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Cheap flights from Salt Lake City to Seattle from £67

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 26/9. Fares are subject to change and may not be available on all flights or dates of travel.
SLC — SEA
16 Jul — 23 Jul1
1 adult

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 Wednesday and return on a Wednesday

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 July 2025.

Round-trip from

£119

One-way from

£67

Popular in

July

Cheapest in

March

Average price

£248

Good round-trip deal

£240 or less
Southwest
  • Southwest
  • 18/9-24/9
  • 2 total stops
  • 16h 50m total
  • Salt Lake City to Seattle
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Southwest
  • Southwest
  • 26/9
  • 1 total stop
  • 5h 35m total
  • Salt Lake City to Seattle
Search Deals
Highest demand for flights based on searches. 23% potential increase in price (£38 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 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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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 July 2025.

Thu 18/906:05SLC - SEA
1 stop11h 55mSouthwest
Wed 24/917:25SEA - SLC
1 stop4h 55mSouthwest
Deal found 9/7£119
Wed 20/817:40SLC - SEA
Nonstop2h 16mDelta
Tue 2/905:30SEA - SLC
Nonstop2h 00mDelta
Deal found 10/7£130
Sun 24/811:26SLC - SEA
1 stop7h 05mFrontier
Sun 31/810:29SEA - SLC
Nonstop2h 06mFrontier
Deal found 10/7£144
Wed 10/913:35SLC - SEA
Nonstop2h 13mAlaska Airlines
Fri 19/907:14SEA - SLC
Nonstop2h 05mAlaska Airlines
Deal found 9/7£145
Tue 26/813:35SLC - SEA
Nonstop2h 13mHawaiian Airlines
Mon 1/907:50SEA - SLC
1 stop5h 55mHawaiian Airlines
Deal found 10/7£152
Fri 22/816:30SLC - SEA
1 stop7h 29mUnited Airlines
Mon 25/815:19SEA - SLC
1 stop5h 03mUnited Airlines
Deal found 9/7£174

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 11 July 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 18/9

06:05-17:00

1 stop11h 55m

Seattle/Tacoma Intl

Wed 24/9

17:25-23:20

1 stop4h 55m

£119

Salt Lake CitySeattle

SLC - SEA

SLCSEA

Salt Lake City

Wed 20/8

21:03-22:20

Nonstop2h 17m

Seattle/Tacoma Intl

Tue 26/8

13:30-16:40

Nonstop2h 10m

£130

Salt Lake CitySeattle

SLC - SEA

SLCSEA

Salt Lake City

Sun 24/8

11:26-17:31

1 stop7h 05m

Seattle/Tacoma Intl

Sun 31/8

10:29-13:35

Nonstop2h 06m

£144

Salt Lake CitySeattle

SLC - SEA

SLCSEA

Salt Lake City

Wed 10/9

13:35-14:48

Nonstop2h 13m

Seattle/Tacoma Intl

Fri 19/9

07:14-10:19

Nonstop2h 05m

£145

Salt Lake CitySeattle

SLC - SEA

SLCSEA

Salt Lake City

Tue 26/8

13:35-14:48

Nonstop2h 13m

Seattle/Tacoma Intl

Mon 1/9

07:50-14:45

1 stop5h 55m

£152

Salt Lake CitySeattle

SLC - SEA

SLCSEA

Salt Lake City

Fri 22/8

16:30-22:59

1 stop7h 29m

Seattle/Tacoma Intl

Mon 25/8

15:19-21:22

1 stop5h 03m

£174

Salt Lake CitySeattle

SLC - SEA

SLCSEA

Salt Lake City

Fri 26/9

18:30-23:05

1 stop5h 35m

£67

Salt Lake CitySeattle

SLC - SEA

SLCSEA

Salt Lake City

Tue 12/8

13:25-14:43

Nonstop2h 18m

£80

Salt Lake CitySeattle

SLC - SEA

SLCSEA

Salt Lake City

Mon 8/9

15:35-18:45

1 stop4h 10m

£87

Salt Lake CitySeattle

SLC - SEA

SLCSEA

Salt Lake City

Tue 12/8

14:36-21:33

1 stop7h 57m

£88

Flights are sorted by cheapest return flights first.

Deals found on 10/7

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 27 June 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, January is the cheapest month in which you can book a flight from Salt Lake City to Seattle (average of £622). Flying from Salt Lake City to Seattle in July is currently the most expensive (average of £946). 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 July 2025.

Unlike at midday, when flights are generally more expensive, you can save up to 62% on flights from Salt Lake City to Seattle by exploring options for tickets in the afternoon.

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 11 July 2025.

The most flights from SLC to SEA are scheduled on a Thursday (52 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (25 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 11 July 2025.
Get a feel of what it's like to fly with Alaska Airlines, Southwest, andDelta from Salt Lake City to Seattle by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very Good
10,000 reviews
Check prices

Food

7.1

Comfort

7.8

Overall

8.0

Boarding

8.1

Entertainment

7.1

Crew

8.5

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
Check prices

Food

7.1

Comfort

7.8

Overall

8.0

Boarding

8.1

Entertainment

7.1

Crew

8.5

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
4,250 reviews
Alaska Airlines
8.0
Very Good
10,000 reviews
Check prices

Food

7.1

Comfort

7.8

Overall

8.0

Boarding

8.1

Entertainment

7.1

Crew

8.5

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
7,951 reviews
Alaska Airlines
8.0
Very Good
10,000 reviews
Check prices

Food

7.1

Comfort

7.8

Overall

8.0

Boarding

8.1

Entertainment

7.1

Crew

8.5

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
2,565 reviews
Alaska Airlines
8.0
Very Good
10,000 reviews
Check prices

Food

7.1

Comfort

7.8

Overall

8.0

Boarding

8.1

Entertainment

7.1

Crew

8.5

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
8,846 reviews
Alaska Airlines
8.0
Very Good
10,000 reviews
Check prices

Food

7.1

Comfort

7.8

Overall

8.0

Boarding

8.1

Entertainment

7.1

Crew

8.5

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.

  • 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.

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

    According to our current data, Southwest (£119), Delta (£130), and Frontier (£144) offers the cheapest pricing from Salt Lake City to Seattle. You may be able to fly from Salt Lake City to Seattle for 30% 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?

    The cheapet airlines for a one-way flight from Salt Lake City to Seattle are Southwest (£67), Delta (£80), and Alaska Airlines (£87).

  • 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 Singapore Airlines (94%), Finnair (88%) or WestJet (88%) as they are the most reliable in getting you off to your destination on time.

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

    On average you can expect to pay £241 for a flight from Salt Lake City to Seattle. The cheapest flight overall is £238 while the most popular route, (Salt Lake City - Seattle/Tacoma Intl) is currently priced at £169.

  • 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, January is the cheapest month in which you can book a flight from Salt Lake City to Seattle (average of £622). Flying from Salt Lake City to Seattle in July is currently the most expensive (average of £946). 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 Salt Lake City?

Book flights to Salt Lake City if you plan to visit one of these locations
Tacoma
Leavenworth
Bothell
SeaTac

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