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United flights from Portland, OR to Ontario starting at

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Low fare calendar for flights from Portland, OR (PDX) to Ontario (ONT)

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$551 Price subject to changes
Viewed:6 hours ago
Economy
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$316 Price subject to changes
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$272 Price subject to changes
Viewed:16 hours ago
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$272 Price subject to changes
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$272 Price subject to changes
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$272 Price subject to changes
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$285 Price subject to changes
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$316 Price subject to changes
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$285 Price subject to changes
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$172 Price subject to changes
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$172 Price subject to changes
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$232 Price subject to changes
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$301 Price subject to changes
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$172 Price subject to changes
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$301 Price subject to changes
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$301 Price subject to changes
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$223 Price subject to changes
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$172 Price subject to changes
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$301 Price subject to changes
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$181 Price subject to changes
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$221 Price subject to changes
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$301 Price subject to changes
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$181 Price subject to changes
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$221 Price subject to changes
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$148 Price subject to changes
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$230 Price subject to changes
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$166 Price subject to changes
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$195 Price subject to changes
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$166 Price subject to changes
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$301 Price subject to changes
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$148 Price subject to changes
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$148 Price subject to changes
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$166 Price subject to changes
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$166 Price subject to changes
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$148 Price subject to changes
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Lowest PriceToday
*Prices have been available for round trips within the last 48 hours and may not be currently available. For Economy class, fares listed may be Basic Economy, which is our most restrictive fare option and subject to additional restrictions. Additional baggage charges and fees for other optional service may apply. Other terms and conditions may apply.

More United deals on Portland, OR (PDX) to Ontario (ONT) flights

FromToDatesFare TypePrice

Portland, OR (PDX)

Ontario (ONT)

Depart: 10/21/20

Return: 10/28/20

Roundtrip
from
$148*
Viewed:15hoursago

Portland, OR (PDX)

Ontario (ONT)

Depart: 12/01/20

Return: 12/15/20

Roundtrip
from
$148*
Viewed:15hoursago

Portland, OR (PDX)

Ontario (ONT)

Depart: 12/02/20

Return: 12/16/20

Roundtrip
from
$148*
Viewed:15hoursago

Portland, OR (PDX)

Ontario (ONT)

Depart: 12/01/20

Return: 12/08/20

Roundtrip
from
$148*
Viewed:15hoursago

Portland, OR (PDX)

Ontario (ONT)

Depart: 12/02/20

Return: 12/09/20

Roundtrip
from
$148*
Viewed:15hoursago

Portland, OR (PDX)

Ontario (ONT)

Depart: 12/05/20

Return: 12/12/20

Roundtrip
from
$148*
Viewed:15hoursago

Portland, OR (PDX)

Ontario (ONT)

Depart: 12/09/20

Return: 12/16/20

Roundtrip
from
$148*
Viewed:15hoursago

Portland, OR (PDX)

Ontario (ONT)

Depart: 10/21/20

Return: 11/04/20

Roundtrip
from
$148*
Viewed:15hoursago

Portland, OR (PDX)

Ontario (ONT)

Depart: 10/27/20

Return: 11/03/20

Roundtrip
from
$148*
Viewed:15hoursago

Portland, OR (PDX)

Ontario (ONT)

Depart: 10/28/20

Return: 11/04/20

Roundtrip
from
$148*
Viewed:15hoursago

*Prices have been available for round trips within the last 48 hours and may not be currently available. For Economy class, fares listed may be Basic Economy, which is our most restrictive fare option and subject to additional restrictions. Additional baggage charges and fees for other optional service may apply. Other terms and conditions may apply.

Weather in Ontario

Saturday sky is clear
77°F 09/26/20
Sunday few clouds
84°F 09/27/20
Monday sky is clear
90°F 09/28/20
Tuesday sky is clear
95°F 09/29/20
Wednesday sky is clear
96°F 09/30/20
Thursday sky is clear
94°F 10/01/20
Friday sky is clear
93°F 10/02/20
Powered by: OpenWeatherMap.org