Are there direct flights from Ontario to Seattle?

Yes, there are direct flights on this route. Check the calendar above — prices for direct flights are highlighted.

Cheap flights Ontario — Seattle | Prices from 185 $

Q: How long is the flight from Ontario to Seattle?

Approximate flight time — 2 h 20 min. This is an average for a direct flight. With connections, the time may be longer.

Q: What is the distance from Ontario to Seattle?

The straight-line distance — 1 557 km. This is the "as-the-crow-flies" distance; the actual route may be longer.

Q: How much do flights from Ontario to Seattle cost?

The minimum price over 6 months — from 185 $ on 16.11.2026. Prices depend on the season, day of the week and how far in advance you book.

Q: What is the time difference between Ontario and Seattle?

The time difference — +0 h. Keep this in mind when planning your flight and connections.

Q: When is the best time to buy tickets Ontario — Seattle?

Optimal — 1–3 months before departure. The cheapest days — Tuesday, Wednesday, Saturday. Check the calendar above — it shows the best dates.

Seattle

Seattle is a city of coffee, music, and rain, located on the shores of Puget Sound at the foot of the Olympic Mountains. Its famous Space Needle and the lively Pike Place Market, with fishmongers tossing salmon, are symbols of the city. Seattle is a gateway to the wilderness of the Pacific Northwest...

More about Seattle

Trip cost calculator for Seattle

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Route characteristics

Distance

1 557 km

Flight time

2 h 20 min

Time difference

+0 h

Minimum price

from 185 $ (16.11.2026)

Departure airports

1 pcs.

Arrival airports

2 pcs.

Where to buy tickets 1 pcs.

Farera

1 ticket

Airports

From — Ontario

ONT Ontario International Airport

To — Seattle

BFI Boeing Field International Airport
SEA Seattle-Tacoma International Airport

Frequently asked questions about the route Ontario — Seattle

How long is the flight from Ontario to Seattle?

Approximate flight time — 2 h 20 min. This is an average for a direct flight. With connections, the time may be longer. You will see the exact time when searching for tickets.

What is the distance from Ontario to Seattle?

The straight-line distance — 1 557 km. This is the "as-the-crow-flies" distance; the actual route may be longer.

How much do flights from Ontario to Seattle cost?

The minimum price over 6 months — from 185 $ on 16.11.2026. Prices depend on the season, day of the week and how far in advance you book. Usually cheaper 1–3 months before departure.

What is the time difference?

The difference — +0 h. Keep this in mind when planning your flight and connections.

From which airports does Ontario operate flights?

From Ontario: ONT (Ontario International Airport). Choose the most convenient airport.

To which airports in Seattle do flights arrive?

To Seattle: BFI (Boeing Field International Airport), SEA (Seattle-Tacoma International Airport). Check which airport your flight arrives at.

When is the best time to buy tickets?

Optimal — 1–3 months before departure. The cheapest days — Tuesday, Wednesday, Saturday. Check the calendar above — it shows the best dates.

How do I book tickets?

Choose a date, passengers and click "Find tickets" — a search will open comparing prices from 800+ airlines. Booking is made directly with the airline or agency.

About the route Ontario — Seattle

Flights Ontario — Seattle is a popular route. The straight-line distance is 1 557 km. Flight time 2 h 20 min. Time difference +0 h.

From Ontario (ONT) flights depart from one airport. To Seattle (SEA) — 2 arrival airports.

The minimum price for the next 6 months — from 185 $ (16.11.2026). The cheapest dates are highlighted in the calendar above.

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