ABE - SAN

$169 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 5/28. 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.
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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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Cheap Flights from Allentown to San Diego

 
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.

Recent round-trip flight deals from Allentown to San Diego

KAYAK's recommended round-trip deals from the most popular airlines that fly from Allentown to San Diego.
Discover the best prices for you by selecting your travel dates on KAYAK.
Delta Logo
6:00 am - 12:25 pmABE-SAN
9h 25m1 stop
Delta Logo
11:00 am - 10:30 pmSAN-ABE
8h 30m1 stop
$309Delta
Find Deal
Mon, Jun 30 - Tue, Jul 15
Delta Logo
12:56 pm - 7:56 pmABE-SAN
10h 00m1 stop
Delta Logo
12:18 pm - 11:27 pmSAN-ABE
8h 09m1 stop
$384Delta
Find Deal
Tue, Aug 5 - Fri, Aug 15
Delta Logo
6:05 pm - 11:29 pmABE-SAN
8h 24m1 stop
Delta Logo
8:00 am - 9:16 pmSAN-ABE
10h 16m1 stop
$387Delta
Find Deal
Fri, Jun 27 - Fri, Jul 4
American Airlines Logo
5:47 pm - 10:14 pmABE-SAN
7h 27m1 stop
American Airlines Logo
2:07 pm - 12:15 amSAN-ABE
7h 08m1 stop
$403American Airlines
Find Deal
Sat, Sep 13 - Wed, Sep 17
American Airlines Logo
12:02 pm - 7:19 pmABE-SAN
10h 17m2 stops
American Airlines Logo
2:07 pm - 12:15 amSAN-ABE
7h 08m1 stop
$408American Airlines
Find Deal
Sat, Sep 13 - Wed, Sep 17
American Airlines Logo
12:02 pm - 7:19 pmABE-SAN
10h 17m2 stops
American Airlines Logo
10:26 am - 12:15 amSAN-ABE
10h 49m2 stops
$413American Airlines
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Sat, Sep 13 - Wed, Sep 17
United Airlines Logo
5:35 pm - 10:44 pmABE-SAN
8h 09m1 stop
United Airlines Logo
6:45 am - 9:55 pmSAN-ABE
12h 10m2 stops
$438United Airlines
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Tue, Aug 5 - Wed, Aug 13
United Airlines Logo
5:28 pm - 10:02 pmABE-SAN
7h 34m1 stop
United Airlines Logo
6:45 am - 9:54 pmSAN-ABE
12h 09m2 stops
$444United Airlines
Find Deal
Fri, Sep 12 - Tue, Sep 23
American Airlines Logo
5:42 pm - 10:33 pmABE-SAN
7h 51m1 stop
American Airlines Logo
12:30 pm - 12:21 amSAN-ABE
8h 51m2 stops
$445American Airlines
Find Deal
Thu, Oct 23 - Tue, Nov 4
United Airlines Logo
5:35 pm - 11:46 pmABE-SAN
9h 11m2 stops
United Airlines Logo
10:20 pm - 5:00 pmSAN-ABE
15h 40m1 stop
$591United Airlines
Find Deal
Wed, Jun 25 - Sun, Jun 29
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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’s the cheapest day of the week to fly from Allentown to San Diego?

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

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

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 March, where tickets cost $343 (return) on average. On the other hand, the most expensive months are December and November, where the average cost of round-trip tickets is $733 and $522 respectively.

How far in advance should I book a flight from Allentown to San Diego?

To calculate weekly average prices, KAYAK takes all prices for each week before departure 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 average of all the values for each week.

To get a below average price on the flight from Allentown to San Diego, you should book around 4 weeks before departure. For the absolute cheapest price, our data suggests you should book 11 weeks before departure.

Good to know

Low seasonFebruary
High seasonSeptember
Cheapest flight$169
Best time to beat the crowds but there is an average 10% increase in price.
Most popular time to fly and prices are also 12% 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 $169 for a one-way ticket and $309 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?

    oneworld, Star Alliance, and SkyTeam 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 $457 and an overall rating of 8.0, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $414 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.

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.
8.0
DeltaOverall score based on 7934 reviews
8.2Boarding
7.9Comfort
7.3Food
7.9Entertainment
8.5Crew
Airline reviews

This had nothing to do with Delta… The flights were on time and flawless. The service was excellent. We purchased seats in (aisle/middle) comfort plus since this was a cross country flight. Unfortunately, the woman seated at the window was 300+ pounds and, as might be expected, covered up about a third of the middle seat also. there was absolutely nothing that Delta could have done about that… I just don’t know what the answer should be. If you purchase a seat, you should should be able to use the entire seat and not just the portion that someone else is not sitting/oozing in. Disappointing…there should be something that could be done….I'm just not sure what solution could be.

