Find Deals on Flights from Seattle/Tacoma Intl to Ontario (SEA - ONT)

Depart
Return
1 adult
Adults
18-64
Seniors
65+
Youths
12-17
Children
2-11
Seat Infants
under 2
Lap Infants
under 2
The price shown for each flight will be the average for all passengers including any infants.
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Book cheap flights from Seattle/Tacoma Intl to Ontario

(Round-trip)
Depart: Thu Sep 1 2016 Return: Thu Sep 8 2016 Trip spans 8 days
Depart: Mon Aug 15 2016 Return: Tue Aug 23 2016 Trip spans 9 days
Depart: Fri Nov 4 2016 Return: Tue Nov 8 2016 Trip spans 5 days
Depart: Sat Dec 3 2016 Return: Sat Dec 10 2016 Trip spans 8 days
Depart: Tue Jul 26 2016 Return: Fri Sep 16 2016 Trip spans 53 days
Depart: Wed Oct 26 2016 Return: Sat Oct 29 2016 Trip spans 4 days
Depart: Wed Aug 17 2016 Return: Wed Aug 24 2016 Trip spans 8 days
Depart: Mon Aug 22 2016 Return: Tue Aug 30 2016 Trip spans 9 days
Depart: Sat Aug 20 2016 Return: Wed Aug 24 2016 Trip spans 5 days
Depart: Sun Sep 25 2016 Return: Wed Sep 28 2016 Trip spans 4 days
Depart: Wed Aug 24 2016 Return: Sat Aug 27 2016 Trip spans 4 days
Depart: Wed Jul 27 2016 Return: Sat Aug 27 2016 Trip spans 32 days
Depart: Sat Aug 27 2016 Return: Tue Aug 30 2016 Trip spans 4 days
Depart: Tue Aug 9 2016 Return: Mon Aug 15 2016 Trip spans 7 days
Depart: Thu Aug 4 2016 Return: Tue Aug 16 2016 Trip spans 13 days
Depart: Wed Aug 31 2016 Return: Tue Sep 6 2016 Trip spans 7 days
Depart: Thu Jul 28 2016 Return: Sat Jul 30 2016 Trip spans 3 days
Depart: Sat Sep 3 2016 Return: Tue Sep 6 2016 Trip spans 4 days
Depart: Tue Aug 2 2016 Return: Wed Aug 24 2016 Trip spans 23 days
Depart: Fri Aug 5 2016 Return: Tue Aug 16 2016 Trip spans 12 days
Direct flights SEA to ONT on Delta
Flight # Depart SEA Arrive ONT Sun Mon Tue Wed Thu Fri Sat Valid Between
9107 2:05 pm 4:39 pm Jul 30 - Jul 31
9129 2:05 pm 4:39 pm Aug 11 - Aug 18
9129 2:05 pm 4:39 pm Aug 19 - Aug 25
9129 2:05 pm 4:39 pm Aug 1 - Aug 6
9129 2:05 pm 4:39 pm Aug 3 - Aug 10
9129 2:05 pm 4:39 pm Aug 9 - Aug 12
9129 2:05 pm 4:39 pm Aug 17 - Aug 21
9129 2:05 pm 4:39 pm Aug 26 - Aug 27
9129 2:35 pm 5:10 pm Aug 28 - Sep 4
* Prices are per person and are for e–tickets and include all taxes & fees in USD.

We attempt to get accurate prices, however, prices are not guaranteed.

Here's why:

We’re not the seller.
At KAYAK we don’t set the prices, so it’s not possible for us to guarantee what other companies are selling.

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Our service lets you quickly and easily compare results from hundreds of travel sites at once. In this sense, KAYAK is a search engine and we can't guarantee prices we find.

Why aren’t prices accurate 100% of the time?
Prices on airline seats, hotel rooms and car rentals can change frequently. Several people may also be trying to buy the same travel option simultaneously. As a result, you may find, on occasion, that certain prices are no longer available.

If you have more questions or if you have a bad price to report to us,
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Airports
Origin

Seattle
$132
Destination

Ontario
$132
Airlines Airline reviews

20 travelers who booked a flight from Seattle to Ontario rated their chosen airlines with an average of 8.8.

Overall
9.0
Boarding
9.4
Crew
9.0
Comfort
8.7
Food
8.1
Entertainment
7.5