United Airlines Ontario to Seattle Flights

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Cheapflightsplus.com will find cheap United Airlines flights from Ontario to Seattle. Compare airline ticket prices and book air tickets starting from $71 from trusted online travel agencies, web sites and directly from airlines. Check flights schedule of United Airlines, arrivals and departure details below.

Find Cheap Airfare Ontario (CA) — Seattle (WA) by United Airlines

To find cheap tickets choose a day of your departure with attractive price on the graph below and click «Find flights». For round trip flights please click «Check prices for return flight». The cheapest airfare is in may: one-way - $71, two-way – $122.

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Cheap Flights from Ontario to Seattle by United Airlines

Look at the list of plane tickets for the most connecting flights by United Airlines, their prices start from $71. There’re no direct flights. The fastest connecting flight – 4h 24m.

Price	Departure	Arrival	Flight Time	Airline	Flight
from $71 Find flight	6:05 am Ontario Ontario Int.	10:44 am Seattle Seattle-Tacoma Intl	4h 39m layover 0h 59m - San Francisco	United Airlines	UA295 UA1867
from $82 Find flight	8:20 pm Ontario Ontario Int.	0:51 am+1 день Seattle Seattle-Tacoma Intl	4h 31m layover 1h 4m - San Francisco	United Airlines	UA5366 UA351
from $85 Find flight	4:42 pm Ontario Ontario Int.	9:06 pm Seattle Seattle-Tacoma Intl	4h 24m layover 0h 51m - San Francisco	United Airlines	UA5286 UA2378
from $85 Find flight	4:45 pm Ontario Ontario Int.	9:38 pm Seattle Seattle-Tacoma Intl	4h 53m layover 1h 16m - San Francisco	United Airlines	UA5286 UA733
from $85 Find flight	6:05 am Ontario Ontario Int.	1:02 pm Seattle Seattle-Tacoma Intl	6h 57m layover 3h 17m - San Francisco	United Airlines	UA295 UA209
from $87 Find flight	11:49 am Ontario Ontario Int.	7:10 pm Seattle Seattle-Tacoma Intl	7h 21m layover 3h 46m - San Francisco	United Airlines	UA5228 UA2161
from $105 Find flight	7:35 pm Ontario Ontario Int.	1:14 am+1 день Seattle Seattle-Tacoma Intl	5h 39m layover 2h 3m - San Francisco	United Airlines	UA5366 UA351
from $105 Find flight	11:49 am Ontario Ontario Int.	5:50 pm Seattle Seattle-Tacoma Intl	6h 1m layover 2h 27m - San Francisco	United Airlines	UA5228 UA1449
from $107 Find flight	3:45 pm Ontario Ontario Int.	8:35 pm Seattle Seattle-Tacoma Intl	4h 50m layover 1h 18m - San Francisco	United Airlines	UA5500 UA1833
from $107 Find flight	3:45 pm Ontario Ontario Int.	10:29 pm Seattle Seattle-Tacoma Intl	6h 44m layover 3h 3m - San Francisco	United Airlines	UA5500 UA733
from $137 Find flight	5:41 am Ontario Ontario Int.	1:12 pm Seattle Seattle-Tacoma Intl	7h 31m layover 2h 10m - Denver	United Airlines	UA1475 UA404
from $145 Find flight	9:29 am Ontario Ontario Int.	3:22 pm Seattle Seattle-Tacoma Intl	5h 53m layover 2h 12m - San Francisco	United Airlines	UA5186 UA759

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*Departure and arrival times are local. Prices are for one-way flights. Information refreshed on 05/18/2024

United Airlines Flight Schedule Ontario to Seattle

Below is a detailed 2024 flight schedule for today, tomorrow and all other days. It may vary depending on season and a day of the week of your desired trip. We recommend booking your itinerary at least 2 weeks prior your travel to get the best price and availability by the airline.

