What is the cheapest airline that flies from Ontario to Allentown-Bethlehem?

Delta and United Airlines are the most popular carriers operating from Ontario to Allentown-Bethlehem

What airlines fly to Allentown?

United Airlines, American Airlines and JetBlue are the top three most popular airlines that fly to Allentown from Ontario according to our data. United Airlines is the first choice among our users, with 48% of people opting to fly with this airline when traveling to Allentown. Keep in mind that there are 8 different airlines that fly to Allentown on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Ontario Airport to Allentown-Bethlehem Airport?

Prices for flights from Ontario Airport to Allentown-Bethlehem Airport are refreshed on a daily basis.

How many operators does momondo search for flights from Ontario Airport to Allentown-Bethlehem Airport?

The number of operators available for flights from Ontario Airport to Allentown-Bethlehem Airport is 1 as of November 2026.

How old do you have to be to fly from Ontario Airport to Allentown-Bethlehem Airport?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ontario Airport to Allentown-Bethlehem Airport.

What documentation or ID do you need to fly to Allentown-Bethlehem Airport?

The required travel and health documents for your Allentown-Bethlehem Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Allentown-Bethlehem Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$185 Cheap Flights from Ontario to Allentown in 2026/27

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Find the cheapest flights from Ontario to Allentown

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Cheap round-trip flights

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6:40 pm - 9:28 amONT Ontario-ABE Allentown-Bethlehem

