SAN - ABE

$226 Find Cheap Flights from San Diego to Allentown

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from San Diego to Allentown departing on 5/12. 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 Allentown

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

Cheapest round-trip
$451
American Airlines
Sat 5/30Tue 6/2
SAN - ABE • 1 stop
Cheapest one-way
$226
Multiple Airlines
Tue 5/12
SAN - ABE • 2 stops
Top airlines
Cheapest • from $451 (round-trip)
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between San Diego and Allentown. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $419 (round-trip)
Shortest trip • 8h 00m (one-way)
Insights
Insights
Insights
Insights
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We hope you love your trip to Allentown!
Flight Deals
Booking Insights
Flight Deals

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

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from San Diego to Allentown 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 San Diego to Allentown

Sat, May 30 - Tue, Jun 2
American Airlines Logo
6:15 am - 4:19 pm
SAN
-
ABE
7h 04m
1 stop
American Airlines Logo
5:06 pm - 11:39 pm
ABE
-
SAN
9h 33m
1 stop
$451American Airlines
Thu, May 28 - Mon, Jun 1
United Airlines Logo
10:40 pm - 9:38 am
SAN
-
ABE
7h 58m
1 stop
United Airlines Logo
2:23 pm - 11:54 pm
ABE
-
SAN
12h 31m
2 stops
$453United Airlines
Thu, May 28 - Mon, Jun 1
Multiple Airlines Logo
1:38 pm - 11:04 pm
SAN
-
ABE
30h 26m
2 stops
Multiple Airlines Logo
2:50 pm - 11:50 pm
ABE
-
SAN
12h 00m
1 stop
$472Multiple Airlines
Sat, May 30 - Tue, Jun 2
United Airlines Logo
8:32 pm - 9:38 am
SAN
-
ABE
10h 06m
2 stops
United Airlines Logo
5:36 pm - 10:34 pm
ABE
-
SAN
7h 58m
1 stop
$474United Airlines
Sat, May 30 - Tue, Jun 2
United Airlines Logo
8:32 pm - 9:38 am
SAN
-
ABE
10h 06m
2 stops
United Airlines Logo
2:23 pm - 11:54 pm
ABE
-
SAN
12h 31m
2 stops
$479United Airlines
Sat, May 30 - Tue, Jun 2
American Airlines Logo
9:50 am - 11:19 pm
SAN
-
ABE
10h 29m
2 stops
American Airlines Logo
5:06 pm - 11:39 pm
ABE
-
SAN
9h 33m
1 stop
$491American Airlines
Sat, May 2 - Tue, May 5
United Airlines Logo
10:40 pm - 9:48 am
SAN
-
ABE
8h 08m
1 stop
United Airlines Logo
2:25 pm - 10:39 pm
ABE
-
SAN
11h 14m
1 stop
$507United Airlines
Thu, May 28 - Mon, Jun 1
American Airlines Logo
1:21 pm - 12:21 am
SAN
-
ABE
8h 00m
1 stop
American Airlines Logo
5:06 pm - 11:39 pm
ABE
-
SAN
9h 33m
1 stop
$515American Airlines
Thu, May 28 - Mon, Jun 1
American Airlines Logo
9:47 am - 12:21 am
SAN
-
ABE
11h 34m
2 stops
American Airlines Logo
5:06 pm - 11:39 pm
ABE
-
SAN
9h 33m
1 stop
$520American Airlines
Sat, May 2 - Tue, May 5
United Airlines Logo
10:40 pm - 9:48 am
SAN
-
ABE
8h 08m
1 stop
United Airlines Logo
6:15 am - 11:25 am
ABE
-
SAN
8h 10m
1 stop
$525United Airlines
Booking Insights

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

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

Which airlines provide the cheapest flights from San Diego to Allentown?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 72 hours.

In the past 3 days, the cheapest round-trip tickets from San Diego to Allentown were found on American Airlines ($451) and United Airlines ($453).

Good to know

Low seasonOctober
Cheapest flight$226
Best time to beat the crowds with an average 27% drop in price.
Most popular time to fly and prices are also 2% lower on average.
Flight from San Diego to Allentown

When to book flights from San Diego to Allentown

Are your dates flexible? Find out the best times to travel from San Diego to Allentown 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 San Diego to Allentown

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

    In the last 3 days, the lowest price for a flight from San Diego to Allentown was $226 for a one-way ticket and $451 for a round-trip.

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

    No, a passport isn't needed to fly from San Diego to Allentown. However, local authorities might ask for an official ID.

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

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

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

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

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

    The two airlines most popular with KAYAK users for flights from San Diego to Allentown are Delta and American Airlines. With an average price for the route of $475 and an overall rating of 7.9, Delta is the most popular choice. American Airlines is also a great choice for the route, with an average price of $486 and an overall rating of 7.1.

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

    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 San Diego to Allentown.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Allentown from San Diego 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 San Diego to Allentown?

    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 Allentown with an airline and back to San Diego with another airline. Booking your flights between San Diego and ABE 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 San Diego to Allentown?

