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$175+ Cheap flights from Ontario to Allentown (ONT - ABE)

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 8/31. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — ABE
may. 6 — may. 131
mar. 5/6
mar. 5/13
1 adult, Economy
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1. Tell us where you want to go

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Cheap flight deals from Ontario to Allentown

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Allentown (ABE). 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 mayo 1, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$489
(Delta)

One-way from

$175
(United Airlines)

Popular in

May

Cheapest in

October

Average price

$932
Provider with most accurate pricing for Ontario-Allentown-Bethlehem flight deals.
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Provider most trusted by Cheapflights users for Ontario-Allentown-Bethlehem flights.
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From Ontario to Allentown-Bethlehem
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One-way flight from Ontario to Allentown-Bethlehem
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Highest demand for flights based on searches. 22% potential increase in price ($151 potential increase over avg. RT price).
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Cheapest flight prices on average. 8% potential price decrease ($45 potential savings vs. average RT price).
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Average for round-trip flights in May 2025
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Find flight deals from Ontario to Allentown

Cheapest flights from Ontario to Allentown
Explore the most affordable flight options available from Ontario to Allentown. Find the lowest fares from popular airlines and budget airlines, with prices last updated on mayo 1, 2025.

This Delta deal was found by Cheapflights users on 4/30. 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.
vie. 5/97:05 amONT - ABE
1 stop7h 01mDelta
sáb. 5/106:00 amABE - ONT
1 stop8h 08mDelta
Deal found 4/30$479
This United Airlines deal was found by Cheapflights users on 4/30. 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.
vie. 5/307:00 amONT - ABE
1 stop11h 55mUnited Airlines
lun. 6/25:35 pmABE - ONT
1 stop7h 51mUnited Airlines
Deal found 4/30$637

Cheapflights Fare Finder

Customize your flight search to find flights from Ontario to Allentown 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 mayo 1, 2025.
Use the filters below to find and compare flights from Ontario to Allentown that are best for you.

Fly from

Ontario

Fly to

Allentown

Route

Depart

Return

Price

OntarioAllentown

ONT - ABE

ONTABE

Ontario

mié. 6/4

12:18 pm-10:55 pm

1 stop7h 37m

Allentown-Bethlehem

lun. 6/9

6:05 pm-10:25 pm

1 stop7h 20m

$489

OntarioAllentown

ONT - ABE

ONTABE

Ontario

vie. 5/30

7:00 am-9:55 pm

1 stop11h 55m

Allentown-Bethlehem

lun. 6/2

5:35 pm-10:26 pm

1 stop7h 51m

$637

OntarioAllentown

ONT - ABE

ONTABE

Ontario

dom. 8/31

7:00 am-4:53 pm

1 stop6h 53m

$175

OntarioAllentown

ONT - ABE

ONTABE

Ontario

dom. 8/31

8:15 am-10:35 pm

2 stops11h 20m

$255

OntarioAllentown

ONT - ABE

ONTABE

Ontario

sáb. 6/14

11:49 am-10:29 pm

1 stop7h 40m

$259

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/30

Compare providers for flights from Ontario to Allentown

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 Ontario to Allentown in May.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*2 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
ExpediaPrice Accuracy1 starTrust 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 Ontario-Allentown flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Ontario-Allentown flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Ontario-Allentown flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Ontario-Allentown 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 Ontario-Allentown 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 Ontario to Allentown

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

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

Currently, February is the cheapest month in which you can book a flight from Ontario to Allentown (average of $292). Flying from Ontario to Allentown in December is currently the most expensive (average of $395). 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.

Rainfall in Allentown by month

Plan your trip to Allentown by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Allentown ranges from 2.7 - 5.0 inches per month. July is typically the wettest month, when rainfall can reach 5.0 in. February is typically the driest time to visit Allentown when rainfall is around 2.7 in.

Temperature in Allentown by month

Plan your trip to Allentown by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Allentown, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 28.4 F).

Reviews of airlines servicing Allentown

Get insights into the airlines that provide service to Allentown. 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 Allentown. Reviews last updated mayo 1, 2025.
Delta
8.0
Very good
7,934 reviews

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Overall

8.0

Crew

8.5

Food

7.3

Reviews

1 / 20
10.0
Excellent

Michael,Sep 2023

SMF - ATL

Not sufficient leg room and three seats are very tigh.t on 737 in economy main cabin
Delta
8.0
Very good
7,934 reviews
Delta
8.0
Very good
7,934 reviews

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Overall

8.0

Crew

8.5

Food

7.3

Reviews

1 / 20
10.0
Excellent

Michael,Sep 2023

SMF - ATL

Not sufficient leg room and three seats are very tigh.t on 737 in economy main cabin
United Airlines
7.4
Good
8,696 reviews
Delta
8.0
Very good
7,934 reviews

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Overall

8.0

Crew

8.5

Food

7.3

Reviews

1 / 20
10.0
Excellent

Michael,Sep 2023

SMF - ATL

Not sufficient leg room and three seats are very tigh.t on 737 in economy main cabin
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,934 reviews

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Overall

8.0

Crew

8.5

Food

7.3

Reviews

1 / 20
10.0
Excellent

Michael,Sep 2023

SMF - ATL

Not sufficient leg room and three seats are very tigh.t on 737 in economy main cabin

Related info for your journey

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

  • What are the cheapest airlines flying from Ontario to Allentown round-trip?

    Our cheapest airline available from Ontario to Allentown is Delta. Our recent data shows that you can find tickets from as low as $489 on this airline. An additional option worth looking into is United Airlines, starting at $637. You may be able to fly from Ontario to Allentown for 8% less than the average price by searching for these airlines.

  • What are the cheapest airlines to fly from Ontario to Allentown one-way?

    To fly one-way, consider booking your trip with United Airlines, which is currently one of the cheapest options available, starting at $175. American Airlines flights start at $255 while deals on Delta start at $259 one-way.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Ontario to Allentown 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 Ontario to Allentown?

    Currently, February is the cheapest month in which you can book a flight from Ontario to Allentown (average of $292). Flying from Ontario to Allentown in December is currently the most expensive (average of $395). 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 Ontario to Allentown

Discover the top 2 airlines that operate flights from Ontario to Allentown. 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 mayo 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$258Average$556FlexibilityNo cancel feeOn-time71%
DeltaCheapest$295Average$468FlexibilityNo cancel feeOn-timeN/A

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