Flying from Seattle to Ontario International Airport (ONT): What you need to know
Your trip gets off the ground at Seattle's main airport, Seattle-Tacoma International Airport (SEA). Check out your options for catching a flight from Seattle to Ontario International Airport (ONT) departing from this base.
Around 2 hours 45 minutes is the usual time it takes for a direct Seattle to Ontario International Airport flight.
Ontario International Airport is located in Ontario. The city's timezone is UTC-8, which is the same as Seattle.
With 48 direct weekly flights between the two airports, Seattle-Tacoma International Airport (SEA) to Ontario International Airport (ONT) is the busiest route. Alaska Airlines operates the earliest flight at 7:55am. If you'd like to get more out of your day before flying, the last flight from SEA to ONT is with Alaska Airlines at 9:30pm.
To ensure you catch your flight from Seattle to ONT, leave plenty of time for things like check-in and baggage drop. Turning up two hours before international departures and an hour before domestic flights is the general travel rule.
Hopping on a plane during a peak time like July? Popular periods (like Thanksgiving, Christmas and spring break) can easily add another hour at security. Be extra cautious and arrive up to four hours ahead of an international flight and two hours before a domestic departure.
Airports in Seattle
Seattle-Tacoma International Airport (SEA)
Get to your destination in one go from Seattle-Tacoma International Airport (SEA). Nonstop flights from Seattle to Ontario International Airport (ONT) operate from here.
You'll have your choice of carriers that offer direct flights from Seattle to Ontario International Airport departing from SEA. Head off on your trip with any of these:
The top choice among passengers flying between SEA and ONT is Delta.
Among carriers operating on this route, Delta has the best track record for timely arrivals.
Located around 23 kilometres from central Seattle, SEA can be reached in about 25 minutes by car, depending on traffic. The journey by public transport is roughly 35 minutes.
Want an easy start to your travels? Stay near Seattle-Tacoma International Airport. Whether you have an early flight from Seattle to Ontario International Airport or prefer not to rush, these hotels are the answer:
Seattle-Tacoma International Airport gets high marks for its on-time performance. 80% of flights that depart SEA land on time.
Seattle Paine Field International Airport (PAE)
You can get to PAE from the centre of Seattle in about 40 minutes by car (depending on traffic). The journey by public transport will take roughly 1 hour 30 minutes to travel the 40 kilometres or so.
Catching the earliest flight? Think about staying at one of these accommodation options near Seattle Paine Field International Airport the day before your Seattle to ONT flight:
Flights from Seattle Paine Field International Airport have a proven record for punctuality, with 80% of them landing as expected.
About Ontario International Airport (ONT)
The last thing you want is a lengthy journey to your hotel if you're getting in late on a flight from Seattle to Ontario International Airport. Check in to one of these accommodation options near ONT instead:
To lock in the lowest price, reserve your vehicle around three weeks ahead of your Seattle to Ontario International Airport flight.
You'll find ONT at 2900 E. Airport Drive.
Getting from Ontario International Airport (ONT) to central Ontario
Central Ontario is around 10 kilometres from Ontario International Airport and takes about 15 minutes to reach by car. See what your options are for heading into the city, whether that's with a car hire, taxi or ride-share.
Travelling on public transport takes roughly 45 minutes.
How to find the cheapest flights from Seattle to Ontario International Airport (ONT)
The cheapest price we've found for a one-way ticket from Seattle to Ontario International Airport is R 1,045. For a return flight on this route, the best price is R 2,089. Depending on how early you book and the availability, these fares may change.
Don't wait until the last moment. You're more likely to find cheap flights from Seattle to ONT if you book ahead. Airlines often have some excellent early bird discounts.
Affordable Seattle to Ontario International Airport tickets are easier to find if you're not locked into specific dates. Use the 'Whole month' tool to compare fares throughout the month and then fly out on the cheapest day.
You don't need to search every day to find out if fares have dropped when you set up a Price Alert. We'll let you know when there's a better deal on plane tickets from Seattle to ONT.
Tailor your flights using filters. Pick your ideal arrival and departure times, total journey duration and airlines. You can also sort the results by 'Best,' 'Cheapest' or 'Fastest' flights from Seattle to Ontario International Airport.
The best time to fly from Seattle to Ontario International Airport (ONT)
Think about the kind of holiday you want when deciding your trip dates. December is the quietest month to visit Ontario. July is when most people book flights from Seattle to Ontario International Airport (ONT), which may be perfect if you're chasing more action.
When booking your Seattle to ONT plane ticket, consider the kind of weather forecast you're hoping for. August is the warmest month in Ontario, with temperatures ranging from 16ºC (61ºF) to 36ºC (97ºF).
Search for cheap tickets from Seattle to Ontario International Airport in February if you like travelling in cooler conditions. Temperatures are at their lowest then, ranging between 4ºC (39ºF) and 24ºC (75ºF).
More about Ontario
Start your Ontario trip off on the right foot by choosing the perfect place to stay. Once you've booked your flight from Seattle to Ontario International Airport, explore our selection of accommodation options including:
Make the most of your travels to Ontario by stopping by major attractions like Graber Olive House.
Explore more of the United States
You've done Ontario, now it's time to discover more of the United States. Travel around 153 kilometres south to San Diego to tick off its must-visit sights. From San Diego Zoo to San Diego Balboa Park and USS Midway Museum, you'll have a full itinerary ahead.
Around 193 kilometres northwest of Ontario, Bakersfield is another essential stop in the United States. Get a taste of what this destination has to offer at Kern County Museum, Rabobank Arena, Theatre & Convention Centre and Bakersfield Museum of Art.