Departure	Flight Details	Flight Time	Price
11:49 am — 7:10 pm	11:49 am — 1:16 pm UA5228 United Airlines Ontario — San Francisco 3h 46m stop 5:02 pm — 7:10 pm UA2161 United Airlines San Francisco — Seattle	7h 21m including layover	Find flight from$87
11:49 am — 5:50 pm	11:49 am — 1:16 pm UA5228 United Airlines Ontario — San Francisco 2h 27m stop 3:43 pm — 5:50 pm UA1449 United Airlines San Francisco — Seattle	6h 1m including layover	Find flight from$105
12:45 pm — 11:08 pm	12:45 pm — 6:00 pm UA6068 United Airlines Ontario — Houston 2h 20m stop 8:20 pm — 11:08 pm UA459 United Airlines Houston — Seattle	10h 23m including layover	Find flight from$121
12:45 pm — 12:20 pm +1 day	12:45 pm — 6:00 pm UA6068 United Airlines Ontario — Houston 15h 40m stop 9:40 am — 12:20 pm UA1289 United Airlines Houston — Seattle	23h 35m including layover	Find flight from$142
1:35 pm — 7:39 pm	1:35 pm — 4:45 pm UA1635 United Airlines Ontario — Denver 1h 4m stop 5:49 pm — 7:39 pm UA1051 United Airlines Denver — Seattle	6h 4m including layover	Find flight from$173
1:35 pm — 9:09 pm	1:35 pm — 4:45 pm UA1635 United Airlines Ontario — Denver 2h 35m stop 7:20 pm — 9:09 pm UA2223 United Airlines Denver — Seattle	7h 34m including layover	Find flight from$173
3:45 pm — 8:35 pm	3:45 pm — 5:07 pm UA5500 United Airlines Ontario — San Francisco 1h 18m stop 6:25 pm — 8:35 pm UA1833 United Airlines San Francisco — Seattle	4h 50m including layover	Find flight from$107
3:45 pm — 10:29 pm	3:45 pm — 5:07 pm UA5500 United Airlines Ontario — San Francisco 3h 3m stop 8:10 pm — 10:29 pm UA733 United Airlines San Francisco — Seattle	6h 44m including layover	Find flight from$107
4:42 pm — 9:06 pm	4:42 pm — 6:08 pm UA5286 United Airlines Ontario — San Francisco 51m stop 6:59 pm — 9:06 pm UA2378 United Airlines San Francisco — Seattle	4h 24m including layover	Find flight from$85
4:45 pm — 9:38 pm	4:45 pm — 6:12 pm UA5286 United Airlines Ontario — San Francisco 1h 16m stop 7:28 pm — 9:38 pm UA733 United Airlines San Francisco — Seattle	4h 53m including layover	Find flight from$85
6:05 am — 10:44 am	6:05 am — 7:31 am UA295 United Airlines Ontario — San Francisco 59m stop 8:30 am — 10:44 am UA1867 United Airlines San Francisco — Seattle	4h 39m including layover	Find flight from$71
6:05 am — 1:02 pm	6:05 am — 7:31 am UA295 United Airlines Ontario — San Francisco 3h 17m stop 10:48 am — 1:02 pm UA209 United Airlines San Francisco — Seattle	6h 57m including layover	Find flight from$85
7:35 pm — 1:14 am +1 day	7:35 pm — 9:02 pm UA5366 United Airlines Ontario — San Francisco 2h 3m stop 11:05 pm — 1:14 am UA351 United Airlines San Francisco — Seattle	5h 39m including layover	Find flight from$105
8:00 am — 3:14 pm	8:00 am — 9:21 am UA5643 United Airlines Ontario — San Francisco 3h 39m stop 1:00 pm — 3:14 pm UA1007 United Airlines San Francisco — Seattle	7h 14m including layover	Find flight from$170
8:20 pm — 0:51 am +1 day	8:20 pm — 9:43 pm UA5366 United Airlines Ontario — San Francisco 1h 4m stop 10:47 pm — 0:51 am UA351 United Airlines San Francisco — Seattle	4h 31m including layover	Find flight from$82
9:29 am — 3:22 pm	9:29 am — 11:03 am UA5186 United Airlines Ontario — San Francisco 2h 12m stop 1:15 pm — 3:22 pm UA759 United Airlines San Francisco — Seattle	5h 53m including layover	Find flight from$145
5:41 am — 3:14 pm	5:41 am — 9:05 am UA1475 United Airlines Ontario — Denver 1h stop 10:05 am — 11:40 am UA1068 United Airlines Denver — San Francisco 1h 20m stop 1:00 pm — 3:14 pm UA1007 United Airlines San Francisco — Seattle	9h 33m including layover	Find flight from$120
5:41 am — 5:20 pm	5:41 am — 9:05 am UA1475 United Airlines Ontario — Denver 1h stop 10:05 am — 11:40 am UA1068 United Airlines Denver — San Francisco 3h 20m stop 3:00 pm — 5:20 pm UA5351 United Airlines San Francisco — Seattle	11h 39m including layover	Find flight from$120
7:35 pm — 12:41 pm +1 day	7:35 pm — 9:02 pm UA5366 United Airlines Ontario — San Francisco 3h 28m stop 0:30 am — 6:40 am UA680 United Airlines San Francisco — Chicago 3h 25m stop 10:05 am — 12:41 pm UA635 United Airlines Chicago — Seattle	17h 6m including layover	Find flight from$246
9:29 am — 7:39 pm	9:29 am — 11:03 am UA5186 United Airlines Ontario — San Francisco 2h 11m stop 1:14 pm — 4:55 pm UA1013 United Airlines San Francisco — Denver 54m stop 5:49 pm — 7:39 pm UA1051 United Airlines Denver — Seattle	10h 10m including layover	Find flight from$200

