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Seattle-Tacoma International Airport to Ontario International Airport flight

Search for flights from Seattle to Los Angeles and check out affordable one-way and round-trip options.

      • SEA 13:00
        17h 25m
        1 stop
        LAX 14:00
        Seattle - Los Angeles | Tue, Sep 8 | Normal Airline
        LAX 15:00
        6h
        Direct
        SEA 16:00
        Los Angeles - Seattle | Thu, Sep 10 | Normal Airline
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        Search
      • SEA 13:00
        17h 25m
        1 stop
        LAX 14:00
        Seattle - Los Angeles | Tue, Sep 8 | Normal Airline
        LAX 15:00
        6h
        Direct
        SEA 16:00
        Los Angeles - Seattle | Thu, Sep 10 | Normal Airline
        Search
        Search
      • SEA 13:00
        17h 25m
        1 stop
        LAX 14:00
        Seattle - Los Angeles | Tue, Sep 8 | Normal Airline
        LAX 15:00
        6h
        Direct
        SEA 16:00
        Los Angeles - Seattle | Thu, Sep 10 | Normal Airline
        Search
        Search
      • SEA 13:00
        17h 25m
        1 stop
        LAX 14:00
        Seattle - Los Angeles | Tue, Sep 8 | Normal Airline
        LAX 15:00
        6h
        Direct
        SEA 16:00
        Los Angeles - Seattle | Thu, Sep 10 | Normal Airline
        Search
        Search
      • SEA 13:00
        17h 25m
        1 stop
        LAX 14:00
        Seattle - Los Angeles | Tue, Sep 8 | Normal Airline
        LAX 15:00
        6h
        Direct
        SEA 16:00
        Los Angeles - Seattle | Thu, Sep 10 | Normal Airline
        Search
        Search
      • SEA 13:00
        17h 25m
        1 stop
        LAX 14:00
        Seattle - Los Angeles | Tue, Sep 8 | Normal Airline
        LAX 15:00
        6h
        Direct
        SEA 16:00
        Los Angeles - Seattle | Thu, Sep 10 | Normal Airline
        Search
        Search
      • SEA 13:00
        17h 25m
        1 stop
        LAX 14:00
        Seattle - Los Angeles | Tue, Sep 8 | Normal Airline
        LAX 15:00
        6h
        Direct
        SEA 16:00
        Los Angeles - Seattle | Thu, Sep 10 | Normal Airline
        Search
        Search
      • SEA 13:00
        17h 25m
        1 stop
        LAX 14:00
        Seattle - Los Angeles | Tue, Sep 8 | Normal Airline
        LAX 15:00
        6h
        Direct
        SEA 16:00
        Los Angeles - Seattle | Thu, Sep 10 | Normal Airline
        Search
        Search
      • SEA 13:00
        17h 25m
        1 stop
        LAX 14:00
        Seattle - Los Angeles | Tue, Sep 8 | Normal Airline
        LAX 15:00
        6h
        Direct
        SEA 16:00
        Los Angeles - Seattle | Thu, Sep 10 | Normal Airline
        Search
        Search
      • SEA 13:00
        17h 25m
        1 stop
        LAX 14:00
        Seattle - Los Angeles | Tue, Sep 8 | Normal Airline
        LAX 15:00
        6h
        Direct
        SEA 16:00
        Los Angeles - Seattle | Thu, Sep 10 | Normal Airline
        Search
        Search
      • SEA 13:00
        17h 25m
        1 stop
        LAX 14:00
        Seattle - Los Angeles | Tue, Sep 8 | Normal Airline
        Search
        Search
      • SEA 13:00
        17h 25m
        1 stop
        LAX 14:00
        Seattle - Los Angeles | Tue, Sep 8 | Normal Airline
        Search
        Search
      • SEA 13:00
        17h 25m
        1 stop
        LAX 14:00
        Seattle - Los Angeles | Tue, Sep 8 | Normal Airline
        Search
        Search
      • SEA 13:00
        17h 25m
        1 stop
        LAX 14:00
        Seattle - Los Angeles | Tue, Sep 8 | Normal Airline
        Search
        Search
      • SEA 13:00
        17h 25m
        1 stop
        LAX 14:00
        Seattle - Los Angeles | Tue, Sep 8 | Normal Airline
        Search
        Search
      • SEA 13:00
        17h 25m
        1 stop
        LAX 14:00
        Seattle - Los Angeles | Tue, Sep 8 | Normal Airline
        Search
        Search
      • SEA 13:00
        17h 25m
        1 stop
        LAX 14:00
        Seattle - Los Angeles | Tue, Sep 8 | Normal Airline
        Search
        Search
      • SEA 13:00
        17h 25m
        1 stop
        LAX 14:00
        Seattle - Los Angeles | Tue, Sep 8 | Normal Airline
        Search
        Search
      • SEA 13:00
        17h 25m
        1 stop
        LAX 14:00
        Seattle - Los Angeles | Tue, Sep 8 | Normal Airline
        Search
        Search
      • SEA 13:00
        17h 25m
        1 stop
        LAX 14:00
        Seattle - Los Angeles | Tue, Sep 8 | Normal Airline
        Search
        Search

Displayed flight fares from Seattle-Tacoma International Airport to Ontario International Airport are based on average prices across airlines for the next 3 months according to the latest Trip.com data.

