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Cheap flights from Allentown to San Diego from $253

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 4/14. 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.
United Airlines Logo
2:30 pm - 9:52 pm
ABE
-
SAN
10h 22m
1 stop
United Airlines Logo
10:30 pm - 10:06 am
SAN
-
ABE
8h 36m
1 stop
$329United Airlines
Sat, Aug 15 - Sat, Aug 22
United Airlines Logo
2:23 pm - 11:54 pm
ABE
-
SAN
12h 31m
2 stops
United Airlines Logo
10:40 pm - 10:03 am
SAN
-
ABE
8h 23m
1 stop
$334United Airlines
Wed, Jun 17 - Wed, Jul 8
United Airlines Logo
2:23 pm - 11:54 pm
ABE
-
SAN
12h 31m
2 stops
United Airlines Logo
6:27 pm - 10:03 am
SAN
-
ABE
12h 36m
2 stops
$339United Airlines
Wed, Jun 17 - Wed, Jul 8
United Airlines Logo
2:23 pm - 11:54 pm
ABE
-
SAN
12h 31m
2 stops
United Airlines Logo
10:40 pm - 9:38 am
SAN
-
ABE
7h 58m
1 stop
$350United Airlines
Sat, May 30 - Sat, Jun 6
American Airlines Logo
5:18 pm - 11:29 pm
ABE
-
SAN
9h 11m
1 stop
American Airlines Logo
10:40 am - 10:15 pm
SAN
-
ABE
8h 35m
1 stop
$382American Airlines
Tue, Aug 4 - Tue, Aug 11
American Airlines Logo
1:56 pm - 9:55 pm
ABE
-
SAN
10h 59m
2 stops
American Airlines Logo
9:45 am - 10:15 pm
SAN
-
ABE
9h 30m
2 stops
$387American Airlines
Sat, Aug 15 - Sat, Aug 22
American Airlines Logo
5:18 pm - 11:29 pm
ABE
-
SAN
9h 11m
1 stop
American Airlines Logo
10:40 am - 10:15 pm
SAN
-
ABE
8h 35m
1 stop
$411American Airlines
Tue, Aug 4 - Tue, Aug 11
United Airlines Logo
2:23 pm - 11:54 pm
ABE
-
SAN
12h 31m
2 stops
United Airlines Logo
10:40 pm - 9:38 am
SAN
-
ABE
7h 58m
1 stop
$416United Airlines
Mon, Jun 1 - Mon, Jun 8
American Airlines Logo
5:18 pm - 11:29 pm
ABE
-
SAN
9h 11m
1 stop
American Airlines Logo
9:45 am - 10:35 pm
SAN
-
ABE
9h 50m
2 stops
$417American Airlines
Tue, Aug 4 - Tue, Aug 11
United Airlines Logo
2:23 pm - 11:54 pm
ABE
-
SAN
12h 31m
2 stops
United Airlines Logo
6:27 pm - 9:38 am
SAN
-
ABE
12h 11m
2 stops
$421United Airlines
Mon, Jun 1 - Mon, Jun 8

United Airlines flights from Allentown to San Diego

Our best United Airlines deals on Allentown to San Diego flight tickets
United Airlines
Jun 17
ABE2:23 pmAllentown-Bethlehem
12h 31m
2 stops
SAN11:54 pmSan Diego
Jul 8
SAN10:40 pmSan Diego
8h 23m
1 stop
ABE10:03 amAllentown-Bethlehem
$334
United Airlines
Jun 17
ABE2:23 pmAllentown-Bethlehem
12h 31m
2 stops
SAN11:54 pmSan Diego
Jul 8
SAN6:27 pmSan Diego
12h 36m
2 stops
ABE10:03 amAllentown-Bethlehem
$339
United Airlines
May 30
ABE2:23 pmAllentown-Bethlehem
12h 31m
2 stops
SAN11:54 pmSan Diego
Jun 6
SAN10:40 pmSan Diego
7h 58m
1 stop
ABE9:38 amAllentown-Bethlehem
$350

Delta flights from Allentown to San Diego

Our best Delta deals on Allentown to San Diego flight tickets
Delta
Mar 7
ABE12:47 pmAllentown-Bethlehem
10h 52m
1 stop
SAN8:39 pmSan Diego
Mar 10
SAN6:15 amSan Diego
8h 02m
1 stop
ABE5:17 pmAllentown-Bethlehem
$431
Delta
Mar 25
ABE5:58 pmAllentown-Bethlehem
8h 11m
1 stop
SAN11:09 pmSan Diego
Apr 2
SAN6:20 amSan Diego
13h 32m
2 stops
ABE10:52 pmAllentown-Bethlehem
$479
Delta
Jun 16
ABE6:30 amAllentown-Bethlehem
8h 05m
1 stop
SAN11:35 amSan Diego
Jul 7
SAN3:59 pmSan Diego
17h 11m
2 stops
ABE12:10 pmAllentown-Bethlehem
$523

