What airlines fly to Allentown?

United Airlines, American Airlines and Alaska Airlines are the top three most popular airlines that fly to Allentown from San Diego according to our data. United Airlines is the first choice among our users, with 47% 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.

Which layover airport has the shortest connection time from San Diego to Allentown?

Chicago (ORD) has the shortest average layover time for this route: 0h 53m.

Which airport is the most popular layover for flights between San Diego and Allentown?

Charlotte (CLT) was the most common stop: 67% of momondo users choosing 1-stop flights on this route connected there.

Which layover airport offers the lowest fares from San Diego to Allentown?

Flights via Charlotte (CLT) offer the lowest average round-trip price of $581.

Which layover airport has the shortest travel time from San Diego to Allentown?

Flights connecting via Chicago (ORD) have the shortest average one-way travel time: 7h 21m.

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

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 August 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.

$168 Cheap Flights from San Diego to Allentown in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from San Diego to Allentown

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

4:54 pm - 3:38 pm-

19h 44m

7:30 am - 11:51 pm-

19h 21m

$281Multiple Airlines

Sun, Sep 13 - Mon, Sep 21

6:25 am - 3:08 pm-

29h 43m

7:30 am - 11:51 pm-

19h 21m

$319Multiple Airlines

Thu, Sep 17 - Mon, Sep 21

4:54 pm - 3:38 pm-

19h 44m

6:46 pm - 11:51 pm-

32h 05m

$320Multiple Airlines

Sun, Sep 13 - Mon, Sep 21

9:03 pm - 11:23 pm-

23h 20m

7:30 am - 11:51 pm-

19h 21m

$323Multiple Airlines

Thu, Sep 17 - Mon, Sep 21

6:15 am - 5:18 pm-

8h 03m

12:53 pm - 7:45 pm-

9h 52m

$356Delta

Thu, Nov 19 - Thu, Nov 26

6:15 am - 5:23 pm-

8h 08m

12:56 pm - 7:26 pm-

9h 30m

$379Delta

Sun, Aug 30 - Wed, Sep 9

6:20 am - 5:21 pm-

8h 01m

6:28 am - 12:25 pm-

8h 57m

$379Delta

Tue, Sep 15 - Sat, Sep 26

6:15 am - 4:40 pm-

7h 25m

5:10 pm - 11:25 pm-

9h 15m

$441American Airlines

Wed, Sep 16 - Wed, Sep 23

11:51 am - 10:31 pm-

7h 40m

5:37 am - 11:12 am-

8h 35m

$493American Airlines

Wed, Nov 25 - Fri, Nov 27

7:24 am - 10:40 pm-

12h 16m

5:12 pm - 8:58 am-

18h 46m

$495American Airlines

Mon, Aug 31 - Mon, Sep 7

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United Airlines flights from San Diego to Allentown

