Beginning of main content
Round Trip Icon
Trip Type
Flight 1
Flight 2
Flight 3
Flight 4
Flight 5
Due to coronavirus (COVID-19) travel advisories, some destinations may be unavailable for certain dates. Find out more.

Earn rewards on top of your airline miles with Orbitz Rewards

Many airlines offer flexible change policies

Sign up to receive text alerts about your trip

Cheap Flights from SEA to ONT starting at $78 One Way, $131 Round Trip

Prices starting at $131 for return flights and $78 for one-way flights to Los Angeles - Ontario Intl. were the cheapest prices found within the past 7 days, for the period specified. Prices and availability are subject to change. Additional terms apply.

Hotel Ideas near Los Angeles - Ontario Intl.

Airport Hotels near Los Angeles - Ontario Intl.

Ontario Airport Hotel & Conference Center $102
Reviewed on Jun 2, 2021
See details
 
Ontario Airport Hotel & Conference Center

Ontario Airport Hotel & Conference Center

700 N Haven Ave, Ontario, CA
Ontario Airport Hotel & Conference Center
     
    3.9 of 5
    3.5 out of 5.0 Stars

    The hotel was definitely just 'ok'. It's definitely an older hotel, not much modernization. The girl checking us in was professionl & friendly. There wasn't much interaction with staff other than the friendly 'hello' and 'goodbye' as we came & went from the hotel. Our room was very spacious, but ...

    DoubleTree by Hilton Ontario Airport $127
    Reviewed on Jun 8, 2021
    See details
     
    DoubleTree by Hilton Ontario Airport

    DoubleTree by Hilton Ontario Airport

    222 N Vineyard Ave, Ontario, CA
    DoubleTree by Hilton Ontario Airport
       
      3.9 of 5
      4.0 out of 5.0 Stars

      I liked that there was a lounge and restaurants.

      Holiday Inn Ontario Airport, an IHG Hotel $110
      Reviewed on Apr 20, 2021
      See details
       
      Holiday Inn Ontario Airport, an IHG Hotel

      Holiday Inn Ontario Airport, an IHG Hotel

      2155 E. Convention Center Way, Ontario, CA
      Holiday Inn Ontario Airport, an IHG Hotel
         
        3.8 of 5
        3.0 out of 5.0 Stars

        Everything was perfect the person at the front desk was extremely good

        SureStay Hotel by Best Western Ontario Airport $99
        Reviewed on Feb 14, 2021
        See details
         
        SureStay Hotel by Best Western Ontario Airport

        SureStay Hotel by Best Western Ontario Airport

        3201 East Centrelake Drive, Ontario, CA
        SureStay Hotel by Best Western Ontario Airport
           
          3.8 of 5
          2.5 out of 5.0 Stars

          Very clean nice and peaceful. No complaints recomend

          Hotels In Ontario

          Loews Hollywood Hotel $224
          Reviewed on Jun 1, 2021
          See details
           
          Loews Hollywood Hotel

          Loews Hollywood Hotel

          1755 North Highland Avenue, Los Angeles, CA
          Loews Hollywood Hotel
             
            4.4 of 5
            4.0 out of 5.0 Stars

            They gave us a free upgrade from a regular room to a suite on the 17th floor. Made our stay that much more special.

            Sheraton Gateway Los Angeles Hotel $119
            Reviewed on Jun 1, 2021
            See details
             
            Sheraton Gateway Los Angeles Hotel

            Sheraton Gateway Los Angeles Hotel

            6101 W Century Blvd, Los Angeles, CA
            Sheraton Gateway Los Angeles Hotel
               
              3.9 of 5
              4.0 out of 5.0 Stars

              Got a room exactly as described.

              InterContinental Los Angeles Downtown, an IHG Hotel $192
              Reviewed on Jun 7, 2021
              See details
               
              InterContinental Los Angeles Downtown, an IHG Hotel

              InterContinental Los Angeles Downtown, an IHG Hotel

              900 Wilshire Blvd, Los Angeles, CA
              InterContinental Los Angeles Downtown, an IHG Hotel
                 
                4.2 of 5
                4.5 out of 5.0 Stars

                Beautiful property in the heart of downtown LA with the Staple center within view. The room, hotel and hotel amenities were immaculent and the staff were friendly. Staff and hotel security guided us between the elevators as the lobby was on the 70th floor and our room was on the 54th floor but you ...

