$239+ Cheap flights from San Diego to Allentown (SAN - ABE)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/12. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — ABE
Oct 24 — Oct 311
Round-trip
1 adult, Economy
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Find cheap flights from San Diego to Allentown with Cheapflights
1. Tell us where you want to go
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
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from San Diego to Allentown
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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 September 24, 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 September 24, 2026.
This Delta deal was found by Cheapflights users on 9/24. 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 12/46:20 am -
1 stop7h 53m
Mon 12/75:58 pm -
1 stop8h 40m
Deal found 9/24![Delta logo]()
$399
This United Airlines deal was found by Cheapflights users on 9/21. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/1610:30 pm -
1 stop8h 07m
Wed 10/216:20 am -
2 stops10h 24m
Deal found 9/21![United Airlines logo]()
$404
This Delta deal was found by Cheapflights users on 9/23. 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 10/207:59 pm -
2 stops13h 06m
Tue 11/32:30 pm -
2 stops11h 10m
Deal found 9/23![Delta logo]()
$409
This Delta deal was found by Cheapflights users on 9/23. 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.
Wed 10/216:15 am -
2 stops13h 04m
Wed 11/46:39 am -
1 stop7h 34m
Deal found 9/23![Delta logo]()
$474
This American Airlines deal was found by Cheapflights users on 9/23. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2010:06 am -
1 stop9h 06m
Tue 11/312:55 pm -
1 stop10h 50m
Deal found 9/23![American Airlines logo]()
$516
This Delta deal was found by Cheapflights users on 9/20. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/226:20 am -
2 stops13h 17m
Mon 1/111:00 pm -
2 stops11h 52m
Deal found 9/20![Delta logo]()
$519
This Delta deal was found by Cheapflights users on 9/23. 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.
Thu 11/127:42 pm -
2 stops13h 22m
Mon 11/166:00 pm -
1 stop8h 32m
Deal found 9/23![Delta logo]()
$524
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 September 24, 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 September 24, 2026.
This Delta deal was found by Cheapflights users on 9/23. 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.
Wed 10/216:15 am -
2 stops13h 04m
Wed 11/46:39 am -
1 stop7h 34m
Deal found 9/23![Delta logo]()
$474
This United Airlines deal was found by Cheapflights users on 9/19. 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 10/1610:30 pm -
1 stop8h 07m
Wed 10/2110:37 am -
2 stops12h 31m
Deal found 9/19![United Airlines logo]()
$480
This Delta deal was found by Cheapflights users on 9/20. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/226:20 am -
2 stops13h 17m
Mon 1/111:00 pm -
2 stops11h 52m
Deal found 9/20![Delta logo]()
$519
This United Airlines deal was found by Cheapflights users on 9/19. 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 11/76:50 am -
1 stop7h 06m
Tue 11/105:36 pm -
1 stop8h 04m
Deal found 9/19![United Airlines logo]()
$529
This United Airlines deal was found by Cheapflights users on 9/23. 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.
Mon 10/1910:30 pm -
1 stop8h 05m
Tue 11/36:15 am -
1 stop8h 12m
Deal found 9/23![United Airlines logo]()
$605
This Delta deal was found by Cheapflights users on 9/21. 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.
Fri 10/1610:00 pm -
2 stops11h 05m
Sun 10/181:00 pm -
1 stop9h 36m
Deal found 9/21![Delta logo]()
$678
Last-minute flights from San Diego to AllentownDiscover last-minute flight deals from San Diego to Allentown. Data last updated September 24, 2026 and is based on user searches.
Discover last-minute flight deals from San Diego to Allentown. Data last updated September 24, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 9/23. 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.
Sat 9/2610:56 am -
1 stop8h 20m
Wed 9/306:25 am -
1 stop8h 00m
Deal found 9/23![Delta logo]()
$551
This United Airlines deal was found by Cheapflights users on 9/23. 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.
Sat 9/266:40 am -
1 stop7h 28m
Wed 9/3010:37 am -
2 stops12h 31m
Deal found 9/23![United Airlines logo]()
$556
This United Airlines deal was found by Cheapflights users on 9/21. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/1610:30 pm -
1 stop8h 07m
Wed 10/216:20 am -
2 stops10h 24m
Deal found 9/21![United Airlines logo]()
$404
This Delta deal was found by Cheapflights users on 9/23. 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 10/207:59 pm -
2 stops13h 06m
Tue 11/32:30 pm -
2 stops11h 10m
Deal found 9/23![Delta logo]()
$409
This American Airlines deal was found by Cheapflights users on 9/23. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2010:06 am -
1 stop9h 06m
Tue 11/312:55 pm -
1 stop10h 50m
Deal found 9/23![American Airlines logo]()
$516
This Delta deal was found by Cheapflights users on 9/23. 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.
Wed 10/216:15 am -
2 stops13h 04m
Wed 11/46:39 am -
1 stop7h 34m
Deal found 9/23![Delta logo]()
$474
This Delta deal was found by Cheapflights users on 9/23. 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.
Wed 10/216:15 am -
1 stop8h 01m
Tue 11/32:30 pm -
1 stop8h 06m
Deal found 9/23![Delta logo]()
$559
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 September 24, 2026.
Search for one-way flight options from San Diego to Allentown. Find affordable one-way fares based on user searches. Data last updated September 24, 2026.
