SLC - SEA

$70 Find Cheap Flights from Salt Lake City to Seattle

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Salt Lake City to Seattle departing on 4/23. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Seattle

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Salt Lake City to Seattle, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Salt Lake City to Seattle, as well as popular online travel agencies
Travelers love KAYAK
41.299.237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$115
Typical prices: $247-$133
Frontier
Wed 4/22Mon 4/27
SLC - SEA • 1 stop
Cheapest non-stop
$117
Typical prices: $262-$134
Frontier
Mon 4/13Fri 4/17
SLC - SEA • Non-stop
Advice from real travelers
AI-powered summary based on content written by travel experts and KAYAK users. AI can make mistakes.
Delta offers free Wi-Fi for SkyMiles members.
Alaska Airlines' baggage guarantee ensures quick claim.
Expert advice
Expert advice
+1
+1
Expert advice
Expert advice
+1
Nonstop flights
Every day
You can fly direct with Alaska Airlines, Delta and Frontier. Average duration is 2h 22m
Direct flights
Direct flights
+1
+1
Direct flights
Direct flights
+1
When to book
in advance
Our data shows that travelers who book at least 4 weeks in advance save around 46% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 23% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Seattle!
Flight Deals
Booking Insights
Expert advice
Flight Deals

Cheap Flights from Salt Lake City to Seattle (SLC-SEA)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Salt Lake City to Seattle that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Salt Lake City to Seattle

Wed, Apr 22 - Mon, Apr 27
Frontier Logo
5:51 pm - 7:51 pm
SLC
-
SEA
27h 00m
1 stop
Frontier Logo
10:11 pm - 11:59 am
SEA
-
SLC
12h 48m
1 stop
$115Frontier
Mon, Apr 13 - Fri, Apr 17
Frontier Logo
6:54 pm - 8:19 pm
SLC
-
SEA
2h 25mnonstop
Frontier Logo
6:10 pm - 9:18 pm
SEA
-
SLC
2h 08mnonstop
$117Frontier
Mon, Apr 13 - Mon, Apr 20
Frontier Logo
6:54 pm - 8:19 pm
SLC
-
SEA
2h 25mnonstop
Frontier Logo
5:30 pm - 8:38 pm
SEA
-
SLC
2h 08mnonstop
$118Frontier
Mon, Apr 13 - Fri, Apr 17
Frontier Logo
6:54 pm - 8:19 pm
SLC
-
SEA
2h 25mnonstop
Frontier Logo
7:12 pm - 8:01 am
SEA
-
SLC
11h 49m
1 stop
$124Frontier
Fri, Apr 17 - Mon, Apr 20
Frontier Logo
3:30 pm - 4:55 pm
SLC
-
SEA
2h 25mnonstop
Frontier Logo
8:45 pm - 11:59 am
SEA
-
SLC
14h 14m
1 stop
$126Frontier
Mon, Apr 13 - Fri, Apr 17
Frontier Logo
6:54 pm - 8:19 pm
SLC
-
SEA
2h 25mnonstop
Frontier Logo
6:10 pm - 9:18 pm
SEA
-
SLC
2h 08mnonstop
$127Frontier
Fri, Apr 17 - Mon, Apr 20
Frontier Logo
3:30 pm - 4:55 pm
SLC
-
SEA
2h 25mnonstop
Frontier Logo
5:30 pm - 8:38 pm
SEA
-
SLC
2h 08mnonstop
$128Frontier
Fri, Apr 17 - Mon, Apr 20
Frontier Logo
3:30 pm - 4:55 pm
SLC
-
SEA
2h 25mnonstop
Frontier Logo
8:45 pm - 11:59 am
SEA
-
SLC
14h 14m
1 stop
$129Frontier
Mon, Apr 20 - Mon, Apr 27
Frontier Logo
9:33 pm - 9:27 am
SLC
-
SEA
12h 54m
1 stop
Frontier Logo
10:11 pm - 11:59 am
SEA
-
SLC
12h 48m
1 stop
$130Frontier
Tue, Apr 28 - Mon, May 4
Frontier Logo
6:19 pm - 9:27 am
SLC
-
SEA
16h 08m
1 stop
Frontier Logo
9:19 pm - 9:30 am
SEA
-
SLC
11h 11m
1 stop
$131Frontier
Booking Insights

KAYAK's insights & trends for Salt Lake City to Seattle flights

Get data-powered insights and trends into flights from Salt Lake City to Seattle to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Salt Lake City to Seattle?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Salt Lake City to Seattle departing in April.