                Hilton Los Angeles Airport $125
                Reviewed on Jun 12, 2021
                See details
                 
                Hilton Los Angeles Airport

                Hilton Los Angeles Airport

                5711 W Century Blvd, Los Angeles, CA
                Hilton Los Angeles Airport
                   
                  3.9 of 5
                  4.0 out of 5.0 Stars

                  Liked it enough to book several more visits

                  Ontario Hotels With Airport Transportation

                  Sheraton Gateway Los Angeles Hotel $119
                  Reviewed on Jun 1, 2021
                  See details
                   
                  Sheraton Gateway Los Angeles Hotel

                  Sheraton Gateway Los Angeles Hotel

                  6101 W Century Blvd, Los Angeles, CA
                  Sheraton Gateway Los Angeles Hotel
                     
                    3.9 of 5
                    4.0 out of 5.0 Stars

                    Got a room exactly as described.

                    Hilton Los Angeles Airport $125
                    Reviewed on Jun 12, 2021
                    See details
                     
                    Hilton Los Angeles Airport

                    Hilton Los Angeles Airport

                    5711 W Century Blvd, Los Angeles, CA
                    Hilton Los Angeles Airport
                       
                      3.9 of 5
                      4.0 out of 5.0 Stars

                      Liked it enough to book several more visits

                      Sonesta Los Angeles Airport LAX $121
                      Reviewed on Jun 11, 2021
                      See details
                       
                      Sonesta Los Angeles Airport LAX

                      Sonesta Los Angeles Airport LAX

                      5985 W Century Blvd, Los Angeles, CA
                      Sonesta Los Angeles Airport LAX
                         
                        4.1 of 5
                        4.0 out of 5.0 Stars

                        Location, quality

                        Four Points by Sheraton Los Angeles International Airport Get Rates
                        Reviewed on Dec 4, 2020
                        See details
                         
                        Four Points by Sheraton Los Angeles International Airport

                        Four Points by Sheraton Los Angeles International Airport

                        9750 Airport Blvd, Los Angeles, CA
                        Four Points by Sheraton Los Angeles International Airport
                           
                          3.5 of 5
                          3.5 out of 5.0 Stars

                          A quick overnight stay with no complaints other than there was no food available for carry out when we checked in in the evening or checked out in the early morning.

                          Low Priced Ontario Hotels

                          Motel 6 Los Angeles, CA - Los Angeles - LAX $90
                          Reviewed on May 20, 2021
                          See details
                           
                          Motel 6 Los Angeles, CA - Los Angeles - LAX

                          Motel 6 Los Angeles, CA - Los Angeles - LAX

                          5101 W Century Blvd, Inglewood, CA
                          Motel 6 Los Angeles, CA - Los Angeles - LAX
                             
                            3.8 of 5
                            2.0 out of 5.0 Stars

                            Very clean pool, rooms are spacious, front desk employees were pleasant, security were nice as well. Trenya was polite with a nice smile.

                            Los Angeles Adventurer All Suite Hotel at LAX $249
                            Reviewed on Nov 15, 2019
                            See details
                             
                            Los Angeles Adventurer All Suite Hotel at LAX

                            Los Angeles Adventurer All Suite Hotel at LAX

                            4200 W Century Blvd., Inglewood, CA
                            Los Angeles Adventurer All Suite Hotel at LAX
                               
                              1.8 of 5
                              2.5 out of 5.0 Stars

                              Nice size rooms for the price you pay. The place has a cool vibe to it.

                              Good Nite Inn - Calabasas $93
                              Reviewed on Jun 8, 2021
                              See details
                               
                              Good Nite Inn - Calabasas

                              Good Nite Inn - Calabasas

                              26557 Agoura Rd, Agoura Hills, CA
                              Good Nite Inn - Calabasas
                                 
                                4.0 of 5
                                2.0 out of 5.0 Stars

                                Clean and simple for the price.