This Kiwi.com deal was found by Cheapflights users on 9/21. 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 11/124:53 pm -
2 stops26h 46m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/21![Multiple Airlines logo]()
$239
This Kiwi.com deal was found by Cheapflights users on 9/21. 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.
Fri 12/256:22 pm -
2 stops24h 38m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/21![Multiple Airlines logo]()
$293
This Delta deal was found by Cheapflights users on 9/22. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/296:20 am -
1 stop8h 01m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/22![Delta logo]()
$335
This American Airlines deal was found by Cheapflights users on 9/21. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/2910:31 pm -
1 stop16h 41m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/21![American Airlines logo]()
$347
This Delta deal was found by Cheapflights users on 9/22. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/296:15 am -
1 stop8h 01m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/22![Delta logo]()
$356
This Kiwi.com deal was found by Cheapflights users on 9/21. 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.
Fri 1/298:37 pm -
3 stops38h 49m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/21![Multiple Airlines logo]()
$358
This United Airlines deal was found by Cheapflights users on 9/21. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/296:28 pm -
2 stops12h 02m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/21![United Airlines logo]()
$361
This Delta deal was found by Cheapflights users on 9/21. 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.
Thu 11/1210:59 am -
1 stop8h 28m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/21![Delta logo]()
$390
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 September 24, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $399 (Delta) |
One-way from | $239 (Kiwi.com) |
Popular in | January |
Cheapest in | October |
Average price | $572 |
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 7,457,451 searches. Data last updated September 24, 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 San Diego - ABE Allentown-Bethlehem
SANABE
San Diego
Tue 9/29
6:20 am-5:21 pm
1 stop8h 01m
Allentown-Bethlehem
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$335
San DiegoAllentown
SAN San Diego - ABE Allentown-Bethlehem
SANABE
San Diego
Thu 10/29
6:15 am-5:16 pm
1 stop8h 01m
Allentown-Bethlehem
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$356
San DiegoAllentown
SAN San Diego - ABE Allentown-Bethlehem
SANABE
San Diego
Thu 11/12
10:59 am-10:27 pm
1 stop8h 28m
Allentown-Bethlehem
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$390
San DiegoAllentown
SAN San Diego - ABE Allentown-Bethlehem
SANABE
San Diego
Fri 12/25
6:25 am-10:00 pm
3 stops36h 35m
Allentown-Bethlehem
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$409
Quickest round-trip
San DiegoAllentown
SAN San Diego - ABE Allentown-Bethlehem
SANABE
San Diego
Wed 11/25
6:50 am-4:56 pm
1 stop7h 06m
Allentown-Bethlehem
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$443
San DiegoAllentown
SAN San Diego - ABE Allentown-Bethlehem
SANABE
San Diego
Wed 10/21
6:15 am-10:19 pm
2 stops13h 04m
Allentown-Bethlehem
Wed 11/4
6:39 am-11:13 am
1 stop7h 34m
$474
San DiegoAllentown
SAN San Diego - ABE Allentown-Bethlehem
SANABE
San Diego
Fri 10/16
10:30 pm-9:37 am
1 stop8h 07m
Allentown-Bethlehem
Wed 10/21
10:37 am-8:08 pm
2 stops12h 31m
$480
San DiegoAllentown
SAN San Diego - ABE Allentown-Bethlehem
SANABE
San Diego
Sat 11/21
6:50 am-4:57 pm
1 stop7h 07m
Allentown-Bethlehem
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$514
San DiegoAllentown
SAN San Diego - ABE Allentown-Bethlehem
SANABE
San Diego
Tue 12/22
6:20 am-10:37 pm
2 stops13h 17m
Allentown-Bethlehem
Mon 1/11
1:00 pm-9:52 pm
2 stops11h 52m
$519
San DiegoAllentown
SAN San Diego - ABE Allentown-Bethlehem
SANABE
San Diego
Sat 11/7
6:50 am-4:56 pm
1 stop7h 06m
Allentown-Bethlehem
Tue 11/10
5:36 pm-10:40 pm
1 stop8h 04m
$529
Showing 1-10 of 12 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 September.
| 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 September 24, 2026.
Read reviews from past customers who have flown Delta,United Airlines, andAmerican 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.
Boarding
8.1
Comfort
7.8
Overall
7.8
Food
7.2
Crew
8.5
Entertainment
7.8
Reviews
1 / 20
10.0
ExcellentMichael,Sep 2023
SMF - ATL
Boarding
8.1
Comfort
7.8
Overall
7.8
Food
7.2
Crew
8.5
Entertainment
7.8
Reviews
1 / 20
10.0
ExcellentMichael,Sep 2023
SMF - ATL
Boarding
8.1
Comfort
7.8
Overall
7.8
Food
7.2
Crew
8.5
Entertainment
7.8
Reviews
1 / 20
10.0
ExcellentMichael,Sep 2023
SMF - ATL
Boarding
8.1
Comfort
7.8
Overall
7.8
Food
7.2
Crew
8.5
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 September 24, 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 September 24, 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 September 24, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
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 7,457,451 searches. Data last updated September 24, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$310 | Average$502 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$344 | Average$504 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$364 | Average$523 | FlexibilityNo cancel fee | On-timeN/A |