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Cheap flights from Portland to Ontario from $38

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Portland to Ontario departing on 11/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Portland to Los Angeles

Cheap round-trip flights

These are some of the best round-trip flight deals from Portland to Los Angeles that have been recently found on momondo from popular airlines, departing in the coming months.

Cheap one-way flights

Flying one-way? These are some of the best deals recently discovered on momondo for flights from Portland to Los Angeles.

Cheap last minute flights

Planning a quick getaway from Portland to Los Angeles? These are the last-minute flight deals available now.

Cheap direct flights

If you prefer a non-stop journey, check out our latest direct flight deals to Los Angeles, so you can enjoy a seamless trip without layovers.

Cheap bus & train deals from Portland to Los Angeles

Find recent round-trip train or bus tickets from Portland to Los Angeles.

All round-trip flight deals to Los Angeles

The cheapest plane tickets to Los Angeles found on KAYAK recently.
1:56 pm - 4:16 pmPDX-ONT
2h 20mnonstop
6:36 pm - 8:58 pmONT-PDX
2h 22mnonstop
$67Frontier
Find Deal
Sat, Nov 16 - Sun, Nov 17
10:37 am - 12:57 pmPDX-ONT
2h 20mnonstop
4:04 pm - 6:25 pmONT-PDX
2h 21mnonstop
$68Frontier
Find Deal
Fri, Dec 13 - Wed, Dec 18
8:13 am - 10:34 amPDX-ONT
2h 21mnonstop
5:44 pm - 8:10 pmONT-PDX
2h 26mnonstop
$137Alaska Airlines
Find Deal
Tue, Jan 28 - Tue, Feb 4
3:05 pm - 8:03 pmPDX-ONT
4h 58m1 stop
7:00 am - 9:22 amONT-PDX
2h 22mnonstop
$146Alaska Airlines
Find Deal
Tue, Nov 19 - Wed, Nov 20
5:05 am - 10:38 amPDX-ONT
5h 33m1 stop
5:25 pm - 11:16 pmONT-PDX
5h 51m1 stop
$176Delta
Find Deal
Wed, Nov 20 - Thu, Nov 21
3:20 pm - 12:14 amPDX-ONT
8h 54m2 stops
5:35 pm - 11:00 pmONT-PDX
5h 25m1 stop
$185Delta
Find Deal
Mon, Dec 16 - Wed, Dec 18
1:51 pm - 8:00 pmPDX-ONT
6h 09m1 stop
8:04 am - 10:25 amONT-PDX
2h 21mnonstop
Tue, Dec 3 - Fri, Dec 6
4:16 pm - 10:23 pmPDX-ONT
6h 07m1 stop
6:00 am - 1:10 pmONT-PDX
7h 10m1 stop
$211United Airlines
Find Deal
Sun, Nov 10 - Tue, Dec 3
6:15 pm - 8:36 pmPDX-ONT
2h 21mnonstop
6:00 am - 10:54 amONT-PDX
4h 54m1 stop
Thu, Feb 13 - Mon, Feb 17
4:16 pm - 10:23 pmPDX-ONT
6h 07m1 stop
6:00 am - 10:15 amONT-PDX
4h 15m1 stop
$228United Airlines
Find Deal
Mon, Nov 25 - Fri, Nov 29
1:56 pm - 4:16 pmPDX-ONT
2h 20mnonstop
$38Frontier
Find Deal
Sat, Nov 9
10:02 am - 12:22 pmPDX-ONT
2h 20mnonstop
$43Frontier
Find Deal
Fri, Nov 22
8:13 am - 10:34 amPDX-ONT
2h 21mnonstop
$69Alaska Airlines
Find Deal
Wed, Feb 5
1:51 pm - 9:04 pmPDX-ONT
7h 13m1 stop
$78Alaska Airlines
Find Deal
Sat, Dec 7
7:20 pm - 11:53 pmPDX-ONT
4h 33m1 stop
$93Delta
Find Deal
Thu, Dec 5
5:50 pm - 10:42 pmPDX-ONT
4h 52m1 stop
$98Delta
Find Deal
Fri, Dec 13
4:16 pm - 10:23 pmPDX-ONT
6h 07m1 stop
$103United Airlines
Find Deal
Wed, Nov 6
11:27 am - 5:53 pmPDX-ONT
6h 26m1 stop
$113United Airlines
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Wed, Dec 25
5:05 pm - 11:35 pmPDX-ONT
6h 30m2 stops
$198Southwest
