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Flights from Portland to Ontario
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Flights from Portland to Ontario Starting at NZD 51

We've found these cheap flights for you. You can book one-way or return flight tickets.

  • One way
  • Round-trip
      • Cheapest nonstop
        PDX10:35
        2h 21m
        Nonstop
        ONT12:56
        Fri, Feb 7|Portland - Ontario|Frontier Airlines
        NZD 51NZD 103
        50% OFF
        50% OFF
        NZD 103NZD 51

        Choose Frontier Airlines flights from Portland to Ontario. The one-way direct flight with Frontier Airlines departs from Portland International Airport on Fri, Feb 7, arriving at Ontario International Airport. One-way Prices start from NZD 51 including taxes and charges.

      • PDX10:35
        2h 21m
        Nonstop
        ONT12:56
        Mon, Feb 10|Portland - Ontario|Frontier Airlines
        NZD 56NZD 103
        45% OFF
        45% OFF
        NZD 103NZD 56

        Choose Frontier Airlines flights from Portland to Ontario. The one-way direct flight with Frontier Airlines departs from Portland International Airport on Mon, Feb 10, arriving at Ontario International Airport. One-way Prices start from NZD 56 including taxes and charges.

      • PDX10:35
        2h 21m
        Nonstop
        ONT12:56
        Mon, Feb 3|Portland - Ontario|Frontier Airlines
        NZD 64NZD 103
        38% OFF
        38% OFF
        NZD 103NZD 64

        Choose Frontier Airlines flights from Portland to Ontario. The one-way direct flight with Frontier Airlines departs from Portland International Airport on Mon, Feb 3, arriving at Ontario International Airport. One-way Prices start from NZD 64 including taxes and charges.

      • PDX10:35
        2h 21m
        Nonstop
        ONT12:56
        Fri, Jan 31|Portland - Ontario|Frontier Airlines
        NZD 66
        NZD 66

        Choose Frontier Airlines flights from Portland to Ontario. The one-way direct flight with Frontier Airlines departs from Portland International Airport on Fri, Jan 31, arriving at Ontario International Airport. One-way Prices start from NZD 66 including taxes and charges.

      • PDX14:45
        2h 19m
        Nonstop
        ONT17:04
        Tue, Feb 11|Portland - Ontario|Alaska Airlines
        NZD 73
        NZD 73

        Choose Alaska Airlines flights from Portland to Ontario. The one-way direct flight with Alaska Airlines departs from Portland International Airport on Tue, Feb 11, arriving at Ontario International Airport. One-way Prices start from NZD 73 including taxes and charges.

      • PDX21:44
        2h 14m
        Nonstop
        ONT23:58
        Sat, Feb 15|Portland - Ontario|Alaska Airlines
        NZD 84
        NZD 84

        Choose Alaska Airlines flights from Portland to Ontario. The one-way direct flight with Alaska Airlines departs from Portland International Airport on Sat, Feb 15, arriving at Ontario International Airport. One-way Prices start from NZD 84 including taxes and charges.

      • PDX21:44
        2h 14m
        Nonstop
        ONT23:58
        Thu, Mar 13|Portland - Ontario|Alaska Airlines
        NZD 91
        NZD 91

        Choose Alaska Airlines flights from Portland to Ontario. The one-way direct flight with Alaska Airlines departs from Portland International Airport on Thu, Mar 13, arriving at Ontario International Airport. One-way Prices start from NZD 91 including taxes and charges.

      • PDX21:44
        2h 14m
        Nonstop
        ONT23:58
        Mon, Feb 24|Portland - Ontario|Alaska Airlines
        NZD 93
        NZD 93

        Choose Alaska Airlines flights from Portland to Ontario. The one-way direct flight with Alaska Airlines departs from Portland International Airport on Mon, Feb 24, arriving at Ontario International Airport. One-way Prices start from NZD 93 including taxes and charges.

      • PDX17:26
        5h 58m
        1 stop
        ONT23:24
        Mon, Feb 10|Portland - Ontario|Alaska Airlines
        NZD 75
        NZD 75

        Choose Alaska Airlines flights from Portland to Ontario. The one-way connecting flight with Alaska Airlines departs from Portland International Airport on Mon, Feb 10, arriving at Ontario International Airport. One-way Prices start from NZD 75 including taxes and charges.

