines)

Popular in

July

Cheapest in

March

Average price

$266

Good round-trip deal

$259 or less

Good one-way deal

$186 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 ($69 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 August 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 August 6, 2025.

This Kiwi.com deal was found by Cheapflights users on 8/4. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/2211:39 amSLC - SEA
Nonstop2h 13mFrontier
Fri 9/264:40 pmSEA - SLC
Nonstop2h 09mFrontier
Deal found 8/4$131
This Kiwi.com deal was found by Cheapflights users on 8/4. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/212:30 pmSLC - SEA
Nonstop2h 15mFrontier
Fri 8/2210:29 amSEA - SLC
Nonstop2h 06mFrontier
Deal found 8/4$132
This Kiwi.com deal was found by Cheapflights users on 8/5. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/212:30 pmSLC - SEA
Nonstop2h 15mFrontier
Sun 8/2410:29 amSEA - SLC
Nonstop2h 06mFrontier
Deal found 8/5$133
This Frontier deal was found by Cheapflights users on 8/4. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/112:24 pmSLC - SEA
Nonstop2h 21mFrontier
Mon 8/184:54 pmSEA - SLC
Nonstop2h 06mFrontier
Deal found 8/4$136
This Mytrip deal was found by Cheapflights users on 8/5. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/511:37 amSLC - SEA
Nonstop2h 13mFrontier
Sun 9/74:36 pmSEA - SLC
Nonstop2h 09mFrontier
Deal found 8/5$137
This Frontier deal was found by Cheapflights users on 8/4. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/242:48 pmSLC - SEA
Nonstop2h 17mFrontier
Sun 11/23:45 pmSEA - SLC
Nonstop2h 07mFrontier
Deal found 8/4$138
This Frontier deal was found by Cheapflights users on 8/5. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/182:24 pmSLC - SEA
Nonstop2h 21mFrontier
Fri 8/2210:29 amSEA - SLC
Nonstop2h 06mFrontier
Deal found 8/5$141
This Kiwi.com deal was found by Cheapflights users on 8/3. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/222:30 pmSLC - SEA
Nonstop2h 15mFrontier
Mon 8/2510:29 amSEA - SLC
Nonstop2h 06mFrontier
Deal found 8/3$142
This Frontier deal was found by Cheapflights users on 8/4. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/222:30 pmSLC - SEA
Nonstop2h 15mFrontier
Sun 8/2410:29 amSEA - SLC
Nonstop2h 06mFrontier
Deal found 8/4$143
This Frontier deal was found by Cheapflights users on 8/3. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/112:24 pmSLC - SEA
Nonstop2h 21mFrontier
Fri 8/154:54 pmSEA - SLC
Nonstop2h 06mFrontier
Deal found 8/3$151
This Southwest deal was found by Cheapflights users on 8/5. 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.
Tue 9/27:30 pmSLC - SEA
1 stop5h 35mSouthwest
Sat 9/136:25 amSEA - SLC
1 stop5h 15mSouthwest
Deal found 8/5$162

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 August 6, 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

