$169 Find Cheap Flights from Puerto Rico 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 to Allentown departing on 11/5. 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

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 for flights to Allentown, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results for flights to Allentown, as well as popular online travel agencies
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Flight Deals

Cheap Flights from Puerto Rico to Allentown

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

Fri, Jan 30 - Sun, Feb 1
American Airlines Logo
2:25 pm - 12:16 amSJU-ABE
10h 51m1 stop
American Airlines Logo
7:59 pm - 11:45 amABE-SJU
14h 46m1 stop
$275American Airlines
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Sat, Oct 18 - Sat, Nov 15
 Logo
7:58 pm - 10:34 amSJU-ABE
14h 36m1 stop
 Logo
11:31 am - 2:42 pmABE-SJU
26h 11m1 stop
Fri, Jan 30 - Sun, Feb 1
Delta Logo
3:30 pm - 10:52 pmSJU-ABE
8h 22m1 stop
Delta Logo
6:30 am - 5:15 pmABE-SJU
9h 45m1 stop
$345Delta
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Sat, Oct 18 - Sat, Nov 15
 Logo
7:58 pm - 10:34 amSJU-ABE
14h 36m1 stop
 Logo
6:53 pm - 5:54 pmABE-SJU
22h 01m2 stops
Fri, Jan 23 - Sun, Jan 25
United Airlines Logo
2:05 am - 4:22 pmSJU-ABE
15h 17m2 stops
United Airlines Logo
11:30 am - 9:00 pmABE-SJU
8h 30m1 stop
$368United Airlines
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Fri, Oct 24 - Sun, Oct 26
American Airlines Logo
7:45 am - 9:40 pmSJU-ABE
13h 55m1 stop
American Airlines Logo
5:53 pm - 11:54 pmABE-SJU
6h 01m1 stop
$370American Airlines
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Fri, Oct 17 - Sun, Oct 19
American Airlines Logo
7:10 am - 10:40 pmSJU-ABE
15h 30m1 stop
American Airlines Logo
5:53 pm - 11:54 pmABE-SJU
6h 01m1 stop
$390American Airlines
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Fri, Oct 17 - Sat, Nov 15
 Logo
2:49 am - 1:27 pmSJU-ABE
10h 38m1 stop
 Logo
11:31 am - 2:42 pmABE-SJU
26h 11m1 stop
Sat, Jan 24 - Sun, Jan 25
Delta Logo
6:15 am - 12:07 pmSJU-ABE
6h 52m1 stop
Delta Logo
1:00 pm - 8:30 pmABE-SJU
6h 30m1 stop
$410Delta
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Sat, Jan 24 - Sun, Jan 25
United Airlines Logo
8:10 am - 9:15 pmSJU-ABE
14h 05m2 stops
United Airlines Logo
11:30 am - 9:00 pmABE-SJU
8h 30m1 stop
$453United Airlines
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Booking Insights

KAYAK's insights & trends for flights to Allentown

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

What is the cheapest month to fly to Allentown?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights to Allentown, 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 to Allentown is February, where tickets cost $269 on average for return flights. On the other hand, the most expensive months are July and August, where the average cost of tickets from Puerto Rico is $532 and $513 respectively. For one-way flights, the best month to travel is February with an average price of $269.

Good to know

Low seasonFebruary
Cheapest flight$169
Best time to beat the crowds with an average 33% drop in price.
Most popular time to fly with an average 3% increase in price.
Flight from San Juan to Allentown

FAQs - booking Allentown flights

  • How far is Allentown-Bethlehem Airport from central Allentown?

    Central Allentown is 4 miles away from Allentown-Bethlehem Airport.

  • What is the name of Allentown’s airport?

    There is only 1 airport in Allentown, called Allentown-Bethlehem Airport (ABE). It can also be referred to as Allentown Bethlehem, Allentown-Bethlehem, or Lehigh Valley Intl.

  • What is the cheapest day to fly to Allentown?

    Based on KAYAK data, the cheapest day to fly to Allentown is Sunday where round-trip tickets can be as cheap as $329. On the other hand, the most expensive day to fly is Thursday, where round-trip prices are $746 on average.

  • How does KAYAK find such low prices on flights 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 to Allentown.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to 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 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 with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight 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 up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to Allentown?

