$210+ 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 10/29. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — ABE
Jul 25 — Aug 11
Round-trip
1 adult, Economy
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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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One-way
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 June 25, 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 June 25, 2026.
This United Airlines deal was found by Cheapflights users on 6/24. 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 7/1510:25 pm
SAN
- ABE
1 stop8h 33m
United Airlines
Sat 7/255:41 pm
ABE
- SAN
1 stop7h 53m
United Airlines
Deal found 6/24![United Airlines logo]()
$369
This Delta deal was found by Cheapflights users on 6/24. 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 10/237:30 pm
SAN
- ABE
2 stops13h 34m
Delta
Tue 10/276:30 am
ABE
- SAN
2 stops12h 36m
Delta
Deal found 6/24![Delta logo]()
$379
This Kiwi.com deal was found by Cheapflights users on 6/21. 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 7/1510:00 am
SAN
- ABE
2 stops28h 10m
Multiple Airlines
Fri 7/247:30 am
ABE
- SAN
1 stop28h 35m
Multiple Airlines
Deal found 6/21![Multiple Airlines logo]()
$381
This United Airlines deal was found by Cheapflights users on 6/25. 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 11/1210:40 pm
SAN
- ABE
1 stop8h 16m
United Airlines
Mon 11/165:32 pm
ABE
- SAN
1 stop7h 56m
United Airlines
Deal found 6/25![United Airlines logo]()
$396
This Delta deal was found by Cheapflights users on 6/24. 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 7/107:58 pm
SAN
- ABE
2 stops13h 12m
Delta
Fri 7/176:05 pm
ABE
- SAN
1 stop7h 52m
Delta
Deal found 6/24![Delta logo]()
$414
This Kiwi.com deal was found by Cheapflights users on 6/21. 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.
Thu 7/168:51 pm
SAN
- ABE
2 stops47h 45m
Multiple Airlines
Fri 7/247:30 am
ABE
- SAN
1 stop28h 35m
Multiple Airlines
Deal found 6/21![Multiple Airlines logo]()
$415
This Kiwi.com deal was found by Cheapflights users on 6/21. 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 7/1510:00 am
SAN
- ABE
2 stops28h 10m
Multiple Airlines
Mon 7/277:30 am
ABE
- SAN
1 stop28h 35m
Multiple Airlines
Deal found 6/21![Multiple Airlines logo]()
$417
This Delta deal was found by Cheapflights users on 6/24. 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 7/810:36 am
SAN
- ABE
1 stop9h 32m
Delta
Sun 7/196:30 am
ABE
- SAN
1 stop8h 04m
Delta
Deal found 6/24![Delta logo]()
$435
This Delta deal was found by Cheapflights users on 6/24. 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 7/86:15 am
SAN
- ABE
2 stops13h 53m
Delta
Fri 7/176:05 pm
ABE
- SAN
1 stop7h 52m
Delta
Deal found 6/24![Delta logo]()
$440
This Delta deal was found by Cheapflights users on 6/24. 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 7/1710:15 pm
SAN
- ABE
2 stops16h 10m
Delta
Tue 7/281:08 pm
ABE
- SAN
2 stops13h 34m
Delta
Deal found 6/24![Delta logo]()
$444
This Delta deal was found by Cheapflights users on 6/21. 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.
Mon 7/1310:15 pm
SAN
- ABE
2 stops11h 07m
Delta
Sat 7/2512:55 pm
ABE
- SAN
1 stop9h 40m
Delta
Deal found 6/21![Delta logo]()
$445
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 June 25, 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 June 25, 2026.
This United Airlines deal was found by Cheapflights users on 6/24. 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.