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 March 1, 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

AllentownSan Diego

ABE - SAN

ABESAN

Allentown-Bethlehem

Sat 8/15

2:30 pm-9:52 pm

1 stop10h 22m

San Diego

Sat 8/22

10:30 pm-10:06 am

1 stop8h 36m

$329

AllentownSan Diego

ABE - SAN

ABESAN

Allentown-Bethlehem

Wed 6/17

2:23 pm-11:54 pm

2 stops12h 31m

San Diego

Wed 7/8

10:40 pm-10:03 am

1 stop8h 23m

$334

AllentownSan Diego

ABE - SAN

ABESAN

Allentown-Bethlehem

Wed 6/17

2:23 pm-11:54 pm

2 stops12h 31m

San Diego

Wed 7/8

6:27 pm-10:03 am

2 stops12h 36m

$339

AllentownSan Diego

ABE - SAN

ABESAN

Allentown-Bethlehem

Sat 5/30

2:23 pm-11:54 pm

2 stops12h 31m

San Diego

Sat 6/6

10:40 pm-9:38 am

1 stop7h 58m

$350

AllentownSan Diego

ABE - SAN

ABESAN

Allentown-Bethlehem

Tue 8/4

5:18 pm-11:29 pm

1 stop9h 11m

San Diego

Tue 8/11

10:40 am-10:15 pm

1 stop8h 35m

$382

AllentownSan Diego

ABE - SAN

ABESAN

Allentown-Bethlehem

Sat 8/15

1:56 pm-9:55 pm

2 stops10h 59m

San Diego

Sat 8/22

9:45 am-10:15 pm

2 stops9h 30m

$387

AllentownSan Diego

ABE - SAN

ABESAN

Allentown-Bethlehem

Tue 8/4

5:18 pm-11:29 pm

1 stop9h 11m

San Diego

Tue 8/11

10:40 am-10:15 pm

1 stop8h 35m

$411

AllentownSan Diego

ABE - SAN

ABESAN

Allentown-Bethlehem

Mon 6/1

2:23 pm-11:54 pm

2 stops12h 31m

San Diego

Mon 6/8

10:40 pm-9:38 am

1 stop7h 58m

$416

AllentownSan Diego

ABE - SAN

ABESAN

Allentown-Bethlehem

Tue 8/4

5:18 pm-11:29 pm

1 stop9h 11m

San Diego

Tue 8/11

9:45 am-10:35 pm

2 stops9h 50m

$417

AllentownSan Diego

ABE - SAN

ABESAN

Allentown-Bethlehem

Mon 6/1

2:23 pm-11:54 pm

2 stops12h 31m

San Diego

Mon 6/8

6:27 pm-9:38 am

2 stops12h 11m

$421

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 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 July is also very affordable. Most momondo users find prices during this month for around $428.

What is the cheapest day to depart on your flight to San Diego?

The cheapest day to depart from Allentown to San Diego is on a Tuesday. Travelers who choose to depart for San Diego on a Tuesday will often find tickets for as low as $369. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around $485. These prices are subject to change though, so be sure to set up a Price Alert for flights to San Diego.

What is the cheapest time of day to depart on your flight to San Diego?

The cheapest time of day to fly to San Diego is in the evening when flights can be purchased for as low as $367. Flights in the morning are often more expensive with an average ticket price of $409.

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

You could potentially save up to 13% on your flight if you consider stops on a Allentown to San Diego flight.

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

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

8h 06m

Direct flights

None
The fastest flight from Allentown to San Diego takes 8h 06m
There are no direct flights from Allentown to San Diego. There are no popular flight routes from Allentown to San Diego.
Search flight deals

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

    A flight from Allentown-Bethlehem to San Diego will travel around 2349.4 mi. 8h 06m 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 $236Free CancellationRating
7.9
8,244 reviews
Search Delta flights
United AirlinesPriceFrom $313Free CancellationRating
7.4
9,370 reviews
Search United Airlines flights
American AirlinesPriceFrom $361Free CancellationRating
7.1
11,370 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
Poway
National City
Imperial Beach
San Ysidro
Borrego Springs
La Mesa
Alpine
Lemon Grove
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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