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$159+ Cheap flights from Allentown to Ontario (ABE - ONT)

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 11/24. Fares are subject to change and may not be available on all flights or dates of travel.
ABE — ONT
Dec 13 — Dec 201
Sat 12/13
Sat 12/20
1 adult, Economy
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Cheap flight deals from Allentown to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from Allentown (ABE) 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 November 13, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$309
(Delta)

One-way from

$159
(Delta)

Popular in

June

Cheapest in

January

Average price

$591
Provider with most accurate pricing for Allentown-Bethlehem-Ontario flight deals.
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Provider most trusted by Cheapflights users for Allentown-Bethlehem-Ontario flights.
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From Allentown-Bethlehem to Ontario
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One-way flight from Allentown-Bethlehem to Ontario
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Highest demand for flights based on searches. 30% potential increase in price ($269 potential increase over avg. RT price).
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Cheapest flight prices on average. 11% potential price decrease ($62 potential savings vs. average RT price).
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Average for round-trip flights in November 2025
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Find flight deals from Allentown to Ontario

Cheapest flights from Allentown to Ontario
Explore the most affordable flight options available from Allentown to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 13, 2025.

This Delta deal was found by Cheapflights users on 11/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/206:04 pmABE - ONT
1 stop8h 19mDelta
Thu 12/2511:15 amONT - ABE
1 stop8h 31mDelta
Deal found 11/11$373
This American Airlines deal was found by Cheapflights users on 11/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/246:04 amABE - ONT
2 stops13h 03mAmerican Airlines
Wed 12/2411:59 pmONT - ABE
1 stop8h 21mAmerican Airlines
Deal found 11/12$482
This United Airlines deal was found by Cheapflights users on 11/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/101:00 pmABE - ONT
2 stops12h 49mUnited Airlines
Wed 12/175:05 amONT - ABE
2 stops13h 41mUnited Airlines
Deal found 11/11$503
This Delta deal was found by Cheapflights users on 11/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/156:10 amABE - ONT
1 stop7h 56mDelta
Tue 11/1812:16 pmONT - ABE
1 stop6h 56mDelta
Deal found 11/11$529
This American Airlines deal was found by Cheapflights users on 11/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/276:16 amABE - ONT
2 stops12h 08mAmerican Airlines
Mon 12/111:59 pmONT - ABE
2 stops12h 52mAmerican Airlines
Deal found 11/12$558
This Delta deal was found by Cheapflights users on 11/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/136:10 amABE - ONT
1 stop7h 56mDelta
Sat 11/1512:16 pmONT - ABE
1 stop6h 56mDelta
Deal found 11/10$569
This American Airlines deal was found by Cheapflights users on 11/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/42:01 pmABE - ONT
1 stop10h 06mAmerican Airlines
Sat 12/139:59 amONT - ABE
2 stops10h 07mAmerican Airlines
Deal found 11/12$603

Cheapflights Fare Finder

 
Customize your flight search to find flights from Allentown 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 2,558,603 searches. Data last updated November 13, 2025.
Use the filters below to find and compare flights from Allentown to Ontario that are best for you.

