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Allentown

$231+ 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 4/17. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — ABE
mar 31 — apr 71
tis 3/31
tis 4/7
1 adult, Economy
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Cheap 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 mars 1, 2026.

This American Airlines deal was found by Cheapflights users on 2/26. 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.
lör 5/309:57 am
SAN
-
ABE
1 stop10h 08m
American Airlines
tis 6/25:18 pm
ABE
-
SAN
1 stop9h 16m
American Airlines
Deal found 2/26$382
This Delta deal was found by Cheapflights users on 2/28. 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.
tis 3/311:16 am
SAN
-
ABE
1 stop8h 33m
Delta
tis 3/1712:56 pm
ABE
-
SAN
1 stop10h 49m
Delta
Deal found 2/28$410
This United Airlines deal was found by Cheapflights users on 2/26. 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.
lör 5/2310:40 pm
SAN
-
ABE
1 stop7h 58m
United Airlines
mån 6/12:23 pm
ABE
-
SAN
2 stops12h 31m
United Airlines
Deal found 2/26$416
This United Airlines deal was found by Cheapflights users on 2/27. 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.
lör 5/3010:40 pm
SAN
-
ABE
1 stop7h 58m
United Airlines
tis 6/22:23 pm
ABE
-
SAN
2 stops12h 31m
United Airlines
Deal found 2/27$434
This American Airlines deal was found by Cheapflights users on 2/28. 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.
tis 3/39:00 am
SAN
-
ABE
2 stops11h 31m
American Airlines
tis 3/1712:45 pm
ABE
-
SAN
1 stop11h 06m
American Airlines
Deal found 2/28$446
This United Airlines deal was found by Cheapflights users on 2/26. 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.
ons 4/2210:30 pm
SAN
-
ABE
1 stop8h 18m
United Airlines
lör 4/255:45 pm
ABE
-
SAN
2 stops18h 31m
United Airlines
Deal found 2/26$450
This American Airlines deal was found by Cheapflights users on 2/26. 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.
lör 5/231:19 pm
SAN
-
ABE
1 stop8h 02m
American Airlines
mån 6/15:18 pm
ABE
-
SAN
1 stop9h 16m
American Airlines
Deal found 2/26$453

Find 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 mars 1, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$382
(American Airlines)

One-way from

$231
(United Airlines)

Popular in

January

Cheapest in

October

Average price

$368
Provider with most accurate pricing for San Diego-Allentown-Bethlehem flight deals.
Search Deals
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. 18% potential increase in price ($106 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($20 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
Search Deals

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 mars 1, 2026.
Use the filters below to find and compare flights from San Diego to Allentown that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

San DiegoAllentown

SAN - ABE

SANABE

San Diego

lör 5/30

8:32 pm-9:38 am

2 stops10h 06m

Allentown-Bethlehem

tis 6/2

5:36 pm-10:34 pm

1 stop7h 58m

$434

San DiegoAllentown

SAN - ABE

SANABE

San Diego

ons 4/22

10:30 pm-9:48 am

1 stop8h 18m

Allentown-Bethlehem

lör 4/25

5:40 pm-9:16 am

2 stops18h 36m

$450

San DiegoAllentown

SAN - ABE

SANABE

San Diego

fre 4/17

7:14 pm-9:17 pm

2 stops23h 03m

$231

San DiegoAllentown

SAN - ABE

SANABE

San Diego

lör 3/7

6:30 am-5:12 pm

1 stop7h 42m

$390

San DiegoAllentown

SAN - ABE

SANABE

San Diego

sön 4/19

1:20 pm-9:48 am

3 stops17h 28m

$622

San DiegoAllentown

SAN - ABE

SANABE

San Diego

sön 4/5

10:30 pm-9:48 am

1 stop8h 18m

$666

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/26

Sorted by cheapest first

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 March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice 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 $182). 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.

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 mars 1, 2026.
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
7.9
Good
8,244 reviews

Boarding

8.1

Comfort

7.9

Food

7.2

Entertainment

7.8

Crew

8.5

Overall

7.9

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
7.9
Good
8,244 reviews
Delta
7.9
Good
8,244 reviews

Boarding

8.1

Comfort

7.9

Food

7.2

Entertainment

7.8

Crew

8.5

Overall

7.9

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
11,370 reviews
Delta
7.9
Good
8,244 reviews

Boarding

8.1

Comfort

7.9

Food

7.2

Entertainment

7.8

Crew

8.5

Overall

7.9

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 United Airlines fly from San Diego to Allentown in about 10h 06m. The time it takes to get you to your destination can typically vary by up to . Airlines will cover a distance of 2353 mi.

  • 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 $310 round trip. Users have found that Delta is 34% 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 $178 on Delta. Other airlines that offer cheap prices include United Airlines from $189 and American Airlines from $201 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, 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 $182). 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

Browse thousands of different options on Cheapflights for your next trip

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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 mars 1, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$308Average$475FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$310Average$486FlexibilityNo cancel feeOn-time71%

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