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Flights from Los Angeles to Seattle

Cheapest airlines flights from Los Angeles to Seattle

You can choose from 5 airlines that fly from Los Angeles to Seattle, including Alaska Airlines, Frontier Airlines, and Delta Air Lines. Frontier Airlines has lowest fares on this route.
Alaska Airlines logo Alaska Airlines
Frontier Airlines logo Frontier Airlines
Delta Air Lines logo Delta Air Lines
Hawaiian Airlines logo Hawaiian Airlines
American Airlines logo American Airlines
Airlines are determined based on actual purchased flight tickets from Los Angeles to Seattle according to previous 12 months data from Trip.com.

Search for direct flights from Los Angeles to Seattle in the next 3 months. Based on Trip.com's latest 7-day flight data, one-way direct flights start at US$46, and round-trip direct flights start at US$57.

      • Cheapest nonstop
        LAX 14:24
        3h 13m
        Nonstop
        SEA 17:37
        Los Angeles - Seattle | Sat, May 16 | Frontier Airlines
        SEA 11:06
        2h 57m
        Nonstop
        LAX 14:03
        Seattle - Los Angeles | Tue, May 19 | Frontier Airlines
        US$57 US$89
        36% off
        36% off
        US$89 US$57
      • LAX 15:15
        3h 20m
        Nonstop
        SEA 18:35
        Los Angeles - Seattle | Wed, May 13 | Frontier Airlines
        SEA 11:06
        2h 57m
        Nonstop
        LAX 14:03
        Seattle - Los Angeles | Sat, May 16 | Frontier Airlines
        US$57 US$89
        36% off
        36% off
        US$89 US$57
      • LAX 14:45
        2h 57m
        Nonstop
        SEA 17:42
        Los Angeles - Seattle | Thu, Apr 30 | Frontier Airlines
        SEA 11:06
        2h 57m
        Nonstop
        LAX 14:03
        Seattle - Los Angeles | Tue, May 5 | Frontier Airlines
        US$58 US$89
        35% off
        35% off
        US$89 US$58
      • LAX 15:15
        3h 20m
        Nonstop
        SEA 18:35
        Los Angeles - Seattle | Thu, May 7 | Frontier Airlines
        SEA 11:06
        2h 57m
        Nonstop
        LAX 14:03
        Seattle - Los Angeles | Tue, May 12 | Frontier Airlines
        US$62
        30% off
        US$89 US$62
      • LAX 15:15
        3h 20m
        Nonstop
        SEA 18:35
        Los Angeles - Seattle | Tue, May 5 | Frontier Airlines
        SEA 11:06
        2h 57m
        Nonstop
        LAX 14:03
        Seattle - Los Angeles | Thu, May 7 | Frontier Airlines
        US$62
        30% off
        US$89 US$62
      • LAX 15:15
        3h 20m
        Nonstop
        SEA 18:35
        Los Angeles - Seattle | Wed, May 6 | Frontier Airlines
        SEA 11:06
        2h 57m
        Nonstop
        LAX 14:03
        Seattle - Los Angeles | Sun, May 10 | Frontier Airlines
        US$63
        28% off
        US$89 US$63
      • LAX 15:15
        3h 20m
        Nonstop
        SEA 18:35
        Los Angeles - Seattle | Thu, May 28 | Frontier Airlines
        SEA 11:21
        2h 57m
        Nonstop
        LAX 14:18
        Seattle - Los Angeles | Mon, Jun 1 | Frontier Airlines
        US$67
        25% off
        US$89 US$67
      • LAX 14:45
        2h 57m
        Nonstop
        SEA 17:42
        Los Angeles - Seattle | Sat, May 2 | Frontier Airlines
        SEA 11:06
        2h 57m
        Nonstop
        LAX 14:03
        Seattle - Los Angeles | Sat, May 9 | Frontier Airlines
        US$74
        17% off
        US$89 US$74
      • LAX 14:24
        3h 13m
        Nonstop
        SEA 17:37
        Los Angeles - Seattle | Sat, May 9 | Frontier Airlines
        SEA 11:06
        2h 57m
        Nonstop