Fly from

Allentown

Fly to

Ontario

Route

Depart

Return

Price

AllentownOntario

ABE - ONT

ABEONT

Allentown-Bethlehem

Wed 4/15

1:00 pm-6:15 pm

1 stop8h 15m

Ontario

Wed 4/22

12:00 pm-10:56 pm

1 stop7h 56m

$309

AllentownOntario

ABE - ONT

ABEONT

Allentown-Bethlehem

Sat 12/20

6:04 pm-11:23 pm

1 stop8h 19m

Ontario

Thu 12/25

11:15 am-10:46 pm

1 stop8h 31m

$413

AllentownOntario

ABE - ONT

ABEONT

Allentown-Bethlehem

Fri 2/6

11:30 am-10:53 pm

2 stops14h 23m

Ontario

Sat 2/14

5:00 am-4:48 pm

2 stops8h 48m

$419

AllentownOntario

ABE - ONT

ABEONT

Allentown-Bethlehem

Wed 1/14

11:30 am-10:53 pm

2 stops14h 23m

Ontario

Tue 1/20

5:05 am-9:15 pm

2 stops13h 10m

$419

AllentownOntario

ABE - ONT

ABEONT

Allentown-Bethlehem

Thu 1/8

6:15 am-5:43 pm

2 stops14h 28m

Ontario

Sun 1/11

6:39 pm-10:41 am

2 stops13h 02m

$459

AllentownOntario

ABE - ONT

ABEONT

Allentown-Bethlehem

Wed 12/24

6:04 am-4:07 pm

2 stops13h 03m

Ontario

Wed 12/24

11:59 pm-11:20 am

1 stop8h 21m

$482

AllentownOntario

ABE - ONT

ABEONT

Allentown-Bethlehem

Wed 12/10

1:00 pm-10:49 pm

2 stops12h 49m

Ontario

Wed 12/17

5:05 am-9:46 pm

2 stops13h 41m

$503

AllentownOntario

ABE - ONT

ABEONT

Allentown-Bethlehem

Wed 4/15

6:30 am-2:49 pm

2 stops11h 19m

Ontario

Wed 4/22

10:32 am-12:15 am

2 stops10h 43m

$527

AllentownOntario

ABE - ONT

ABEONT

Allentown-Bethlehem

Mon 2/9

11:30 am-8:58 pm

2 stops12h 28m

Ontario

Mon 2/16

8:55 pm-9:58 am

2 stops10h 03m

$549

AllentownOntario

ABE - ONT

ABEONT

Allentown-Bethlehem

Mon 11/24

6:00 pm-11:04 pm

1 stop8h 04m

$159

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/11

Showing 1-10 of 18 results
1
2

Compare providers for flights from Allentown to Ontario

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Allentown to Ontario in November.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Allentown-Ontario flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Allentown-Ontario flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Allentown-Ontario flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Allentown-Ontario flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Allentown-Ontario flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Allentown to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Allentown 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.

Cheapflights Insights

Everything you need to know about your flight from Allentown to Ontario

What is the cheapest month to book a flight from Allentown to Ontario?

Currently, May is the cheapest month in which you can book a flight from Allentown to Ontario (average of $88). Flying from Allentown to Ontario in July is currently the most expensive (average of $141). 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.

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 November 13, 2025.
See what other customers who have flown with Delta from Allentown to Ontario have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,007 reviews

Comfort

7.9

Crew

8.5

Food

7.3

Boarding

8.1

Entertainment

7.9

Overall

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Delta
7.9
Good
8,007 reviews
Delta
7.9
Good
8,007 reviews

Comfort

7.9

Crew

8.5

Food

7.3

Boarding

8.1

Entertainment

7.9

Overall

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

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

  • How long is the flight from Allentown to Ontario?

    There are many flights that can get you from Allentown to Ontario in 8h 15m. Fly via Delta or United Airlines to get the fastest option. The distance between Allentown and Ontario is about 2335 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What is the cheapest airline to fly from Allentown to Ontario round-trip?

    Cheapflights users have booked flights from Allentown to Ontario round-trip from $338. Delta is 44% cheaper than the average price of flights available within the next 90 days to this destination.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Allentown 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.

  • What is the cheapest month to book a flight from Allentown to Ontario?

    Currently, May is the cheapest month in which you can book a flight from Allentown to Ontario (average of $88). Flying from Allentown to Ontario in July is currently the most expensive (average of $141). 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.

See more FAQs

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Top airline flying from Allentown to Ontario

Discover the top airline that operate flights from Allentown 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 2,558,603 searches. Data last updated November 13, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$338Average$598FlexibilityNo cancel feeOn-timeN/A

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