$228+ 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 5/25. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — ABE
May 10 — May 171
Round-trip
1 adult, Economy
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Find cheap flights from San Diego to Allentown with Cheapflights
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Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Best
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Cheapest flights from San Diego to AllentownExplore 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 April 10, 2026.
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 April 10, 2026.
This Delta deal was found by Cheapflights users on 4/8. 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 9/210:55 am
SAN
- ABE
1 stop9h 01m
Delta
Mon 9/75:40 pm
ABE
- SAN
1 stop8h 04m
Delta
Deal found 4/8![Delta logo]()
$420
This American Airlines deal was found by Cheapflights users on 4/8. 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.
Sat 5/306:15 am
SAN
- ABE
1 stop7h 04m
American Airlines
Tue 6/25:06 pm
ABE
- SAN
1 stop9h 33m
American Airlines
Deal found 4/8![American Airlines logo]()
$451
This Delta deal was found by Cheapflights users on 4/8. 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 5/296:15 am
SAN
- ABE
1 stop8h 13m
Delta
Mon 6/16:15 pm
ABE
- SAN
1 stop8h 12m
Delta
Deal found 4/8![Delta logo]()
$488
This American Airlines deal was found by Cheapflights users on 4/6. 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 9/29:45 am
SAN
- ABE
2 stops9h 50m
American Airlines
Mon 9/76:00 am
ABE
- SAN
1 stop7h 39m
American Airlines
Deal found 4/6![American Airlines logo]()
$493
This United Airlines deal was found by Cheapflights users on 4/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/308:32 pm
SAN
- ABE
2 stops10h 06m
United Airlines
Tue 6/25:36 pm
ABE
- SAN
1 stop7h 58m
United Airlines
Deal found 4/10![United Airlines logo]()
$504
This United Airlines deal was found by Cheapflights users on 4/8. 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 5/2610:40 pm
SAN
- ABE
1 stop7h 58m
United Airlines
Tue 6/25:36 pm
ABE
- SAN
1 stop7h 58m
United Airlines
Deal found 4/8![United Airlines logo]()
$519
This American Airlines deal was found by Cheapflights users on 4/8. 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.
Sat 6/69:50 am
SAN
- ABE
2 stops11h 31m
American Airlines
Wed 6/175:06 pm
ABE
- SAN
1 stop9h 33m
American Airlines
Deal found 4/8![American Airlines logo]()
$536
Best flights from San Diego to AllentownDiscover carefully curated flight deals from San Diego to Allentown that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 10, 2026.
Discover carefully curated flight deals from San Diego to Allentown that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 10, 2026.
This Delta deal was found by Cheapflights users on 4/5. 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 9/210:55 am
SAN
- ABE
1 stop9h 01m
Delta
Mon 9/75:40 pm
ABE
- SAN
1 stop8h 04m
Delta
Deal found 4/5![Delta logo]()
$434
This American Airlines deal was found by Cheapflights users on 4/7. 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.
Sat 5/306:15 am
SAN
- ABE
1 stop7h 04m
American Airlines
Tue 6/25:06 pm
ABE
- SAN
1 stop9h 33m
American Airlines
Deal found 4/7![American Airlines logo]()
$451
This United Airlines deal was found by Cheapflights users on 4/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/308:32 pm
SAN
- ABE
2 stops10h 06m
United Airlines
Tue 6/25:36 pm
ABE
- SAN
1 stop7h 58m
United Airlines
Deal found 4/10![United Airlines logo]()
$504
This American Airlines deal was found by Cheapflights users on 4/5. 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 9/29:45 am
SAN
- ABE
2 stops9h 50m
American Airlines
Mon 9/71:56 pm
ABE
- SAN
1 stop7h 44m
American Airlines
Deal found 4/5![American Airlines logo]()
$493
This United Airlines deal was found by Cheapflights users on 4/8. 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 5/2610:40 pm
SAN
- ABE
1 stop7h 58m
United Airlines
Wed 6/35:36 pm
ABE
- SAN
1 stop7h 58m
United Airlines
Deal found 4/8![United Airlines logo]()
$519
This United Airlines deal was found by Cheapflights users on 4/8. 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.