What’s the cheapest day of the week to fly from Salt Lake City to Seattle?

The average price of all round-trip flights from Salt Lake City to Seattle clicked on KAYAK for each day over the last 12 months.

If your flying dates are flexible, you should consider flying to Seattle on a Friday, as we generally find the cheapest rates on that day for this route. On the other hand, Tuesday is the most expensive day to fly from Salt Lake City to Seattle. For your return ticket, we recommend flying on a Friday and avoiding Sundays for the best deals.

What is the cheapest month to fly from Salt Lake City to Seattle?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Salt Lake City to Seattle, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Salt Lake City to Seattle is February, where tickets cost $172 (return) on average. On the other hand, the most expensive months are July and June, where the average cost of round-trip tickets is $337 and $287 respectively.

How far in advance should I book a flight from Salt Lake City to Seattle?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Salt Lake City to Seattle, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Salt Lake City to Seattle, you should book around 4 weeks before departure, which saves you about 46% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 4 weeks before departure.

Expert advice

Expert advice for your flight from Salt Lake City to Seattle

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Stefanie Waldek

Stefanie Waldek

Expert on Qatar Airways, Frontier and Delta

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or on the sea, likely en route to Antarctica or the Arctic.

Harriet Baskas

Harriet Baskas

Expert on Alaska Airlines, SLC and SEA

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Good to know

Low seasonJanuary
Cheapest flight$70
Best time to beat the crowds with an average 21% drop in price.
Most popular time to fly with an average 12% increase in price.
Flight from Salt Lake City to Seattle

When to book flights from Salt Lake City to Seattle

Are your dates flexible? Find out the best times to travel from Salt Lake City to Seattle based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

Flights from Salt Lake City to Seattle: the best tips from KAYAK users' own experiences

Insights shared by verified travelers who flew the route from Salt Lake City to Seattle 
Verified travelerFlew with Alaska Airlines
SLC
-
SEA
Feb 2025
if flying international, arrive three hours prior to departure
Verified travelerFlew with Alaska Airlines
SLC
-
SEA
Mar 2024
Research the details of the flight. Particularly, cost ofluggage, safety record, and seating per square foot. If you arrive safely, your fortunate. It was an excellent flight.

FAQs for booking flights from Salt Lake City to Seattle

  • What is the cheapest flight from Salt Lake City to Seattle?

    In the last 3 days, the lowest price for a flight from Salt Lake City to Seattle was $70 for a one-way ticket and $115 for a round-trip.

  • Do I need a passport to fly between Salt Lake City and Seattle?

    Even though you are not required to have a passport, keep in mind that an official ID is needed to board the airplane.

  • Which airlines offer Wi-Fi service onboard planes from Salt Lake City to Seattle?

    All the following airlines offer inflight Wi-Fi service on the Salt Lake City to Seattle flight route: Delta, Alaska Airlines, JetBlue, Hawaiian Airlines, Aeromexico, WestJet, and American Airlines.

  • Which aircraft models fly most regularly from Salt Lake City to Seattle?

    The Boeing 737-900 is the aircraft model that flies most regularly on the Salt Lake City to Seattle flight route.

  • Which airline alliances offer flights from Salt Lake City to Seattle?

    SkyTeam, and oneworld are the airline alliances operating flights between Salt Lake City and Seattle, with SkyTeam being the most commonly used for this route.

  • On which days can I fly direct from Salt Lake City to Seattle?

