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Cheap flights from Salt Lake City to Seattle from £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 24/8. Fares are subject to change and may not be available on all flights or dates of travel.
SLC — SEA
29 Aug — 5 Sep1
1 adult
1 adult, Economy, 0 bags

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 30 July 2026.

Fri 4/920:49
SLC
-
SEA
Nonstop2h 16m
Delta
Fri 11/911:22
SEA
-
SLC
Nonstop2h 08m
Delta
Deal found 29/7£186
Sun 13/908:00
SLC
-
SEA
1 stop8h 08m
Frontier
Sun 20/920:15
SEA
-
SLC
2 stops18h 06m
Frontier
Deal found 29/7£186
Fri 28/815:31
SLC
-
SEA
Nonstop2h 16m
Alaska Airlines
Mon 31/820:49
SEA
-
SLC
1 stop21h 07m
Alaska Airlines
Deal found 29/7£188
Mon 14/906:00
SLC
-
SEA
2 stops7h 50m
Southwest
Wed 16/906:25
SEA
-
SLC
2 stops8h 25m
Southwest
Deal found 28/7£189
Mon 14/907:00
SLC
-
SEA
Nonstop2h 24m
Alaska Airlines
Sat 19/908:41
SEA
-
SLC
1 stop9h 15m
Alaska Airlines
Deal found 28/7£192
Mon 17/818:06
SLC
-
SEA
1 stop16h 13m
Alaska Airlines
Tue 18/811:51
SEA
-
SLC
Nonstop2h 13m
Alaska Airlines
Deal found 25/7£192
Thu 3/910:55
SLC
-
SEA
2 stops7h 40m
Southwest
Sat 5/913:55
SEA
-
SLC
1 stop6h 20m
Southwest
Deal found 28/7£193
Fri 21/820:49
SLC
-
SEA
Nonstop2h 16m
Delta
Sat 29/807:15
SEA
-
SLC
Nonstop2h 11m
Delta
Deal found 29/7£194
Sat 5/915:31
SLC
-
SEA
Nonstop2h 16m
Alaska Airlines
Thu 10/907:40
SEA
-
SLC
1 stop12h 19m
Alaska Airlines
Deal found 27/7£195
Sat 22/808:10
SLC
-
SEA
1 stop7h 15m
Southwest
Wed 26/807:10
SEA
-
SLC
2 stops8h 15m
Southwest
Deal found 25/7£197
Tue 13/1017:25
SLC
-
SEA
2 stops7h 30m
Southwest
Sun 18/1009:35
SEA
-
SLC
1 stop10h 15m
Southwest
Deal found 28/7£198
Fri 18/918:26
SLC
-
SEA
1 stop15h 54m
Alaska Airlines
Mon 21/919:50
SEA
-
SLC
Nonstop2h 10m
Alaska Airlines
Deal found 29/7£199

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 30 July 2026.

Round-trip from

£186

One-way from

£108

Popular in

July

Cheapest in

February

Average price

£254

Good one-way deal

£210 or less
Delta
  • Delta
  • 21/8-28/8
  • Nonstop
  • 4h 25m total
  • Salt Lake City to Seattle
Search Deals
Southwest
  • Southwest
  • 24/8
  • 2 total stops
  • 6h 40m total
  • Salt Lake City to Seattle
Search Deals
Highest demand for flights based on searches. 25% potential increase in price (£46 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£6 potential savings vs. average return price).
Search Deals
Average for round-trip flights in July 2026
Search Deals
Price to beat on a one-way flight from Salt Lake City to Seattle/Tacoma Intl.
Search Deals

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 30 July 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 return flight

