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

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

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 48% of people opting to fly with this airline when traveling to Allentown. Keep in mind that there are 7 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 travel time from San Diego to Allentown?

Flights connecting via Charlotte (CLT) have the shortest average one-way travel time: 7h 18m.

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

Charlotte (CLT) has the shortest average layover time for this route: 0h 52m.

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

Chicago (ORD) 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 $675.

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 3 as of September 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.

$181 Cheap Flights from San Diego to Allentown in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from San Diego to Allentown

Round-trip

One-way

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Cheap round-trip flights

Enter your travel dates to find the best prices.

6:15 am - 5:23 pmSAN San Diego-ABE Allentown-Bethlehem

8h 08m1 stop Atlanta Hartsfield-Jackson

1:00 pm - 6:42 pmABE Allentown-Bethlehem-SAN San Diego

8h 42m1 stop Atlanta Hartsfield-Jackson

$399Delta

Wed, Dec 16 - Wed, Jan 20

7:59 pm - 12:05 pmSAN San Diego-ABE Allentown-Bethlehem

13h 06m2 stops Los Angeles Atlanta Hartsfield-Jackson

6:03 pm - 11:24 pmABE Allentown-Bethlehem-SAN San Diego

8h 21m1 stop Atlanta Hartsfield-Jackson

$404Delta

Tue, Oct 20 - Mon, Oct 26

7:41 pm - 9:37 amSAN San Diego-ABE Allentown-Bethlehem

10h 56m2 stops San Francisco Chicago O'Hare Intl

5:43 pm - 10:41 pmABE Allentown-Bethlehem-SAN San Diego

7h 58m1 stop Chicago O'Hare Intl

$404United Airlines

Fri, Oct 16 - Fri, Oct 23

10:30 pm - 9:37 amSAN San Diego-ABE Allentown-Bethlehem

8h 07m1 stop Chicago O'Hare Intl

10:37 am - 8:08 pmABE Allentown-Bethlehem-SAN San Diego

12h 31m2 stops Chicago O'Hare Intl Los Angeles

$480United Airlines

Fri, Oct 16 - Wed, Oct 21

7:41 pm - 9:37 amSAN San Diego-ABE Allentown-Bethlehem

10h 56m2 stops San Francisco Chicago O'Hare Intl

6:20 am - 1:44 pmABE Allentown-Bethlehem-SAN San Diego

10h 24m2 stops Chicago O'Hare Intl San Francisco

$485United Airlines

Fri, Oct 16 - Wed, Oct 21

6:20 am - 10:37 pmSAN San Diego-ABE Allentown-Bethlehem

13h 17m2 stops Salt Lake City Atlanta Hartsfield-Jackson

1:00 pm - 9:52 pmABE Allentown-Bethlehem-SAN San Diego

11h 52m2 stops Atlanta Hartsfield-Jackson Detroit Metropolitan Wayne County

$519Delta

Tue, Dec 22 - Mon, Jan 11

7:59 pm - 12:05 pmSAN San Diego-ABE Allentown-Bethlehem

13h 06m2 stops Los Angeles Atlanta Hartsfield-Jackson

1:00 pm - 10:12 pmABE Allentown-Bethlehem-SAN San Diego

12h 12m2 stops Atlanta Hartsfield-Jackson Detroit Metropolitan Wayne County

$529Delta

Tue, Oct 20 - Mon, Oct 26

11:55 am - 10:13 pmSAN San Diego-ABE Allentown-Bethlehem

7h 18m1 stop Charlotte Douglas

7:14 am - 1:09 pmABE Allentown-Bethlehem-SAN San Diego

8h 55m1 stop Chicago O'Hare Intl

$533American Airlines

Tue, Dec 22 - Mon, Jan 11

1:11 pm - 11:25 pmSAN San Diego-ABE Allentown-Bethlehem

7h 14m1 stop Charlotte Douglas

6:00 am - 12:34 pmABE Allentown-Bethlehem-SAN San Diego

9h 34m1 stop Chicago O'Hare Intl

$533American Airlines

Tue, Oct 20 - Mon, Oct 26

6:18 am - 6:14 pmSAN San Diego-ABE Allentown-Bethlehem

8h 56m1 stop Chicago O'Hare Intl

11:48 am - 7:00 pmABE Allentown-Bethlehem-SAN San Diego

10h 12m1 stop Charlotte Douglas

$585American Airlines

Fri, Oct 16 - Fri, Oct 23

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Delta flights from San Diego to Allentown