    There are nonstop flights from Salt Lake City to Seattle on a daily basis.

  • Which is the best airline for flights from Salt Lake City to Seattle, Alaska Airlines or Delta?

    The two airlines most popular with KAYAK users for flights from Salt Lake City to Seattle are Alaska Airlines and Delta. With an average price for the route of $264 and an overall rating of 7.9, Alaska Airlines is the most popular choice. Delta is also a great choice for the route, with an average price of $274 and an overall rating of 7.9.

  • How does KAYAK find such low prices on flights from Salt Lake City to Seattle?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Salt Lake City to Seattle.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Salt Lake City to Seattle?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Seattle from Salt Lake City is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Salt Lake City to Seattle?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Seattle with an airline and back to Salt Lake City with another airline. Booking your flights between Salt Lake City and SEA can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Salt Lake City to Seattle?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Seattle from Salt Lake City up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Salt Lake City to Seattle

  • Looking for a cheap flight? 25% of our users found flights on this route for $176 or less one-way and $237 or less round-trip.

Prefer to fly direct from Salt Lake City to Seattle?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Salt Lake City to Seattle/Tacoma Intl.
Find which airlines fly direct from Salt Lake City Airport to Seattle/Tacoma Intl Airport, which days they fly and book direct flights.

Direct departures

Salt Lake City to Seattle/Tacoma Intl

Monday

Alaska Airlines,Delta,Frontier

Alaska Airlines,Delta, +1 more

Tuesday

Alaska Airlines,Delta

Alaska Airlines,Delta

Wednesday

Alaska Airlines,Delta

Alaska Airlines,Delta

Thursday

Alaska Airlines,Delta

Alaska Airlines,Delta

Friday

Alaska Airlines,Delta,Frontier

Alaska Airlines,Delta, +1 more

Saturday

Alaska Airlines,Delta

Alaska Airlines,Delta

Sunday

Alaska Airlines,Delta

Alaska Airlines,Delta

See more direct flights

Direct returns

Seattle/Tacoma Intl to Salt Lake City

Monday

Alaska Airlines,Delta,Frontier

Alaska Airlines,Delta, +1 more

Tuesday

Alaska Airlines,Delta

Alaska Airlines,Delta

Wednesday

Alaska Airlines,Delta

Alaska Airlines,Delta

Thursday

Alaska Airlines,Delta

Alaska Airlines,Delta

Friday

Alaska Airlines,Delta,Frontier

Alaska Airlines,Delta, +1 more

Saturday

Alaska Airlines,Delta

Alaska Airlines,Delta

Sunday

Alaska Airlines,Delta

Alaska Airlines,Delta

See more direct flights

Reviews of the top 5 airlines serving from Salt Lake City to Seattle

 
See real verified KAYAK customer reviews for airlines flying from Salt Lake City to Seattle. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Salt Lake City to Seattle? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.9
Alaska AirlinesOverall score based on 12130 reviews
7.0Food
7.8Comfort
8.5Crew
8.1Boarding
7.0Entertainment
Airline reviews

My suggestion is that they should provide USB-C charging ports for modern cell phones.

10.0 ExcellentCharles, Mar 2026
LAS - SEA
Read more Alaska Airlines reviews

My suggestion is that they should provide USB-C charging ports for modern cell phones.

Overall, we had a very good experience with Alaska Airlines on our flight from Honolulu to Seattle. The First Class cabin was comfortable, boarding was smooth, and the crew was friendly and attentive. The meal service was solid and the overall flight felt well organized. One thing that stood out negatively was the drink service. I was in First Class and, while quietly watching movies and not causing any issues, I was cut off after four drinks. I understand safety policies, but the cutoff felt a bit premature given the context.

Everything was excellent. It always is with Alaska Airlines. Thank you. 😊

It was ok! Not fond of sitting in middle seat. Tried to upgrade with my Atmos card but it was a new account and they weren’t able to look up my account details.

The overhead storage was already packed full when I boarded (I fly peasant class), but the attendant played some Tetris and made a spot for my small suitcase. Thanks!