    The cheapest time of day to fly to Allentown is generally in the morning, when round-trip flights cost $382 on average. The most expensive time of day to fly to Allentown is generally in the evening, which is peak travel time and where the average cost of a ticket is $746.

  • How many direct flights to Allentown are there each week?

    Each week there are around 110 direct flights from within Puerto Rico to Allentown. The most common day for departures is Monday, with 19% of flights taking off on this day.

Top tips for finding cheap flights to Allentown

  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest Allentown flight deals.

Reviews of the top airlines flying from Puerto Rico to Allentown

 
See real verified KAYAK customer reviews for airlines flying to Allentown. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline from Puerto Rico to Allentown. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with 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 7979 reviews
7.9Entertainment
8.5Crew
8.2Boarding
7.3Food
7.9Comfort
Airline reviews

This route with Delta always has delays or is cancelled. Aircrafts seem smaller and older. I fly Delta quite a bit - haven’t had issues with the international flights. But this route has always been the troublesome one

4.0 Okaypuravi, Aug 2025LGA - STL
Read more Delta reviews

This route with Delta always has delays or is cancelled. Aircrafts seem smaller and older. I fly Delta quite a bit - haven’t had issues with the international flights. But this route has always been the troublesome one

The flight crew was friendly. I tried to adjust my seat online ahead of time but no option existed without additional fees. My friend asked at the gate about a seat change and was able to make it happen. That was great! The flight crew moved a very tall gentleman and his companion which allowed us to have more space which was nice. Overall, good experience. Appreciated the blanket and pillow.

Three seats in first class were broken and while they were able to still acommodate us it was looking very touch and go and they had others they could not acommodate

Mechanic delay in addition to a 2 hour change in takeoff time was frustrating.

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.

The flight attendants in SLC were rude. I arrived 40 minutes early to gate. Ticket said I needed check in for seat assignments and tried check in and attendants said they weren’t doing it. And proceeded to never call me to give me a ticket so when time to board I received the very last seat. Please relay to employees to do their job better..,

On this flight I felt the food offering was not as complete as on previous flights. The tomato salad was a bit off and there was nothing additional such a bread or butter. The breakfast was only one option, so you either ate what they had or ate nothing. The crew was efficient, but most seemed frustrated throughout the flight. The flight arrived early and was obstacle-free, so I’m overall quite happy, but the shine in the rest of the experience just wasn’t there.

Our seats were comfortable with adequate room to stretch out and recline. The food was tasty and served it just the right intervals. Our flight attendant was extra attentive and friendly. Flight arrived early. And the most turbulence. Overall that’s good and experience for an 11 hour flight as can be hoped for

The seats got pretty uncomfortable pretty fast. The armrests are bigger than on other planes, so I had less room in the actual seat. My butt hurt by the end of the flight. :/ comfort was the primary issue. The crew were fantastic!

I believe that a four-hour trip should have a meal. Delta had none.

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

They don't make it easy or promote their food options. Dirty plane. Delayed.

International baggage recheck process in Philadelphia was a disaster. Waited 1 hour and 45 minutes to receive our bags. Waited 15 minutes to recheck bags, flight notification boards were blank so we asked an AA representative for our connecting gate and we were directed to the wrong terminal and gate. Our connection window was over 3 hours and we made our flight by 5 minutes. We pulled away from the gate and sat on the runway for 1 1/2 hours. 1 of our 4 bags didn’t make it to Phoenix. The mobile app for lost baggage didn’t work, the AA rep had to manually fix.

I miss my flight and they could not rebook me that day because the other flight was full, and for the next day I had to pay a whole new fee again which I think is unprofessional

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!

The plane was probably full boarding was easy. We were able to check our carry-on luggage for free. It was a return flight through Philly to LA. Never saw a stewardess do a demonstration of emergency Procedures. I think my flight was pretty full

Overall, a good experience. The food, however, was subpar. The breakfast was a joke.

I was late from Jacksonville, FL but the limited interaction I had with the Philly crew was great.

The delays and cancellations kept me stuck in Miami for an additional 24 hours, and the whole thing seemed extremely disorganized

Traveling to a place near Allentown?

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Information on the airport you'll fly into in Allentown

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