Flight
Driving
Fontana to Seattle
Updated: 28 May 2026
The journey from Fontana to Seattle covers approximately 1,800 kilometers. Driving via I-5 North is the most direct route, taking about 18 to 20 hours. Alternatively, you can fly from Ontario International Airport (ONT) to Seattle-Tacoma International Airport (SEA). This is a common route for business and leisure travel between the two states.
Total Distance: Driving distance 1,800 km, straight-line air distance 1,600 km.
Fastest Way
Flight from Ontario (ONT) to Seattle (SEA) takes 2.5 hours.
Cheapest Way
Driving is usually the cheapest option for groups.
Compare Fontana to Seattle Routes
|
Direct
|
Direct
|
|
|---|---|---|
| Duration | 2 hours 30 mins | 19 hours |
| Avg Price | $150 - $400 | $250 - $500 |
| Operator | Alaska Airlines | Personal Vehicle |
| Route | ONT to SEA. | I-5 N. |
| Tip | Flights are very frequent and convenient. | The I-5 is a long, straight highway; take frequent breaks. |
Travel Tips
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TrafficThe I-5 can be busy; check traffic reports before leaving.
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WeatherSeattle is known for its rain; bring a waterproof jacket.
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BookingBook your hotel in advance, especially during peak season.
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Local KnowledgeSeattle is a very walkable city; use public transit.
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CoffeeEnjoy the local coffee culture.
Safety Tips
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DrivingStay alert for sudden traffic stops on the I-5.
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VehicleCheck your car before the long drive.
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EmergencyKeep a roadside emergency kit in your car.
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Cell ServiceExpect spotty cell service in remote areas of the I-5.
People Also Ask
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How long does it take to drive to Seattle?It typically takes 19 hours, but can be longer with traffic.
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Is there a train to Seattle?No, there is no direct train service to Seattle.
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What is the best time to leave for Seattle?Early morning is the best time to avoid traffic.
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Are there flights from Ontario to Seattle?Yes, several airlines offer direct flights.
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Is the I-5 safe?Yes, but it is a busy highway; drive defensively.
Quick Info
- From Fontana, California, United States
- To Seattle, Washington, United States
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Modes
Best Time to Travel
Summer for the best weather in Seattle.
Things to Do in Seattle
1
Space Needle
Visit this iconic landmark for panoramic views of the city.
2
Pike Place Market
Explore this famous market with its fresh produce, fish, and shops.
3
Museum of Pop Culture
Discover a unique museum dedicated to contemporary popular culture.
4
Chihuly Garden and Glass
See stunning glass art in a beautiful garden setting.
Tags
Fontana to Seattle
Seattle travel
driving to Seattle
I-5 traffic
flights to Seattle
Fontana transport
California to Washington
Seattle guide