      • PDX21:18
        10h 8m
        1 stop
        ONT07:26
        Thu, Feb 20|Portland - Ontario|Frontier Airlines
        NZD 91
        NZD 91

        Choose Frontier Airlines flights from Portland to Ontario. The one-way connecting flight with Frontier Airlines departs from Portland International Airport on Thu, Feb 20, arriving at Ontario International Airport. One-way Prices start from NZD 91 including taxes and charges.

      • PDX01:00 pm
        3h 5m
        Nonstop
        ONT02:00 pm
        Fri, Feb 7|Portland - Ontario|Frontier Airlines
        Find More Flights
        Find More Flights

Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.

Portland to Los Angeles flight time & flight schedules

Flight info.
Departure
Arrival
Weekly Schedule

  1. DL1270

    Delta Air Lines

    05:55

    PDX

    1.9h

    08:50

    SLC

    SMTWTFS
    Search

  2. DL1345

    Delta Air Lines

    11:30

    SLC

    1.9h

    12:26

    ONT

    SMTWTFS

  3. AS3312

    Alaska Airlines

    07:05

    PDX

    2.4h

    Nonstop

    09:28

    ONT

    SMTWTFS
    Search

  4. F93336

    Frontier Airlines

    10:35

    PDX

    2.4h

    Nonstop

    12:56

    ONT

    S---T-S
    Search

  5. AS970

    Alaska Airlines

    11:50

    PDX

    1.0h

    12:48

    SEA

    SMTWTFS
    Search

  6. AS1086

    Alaska Airlines

    15:45

    SEA

    2.5h

    18:17

    ONT

    SMTWTFS

  7. AS3498

    Alaska Airlines

    14:45

    PDX

    2.3h

    Nonstop

    17:04

    ONT

    SMTWTFS
    Search

  8. DL3918

    Delta Air Lines

    17:09

    PDX

    1.1h

    18:14

    SEA

    SMTWTFS
    Search

  9. DL4027

    Delta Air Lines

    19:55

    SEA

    2.8h

    22:40

    ONT

    SMTWTFS

  10. DL1244

    Delta Air Lines

    17:20

    PDX

    1.9h

    20:15

    SLC

    SMTWTFS
    Search

  11. DL1614

    Delta Air Lines

    22:55

    SLC

    2.0h

    23:53

    ONT

    SMTWTFS

  12. AS1295

    Alaska Airlines

    17:50

    PDX

    1.8h

    19:40

    SFO

    SMTWTFS
    Search

  13. F92678

    Frontier Airlines

    22:03

    SFO

    1.5h

    23:31

    ONT

    S--WT-S

  14. AS2074

    Alaska Airlines

    18:03

    PDX

    2.3h

    Nonstop

    20:19

    ONT

    SMTWTFS
    Search

  15. AS1066

    Alaska Airlines

    21:41

    PDX

    2.3h

    Nonstop

    23:59

    ONT

    SMTWTFS
    Search
Find more flights and airlines

Find the best time to fly from Portland to Ontario

We monitor flight fares to help you find the best deals effortlessly

Displayed prices are calculated based on the cheapest average weekly prices of the corresponding route on Trip.com.

FAQ

  • 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 268.

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.
1
Book Early
Once prices are gone, they're gone. Lock in deals while you can!
2
Compare Flight Prices
Compare prices on travel agency and airline websites.
3
Look Out for Deals
Check airline and travel agency websites for latest flight deals
4
Check One-way Fares
Buying two cheap one-way flights can sometimes be a better deal than a round-trip.
5
Try Different Dates
Flying during the week, early in the morning, or late at night can help save money.
6
Use the Trip.com App
Save up to £10 per person when booking your flights on Trip.com

Flight Information from Portland to Ontario

Cheapest nonstop flight priceNZD 51
Cheapest round-trip ticket priceNZD 107
Off-season for travelMarch
Peak season for travelMarch
Flight distance12,470.35 km
Popular airlineAlaska Airlines

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