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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.

      • Cheapest nonstop
        SEA 08:15
        2h 44m
        Direct
        ONT 10:59
        Seattle - Ontario | Sun, Jan 25 | Alaska Airlines
        ONT 06:00
        2h 54m
        Direct
        SEA 08:54
        Ontario - Seattle | Sun, Feb 1 | Alaska Airlines
        CAD 114 CAD 134
        15% off
        15% off
        CAD 134 CAD 114
      • SEA 11:15
        2h 41m
        Direct
        ONT 13:56
        Seattle - Ontario | Sun, Jan 25 | Delta Air Lines
        ONT 07:30
        3h 6m
        Direct
        SEA 10:36
        Ontario - Seattle | Sun, Feb 1 | Delta Air Lines
        CAD 114 CAD 134
        15% off
        15% off
        CAD 134 CAD 114
      • SEA 08:15
        2h 44m
        Direct
        ONT 10:59
        Seattle - Ontario | Sun, Jan 25 | Hawaiian Airlines
        ONT 06:00
        2h 54m
        Direct
        SEA 08:54
        Ontario - Seattle | Sun, Feb 1 | Hawaiian Airlines
        CAD 114 CAD 134
        15% off
        15% off
        CAD 134 CAD 114
      • SEA 18:00
        2h 36m
        Direct
        ONT 20:36
        Seattle - Ontario | Tue, Feb 3 | Hawaiian Airlines
        ONT 06:00
        2h 54m
        Direct
        SEA 08:54
        Ontario - Seattle | Sun, Feb 8 | Hawaiian Airlines
        CAD 115
        14% off
        CAD 134 CAD 115
      • SEA 20:05
        2h 39m
        Direct
        ONT 22:44
        Seattle - Ontario | Tue, Mar 3 | Hawaiian Airlines
        ONT 08:01
        3h
        Direct
        SEA 11:01
        Ontario - Seattle | Thu, Mar 5 | Frontier Airlines
        CAD 117
        13% off
        CAD 134 CAD 117
      • SEA 20:05
        2h 39m
        Direct
        ONT 22:44
        Seattle - Ontario | Tue, Mar 3 | Alaska Airlines
        ONT 08:01
        3h
        Direct
        SEA 11:01
        Ontario - Seattle | Thu, Mar 5 | Frontier Airlines
        CAD 117
        12% off
        CAD 134 CAD 117
      • SEA 12:31
        2h 37m
        Direct
        ONT 15:08
        Seattle - Ontario | Wed, Jan 21 | Hawaiian Airlines
        ONT 11:53
        2h 51m
        Direct
        SEA 14:44
        Ontario - Seattle | Wed, Jan 28 | Hawaiian Airlines
        CAD 119
        11% off
        CAD 134 CAD 119
      • SEA 18:00
        2h 36m
        Direct
        ONT 20:36
        Seattle - Ontario | Wed, Jan 21 | Alaska Airlines
        ONT 11:53
        2h 51m
        Direct
        SEA 14:44
        Ontario - Seattle | Wed, Jan 28 | Alaska Airlines
        CAD 123
        8% off
        CAD 134 CAD 123
      • SEA 18:00
        2h 36m
        Direct
        ONT 20:36
        Seattle - Ontario | Tue, Feb 3 | Alaska Airlines
        ONT 06:00
        2h 54m
        Direct
        SEA 08:54
        Ontario - Seattle | Sun, Feb 8 | Alaska Airlines
        CAD 123
        8% off
        CAD 134 CAD 123
      • SEA 08:15
        2h 44m
        Direct
        ONT 10:59
        Seattle - Ontario | Thu, Feb 5 | Alaska Airlines
        ONT 08:01
        3h
        Direct
        SEA 11:01
        Ontario - Seattle | Thu, Feb 12 | Frontier Airlines
        CAD 124
        7% off
        CAD 134 CAD 124
      • SEA 13:00
        17h 25m
        1 stop
        LAX Invalid Date
        Seattle - Los Angeles | Fri, Jan 23 | Normal Airline
        LAX 15:00
        6h
        Direct
        SEA 16:00
        Los Angeles - Seattle | Sun, Jan 25 | Normal Airline
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      • SEA 13:00
        17h 25m
        1 stop
        LAX Invalid Date
        Seattle - Los Angeles | Fri, Jan 23 | Normal Airline
        Search
        Search
      • SEA 13:00
        17h 25m
        1 stop
        LAX Invalid Date
        Seattle - Los Angeles | Fri, Jan 23 | Normal Airline
        Search
        Search
      • SEA 13:00
        17h 25m
        1 stop
        LAX Invalid Date
        Seattle - Los Angeles | Fri, Jan 23 | Normal Airline
        Search
        Search
      • SEA 13:00
        17h 25m
        1 stop
        LAX Invalid Date
        Seattle - Los Angeles | Fri, Jan 23 | Normal Airline
        Search
        Search
      • SEA 13:00
        17h 25m
        1 stop
        LAX Invalid Date
        Seattle - Los Angeles | Fri, Jan 23 | Normal Airline
        Search
        Search
      • SEA 13:00
        17h 25m
        1 stop
        LAX Invalid Date
        Seattle - Los Angeles | Fri, Jan 23 | Normal Airline
        Search
        Search
      • SEA 13:00
        17h 25m
        1 stop
        LAX Invalid Date
        Seattle - Los Angeles | Fri, Jan 23 | Normal Airline
        Search
        Search
      • SEA 13:00
        17h 25m
        1 stop
        LAX Invalid Date
        Seattle - Los Angeles | Fri, Jan 23 | Normal Airline
        Search
        Search
      • SEA 13:00
        17h 25m
        1 stop
        LAX Invalid Date
        Seattle - Los Angeles | Fri, Jan 23 | Normal Airline
        Search
        Search
      • SEA 13:00
        17h 25m
        1 stop
        LAX Invalid Date
        Seattle - Los Angeles | Fri, Jan 23 | Normal Airline
        Search
        Search

Displayed flight fares from Seattle to Los Angeles are based on average prices across airlines for the next 3 months, according to the latest Trip.com database.

Selected Airlines from Seattle–Tacoma International Airport to Ontario International Airport

See which airlines fly from Seattle to Los Angeles. Find the airline that best meets your travel needs by comparing prices and treat yourself to an enjoyable journey.

Delta Air Lines
From CAD 181
Hawaiian Airlines
From CAD 187
Alaska Airlines
From CAD 189

Find more flights and airlines

Seattle–Tacoma International Airport to Ontario International Airport Flights Info

Flight distance1,540.96km
Cheapest return ticket priceCAD 114

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 2 hours 40 minutes to fly from Seattle–Tacoma International Airport (sea) to Ontario International Airport(ont).
  • There are around 5 daily flights from Seattle–Tacoma International Airport (SEA) to Ontario International Airport (ONT).
  • Tickets cost around CAD 169 in March, 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 CAD 324 in January, 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.

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