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Fri, Nov 15
6:40 am - 2:30 pmPDX-ONT
7h 50m1 stop
$199Southwest
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Fri, Nov 29
9:52 am - 12:02 pmPDX-ONT
2h 10mnonstop
10:34 am - 12:56 pmONT-PDX
2h 22mnonstop
$91Frontier
Find Deal
Mon, Nov 4 - Sat, Nov 9
9:52 am - 12:02 pmPDX-ONT
2h 10mnonstop
6:32 pm - 8:54 pmONT-PDX
2h 22mnonstop
$103Frontier
Find Deal
Mon, Nov 4 - Thu, Nov 7
9:52 am - 12:02 pmPDX-ONT
2h 10mnonstop
7:12 pm - 9:27 pmONT-PDX
2h 15mnonstop
$108Frontier
Find Deal
Mon, Nov 4 - Mon, Nov 4
9:22 am - 11:32 amPDX-ONT
2h 10mnonstop
9:26 am - 12:29 amONT-PDX
15h 03m1 stop
Sun, Nov 3 - Wed, Nov 6
5:20 pm - 9:55 pmPDX-ONT
4h 35m1 stop
6:15 am - 12:37 pmONT-PDX
6h 22m1 stop
$236Delta
Find Deal
Mon, Nov 4 - Tue, Nov 5
4:54 pm - 7:04 pmPDX-ONT
2h 10mnonstop
7:00 am - 9:22 amONT-PDX
2h 22mnonstop
$247Alaska Airlines
Find Deal
Mon, Nov 4 - Wed, Nov 6
5:20 pm - 9:55 pmPDX-ONT
4h 35m1 stop
6:15 am - 12:37 pmONT-PDX
6h 22m1 stop
$306Delta
Find Deal
Sat, Nov 2 - Tue, Nov 5
8:40 pm - 10:50 pmPDX-ONT
2h 10mnonstop
7:00 am - 9:22 amONT-PDX
2h 22mnonstop
$307Alaska Airlines
Find Deal
Sun, Nov 3 - Wed, Nov 6
6:00 am - 9:53 amPDX-ONT
3h 53m1 stop
10:35 am - 3:10 pmONT-PDX
4h 35m1 stop
$376United Airlines
Find Deal
Sat, Nov 2 - Tue, Nov 5
1:42 pm - 5:43 pmPDX-ONT
4h 01m1 stop
10:35 am - 3:10 pmONT-PDX
4h 35m1 stop
$396United Airlines
Find Deal
Thu, Oct 31 - Tue, Nov 5
1:56 pm - 4:16 pmPDX-ONT
2h 20mnonstop
6:36 pm - 8:58 pmONT-PDX
2h 22mnonstop
$67Frontier
Find Deal
Sat, Nov 16 - Sun, Nov 17
10:37 am - 12:57 pmPDX-ONT
2h 20mnonstop
4:04 pm - 6:25 pmONT-PDX
2h 21mnonstop
$68Frontier
Find Deal
Fri, Dec 13 - Wed, Dec 18
7:29 pm - 9:49 pmPDX-ONT
2h 20mnonstop
6:03 pm - 8:24 pmONT-PDX
2h 21mnonstop
$72Frontier
Find Deal
Wed, Jan 1 - Mon, Jan 6
10:37 am - 12:57 pmPDX-ONT
2h 20mnonstop
8:04 am - 10:25 amONT-PDX
2h 21mnonstop
$75Frontier
Find Deal
Fri, Dec 6 - Mon, Dec 9
9:22 am - 11:42 amPDX-ONT
2h 20mnonstop
6:36 pm - 8:58 pmONT-PDX
2h 22mnonstop
$76Frontier
Find Deal
Thu, Nov 14 - Sun, Nov 17
10:37 am - 12:57 pmPDX-ONT
2h 20mnonstop
7:00 am - 9:25 amONT-PDX
2h 25mnonstop
Fri, Dec 6 - Sun, Dec 8
9:22 am - 11:42 amPDX-ONT
2h 20mnonstop
7:59 pm - 10:16 pmONT-PDX
2h 17mnonstop
Sun, Nov 17 - Thu, Nov 21
8:13 am - 10:34 amPDX-ONT
2h 21mnonstop
5:44 pm - 8:10 pmONT-PDX
2h 26mnonstop
$137Alaska Airlines
Find Deal
Tue, Jan 28 - Tue, Feb 4
8:20 am - 10:36 amPDX-ONT
2h 16mnonstop
11:14 am - 1:38 pmONT-PDX
2h 24mnonstop
$147Alaska Airlines
Find Deal
Wed, Dec 11 - Wed, Jan 8
1:20 pm - 3:45 pmPDX-ONT
2h 25mnonstop
2:45 pm - 5:10 pmONT-PDX
2h 25mnonstop
$460Southwest
Find Deal
Sat, Dec 21 - Sat, Dec 28

Frontier flights from Portland to Ontario

Our best Frontier deals on Portland to Ontario flight tickets
Frontier
Nov 16
PDX1:56 pmPortland
2h 20m
ONT4:16 pmOntario
Nov 17
ONT6:36 pmOntario
2h 22m
PDX8:58 pmPortland
Frontier
Dec 13
PDX10:37 amPortland
2h 20m
ONT12:57 pmOntario
Dec 18
ONT4:04 pmOntario
2h 21m
PDX6:25 pmPortland
Frontier
Jan 1
PDX7:29 pmPortland
2h 20m
ONT9:49 pmOntario
Jan 6
ONT6:03 pmOntario
2h 21m
PDX8:24 pmPortland

