
Popular airlines from Los Angeles - Ontario Intl. Airport (ONT) to Seattle-Tacoma International Airport (SEA)
- Alaska Airlines
Alaska Airlines
- Delta
Delta
- Southwest Airlines
Southwest Airlines
- Frontier Airlines
Frontier Airlines
- United
United
- American Airlines
American Airlines
- Hawaiian Airlines
Hawaiian Airlines
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Cheap Flights from Ontario (ONT) to Seattle (SEA)
Prices were available within the past 7 days for one-way flights and round trip tickets for the period specified. Prices and availability are subject to change. Additional terms apply.

Thu, 18 Dec - Wed, 31 Dec
ONT
Ontario
SEA
Seattle
NZ$211 Return, found 2 days ago
NZ$211
Return
found 2 days ago

Wed, 17 Dec - Fri, 2 Jan
ONT
Ontario
SEA
Seattle
NZ$212 Return, found 2 days ago
NZ$212
Return
found 2 days ago

Wed, 24 Dec - Tue, 6 Jan
ONT
Ontario
SEA
Seattle
NZ$244 Return, found 2 days ago
NZ$244
Return
found 2 days ago

Fri, 19 Dec - Tue, 6 Jan
ONT
Ontario
SEA
Seattle
NZ$246 Return, found 2 days ago
NZ$246
Return
found 2 days ago

Sun, 21 Dec - Sat, 3 Jan
ONT
Ontario
SEA
Seattle
NZ$279 Return, found 2 days ago
NZ$279
Return
found 2 days ago

Fri, 19 Dec - Thu, 1 Jan
ONT
Ontario
SEA
Seattle
NZ$282 Return, found 2 days ago
NZ$282
Return
found 2 days ago

Tue, 23 Dec - Wed, 31 Dec
ONT
Ontario
SEA
Seattle
NZ$298 Return, found 2 days ago
NZ$298
Return
found 2 days ago

Sat, 20 Dec - Wed, 31 Dec
ONT
Ontario
SEA
Seattle
NZ$342 Return, found 2 days ago
NZ$342
Return
found 2 days ago

Sun, 30 Nov - Sat, 6 Dec
ONT
Ontario
SEA
Seattle
NZ$842 Return, found 3 days ago
NZ$842
Return
found 3 days ago

Sat, 29 Nov - Sat, 6 Dec
ONT
Ontario
SEA
Seattle
NZ$1,101 Return, found 3 days ago
NZ$1,101
Return
found 3 days ago
Alternative airports near Seattle
Prices were available within the past 7 days. Prices and availability are subject to change.
Origin airport | Los Angeles - Ontario Intl. |
|---|---|
Destination airport | Seattle - Tacoma Intl. |
Return price | NZ$210 |
Distance | 1530 km |
Average flight time | 2 hours 54 mins |
Perfect flights from Ontario to Seattle
Embark on an unforgettable journey without breaking the bank with Expedia's incredible deals on cheap flights from Ontario to Seattle. Whether you're aching for a romantic escape with your partner, craving an adventurous solo expedition, or yearning to immerse yourself in the local history and culture, we've got you covered.
Picture yourself strolling through the streets of , surrounded by breathtaking architecture and absorbing the vibrant atmosphere of this captivating city. Indulge in the mouth-watering local specialties, from tantalizing street food to exquisite fine dining. With Expedia, you can experience all of this and more, without sacrificing your budget.
Our flexible Los Angeles - Ontario Intl. to Seattle - Tacoma Intl. ticket options cater to your travel preferences, with incredible one-way fares from NZ$159 and roundtrip prices from NZ$211. Whether you're planning a short city break or a longer adventure, our dynamic pricing ensures that you find the best deals for your journey.
But the magic doesn't stop there. Expedia offers a range of partner services to enhance your trip. Rent a car at Seattle - Tacoma Intl. and explore and its surrounding areas at your own pace. Discover hidden gems off the beaten path, and create unforgettable memories. We also provide a handpicked selection of accommodations, from charming bed and breakfasts to luxury hotels, ensuring that you have a comfortable and memorable stay.
Planning your next great adventure is a breeze with Expedia. Our user-friendly platform, unbeatable prices, and round-the-clock customer support are designed to make your travel experience seamless and stress-free. So, why wait? Book your to travel arrangements today and embark on the journey of a lifetime in Seattle.
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Ontario Airports
Orange County
NZ$174.60
Los Angeles
NZ$245.60
Burbank
NZ$294.00
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*Available to Expedia members.