Salt Lake CitySeattle

SLC - SEA

SLCSEA

Salt Lake City

Thu 3/9

10:55-17:35

2 stops7h 40m

Seattle/Tacoma Intl

Sat 5/9

13:55-21:15

1 stop6h 20m

£193

Salt Lake CitySeattle

SLC - SEA

SLCSEA

Salt Lake City

Fri 16/10

09:42-11:02

Nonstop2h 20m

Seattle/Tacoma Intl

Mon 19/10

16:59-20:05

Nonstop2h 06m

£193

Salt Lake CitySeattle

SLC - SEA

SLCSEA

Salt Lake City

Fri 16/10

20:40-22:05

Nonstop2h 25m

Seattle/Tacoma Intl

Mon 19/10

17:55-21:04

Nonstop2h 09m

£193

Salt Lake CitySeattle

SLC - SEA

SLCSEA

Salt Lake City

Fri 30/10

07:53-15:17

1 stop8h 24m

Seattle/Tacoma Intl

Sun 1/11

14:39-17:43

Nonstop2h 04m

£201

Salt Lake CitySeattle

SLC - SEA

SLCSEA

Salt Lake City

Fri 28/8

19:20-00:20

1 stop6h 00m

Seattle/Tacoma Intl

Fri 4/9

15:25-23:30

2 stops7h 05m

£204
Fastest return journey

Salt Lake CitySeattle

SLC - SEA

SLCSEA

Salt Lake City

Sat 22/8

15:40-16:54

Nonstop2h 14m

Seattle/Tacoma Intl

Sun 30/8

05:45-08:46

Nonstop2h 01m

£212

Salt Lake CitySeattle

SLC - SEA

SLCSEA

Salt Lake City

Sat 5/9

09:40-16:14

1 stop7h 34m

Seattle/Tacoma Intl

Sun 6/9

05:00-13:18

1 stop7h 18m

£216

Salt Lake CitySeattle

SLC - SEA

SLCSEA

Salt Lake City

Wed 26/8

08:15-21:15

2 stops14h 00m

Seattle/Tacoma Intl

Wed 2/9

12:15-19:18

1 stop6h 03m

£219

Salt Lake CitySeattle

SLC - SEA

SLCSEA

Salt Lake City

Thu 17/9

07:06-21:40

1 stop15h 34m

Seattle/Tacoma Intl

Fri 25/9

19:50-23:00

Nonstop2h 10m

£222

Salt Lake CitySeattle

SLC - SEA

SLCSEA

Salt Lake City

Mon 26/10

07:25-15:20

2 stops8h 55m

Seattle/Tacoma Intl

Mon 26/10

18:50-01:05

1 stop5h 15m

£234

Flights are sorted by cheapest return flights first.

Deals found on 29/7

Showing 1-10 of 21 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 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?

To ensure you get the cheapest price possible for a flight from Salt Lake City to Seattle, you should look to book at least 24 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, February is the cheapest month in which you can book a flight from Salt Lake City to Seattle (average of £129). Flying from Salt Lake City to Seattle in July is currently the most expensive (average of £254). 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 30 July 2026.

Unlike at midday, when flights are generally more expensive, you can save up to 84% on flights from Salt Lake City to Seattle by exploring options for tickets in the evening.

How much does it cost for a return flight from Salt Lake City to Seattle?

Airfare is typical for this route at the moment.

Salt Lake City to Seattle flights typically cost between £159 and £261 in September.
The cheapest return price found within the last 5 days was £186 on Delta (4 Sept–11 Sept).

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 2 times in the past calendar month.

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

    Airlines like Alaska Airlines, Delta, and Southwest fly from Salt Lake City to Seattle in about 2h 11m. The time it takes to get you to your destination can typically vary by up to 5h 59m. There are 687 mi between Salt Lake City and Seattle. Both multi-stop and direct flights can be found to your destination and back.

  • 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 Qatar Airways (85%), Korean Air (83%) or Delta (83%) 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 £330 for a flight from Salt Lake City to Seattle. The cheapest flight overall is £196 while the most popular route, (Salt Lake City - Seattle/Tacoma Intl) is currently priced at £170.

  • 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, February is the cheapest month in which you can book a flight from Salt Lake City to Seattle (average of £129). Flying from Salt Lake City to Seattle in July is currently the most expensive (average of £254). 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
Federal Way
SeaTac

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