                                Motel 6 Thousand Oaks, CA $80
                                Reviewed on Mar 25, 2021
                                See details
                                 
                                Motel 6 Thousand Oaks, CA

                                Motel 6 Thousand Oaks, CA

                                1516 Newbury Rd, Thousand Oaks, CA
                                Motel 6 Thousand Oaks, CA
                                   
                                  3.6 of 5
                                  2.0 out of 5.0 Stars

                                  Room was clean, but shady people outside all hours of the night making noise. Saw one guy checking car doors.

                                  Family Friendly Hotels in Ontario

                                  The Garland $183
                                  Reviewed on May 18, 2021
                                  See details
                                   
                                  The Garland

                                  The Garland

                                  4222 Vineland Ave, North Hollywood, CA
                                  The Garland
                                     
                                    4.4 of 5
                                    4.0 out of 5.0 Stars

                                    Very nice “retro chic” style with lots of outdoor seating options including fireplaces. Great heated pool too. Will definitely be back!

                                    Residence Inn by Marriott Los Angeles LAX/Century Boulevard $152
                                    Reviewed on May 9, 2021
                                    See details
                                     
                                    Residence Inn by Marriott Los Angeles LAX/Century Boulevard

                                    Residence Inn by Marriott Los Angeles LAX/Century Boulevard

                                    5933 W Century Blvd, Los Angeles, CA
                                    Residence Inn by Marriott Los Angeles LAX/Century Boulevard
                                       
                                      4.6 of 5
                                      3.0 out of 5.0 Stars

                                      Very helpful. Last minute stay due to cancellation of our Airbnb. They waived our parking fees and was empathetic to our situation.

                                      Azure Hotel & Suites, Trademark Collection by Wyndham $94
                                      Reviewed on Jun 2, 2021
                                      See details
                                       
                                      Azure Hotel & Suites, Trademark Collection by Wyndham

                                      Azure Hotel & Suites, Trademark Collection by Wyndham

                                      1945 E. Holt Blvd, Ontario, CA
                                      Azure Hotel & Suites, Trademark Collection by Wyndham
                                         
                                        4.2 of 5
                                        3.0 out of 5.0 Stars

                                        Clean, food available, and close to the airport

                                        SpringHill Suites Los Angeles Burbank/Downtown $151
                                        Reviewed on Mar 8, 2021
                                        See details
                                         
                                        SpringHill Suites Los Angeles Burbank/Downtown

                                        SpringHill Suites Los Angeles Burbank/Downtown

                                        549 S San Fernando Blvd, Burbank, CA
                                        SpringHill Suites Los Angeles Burbank/Downtown
                                           
                                          4.6 of 5
                                          3.0 out of 5.0 Stars

                                          Clean and modern, location was good , could walk to restaurants

                                          Map To Nearby Hotels

                                          Map

                                          SEA to ONT Route Info

                                          Origin AirportSeattle
                                          Destination AirportLos Angeles
                                          Number Of Airlines Serving5
                                          Distance956 mi
                                          Shortest Flight Departure Time11:26AM PDT
                                          Shortest Flight Departure DateJun 24

                                          Flights from SEA to Ontario, CA (ONT-Los Angeles - Ontario Intl.) - Frequently Asked Questions

                                          Am I able to catch a flight from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Ontario, CA (ONT-Los Angeles - Ontario Intl.) now?

                                          Head to the Covid-19 Travel Advisor for the most up-to-date information on quarantine and travel restrictions when catching a flight from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Ontario, CA (ONT-Los Angeles - Ontario Intl.).

                                          Are there non-stop flights from Sea-Tac Airport to Ontario, CA (ONT-Los Angeles - Ontario Intl.)?

                                          You'll be happy to hear that you can fly straight from Sea-Tac Airport to Ontario Airport. Nonstop flights are operated by several airlines, including Alaska Airlines and Delta.

                                          What is the shortest flight from Sea-Tac Airport to Ontario, CA (ONT-Los Angeles - Ontario Intl.)?

                                          Keep that movie marathon for some other time, because the trip from Seattle to Los Angeles will be over in no time. It can take you as little as 2 hours and 30 minutes to jet from Seattle, WA (SEA-Seattle - Tacoma Intl.) to ONT.

                                          How many hours flight from Sea-Tac Airport to Ontario, CA (ONT-Los Angeles - Ontario Intl.)?

                                          Don't get too comfy — the general flight time from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Los Angeles - Ontario Intl. Airport (ONT) is a mere 2 hours and 36 minutes.