Departure	Arrival	Flight Details	Flight Time	Price
		stop stop	including layover	Find flight from$

*Departure and arrival times are local. Last updated on 05/18/2024

Flight Information

There are 107 flights by United Airlines from Ontario to Seattle every week with departures from Ontario Int. and International Heliport. All flights arrive at Seattle-Tacoma Intl, Boeing Field International Airport, Kenmore Air Harbor SPB.

Departures start from 11:49 am to 9:35 am. Nonstop flight is 4h 24m. The time difference between Ontario and Seattle is 0h.

The fastest flight 4h 24m
Average flight time 9h 52m
The earliest flight 11:49 am
The latest flight 9:35 am
Distance 957 ml

The cheapest flight by United Airlines that our users were able to find is $71. This airfare is economy class on one-way UA295 flight for October 4, 2018 leaving Ontario Int. in Ontario at 6:05 am, it includes all taxes and additional fees.

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United Airlines Airplanes on the Route

List of the most popular United Airlines airplanes flying from Ontario to Seattle:

Airbus A319

from $71

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Canadair CRJ

from $82

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Bombardier CRJ

from $87

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Canadair Regional Jet

from $107

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Boeing 737-900

from $120

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Embraer 175 (winglets)

from $142

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Boeing 737-800

from $173

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Other Popular Airlines on the Route

Besides United Airlines there are other 6 airline carriers between Ontario and Seattle. Please review schedules and prices from the most popular airlines to find the best airfare deals from Ontario to Seattle.

Nonstop flights

There are 7 direct flights every day from Ontario. Airlines and fares are below:

AS - Alaska Airlines

from $116

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DL - Delta Air Lines Inc.

from $159

Find

See more direct flights

Connecting Flights

List of flights with layovers (1 and more stops):

AA - American Airlines

from $68

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AS - Alaska Airlines

from $162

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F9 - Frontier Airlines

from $85

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WN - Southwest Airlines

from $92

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DL - Delta Air Lines Inc.

from $85

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Y4 - Volaris

from $162

Find

See more connecting flights

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