$209 Cheap Flights from Allentown (ABE) to San Diego (SAN)

View $209 flight on Thu, Oct 30, 2025Opens in a new window

Popular airlines from Lehigh Valley Intl. Airport (ABE) to San Diego Intl. Airport (SAN)

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Cheap Flights from Allentown to San Diego (ABE-SAN)

Prices were available within the past 7 days and start at $209 for one-way flights and $289 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Thu, Oct 16 - Tue, Oct 21
ABE
Allentown
SAN
San Diego
$289 Roundtrip, found 5 hours ago
$289
Roundtrip
found 5 hours ago
Select American Airlines flight, departing Thu, Oct 16 from Allentown to San Diego, returning Tue, Oct 21, priced at $289 found 5 hours ago
American Airlines
Thu, Oct 16 - Tue, Oct 21
ABE
Allentown
SAN
San Diego
$299 Roundtrip, found 5 hours ago
$299
Roundtrip
found 5 hours ago
Select American Airlines flight, departing Thu, Oct 16 from Allentown to San Diego, returning Tue, Oct 21, priced at $299 found 5 hours ago
American Airlines
Sat, Feb 28 - Tue, Mar 3
ABE
Allentown
SAN
San Diego
$309 Roundtrip, found 3 days ago
$309
Roundtrip
found 3 days ago
Select American Airlines flight, departing Sat, Feb 28 from Allentown to San Diego, returning Tue, Mar 3, priced at $309 found 3 days ago
Delta
Tue, Oct 14 - Wed, Oct 22
ABE
Allentown
SAN
San Diego
$309 Roundtrip, found 5 hours ago
$309
Roundtrip
found 5 hours ago
Select Delta flight, departing Tue, Oct 14 from Allentown to San Diego, returning Wed, Oct 22, priced at $309 found 5 hours ago
United
Sat, Feb 28 - Tue, Mar 3
ABE
Allentown
SAN
San Diego
$309 Roundtrip, found 3 days ago
$309
Roundtrip
found 3 days ago
Select United flight, departing Sat, Feb 28 from Allentown to San Diego, returning Tue, Mar 3, priced at $309 found 3 days ago
American Airlines
Tue, Oct 7 - Mon, Oct 13
ABE
Allentown
SAN
San Diego
$313 Roundtrip, found 6 days ago
$313
Roundtrip
found 6 days ago
Select American Airlines flight, departing Tue, Oct 7 from Allentown to San Diego, returning Mon, Oct 13, priced at $313 found 6 days ago
United
Sat, Feb 28 - Tue, Mar 3
ABE
Allentown
SAN
San Diego
$314 Roundtrip, found 3 days ago
$314
Roundtrip
found 3 days ago
Select United flight, departing Sat, Feb 28 from Allentown to San Diego, returning Tue, Mar 3, priced at $314 found 3 days ago
American Airlines
Wed, Oct 1 - Wed, Oct 8
ABE
Allentown
SAN
San Diego
$319 Roundtrip, found 4 hours ago
$319
Roundtrip
found 4 hours ago
Select American Airlines flight, departing Wed, Oct 1 from Allentown to San Diego, returning Wed, Oct 8, priced at $319 found 4 hours ago
American Airlines
Tue, Oct 7 - Mon, Oct 13
ABE
Allentown
SAN
San Diego
$323 Roundtrip, found 6 days ago
$323
Roundtrip
found 6 days ago
Select American Airlines flight, departing Tue, Oct 7 from Allentown to San Diego, returning Mon, Oct 13, priced at $323 found 6 days ago
United
Sat, Feb 28 - Tue, Mar 3
ABE
Allentown
SAN
San Diego
$328 Roundtrip, found 3 days ago
$328
Roundtrip
found 3 days ago
Select United flight, departing Sat, Feb 28 from Allentown to San Diego, returning Tue, Mar 3, priced at $328 found 3 days ago

Find the cheapest month to fly from Allentown (ABE) to San Diego (SAN)

July is typically the cheapest month to fly

From $283 - $551 per traveler.