Wed 5/278:32 pm
SAN
- ABE
2 stops10h 06m
United Airlines
Tue 6/22:23 pm
ABE
- SAN
2 stops12h 31m
United Airlines
Deal found 4/8![United Airlines logo]()
$529
Last-minute flights from San Diego to AllentownDiscover last-minute flight deals from San Diego to Allentown. Data last updated April 10, 2026 and is based on user searches.
Discover last-minute flight deals from San Diego to Allentown. Data last updated April 10, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 4/8. 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 5/2610:40 pm
SAN
- ABE
1 stop7h 58m
United Airlines
Tue 6/25:36 pm
ABE
- SAN
1 stop7h 58m
United Airlines
Deal found 4/8![United Airlines logo]()
$519
This Delta deal was found by Cheapflights users on 4/8. 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.
Tue 5/266:15 am
SAN
- ABE
1 stop8h 13m
Delta
Mon 6/16:15 pm
ABE
- SAN
1 stop8h 12m
Delta
Deal found 4/8![Delta logo]()
$567
This Delta deal was found by Cheapflights users on 4/8. 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 5/276:15 am
SAN
- ABE
1 stop8h 13m
Delta
Mon 6/16:15 pm
ABE
- SAN
1 stop8h 12m
Delta
Deal found 4/8![Delta logo]()
$570
This United Airlines deal was found by Cheapflights users on 4/8. 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.
Thu 5/2810:40 pm
SAN
- ABE
1 stop7h 58m
United Airlines
Wed 6/35:36 pm
ABE
- SAN
1 stop7h 58m
United Airlines
Deal found 4/8![United Airlines logo]()
$549
This Delta deal was found by Cheapflights users on 4/8. 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.
Thu 5/286:15 am
SAN
- ABE
1 stop8h 13m
Delta
Mon 6/16:15 pm
ABE
- SAN
1 stop8h 12m
Delta
Deal found 4/8![Delta logo]()
$623
This Delta deal was found by Cheapflights users on 4/8. 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 5/296:15 am
SAN
- ABE
1 stop8h 13m
Delta
Mon 6/16:15 pm
ABE
- SAN
1 stop8h 12m
Delta
Deal found 4/8![Delta logo]()
$488
This American Airlines deal was found by Cheapflights users on 4/8. 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.
Sat 5/306:15 am
SAN
- ABE
1 stop7h 04m
American Airlines
Tue 6/25:06 pm
ABE
- SAN
1 stop9h 33m
American Airlines
Deal found 4/8![American Airlines logo]()
$451
This United Airlines deal was found by Cheapflights users on 4/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/308:32 pm
SAN
- ABE
2 stops10h 06m
United Airlines
Tue 6/25:36 pm
ABE
- SAN
1 stop7h 58m
United Airlines
Deal found 4/10![United Airlines logo]()
$504
One-way flights from San Diego to AllentownSearch for one-way flight options from San Diego to Allentown. Find affordable one-way fares based on user searches. Data last updated April 10, 2026.
Search for one-way flight options from San Diego to Allentown. Find affordable one-way fares based on user searches. Data last updated April 10, 2026.
This Kiwi.com deal was found by Cheapflights users on 4/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/251:38 pm
SAN
- ABE
3 stops49h 27m
Multiple Airlines
Deal found 4/9![Multiple Airlines logo]()
$228
This Kiwi.com deal was found by Cheapflights users on 4/6. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/310:07 pm
SAN
- ABE
2 stops22h 32m
Multiple Airlines
Deal found 4/6![Multiple Airlines logo]()
$229
This Kiwi.com deal was found by Cheapflights users on 4/8. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/128:29 pm
SAN
- ABE
3 stops38h 27m
Multiple Airlines
Deal found 4/8![Multiple Airlines logo]()
$255
This Delta deal was found by Cheapflights users on 4/9. 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.
