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Cheap flights from Salt Lake City to Seattle from £52

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 10/1. Fares are subject to change and may not be available on all flights or dates of travel.
SLC — SEA
11 Jan — 18 Jan1
1 adult
1 adult, Economy, 0 bags

Cheapflights Tip: The best prices from Salt Lake City to Seattle/Tacoma Intl are usually found in March or February, booked 53 days in advance, depart on a Tuesday or Wednesday and return on a Tuesday

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 12 December 2025.

Wed 31/1205:30SLC - SEA
Nonstop2h 30mAlaska Airlines
Sat 3/120:38SEA - SLC
Nonstop2h 08mAlaska Airlines
Deal found 10/12£140
Wed 31/1207:17SLC - SEA
Nonstop2h 48mAlaska Airlines
Mon 5/105:20SEA - SLC
1 stop3h 38mAlaska Airlines
Deal found 10/12£170
Wed 24/1211:10SLC - SEA
Nonstop2h 26mDelta
Tue 30/1205:25SEA - SLC
Nonstop2h 05mDelta
Deal found 10/12£226
Thu 25/1215:15SLC - SEA
Nonstop2h 18mDelta
Thu 1/109:35SEA - SLC
Nonstop2h 11mDelta
Deal found 10/12£233
Thu 25/1212:30SLC - SEA
1 stop5h 28mAlaska Airlines
Thu 1/107:10SEA - SLC
Nonstop2h 06mAlaska Airlines
Deal found 10/12£255
Wed 31/1220:15SLC - SEA
1 stop5h 44mUnited Airlines
Sun 4/105:02SEA - SLC
1 stop7h 22mUnited Airlines
Deal found 10/12£260
Sun 28/1222:45SLC - SEA
Nonstop2h 35mDelta
Thu 1/105:25SEA - SLC
Nonstop2h 05mDelta
Deal found 11/12£263
Wed 31/1215:24SLC - SEA
1 stop4h 05mAlaska Airlines
Thu 1/116:57SEA - SLC
Nonstop2h 05mAlaska Airlines
Deal found 10/12£280
Wed 17/1215:37SLC - SEA
Nonstop2h 21mAlaska Airlines
Tue 6/118:09SEA - SLC
Nonstop2h 08mAlaska Airlines
Deal found 10/12£285
Mon 29/1215:24SLC - SEA
1 stop6h 09mAlaska Airlines
Fri 2/120:38SEA - SLC
Nonstop2h 08mAlaska Airlines
Deal found 12/12£296
Wed 31/1220:15SLC - SEA
1 stop5h 44mUnited Airlines
Thu 1/113:55SEA - SLC
1 stop6h 00mUnited Airlines
Deal found 11/12£300

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 12 December 2025.

Round-trip from

£72

One-way from

£52

Popular in

July

Cheapest in

March

Average price

£147
Alaska Airlines
  • Alaska Airlines
  • 9/1-12/1
  • Nonstop
  • 4h 29m total
  • Salt Lake City to Seattle
Search Deals
Delta
  • Delta
  • 20/1
  • Nonstop
  • 2h 25m total
  • Salt Lake City to Seattle
Search Deals
Highest demand for flights based on searches. 24% potential increase in price (£41 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease (£6 potential savings vs. average return price).
Search Deals
Average for round-trip flights in December 2025
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 12 December 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

Fri 9/1

09:00-10:28

Nonstop2h 28m

Seattle/Tacoma Intl

Mon 12/1

08:10-11:17

Nonstop2h 07m

£72

Salt Lake CitySeattle

SLC - SEA

SLCSEA

Salt Lake City

Thu 5/3

11:14-12:28

Nonstop2h 14m

Seattle/Tacoma Intl

Tue 10/3

20:54-23:58

Nonstop2h 04m

£72

Salt Lake CitySeattle

SLC - SEA

SLCSEA

Salt Lake City

Fri 16/1

07:00-08:25

Nonstop2h 25m

Seattle/Tacoma Intl

Mon 19/1

20:39-23:43

Nonstop2h 04m

£72

Salt Lake CitySeattle

SLC - SEA

SLCSEA

Salt Lake City

Thu 5/3

09:00-10:22

Nonstop2h 22m

Seattle/Tacoma Intl

Mon 9/3

20:54-23:58

Nonstop2h 04m

£72

Salt Lake CitySeattle

SLC - SEA

SLCSEA

Salt Lake City

Thu 8/1

18:28-19:48

Nonstop2h 20m

Seattle/Tacoma Intl

Tue 20/1

17:54-20:58

Nonstop2h 04m

£87

Salt Lake CitySeattle

SLC - SEA

SLCSEA

Salt Lake City

Fri 9/1

07:00-08:25

Nonstop2h 25m

Seattle/Tacoma Intl

Mon 19/1

20:39-23:43

Nonstop2h 04m

£87

Salt Lake CitySeattle

SLC - SEA

SLCSEA

Salt Lake City

Sat 10/1

17:45-19:05

Nonstop2h 20m

Seattle/Tacoma Intl

Tue 20/1

17:54-20:58

Nonstop2h 04m

£87

Salt Lake CitySeattle

SLC - SEA

SLCSEA

Salt Lake City

Wed 14/1

15:40-17:00

Nonstop2h 20m

Seattle/Tacoma Intl

Tue 20/1

14:33-17:34

Nonstop2h 01m

£95

Salt Lake CitySeattle

SLC - SEA

SLCSEA

Salt Lake City

Tue 10/3

22:45-00:01

Nonstop2h 16m

Seattle/Tacoma Intl

Sun 15/3

05:30-08:32

Nonstop2h 02m

£102

Salt Lake CitySeattle

SLC - SEA

SLCSEA

Salt Lake City

Sat 10/1

07:45-09:19

Nonstop2h 34m

Seattle/Tacoma Intl

Sat 17/1

18:05-21:10

Nonstop2h 05m

£102

Flights are sorted by cheapest return flights first.

Deals found on 10/12

Showing 1-10 of 20 results
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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?

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 5 December 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 53 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 £28). Flying from Salt Lake City to Seattle in July is currently the most expensive (average of £105). 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 12 December 2025.

Unlike at midday, when flights are generally more expensive, you can save up to 71% on flights from Salt Lake City to Seattle by exploring options for tickets in the evening.

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 5 times in the past calendar month.

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

    Airlines like Alaska Airlines fly from Salt Lake City to Seattle in about 2h 28m. The time it takes to get you to your destination is usually consistent. There are 687 mi between Salt Lake City and Seattle. Generally, flights for this route are direct.

  • 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 Sun Country Air (100%), China Eastern (100%) or Air France (91%) as they are the most reliable in getting you off to your destination on time.

  • 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 £28). Flying from Salt Lake City to Seattle in July is currently the most expensive (average of £105). 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
Tacoma
Leavenworth
SeaTac

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