ABE - SAN

$290 Find Cheap Flights from Allentown to San Diego

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Allentown to San Diego departing on 5/26. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to San Diego

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Allentown to San Diego, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Allentown to San Diego, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$318
Overall average: $485
United Airlines
Wed 2/25Mon 3/2
ABE - SAN • 1 stop
Cheapest one-way
$290
Typical prices: $243-$298
Delta
Tue 5/26
ABE - SAN • 1 stop
Top airlines
United Airlines
Cheapest • from $318 (round-trip)
Delta
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to travel
September
Cheapest • 24% price drop
March
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to San Diego!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Allentown to San Diego (ABE-SAN)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Allentown to San Diego that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Allentown to San Diego

Wed, Feb 25 - Mon, Mar 2
United Airlines Logo
5:23 pm - 10:44 pm
ABE
-
SAN
8h 21m
1 stop
United Airlines Logo
7:50 pm - 10:01 am
SAN
-
ABE
11h 11m
2 stops
$318United Airlines
Wed, Feb 25 - Mon, Mar 2
United Airlines Logo
10:36 am - 5:29 pm
ABE
-
SAN
9h 53m
2 stops
United Airlines Logo
7:50 pm - 10:01 am
SAN
-
ABE
11h 11m
2 stops
$323United Airlines
Wed, Feb 25 - Mon, Mar 2
United Airlines Logo
10:36 am - 5:29 pm
ABE
-
SAN
9h 53m
2 stops
United Airlines Logo
7:50 pm - 10:01 am
SAN
-
ABE
11h 11m
2 stops
$324United Airlines
Wed, Apr 15 - Wed, Apr 22
United Airlines Logo
5:38 pm - 10:59 pm
ABE
-
SAN
8h 21m
1 stop
United Airlines Logo
10:30 pm - 9:58 am
SAN
-
ABE
8h 28m
1 stop
$329United Airlines
Wed, Apr 15 - Wed, Apr 22
United Airlines Logo
5:38 pm - 10:59 pm
ABE
-
SAN
8h 21m
1 stop
United Airlines Logo
7:40 pm - 9:58 am
SAN
-
ABE
11h 18m
2 stops
$334United Airlines
Tue, Apr 14 - Tue, Apr 21
Delta Logo
5:59 pm - 11:25 pm
ABE
-
SAN
8h 26m
1 stop
Delta Logo
6:15 am - 5:19 pm
SAN
-
ABE
8h 04m
1 stop
$345Delta
Fri, May 1 - Tue, May 5
United Airlines Logo
5:35 pm - 11:59 pm
ABE
-
SAN
9h 24m
2 stops
United Airlines Logo
10:40 pm - 9:58 am
SAN
-
ABE
8h 18m
1 stop
$354United Airlines
Wed, Apr 15 - Wed, Apr 22
United Airlines Logo
10:35 am - 9:22 pm
ABE
-
SAN
13h 47m
2 stops
United Airlines Logo
6:22 pm - 9:58 am
SAN
-
ABE
12h 36m
2 stops
$355United Airlines
Fri, May 1 - Tue, May 5
United Airlines Logo
5:35 pm - 11:59 pm
ABE
-
SAN
9h 24m
2 stops
United Airlines Logo
6:26 pm - 9:58 am
SAN
-
ABE
12h 32m
2 stops
$359United Airlines
Tue, Apr 14 - Wed, Apr 22
Delta Logo
5:59 pm - 11:25 pm
ABE
-
SAN
8h 26m
1 stop
Delta Logo
6:15 am - 5:19 pm
SAN
-
ABE
8h 04m
1 stop
$374Delta
Booking Insights

KAYAK's insights & trends for Allentown to San Diego flights

Get data-powered insights and trends into flights from Allentown to San Diego to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from Allentown to San Diego?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Allentown to San Diego, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Allentown to San Diego is September, where tickets cost $406 (return) on average. On the other hand, the most expensive months are November and December, where the average cost of round-trip tickets is $979 and $712 respectively.

Good to know

Low seasonNovember
Cheapest flight$290
Best time to beat the crowds but there is an average 84% increase in price.
Most popular time to fly and prices are also 21% lower on average.
Flight from Allentown to San Diego

When to book flights from Allentown to San Diego

Are your dates flexible? Find out the best times to travel from Allentown to San Diego based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Allentown to San Diego

  • What is the cheapest flight from Allentown to San Diego?

    In the last 3 days, the lowest price for a flight from Allentown to San Diego was $290 for a one-way ticket and $318 for a round-trip.

  • Do I need a passport to fly between Allentown and San Diego?

    A passport is not required to fly from Allentown to San Diego.

  • Which airports will I be using when flying from Allentown to San Diego?

    On your way to San Diego, you’ll fly out from Allentown-Bethlehem. You’ll be landing at San Diego.

  • Which aircraft models fly most regularly from Allentown to San Diego?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Allentown to San Diego?

    SkyTeam, Star Alliance, and oneworld are the airline alliances operating flights between Allentown and San Diego, with SkyTeam being the most commonly used for this route.

  • Which is the best airline for flights from Allentown to San Diego, Delta or United Airlines?