        LAX 14:03
        Seattle - Los Angeles | Tue, May 12 | Frontier Airlines
        US$74
        17% off
        US$89 US$74
      • LAX 14:55
        2h 57m
        Nonstop
        SEA 17:52
        Los Angeles - Seattle | Fri, May 1 | Frontier Airlines
        SEA 11:06
        2h 57m
        Nonstop
        LAX 14:03
        Seattle - Los Angeles | Fri, May 8 | Frontier Airlines
        US$75
        16% off
        US$89 US$75
      • LAX 13:00
        17h 25m
        1 stop
        SEA Invalid Date
        Los Angeles - Seattle | Sat, Apr 25 | Normal Airline
        SEA 15:00
        6h
        Nonstop
        LAX 16:00
        Seattle - Los Angeles | Mon, Apr 27 | Normal Airline
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      • Cheapest nonstop
        LAX 15:15
        3h 20m
        Nonstop
        SEA 18:35
        Los Angeles - Seattle | Tue, Jun 2 | Frontier Airlines
        US$46 US$78
        41% off
        41% off
        US$78 US$46
      • LAX 15:15
        3h 20m
        Nonstop
        SEA 18:35
        Los Angeles - Seattle | Sat, May 30 | Frontier Airlines
        US$46 US$78
        41% off
        41% off
        US$78 US$46
      • LAX 20:09
        2h 49m
        Nonstop
        SEA 22:58
        Los Angeles - Seattle | Wed, Jun 17 | Alaska Airlines
        US$55 US$78
        28% off
        28% off
        US$78 US$55
      • LAX 15:15
        3h 20m
        Nonstop
        SEA 18:35
        Los Angeles - Seattle | Thu, May 14 | Frontier Airlines
        US$55
        28% off
        US$78 US$55
      • LAX 21:08
        2h 51m
        Nonstop
        SEA 23:59
        Los Angeles - Seattle | Wed, Jun 17 | Delta Air Lines
        US$55
        28% off
        US$78 US$55
      • LAX 15:15
        3h 20m
        Nonstop
        SEA 18:35
        Los Angeles - Seattle | Mon, Jun 8 | Frontier Airlines
        US$56
        28% off
        US$78 US$56
      • LAX 15:15
        3h 20m
        Nonstop
        SEA 18:35
        Los Angeles - Seattle | Mon, Jun 1 | Frontier Airlines
        US$56
        28% off
        US$78 US$56
      • LAX 14:45
        2h 57m
        Nonstop
        SEA 17:42
        Los Angeles - Seattle | Wed, May 13 | Frontier Airlines
        US$56
        28% off
        US$78 US$56
      • LAX 20:00
        2h 58m
        Nonstop
        SEA 22:58
        Los Angeles - Seattle | Wed, May 13 | American Airlines
        US$61
        22% off
        US$78 US$61
      • LAX 07:59
        2h 56m
        Nonstop
        SEA 10:55
        Los Angeles - Seattle | Sun, May 31 | Delta Air Lines
        US$66
        15% off
        US$78 US$66
      • LAX 13:00
        17h 25m
        1 stop
        SEA Invalid Date
        Los Angeles - Seattle | Sat, Apr 25 | Normal Airline
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Displayed flight fares from Los Angeles to Seattle are based on average prices across airlines for the next 3 months, according to the latest Trip.com database.

Los Angeles to Seattle Flight Details

The distance between Los Angeles and Seattle is about 1,538 km. The average flying time from Los Angeles to Seattle is around 2 hours 54 minutes. Based on Trip.com's latest data, travel demand is highest in July. The off-season for travel is October.

Cheapest one-way flight priceUS$46
Cheapest return ticket priceUS$57
Cheapest monthOctober
Peak season for travelJuly
Flight distance1,538 km
Average flight time2 hours 54 minutes
Popular airlineAlaska Airlines
Flight statistics for the Los Angeles–Seattle route are based on aggregated booking data from Trip.com over the past 12 months.