Fri 10/2310:30 pm
SAN
- ABE
1 stop8h 05m
United Airlines
Tue 10/275:32 pm
ABE
- SAN
1 stop7h 56m
United Airlines
Deal found 6/24![United Airlines logo]()
$369
This Delta deal was found by Cheapflights users on 6/24. 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 7/1710:15 pm
SAN
- ABE
2 stops16h 10m
Delta
Fri 7/246:05 pm
ABE
- SAN
1 stop7h 52m
Delta
Deal found 6/24![Delta logo]()
$463
This United Airlines deal was found by Cheapflights users on 6/24. 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 10/2810:40 pm
SAN
- ABE
1 stop8h 16m
United Airlines
Sat 10/315:32 pm
ABE
- SAN
1 stop7h 56m
United Airlines
Deal found 6/24![United Airlines logo]()
$479
This Delta deal was found by Cheapflights users on 6/21. 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 7/86:20 am
SAN
- ABE
2 stops13h 48m
Delta
Tue 7/146:30 am
ABE
- SAN
1 stop8h 04m
Delta
Deal found 6/21![Delta logo]()
$480
This United Airlines deal was found by Cheapflights users on 6/23. 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 12/810:30 pm
SAN
- ABE
1 stop8h 36m
United Airlines
Sat 12/125:36 pm
ABE
- SAN
1 stop7h 21m
United Airlines
Deal found 6/23![United Airlines logo]()
$479
This United Airlines deal was found by Cheapflights users on 6/24. 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 7/1410:25 pm
SAN
- ABE
1 stop8h 33m
United Airlines
Fri 7/245:41 pm
ABE
- SAN
1 stop7h 53m
United Airlines
Deal found 6/24![United Airlines logo]()
$559
Last-minute flights from San Diego to AllentownDiscover last-minute flight deals from San Diego to Allentown. Data last updated June 25, 2026 and is based on user searches.
Discover last-minute flight deals from San Diego to Allentown. Data last updated June 25, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 6/24. 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 7/810:36 am
SAN
- ABE
1 stop9h 32m
Delta
Mon 7/206:05 pm
ABE
- SAN
1 stop7h 52m
Delta
Deal found 6/24![Delta logo]()
$435
This Delta deal was found by Cheapflights users on 6/24. 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 7/86:15 am
SAN
- ABE
2 stops13h 53m
Delta
Fri 7/176:05 pm
ABE
- SAN
1 stop7h 52m
Delta
Deal found 6/24![Delta logo]()
$440
This Delta deal was found by Cheapflights users on 6/24. 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 7/107:58 pm
SAN
- ABE
2 stops13h 12m
Delta
Sun 7/196:30 am
ABE
- SAN
1 stop8h 04m
Delta
Deal found 6/24![Delta logo]()
$414
This Kiwi.com deal was found by Cheapflights users on 6/24. 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 7/104:12 pm
SAN
- ABE
2 stops28h 24m
Multiple Airlines
Fri 7/247:30 am
ABE
- SAN
1 stop28h 35m
Multiple Airlines
Deal found 6/24![Multiple Airlines logo]()
$449
This Delta deal was found by Cheapflights users on 6/21. 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.
Mon 7/1310:15 pm
SAN
- ABE
2 stops11h 07m
Delta
Sat 7/2512:55 pm
ABE
- SAN
1 stop9h 40m
Delta
Deal found 6/21![Delta logo]()
$445
This United Airlines deal was found by Cheapflights users on 6/24. 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 7/1510:25 pm
SAN
- ABE
1 stop8h 33m
United Airlines
Sat 7/255:41 pm
ABE
- SAN
1 stop7h 53m
United Airlines
Deal found 6/24![United Airlines logo]()
$369
This Kiwi.com deal was found by Cheapflights users on 6/21. 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 7/1510:00 am
SAN
- ABE
2 stops28h 10m
Multiple Airlines
Fri 7/247:30 am
ABE
- SAN
1 stop28h 35m
Multiple Airlines
Deal found 6/21![Multiple Airlines logo]()
$381
This Kiwi.com deal was found by Cheapflights users on 6/21. 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 7/1510:00 am
SAN
- ABE
2 stops28h 10m
Multiple Airlines
Mon 7/277:30 am
ABE
- SAN
1 stop28h 35m
Multiple Airlines
Deal found 6/21![Multiple Airlines logo]()
$417
This Kiwi.com deal was found by Cheapflights users on 6/21. 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.
Thu 7/168:51 pm
SAN
- ABE
2 stops47h 45m
Multiple Airlines
Fri 7/247:30 am
ABE
- SAN
1 stop28h 35m
Multiple Airlines
Deal found 6/21![Multiple Airlines logo]()
$415
This Kiwi.com deal was found by Cheapflights users on 6/21. 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.
Thu 7/168:51 pm
SAN
- ABE
2 stops47h 45m
Multiple Airlines
Mon 7/277:30 am
ABE
- SAN
1 stop28h 35m
Multiple Airlines
Deal found 6/21![Multiple Airlines logo]()
$451
This Delta deal was found by Cheapflights users on 6/24. 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 7/1710:15 pm
SAN
- ABE
2 stops16h 10m
Delta
Tue 7/281:08 pm
ABE
- SAN
2 stops13h 34m
Delta
Deal found 6/24![Delta logo]()
$444
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 June 25, 2026.
Search for one-way flight options from San Diego to Allentown. Find affordable one-way fares based on user searches. Data last updated June 25, 2026.