Delta flights from Portland to Ontario

Our best Delta deals on Portland to Ontario flight tickets
Delta
Nov 20
PDX5:05 amPortland
5h 33m
1 stop
ONT10:38 amOntario
Nov 21
ONT5:25 pmOntario
5h 51m
1 stop
PDX11:16 pmPortland
Delta
Dec 16
PDX3:20 pmPortland
8h 54m
2 stops
ONT12:14 amOntario
Dec 18
ONT5:35 pmOntario
5h 25m
1 stop
PDX11:00 pmPortland
Delta
Nov 12
PDX5:05 amPortland
5h 33m
1 stop
ONT10:38 amOntario
Nov 15
ONT5:00 pmOntario
6h 44m
1 stop
PDX11:44 pmPortland

How to get the cheapest flight ticket from Portland to Ontario

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly from Portland to Ontario?

September. The cheapest time of year to fly to Ontario from Portland is September. Most expensive is March

What is the cheapest day to depart Portland for Ontario?

Thursday. The cheapest day of the week is typically Thursday. The most expensive is typically Sunday

When is the cheapest time to fly from Portland to Ontario?

In the afternoon. Portland to Ontario flights are approximately 36% more expensive in the morning than in the afternoon

What is the cheapest airline that flies to Ontario from Portland?

Frontier. Frontier, Spirit Airlines, and Alaska Airlines are the most popular carriers operating from Portland to Ontario

What is the cheapest Portland to Ontario flight route?

Portland - Ontario. Fly from Portland to Ontario for the best Portland - Ontario flight prices

How far in advance should you book Portland to Ontario flights?

26 days before. The cheapest time to buy a flight from Portland to Ontario is approximately 26 days to departure

How many flights depart from Portland to Ontario on average per day?

As of October 2024, 1 flights take off from Portland and land in Ontario each day. The most common flight departure time for this route is 8:00AM, with 49% of daily flights taking off at noon.

How many flights depart from Portland to Ontario on average per week?

As of October 2024, there are 12 flights per week flying from Portland to Ontario. The most common day of the week flights depart is Wednesday, with 33% of flights taking off on this day.

Can stopping save me money on Portland to Ontario flights?

No. A direct flight is the cheapest option for a flight between Portland to Ontario.

How have Portland to Ontario flight prices changed over time?

As of October 2024, prices for Portland to Ontario flights are approximately 71% cheaper when compared to flights at the same time last year.

When to book flights from Portland to Ontario

Are you open to changing your travel dates? Check out the ideal times to fly from Portland to Ontario according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Portland to Ontario (PDX to ONT) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Portland to Ontario

Best Price Found

$38

Fastest flight time

2h 10m

Direct flights

Every day

Airports in Ontario

1 airport
The best one-way flight to Ontario from Portland in the past 72 hours is $38. The best round-trip flight deal from Portland to Ontario found on momondo in the last 72 hours is $67.
The fastest flight from Portland to Ontario takes 2h 10m
Direct flights go from Portland to Ontario every day.
There is 1 airport near Ontario: Ontario (ONT)

  • How far is Portland to Ontario by plane?

    The straight-line distance from Portland to Ontario is 834.5 mi. By plane, this route typically takes 2h 10m.

  • When did momondo last update prices for flights from Portland Airport to Ontario Airport?

    Prices for flights from Portland Airport to Ontario Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Portland Airport to Ontario Airport?

  • How old do you have to be to fly from Portland Airport to Ontario Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Portland Airport to Ontario Airport.

  • What documentation or ID do you need to fly to Ontario Airport?

    The travel and health documents required for your trip to Ontario Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Ontario Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular plane model from Portland to Ontario?

  • What is the most popular airline from Portland to Ontario?


Best airlines flying from Portland to Ontario

Compare and see reviews for airlines that fly from Portland to Ontario with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $52Free CancellationRating
6.1
3,583 reviews
Search Frontier flights
Spirit AirlinesPriceFrom $69Free CancellationRating
6.3
8,190 reviews
Search Spirit Airlines flights
Alaska AirlinesPriceFrom $155Free CancellationRating
8.0
9,418 reviews
Search Alaska Airlines flights
United AirlinesPriceFrom $193Free CancellationRating
7.4
9,240 reviews
Search United Airlines flights
DeltaPriceFrom $222Free CancellationRating
8.0
8,836 reviews
Search Delta flights
  • Alaska Airlines Flights From Portland to Ontario

    Alaska Airlines flies from Portland to Ontario around 6 times per week, with 9,418 momondo users rating the airline 8.0/10. The cheapest Alaska Airlines deal from Portland to Ontario in the last 72 hours was $155 (round-trip), much lower than the average airfare cost of $304 for Alaska Airlines flights on this route.


Why use momondo?

Why should I use momondo to find a flight deal from Portland to Ontario?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Portland to Ontario for you.

Can I find flights from Portland to Ontario with flexible booking policies on momondo?

All flight searches from Portland to Ontario on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Portland to Ontario?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Portland to Ontario.

I’m not ready to book a flight from Portland to Ontario right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Portland to Ontario flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.


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