Trip.com Price Insights: Flights from Seattle-Tacoma International Airport to Ontario International Airport

What is the cheapest month to fly from Seattle-Tacoma International Airport to Ontario International Airport?

The data is based on the past 12 months and shows the average one-way ticket prices from Seattle-Tacoma International Airport to Ontario International Airport for each month in the Trip.com database.

Based on Trip.com's data from the past 12 months, the cheapest one-way flights from Seattle-Tacoma International Airport to Ontario International Airport are usually in September, with an average price of PKR 44,427. It is best to avoid November, when the average price can reach PKR 82,038.

PKR 82,038
PKR 63,233
PKR 44,427
PKR 25,622
    Cheapest
  • PKR 52,845
    Aug
  • PKR 44,427
    Sep
  • PKR 78,105
    Oct
  • PKR 82,038
    Nov
  • PKR 75,691
    Dec
  • PKR 64,372
    Jan
  • PKR 69,959
    Feb
  • PKR 70,094
    Mar
  • PKR 71,902
    Apr
  • PKR 63,691
    May
  • PKR 48,603
    Jun
  • PKR 63,496
    Jul

What is the cheapest day of the week to fly from Seattle-Tacoma International Airport to Ontario International Airport?

The data is based on the past 12 months and shows the average ticket prices from Seattle-Tacoma International Airport to Ontario International Airport for each day of the week in the Trip.com database.

Based on Trip.com's data from the past 12 months, the cheapest departure day from Seattle-Tacoma International Airport to Ontario International Airport is Thursday, with average prices usually lower than other days. Avoid departing on Monday as prices are typically highest on that day.

PKR 71,201
PKR 63,851
PKR 56,500
PKR 49,150
    Cheapest
  • PKR 71,201
    Mon
  • PKR 64,862
    Tue
  • PKR 64,702
    Wed
  • PKR 56,500
    Thu
  • PKR 70,910
    Fri
  • PKR 58,899
    Sat
  • PKR 63,462
    Sun

About Seattle-Tacoma International Airport and Ontario International Airport

Learn about Seattle-Tacoma International Airport (SEA) and Ontario International Airport (ONT) — including location, terminals, transportation, and travel tips.

Flight distance 1,540.96km

FAQs for Seattle-Tacoma International Airport to Ontario International Airport Flights

  • How long does it take to fly from Seattle-Tacoma International Airport (SEA) to Ontario International Airport (ONT)?

    It takes around 3 hours 4 minutes to fly from Seattle-Tacoma International Airport (sea) to Ontario International Airport(ont).
  • There are around 7 daily flights from Seattle-Tacoma International Airport (SEA) to Ontario International Airport (ONT).
  • Tickets cost around PKR 49,165 in October, making it the cheapest month to book. Seattle-Tacoma International Airport (SEA) to Ontario International Airport (ONT) is a popular route, so don't forget to book your tickets in advance.
  • The route from Seattle-Tacoma International Airport (SEA) to Ontario International Airport (ONT) is quite popular. Without considering departure times or holidays, tickets cost around PKR 65,168 in September, the most expensive month to book this route.
    • The distance from Los Angeles International Airport to downtown is about 19km, by taxi about 30 minutes.
    • The distance from Ontario International Airport to downtown is about 59km, by taxi about 1 hour 10 minutes.
  • Frontier Airlines is a very popular airline operating an average of 4106 flights per month.
  • The earliest flight from Seattle-Tacoma International Airport to Ontario International Airport departs at 08:18, and the last departs at 20:43, with about 31 flights per day. Flight times may change, so please check the latest departure and arrival times before you travel.
  • Seattle-Tacoma International Airport to Ontario International Airport operates around 43 weekly flights, mainly by Alaska Airlines, Delta Air Lines and Frontier Airlines. Actual frequency may vary during holidays and seasonal schedule adjustments.
  • Based on Trip.com flight data for departures within the next 30 days with at most one stop, the average one-way price from Seattle-Tacoma International Airport to Ontario International Airport is PKR 52,039. Prices may vary depending on the departure date, airline, and availability.
  • Yes. Alaska Airlines, Qatar Airways, Delta Air Lines, Korean Air and KLM Royal Dutch Airlines operate direct flights from Seattle-Tacoma International Airport to Ontario International Airport, with an average flight time of 2 hours 27 minutes, and around 28 weekly flights. Actual flight frequency may vary by season.
  • Enter Seattle-Tacoma International Airport and Ontario International Airport, select your departure date and number of passengers, then compare flights by price, flight duration, and baggage allowance. Once you've chosen a fare, review the change and refund rules, fill in passenger details, and pay to receive your booking confirmation.

Find Cheap Flights with Trip.com

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

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Prices displayed on this page are all-inclusive (including taxes, fuel surcharges, civil aviation development fund, etc.), with all fees confirmed before payment. Fees for luggage, meals, Wi-Fi, or other additional services are also included as shown in the flight cards.

Real-time pricing updates

Prices, availability, and travel information on this page have been updated within the last 24 hours—sometimes even in real time. The more popular the route, the more accurate the data.

Change & Cancellation Policy

Trip.com shows the cancellation and change policies for each flight ticket during the booking process, including any fees and applicable conditions. Please check 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 according to the airline's ticket policy.
Cancellation/change due to a flight schedule change:
If the flight schedule has changed 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 visit the customer support pages.