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Allentown

$156+ 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 12/4. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — ABE
Nov 13 — Nov 201
Thu 11/13
Thu 11/20
1 adult, Economy
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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 October 14, 2025.

This Delta deal was found by Cheapflights users on 10/13. 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.
Sat 12/276:15 amSAN - ABE
1 stop8h 09mDelta
Sat 1/36:04 pmABE - SAN
1 stop8h 24mDelta
Deal found 10/13$789
This Delta deal was found by Cheapflights users on 10/13. 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.
Fri 12/266:15 amSAN - ABE
2 stops13h 31mDelta
Sat 1/36:04 pmABE - SAN
1 stop8h 24mDelta
Deal found 10/13$822
This Delta deal was found by Cheapflights users on 10/13. 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.
Fri 12/266:15 amSAN - ABE
2 stops13h 31mDelta
Sun 1/46:15 amABE - SAN
1 stop8h 48mDelta
Deal found 10/13$877
This American Airlines deal was found by Cheapflights users on 10/14. 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.
Mon 12/2211:55 amSAN - ABE
1 stop8h 34mAmerican Airlines
Fri 12/266:04 amABE - SAN
1 stop8h 01mAmerican Airlines
Deal found 10/14$913
This Delta deal was found by Cheapflights users on 10/13. 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.
Sat 12/276:15 amSAN - ABE
1 stop8h 09mDelta
Sun 1/46:15 amABE - SAN
1 stop8h 48mDelta
Deal found 10/13$932
This United Airlines deal was found by Cheapflights users on 10/14. 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.
Tue 12/234:45 pmSAN - ABE
1 stop20h 45mUnited Airlines
Sat 12/275:07 pmABE - SAN
1 stop8h 44mUnited Airlines
Deal found 10/14$1,030
This Mytrip deal was found by Cheapflights users on 10/14. 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.
Tue 12/235:50 pmSAN - ABE
2 stops24h 07mMultiple Airlines
Sat 12/272:54 pmABE - SAN
3 stops28h 50mMultiple Airlines
Deal found 10/14$1,357

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 October 14, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$428
(Delta)

One-way from

$171
(Kiwi.com)

Popular in

November

Cheapest in

March

Average price

$406
Provider with most accurate pricing for San Diego-Allentown-Bethlehem flight deals.
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Provider most trusted by Cheapflights users for San Diego-Allentown-Bethlehem flights.
Search Deals
From San Diego to Allentown-Bethlehem
Search Deals
One-way flight from San Diego to Allentown-Bethlehem
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($67 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($15 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
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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 October 14, 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

Sat 2/21

6:20 am-5:13 pm

1 stop7h 53m

Allentown-Bethlehem

Tue 2/24

5:40 pm-11:11 pm

1 stop8h 31m

$428

San DiegoAllentown

SAN - ABE

SANABE

San Diego

Sat 2/21

7:00 am-9:47 pm

1 stop11h 47m

Allentown-Bethlehem

Tue 2/24

10:33 am-11:41 pm

2 stops16h 08m

$527

San DiegoAllentown

SAN - ABE

SANABE

San Diego

Sat 12/27

6:15 am-5:24 pm

1 stop8h 09m

Allentown-Bethlehem

Sat 1/3

6:04 pm-11:28 pm

1 stop8h 24m

$789

San DiegoAllentown

SAN - ABE

SANABE

San Diego

Fri 12/26

6:15 am-10:46 pm

2 stops13h 31m

Allentown-Bethlehem

Sat 1/3

6:04 pm-11:28 pm

1 stop8h 24m

$822

San DiegoAllentown

SAN - ABE

SANABE

San Diego

Fri 12/26

6:15 am-10:46 pm

2 stops13h 31m

Allentown-Bethlehem

Sun 1/4

6:15 am-12:03 pm

1 stop8h 48m

$877

San DiegoAllentown

SAN - ABE

SANABE

San Diego

Mon 12/22

11:55 am-11:29 pm

1 stop8h 34m

Allentown-Bethlehem

Fri 12/26

6:04 am-11:05 am

1 stop8h 01m

$913

San DiegoAllentown

SAN - ABE

SANABE

San Diego

Sat 12/27

6:15 am-5:24 pm

1 stop8h 09m

Allentown-Bethlehem

Sun 1/4

6:15 am-12:03 pm

1 stop8h 48m

$932

San DiegoAllentown

SAN - ABE

SANABE

San Diego

Thu 12/4

4:33 pm-10:24 pm

2 stops26h 51m

$156

San DiegoAllentown

SAN - ABE

SANABE

San Diego

Wed 12/3

2:28 pm-8:36 pm

3 stops27h 08m

$174

San DiegoAllentown

SAN - ABE

SANABE

San Diego

Thu 12/11

4:52 pm-10:24 pm

3 stops26h 32m

$176

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/14

Showing 1-10 of 17 results
1
2

Compare providers for flights from San Diego to Allentown

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from San Diego to Allentown in October.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on San Diego-Allentown flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on San Diego-Allentown flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from San Diego-Allentown flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on San Diego-Allentown flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for San Diego-Allentown flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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, June is the cheapest month in which you can book a flight from San Diego to Allentown (average of $78). Flying from San Diego to Allentown in January is currently the most expensive (average of $194). 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.

How much does it cost to fly round-trip from San Diego to Allentown?

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 October 14, 2025.
Read reviews from past customers who have flown Delta and American Airlines from San Diego to Allentown. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,975 reviews

Food

7.3

Entertainment

7.9

Boarding

8.2

Crew

8.5

Comfort

7.9

Overall

8.0

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
7,975 reviews
Delta
8.0
Very good
7,975 reviews

Food

7.3

Entertainment

7.9

Boarding

8.2

Crew

8.5

Comfort

7.9

Overall

8.0

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
11,042 reviews
Delta
8.0
Very good
7,975 reviews

Food

7.3

Entertainment

7.9

Boarding

8.2

Crew

8.5

Comfort

7.9

Overall

8.0

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.

  • How long is the flight from San Diego to Allentown?

    Airlines like Delta and United Airlines fly from San Diego to Allentown in about 7h 53m. The time it takes to get you to your destination can typically vary by up to 3h 54m. Airlines will cover a distance of 2353 mi. This flight may include one or multiple stops.

  • 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 $308. Another option worth looking into is American Airlines, starting at $382 round trip. Users have found that Delta is 35% cheaper than the other options available to this destination.

  • 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, June is the cheapest month in which you can book a flight from San Diego to Allentown (average of $78). Flying from San Diego to Allentown in January is currently the most expensive (average of $194). 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 2 airlines flying from San Diego to Allentown

Discover the top 2 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 October 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$308Average$421FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$382Average$555FlexibilityNo cancel feeOn-time71%

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