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Cheap flights from Portland to Ontario (PWM - ONT) from $109

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/27. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
PWM — ONT
Jun 18 — Jun 251
From?
To?
Tue 6/18
Tue 6/25
1 adult, Economy
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Cheap flight deals from Portland to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from Portland (PWM) to Ontario (ONT). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated June 13, 2024.

Popular in

November

Cheapest in

September

Average price

$735

Round-trip from

$238
High demand for flights, 47% potential price rise
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Best time to find cheap flights, 33% potential price drop
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Average for round-trip flights in June 2024
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From Portland to Ontario
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What is the cheapest day to fly round-trip from Portland, Maine to Ontario?

It’s generally more expensive to depart on a Monday, if you have to leave on this day you can still search on Cheapflights to find great options that meet your needs.

How far in advance should I book a flight from Portland, Maine to Ontario?

Travelers have found it’s best to book a flight 37 days in advance to save up to 116% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 37 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from Portland, Maine to Ontario 1-2 weeks in advance for as low as $383, or $715 for flights within the next 24 hours.

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

The best pricing can be found in the month of September. Prices to Ontario from Portland, Maine average $486. You can even find prices in September for less than $486, as users have found deals to Ontario from as low as $252. The month of December appears to be one of the more expensive times to travel to Ontario from Portland, Maine. Flying in the targeted month can save you up to 26%.

What is the cheapest time of day to fly from PWM to ONT?

One of the essential ways to save on airfare from Portland, Maine to Ontario is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight in the afternoon could potentially save you up to 23% on airfare.

Cheap Portland to Ontario flights in June & July 2024

Find cheap flight options from Portland to Ontario specifically for the months of June and July 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 3,214,720 searches. Prices were last updated on June 13, 2024.
These are some of the most attractive deals on flights from Portland to Ontario in 2024. Check back in a little while for more flight options.
Fri 6/284:00 pmPWM - ONT
1 stop9h 59mAmerican Airlines
Sun 6/3011:59 pmONT - PWM
2 stops12h 11mAmerican Airlines
Deal found 6/13$585
Mon 7/153:59 pmPWM - ONT
1 stop10h 01mAmerican Airlines
Mon 7/2210:38 pmONT - PWM
1 stop10h 39mAmerican Airlines
Deal found 6/13$617
Mon 6/244:00 pmPWM - ONT
1 stop9h 59mAmerican Airlines
Sun 6/3011:59 pmONT - PWM
2 stops12h 11mAmerican Airlines
Deal found 6/13$645
Thu 6/206:00 amPWM - ONT
2 stops12h 51mAmerican Airlines
Thu 6/277:26 pmONT - PWM
2 stops12h 11mAmerican Airlines
Deal found 6/13$671
Wed 7/103:59 pmPWM - ONT
1 stop10h 01mAmerican Airlines
Sat 7/2710:36 pmONT - PWM
1 stop10h 42mAmerican Airlines
Deal found 6/13$672
Thu 7/183:59 pmPWM - ONT
1 stop10h 01mAmerican Airlines
Thu 7/2510:36 pmONT - PWM
1 stop10h 42mAmerican Airlines
Deal found 6/13$697
Fri 6/284:00 pmPWM - ONT
1 stop9h 59mAmerican Airlines
Sun 6/3011:59 pmONT - PWM
2 stops12h 11mAmerican Airlines
Deal found 6/12$702
Fri 6/281:05 pmPWM - ONT
2 stops13h 54mAmerican Airlines
Sun 6/3011:59 pmONT - PWM
2 stops12h 11mAmerican Airlines
Deal found 6/13$706
Fri 6/284:00 pmPWM - ONT
1 stop9h 59mAmerican Airlines
Sun 6/3010:45 pmONT - PWM
1 stop10h 29mAmerican Airlines
Deal found 6/13$711

