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Seattle to Ontario Flights

Flight only Hotel only Flight + Hotel

Flight type

Round-trip One-way
Age of children at time of trip

We will search for applicable airfare discounts. Must have 1 adult for each infant in lap

Selected fares from Seattle to Ontario

Departure Arrival Travel dates Round-trip
SEA ONT Wed, Aug 27 - Wed, Sep 3 $187
SEA ONT Wed, Sep 3 - Wed, Sep 10 $187
SEA ONT Wed, Sep 3 - Wed, Sep 10 $187
SEA ONT Wed, Sep 3 - Wed, Sep 10 $190
SEA ONT Wed, Sep 3 - Wed, Sep 10 $196
SEA ONT Thu, Aug 21 - Tue, Aug 26 $215
SEA ONT Thu, Aug 21 - Tue, Aug 26 $243

Seattle and Ontario airports and terminals

Airports in Seattle WA, US
map of airports in Seattle
  • 1

    SeaTac Airport (SEA)

    Distance from City Center: 10.9 miles

    Carriers for flights from SEA to ONT

    Carriers
    Alaska Airlines, American Airlines
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Airports in Ontario CA, US
map of airports in Ontario
  • 1

    Ontario International Airport (ONT)

    Distance from City Center: 0.9 miles

    Terminals and carriers for flights from SEA to ONT

    Terminal Carriers
    Terminal 2 Alaska Airlines, American Airlines
  • 2

    Long Beach Municipal (LGB)

    Distance from City Center: 34.9 miles

  • 3

    Bob Hope (BUR)

    Distance from City Center: 43.6 miles

  • 4

    John Wayne Airport (SNA)

    Distance from City Center: 30.6 miles

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Cheap flights from Seattle to Ontario

Sun Mon Tue Wed Thu Fri Sat
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$187
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31

Highlighted price = Cheapest round-trip flights

Prices are round trip per person (conditions apply)

Featured Ontario Airport Hotels

Hotel only $72

Radisson Hotel Ontario Airport

3 stars
3.9 / 5 60 reviews

2200 EAST HOLT BOULEVARD Map

Save 30% on your stay

The Radisson Ontario Airport, just 1.6 miles from the Ontario International Airport, offers complimentary airport shuttle service to get your business trip or vacation off to the perfect start.... More

Hotel only $83

Holiday Inn ONTARIO AIRPORT

3 stars
4.3 / 5 98 reviews

2155 E. CONVENTION CENTER WAY Map

...Ontario International Airport (0.8 mi/2 km) Ontario Convention Center (0.2 mi/0.4 km).... Executive suites available Centrally located Ontario hotel close to the airport and shopping... More

Hotel only $79

Fairfield Inn by Marriott Ontario

3 stars
3.9 / 5 74 reviews

3201 East Centrelake Drive Map

Cozy, economical hotel close to Ontario airport and major attractions Fairfield Inn by Marriott Ontario offers a comfortable, tranquil guest experience, just minutes away from Ontario... More

Hotel only $99

Residence Inn by Marriott Ontario Airport

3 stars
4.0 / 5 33 reviews

2025 Convention Center Way Map

...The Residence Inn by Marriott Ontario Airport hotel offers 200 apartment-style suites with fully equipped kitchens.... The Residence Inn Ontario Airport hotel is less than a mile from the... More

Hotel only $100

Ayres Hotel & Suites Ontario Airport

3 stars
4.1 / 5 29 reviews

1945 Holt Blvd. Map

Sunkissed Summer Sale - 10% Off

...Located 1/2 mile NW of The Ontario International Airport.... More

Red Lion Hotel Ontario Airport

3 stars
4.2 / 5 79 reviews

204 North Vineyard Map

Summer Sale - Save 25% on your stay

The Red Lion Hotel Ontario Airport is 1.5 miles from the Ontario Airport, with free shuttle service provided from 5am to 11pm.... More

August

Cheapest weekend flights in August from Seattle to Ontario

Travel dates Departure Arrival Stops: Round-trip
Leave Thu, Aug 21 Seattle (SEA) Ontario (ONT) United Airlines $219
Earn $2.19
Return Mon, Aug 25 Ontario (ONT) Seattle (SEA) United Airlines

Lowest roundtrip airfare in August from Seattle to Ontario

Travel dates Departure Arrival Stops: Round-trip
Leave Wed, Aug 27 Seattle (SEA) Ontario (ONT) United Airlines $187
Earn $1.87
Return Wed, Sep 3 Ontario (ONT) Seattle (SEA) United Airlines

Best one-week trip in August from Seattle to Ontario

Travel dates Departure Arrival Stops: Round-trip
Leave Wed, Aug 27 Seattle (SEA) Ontario (ONT) United Airlines $187
Earn $1.87
Return Wed, Sep 3 Ontario (ONT) Seattle (SEA) United Airlines
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September

Cheapest weekend flights in September from Seattle to Ontario

Travel dates Departure Arrival Stops: Round-trip
Leave Fri, Sep 5 Seattle (SEA) Ontario (ONT) Alaska Airlines $209
Earn $2.09
Return Mon, Sep 8 Ontario (ONT) Seattle (SEA) Alaska Airlines

Lowest roundtrip airfare in September from Seattle to Ontario

Travel dates Departure Arrival Stops: Round-trip
Leave Wed, Sep 3 Seattle (SEA) Ontario (ONT) United Airlines $187
Earn $1.87
Return Wed, Sep 10 Ontario (ONT) Seattle (SEA) United Airlines