    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 Allentown from San Diego up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airlines flying from San Diego to Allentown

 
See real verified KAYAK customer reviews for airlines flying from San Diego to Allentown. 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 San Diego to Allentown? 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 8296 reviews
8.1Boarding
7.2Food
8.5Crew
7.8Entertainment
7.9Comfort
Airline reviews

I was in first class and literally the men behind me were so aggressively loud I moved myself to economy. This has become so common on Delta - people using audio without headphones, and men on 12am / late night flights drinking and yelling to talk to each other which prevents anyone around them from resting. Pretty crazy to have to move from first to economy (poorer service, less comfort...). Wild wild. Looking into other airlines.

2.0 MediocreIsabella, Mar 2026
SJC - SLC
Read more Delta reviews

I was in first class and literally the men behind me were so aggressively loud I moved myself to economy. This has become so common on Delta - people using audio without headphones, and men on 12am / late night flights drinking and yelling to talk to each other which prevents anyone around them from resting. Pretty crazy to have to move from first to economy (poorer service, less comfort...). Wild wild. Looking into other airlines.

Delayed. Hot. Passenger next to me was so large I couldn’t move.

2+hrs delay without any reason provided and a cramped flight

Flight was delayed by 3-hours and their fix was… complimentary pretzels.

The crew, and fellow passengers, were super gracious and kind. There seemed to be plenty of bin space even though the plane was full. It’s nice to get a glass of wine with dinner in Premiere seating, and there was a lot of food.

Everything I mentioned earlier - the airbus was more comfortable indeed and the experience was further enhanced.

The plane was an older model, so it wasn’t as comfortable as others. The flight attendants were not helpful during onboarding. It was a full flight so there was chaos finding space for baggage.

Originally, I was booked in economy. I paid several hundred additional dollars to upgrade to first class. Then I paid several more hundred dollars to change my flight to a slightly earlier flight. I asked if the changed flight would also seat me in first class, and I was told that it would. When I boarded the plane, however, I was seated in economy. So, I paid $500-600 more than I paid for my original ticket for an upgrade and a changed flight - received the changed flight (which was nice), but did not receive the upgrade. So, I was not completely satisfied.

Awesome! On time flight, early arrival, and a complimentary upgrade!

Delta One is extraordinary. I fly business when somebody hires me. I just wonder why there is such a chasm between business class and the insanely inhumane and nonsensical coach. The seats are not large enough to fit even my tiny wife. We fly 10% of what we did because we don’t want to pay 5-10 k but for $400 it’s unbearable. It seems like the accountants took over and made stupid decisions. Screw in 20 extra seats and make it so unbearable that people fly 90% less. Just put the damn price up and put some proper chairs in. But business, yay.

American Airlines did everything they could with the high Spring Break crowd. I was frustrated to be changed from 1st class to a middle seat at the back of the plane. This has happened before, not sure booking 1st class and paying the extra actually works.

I didn't end up taking this flight. I got up at 4am for a flight that was supposed to board at 6am - at 5:55am you delayed the flight to 10am. The airport is under construction so I switched to a later flight as I wasn't going to sit in the airport for 4 hours. They said the delay was due to the crew needing rest from a flight coming in late the night before - if that was the case then I think you should have delayed the flight much sooner so that passengers wouldn't get up so early and get to the airport to sit and wait.

I very rarely fly American and my experience today reenforces that is the correct decision. While the staff were all very courteous, our flight was first thing in the morning so there was no reason to be delayed, yet appropriate maintenance checks weren’t completed prior to our flight so we were delayed multiple times. Not a great showing, American Airlines.

Boarding is always an ordeal. Less dogs on flights. I am highly allergic to dogs and cats. Why are there so many animals these days?

I was on a small regional flight from Detroit to Philadelphia. When we landed the outside cruise needed to turn something off with the engine, which took quite a long time. Then, when they allowed us to get off the plane it was outside. They took their time, unloading all the luggage and waited till they unloaded all the luggage before they brought it over to us. It was 9 o’clock at night freezing cold out, and there was no proactive hustle to try to get people their luggage. It was really one of the worst experiences I think I’ve ever had with American until a manager came over. I don’t think they were going to even consider pulling the luggage over to the people that had been waiting outside for at least 10 minutes in the freezing cold.

Awful. Original flight was delayed 5 hours. Had to to take a connecting flight instead of direct. Had a 4 hour layover. I missed all of my morning meetings getting in 5 hours later than I was supposed to and had to change to take a later flight the next day to get them back in which cia time another $150.

I was trying to take 2 one and a half hour one way trips and I experienced almost 20 delays over the course of those two trips. Only a few of them were due to weather the rest was disorganization

The attendants were kind and helpful. A sugar-free drink would have been very welcome.

The entertainment options were at best, fair. It was exactly the same as my outbound flight. It would have been more entertaining if there were some series from Apple TV, HBO, Showtime or other carriers for me to catch up with.

The seat cushions were very worn so they were extremely uncomfortable.

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

Information on your arrival and departure airports