11h 48m2 stops San Francisco Chicago O'Hare Intl

6:00 am - 3:35 pmABE Allentown-Bethlehem-ONT Ontario

12h 35m2 stops Chicago O'Hare Intl San Francisco

$509United Airlines

Thu, Dec 3 - Tue, Dec 8

6:40 pm - 9:28 amONT Ontario-ABE Allentown-Bethlehem

11h 48m2 stops San Francisco Chicago O'Hare Intl

6:00 am - 5:36 pmABE Allentown-Bethlehem-ONT Ontario

14h 36m2 stops Chicago O'Hare Intl San Francisco

$524United Airlines

Wed, Dec 2 - Sun, Dec 6

7:00 am - 4:45 pmONT Ontario-ABE Allentown-Bethlehem

6h 45m1 stop Chicago O'Hare Intl

10:10 am - 9:00 pmABE Allentown-Bethlehem-ONT Ontario

13h 50m2 stops Chicago O'Hare Intl Denver Intl

$569United Airlines

Sat, Jan 30 - Wed, Feb 3

5:00 am - 8:51 pmONT Ontario-ABE Allentown-Bethlehem

12h 51m2 stops Denver Intl Chicago O'Hare Intl

10:10 am - 9:00 pmABE Allentown-Bethlehem-ONT Ontario

13h 50m2 stops Chicago O'Hare Intl Denver Intl

$574United Airlines

Wed, Jan 27 - Wed, Feb 10

7:00 am - 4:57 pmONT Ontario-ABE Allentown-Bethlehem

6h 57m1 stop Chicago O'Hare Intl

6:00 am - 12:34 pmABE Allentown-Bethlehem-ONT Ontario

9h 34m2 stops Chicago O'Hare Intl Denver Intl

$579United Airlines

Tue, Dec 8 - Sat, Dec 12

6:00 am - 9:22 pmONT Ontario-ABE Allentown-Bethlehem

12h 22m2 stops San Francisco Chicago O'Hare Intl

6:00 am - 12:34 pmABE Allentown-Bethlehem-ONT Ontario

9h 34m2 stops Chicago O'Hare Intl Denver Intl

$584United Airlines

Tue, Dec 8 - Sat, Dec 12

7:00 am - 4:57 pmONT Ontario-ABE Allentown-Bethlehem

6h 57m1 stop Chicago O'Hare Intl

6:00 am - 12:34 pmABE Allentown-Bethlehem-ONT Ontario

9h 34m2 stops Chicago O'Hare Intl Denver Intl

$584United Airlines

Tue, Dec 8 - Sat, Dec 12

6:00 am - 9:22 pmONT Ontario-ABE Allentown-Bethlehem

12h 22m2 stops San Francisco Chicago O'Hare Intl

6:00 am - 12:34 pmABE Allentown-Bethlehem-ONT Ontario

9h 34m2 stops Chicago O'Hare Intl Denver Intl

$590United Airlines

Tue, Dec 8 - Sat, Dec 12

11:14 am - 9:32 pmONT Ontario-ABE Allentown-Bethlehem

7h 18m1 stop Atlanta Hartsfield-Jackson

6:01 pm - 11:40 pmABE Allentown-Bethlehem-ONT Ontario

8h 39m1 stop Atlanta Hartsfield-Jackson

$655Delta

Fri, Dec 25 - Tue, Dec 29

11:10 pm - 12:06 pmONT Ontario-ABE Allentown-Bethlehem

9h 56m1 stop Atlanta Hartsfield-Jackson

12:50 pm - 7:55 pmABE Allentown-Bethlehem-ONT Ontario

10h 05m1 stop Atlanta Hartsfield-Jackson

$704Delta

Mon, Nov 30 - Sat, Dec 5

Cheap last minute flights

Enter your travel dates to find the best prices.