Best one-week trip in September from Seattle to Ontario

Travel dates Departure Arrival Stops: Round-trip
Leave Wed, Sep 3 Seattle (SEA) Ontario (ONT) United Airlines $187
Earn $1.87
Return Wed, Sep 10 Ontario (ONT) Seattle (SEA) United Airlines
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October

Cheapest weekend flights in October from Seattle to Ontario

Travel dates Departure Arrival Stops: Round-trip
Leave Thu, Oct 9 Seattle (SEA) Ontario (ONT) Alaska Airlines $250
Earn $2.50
Return Sun, Oct 12 Ontario (ONT) Seattle (SEA) Alaska Airlines

Lowest roundtrip airfare in October from Seattle to Ontario

Travel dates Departure Arrival Stops: Round-trip
Leave Fri, Oct 17 Seattle (SEA) Ontario (ONT) Alaska Airlines $202
Earn $2.02
Return Thu, Oct 23 Ontario (ONT) Seattle (SEA) Alaska Airlines
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Flights to Ontario

Seattle Airport

While Seattle is home to several airports, the only one that handles commercial flights is the Seattle-Tacoma International Airport. Also known as Sea-Tac, this airport is responsible for all incoming flights, along with flights from Seattle. Alaska Airlines, Air Canada, Delta Air Lines, Southwest Airlines, and US Airways are a few airlines that operate out of this airport. Located in SeaTac, Washington, the airport sits along the intersection of three state routes: 99, 518, and 509. Though the airport has three terminals, only the Concourse Terminal and North Satellite Terminal handle domestic flights. The South Satellite Terminal specializes in international flights. It's just a short drive from the airport to downtown.

Transportation

When you need to reach your hotel quickly, head for the public transportation system, which consists of Sound Transit and Metro Transit. The buses and light rails only cost a few dollars, and you can visit the sales counter at any station to purchase tickets for your trip. The light rail system drops passengers directly at some of the top hotels in the downtown area. Seattle uses a grid system for its roads, which makes finding your hotel easy if you drive. You can use the Orbitz.com sign to look for rental cars from the airport.

Weather

If you visit during the spring, winter, or fall, you need a warm coat and an umbrella. Though the city does not get snow, it does get a high amount of rain during these seasons, and temperatures that can drop below 40 degrees Fahrenheit. The summer is much warmer, with temperatures in the high 70s and less rainfall.

Popular Attractions

Seattle is home to dozens of cultural activities and attractions, including the Seattle International Film Festival, the Henry Art Galley, the Woodland Park Zoo, and the Seattle Underground Tour, which takes you through older parts of the city. When you look for flights from Seattle on Orbitz.com, take a few minutes to look for other low-cost attractions in the city.

Flying Into Ontario International Airport

Flights into Ontario International Airport are for passengers destined for the Inland Empire region of California. Located 35 miles from downtown Los Angeles on East Airport Drive, the airport is actually a part of the LAX system. A medium-sized hub, the airport has the capabilities to service a full slate of commercial flights. Airlines found within the terminals include international carriers Aero Mexico as well as popular domestic carriers like United, Southwest, Delta and American Airlines. Seven airlines service LA/Ontario International, and they operate more than 114 flights each day.

Finding Transportation From the Airport

There are several ways to get to the many cities throughout the Inland Empire region. Hotels in and around Ontario offer hotel shuttles, free of charge, that run from the terminal to the hotel lobby. You can take a taxi to downtown Ontario for a little more than $10 or go all the way to downtown Los Angeles for around $100. Private shuttles are also available and will cost about the same fees. Private shuttles, however, must be reserved. Rental cars are also available. With Orbitz.com, you can buy tickets and reserve a rental car at the same time.

What to Expect From the Weather

The weather is always sunny. The temperatures rarely dip below 70 degrees Fahrenheit and are usually below 90 degrees Fahrenheit. Temperatures in July and August may exceed this range, but never stick around for long. Don't expect the threat of rain to ruin your plans or dictate the calendar when booking tickets on Orbitz.com.

Ontario's Offerings for Visitors

When in Ontario, check out the outdoors in Cucamonga-Guasti Regional Park. You can also take in a concert at the Ontario Convention center or have a cultural experience at the Museum of History and Art, Ontario. Don't just race through the city on your way to Los Angeles or the surrounding cities. Booking bargain flights to Ontario with Orbitz.com will save you some major cash, so spend it exploring what the city has to offer.

Interesting facts about flights from Seattle to Ontario

    • 8 direct flights are operating from Seattle to Ontario today.
    • Today's average time for a direct flight is 2h 31m.
    • American Airlines flight 7025 (2:20 AM GMT, Boeing 737 Passenger) is today's earliest available flight from Seattle to Ontario.
    • American Airlines flight 7021 (3:55 PM GMT, Boeing 737 Passenger) is today's latest available flight from Seattle to Ontario.
    • Today's shortest direct flight from Seattle to Ontario (American Airlines flight 7025, Boeing 737 Passenger) takes 2h 27m.
    • Today's longest direct flight from Seattle to Ontario (American Airlines flight 7005, Boeing 737 Passenger) takes 2h 34m.
    • Flights from SeaTac Airport (SEA) to Bob Hope (BUR), John Wayne Airport (SNA), Long Beach Municipal (LGB), Ontario International Airport (ONT) are available for this route.

Aircraft options between Seattle and Ontario

Equipment Carrier
Boeing 737-700 Passenger Alaska Airlines
Boeing 737-400 Passenger Alaska Airlines
Boeing 737 Passenger American Airlines
Boeing 737-900 Passenger Alaska Airlines
Boeing 737-900 (Winglets) Passenger Alaska Airlines
Boeing 737-800 (Winglets) Passenger Alaska Airlines