My trip to Seattle from Newark was uncomfortable and there was a maintenance issue that caused a delay which ended up with me being stuck at the Seattle airport on my birthday for almost 12 hrs. The ride itself was very bumpy due to turbulence. I u derstand as my first time flying this could have been normal but all the passengers around me said that this was not what flying is normally like. On my way home I was semi comfortable due to exhaustion and paying $200 in upgrades to have a “better” seat and experience

Provide blankets for main cabin please it’s too cold inside

Wi-Fi cut out for a bit, then resumed. Otherwise flawless flight.

The seating is very small. I have restless legs but the people did everything they could to help me. Unfortunately I asked for a wheelchair between Charleston and Seattle but they didn’t have one for me! The rest of my trip was good.

Helpful, courteous, communitble staff...smooth sailing Loading, unloading.. Thank you

It was fine. 55 minute flight. No snacks or beverage service offered. Boarding went smoothly and my walker was waiting for me on the jet way.

Smaller plane for a longer flight than my first one. Doesn’t make sense.

My flight was cencaled due with the bad weather on Sunday the crew was poorly mistaken my luggage supposed depart with my flight instead I didn’t have my luggage for almost 3 days the website is poorly respond to my complain until I have someone to do it my connection smooth their not even respon or email me even the have my luggage

Delta needs to step its game up get a more reliable internet service. Internet service was non-existent for this flight.

NEVER MADE THE FLIGHT BECAUSE DELTA SAID THEY CAN NOT

8 hours late and the plane smelled like urine, that smell in the morning when your child wet the bed in the night.

Another late night flight and MORE men belligerently drinking and yelling. I had to move from first to economy because they were so obnoxious and disruptive. Crazy to go from a cozy chair to cardboard when you were supposed to be in first. Delta allows was too much drinking which leads to belligerent behavior.

Flight was warm for first few hours and quite rough

Everything was good except wifi and a leaking drink chiller. The floor was all wet and my bag was soaked. Did not notice until debarking. Have not heard back from Delta. Even though this was leg one of an international flight in first class, they denied access to their Sky Club - very disappointing!

Prior to takeoff, the pilot told us there was a possibility of not being able to land and going to Portland. Well that happened, we took off and then did 8 loops around Spokane before the pilot told us we ran out of fuel and had to go to Portland. So for a 35 minute flight we have now been on the plane for 3 hours (boarded at 6:50 am and landed in Portland at 10:30). Then, we just sat in Portland's airport with no updates of when we can start heading back. All of a sudden, our pilots and crew just left, leaving us stranded in a different city and state. We continued to sit in Portland until we finally got a new crew assigned and boarded the plane (This was from 10:30-2). We then sat on the plane for an additional hour before take off because they had to count us multiple times. We finally landed in Spokane at 3:55 PM. So a flight that should have taken at max an hour took us 10 hours and we missed the majority of the recruiting event we went for.

The checking was disaster, the crew wasn't behave well. It took us two hours to check in, after that thr line at the TSA was long, we barely make the flight. Bad airline

Fabulous if you have a portable wheelchair. They can store it in the galley and you can just walk out with it. Really nice and the flat seats are just incredible, very nice. iPads for movies, also pretty nice,

The crew were exceptionally nice and accommodating. My wife was tired after the flight from Haneda, Tokyo. They let her sleep and served her dinner later after she woke up, before we landed in PDX.

No charging outlets worked. Other than collecting trash attendants didn’t come around. No one could hear flight attendants announcements during the flight. Seat pads were horrible. Sitting on a board for 5 hours. What happened to Hawaiian airlines comfort, hospitality, and extras? Our pilots did an excellent job trying to minimize turbulence and incredible job in landing in windy conditions.

I like that if they asked you to checked in a bag at the gate they give you priority to board

Horrible food and crew. Crew were laughing and talking loud while people were trying to sleep

Yall need to integrate your system with Alaska more efficiently. They booted me off the first flight because of a discrepancy on your end.