                                          If I am not able to travel due to COVID-19, can I cancel my flight to Ontario, CA (ONT-Los Angeles - Ontario Intl.)?

                                          We get that traveling right now has its challenges, so it's good to know that many reservations booked through us are able to be cancelled or changed. If your travel plans to Ontario, CA (ONT-Los Angeles - Ontario Intl.) have been affected by COVID-19, a lot of airlines are making things easier by offering credits to use at a later date. Just sign in to your account and you'll quickly see what options are available. Our Customer Service Portal is the place to go for more information.

                                          Are there flights to Ontario, CA (ONT-Los Angeles - Ontario Intl.) with flexible change policies?

                                          In most cases you'll have the option to reschedule your flight to Ontario, CA (ONT-Los Angeles - Ontario Intl.) without a change fee. All you have to do then is pay the difference between the old flight and the new one. Look for the "no change fees" filter and book with confidence.

                                          What airlines have the most flights from Sea-Tac Airport to ONT?

                                          Friendly service, punctuality and superior in-flight entertainment are just a few things that make for a comfortable journey with an airline. If you need to get from SEA to ONT, why not fly with one of the best? Delta (DL) operates 108 flights on this route each month. If you want to broaden your options, check out the cost of tickets from Alaska Airlines (AS), which operates 75 flights from Seattle to Los Angeles each month.

                                          Positive Reviews

                                          Sep 16, 2019

                                          The only complaint I would have is that the seats are too narrow. The man next to me kept bumping my elbow (no elbow room) and the flight attendants bumped into me on the other side (I’m a female who weighs 150lbs).

                                          Feb 9, 2019

                                          Love Alaska Airlines they are always helpful and accommodating!

                                          Sep 30, 2018

                                          No APU upon reaching gate at ONT, no external A/C duct, cabine full of PAX, but no ventilation.

                                          Jul 30, 2018

                                          A good experience overall

                                          Jun 20, 2018

                                          The only issue was that there was no place to sit and wait for an hour and a half. The boarding area needs to have more seats. Luckily my Dad brought a wheelchair so he had a place to sit. But there were about 50 people who were sitting on the floor or lining the hallway.

                                          Jun 10, 2018

                                          I love Alaska airlines. Preferred airline

                                          Negative Reviews

                                          Mar 2, 2020

                                          One flight was 4 hours delayed... my connection was canceled.

                                          Aug 2, 2019

                                          We were checked in and because we didn’t bring our luggage to be checked by 40 minutes we were turned away. They wouldn’t let us board so I had to pay over $600 for another flight.

                                          Feb 10, 2019

                                          I wholeheartedly do not approve of the super sober fare where the ticket agent chooses your seat at the last minute. A ridiculous new practice that makes no sense whatsoever. It would be great if we were purchasing this Greyhound Bus equivalent of a ticket that it was made exceptionally clear that you are buying such a cut rate ticket.

                                          SEA Address & GPS

                                          Address:
                                          Seattle WA, 98158
                                          United States
                                          IATA Code:
                                          SEA
                                          Longitude:
                                          -122.301732
                                          Latitude:
                                          47.443839
                                          Time Zone:
                                          America/Los_Angeles

                                          ONT Address & GPS

                                          Address:
                                          2900 E. Airport Drive
                                          Ontario CA, 91761
                                          United States
                                          IATA Code:
                                          ONT
                                          Longitude:
                                          -117.601193
                                          Latitude:
                                          34.056001
                                          Time Zone:
                                          America/Los_Angeles

                                          Fare, taxes & fees: Fares include all taxes and fees, except baggage fees. Rates shown reflect fares found by other Orbitz users over the past 7 days. Due to rapidly changing airline prices & seat availability, these fares may no longer be available.

                                          Refunds/changes/cancellations: Itinerary changes, if permitted for the fare, will have a $30 service fee charged by Orbitz. Additional airline charges may apply.

                                          Other conditions: Schedules, fares and rules are subject to change without notice. Seats are limited and may not be available on all flights/dates or in all markets. Lower fares may be available. Fares will not be honored retroactively or in exchange for any wholly/partially unused ticket. Tickets are non-transferable and non-refundable. Fare rules are provided for the selected itinerary before booking.