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

United Airlines

Aug 15

SAN10:40 pmSan Diego

8h 17m

1 stop

ABE9:57 amAllentown-Bethlehem

Aug 19

ABE6:15 amAllentown-Bethlehem

8h 00m

1 stop

SAN11:15 amSan Diego

$459

United Airlines

Sep 5

SAN10:40 pmSan Diego

8h 17m

1 stop

ABE9:57 amAllentown-Bethlehem

Sep 9

ABE6:15 amAllentown-Bethlehem

8h 10m

1 stop

SAN11:25 amSan Diego

$489

United Airlines

Aug 31

SAN6:18 amSan Diego

7h 38m

1 stop

ABE4:56 pmAllentown-Bethlehem

Sep 7

ABE6:15 amAllentown-Bethlehem

8h 00m

1 stop

SAN11:15 amSan Diego

$492

Delta flights from San Diego to Allentown

Our best Delta deals on San Diego to Allentown flight tickets

Delta

Nov 19

SAN6:15 amSan Diego

8h 03m

1 stop

ABE5:18 pmAllentown-Bethlehem

Nov 26

ABE12:53 pmAllentown-Bethlehem

9h 52m

1 stop

SAN7:45 pmSan Diego

$356

Delta

Sep 1

SAN6:15 amSan Diego

8h 08m

1 stop

ABE5:23 pmAllentown-Bethlehem

Sep 12

ABE6:28 amAllentown-Bethlehem

7h 57m

1 stop

SAN11:25 amSan Diego

$379

Delta

Sep 1

SAN6:15 amSan Diego

13h 08m

2 stops

ABE10:23 pmAllentown-Bethlehem

Sep 11

ABE6:25 amAllentown-Bethlehem

8h 00m

1 stop

SAN11:25 amSan Diego

$384

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

San DiegoAllentown

SAN - ABE

SANABE

San Diego

Sun 9/13

4:54 pm-3:38 pm

1 stop19h 44m

Allentown-Bethlehem

Mon 9/21

7:30 am-11:51 pm

1 stop19h 21m

$281

San DiegoAllentown

SAN - ABE

SANABE

San Diego

Thu 9/17

6:25 am-3:08 pm

1 stop29h 43m

Allentown-Bethlehem

Mon 9/21

7:30 am-11:51 pm

1 stop19h 21m

$319

San DiegoAllentown

SAN - ABE

SANABE

San Diego

Sun 9/13

4:54 pm-3:38 pm

1 stop19h 44m

Allentown-Bethlehem

Mon 9/21

6:46 pm-11:51 pm

2 stops32h 05m

$320

San DiegoAllentown

SAN - ABE

SANABE

San Diego

Thu 9/17

9:03 pm-11:23 pm

2 stops23h 20m

Allentown-Bethlehem

Mon 9/21

7:30 am-11:51 pm

1 stop19h 21m

$323

San DiegoAllentown

SAN - ABE

SANABE

San Diego

Thu 11/19

6:15 am-5:18 pm

1 stop8h 03m

Allentown-Bethlehem

Thu 11/26

12:53 pm-7:45 pm

1 stop9h 52m

$356

San DiegoAllentown

SAN - ABE

SANABE

San Diego

Sun 8/30

6:15 am-5:23 pm

1 stop8h 08m

Allentown-Bethlehem

Wed 9/9

12:56 pm-7:26 pm

1 stop9h 30m

$379

San DiegoAllentown

SAN - ABE

SANABE

San Diego

Tue 9/15

6:20 am-5:21 pm

1 stop8h 01m

Allentown-Bethlehem

Sat 9/26

6:28 am-12:25 pm

1 stop8h 57m

$379

San DiegoAllentown

SAN - ABE

SANABE

San Diego

Wed 9/16

6:15 am-4:40 pm

1 stop7h 25m

Allentown-Bethlehem

Wed 9/23

5:10 pm-11:25 pm

1 stop9h 15m

$441

Quickest round-trip

San DiegoAllentown

SAN - ABE

SANABE

San Diego

Wed 11/25

11:51 am-10:31 pm

1 stop7h 40m

Allentown-Bethlehem

Fri 11/27

5:37 am-11:12 am

1 stop8h 35m

$493

San DiegoAllentown

SAN - ABE

SANABE

San Diego

Mon 8/31

7:24 am-10:40 pm

1 stop12h 16m

Allentown-Bethlehem

Mon 9/7

5:12 pm-8:58 am

1 stop18h 46m

$495

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 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

Layovers

What is the cheapest month to fly to Allentown?

The month of February is, on average, the cheapest month to fly to Allentown from San Diego, with most prices found around $0. If you aren’t able to travel to Allentown during the month of February, then flying in October is also cheap. Prices for this month can be found on momondo for an average of $353.

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

You could potentially save up to 10% 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	7h 58m
Direct flights	None

The fastest flight from San Diego to Allentown takes 7h 58m

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

Search flight deals

Frequently asked questions about flying from San Diego to Allentown

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 7h 58m.
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 August 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 63% of the total bookings. Other popular airlines include Delta with 37%.

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 7.8 8,491 reviews		Search Delta flights
American Airlines	PriceFrom $310	Free Cancellation	Rating 7.1 11,848 reviews		Search American Airlines flights

Lehighton

Why use momondo?

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.