10:30 pm - 11:13 amONT Ontario-ABE Allentown-Bethlehem

9h 43m1 stop Charlotte Douglas

5:37 am - 1:32 pmABE Allentown-Bethlehem-ONT Ontario

10h 55m2 stops Chicago O'Hare Intl Dallas/Fort Worth

$594American Airlines

Sat, Nov 7 - Tue, Nov 10

9:29 am - 11:24 pmONT Ontario-ABE Allentown-Bethlehem

10h 55m2 stops Phoenix Sky Harbor Intl Charlotte Douglas

5:37 am - 1:32 pmABE Allentown-Bethlehem-ONT Ontario

10h 55m2 stops Chicago O'Hare Intl Dallas/Fort Worth

$599American Airlines

Sat, Nov 7 - Tue, Nov 10

10:30 pm - 11:13 amONT Ontario-ABE Allentown-Bethlehem

9h 43m1 stop Charlotte Douglas

7:36 am - 4:19 pmABE Allentown-Bethlehem-ONT Ontario

11h 43m2 stops Charlotte Douglas Phoenix Sky Harbor Intl

$724American Airlines

Sat, Nov 7 - Tue, Nov 10

10:30 pm - 11:13 amONT Ontario-ABE Allentown-Bethlehem

9h 43m1 stop Charlotte Douglas

5:37 am - 1:32 pmABE Allentown-Bethlehem-ONT Ontario

10h 55m2 stops Chicago O'Hare Intl Dallas/Fort Worth

$724American Airlines

Sat, Nov 7 - Tue, Nov 10

7:00 am - 11:24 pmONT Ontario-ABE Allentown-Bethlehem

13h 24m2 stops Dallas/Fort Worth Charlotte Douglas

7:36 am - 4:19 pmABE Allentown-Bethlehem-ONT Ontario

11h 43m2 stops Charlotte Douglas Phoenix Sky Harbor Intl

$730American Airlines

Sat, Nov 7 - Tue, Nov 10

6:00 am - 9:02 pmONT Ontario-ABE Allentown-Bethlehem

12h 02m2 stops San Francisco Chicago O'Hare Intl

6:15 am - 6:01 pmABE Allentown-Bethlehem-ONT Ontario

14h 46m2 stops Chicago O'Hare Intl San Francisco

$858United Airlines

Sat, Nov 7 - Tue, Nov 10

1:32 pm - 4:56 pmONT Ontario-ABE Allentown-Bethlehem

24h 24m2 stops Denver Intl Chicago O'Hare Intl

6:15 am - 3:33 pmABE Allentown-Bethlehem-ONT Ontario

12h 18m2 stops Chicago O'Hare Intl San Francisco

$941United Airlines

Fri, Nov 6 - Tue, Nov 10

5:00 am - 9:02 pmONT Ontario-ABE Allentown-Bethlehem

13h 02m2 stops Denver Intl Chicago O'Hare Intl

6:15 am - 6:01 pmABE Allentown-Bethlehem-ONT Ontario

14h 46m2 stops Chicago O'Hare Intl San Francisco

$959United Airlines

Tue, Nov 10 - Wed, Nov 11

12:16 pm - 10:19 pmONT Ontario-ABE Allentown-Bethlehem

7h 03m1 stop Atlanta Hartsfield-Jackson

12:45 pm - 8:54 pmABE Allentown-Bethlehem-ONT Ontario

11h 09m1 stop Atlanta Hartsfield-Jackson

$1,023Delta

Sat, Nov 7 - Tue, Nov 10

12:16 pm - 10:19 pmONT Ontario-ABE Allentown-Bethlehem

7h 03m1 stop Atlanta Hartsfield-Jackson

12:47 pm - 9:57 pmABE Allentown-Bethlehem-ONT Ontario

12h 10m1 stop Atlanta Hartsfield-Jackson

$1,068Delta

Fri, Nov 6 - Mon, Nov 9

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American Airlines flights from Ontario to Allentown

