Cheap Flights from Portland to Ontario
We've found these cheap flights for you. You can book one-way or return flight tickets.
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Flights from Portland to Ontario Starting at NZD 106
We've found these cheap flights for you. You can book one-way or return flight tickets.
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Round-trip
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One way
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Cheapest nonstop
PDX 21:412h 18mNonstopONT 23:59Portland - Ontario | Wed, Apr 2 | Hawaiian Airlines
SIN 06:302h 39mNonstopPDX 09:09Ontario - Portland | Tue, Apr 8 | Frontier AirlinesNZD 185 NZD 24324% OFF24% OFFNZD 243 NZD 185 -
PDX 21:412h 18mNonstopONT 23:59Portland - Ontario | Tue, Apr 8 | Hawaiian Airlines
SIN 17:572h 34mNonstopPDX 20:31Ontario - Portland | Thu, Apr 10 | Frontier AirlinesNZD 185 NZD 24324% OFF24% OFFNZD 243 NZD 185
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PDX 21:422h 16mNonstopONT 23:58Portland - Ontario | Tue, May 6 | Hawaiian Airlines
SIN 09:342h 41mNonstopPDX 12:15Ontario - Portland | Thu, May 8 | Frontier AirlinesNZD 186 NZD 24323% OFF23% OFFNZD 243 NZD 186
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PDX 21:412h 18mNonstopONT 23:59Portland - Ontario | Wed, Apr 2 | Alaska Airlines
SIN 06:302h 39mNonstopPDX 09:09Ontario - Portland | Tue, Apr 8 | Frontier AirlinesNZD 18623% OFFNZD 243 NZD 186 -
PDX 07:002h 16mNonstopONT 09:16Portland - Ontario | Tue, May 6 | Alaska Airlines
SIN 09:342h 41mNonstopPDX 12:15Ontario - Portland | Thu, May 8 | Frontier AirlinesNZD 18822% OFFNZD 243 NZD 188
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PDX 21:412h 18mNonstopONT 23:59Portland - Ontario | Tue, Apr 15 | Hawaiian Airlines
SIN 06:302h 39mNonstopPDX 09:09Ontario - Portland | Wed, Apr 16 | Frontier AirlinesNZD 18922% OFFNZD 243 NZD 189
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PDX 09:5414h 5m1 stopsONT 23:59Portland - Ontario | Tue, Apr 8 | Frontier Airlines
SIN 06:302h 34mNonstopPDX 09:04Ontario - Portland | Tue, Apr 15 | Frontier AirlinesNZD 16333% OFFNZD 243 NZD 163 -
PDX 18:3615h 17m1 stopsONT 09:53Portland - Ontario | Mon, Apr 28 | Frontier Airlines
SIN 09:342h 41mNonstopPDX 12:15Ontario - Portland | Mon, May 5 | Frontier AirlinesNZD 17628% OFFNZD 243 NZD 176
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PDX 13:1518h 9m1 stopsONT 07:24Portland - Ontario | Sun, May 4 | Frontier Airlines
SIN 09:342h 41mNonstopPDX 12:15Ontario - Portland | Thu, May 8 | Frontier AirlinesNZD 18225% OFFNZD 243 NZD 182
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PDX 07:0017h 9m1 stopsONT 00:09Portland - Ontario | Wed, Mar 26 | Frontier Airlines
SIN 06:302h 34mNonstopPDX 09:04Ontario - Portland | Tue, Apr 1 | Frontier AirlinesNZD 18424% OFFNZD 243 NZD 184
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PDX 13:0017h 25m1 stopsONT Invalid DatePortland - Ontario | Sun, Mar 23 | Normal Airline
ONT 15:006hNonstopPDX 16:00Ontario - Portland | Tue, Mar 25 | Normal AirlineFind More FlightsFind More Flights
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Cheapest nonstop
PDX 21:422h 16mNonstopONT 23:58Portland - Ontario | Tue, May 6 | Hawaiian AirlinesNZD 121 NZD 15924% OFF24% OFFNZD 159 NZD 121
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PDX 21:412h 18mNonstopONT 23:59Portland - Ontario | Tue, Apr 8 | Alaska AirlinesNZD 124 NZD 15922% OFF22% OFFNZD 159 NZD 124
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PDX 21:2117h 43m1 stopsONT 15:04Portland - Ontario | Mon, Apr 14 | Frontier AirlinesNZD 106 NZD 15933% OFF33% OFFNZD 159 NZD 106
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PDX 21:2123h 51m1 stopsONT 21:12Portland - Ontario | Fri, Apr 11 | Frontier AirlinesNZD 10733% OFFNZD 159 NZD 107
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PDX 09:5414h 5m1 stopsONT 23:59Portland - Ontario | Tue, Apr 8 | Frontier AirlinesNZD 10832% OFFNZD 159 NZD 108
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PDX 06:2017h 39m1 stopsONT 23:59Portland - Ontario | Wed, Apr 23 | Frontier AirlinesNZD 10931% OFFNZD 159 NZD 109
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PDX 06:2017h 39m1 stopsONT 23:59Portland - Ontario | Wed, Apr 30 | Frontier AirlinesNZD 10931% OFFNZD 159 NZD 109
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PDX 21:2112h 32m1 stopsONT 09:53Portland - Ontario | Mon, Apr 21 | Frontier AirlinesNZD 11031% OFFNZD 159 NZD 110
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PDX 06:4011h 17m1 stopsONT 17:57Portland - Ontario | Sat, Apr 12 | Frontier AirlinesNZD 11130% OFFNZD 159 NZD 111
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PDX 09:5414h 5m1 stopsONT 23:59Portland - Ontario | Wed, Apr 16 | Frontier AirlinesNZD 11130% OFFNZD 159 NZD 111
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PDX 09:127h 30m1 stopsONT 16:42Portland - Ontario | Wed, Apr 2 | Delta Air LinesNZD 11228% OFFNZD 159 NZD 112 -
PDX 14:476h 36m1 stopsONT 21:23Portland - Ontario | Sat, Apr 26 | Frontier AirlinesNZD 11726% OFFNZD 159 NZD 117
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PDX 13:0017h 25m1 stopsONT Invalid DatePortland - Ontario | Sun, Mar 23 | Normal AirlineFind More FlightsFind More Flights
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Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.
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FAQ
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When are flight tickets from Portland (PDX) to Ontario (ONT) the cheapest?
Airlines adjust prices for flights from Portland to Ontario based on the departure date and time of your selection. By analyzing data from all airlines, we've discovered that on Trip.com, you can find the lowest flight prices on Tuesdays, Wednesdays, and Saturdays. -
How much do flights from Portland (PDX) to Ontario (ONT) cost?
According to Trip.com's data, the lowest price is around NZD 405.
How to find a cheap flight from Portland to Ontario
Wait until the last minute and flight costs are often sky-high. Plan ahead, book the right way, and your savings can soar. We have loads of saving tips to help you find a cheap flight from Portland to Ontario. Book your flights at the right time and save more.
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Flight Information from Portland to Ontario
| Cheapest one-way flight price | NZD 80 |
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| Cheapest round-trip ticket price | NZD 142 |
| Off-season for travel | March |
| Peak season for travel | February |
| Flight distance | 12,470.35 km |
| Popular airline | Alaska Airlines |