Cheap flight tickets from Allentown to San Diego

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Find the cheapest month to fly from Allentown to San Diego

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Allentown to San Diego flights are currently cheapest in July.

Alternative Allentown to San Diego routes

Looking for the cheapest, fastest or easiest route from Allentown to San Diego? You could fly into the following airports instead.

Allentown to San Diego: Flight information

The things to know before you go.
Cheapest flight foundRM1,008
Cheapest month to flyJuly

Finding cheap flights from Allentown to San Diego: Frequently asked questions

There are 2 airports in San Diego: San Diego International and McClellan-Palomar.
The best price we found for a return flight from Allentown to San Diego is RM1,459. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from Allentown to San Diego. But we found flights with one or more stops from RM1,459.
As of May 2026, there are no flights flying from Allentown to San Diego.
The cheapest month to fly from Allentown to San Diego is usually August.
If you're flying from Allentown Airport, the cheapest airport near San Diego is San Diego International – which is 4.1 km away from the centre of San Diego. We've found flights into this airport from RM1,459.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Allentown Airport to San Diego on Saturday, 22 August 2026.
No airlines currently offer direct flights between Allentown Airport and San Diego. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to San Diego but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to San Diego is around 40 days in advance, so don’t leave your flight to the last minute.
In May, the average temperature is usually around 17°C. August is typically the warmest month in San Diego, when it usually averages around 28°C. You can expect the least rain in June. The coldest month is December, with temperatures averaging 10°C. The rainiest month is February.
Currently, United offers the cheapest flight tickets to San Diego.

Flying from Lehigh Valley International Airport (ABE) to San Diego: what you need to know

  • San Diego is three hours behind Allentown, where Lehigh Valley International Airport is located. San Diego runs on the UTC-8 timezone.

  • Give yourself plenty of time to catch your ABE to San Diego flight. A good rule of thumb is to arrive at least two hours before international departures and an hour ahead for domestic flights.

  • During popular months like July, you'll want to get to the airport even earlier. Plan to arrive two hours before a domestic departure and four hours ahead for an international flight whenever you're flying during high season in general.

  • ABE is about 6 kilometres from central Allentown. If you're catching a taxi, driving or ride-sharing from the centre, it'll take you 20 minutes or so to get there, depending on the traffic. If you're taking public transport, expect the journey time to be around 45 minutes.

  • Want an easy start to your holiday? Stay near ABE. Whether you have an early flight from Lehigh Valley International Airport to San Diego or just don't like being rushed, these hotels are all about convenience:

  • When it comes to the on-time performance of Lehigh Valley International Airport, data shows 78% of flights arrive within the expected time frame.

  • ABE is located at 3311 Airport Road.

How to find the cheapest flights from Lehigh Valley International Airport (ABE) to San Diego

  • The best price we've seen for a one-way Lehigh Valley International Airport to San Diego flight is RM1,008. The cheapest price for a return flight is RM1,459. Remember fares may change due to demand at the time of booking.

  • Don't leave things to the last minute. You're more likely to land cheap flights from ABE to San Diego if you book early. Airlines often have some excellent early bird discounts.

  • Scoring cheap tickets from Lehigh Valley International Airport to San Diego is more likely if you're flexible with your trip dates. Try using the 'Whole month' function to get the lowest fares throughout the month and pick up an incredible deal.

  • You don't need to check back in every day to see if fares have dropped when you set up a Price Alert. We'll update you the moment there's an even better deal on cheap flights from ABE to San Diego.

  • Tailor your trip with filters. Select your ideal arrival and departure times, airlines and total journey duration. You can also sort your results by 'Fastest,' 'Cheapest' or 'Best' flights from Lehigh Valley International Airport to San Diego.

Airports in San Diego

San Diego International Airport (SAN)

  • San Diego International Airport (SAN) to central San Diego takes around 15 minutes by car. The centre is roughly 5 kilometres away.

  • It'll take around 25 minutes to get there using public transport.

  • If you have a late flight from Lehigh Valley International Airport to San Diego, few things beat the convenience of staying close to the terminal. Grab your luggage from the carousel and then be showered and sleeping not long after at one of these hotels near SAN:

  • For the best deal, book your ride from San Diego International Airport around two weeks ahead of your flight from ABE to San Diego.

  • The street address for SAN is N Harbour Dr.

McClellan-Palomar Airport (CLD)

  • If you're staying in central San Diego (or just want to explore straight away), the city is around 48 kilometres from McClellan-Palomar Airport (CLD). Look for any information desks to get directions after hopping off your flight from Lehigh Valley International Airport to San Diego.

  • You'll find some comfortable places to call home for the night near CLD. Kick back and get cosy after your ABE to San Diego flight at any of these well-located options:

  • Usually, the earlier you book, the better the deals and selection of vehicles. Reserve your ride from CLD the moment you know your dates.

Best time to go to San Diego

  • July is the most popular month for flights from Lehigh Valley International Airport to San Diego. To avoid the crowds, visit San Diego in December.

  • The warmest month in San Diego is August, with temperatures ranging between 16ºC (61ºF) and 27ºC (81ºF). Lock in your Lehigh Valley International Airport to San Diego plane ticket then if that's your idea of comfortable weather.

  • February has average temperatures of between 8ºC (46ºF) and 22ºC (72ºF). Search for a cheap ticket from ABE to San Diego around that time if you like travelling in cooler conditions.

More about San Diego

  • After booking your flight from Lehigh Valley International Airport to San Diego, choose a hotel that puts you right where the action is. Make one of these accommodation options your base for exploring San Diego:

  • There are so many things to do and see in this city it can be difficult to know where to begin. San Diego Balboa Park, San Diego Zoo and USS Midway Museum are popular attractions which should be on any good San Diego itinerary.

Explore more of the United States

  • Los Angeles is just one of the many cities in the United States waiting to be explored once you've taken in the sights of San Diego. Around 177 kilometres away to the northwest, check out popular attractions including Hollywood Sign, Universal Studios Hollywood and Hollywood Bowl.

  • Around 483 kilometres east of San Diego, Phoenix is another essential stop in the United States. Get a taste of what this destination has to offer at Camelback Mountain, Yayoi Kusama Fireflies Infinity Mirror Room and Heard Museum.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.