Portland to Ontario 2024 flight deals

Discover exclusive flight deals for travel between Portland and Ontario in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 3,214,720 searches. Data last updated June 13, 2024.
These are some of the most attractive deals on flights from Portland to Ontario in 2024. Check back in a little while for more flight options.
Sat 9/211:06 pmPWM - ONT
1 stop12h 15mJetBlue
Sun 9/2911:36 pmONT - PWM
1 stop9h 35mJetBlue
Deal found 6/12$248
Thu 10/245:13 pmPWM - ONT
1 stop7h 47mAmerican Airlines
Tue 10/297:58 pmONT - PWM
2 stops12h 26mAmerican Airlines
Deal found 6/11$293
Thu 10/246:25 pmPWM - ONT
1 stop8h 01mAmerican Airlines
Wed 10/3011:11 pmONT - PWM
1 stop9h 13mAmerican Airlines
Deal found 6/11$358
Thu 10/245:13 pmPWM - ONT
1 stop7h 47mAmerican Airlines
Wed 10/307:58 pmONT - PWM
2 stops12h 26mAmerican Airlines
Deal found 6/11$363
Thu 8/222:03 pmPWM - ONT
1 stop9h 20mAmerican Airlines
Mon 8/268:10 amONT - PWM
2 stops13h 30mAmerican Airlines
Deal found 6/12$387
Sat 9/2111:00 amPWM - ONT
2 stops12h 02mAmerican Airlines
Sun 9/2911:59 pmONT - PWM
2 stops13h 17mAmerican Airlines
Deal found 6/12$392
Thu 10/246:25 pmPWM - ONT
1 stop8h 01mAmerican Airlines
Tue 10/2911:11 pmONT - PWM
1 stop9h 13mAmerican Airlines
Deal found 6/11$398
Thu 10/243:35 pmPWM - ONT
1 stop7h 57mUnited Airlines
Tue 10/296:00 amONT - PWM
3 stops14h 11mUnited Airlines
Deal found 6/11$413
Tue 8/202:03 pmPWM - ONT
1 stop9h 20mAmerican Airlines
Fri 8/2312:40 pmONT - PWM
1 stop23h 56mAmerican Airlines
Deal found 6/13$420

Portland to Ontario flights leaving soon

Find last-minute flight options from Portland to Ontario for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 3,214,720 searches. Data last updated June 13, 2024.
Check out these flights departing soon from Portland to Ontario. Users should examine the flight details to ensure there are no surprises.
Mon 6/244:00 pmPWM - ONT
1 stop9h 59mAmerican Airlines
Sun 6/3011:59 pmONT - PWM
2 stops12h 11mAmerican Airlines
Deal found 6/13$725
Mon 6/244:00 pmPWM - ONT
1 stop9h 59mAmerican Airlines
Sun 6/3010:45 pmONT - PWM
1 stop10h 29mAmerican Airlines
Deal found 6/13$771
Mon 6/244:00 pmPWM - ONT
2 stops10h 59mAmerican Airlines
Sun 6/308:10 amONT - PWM
2 stops13h 42mAmerican Airlines
Deal found 6/13$796
Tue 6/183:20 pmPWM - ONT
1 stop8h 28mUnited Airlines
Thu 6/205:15 amONT - PWM
1 stop7h 24mUnited Airlines
Deal found 6/12$1,323
Mon 6/173:20 pmPWM - ONT
1 stop8h 28mUnited Airlines
Mon 6/245:15 amONT - PWM
1 stop7h 24mUnited Airlines
Deal found 6/12$1,502
Sat 6/153:20 pmPWM - ONT
1 stop8h 18mUnited Airlines
Sat 6/221:29 pmONT - PWM
1 stop23h 10mUnited Airlines
Deal found 6/12$1,685

One-way flights to Ontario from Portland

Search for one-way flight options from Portland to Ontario. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 3,214,720 searches. Data last updated June 13, 2024.
Take a look at some of the best available options we've come across on one-way flights from Portland to Ontario. For those needing a return trip from Portland, there is a search form available above.
Fri 9/271:03 pmPWM - ONT
1 stop10h 42mAmerican Airlines
Deal found 6/12$109
Fri 9/271:03 pmPWM - ONT
2 stops12h 06mAmerican Airlines
Deal found 6/12$114
Tue 9/101:06 pmPWM - ONT
1 stop12h 15mJetBlue
Deal found 6/11$130
Mon 7/13:20 pmPWM - ONT
1 stop8h 28mUnited Airlines
Deal found 6/12$202
Mon 8/192:03 pmPWM - ONT
1 stop9h 20mAmerican Airlines
Deal found 6/13$220
Wed 10/301:18 pmPWM - ONT
1 stop9h 55mAmerican Airlines
Deal found 6/12$223
Tue 9/103:45 pmPWM - ONT
2 stops12h 00mUnited Airlines
Deal found 6/11$228
Mon 9/91:06 pmPWM - ONT
1 stop12h 15mJetBlue
Deal found 6/11$240
Mon 8/197:25 pmPWM - ONT
2 stops29h 06mUnited Airlines
Deal found 6/13$258

