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Cheap flights from Allentown to San Diego from $273

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Allentown to San Diego departing on 7/7. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Allentown to San Diego

Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
1:00 pm - 6:23 pm
ABE
-
SAN
8h 23m
1 stop
Delta Logo
10:40 pm - 12:08 pm
SAN
-
ABE
10h 28m
1 stop
$369Delta
Sat, Sep 12 - Tue, Sep 22
Delta Logo
5:40 pm - 10:44 pm
ABE
-
SAN
8h 04m
1 stop
Delta Logo
7:30 pm - 12:08 pm
SAN
-
ABE
13h 38m
2 stops
$374Delta
Sat, Sep 12 - Tue, Sep 22
Delta Logo
1:00 pm - 10:55 pm
ABE
-
SAN
12h 55m
2 stops
Delta Logo
7:30 pm - 12:08 pm
SAN
-
ABE
13h 38m
2 stops
$379Delta
Sat, Sep 12 - Tue, Sep 22
United Airlines Logo
6:15 am - 11:25 am
ABE
-
SAN
8h 10m
1 stop
United Airlines Logo
10:40 pm - 10:06 am
SAN
-
ABE
8h 26m
1 stop
$386United Airlines
Thu, Sep 10 - Sat, Sep 26
Delta Logo
1:00 pm - 6:23 pm
ABE
-
SAN
8h 23m
1 stop
Delta Logo
10:55 am - 10:56 pm
SAN
-
ABE
9h 01m
1 stop
$389Delta
Thu, Sep 10 - Thu, Sep 24
United Airlines Logo
6:15 am - 11:25 am
ABE
-
SAN
8h 10m
1 stop
United Airlines Logo
6:28 pm - 10:06 am
SAN
-
ABE
12h 38m
2 stops
$391United Airlines
Thu, Sep 10 - Sat, Sep 26
Delta Logo
6:30 am - 6:54 pm
ABE
-
SAN
15h 24m
2 stops
Delta Logo
10:40 pm - 12:08 pm
SAN
-
ABE
10h 28m
1 stop
$394Delta
Sat, Sep 12 - Tue, Sep 22
Delta Logo
6:30 am - 6:23 pm
ABE
-
SAN
14h 53m
2 stops
Delta Logo
7:30 pm - 12:08 pm
SAN
-
ABE
13h 38m
2 stops
$399Delta
Sat, Sep 12 - Tue, Sep 22
Delta Logo
5:40 pm - 10:44 pm
ABE
-
SAN
8h 04m
1 stop
Delta Logo
10:40 pm - 12:08 pm
SAN
-
ABE
10h 28m
1 stop
$400Delta
Sat, Sep 12 - Tue, Sep 22
Delta Logo
6:05 pm - 10:57 pm
ABE
-
SAN
7h 52m
1 stop
Delta Logo
10:15 pm - 12:07 pm
SAN
-
ABE
10h 52m
2 stops
$409Delta
Sat, Jul 18 - Fri, Jul 24

Delta flights from Allentown to San Diego

Our best Delta deals on Allentown to San Diego flight tickets
Delta
Sep 12
ABE1:00 pmAllentown-Bethlehem
8h 23m
1 stop
SAN6:23 pmSan Diego
Sep 22
SAN10:40 pmSan Diego
10h 28m
1 stop
ABE12:08 pmAllentown-Bethlehem
$369
Delta
Sep 12
ABE5:40 pmAllentown-Bethlehem
8h 04m
1 stop
SAN10:44 pmSan Diego
Sep 22
SAN7:30 pmSan Diego
13h 38m
2 stops
ABE12:08 pmAllentown-Bethlehem
$374
Delta
Sep 12
ABE1:00 pmAllentown-Bethlehem
12h 55m
2 stops
SAN10:55 pmSan Diego
Sep 22
SAN7:30 pmSan Diego
13h 38m
2 stops
ABE12:08 pmAllentown-Bethlehem
$379

United Airlines flights from Allentown to San Diego

Our best United Airlines deals on Allentown to San Diego flight tickets
United Airlines
Sep 10
ABE6:15 amAllentown-Bethlehem
8h 10m
1 stop
SAN11:25 amSan Diego
Sep 26
SAN10:40 pmSan Diego
8h 26m
1 stop
ABE10:06 amAllentown-Bethlehem
$386
United Airlines
Sep 10
ABE6:15 amAllentown-Bethlehem
8h 10m
1 stop
SAN11:25 amSan Diego
Sep 26
SAN6:28 pmSan Diego
12h 38m
2 stops
ABE10:06 amAllentown-Bethlehem
$391
United Airlines
Aug 11
ABE5:36 pmAllentown-Bethlehem
7h 34m
1 stop
SAN10:10 pmSan Diego
Aug 18
SAN6:28 pmSan Diego
12h 17m
2 stops
ABE9:45 amAllentown-Bethlehem
$413

momondo Fare Finder

 
Customize your flight search to find flights from Allentown to San Diego 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, momondo users made 832,500 searches. Data last updated May 22, 2026.
Use the filters below to find and compare flights from Allentown to San Diego that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