    The two airlines most popular with KAYAK users for flights from Allentown to San Diego are Delta and United Airlines. With an average price for the route of $477 and an overall rating of 7.9, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $394 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from Allentown to San Diego?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Allentown to San Diego.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Allentown to San Diego?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to San Diego from Allentown is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Allentown to San Diego?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to San Diego with an airline and back to Allentown with another airline. Booking your flights between Allentown and SAN can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Allentown to San Diego?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to San Diego from Allentown up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 3 airlines serving from Allentown to San Diego

 
See real verified KAYAK customer reviews for airlines flying from Allentown to San Diego. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Allentown to San Diego? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.9
DeltaOverall score based on 8128 reviews
7.8Entertainment
7.2Food
7.9Comfort
8.1Boarding
8.5Crew
Airline reviews

I usually get upgraded so my experience is usually amazing. I did not get upgraded this time - which was fine - but the wifi had issues, the monitors were going in & out, & (though not Delta's fault) one of the gentlemen next to me desperately needed a shower.

4.0 OkayLauren, Jan 2026
ATL - SFO
Read more Delta reviews

I usually get upgraded so my experience is usually amazing. I did not get upgraded this time - which was fine - but the wifi had issues, the monitors were going in & out, & (though not Delta's fault) one of the gentlemen next to me desperately needed a shower.

I really liked the legroom. I am 6’4”.a at For some reason our seats were not together and using the app to fix it didn’t work. Passengers were nice enough to move for us but you should absolutely ensure a parent sits with their child.

The gate attendants and the crew were terrible. Because of high winds, they needed to carry more fuel, so they had to get volunteers to take the next flight at 6 am the next day. They did a terrible job of it - our flight ended up taking off just under 3 hours of the scheduled time. I hope to never fly Delta again.

Staff were friendly and happy. Delta could make sure passengers that don't have the app know of changes. Without Kayak I would not have known about the change of gate or the delay. Kayak was faster to notify me.

They changed planes and the new plane couldn’t carry enough fuel to fly across the country so we had to stop in Kansas City to refuel. Flight was delayed .

Flight was too crowded and seats are too small, especially since passengrs are getting larger. Having a middle seat is ALWAYS tough! Woman on my left was large & kept creeping in to my space. Flight personnel were great! Have more savory rather than sweet snacks please.

The crew took good care of us. The flight from ATL to SFO is a longer one, and there were multiple beverage offerings. I like the 757's that Delta uses. Good airplane that is comfortable. I do wish Delta would separate Priority boarding from the better seats. I would gladly take a smaller seat in an open row than be jammed into Comfort just to get priority boarding, just to make sure I don't have to check a bag.

Gate agent rushed to fill hot jetway with crowd so it took over 12 minutes to go from gate to plane. Just like a discount airline Pooly prepared cabin and third time that claim of rough air prevented any cabin service. Friends on a Southwest flight at similar time had service.

I was uncomfortably cold on the plane. Other than that it was uneventful and therefore as enjoyable as a plane ride can be.

Food was surprisingly good but the WiFi was not great

First class ticket gets you a choice of chips or nuts. . Just like economy Southwest. Also no screen in the seats. This is first class???!

Flight arrived 30 min early and bag was waiting at the baggage pickup. United Club HNL was one of the nicest in the system

Yet another flight in which beverage and snack service was skipped. Other that that, firmly mediocre. Landed early, to gate late due to congestion at the gates. Airline's fault or airports fault: unknown.

Teeny tiny bathrooms, crew was not realistic about when we'd arrive.

Unbelievably poor service from flight attendants. They didn’t even do water service on a four hour flight. Just disrespectful.

Flight was late - I was downgraded from first class to coach

United needs to step up their game. Delayed flight leaving Seattle, San Francisco. Older aircraft, not very comfortable.

Plane boarded early a quickly, was mostly full. We left close to on time. And landed early.

7 hours delayed due to operational issues on United’s end. Basically laziness.

Flight was timely, relatively comfortable, with decent entertainment and food served. Only problem encountered was with the free messaging which I highly appreciate, but it did not work from iphone to non-iphones.

Amazing I love American. I’ll never fly anyone else if I can help it.

Everything about the flight was lovely. My only suggestion would be to offer a few more options of tv series from Apple TV or HBO.

After the door had been closed, the cockpit makes an announcement that catering is running late and it is not the airline's fault. It is their fault in the sense that we had to sit for 2 hours or more when we could have stayed in the terminal. Poor communications between catering and airline. This caused a young man to lose his temper and he went storming out hitting objects. He had complained to the gate agent that he had already waited at the gate 7 hours and when can the airplane leave? Airilnes do a poor job of explaining delays, maintenance issues, etc. whereas being truthful may gain more sympathy or understanding.

We were told the flight was delayed 5 times, then it was moved to the next day.

The experience with American Airlines was good, although the Philippines Airlines flight was much better (better seats, better food, better entertainment options, overall better). Again, the MIA to LAX flight was fine, but nothing in comparison to the comfort and accommodations of the Philippines Airlines flight from LAX to MNL.

Loved the crew . Absolutely no complaints. Except for luggage lost

Wish some foods provided rather than just biscuit/cookie for flight more than 2 hours

We are too tired and frustrated to comment politely at this point

The flight crew was rude. We were in first class and no one even offered water until an hour after we were in the air. Horrible experience

Great. Quick and quiet and east. The breakfast choices were a welcome surprise!

Everything you need to know for your flight from Allentown to San Diego

Information on your arrival and departure airports