Frequently asked questions

How much does a flight from Lehigh Valley Intl. Airport (ABE) to San Diego Intl. Airport (SAN) cost?
Secure a cheap one-way flight from $209 or cheap return flight from $289 from Lehigh Valley Intl. Airport (ABE) to San Diego Intl. Airport (SAN) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Lehigh Valley Intl. Airport (ABE) to San Diego Intl. Airport (SAN)?
October is the most affordable month to fly from ABE to SAN. Timing your trip outside of the busy season is often the key to finding better deals on flights.
Which airlines fly direct from Lehigh Valley Intl. Airport (ABE) to San Diego Intl. Airport (SAN)?
Direct flights aren't available from Allentown, PA (ABE-Lehigh Valley Intl.) to San Diego Intl. Airport (SAN). However, you'll find other airports offering nonstop flights. Begin your journey at Philadelphia Intl. Airport (PHL) and head straight to San Diego without layovers.
What is the cheapest airline that flies from Lehigh Valley Intl. Airport (ABE) to San Diego Intl. Airport (SAN)?
To find the cheapest airline that'll fly you from ABE to SAN, use Expedia's filter tool. Customize your search based on your travel style, such as preferred carriers and flight duration. You can then sort your results by "Price (lowest to highest)" to list the most affordable options first.
How many flights per day from Lehigh Valley Intl. Airport (ABE) to San Diego Intl. Airport (SAN)?
You'll have to catch a flight with a layover when traveling from Lehigh Valley Intl. Airport (ABE) to San Diego Intl. Airport (SAN). Direct flights don't operate daily on this route. However, simply filter your search to include one or more stops to discover an option that works for you.
What day of the week has the most flights from ABE to SAN?
Generally you'll find the largest variety of flight choices on a Friday. Tuesdays are often the quietest.* But this can vary depending on the time of year, carrier and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Lehigh Valley Intl. Airport (ABE) to San Diego Intl. Airport (SAN)?
To reach San Diego Intl. Airport (SAN) on schedule, pick a flight that takes off from Lehigh Valley Intl. Airport (ABE) before 3 PM. The chance of cancellations is 22% higher, on average, for departures after this hour.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Lehigh Valley Intl. Airport (ABE) to San Diego Intl. Airport (SAN) last-minute?
Holding off until just before your trip to book a flight from ABE to SAN generally means paying more. While you might find some last-minute deals, there's no guarantee. Keep your travel schedule open to maximize your chances of scoring a bargain.
Is it cheaper to book an ABE to SAN flight and hotel package?
You'll typically save money by securing an ABE to SAN flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's easy to manage everything in one place. Once you've chosen your ideal accommodations and flights, consider adding extras like activities, tours and car rentals.
Can I cancel or change the date of my flight from Lehigh Valley Intl. Airport (ABE) to San Diego Intl. Airport (SAN)?
If you booked your ABE to SAN flight in the last 24 hours, you may be able to cancel or modify it without any fees. Depending on the airline and the ticket type you purchased, additional charges may apply for changes after that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, go to our Customer Service portal for more information.

Travel information

Travel information

Origin airport
Lehigh Valley Intl.
Destination airport
San Diego Intl.
Airlines serving
American Airlines, Delta, United
Roundtrip price
$289
Distance
2354 mi

Book with confidence

Book with confidence

Allentown to San Diego Flights

The cheapest times to fly from Allentown to San Diego

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Allentown to San Diego are during the month of October. You can find some of the cheapest flights from Allentown to San Diego with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Allentown to San Diego

Sunday is one of the best days to book for cheap flights from Allentown to San Diego: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Allentown to San Diego

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Allentown to San Diego in 2025. You can also book with separate airlines for your outbound and return journeys, from $209 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Allentown to San Diego flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Allentown to San Diego airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Allentown to San Diego Flights

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*Available to One Key members.