The crew at Hawaiian Airlines was fantastic. Kind and hard working. The pilots were great with giving us all the updates to make sure we were informed.

Very good. Nice plane and we sat in economy plus - bigger seats, more room. They served a meal and snacks, and the meal was an apple stuffed pancake that was very good! The snack for us was a hummus sandwich - also very good. The flight attendants were helpful and nice. They have plenty of movies and shows to watch. My only negative -- they changed our flights around and did not adjust the layovers, so we ended up with a very long and unnecessary layover in Honolulu.

I liked the Starlink WiFi but didn't like how they said they were the only airline to offer a free meal and it turns out to be just a standalone sandwich and then charge for snacks to go with it. Rather have the free snacks like Southwest, but have the option to purchase a decent meal for a 5+ hour flight.

We had to take a bus to the plane with a old woman and carry on bags, and at landing at the airport we have to wait one hour seating on the plane waiting for a gate. We came back from Australia Bussines class Quantas 16 hours traveling, then wait in Dallas 7 hours for connection...honestly waiting 1 hour more at the plane was the worst part.

Flight delayed twice (not Spirit fault) No food served* No entertainment * *in response to my choices in the rating. None was provided so couldn’t rate properly

Delayed over two hours. Only knew about a 30 minute delay in advance

Poor service but I guess that’s what you get for picking cheap flight. Overacted with all extra up-charge fees, so annoying.

They canceled both the flight to Myrtle beach and the return flight. They are an awful airline and they ruined my trip. I will never book with Spirit again.

The flight was a big joke very uncomfortable I had a horrible experience and I will never fly with them again everything about the flight was bogus and I’m not happy with it at all this experience makes me not want to fly ever again

Pricing, boarding time communication, over priced baggage and overall service is lacking, seating unconfortable

Flight attendant was all so sweet and pilot got us to our destination safely and on time

we boarded the plane and then sat for OVER AN HOUR on it, first waiting for fuel and then the crew timed out. the flight kept getting delayed longer and longer, a 9:30pm flight is still on the ground at 1:15am.

The airplane rattled near the left wing as if several screws were loose. Then after we landed in Fort Lauderdale, we had to sit and wait on the runway for quite some time. It was very scary and TOTALLY unacceptable!

The crew acted like they had never done this and kept barking passive aggressive orders at people. + the security line + the delay + sitting on the tarmac for 2 hours + none of the apps or signage updating with correct times

More inflight connection. And leg space is horrible. And the paying for baggage I'd ridiculous!!!

My flight was originally from SAT to MCO connecting from MCO to ORD. We got diverted to ATL and than Frontier staff there was sooo un helpful first they said they couldn’t give us any accommodation since our flight first got delayed that cancelled and now it’s 221am and I am still in ATL since they said they need to create a new flight my final destination is ORD and I have been delayed twice and cancelled. With no real help the frontier app didn’t work no email updates over all such a horrible experience

There's no seats that lean back with little leg space i wad uncomfortable the entire flight. Your charges for extra baggage is despicable and costly!!

Remind customers of the need to have passport or new ID for boarding.

Flight was canceled. Most upsetting was message from Kayak, stating that the flight was canceled and click with Kayak for details regarding rebook, refund details. THERE'S NO INFORMATION PROVIDED BY KAYAK EXCEPT THAT FLIGHT IS CANCELED. AND NOW THIS SURVEY TO FIND OUT HOW WAS THE FLIGHT !!!!!!!

The flight never took off and we spent 7 hours at the airport

Gate not determined until I got to the airport - hard to plan the trip to the airport.

Our flight was canceled. I will never use Kayak nor Frontier for travel again. The entire experience was a headache.

Frontier.. nickel and dime add-ons. Flight late, on time, late again, last minute gate change, arrival gate required a shuttle to the terminal. They sure keep you guessing.. if you like a little chaos and airport anxiety, this is the airline for you!

Everything you need to know for your flight from Salt Lake City to Seattle

Information on your arrival and departure airports