SAN - ABE

$172 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 12/4. 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
$386
United Airlines
jeu. 11/27dim. 12/7
SAN - ABE • 2 stops
Cheapest one-way
$172
Typical prices: $376-$618
Delta
jeu. 12/4
SAN - ABE • 1 stop
Top airlines
United Airlines
Cheapest • from $386 (round-trip)
Delta
Best reviews • 7.9 score
Airline reviews
Airline reviews
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Airline reviews
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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

jeu., nov. 27 - dim., déc. 7
United Airlines Logo
7:50 pm - 11:48 amSAN-ABE
12h 58m2 stops
United Airlines Logo
6:30 am - 11:30 amABE-SAN
8h 00m1 stop
$386United Airlines
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sam., févr. 21 - mar., févr. 24
United Airlines Logo
6:15 am - 9:01 pmSAN-ABE
11h 46m2 stops
United Airlines Logo
10:33 am - 3:41 pmABE-SAN
8h 08m1 stop
$431United Airlines
Find Deal
sam., févr. 21 - mar., févr. 24
United Airlines Logo
6:15 am - 9:01 pmSAN-ABE
11h 46m2 stops
United Airlines Logo
10:33 am - 11:40 pmABE-SAN
16h 07m2 stops
$436United Airlines
Find Deal
sam., févr. 21 - mar., févr. 24
American Airlines Logo
1:37 pm - 12:28 amSAN-ABE
7h 51m1 stop
American Airlines Logo
7:34 am - 1:36 pmABE-SAN
9h 02m1 stop
$443American Airlines
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sam., févr. 21 - mar., févr. 24
Delta Logo
6:20 am - 5:13 pmSAN-ABE
7h 53m1 stop
Delta Logo
1:00 pm - 8:56 pmABE-SAN
10h 56m1 stop
$494Delta
Find Deal
sam., févr. 21 - mar., févr. 24
Delta Logo
6:20 am - 10:52 pmSAN-ABE
13h 32m2 stops
Delta Logo
5:40 pm - 11:11 pmABE-SAN
8h 31m1 stop
$524Delta
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mar., nov. 11 - mer., nov. 12
American Airlines Logo
12:40 pm - 10:52 pmSAN-ABE
7h 12m1 stop
American Airlines Logo
1:46 pm - 7:43 pmABE-SAN
8h 57m1 stop
$537American Airlines
Find Deal
mer., déc. 24 - dim., janv. 4
American Airlines Logo
10:01 pm - 11:20 amSAN-ABE
10h 19m1 stop
American Airlines Logo
6:04 am - 11:05 amABE-SAN
8h 01m1 stop
$540American Airlines
Find Deal
dim., déc. 21 - dim., janv. 4
American Airlines Logo
9:50 am - 11:29 pmSAN-ABE
10h 39m2 stops
American Airlines Logo
6:04 am - 11:05 amABE-SAN
8h 01m1 stop
$603American Airlines
Find Deal
jeu., déc. 25 - dim., janv. 4
Delta Logo
11:25 am - 10:46 pmSAN-ABE
8h 21m1 stop
Delta Logo
6:04 pm - 12:55 pmABE-SAN
21h 51m1 stop
$633Delta
Find Deal
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.

What’s the cheapest day of the week to fly from San Diego to Allentown?

The average price of all round-trip flights from San Diego to Allentown clicked on KAYAK for each day over the last 12 months.

For San Diego to Allentown, Thursday is the cheapest day to fly on average and Saturday is the most expensive. Flying from Allentown back to San Diego, the best deals are generally found on Tuesday, with Wednesday being the most expensive.

Good to know

Low seasonMarch
Cheapest flight$172
Best time to beat the crowds with an average 24% drop in price.
Most popular time to fly and prices are also 16% 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 $172 for a one-way ticket and $386 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 $421 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 $539 and an overall rating of 7.2.

  • 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 7998 reviews
8.5Crew
8.2Boarding
7.9Comfort
7.9Entertainment
7.3Food
Airline reviews

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.

8.0 ExcellentJulie, Oct 2025LAX - SFO
Read more Delta reviews

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.

The flight used a B767 with a very old interior from before 2014. The entertainment system did not work at all during the flight despite attempts to reset the system. It was like they flew this route just to be competitive.

Delayed flight (1hour) plus a long layover after an overnight flight with no backup plane available.

Flight delayed for two and half hours and then canceled altogether due to mechanical issues. No mechanic onsite to fix so had to send one from LAX.

Delayed due to thunderstorms and no in-flight service due to rough weather — both of which are out of Delta’s control. Flight was good overall.

My husband upgraded our seats and I don't know if it was due to the type of planet was or if they didn't upgrade our seats. We were supposed to be in I believe comfort seats and they were just as tight as any other seat- no leg room and we are very tall people but at least it wasn't extremely cold. My husband did put in a complaint about our seating because he paid extra and if we would have known that the space and the tightness would have been the same, we just would have gotten the emergency row emergency row seats that we normally get. We love Delta but both our flights coming home we're not good. Oh I forgot to mention that on our flight to Hawaii our luggage wheels got broke and we had to purse new luggage on vacation then we never had this problem so we didn't know protocol and reported it after we got home only for them to tell is we only had 24hrs to report the damage. Not sure what was going on with Delta this vacation trip.

Crew was excellent. Comfort seats not as nice as other kinds of planes.

It was a great flight and the stewards and stewardess were all kind and accommodating!! The seats were comfortable and entertainment screen excellent!

There are 4 flights in consecutive gates with about the same departure time. Two flights were boarding at the same time. One was delayed or boarding would be happening at the same time. I am not sure what Delta and LAX need to do to have a better layout at the end of Terminal 2

There was a security issue at the airport and we were unable to land. We circled endlessly and then landed at another airfield for fuel. We then circled the airport again, almost landed but didn’t fully touch down before circling again. I am thankful to the crew for keeping us safe- the issue was the airline and staff at the airport getting us seats on our connecting flights. That part was hours of searching for someone and getting in double my steps.

the trip to madrid was uncomfortable with my legs touching the seat in front of me

The Phildalphia to Allentown portion was a BUS, not a plane. All was as expected.

Very crowded flight but what can you expect these days?? Crew was accommodating.

The seats in economy were appeared to be quite thin and lack sufficient cushioning to be comfortable. Perhaps it was my seating position but the plane seemed notably load.

The entertainment package was vast and the selections were very current. Keep updating it was great.

The seat was so hard my tailbone was aching The crew was kind of a b**** because I made a joke that I didn't care if they close the door I total c*** when she was trying to f****** act like she was mad at me because I said that The flight was bumpy. Sure you didnt have control over that.

Internet was a bit expensive and did not work ask that week otherwise a good flight

The flight had a delay that made me being in a real rush to take the second flight. The delay was almost for 2 hours. They moved us from gate to gate in 4 times. Once I arrived to Philadelphia, I got to run thorough all the airport, as the train was already closed by that time. So I got sick with asthma for all the running I had to do. And I was the last one to board, when it was almost closed. So irresponsable with the people

Above and beyond effort from this crew in a tough situation. So helpful and understanding. Thank you!

Cramped seats. FAA should make airlines have more legroom, for even short people complain

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

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