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Allentown

$195+ 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 12/24. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — ABE
Nov 28 — Dec 51
Fri 11/28
Fri 12/5
1 adult, Economy
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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 October 29, 2025.

This Delta deal was found by Cheapflights users on 10/27. 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.
Tue 11/1812:16 pmONT - ABE
1 stop6h 56mDelta
Sun 11/236:00 pmABE - ONT
1 stop8h 04mDelta
Deal found 10/27$339
This Delta deal was found by Cheapflights users on 10/28. 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.
Fri 11/1412:16 pmONT - ABE
1 stop6h 56mDelta
Sun 11/166:00 pmABE - ONT
1 stop8h 04mDelta
Deal found 10/28$389
This Delta deal was found by Cheapflights users on 10/29. 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.
Wed 11/197:05 amONT - ABE
1 stop7h 14mDelta
Wed 12/35:23 pmABE - ONT
1 stop8h 41mDelta
Deal found 10/29$434
This American Airlines deal was found by Cheapflights users on 10/27. 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 11/126:11 amONT - ABE
2 stops13h 41mAmerican Airlines
Wed 11/191:46 pmABE - ONT
1 stop8h 55mAmerican Airlines
Deal found 10/27$457
This Delta deal was found by Cheapflights users on 10/27. 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.
Wed 11/127:05 amONT - ABE
1 stop7h 14mDelta
Wed 11/196:00 pmABE - ONT
1 stop8h 04mDelta
Deal found 10/27$469
This Delta deal was found by Cheapflights users on 10/29. 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.
Mon 11/1712:16 pmONT - ABE
1 stop6h 56mDelta
Wed 12/35:23 pmABE - ONT
1 stop8h 41mDelta
Deal found 10/29$524
This Delta deal was found by Cheapflights users on 10/27. 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 12/2511:15 amONT - ABE
1 stop8h 31mDelta
Thu 1/12:00 pmABE - ONT
1 stop8h 50mDelta
Deal found 10/27$528
This United Airlines deal was found by Cheapflights users on 10/27. 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.
Tue 11/186:38 pmONT - ABE
2 stops14h 10mUnited Airlines
Thu 11/205:22 pmABE - ONT
1 stop8h 09mUnited Airlines
Deal found 10/27$537
This United Airlines deal was found by Cheapflights users on 10/28. 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.
Thu 12/1811:59 pmONT - ABE
1 stop13h 31mUnited Airlines
Sun 12/215:07 pmABE - ONT
1 stop8h 18mUnited Airlines
Deal found 10/28$586

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 October 29, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$339
(Delta)

One-way from

$195
(American Airlines)

Popular in

March

Cheapest in

January

Average price

$406
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
Search Deals
One-way flight from Ontario to Allentown-Bethlehem
Search Deals
Highest demand for flights based on searches. 2% potential increase in price ($10 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($16 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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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 October 29, 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

Wed 2/18

1:00 pm-10:52 pm

1 stop6h 52m

Allentown-Bethlehem

Sat 2/21

1:00 pm-9:14 pm

1 stop11h 14m

$369

OntarioAllentown

ONT - ABE

ONTABE

Ontario

Tue 11/18

12:16 pm-10:12 pm

1 stop6h 56m

Allentown-Bethlehem

Wed 12/3

5:23 pm-11:04 pm

1 stop8h 41m

$389

OntarioAllentown

ONT - ABE

ONTABE

Ontario

Fri 11/14

12:16 pm-10:12 pm

1 stop6h 56m

Allentown-Bethlehem

Sun 11/16

6:00 pm-11:04 pm

1 stop8h 04m

$389

OntarioAllentown

ONT - ABE

ONTABE

Ontario

Wed 11/19

7:05 am-5:19 pm

1 stop7h 14m

Allentown-Bethlehem

Wed 12/3

5:23 pm-11:04 pm

1 stop8h 41m

$434

OntarioAllentown

ONT - ABE

ONTABE

Ontario

Wed 11/12

6:11 am-10:52 pm

2 stops13h 41m

Allentown-Bethlehem

Wed 11/19

1:46 pm-7:41 pm

1 stop8h 55m

$457

OntarioAllentown

ONT - ABE

ONTABE

Ontario

Tue 11/18

6:00 am-10:12 pm

2 stops13h 12m

Allentown-Bethlehem

Sun 11/23

6:00 pm-11:04 pm

1 stop8h 04m

$463

OntarioAllentown

ONT - ABE

ONTABE

Ontario

Wed 11/12

7:05 am-5:19 pm

1 stop7h 14m

Allentown-Bethlehem

Wed 11/19

6:00 pm-11:04 pm

1 stop8h 04m

$469

OntarioAllentown

ONT - ABE

ONTABE

Ontario

Wed 2/18

6:37 pm-9:58 am

2 stops12h 21m

Allentown-Bethlehem

Sat 2/21

6:33 am-5:41 pm

2 stops14h 08m

$489

OntarioAllentown

ONT - ABE

ONTABE

Ontario

Thu 12/25

11:15 am-10:46 pm

1 stop8h 31m

$219

OntarioAllentown

ONT - ABE

ONTABE

Ontario

Wed 12/3

12:12 pm-10:11 pm

1 stop6h 59m

$219

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/27

Showing 1-10 of 14 results
1
2

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 October.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star

*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 eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Ontario-Allentown flight deals on Cheapflights vs. eDreams >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, June is the cheapest month in which you can book a flight from Ontario to Allentown (average of $78). Flying from Ontario to Allentown in July is currently the most expensive (average of $164). 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 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 October 29, 2025.
Read through reviews of airlines operating flights from Ontario to Allentown, such as Delta. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
7,992 reviews

Boarding

8.2

Crew

8.5

Overall

7.9

Food

7.3

Entertainment

7.9

Comfort

7.9

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
7.9
Good
7,992 reviews
Delta
7.9
Good
7,992 reviews

Boarding

8.2

Crew

8.5

Overall

7.9

Food

7.3

Entertainment

7.9

Comfort

7.9

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.

  • How long is the flight from Ontario to Allentown?

    A quick flight from Ontario to Allentown can take about 6h 52m. Delta provides one of the quickest options available for as low as $369. The distance from Ontario to Allentown is about 2335 mi.

  • What is the cheapest airline to fly 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 $373 on this airline.

  • 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, June is the cheapest month in which you can book a flight from Ontario to Allentown (average of $78). Flying from Ontario to Allentown in July is currently the most expensive (average of $164). 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 Ontario to Allentown

Discover the top airline 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 October 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$373Average$468FlexibilityNo cancel feeOn-timeN/A

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