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Cheap flights from Salt Lake City to Seattle from C$ 129

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 5/4. Fares are subject to change and may not be available on all flights or dates of travel.
SLC — SEA
10 Mar — 17 Mar1
1 adult

The best prices from Salt Lake City to Seattle/Tacoma Intl are usually found in January or October, booked 18 days in advance, depart on a Wednesday or Tuesday and return on a Friday

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 5 March 2025.

Round-trip from

C$ 256

One-way from

C$ 129

Popular in

July

Cheapest in

January

Average price

C$ 327

Good round-trip deal

C$ 215 or less
Delta
  • Delta
  • 23/4-30/4
  • Nonstop
  • 4h 26m total
  • Salt Lake City to Seattle
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Delta
  • Delta
  • 5/4
  • Nonstop
  • 2h 17m total
  • Salt Lake City to Seattle
Search Deals
Highest demand for flights based on searches. 17% potential increase in price (C$ 106 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 13 potential savings vs. average RT price).
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Average for round-trip flights in March 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 5 March 2025.

Wed 9/43:40 p.m.SLC - SEA
Nonstop2h 17mDelta
Tue 15/46:59 p.m.SEA - SLC
Nonstop1h 57mDelta
Deal found 5/3C$ 256
Wed 16/48:20 a.m.SLC - SEA
1 stop5h 28mHawaiian Airlines
Tue 22/411:34 a.m.SEA - SLC
Nonstop2h 02mHawaiian Airlines
Deal found 5/3C$ 271
Tue 1/45:10 p.m.SLC - SEA
1 stop7h 35mSouthwest
Tue 8/410:10 a.m.SEA - SLC
2 stops7h 55mSouthwest
Deal found 5/3C$ 292
Wed 9/42:29 p.m.SLC - SEA
1 stop5h 32mAlaska Airlines
Wed 16/44:59 p.m.SEA - SLC
Nonstop1h 59mAlaska Airlines
Deal found 5/3C$ 299
Tue 1/412:21 p.m.SLC - SEA
1 stop7h 16mUnited Airlines
Tue 8/49:10 a.m.SEA - SLC
1 stop5h 47mUnited Airlines
Deal found 5/3C$ 415
Wed 5/310:00 a.m.SLC - SEA
2 stops9h 29mMultiple Airlines
Thu 3/48:56 a.m.SEA - SLC
1 stop4h 57mMultiple Airlines
Deal found 4/3C$ 836

Find flights from Salt Lake City to Seattle within your budget

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 629,999 searches. Data last updated 5 March 2025.

Fly from

Salt Lake City

Fly to

Seattle

Route

Depart

Return

Price

Salt Lake CitySeattle

SLC - SEA

SLCSEA

Salt Lake City

Wed 9/4

3:40 p.m.-4:57 p.m.

Nonstop2h 17m

Seattle/Tacoma Intl

Tue 15/4

6:59 p.m.-9:56 p.m.

Nonstop1h 57m

C$ 256

Salt Lake CitySeattle

SLC - SEA

SLCSEA

Salt Lake City

Wed 16/4

8:20 a.m.-12:48 p.m.

1 stop5h 28m

Seattle/Tacoma Intl

Tue 22/4

11:34 a.m.-2:36 p.m.

Nonstop2h 02m

C$ 271

Salt Lake CitySeattle

SLC - SEA

SLCSEA

Salt Lake City

Tue 1/4

5:10 p.m.-11:45 p.m.

1 stop7h 35m

Seattle/Tacoma Intl

Tue 8/4

10:10 a.m.-7:05 p.m.

2 stops7h 55m

C$ 292

Salt Lake CitySeattle

SLC - SEA

SLCSEA

Salt Lake City

Wed 9/4

2:29 p.m.-7:01 p.m.

1 stop5h 32m

Seattle/Tacoma Intl

Tue 15/4

1:55 p.m.-4:54 p.m.

Nonstop1h 59m

C$ 299

Salt Lake CitySeattle

SLC - SEA

SLCSEA

Salt Lake City

Tue 1/4

12:21 p.m.-6:37 p.m.

1 stop7h 16m

Seattle/Tacoma Intl

Tue 8/4

9:10 a.m.-3:57 p.m.

1 stop5h 47m

C$ 415

Salt Lake CitySeattle

SLC - SEA

SLCSEA

Salt Lake City

Wed 2/4

8:23 a.m.-9:15 p.m.

2 stops13h 52m

Seattle/Tacoma Intl

Mon 7/4

7:28 a.m.-3:57 p.m.

