- Must visit
Seattle Art Museum
Major art museum with global collections, strong Native and modern holdings, and rotating blockbuster exhibitions downtown.
Flights from Ontario, CA to Seattle, WA depart on average 111 times per day, taking around 4h 39m. Cheap flight tickets for this journey start at kr1209 if you book in advance.
There are 19 flights per day. The earliest flight runs at 00:05, the last at 23:58. The fastest flight covers the 966 miles (1556 km) distance in 2h 39m. August is the cheapest month to fly.
Distance 966 miles (1556 km) |
Average flight duration 4h 39m |
Cheapest ticket price kr1209 |
Flights per day 111 |
Direct flights 19 |
Fastest flight 2h 39m |
First flight 12:05 AM |
Last flight 11:58 PM |
Cheapest Month Aug |
Cheapest Day Sat |
High Season Apr - Jun |
Low Season Oct - Dec |
Best time to book 3 days |
Omio recommends booking the flight as it is the most popular option from Ontario, CA to Seattle, WA among Omio's users. If you are prioritising price, take the bus, with an average ticket price of kr2254 For those with little time, consider booking a flight, which has an average total journey time of 6h 39m. Average ticket prices depend on the travel mode: a bus costs an average of kr2254, while a flight costs an average of kr5047.
Distance: 966 miles (1556 km)
Most popular Flight | Bus | Train | Driving |
|---|---|---|---|
kr5047 Average price | kr2254 Average price Cheapest | kr2280 Average price (fuel + tolls) | |
6h 39m Average total duration Fastest 4h 39m Onboard + 2h 0m Additional time* | 28h 19m Average total duration 27h 49m Onboard + 30m Additional time* | 18h 2m Average total duration (door-to-door) | |
Direct Options | Direct Options | Direct Options | Direct Options |
This is compared to other travel options from Ontario, CA to Seattle, WA:
A bus is kr2793 less than a flight for this route with tickets for a flight from Ontario, CA to Seattle, WA costing on average kr5047.
Other travel options to Seattle, WA take longer:
Bus takes on average 27h 49m.
The table below shows live departures for Ontario, CA to Seattle, WA flights for today, Friday, August 28. You can also manually refresh the results below to see updated flight journeys.
| Provider | Departs | Duration | Arrives | Transfers | Tickets |
|---|---|---|---|---|---|
![]() | 8:05 PM Ontario, CA | 9h28 | 5:33 AM Seattle, WA | 0 transfersDirect | |
![]() | 10:30 PM Ontario, CA | 5h27 | 3:57 AM Seattle, WA | 0 transfersDirect | |
This is the last flight of the day. | |||||
Find all the dates and times for this journey
Compare bus, train, and flight prices over the next three weeks. See the best deals at a glance, find the lowest fares, and choose the option that fits your budget.
Discover the best of Seattle, WA — top attractions, local food, transport tips, budget advice, and currency essentials. Plan your perfect Seattle, WA trip today.
Major art museum with global collections, strong Native and modern holdings, and rotating blockbuster exhibitions downtown.
Immersive pop-culture museum with music, science fiction, gaming, and film exhibits in a Frank Gehry building.
Leading aviation museum featuring historic aircraft, spacecraft, and hands-on exhibits near Boeing Field.
Vast urban park with forests, beaches, bluffs, and trails, plus some of Seattle’s finest Puget Sound views.
Lively waterfront district with ferries, the Great Wheel, promenades, and classic Elliott Bay scenery.
Beloved hilltop park offering postcard views of downtown, Elliott Bay, and Mount Rainier, especially at sunset.
Cedar plank salmon is Pacific Northwest salmon roasted on cedar, adding smoky wood aroma. It reflects Seattle's strong salmon culture and regional cooking style.
Seattle-style teriyaki is grilled meat with sweet-savory sauce, usually over rice and salad. It became a defining everyday local meal across the city.
Geoduck is a large Pacific Northwest clam, often served raw or lightly cooked. It is prized locally for its sweet taste and connection to regional seafood.
Historic Pike Place Market spot famed for clam chowder, seafood sandwiches, and casual counter service with a lively market atmosphere.
Long-running market restaurant known for Dungeness crab cakes, seafood entrées, and views over Pike Place with a classic local feel.
Acclaimed fine dining destination focused on seasonal Pacific Northwest ingredients, refined tasting menus, and elegant service near Pike Place.
Seattle is pricier than many US cities, with higher hotel, dining, and parking costs. Transit is reasonable, but central stays and waterfront meals raise typical visitor budgets.
Tip 18-20% at restaurants, more for excellent service. Taxis usually 10-15%. Cafes often have tip jars or screens; small tips are appreciated.
Find answers to the most common questions about traveling from Ontario, CA to Seattle, WA by flight. From journey times and ticket prices to direct connections, first and last departures, and even whether the route is scenic, our FAQs cover everything you need to plan your trip. Whether you’re looking for the fastest flight, the cheapest option, or tips for making the most of your visit at Seattle, WA, this guide helps you travel smarter and with confidence.

Most Ontario, CA to Seattle, WA flights use the Los Angeles International Airport to Seattle-Tacoma International Airport airport pair. Use this guide to compare Ontario, CA and Seattle, WA airports on this route, check city-centre transport, alongside checking practicalities like airport facilities and services.
Ontario International Airport is 4 km from Ontario city centre. Public transport options include:
Ontario International Airport has practical services for this route, including Wifi, Shopping, Parking, Dining, ATM, Taxis, Accessibility, WC, Hotel, Shower, Lounge, Lost and Found Office, and Car Rental.
Food options include: Various options in terminals, including fast food and sit-down restaurants
Free Wi-Fi available throughout the airport. ATMs are located in all terminals.
Lost and found is available at the station.
Available at Ontario International Airport: Parking, Taxis, WC.
Available at Ontario International Airport: Car Rental.
Accessibility facilities are available at Ontario International Airport: Elevators, ramps.
Nearby hotels include Hotels nearby, such as Ontario Airport Hotel & Conference Center..
Seattle-Tacoma International Airport has practical services for this route, including Wifi, Shopping, Parking, Dining, ATM, Taxis, Accessibility, WC, Hotel, Shower, Lounge, Lost and Found Office, and Car Rental.
Food options include: Restaurants are available, including fast food and sit-down options like McDold's and Beecher's Handmade Cheese.
Free Wi-Fi available throughout the airport. ATMs are located throughout the terminal, including near baggage claim and ticketingas.
Lost and found is available at the station.
Available at Seattle-Tacoma International Airport: Parking, Taxis, WC.
Available at Seattle-Tacoma International Airport: Car Rental.
Accessibility facilities are available at Seattle-Tacoma International Airport: Elevators, ramps.
Nearby hotels include Hotels within walking distance, such as the Seattle Airport Marriott and Hilton Seattle Airport..
Here are some other resources that might have the information you need