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Allentown

$209+ Cheap flights from San Diego to Allentown (SAN - ABE)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/9. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — ABE
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
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Cheap flight deals from San Diego to Allentown

Discover tips and strategies to find the most affordable flight options for your journey from San Diego (SAN) to Allentown (ABE). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated June 12, 2025.

Round-trip from

$363
(Delta)

One-way from

$209
(Delta)

Popular in

November

Cheapest in

March

Average price

$539
From San Diego to Allentown-Bethlehem
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One-way flight from San Diego to Allentown-Bethlehem
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Highest demand for flights based on searches. 13% potential increase in price ($75 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($14 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Find flight deals from San Diego to Allentown

Cheapest flights from San Diego to Allentown
Explore the most affordable flight options available from San Diego to Allentown. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.

This Delta deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/611:00 amSAN - ABE
1 stop8h 30mDelta
Wed 8/1312:56 pmABE - SAN
1 stop9h 30mDelta
Deal found 6/11$363
This American Airlines deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/67:15 amSAN - ABE
1 stop7h 45mAmerican Airlines
Wed 8/132:56 pmABE - SAN
2 stops10h 34mAmerican Airlines
Deal found 6/12$408
This Mytrip deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/256:15 amSAN - ABE
2 stops35h 38mMultiple Airlines
Sun 6/299:43 pmABE - SAN
2 stops15h 54mMultiple Airlines
Deal found 6/10$415
This United Airlines deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/76:35 amSAN - ABE
1 stop12h 20mUnited Airlines
Tue 7/86:30 amABE - SAN
2 stops18h 44mUnited Airlines
Deal found 6/11$1,546

Cheapflights Fare Finder

Customize your flight search to find flights from San Diego to Allentown that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated June 12, 2025.
Use the filters below to find and compare flights from San Diego to Allentown that are best for you.

Fly from

San Diego

Fly to

Allentown

Route

Depart

Return

Price

San DiegoAllentown

SAN - ABE

SANABE

San Diego

Wed 8/6

11:00 am-10:30 pm

1 stop8h 30m

Allentown-Bethlehem

Wed 8/13

12:56 pm-7:26 pm

1 stop9h 30m

$363

San DiegoAllentown

SAN - ABE

SANABE

San Diego

Wed 8/6

7:15 am-6:00 pm

1 stop7h 45m

Allentown-Bethlehem

Wed 8/13

2:56 pm-10:30 pm

2 stops10h 34m

$408

San DiegoAllentown

SAN - ABE

SANABE

San Diego

Wed 6/25

6:15 am-8:53 pm

2 stops35h 38m

Allentown-Bethlehem

Sun 6/29

9:43 pm-10:37 am

2 stops15h 54m

$415

San DiegoAllentown

SAN - ABE

SANABE

San Diego

Mon 7/7

6:35 am-9:55 pm

1 stop12h 20m

Allentown-Bethlehem

Tue 7/8

6:30 am-10:14 pm

2 stops18h 44m

$1,546

San DiegoAllentown

SAN - ABE

SANABE

San Diego

Tue 9/9

12:09 pm-10:39 pm

1 stop7h 30m

$209

San DiegoAllentown

SAN - ABE

SANABE

San Diego

Sat 12/6

7:00 am-8:43 pm

2 stops10h 43m

$214

San DiegoAllentown

SAN - ABE

SANABE

San Diego

Fri 6/27

6:15 am-10:19 pm

3 stops37h 04m

$239

San DiegoAllentown

SAN - ABE

SANABE

San Diego

Thu 6/26

1:23 pm-12:20 am

1 stop7h 57m

$527

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/11

Best time to book a flight from San Diego to Allentown

Have a flexible travel schedule? Discover the best time to fly to Allentown from San Diego with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

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

What is the cheapest month to book a flight from San Diego to Allentown?

Currently, February is the cheapest month in which you can book a flight from San Diego to Allentown (average of $292). Flying from San Diego to Allentown in December is currently the most expensive (average of $395). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from SAN to ABE?

Find hourly flight availability from San Diego to Allentown. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 12, 2025.

One of the essential ways to save on airfare from San Diego to Allentown is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the afternoon could potentially save you up to 21% on airfare.

Rainfall in Allentown by month

Plan your trip to Allentown by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Allentown ranges from 2.7 - 5.0 inches per month. July is typically the wettest month, when rainfall can reach 5.0 in. February is typically the driest time to visit Allentown when rainfall is around 2.7 in.

Temperature in Allentown by month

Plan your trip to Allentown by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Allentown, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 28.4 F).

Reviews of airlines servicing Allentown

Get insights into the airlines that provide service to Allentown. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Allentown. Reviews last updated June 12, 2025.
Delta
8.0
Very good
7,946 reviews

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Overall

8.0

Food

7.3

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Michael,Sep 2023

SMF - ATL

Not sufficient leg room and three seats are very tigh.t on 737 in economy main cabin
Delta
8.0
Very good
7,946 reviews
Delta
8.0
Very good
7,946 reviews

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Overall

8.0

Food

7.3

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Michael,Sep 2023

SMF - ATL

Not sufficient leg room and three seats are very tigh.t on 737 in economy main cabin
United Airlines
7.4
Good
8,790 reviews
Delta
8.0
Very good
7,946 reviews

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Overall

8.0

Food

7.3

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Michael,Sep 2023

SMF - ATL

Not sufficient leg room and three seats are very tigh.t on 737 in economy main cabin
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,946 reviews

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Overall

8.0

Food

7.3

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Michael,Sep 2023

SMF - ATL

Not sufficient leg room and three seats are very tigh.t on 737 in economy main cabin

Related info for your journey

Find useful and relevant information for your journey from San Diego to Allentown. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines flying from San Diego to Allentown round-trip?

    Flying on Delta is currently your cheapest option to Allentown, with prices starting at $363. Additional round-trip tickets that might be worth considering are offered by American Airlines and United Airlines, with the lowest prices starting at $408 and $1,546, respectively. Users have found that Delta is 24% cheaper than the other options available to this destination.

  • What are the cheapest airlines to fly from San Diego to Allentown one-way?

    One-way options have recently been found by users for as low as $209 on Delta. Other airlines that offer cheap prices include United Airlines from $214 and American Airlines from $527 one-way.

  • Can I find deals for flights from San Diego to Allentown that include hotel bookings?

    Yes. In addition to deals on San Diego to Allentown flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from San Diego to Allentown?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from San Diego to Allentown.

  • Can I find deals for business class flights from San Diego to Allentown?

    Yes. Cheapflights offers flight deals from San Diego to Allentown by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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

    Currently, February is the cheapest month in which you can book a flight from San Diego to Allentown (average of $292). Flying from San Diego to Allentown in December is currently the most expensive (average of $395). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Top 3 airlines flying from San Diego to Allentown

Discover the top 3 airlines that operate flights from San Diego to Allentown. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$223Average$476FlexibilityNo cancel feeOn-time71%
DeltaCheapest$318Average$507FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$405Average$565FlexibilityNo cancel feeOn-time69%

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