Sun 5/246:15 am
SAN
- ABE
1 stop8h 13m
Delta
Deal found 4/9![Delta logo]()
$278
This Delta deal was found by Cheapflights users on 4/7. 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 8/266:20 am
SAN
- ABE
1 stop7h 57m
Delta
Deal found 4/7![Delta logo]()
$288
This Kiwi.com deal was found by Cheapflights users on 4/8. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/712:54 pm
SAN
- ABE
2 stops53h 29m
Multiple Airlines
Deal found 4/8![Multiple Airlines logo]()
$291
This United Airlines deal was found by Cheapflights users on 4/8. 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 7/710:40 pm
SAN
- ABE
1 stop7h 58m
United Airlines
Deal found 4/8![United Airlines logo]()
$293
This Delta deal was found by Cheapflights users on 4/8. 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 4/1511:02 am
SAN
- ABE
1 stop8h 58m
Delta
Deal found 4/8![Delta logo]()
$300
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 April 10, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $420 (Delta) |
One-way from | $228 (Kiwi.com) |
Popular in | January |
Cheapest in | October |
Average price | $513 |
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 April 10, 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
Cheapest round-trip
San DiegoAllentown
SAN - ABE
SANABE
San Diego
Wed 9/2
10:55 am-10:56 pm
1 stop9h 01m
Allentown-Bethlehem
Mon 9/7
5:40 pm-10:44 pm
1 stop8h 04m
$434
San DiegoAllentown
SAN - ABE
SANABE
San Diego
Sat 5/30
6:15 am-4:19 pm
1 stop7h 04m
Allentown-Bethlehem
Tue 6/2
5:06 pm-11:39 pm
1 stop9h 33m
$451
San DiegoAllentown
SAN - ABE
SANABE
San Diego
Wed 9/2
9:45 am-10:35 pm
2 stops9h 50m
Allentown-Bethlehem
Mon 9/7
1:56 pm-6:40 pm
1 stop7h 44m
$493
San DiegoAllentown
SAN - ABE
SANABE
San Diego
Sat 5/30
8:32 pm-9:38 am
2 stops10h 06m
Allentown-Bethlehem
Tue 6/2
5:36 pm-10:34 pm
1 stop7h 58m
$504
Quickest round-trip
San DiegoAllentown
SAN - ABE
SANABE
San Diego
Tue 5/26
10:40 pm-9:38 am
1 stop7h 58m
Allentown-Bethlehem
Wed 6/3
5:36 pm-10:34 pm
1 stop7h 58m
$519
San DiegoAllentown
SAN - ABE
SANABE
San Diego
Wed 5/27
8:32 pm-9:38 am
2 stops10h 06m
Allentown-Bethlehem
Tue 6/2
2:23 pm-11:54 pm
2 stops12h 31m
$529
Cheapest one-way
San DiegoAllentown
SAN - ABE
SANABE
San Diego
Wed 5/27
6:15 am-5:28 pm
1 stop8h 13m
$288
San DiegoAllentown
SAN - ABE
SANABE
San Diego
Sat 5/30
6:15 am-5:28 pm
1 stop8h 13m
$311
San DiegoAllentown
SAN - ABE
SANABE
San Diego
Wed 8/26
7:41 pm-10:06 am
2 stops11h 25m
$343
Quickest one-way
San DiegoAllentown
SAN - ABE
SANABE
San Diego
Wed 6/3
10:40 pm-9:38 am
1 stop7h 58m
$348
Showing 1-10 of 14 resultsSorted 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 April.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- 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.
SAN-ABE
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 April is currently the most expensive (average of $198). 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 April 10, 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.
Comfort
7.9
Food
7.2
Crew
8.5
Boarding
8.1
Overall
7.9
Entertainment
7.8
Reviews
1 / 20
10.0
ExcellentMichael,Sep 2023
SMF - ATL
Comfort
7.9
Food
7.2
Crew
8.5
Boarding
8.1
Overall
7.9
Entertainment
7.8
Reviews
1 / 20
10.0
ExcellentMichael,Sep 2023
SMF - ATL
Comfort
7.9
Food
7.2
Crew
8.5
Boarding
8.1
Overall
7.9
Entertainment
7.8
Reviews
1 / 20
10.0
ExcellentMichael,Sep 2023
SMF - ATL
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.
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Other flights to Allentown
Explore flights to Allentown departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on April 10, 2026.
Alternative routes for San Diego to Allentown
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Complete your trip
Complete your trip to Allentown by adding a car rental and/or hotel reservation to your travel itinerary.
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Find flights from San Diego to Allentown, based on your preferred cabin class, be it economy, premium economy, business, or first class.
San Diego and Allentown flights
Browse other San Diego and Allentown flight options. Last updated on April 10, 2026.
Other flights from San Diego
Browse through other flights departing from San Diego. Flights are based on user searches made on Cheapflights and were last updated on April 10, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
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 April 10, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$308 | Average$475 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$310 | Average$495 | FlexibilityNo cancel fee | On-time71% |