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Cheap flights from Salt Lake City to Seattle from £66

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 23/8. Fares are subject to change and may not be available on all flights or dates of travel.
SLC — SEA
18 Jun — 25 Jun1
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 Tuesday or Monday 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 13 June 2025.

Round-trip from

£126

One-way from

£66

Popular in

July

Cheapest in

March

Average price

£219
Hawaiian Airlines
  • Hawaiian Airlines
  • 10/9-10/9
  • Nonstop
  • 4h 25m total
  • Salt Lake City to Seattle
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Delta
  • Delta
  • 23/8
  • Nonstop
  • 2h 16m total
  • Salt Lake City to Seattle
Search Deals
Highest demand for flights based on searches. 22% potential increase in price (£37 potential increase over avg. return price).
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Cheapest flight prices on average. 4% potential price decrease (£5 potential savings vs. average return price).
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Average for round-trip flights in June 2025
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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 13 June 2025.

Wed 10/915:29SLC - SEA
Nonstop2h 16mHawaiian Airlines
Wed 10/918:40SEA - SLC
Nonstop2h 09mHawaiian Airlines
Deal found 10/6£126
Sat 6/917:40SLC - SEA
Nonstop2h 16mDelta
Sat 13/905:45SEA - SLC
Nonstop2h 07mDelta
Deal found 13/6£130
Wed 10/908:30SLC - SEA
2 stops9h 20mAlaska Airlines
Wed 10/920:05SEA - SLC
Nonstop2h 09mAlaska Airlines
Deal found 10/6£148
Mon 4/816:10SLC - SEA
1 stop5h 05mSouthwest
Tue 12/814:25SEA - SLC
2 stops6h 45mSouthwest
Deal found 12/6£149
Wed 6/818:06SLC - SEA
1 stop5h 53mUnited Airlines
Wed 13/809:50SEA - SLC
1 stop6h 53mUnited Airlines
Deal found 11/6£178

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 13 June 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

Wed 10/9

15:29-16:45

Nonstop2h 16m

Seattle/Tacoma Intl

Wed 10/9

18:40-21:49

Nonstop2h 09m

£126

Salt Lake CitySeattle

SLC - SEA

SLCSEA

Salt Lake City

Sat 6/9

17:40-18:56

Nonstop2h 16m

Seattle/Tacoma Intl

Sat 13/9

05:45-08:52

Nonstop2h 07m

£130

Salt Lake CitySeattle

SLC - SEA

SLCSEA

Salt Lake City

Wed 10/9

08:30-16:50

2 stops9h 20m

Seattle/Tacoma Intl

Wed 10/9

20:05-23:14

Nonstop2h 09m

£148

Salt Lake CitySeattle

SLC - SEA

SLCSEA

Salt Lake City

Mon 4/8

16:10-20:15

1 stop5h 05m

Seattle/Tacoma Intl

Tue 12/8

14:25-22:10

2 stops6h 45m

£149

Salt Lake CitySeattle

SLC - SEA

SLCSEA

Salt Lake City

Wed 6/8

18:06-22:59

1 stop5h 53m

Seattle/Tacoma Intl

Wed 13/8

09:50-17:43

1 stop6h 53m

£178

Salt Lake CitySeattle

SLC - SEA

SLCSEA

Salt Lake City

Sat 23/8

20:59-22:15

Nonstop2h 16m

£66

Salt Lake CitySeattle

SLC - SEA

SLCSEA

Salt Lake City

Tue 26/8

19:48-22:29

1 stop3h 41m

£72

Salt Lake CitySeattle

SLC - SEA

SLCSEA

Salt Lake City

Sat 13/9

17:25-21:30

1 stop5h 05m

£73

Salt Lake CitySeattle

SLC - SEA

SLCSEA

Salt Lake City

Sun 31/8

08:30-14:26

1 stop6h 56m

£87

Salt Lake CitySeattle

SLC - SEA

SLCSEA

Salt Lake City

Wed 27/8

16:45-22:59

1 stop7h 14m

£106

Flights are sorted by cheapest return flights first.

Deals found on 11/6

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 9 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 13 June 2025.

Unlike at midday, when flights are generally more expensive, you can save up to 25% on flights from Salt Lake City to Seattle by exploring options for tickets in the morning.

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 13 June 2025.

The most flights from SLC to SEA are scheduled on a Thursday (48 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (26 on average).

Rainfall in Seattle by month

Plan your trip to Seattle by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Seattle ranges from 18.0 - 168.0 inches per month. November is typically the wettest month, when rainfall can reach 168.0 mm. July is typically the driest time to visit Seattle when rainfall is around 18.0 mm.

Temperature in Seattle by month

Plan your trip to Seattle by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Seattle, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 19.0 C. Travellers hoping to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 5.0 C).

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 13 June 2025.
Read reviews from past customers who have flown Alaska Airlines, Southwest and Delta from Salt Lake City to Seattle. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very Good
10,000 reviews
Check prices

Entertainment

7.1

Crew

8.5

Overall

8.0

Comfort

7.8

Boarding

8.1

Food

7.1

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

Entertainment

7.1

Crew

8.5

Overall

8.0

Comfort

7.8

Boarding

8.1

Food

7.1

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
4,287 reviews
Alaska Airlines
8.0
Very Good
10,000 reviews
Check prices

Entertainment

7.1

Crew

8.5

Overall

8.0

Comfort

7.8

Boarding

8.1

Food

7.1

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
7,950 reviews
Alaska Airlines
8.0
Very Good
10,000 reviews
Check prices

Entertainment

7.1

Crew

8.5

Overall

8.0

Comfort

7.8

Boarding

8.1

Food

7.1

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
7.9
Good
2,494 reviews
Alaska Airlines
8.0
Very Good
10,000 reviews
Check prices

Entertainment

7.1

Crew

8.5

Overall

8.0

Comfort

7.8

Boarding

8.1

Food

7.1

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
8,790 reviews
Alaska Airlines
8.0
Very Good
10,000 reviews
Check prices

Entertainment

7.1

Crew

8.5

Overall

8.0

Comfort

7.8

Boarding

8.1

Food

7.1

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, Hawaiian Airlines (£126), Delta (£130), and Alaska Airlines (£148) offers the cheapest pricing from Salt Lake City to Seattle. You may be able to fly from Salt Lake City to Seattle for 26% 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 Delta (£66), Alaska Airlines (£72), and Southwest (£73).

  • 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 Horizon Air (100%), LATAM Airlines (100%) or China Eastern (93%) 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, 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

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