2 stops7h 29m

C$ 1,395

Salt Lake CitySeattle

SLC - SEA

SLCSEA

Salt Lake City

Sat 5/4

3:40 p.m.-4:57 p.m.

Nonstop2h 17m

C$ 129

Salt Lake CitySeattle

SLC - SEA

SLCSEA

Salt Lake City

Wed 7/5

1:55 p.m.-7:55 p.m.

1 stop7h 00m

C$ 142

Salt Lake CitySeattle

SLC - SEA

SLCSEA

Salt Lake City

Wed 9/4

5:00 p.m.-11:30 p.m.

1 stop7h 30m

C$ 143

Salt Lake CitySeattle

SLC - SEA

SLCSEA

Salt Lake City

Fri 28/3

8:50 p.m.-9:59 p.m.

Nonstop2h 09m

C$ 201

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/3

Showing 1-10 of 12 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 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.

Travel insights for flights from Salt Lake City to Seattle

Get recent, data-driven insights about flights from Salt Lake City to Seattle including ideal travel times, pricing trends, and more.

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 28 February 2025.

The price you pay for your flight from Salt Lake City to Seattle may vary depending on when you book. For the best chance of a lower fare, look to book 18 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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 C$ 262). Flying from Salt Lake City to Seattle in April is currently the most expensive (average of C$ 362). 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 5 March 2025.

Unlike in the morning, when flights are generally more expensive, you can save up to 64% on flights from Salt Lake City to Seattle by exploring options for tickets at noon.

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 mm 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 5 March 2025.
Read through reviews of airlines operating flights from Salt Lake City to Seattle, such as Southwest, Alaska Airlines and Delta. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,321 reviews
Check prices

Crew

8.7

Boarding

8.2

Comfort

8.1

Entertainment

7.6

Overall

8.1

Food

7.1

Reviews

1 / 20

8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

Southwest
8.1
Very good
4,321 reviews
Southwest
8.1
Very good
4,321 reviews
Check prices

Crew

8.7

Boarding

8.2

Comfort

8.1

Entertainment

7.6

Overall

8.1

Food

7.1

Reviews

1 / 20

8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

Alaska Airlines
8.0
Very good
9,711 reviews
Southwest
8.1
Very good
4,321 reviews
Check prices

Crew

8.7

Boarding

8.2

Comfort

8.1

Entertainment

7.6

Overall

8.1

Food

7.1

Reviews

1 / 20

8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

Delta
8.0
Very good
8,044 reviews
Southwest
8.1
Very good
4,321 reviews
Check prices

Crew

8.7

Boarding

8.2

Comfort

8.1

Entertainment

7.6

Overall

8.1

Food

7.1

Reviews

1 / 20

8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

Hawaiian Airlines
7.9
Good
2,318 reviews
Southwest
8.1
Very good
4,321 reviews
Check prices

Crew

8.7

Boarding

8.2

Comfort

8.1

Entertainment

7.6

Overall

8.1

Food

7.1

Reviews

1 / 20

8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

United Airlines
7.4
Good
8,655 reviews
Southwest
8.1
Very good
4,321 reviews
Check prices

Crew

8.7

Boarding

8.2

Comfort

8.1

Entertainment

7.6

Overall

8.1

Food

7.1

Reviews

1 / 20

8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

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?

    This flight path from Salt Lake City to Seattle/Tacoma Intl was viewed by 11 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

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

    Currently priced at C$ 256, Delta will fly you from Salt Lake City to Seattle and back. In addition to Delta, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Hawaiian Airlines and Southwest - these airlines can fly you to your destination from C$ 271 and C$ 292, respectively. Delta is currently priced 27% below the average price you’ll pay for this route.

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

    For one-way options, check prices for Delta. According to our data, you can fly for as low as C$ 129. Users have also found prices from C$ 142 and C$ 143 on Alaska Airlines and Southwest, respectively.

  • What are the most reliable airlines from Salt Lake City to Seattle?

    Before booking your flight to Seattle from Salt Lake City, check out the most reliable airlines to get you to your destination on time: China Eastern (97%), Korean Air (97%), WestJet( 96%).

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

    While on average a flight from Salt Lake City to Seattle is generally C$ 223, our data shows the cheapest flight currently is C$ 175. When looking at the most popular route, (Salt Lake City - Seattle/Tacoma Intl), you can expect to pay C$ 119 for that flight.

  • 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 C$ 262). Flying from Salt Lake City to Seattle in April is currently the most expensive (average of C$ 362). 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
SeaTac
Tukwila
Marysville
Bothell
Leavenworth
Tacoma
Olympia
Lynnwood

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Yes, Cheapflights offers price alerts on Salt Lake City to Seattle flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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