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

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

What airlines fly to Allentown?

American Airlines, United Airlines and Alaska Airlines are the top three most popular airlines that fly to Allentown from San Diego according to our data. American Airlines is the first choice among our users, with 44% of people opting to fly with this airline when traveling to Allentown. Keep in mind that there are 9 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 San Diego Airport to Allentown-Bethlehem Airport?

Prices for flights from San Diego Airport to Allentown-Bethlehem Airport refresh daily.

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

The number of operators available for flights from San Diego Airport to Allentown-Bethlehem Airport is 2 as of January 2026.

How old do you have to be to fly from San Diego 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 San Diego Airport to Allentown-Bethlehem Airport.

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

The necessary travel and health documents for your Allentown-Bethlehem Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$229 Cheap Flights from San Diego to Allentown in 2026

Q: What is the typical price of a round-trip flight between San Diego and Allentown?

Prices are currently low for flights on this route. Typical prices usually range from $478 to $692. The lowest price recently found on this route was $400.

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Find the cheapest flights from San Diego to Allentown

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

7:52 pm - 10:41 am

SAN

ABE

11h 49m

2 stops

11:30 am - 7:54 pm

ABE

SAN

11h 24m

2 stops

$400United Airlines

Wed, Feb 4 - Sun, Feb 8

6:15 am - 10:26 pm

SAN

ABE

13h 11m

2 stops

1:02 pm - 8:36 pm

ABE

SAN

10h 34m

1 stop

$478American Airlines

Wed, Feb 4 - Sun, Feb 8

6:15 am - 10:26 pm

SAN

ABE

13h 11m

2 stops

1:02 pm - 8:36 pm

ABE

SAN

10h 34m

1 stop

$567American Airlines

Thu, Feb 5 - Mon, Feb 9

6:15 am - 10:26 pm

SAN

ABE

13h 11m

2 stops

1:02 pm - 10:26 pm

ABE

SAN

12h 24m

2 stops

$573American Airlines

Thu, Feb 5 - Mon, Feb 9

11:08 am - 10:50 pm

SAN

ABE

8h 42m

1 stop

2:00 pm - 8:37 pm

ABE

SAN

9h 37m

1 stop

$657Delta

Wed, Feb 4 - Sun, Feb 8

6:15 am - 9:05 pm

SAN

ABE

11h 50m

3 stops

11:30 am - 7:54 pm

ABE

SAN

11h 24m

2 stops

$802United Airlines

Wed, Feb 4 - Sun, Feb 8

7:00 am - 10:41 am

SAN

ABE

24h 41m

1 stop

4:57 pm - 9:40 am

ABE

SAN

19h 43m

1 stop

$847United Airlines

Thu, Feb 5 - Mon, Feb 9

United Airlines flights from San Diego to Allentown

Our best United Airlines deals on San Diego to Allentown flight tickets

United Airlines

Feb 4

SAN7:52 pmSan Diego

11h 49m

2 stops

ABE10:41 amAllentown-Bethlehem

Feb 8

ABE11:30 amAllentown-Bethlehem

11h 24m

2 stops

SAN7:54 pmSan Diego

$400

United Airlines

Jan 28

SAN6:00 pmSan Diego

13h 41m

2 stops

ABE10:41 amAllentown-Bethlehem

Feb 1

ABE11:30 amAllentown-Bethlehem

11h 24m

2 stops

SAN7:54 pmSan Diego

$601

United Airlines

Feb 4

SAN6:15 amSan Diego

11h 50m

3 stops

ABE9:05 pmAllentown-Bethlehem

Feb 8

ABE11:30 amAllentown-Bethlehem

11h 24m

2 stops

SAN7:54 pmSan Diego

$802

American Airlines flights from San Diego to Allentown

Our best American Airlines deals on San Diego to Allentown flight tickets

American Airlines

Feb 4

SAN6:15 amSan Diego

13h 11m

2 stops

ABE10:26 pmAllentown-Bethlehem

Feb 8

ABE1:02 pmAllentown-Bethlehem

10h 34m

1 stop

SAN8:36 pmSan Diego

$478

American Airlines

Feb 5

SAN6:15 amSan Diego

13h 11m

2 stops

ABE10:26 pmAllentown-Bethlehem

Feb 9

ABE1:02 pmAllentown-Bethlehem

10h 34m

1 stop

SAN8:36 pmSan Diego

$567

American Airlines

Feb 5

SAN6:15 amSan Diego

13h 11m

2 stops

ABE10:26 pmAllentown-Bethlehem

Feb 9

ABE1:02 pmAllentown-Bethlehem

12h 24m

2 stops

SAN10:26 pmSan Diego

$573

Fly from

Fly to

Route

Depart

Return

Price

San DiegoAllentown

SAN - ABE

SANABE

San Diego

Wed 2/4

7:52 pm-10:41 am

2 stops11h 49m

Allentown-Bethlehem

Sun 2/8

11:30 am-7:54 pm

2 stops11h 24m

$400

San DiegoAllentown

SAN - ABE

SANABE

San Diego