This Kiwi.com deal was found by Cheapflights users on 6/20. 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.
Thu 10/298:48 pm
SAN
- ABE
3 stops36h 46m
Multiple Airlines
Deal found 6/20![Multiple Airlines logo]()
$210
This Kiwi.com deal was found by Cheapflights users on 6/22. 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 7/223:03 pm
SAN
- ABE
2 stops19h 59m
Multiple Airlines
Deal found 6/22![Multiple Airlines logo]()
$218
This Kiwi.com deal was found by Cheapflights users on 6/20. 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 10/286:25 am
SAN
- ABE
3 stops23h 08m
Multiple Airlines
Deal found 6/20![Multiple Airlines logo]()
$239
This Kiwi.com deal was found by Cheapflights users on 6/23. 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.
Sun 7/196:25 am
SAN
- ABE
1 stop30h 23m
Multiple Airlines
Deal found 6/23![Multiple Airlines logo]()
$263
This Delta deal was found by Cheapflights users on 6/23. 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 8/256:15 am
SAN
- ABE
1 stop8h 08m
Delta
Deal found 6/23![Delta logo]()
$288
This Kiwi.com deal was found by Cheapflights users on 6/22. 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.
Thu 7/238:51 pm
SAN
- ABE
3 stops47h 45m
Multiple Airlines
Deal found 6/22![Multiple Airlines logo]()
$321
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 June 25, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $369 (United Airlines) |
One-way from | $210 (Kiwi.com) |
Popular in | January |
Cheapest in | October |
Average price | $472 |
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 25, 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
Fri 10/23
10:30 pm-9:35 am
1 stop8h 05m
Allentown-Bethlehem
Tue 10/27
5:32 pm-10:28 pm
1 stop7h 56m
$369
San DiegoAllentown
SAN - ABE
SANABE
San Diego
Fri 7/17
10:15 pm-5:25 pm
2 stops16h 10m
Allentown-Bethlehem
Fri 7/24
6:05 pm-10:57 pm
1 stop7h 52m
$463
San DiegoAllentown
SAN - ABE
SANABE
San Diego
Wed 10/28
10:40 pm-9:56 am
1 stop8h 16m
Allentown-Bethlehem
Sat 10/31
5:32 pm-10:28 pm
1 stop7h 56m
$479
Quickest round-trip
San DiegoAllentown
SAN - ABE
SANABE
San Diego
Tue 12/8
10:30 pm-10:06 am
1 stop8h 36m
Allentown-Bethlehem
Sat 12/12
5:36 pm-9:57 pm
1 stop7h 21m
$479
San DiegoAllentown
SAN - ABE
SANABE
San Diego
Wed 7/8
6:20 am-11:08 pm
2 stops13h 48m
Allentown-Bethlehem
Tue 7/14
6:30 am-11:34 am
1 stop8h 04m
$480
San DiegoAllentown
SAN - ABE
SANABE
San Diego
Tue 7/14
10:25 pm-9:58 am
1 stop8h 33m
Allentown-Bethlehem
Fri 7/24
5:41 pm-10:34 pm
1 stop7h 53m
$559
Cheapest one-way
San DiegoAllentown
SAN - ABE
SANABE
San Diego
Wed 10/28
6:25 am-8:33 am
3 stops23h 08m
$239
San DiegoAllentown
SAN - ABE
SANABE
San Diego
Thu 10/29
12:37 pm-8:06 pm
2 stops28h 29m
$253
San DiegoAllentown
SAN - ABE
SANABE
San Diego
Sat 8/29
6:15 am-5:23 pm
1 stop8h 08m
$331
Quickest one-way
San DiegoAllentown
SAN - ABE
SANABE
San Diego
Thu 10/29
11:58 am-10:12 pm
1 stop7h 14m
$331
Showing 1-10 of 17 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 June.
| 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
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 25, 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.
Crew
8.5
Entertainment
7.8
Food
7.2
Comfort
7.8
Overall
7.8
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentMichael,Sep 2023
SMF - ATL
Crew
8.5
Entertainment
7.8
Food
7.2
Comfort
7.8
Overall
7.8
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentMichael,Sep 2023
SMF - ATL
Crew
8.5
Entertainment
7.8
Food
7.2
Comfort
7.8
Overall
7.8
Boarding
8.1
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 June 25, 2026.
Alternative routes for San Diego to Allentown
See prices for flight routes from nearby airports that may be better suited for you.
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 June 25, 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 June 25, 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 June 25, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$305 | Average$450 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$310 | Average$497 | FlexibilityNo cancel fee | On-time71% |