Trip.com Price Insights on Flights from Los Angeles to Seattle

Which month has the cheapest one-way flights from Los Angeles to Seattle?

The average price of one-way flights from Los Angeles to Seattle purchased by Trip.com users by month over the past 12 months.

Based on Trip.com’s data, the cheapest month for flights from Los Angeles to Seattle is April, with an average price of US$142; while the month with the highest flight price is usually November, with an average price of up to US$213.

US$213
US$178
US$142
US$107
  • US$142
    Apr
  • US$146
    May
  • US$178
    Jun
  • US$178
    Jul
  • US$195
    Aug
  • US$187
    Sep
  • US$195
    Oct
  • US$213
    Nov
  • US$201
    Dec
  • US$193
    Jan
  • US$190
    Feb
  • US$204
    Mar

Which month has the cheapest round-trip flights from Los Angeles to Seattle?

The average price of round-trip flights from Los Angeles to Seattle purchased by Trip.com users by month over the past 12 months.

Based on data from Trip.com, the lowest prices for round-trip flights from Los Angeles to Seattle are found during April, with an average price of US$172. Conversely, the highest prices are found during November, with an average price of up to US$447.

US$447
US$310
US$172
US$35
  • US$172
    Apr
  • US$252
    May
  • US$310
    Jun
  • US$335
    Jul
  • US$262
    Aug
  • US$342
    Sep
  • US$274
    Oct
  • US$447
    Nov
  • US$377
    Dec
  • US$244
    Jan
  • US$325
    Feb
  • US$220
    Mar

What is the cheapest day of the week to fly from Los Angeles to Seattle?

Average weekly flight prices from Los Angeles to Seattle by travel date (Based on Trip.com’s past 12 months of data)

Based on Trip.com’s past 12 months of flight data, the cheapest day to fly from Los Angeles to Seattle is Thursday, with average prices lower than on other days. Avoid Sunday, as prices are usually highest then.

US$201
US$185
US$168
US$152
    Cheapest
  • US$196
    Mon
  • US$192
    Tue
  • US$170
    Wed
  • US$168
    Thu
  • US$183
    Fri
  • US$175
    Sat
  • US$201
    Sun

When is the cheapest day to fly from Los Angeles to Seattle during International Workers' Day?

Based on Trip.com's data over the past 3 days, these are the lowest one-way flight prices from Los Angeles to Seattle during International Workers' Day.

International Workers' Day is scheduled for May 1. The cheapest flights from Los Angeles to Seattle are available on Apr 28, with fares starting at US$68.

US$119
US$94
US$68
US$43
  • US$68
    28
    Apr
  • US$96
    29
  • US$117
    30
  • US$119
    1
    May
  • US$96
    2
  • US$78
    3

Frequently Asked Questions

  • What are the cheapest flights from Los Angeles to Seattle (LAX-SEA)?

    Based on Trip.com data, Frontier Airlines offers one-way fares as low as US$46 on Cheapest nonstop routes (e.g. LAX to SEA on Tue, Jun 2), while Frontier Airlines offers Cheapest nonstop round-trips from US$57 departing on Sat, May 16 and returning on Tue, May 19.
  • At the moment, you can catch a nonstop flight from Los Angeles to Seattle with the following airlines, including: Alaska Airlines Frontier Airlines Delta Air Lines Hawaiian Airlines American Airlines Selected airlines are based on historical data collected from flight bookings users made on Trip.com within the last 90 days.
  • It takes about 2 hours 54 minutes to fly from Los Angeles to Seattle.
  • By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Los Angeles to Seattle is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.
  • Based on Trip.com data in the past 4 weeks, there is 137 flight per week flying from Los Angeles to Seattle. You can check the weekly schedule for popular airlines on this route below: Delta Air Lines: S/M/T/W/T/F/S -- DL3690 (07:26) Hawaiian Airlines: -/-/-/-/-/-/- -- HA6361 (06:05)
  • To find best deals on flights from Los Angeles to Seattle, you can use various tools on Trip.com:
    · Be flexible with your travel dates to get the cheapest flight deal. Now the cheapest flight deal is on Tue, Jun 2, with one-way flights priced at just US$46.
    · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is Frontier Airlines.
    · Set up price alerts to easily monitor ticket prices without having to check every day.
    · Check Trip.com flight deals and promo codes frequently.
    · Avoid peak season unless you book very early. It seems the peak season for Seattle travel is around July.
    · Get exclusive promo codes for Trip.com app users.
  • The cheapest months to fly from Los Angeles to Seattle is October, when demand for travel is lower.
  • After crunching the numbers on our April flight calendar, it's currently cheapest to fly from Los Angeles to Seattle on April 25, 2026 with Frontier Airlines, with prices starting at US$26.
  • You can land at any one of the following hubs in Seattle, with Los Angeles International Airport to Seattle-Tacoma International Airport (LAX-SEA) is by far the most common option on this route: King County (Boeing Field) International Airport (BFI) Kenmore Air Harbor Seaplane Base (LKE) Seattle-Tacoma International Airport (SEA).
  • The time difference between Seattle and Los Angeles is 0h.
  • Tickets can only be changed or canceled if permitted by airline policy. To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy. However, if the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.