Wed 2/4

6:15 am-10:26 pm

2 stops13h 11m

Allentown-Bethlehem

Sun 2/8

1:02 pm-8:36 pm

1 stop10h 34m

$478

San DiegoAllentown

SAN - ABE

SANABE

San Diego

Thu 2/5

6:15 am-10:26 pm

2 stops13h 11m

Allentown-Bethlehem

Mon 2/9

1:02 pm-8:36 pm

1 stop10h 34m

$567

San DiegoAllentown

SAN - ABE

SANABE

San Diego

Thu 2/5

6:15 am-10:26 pm

2 stops13h 11m

Allentown-Bethlehem

Mon 2/9

1:02 pm-10:26 pm

2 stops12h 24m

$573

San DiegoAllentown

SAN - ABE

SANABE

San Diego

Wed 2/4

11:08 am-10:50 pm

1 stop8h 42m

Allentown-Bethlehem

Sun 2/8

2:00 pm-8:37 pm

1 stop9h 37m

$657

San DiegoAllentown

SAN - ABE

SANABE

San Diego

Wed 2/4

6:15 am-9:05 pm

3 stops11h 50m

Allentown-Bethlehem

Sun 2/8

11:30 am-7:54 pm

2 stops11h 24m

$802

San DiegoAllentown

SAN - ABE

SANABE

San Diego

Thu 2/5

7:00 am-10:41 am

1 stop24h 41m

Allentown-Bethlehem

Mon 2/9

4:57 pm-9:40 am

1 stop19h 43m

$847

San DiegoAllentown

SAN - ABE

SANABE

San Diego

Tue 3/31

6:15 am-5:17 pm

1 stop8h 02m

$229

San DiegoAllentown

SAN - ABE

SANABE

San Diego

Wed 4/1

6:15 am-5:17 pm

1 stop8h 02m

$253

San DiegoAllentown

SAN - ABE

SANABE

San Diego

Thu 2/19

6:30 am-5:12 pm

1 stop7h 42m

$259

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 17 resultsSorted by cheapest first

How to get the cheapest flight ticket from San Diego 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 typical price of a round-trip flight between San Diego and Allentown?

Can stopping save me money on San Diego to Allentown flights?

You could potentially save up to 23% on your flight if you consider stops on a San Diego to Allentown flight.

How have San Diego to Allentown flight prices changed over time?

When to book flights from San Diego to Allentown

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

Estimated round-trip price

Cheap San Diego to Allentown (SAN to ABE) flight deals and tips

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

Fastest flight time	10h 24m
Direct flights	None

The fastest flight from San Diego to Allentown takes 10h 24m

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

Search flight deals

How far is San Diego to Allentown-Bethlehem by plane?
Allentown-Bethlehem is 2349.4 mi away from San Diego. A reasonable flight in good conditions will take 10h 24m.
When did momondo last update prices for flights from San Diego Airport to Allentown-Bethlehem Airport?
Prices for flights from San Diego Airport to Allentown-Bethlehem Airport refresh daily.
How many operators does momondo search for flights from San Diego Airport to Allentown-Bethlehem Airport?
The number of operators available for flights from San Diego Airport to Allentown-Bethlehem Airport is 2 as of January 2026.
How old do you have to be to fly from San Diego 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 San Diego Airport to Allentown-Bethlehem Airport.
What documentation or ID do you need to fly to Allentown-Bethlehem Airport?
The necessary travel and health documents for your Allentown-Bethlehem Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular airline from San Diego to Allentown?
Based on momondo bookings for flights between San Diego and Allentown, the leading airline is American Airlines, making up 56% of the total bookings. Other popular airlines include Delta with 44%.

Best airlines flying from San Diego to Allentown

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

Airline	Rating	Free Cancellation	Price
Delta	PriceFrom $308	Free Cancellation	Rating 7.9 8,089 reviews		Search Delta flights
American Airlines	PriceFrom $310	Free Cancellation	Rating 7.2 11,174 reviews		Search American Airlines flights

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Allentown from San Diego.

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

Yes. momondo enables you to select and highlight flights to Allentown from San Diego with this policy.

How can momondo help me find flights from San Diego to Allentown?

Once all potential San Diego to Allentown flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

Yes momondo offers price alerts on flights to Allentown from San Diego. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.