10.0 ExcellentGary, Apr 2025TPA - LAX
Read more Delta reviews

This had nothing to do with Delta… The flights were on time and flawless. The service was excellent. We purchased seats in (aisle/middle) comfort plus since this was a cross country flight. Unfortunately, the woman seated at the window was 300+ pounds and, as might be expected, covered up about a third of the middle seat also. there was absolutely nothing that Delta could have done about that… I just don’t know what the answer should be. If you purchase a seat, you should should be able to use the entire seat and not just the portion that someone else is not sitting/oozing in. Disappointing…there should be something that could be done….I'm just not sure what solution could be.

Seats are much much more comfortable than United, which is what I usually fly

Great service. Great staff. Boarding was a little slow, but I think there was a service dog slowing things down.

If I pay extra for "comfort+" I expect leg room where I can stretch my legs. I was seated with an attendant's seat blocking my feet. Knee space was fine but my feet had less room than the non-"comfort+" seats. Also, don't go cheap on food when you have flights of 3+ hours. It's insulting.

Only one side of the heafphone jack work. Crew was friendly and helpful.

Great. Flight departed early and arrived early. Deplaning and baggage claim ww were quick.

They separated our seats and moved us to the back of the plane. Hundreds of dollars and thousands of miles used and this was my platinum member experience.

We splurged and decided to fly first class. Seats were roomy. But flight crew arrived late to the airport. That delayed our flight. Most of the passengers had to try to make connections flights. I felt bad for them. We checked 4 bags. We got three from the baggage claim carousel. 4th one was lost. Delta online help wasn’t good. Baggage claim staff were sympathetic and nice but we waited around for almost 2 hours and it had t been found. They did find it several hours later and we had to drive back to airport to retrieve it. I won’t be splurging on 1st. Lass again anytime soon. I think we got worse service. I am also not a huge fan of delta but we have family in ATL so we don’t have a ton of choice. What should have been an easy flight turned into a stressful event due to flight crew tardiness and baggage mishandling.

AC barely worked on a 50 minute flight. It was very warm the whole flight. Flight was very bumpy and hard landing.

Got on the plane and then needed to deboard the plane because they didn’t have any pilots?

A bit rush for transit. Food and entertainment are not available

The gate was too far away for the connecting flight

Generally good. The aisles have gotten narrower which can slow down boarding. Flight crew was great! Healthier complimentary snacks would be appreciated. Due to earthquake in San Francisco we had to circle in air space for a bit but then had a smooth landing. I laud the flight crew for their patience ;)

The agents was very rude and they charged me $50 for a carry-on bag saying that it was too big and then I saw someone going on a plane with the same size bag as me

For the most part united was a good experience, how ever when they came by with the snacks and water, they completely passed by my wife and I. As we were in separate rows. On a 5 hr flight we were not offered water

Fantastic crew. Flight was delayed at last minute but we were given updates every 20 minutes and the crew was so friendly and considerate. I miss the touch screens on the back of the seats, wish they would bring that back though.

Awful. Worst airline I have ever been on. Crew were among the rudest people I have ever dealt with. United staff members were rude and disrespectful. My flight was delayed, causing me to miss a connecting flight. I understand things happen, but when staff start lying about what actually happened, that is when I have an issue. Just be honest, really it isn’t that hard. I’m being very honest with this review and I don’t find this difficult what so ever. In fact, because of United Airlines, my Christmas holiday was off to a really rocky start. As someone who has traveled across the world, it has only been United that I have had a truly awful experience.

Boarding always seems a bit chaotic. Seat spacing could leave more for leg room.

Good flight. On time. Boarding and seating was easy. Crew were really friendly, yet professional. Bathroom (by cockpit) was small but serviceable. Some the seats were showing some notable wear & tear, but were comfy. Very happy UA customer. TY! 🤛🏽💗

We arrived early and finally made it to our gate almost an hour after.

One bottle of water and a package of cookies for comfort plus. We had to literally beg a flight attendant for an extra bottle of water later in the flight due to feeling dehydrated.

Flight boarded from Gate 39 at OGG, the farthest gate in the terminal. There were no Hawaiian themed amenities for the flight. The first class service was mediocre at best; I received not special welcome or recognition as an executive platinum member of American Advantage program. The flight attendants were more concerned with their cell phones than saying "thank you" to the passengers as we disembarked. Fortunately, the flight arrived at LAX a few minutes early.

Bigger seats. Board back to front! Disembark front to back!

Extraordinary service in business class, and very good breakfast and snacks. A really lovely flight.

This flight didn’t happen because AA agents didn’t let us board the flight

Plane was pretty clean, staff was friendly and helpful, flight left about on time arrived early. Took a long time to board and get off the plane - carry on items didn't have enough room so people had to move all around to find places.

The service and food needs to improve to catch up with other international flights

Would have been good to have a meal since it was a 5.5 hour flight

We boarded after several delays due to mechanical failure and a gate change. The seat cushion in the exit row was very compressed and offered no cushion, making the four-hour journey reasonably uncomfortable. The WiFi worked for a few people, but for most, it did not, and you cannot get entertainment unless you can connect—American Airlines flights do not have seatback screens, and you must use your mobile phone.

AA is always pretty solid. Was on time all the way around today so can’t complain!

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

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