Find flights from Portland to Ontario within your budget

Customize your flight search to find flights from Portland to Ontario that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 3,214,720 searches. Data last updated June 13, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$248 - $627

Route

Depart

Return

Price

PortlandOntario

PWM - ONT

PWMONT

Portland

Sat 9/21

1 stop12h 15m

Ontario

Sun 9/29

1 stop9h 35m

$248

PortlandOntario

PWM - ONT

PWMONT

Portland

Thu 10/24

1 stop7h 47m

Ontario

Tue 10/29

2 stops12h 26m

$293

PortlandOntario

PWM - ONT

PWMONT

Portland

Thu 10/24

1 stop8h 01m

Ontario

Wed 10/30

1 stop9h 13m

$358

PortlandOntario

PWM - ONT

PWMONT

Portland

Thu 10/24

1 stop7h 47m

Ontario

Wed 10/30

2 stops12h 26m

$363

PortlandOntario

PWM - ONT

PWMONT

Portland

Thu 8/22

1 stop9h 20m

Ontario

Mon 8/26

2 stops13h 30m

$387

PortlandOntario

PWM - ONT

PWMONT

Portland

Thu 10/24

1 stop7h 57m

Ontario

Tue 10/29

3 stops14h 11m

$413

PortlandOntario

PWM - ONT

PWMONT

Portland

Tue 8/20

2 stops14h 51m

Ontario

Fri 8/23

2 stops14h 59m

$435

PortlandOntario

PWM - ONT

PWMONT

Portland

Thu 10/24

1 stop7h 57m

Ontario

Wed 10/30

3 stops14h 48m

$440

PortlandOntario

PWM - ONT

PWMONT

Portland

Thu 10/24

1 stop8h 42m

Ontario

Wed 10/30

1 stop7h 22m

$627

Flights are sorted by cheapest first

Deals found on 6/12

What is the cheapest day to fly from Portland, Maine to Ontario?

Use this chart to determine the cheapest time to fly round-trip from Portland to Ontario. Price data was last updated on June 9, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their Portland, Maine to Ontario flight should consider departing on Wednesday mornings when fares are most often at their lowest. Friday mornings flights should be avoided if possible as fares are typically the most expensive at this time.
Search Deals

Best time to book a flight from Portland to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Portland with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Temperature and rainfall in Ontario by month

Plan your trip to Ontario by taking into account the average temperature and rainfall totals by month.

LAX

Temperature

57.2 - 73.4 °F

If weather is an important factor for your trip to Ontario, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 78.8 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 53.6 F).

Reviews of airlines servicing Ontario

Get insights into the airlines that provide service to Ontario. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Ontario. Reviews last updated June 13, 2024.
To help decide which airline to fly from Portland to Ontario, see what other customers have to say about American Airlines, United Airlines and Delta. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.1
Very good
9,272 reviews

Comfort

7.9

Overall

8.1

Boarding

8.2

Food

7.3

Entertainment

7.3

Crew

8.6

Reviews

1 / 10

Crew and airport staff were excellent. They accommodated my needs and were super professional and kind.

Alaska Airlines
8.1
Very good
9,272 reviews
Alaska Airlines
8.1
Very good
9,272 reviews

Comfort

7.9

Overall

8.1

Boarding

8.2

Food

7.3

Entertainment

7.3

Crew

8.6

Reviews

1 / 10

Crew and airport staff were excellent. They accommodated my needs and were super professional and kind.

Delta
8.0
Very good
10,000 reviews
Alaska Airlines
8.1
Very good
9,272 reviews

Comfort

7.9

Overall

8.1

Boarding

8.2

Food

7.3

Entertainment

7.3

Crew

8.6

Reviews

1 / 10

Crew and airport staff were excellent. They accommodated my needs and were super professional and kind.