AllentownSan Diego

ABE - SAN

ABESAN

Allentown-Bethlehem

Sat 9/12

1:00 pm-6:23 pm

1 stop8h 23m

San Diego

Tue 9/22

10:40 pm-12:08 pm

1 stop10h 28m

$369

AllentownSan Diego

ABE - SAN

ABESAN

Allentown-Bethlehem

Sat 9/12

5:40 pm-10:44 pm

1 stop8h 04m

San Diego

Tue 9/22

7:30 pm-12:08 pm

2 stops13h 38m

$374

AllentownSan Diego

ABE - SAN

ABESAN

Allentown-Bethlehem

Sat 9/12

1:00 pm-10:55 pm

2 stops12h 55m

San Diego

Tue 9/22

7:30 pm-12:08 pm

2 stops13h 38m

$379
Quickest round-trip

AllentownSan Diego

ABE - SAN

ABESAN

Allentown-Bethlehem

Thu 9/10

6:15 am-11:25 am

1 stop8h 10m

San Diego

Sat 9/26

10:40 pm-10:06 am

1 stop8h 26m

$386

AllentownSan Diego

ABE - SAN

ABESAN

Allentown-Bethlehem

Thu 9/10

1:00 pm-6:23 pm

1 stop8h 23m

San Diego

Thu 9/24

10:55 am-10:56 pm

1 stop9h 01m

$389

AllentownSan Diego

ABE - SAN

ABESAN

Allentown-Bethlehem

Thu 9/10

6:15 am-11:25 am

1 stop8h 10m

San Diego

Sat 9/26

6:28 pm-10:06 am

2 stops12h 38m

$391

AllentownSan Diego

ABE - SAN

ABESAN

Allentown-Bethlehem

Sat 9/12

6:30 am-6:54 pm

2 stops15h 24m

San Diego

Tue 9/22

10:40 pm-12:08 pm

1 stop10h 28m

$394

AllentownSan Diego

ABE - SAN

ABESAN

Allentown-Bethlehem

Sat 9/12

6:30 am-6:23 pm

2 stops14h 53m

San Diego

Tue 9/22

7:30 pm-12:08 pm

2 stops13h 38m

$399

AllentownSan Diego

ABE - SAN

ABESAN

Allentown-Bethlehem

Sat 9/12

5:40 pm-10:44 pm

1 stop8h 04m

San Diego

Tue 9/22

10:40 pm-12:08 pm

1 stop10h 28m

$400

AllentownSan Diego

ABE - SAN

ABESAN

Allentown-Bethlehem

Sat 7/18

6:05 pm-10:57 pm

1 stop7h 52m

San Diego

Fri 7/24

10:15 pm-12:07 pm

2 stops10h 52m

$409

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to San Diego from

How to get the cheapest flight ticket from Allentown to San Diego

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

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

What is the cheapest month to fly to San Diego?

If you are unable to visit San Diego during the month of September, then departing from Allentown during the month August is also very affordable. Most momondo users find prices during this month for around $448.

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

You could potentially save up to 6% on your flight if you consider stops on a Allentown to San Diego flight.

When to book flights from Allentown to San Diego

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

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

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

Fastest flight time

7h 34m

Direct flights

None
The fastest flight from Allentown to San Diego takes 7h 34m
There are no direct flights from Allentown to San Diego. There are no popular flight routes from Allentown to San Diego.
Search flight deals

Frequently asked questions about flying from Allentown to San Diego

  • How far is Allentown-Bethlehem to San Diego by plane?

    A flight from Allentown-Bethlehem to San Diego will travel around 2349.4 mi. 7h 34m is a normal flight duration for this route.

  • When did momondo last update prices for flights from Allentown-Bethlehem Airport to San Diego Airport?

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

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

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

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Allentown-Bethlehem Airport to San Diego Airport.

  • What documentation or ID do you need to fly to San Diego Airport?

    The travel and health documents you'll need for your trip to San Diego Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at San Diego Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from Allentown to San Diego?

Best airlines flying from Allentown to San Diego

Compare and see reviews for airlines that fly from Allentown to San Diego with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $241Free CancellationRating
7.9
8,449 reviews
Search Delta flights
United AirlinesPriceFrom $328Free CancellationRating
7.4
9,751 reviews
Search United Airlines flights
American AirlinesPriceFrom $361Free CancellationRating
7.1
11,644 reviews
Search American Airlines flights

Traveling to a place near San Diego?

Book flights to San Diego if you plan to visit one of these locations
Coronado
Chula Vista
El Cajon
Julian
National City
Poway
San Ysidro
La Mesa
Borrego Springs
Lemon Grove
Imperial Beach
Alpine
Santee

Why use momondo?

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

It is quick and easy to find Allentown to San Diego 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 San Diego that suits you.

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

Yes. momondo allows you to filter the results for Allentown to San Diego flights to just show those with flexible booking policies.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to San Diego from Allentown.

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

Of course. momondo tracks the price of Allentown to San Diego flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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