Frontier's UpFront Plus seats guarantee an empty middle seat for extra comfort.
Frontier's Zone 1 boarding is available with a carry-on purchase or special fare bundle.

Most accurate provider | CheapOair 3 stars |
|---|---|
Most trusted provider | CheapOair 3 stars |
Round-trip from | $105 (Kiwi.com) |
One-way from | $61 (Kiwi.com) |
Popular in | December |
Cheapest in | January |
Average price | $156 |
Good round-trip deal | $233 or less |
Good one-way deal | $150 or less |
Fly from
Fly to
Route
Depart
Return
Price
Los AngelesSeattle
LAX - SEA
LAXSEA
Los Angeles
Wed 1/28
5:40 pm-8:36 pm
Nonstop2h 56m
Seattle/Tacoma Intl
Sat 1/31
2:02 pm-4:38 pm
Nonstop2h 36m
Los AngelesSeattle
LAX - SEA
LAXSEA
Los Angeles
Tue 2/17
7:45 am-10:44 am
Nonstop2h 59m
Seattle/Tacoma Intl
Sat 2/21
5:50 pm-8:36 pm
Nonstop2h 46m
Los AngelesSeattle
LAX - SEA
LAXSEA
Los Angeles
Wed 2/18
8:46 am-11:48 am
Nonstop3h 02m
Seattle/Tacoma Intl
Sat 2/21
4:50 pm-7:36 pm
Nonstop2h 46m
Los AngelesSeattle
LAX - SEA
LAXSEA
Los Angeles
Thu 1/22
6:48 pm-9:58 pm
Nonstop3h 10m
Seattle/Tacoma Intl
Thu 1/29
9:00 am-11:59 am
Nonstop2h 59m
Los AngelesSeattle
LAX - SEA
LAXSEA
Los Angeles
Fri 1/23
11:55 am-2:54 pm
Nonstop2h 59m
Seattle/Tacoma Intl
Tue 1/27
11:17 am-1:55 pm
Nonstop2h 38m
Los AngelesSeattle
LAX - SEA
LAXSEA
Los Angeles
Tue 1/27
7:20 am-10:17 am
Nonstop2h 57m
Seattle/Tacoma Intl
Sun 2/1
2:02 pm-4:38 pm
Nonstop2h 36m
Los AngelesSeattle
LAX - SEA
LAXSEA
Los Angeles
Mon 3/30
12:46 pm-3:42 pm
Nonstop2h 56m
Seattle/Tacoma Intl
Sat 4/4
6:25 am-9:09 am
Nonstop2h 44m
Los AngelesSeattle
LAX - SEA
LAXSEA
Los Angeles
Sat 3/7
5:45 pm-10:40 pm
1 stop4h 55m
Seattle/Tacoma Intl
Tue 3/10
7:30 am-11:45 am
1 stop4h 15m
Los AngelesSeattle
LAX - SEA
LAXSEA
Los Angeles
Sat 1/31
4:15 pm-9:12 pm
1 stop4h 57m
Seattle/Tacoma Intl
Mon 2/2
12:24 pm-3:23 pm
Nonstop2h 59m
Los AngelesSeattle
LAX - SEA
LAXSEA
Los Angeles
Thu 1/22
1:56 pm-4:54 pm
Nonstop2h 58m
Seattle/Tacoma Intl
Mon 1/26
8:06 am-10:55 am
Nonstop2h 49m
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*2 stars | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*3 stars |
The price you pay for your flight from Los Angeles to Seattle may vary depending on when you book. For the best chance of a lower fare, look to book 61 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
Currently, January is the cheapest month in which you can book a flight from Los Angeles to Seattle (average of $38). Flying from Los Angeles to Seattle in July is currently the most expensive (average of $134). 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.
When flying from Los Angeles to Seattle, the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 29% versus a flight in the morning.
Travelers seeking maximum savings on their Los Angeles to Seattle flight should consider departing on Thursday afternoons when fares are most often at their lowest. Tuesday mornings flights should be avoided if possible as fares are typically the most expensive at this time.
About 11% of weekly flights between Los Angeles and Seattle have experienced delays in the past year, with the average delay time being 142 minutes.
Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving at night tend to experience delays more often.
Tuesday tends to have the lowest number of delays on this route, whereas Friday has historically faced a higher average of delays compared to other days of the week.
Over the last year, SkyWest Airlines have had the lowest number of delays on this route, with just 3% of flights being delayed.
Comfort
Entertainment
Food
Overall
Crew
Boarding
Reviews
Anonymous,Dec 2025
SJC - SEA
Comfort
Entertainment
Food
Overall
Crew
Boarding
Reviews
Anonymous,Dec 2025
SJC - SEA
Comfort
Entertainment
Food
Overall
Crew
Boarding
Reviews
Anonymous,Dec 2025
SJC - SEA
Comfort
Entertainment
Food
Overall
Crew
Boarding
Reviews
Anonymous,Dec 2025
SJC - SEA
Comfort
Entertainment
Food
Overall
Crew
Boarding
Reviews
Anonymous,Dec 2025
SJC - SEA
Comfort
Entertainment
Food
Overall
Crew
Boarding
Reviews
Anonymous,Dec 2025
SJC - SEA
From the views offered at the top of the Space Needle to browsing the selections at Pike Place Market or whale watching in Puget Sound, Seattle offers visitors a true Pacific Northwest experience. Shoppers, gourmands and those who love to commune with nature all find something to bring them to this vibrant coastal city known for killer coffee and fish throwing. Booking a flight to Seattle from Los Angeles is as easy as choosing Cheapflights.
Residents of Los Angeles looking to escape bright lights and the fast pace of daily life without losing an urban vibe can find what they're looking for in Seattle. Although Seattle is known for being one of the rainiest cities in the country, mild temperatures and a multitude of experiences make up for the sometimes-dreary weather. Summertime is one of the best times to visit the area for a respite from the dry heat of Los Angeles. Outside of the renowned Pike Place Market and Space Needle, the area offers lots of options for a full vacation. Visit Pioneer Square, Seattle's first neighborhood, before heading east to Seattle's Chinatown-International district. Here, you can browse unique shops, sample delicious Asian fare and take in amazing architecture. A trip to Seattle is never complete without a stroll along the waterfront, with its multiple piers and perfect spots for picture-taking and people-watching.
Check out our simple search engine for help in finding flights from Los Angeles to Seattle based on ideal fare, schedule, airline or available airports.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$54 | Average$164 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$76 | Average$148 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$118 | Average$262 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$146 | Average$257 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$150 | Average$238 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$160 | Average$262 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$167 | Average$287 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$177 | Average$318 | FlexibilityNo cancel fee | On-time71% |