JetBlue
7.6
Good
4,260 reviews
Alaska Airlines
8.1
Very good
9,272 reviews

Comfort

7.9

Overall

8.1

Boarding

8.2

Food

7.3

Entertainment

7.3

Crew

8.6

Reviews

1 / 10

Crew and airport staff were excellent. They accommodated my needs and were super professional and kind.

United Airlines
7.4
Good
10,000 reviews
Alaska Airlines
8.1
Very good
9,272 reviews

Comfort

7.9

Overall

8.1

Boarding

8.2

Food

7.3

Entertainment

7.3

Crew

8.6

Reviews

1 / 10

Crew and airport staff were excellent. They accommodated my needs and were super professional and kind.

American Airlines
7.3
Good
10,000 reviews
Alaska Airlines
8.1
Very good
9,272 reviews

Comfort

7.9

Overall

8.1

Boarding

8.2

Food

7.3

Entertainment

7.3

Crew

8.6

Reviews

1 / 10

Crew and airport staff were excellent. They accommodated my needs and were super professional and kind.

Related info for your journey

Find useful and relevant information for your journey from Portland to Ontario. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • Can I find flights from Portland, Maine to Ontario for under $300 on Cheapflights?

    Yes, there are multiple flights from Portland, Maine to Ontario for under $300. The cheapest flight booked recently is on JetBlue for just $248, but on average you can expect to pay $457.

  • Are there last-minute flights available from Portland, Maine to Ontario for under $800?

    There are currently 6+ open flights from Portland, Maine to Ontario within the next 7 days for less than $800.

  • What are the cheapest airlines flying from Portland, Maine to Ontario round-trip?

    JetBlue, at $248, was found to be the cheapest airline from Portland, Maine to Ontario.Alternate airlines to your destination round-trip include American Airlines and United Airlines. Users have found that JetBlue is 63% cheaper than the other options available to this destination.

  • What are the cheapest airlines to fly from Portland, Maine to Ontario one-way?

    The cheapest airlines for a one-way flight from Portland, Maine to Ontario are American Airlines ($109), JetBlue ($130), and United Airlines ($202).

  • What does PWM to ONT mean?

    Portland Airport is PWM and Ontario Airport is ONT. These codes are created by the International Air Transport Association (IATA) and airlines use them to identify the departing and arrival airports in the flight routes they service.

  • Can I find deals for flights from Portland to Ontario that include extra baggage allowance?

    The amount of baggage you can bring on your Portland to Ontario flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Portland to Ontario with specific airlines?

    Yes, Cheapflights allows you to browse and filter Portland to Ontario flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • Can I find deals for flights from Portland to Ontario that include hotel bookings?

    Yes. In addition to deals on Portland to Ontario flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Portland to Ontario?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Portland to Ontario.

  • Can I find deals for business class flights from Portland to Ontario?

    Yes. Cheapflights offers flight deals from Portland to Ontario by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • Can I find deals for flights from Portland to Ontario that allow pets onboard?

    Many airlines flying from Portland to Ontario offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Portland to Ontario?

    Yes, you can often find last-minute deals on Portland to Ontario flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the Portland, Maine to Ontario flight deals updated?

    The Portland, Maine to Ontario flight deals you see on this page were last updated on 6/13.

  • What is the cheapest month to book a flight from Portland, Maine to Ontario?

    Currently, October is the cheapest month in which you can book a flight from Portland, Maine to Ontario (average of $238). Flying from Portland, Maine to Ontario in July is currently the most expensive (average of $318). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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Top 2 airlines flying from Portland to Ontario

Discover the top 2 airlines that operate flights from Portland to Ontario. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 3,214,720 searches. Data last updated June 13, 2024.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$279Average$606FlexibilityNo cancel feeOn-time71%
DeltaCheapest$351Average$761FlexibilityNo cancel feeOn-timeN/A
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Portland, Maine to Porto flights

Search flights from Portland to Ontario by cabin class

Find flights from Portland to Ontario, based on your preferred cabin class, be it economy, premium economy, business, or first class.
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