Our best American Airlines deals on Ontario to Allentown flight tickets

American Airlines

Nov 7

ONT10:30 pmOntario

9h 43m

1 stop

ABE11:13 amAllentown-Bethlehem

Nov 10

ABE5:37 amAllentown-Bethlehem

10h 55m

2 stops

ONT1:32 pmOntario

$594

American Airlines

Nov 7

ONT9:29 amOntario

10h 55m

2 stops

ABE11:24 pmAllentown-Bethlehem

Nov 10

ABE5:37 amAllentown-Bethlehem

10h 55m

2 stops

ONT1:32 pmOntario

$599

American Airlines

Nov 18

ONT9:50 amOntario

10h 09m

2 stops

ABE10:59 pmAllentown-Bethlehem

Nov 22

ABE5:14 pmAllentown-Bethlehem

9h 06m

1 stop

ONT11:20 pmOntario

$628

Delta flights from Ontario to Allentown

Our best Delta deals on Ontario to Allentown flight tickets

Delta

Dec 25

ONT11:14 amOntario

7h 18m

1 stop

ABE9:32 pmAllentown-Bethlehem

Dec 29

ABE6:01 pmAllentown-Bethlehem

8h 39m

1 stop

ONT11:40 pmOntario

$655

Delta

Nov 30

ONT11:10 pmOntario

9h 56m

1 stop

ABE12:06 pmAllentown-Bethlehem

Dec 5

ABE12:50 pmAllentown-Bethlehem

10h 05m

1 stop

ONT7:55 pmOntario

$704

Delta

Feb 9

ONT7:05 amOntario

7h 18m

1 stop

ABE5:23 pmAllentown-Bethlehem

Feb 23

ABE6:25 amAllentown-Bethlehem

8h 29m

1 stop

ONT11:54 amOntario

$709

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioAllentown

ONT Ontario - ABE Allentown-Bethlehem

ONTABE

Ontario

Thu 12/3

6:40 pm-9:28 am

2 stops11h 48m

Allentown-Bethlehem

Tue 12/8

6:00 am-3:35 pm

2 stops12h 35m

$509

OntarioAllentown

ONT Ontario - ABE Allentown-Bethlehem

ONTABE

Ontario

Wed 12/2

6:40 pm-9:28 am

2 stops11h 48m

Allentown-Bethlehem

Sun 12/6

6:00 am-5:36 pm

2 stops14h 36m

$524

OntarioAllentown

ONT Ontario - ABE Allentown-Bethlehem

ONTABE

Ontario

Sat 1/30

7:00 am-4:45 pm

1 stop6h 45m

Allentown-Bethlehem

Wed 2/3

10:10 am-9:00 pm

2 stops13h 50m

$569

OntarioAllentown

ONT Ontario - ABE Allentown-Bethlehem

ONTABE

Ontario

Wed 1/27

5:00 am-8:51 pm

2 stops12h 51m

Allentown-Bethlehem

Wed 2/10

10:10 am-9:00 pm

2 stops13h 50m

$574

OntarioAllentown

ONT Ontario - ABE Allentown-Bethlehem

ONTABE

Ontario

Tue 12/8

7:00 am-4:57 pm

1 stop6h 57m

Allentown-Bethlehem

Sat 12/12

6:00 am-12:34 pm

2 stops9h 34m

$579

OntarioAllentown

ONT Ontario - ABE Allentown-Bethlehem

ONTABE

Ontario

Tue 12/8

6:00 am-9:22 pm

2 stops12h 22m

Allentown-Bethlehem

Sat 12/12

6:00 am-12:34 pm

2 stops9h 34m

$584

OntarioAllentown

ONT Ontario - ABE Allentown-Bethlehem

ONTABE

Ontario

Tue 12/8

7:00 am-4:57 pm

1 stop6h 57m

Allentown-Bethlehem

Sat 12/12

6:00 am-12:34 pm

2 stops9h 34m

$584

OntarioAllentown

ONT Ontario - ABE Allentown-Bethlehem

ONTABE

Ontario

Tue 12/8

6:00 am-9:22 pm

2 stops12h 22m

Allentown-Bethlehem

Sat 12/12

6:00 am-12:34 pm

2 stops9h 34m

$590

Quickest round-trip

OntarioAllentown

ONT Ontario - ABE Allentown-Bethlehem

ONTABE

Ontario

Fri 12/25

11:14 am-9:32 pm

1 stop7h 18m

Allentown-Bethlehem

Tue 12/29

6:01 pm-11:40 pm

1 stop8h 39m

$655

OntarioAllentown

ONT Ontario - ABE Allentown-Bethlehem

ONTABE

Ontario

Mon 11/30

11:10 pm-12:06 pm

1 stop9h 56m

Allentown-Bethlehem

Sat 12/5

12:50 pm-7:55 pm

1 stop10h 05m

$704

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Ontario to Allentown

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

Prices

Airlines

What is the cheapest month to fly to Allentown?

The month of May is, on average, the cheapest month to fly to Allentown from Ontario, with most prices found around $0. If you aren’t able to travel to Allentown during the month of May, then flying in April is also cheap. Prices for this month can be found on momondo for an average of $336.

Can stopping save me money on Ontario to Allentown flights?

You could potentially save up to 67% on your flight if you consider stops on a Ontario to Allentown flight.

When to book flights from Ontario to Allentown

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

Estimated round-trip price

Cheap Ontario to Allentown (ONT to ABE) flight deals and tips

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

Best Price Found	$185
Fastest flight time	6h 57m
Direct flights	None

The best one-way flight to Allentown from Ontario in the past 72 hours is $185. The best round-trip flight deal from Ontario to Allentown found on momondo in the last 72 hours is $509.

The fastest flight from Ontario to Allentown takes 6h 57m

There are no direct flights from Ontario to Allentown. There are no popular flight routes from Ontario to Allentown.

Search flight deals

Frequently asked questions about flying from Ontario to Allentown

How far is Ontario to Allentown-Bethlehem by plane?
Ontario and Allentown-Bethlehem are 2336.4 mi apart from one another. In terms of flight time, this usually takes a little over 6h 57m.
When did momondo last update prices for flights from Ontario Airport to Allentown-Bethlehem Airport?
Prices for flights from Ontario Airport to Allentown-Bethlehem Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Ontario Airport to Allentown-Bethlehem Airport?
The number of operators available for flights from Ontario Airport to Allentown-Bethlehem Airport is 1 as of November 2026.
How old do you have to be to fly from Ontario Airport to Allentown-Bethlehem Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ontario Airport to Allentown-Bethlehem Airport.
What documentation or ID do you need to fly to Allentown-Bethlehem Airport?
The required travel and health documents for your Allentown-Bethlehem Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Allentown-Bethlehem Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular airline from Ontario to Allentown?
momondo data reveals that the most frequently booked airline on the route from Ontario to Allentown is Delta, representing 100% of all bookings.

Best airlines flying from Ontario to Allentown

Compare and see reviews for airlines that fly from Ontario to Allentown with momondo

Airline	Rating	Free Cancellation	Price
Delta	PriceFrom $377	Free Cancellation	Rating 7.8 8,698 reviews		Search Delta flights

Lehighton

Why use momondo?

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

It is quick and easy to find Ontario to Allentown flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Allentown that suits you.

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

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

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

momondo helps you find the best flight between Ontario and Allentown by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

If you are simply researching potential flights to Allentown, momondo offers a useful price alert feature which will track prices for flights to Allentown from Ontario and alert you when they change.