Mon 9/22

11:39 am-12:52 pm

Nonstop2h 13m

Seattle/Tacoma Intl

Fri 9/26

4:40 pm-7:49 pm

Nonstop2h 09m

$131

Salt Lake CitySeattle

SLC - SEA

SLCSEA

Salt Lake City

Thu 8/21

2:30 pm-3:45 pm

Nonstop2h 15m

Seattle/Tacoma Intl

Fri 8/22

10:29 am-1:35 pm

Nonstop2h 06m

$132

Salt Lake CitySeattle

SLC - SEA

SLCSEA

Salt Lake City

Thu 8/21

2:30 pm-3:45 pm

Nonstop2h 15m

Seattle/Tacoma Intl

Sun 8/24

10:29 am-1:35 pm

Nonstop2h 06m

$133

Salt Lake CitySeattle

SLC - SEA

SLCSEA

Salt Lake City

Fri 9/26

11:39 am-12:52 pm

Nonstop2h 13m

Seattle/Tacoma Intl

Sun 9/28

4:36 pm-7:45 pm

Nonstop2h 09m

$136

Salt Lake CitySeattle

SLC - SEA

SLCSEA

Salt Lake City

Fri 9/5

11:37 am-12:50 pm

Nonstop2h 13m

Seattle/Tacoma Intl

Sun 9/7

4:36 pm-7:45 pm

Nonstop2h 09m

$137

Salt Lake CitySeattle

SLC - SEA

SLCSEA

Salt Lake City

Fri 10/24

2:48 pm-4:05 pm

Nonstop2h 17m

Seattle/Tacoma Intl

Sun 11/2

3:45 pm-6:52 pm

Nonstop2h 07m

$138

Salt Lake CitySeattle

SLC - SEA

SLCSEA

Salt Lake City

Mon 8/18

2:24 pm-3:45 pm

Nonstop2h 21m

Seattle/Tacoma Intl

Fri 8/22

10:29 am-1:35 pm

Nonstop2h 06m

$141

Salt Lake CitySeattle

SLC - SEA

SLCSEA

Salt Lake City

Fri 8/22

2:30 pm-3:45 pm

Nonstop2h 15m

Seattle/Tacoma Intl

Mon 8/25

10:29 am-1:35 pm

Nonstop2h 06m

$142

Salt Lake CitySeattle

SLC - SEA

SLCSEA

Salt Lake City

Fri 8/22

2:30 pm-3:45 pm

Nonstop2h 15m

Seattle/Tacoma Intl

Sun 8/24

10:29 am-1:35 pm

Nonstop2h 06m

$143

Salt Lake CitySeattle

SLC - SEA

SLCSEA

Salt Lake City

Tue 9/2

7:30 pm-12:05 am

1 stop5h 35m

Seattle/Tacoma Intl

Sat 9/13

6:25 am-12:40 pm

1 stop5h 15m

$162

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/4

Showing 1-10 of 22 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 August 1, 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 June is currently the most expensive (average of $388). 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 August 6, 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 August 3, 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 August 6, 2025.

The most flights from SLC to SEA are scheduled on a Tuesday (51 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (29 on average).

How much does it cost to fly round-trip from Salt Lake City to Seattle?

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 August 6, 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

Food

7.1

Comfort

7.8

Crew

8.5

Overall

8.0

Boarding

8.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

EUG - SEA

Mobility support was fabulous No flight entertainment that I was aware of.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Comfort

7.8

Crew

8.5

Overall

8.0

Boarding

8.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

EUG - SEA

Mobility support was fabulous No flight entertainment that I was aware of.
Southwest
8.0
Very good
4,246 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Comfort

7.8

Crew

8.5

Overall

8.0

Boarding

8.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

EUG - SEA

Mobility support was fabulous No flight entertainment that I was aware of.
Delta
8.0
Very good
7,985 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Comfort

7.8

Crew

8.5

Overall

8.0

Boarding

8.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

EUG - SEA

Mobility support was fabulous No flight entertainment that I was aware of.
Hawaiian Airlines
7.8
Good
2,623 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Comfort

7.8

Crew

8.5

Overall

8.0

Boarding

8.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

EUG - SEA

Mobility support was fabulous No flight entertainment that I was aware of.
United Airlines
7.4
Good
8,916 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Comfort

7.8

Crew

8.5

Overall

8.0

Boarding

8.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

EUG - SEA

Mobility support was fabulous No flight entertainment that I was aware of.

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 38 flights from Salt Lake City to Seattle per day from 6 airlines.

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

    Within the past month, 192 users have taken a look at flights from Salt Lake City to Seattle/Tacoma Intl.

  • What is the cheapest airline to fly from Salt Lake City to Seattle round-trip?

    Currently priced at $131, 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. You may be able to fly from Salt Lake City to Seattle for 42% less than the average price by searching for this airline.

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

    $98 is the cheapest one-way deal found within the past few days, from Alaska Airlines. You may also be able to find cheap deals on Southwest and Frontier, with prices starting from $99 and $103, 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 (100%), Korean Air (89%) and Air France (85%).

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

    On average you can expect to pay $851 for a flight from Salt Lake City to Seattle. The cheapest flight overall is $98 while the most popular route, (Salt Lake City - Seattle/Tacoma Intl) is currently priced at $138.

  • 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 June is currently the most expensive (average of $388). 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 Seattle?

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

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Top 6 airlines flying from Salt Lake City to Seattle

Discover the top 6 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 August 6, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$38Average$152FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$78Average$127FlexibilityNo cancel feeOn-time65%
DeltaCheapest$107Average$254FlexibilityNo cancel feeOn-timeN/A
Hawaiian AirlinesCheapest$125Average$311FlexibilityNo cancel feeOn-time85%
Alaska AirlinesCheapest$168Average$297FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$196Average$376FlexibilityNo cancel feeOn-time63%

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