Our best Delta deals on San Diego to Allentown flight tickets

Delta

Dec 16

SAN6:15 amSan Diego

8h 08m

1 stop

ABE5:23 pmAllentown-Bethlehem

Jan 20

ABE1:00 pmAllentown-Bethlehem

8h 42m

1 stop

SAN6:42 pmSan Diego

$399

Delta

Sep 23

SAN6:20 amSan Diego

8h 01m

1 stop

ABE5:21 pmAllentown-Bethlehem

Oct 17

ABE6:39 amAllentown-Bethlehem

9h 05m

1 stop

SAN12:44 pmSan Diego

$475

Delta

Dec 22

SAN6:20 amSan Diego

13h 17m

2 stops

ABE10:37 pmAllentown-Bethlehem

Jan 11

ABE1:00 pmAllentown-Bethlehem

11h 52m

2 stops

SAN9:52 pmSan Diego

$519

United Airlines flights from San Diego to Allentown

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

United Airlines

Oct 16

SAN7:41 pmSan Diego

10h 56m

2 stops

ABE9:37 amAllentown-Bethlehem

Oct 23

ABE5:43 pmAllentown-Bethlehem

7h 58m

1 stop

SAN10:41 pmSan Diego

$404

United Airlines

Oct 16

SAN10:30 pmSan Diego

8h 07m

1 stop

ABE9:37 amAllentown-Bethlehem

Oct 21

ABE10:37 amAllentown-Bethlehem

12h 31m

2 stops

SAN8:08 pmSan Diego

$480

United Airlines

Oct 16

SAN7:41 pmSan Diego

10h 56m

2 stops

ABE9:37 amAllentown-Bethlehem

Oct 21

ABE6:20 amAllentown-Bethlehem

10h 24m

2 stops

SAN1:44 pmSan Diego

$485

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

San DiegoAllentown

SAN San Diego - ABE Allentown-Bethlehem

SANABE

San Diego

Wed 12/16

6:15 am-5:23 pm

1 stop8h 08m

Allentown-Bethlehem

Wed 1/20

1:00 pm-6:42 pm

1 stop8h 42m

$399

San DiegoAllentown

SAN San Diego - ABE Allentown-Bethlehem

SANABE

San Diego

Tue 10/20

7:59 pm-12:05 pm

2 stops13h 06m

Allentown-Bethlehem

Mon 10/26

6:03 pm-11:24 pm

1 stop8h 21m

$404

San DiegoAllentown

SAN San Diego - ABE Allentown-Bethlehem

SANABE

San Diego

Fri 10/16

7:41 pm-9:37 am

2 stops10h 56m

Allentown-Bethlehem

Fri 10/23

5:43 pm-10:41 pm

1 stop7h 58m

$404

San DiegoAllentown

SAN San Diego - ABE Allentown-Bethlehem

SANABE

San Diego

Fri 10/16

10:30 pm-9:37 am

1 stop8h 07m

Allentown-Bethlehem

Wed 10/21

10:37 am-8:08 pm

2 stops12h 31m

$480

San DiegoAllentown

SAN San Diego - ABE Allentown-Bethlehem

SANABE

San Diego

Fri 10/16

7:41 pm-9:37 am

2 stops10h 56m

Allentown-Bethlehem

Wed 10/21

6:20 am-1:44 pm

2 stops10h 24m

$485

San DiegoAllentown

SAN San Diego - ABE Allentown-Bethlehem

SANABE

San Diego

Tue 12/22

6:20 am-10:37 pm

2 stops13h 17m

Allentown-Bethlehem

Mon 1/11

1:00 pm-9:52 pm

2 stops11h 52m

$519

San DiegoAllentown

SAN San Diego - ABE Allentown-Bethlehem

SANABE

San Diego

Tue 10/20

7:59 pm-12:05 pm

2 stops13h 06m

Allentown-Bethlehem

Mon 10/26

1:00 pm-10:12 pm

2 stops12h 12m

$529

Quickest round-trip

San DiegoAllentown

SAN San Diego - ABE Allentown-Bethlehem

SANABE

San Diego

Tue 12/22

11:55 am-10:13 pm

1 stop7h 18m

Allentown-Bethlehem

Mon 1/11

7:14 am-1:09 pm

1 stop8h 55m

$533

San DiegoAllentown

SAN San Diego - ABE Allentown-Bethlehem

SANABE

San Diego

Tue 10/20

1:11 pm-11:25 pm

1 stop7h 14m

Allentown-Bethlehem

Mon 10/26

6:00 am-12:34 pm

1 stop9h 34m

$533

San DiegoAllentown

SAN San Diego - ABE Allentown-Bethlehem

SANABE

San Diego

Fri 10/16

6:18 am-6:14 pm

1 stop8h 56m

Allentown-Bethlehem

Fri 10/23

11:48 am-7:00 pm

1 stop10h 12m

$585

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 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 $427 to $522.
The lowest price recently found on this route was $399.

What is the cheapest month to fly to Allentown?

The month of August 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 August, then flying in February is also cheap. Prices for this month can be found on momondo for an average of $0.

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

You could potentially save up to 2% on your flight if you consider stops on a San Diego to Allentown flight.

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

Best Price Found	$181
Fastest flight time	7h 06m
Direct flights	None

The best one-way flight to Allentown from San Diego in the past 72 hours is $181. The best round-trip flight deal from San Diego to Allentown found on momondo in the last 72 hours is $399.

The fastest flight from San Diego to Allentown takes 7h 06m

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 06m.
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 3 as of September 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 52% of the total bookings. Other popular airlines include Delta with 24% and United Airlines with 24%.

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
American Airlines	PriceFrom $310	Free Cancellation	Rating 7.0 12,072 reviews	Search American Airlines flights
United Airlines	PriceFrom $344	Free Cancellation	Rating 7.4 10,220 reviews	Search United Airlines flights
Delta	PriceFrom $364	Free Cancellation	Rating 7.8 8,591 reviews	Search Delta flights

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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.