Trip.com Airline Insights on Flights from Los Angeles to Seattle

Which airline offers the cheapest direct flights from Los Angeles to Seattle?

Data is based on the average price of all nonstop flights from Los Angeles to Seattle on Trip.com over the past 12 months.

Based on Trip.com’s data from the past 12 months, Frontier Airlines provides the lowest-priced direct flights from Los Angeles to Seattle, with fares starting at US$126.

US$82
US$126
US$171
US$216
US$260
Frontier Airlines
US$126
Frontier Airlines
Hawaiian Airlines
US$204
Hawaiian Airlines
Delta Air Lines
US$232
Delta Air Lines
Alaska Airlines
US$233
Alaska Airlines
American Airlines
US$240
American Airlines
United Airlines
US$260
United Airlines

Which airline operates the most flights from Los Angeles to Seattle?

Total flights from Los Angeles to Seattle across all airlines. (Based on Trip.com data from the past month)

Based on Trip.com’s data from the past month, Alaska Airlines operates the most frequent flights from Los Angeles to Seattle, with 84 flights per week.

53
63
74
84
Alaska Airlines
84
Alaska Airlines
Hawaiian Airlines
82
Hawaiian Airlines
Air Tahiti Nui
74
Air Tahiti Nui
Delta Air Lines
69
Delta Air Lines
Qatar Airways
66
Qatar Airways
Virgin Atlantic
63
Virgin Atlantic

How many flights fly from Los Angeles to Seattle daily?

The data is based on the flight numbers for each day of the week from Los Angeles to Seattle within the Trip.com database over the past month.

Based on the past month's historical data from Trip.com, the number of flights from Los Angeles to Seattle is the highest on Friday and the lowest on Tuesday.

633
530
427
324
Highest
523
Mon
427
Tue
456
Wed
514
Thu
633
Fri
536
Sat
548
Sun

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Note: Prices shown on this page are the estimated lowest prices found in the last 24 hours and include all taxes and fees.

Book with no extra fees

Prices displayed on this page are all-inclusive (incl. taxes, fuel surcharges, Civil Aviation Development Fund, etc.), and all fees are clearly shown before you pay. Charges for checked baggage, onboard meals, Wi‑Fi, and other optional services are also included where applicable in the flight cards.

Real-time pricing updates

Prices, availability, and travel details on this page have been updated within the last 24 hours, and for many routes are refreshed in real time. The more popular the route, the more accurate and up-to-date the data.

Change & Cancellation Policy

Trip.com shows the change and cancellation rules for each ticket during the booking process, including all related fees and conditions. Please refer to the following scenarios:
Voluntary cancellation/change:
To request a change or cancellation, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and flight segment, and submit your request. Please note that additional charges may apply based on the airline’s fare rules.
Cancellation/change due to a flight schedule change:
If your flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For full details of change and cancellation policies, please refer to the customer support pages.