$110+ Cheap flights from Philadelphia to San Diego (PHL - SAN)
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 5/19. Fares are subject to change and may not be available on all flights or dates of travel.
Find cheap flights from Philadelphia to San Diego 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.Cheapflights Tip: The best prices from Philadelphia to San Diego are usually found in January or November, booked 79 days in advance, depart on a Tuesday or Wednesday and return on a Wednesday
Cheap flight deals from Philadelphia to San Diego
Discover tips and strategies to find the most affordable flight options for your journey from Philadelphia (PHL) to San Diego (SAN). 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 May 12, 2025.
Most accurate provider | CheapOair 3 stars |
|---|---|
Most trusted provider | CheapOair 3 stars |
Round-trip from | $266 (Mytrip) |
One-way from | $110 (Cheapflightsfares) |
Popular in | December |
Cheapest in | January |
Average price | $423 |
Good round-trip deal | $355 or less |
Good one-way deal | $198 or less |
Find flight deals from Philadelphia to San Diego
Cheapest flights from Philadelphia to San DiegoExplore the most affordable flight options available from Philadelphia to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 12, 2025.
Explore the most affordable flight options available from Philadelphia to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 12, 2025.
This Cheapflightsfares deal was found by Cheapflights users on 5/12. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This American Airlines deal was found by Cheapflights users on 5/12. 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.
This Kiwi.com deal was found by Cheapflights users on 5/12. 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.
This JetBlue deal was found by Cheapflights users on 5/11. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Delta deal was found by Cheapflights users on 5/12. 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.
This Kiwi.com deal was found by Cheapflights users on 5/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This United Airlines deal was found by Cheapflights users on 5/11. 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.
This Southwest deal was found by Cheapflights users on 5/11. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Cheapflights Fare Finder
Customize your flight search to find flights from Philadelphia to San Diego 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 May 12, 2025.
Use the filters below to find and compare flights from Philadelphia to San Diego that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
PhiladelphiaSan Diego
PHL - SAN
PHLSAN
Philadelphia
Thu 5/22
6:15 am-6:25 pm
1 stop15h 10m
San Diego
Sun 5/25
6:41 am-5:07 am
1 stop19h 26m
PhiladelphiaSan Diego
PHL - SAN
PHLSAN
Philadelphia
Tue 6/3
6:00 am-7:53 pm
2 stops16h 53m
San Diego
Tue 6/17
7:31 pm-5:44 am
1 stop7h 13m
PhiladelphiaSan Diego
PHL - SAN
PHLSAN
Philadelphia
Mon 6/2
6:55 pm-9:44 pm
Nonstop5h 49m
San Diego
Fri 6/6
10:44 pm-7:00 am
Nonstop5h 16m
PhiladelphiaSan Diego
PHL - SAN
PHLSAN
Philadelphia
Wed 7/2
10:15 am-7:53 pm
1 stop12h 38m
San Diego
Wed 7/16
8:29 pm-9:48 am
1 stop10h 19m
PhiladelphiaSan Diego
PHL - SAN
PHLSAN
Philadelphia
Sat 6/14
5:30 am-9:39 am
1 stop7h 09m
San Diego
Sat 6/14
7:10 pm-5:50 am
1 stop7h 40m
PhiladelphiaSan Diego
PHL - SAN
PHLSAN
Philadelphia
Tue 7/1
6:15 am-11:05 pm
1 stop19h 50m
San Diego
Tue 7/8
7:31 pm-5:44 am
1 stop7h 13m
PhiladelphiaSan Diego
PHL - SAN
PHLSAN
Philadelphia
Sat 6/7
2:50 pm-10:14 pm
2 stops10h 24m
San Diego
Tue 6/17
6:28 pm-5:22 am
1 stop7h 54m
PhiladelphiaSan Diego
PHL - SAN
PHLSAN
Philadelphia
Tue 7/22
3:20 pm-9:50 pm
1 stop9h 30m
San Diego
Tue 7/29
11:35 am-12:05 am
2 stops9h 30m
PhiladelphiaSan Diego
PHL - SAN
PHLSAN
Philadelphia
Mon 5/19
6:54 pm-11:58 pm
1 stop8h 04m
PhiladelphiaSan Diego
PHL - SAN
PHLSAN
Philadelphia
Tue 6/10
7:45 am-7:13 am
2 stops26h 28m
Compare providers for flights from Philadelphia to San Diego
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 Philadelphia to San Diego in May.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*2 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*2 stars | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*2 stars | |
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*2 stars |
- Most accurate provider: When it comes to deals on Philadelphia-San Diego flights, users find the pricing of CheapOair to be most consistent on Cheapflights vs. CheapOair Users can find the same prices on Philadelphia-San Diego flight deals on Cheapflights vs. CheapOair >95% of the time. Price accuracy is based on data collected from Philadelphia-San Diego flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Philadelphia-San Diego flights, Cheapflights users trust CheapOair the most. CheapOair 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 Philadelphia-San Diego 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 Philadelphia to San Diego
Have a flexible travel schedule? Discover the best time to fly to San Diego from Philadelphia with our price prediction graph.
Cheapflights Insights
Everything you need to know about your flight from Philadelphia to San Diego
How far ahead should I book a flight from Philadelphia to San Diego?
Use this chart to determine the optimal time to book a round-trip flight from Philadelphia to San Diego. Price data was last updated on May 9, 2025.
To ensure you get the cheapest price possible for a flight from Philadelphia to San Diego, you should look to book at least 79 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
What is the cheapest month to book a flight from Philadelphia to San Diego?
Currently, August is the cheapest month in which you can book a flight from Philadelphia to San Diego (average of $286). Flying from Philadelphia to San Diego in March is currently the most expensive (average of $366). 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.
What is the cheapest time of day to fly from PHL to SAN?
Find hourly flight availability from Philadelphia to San Diego. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated May 12, 2025.
A simple way to save on the total cost of your ticket is to fly from Philadelphia to San Diego at noon. If you’re flexible enough to do this you can expect to save up to 20% on your trip compared to booking a flight in the morning.
What is the cheapest day to fly from Philadelphia to San Diego?
Use this chart to determine the cheapest time to fly round-trip from Philadelphia to San Diego. Price data was last updated on May 11, 2025.
Travelers seeking maximum savings on their Philadelphia to San Diego flight should consider departing on Monday at noon when fares are most often at their lowest. Sunday mornings flights should be avoided if possible as fares are typically the most expensive at this time.
Weekly flight availability from Philadelphia to San Diego
Explore weekly flight availability from Philadelphia to San Diego. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated May 12, 2025.
The most flights from PHL to SAN are scheduled on a Monday (7 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (7 on average).
Rainfall in San Diego by month
Plan your trip to San Diego by taking into account the average rainfall totals by month.
In terms of precipitation, rainfall in San Diego ranges from 0.0 - 2.3 inches per month. February is typically the wettest month, when rainfall can reach 2.3 in. July is typically the driest time to visit San Diego when rainfall is around 0.0 in.
Temperature in San Diego by month
Plan your trip to San Diego by taking into account the average temperature totals by month.
If weather is an important factor for your trip to San Diego, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 71.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 57.2 F).
Reviews of airlines servicing San Diego
Get insights into the airlines that provide service to San Diego. 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 San Diego. Reviews last updated May 12, 2025.
Peruse reviews from past customers who have flown with Alaska Airlines, Southwest and Delta from Philadelphia to San Diego to help guide your decision. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
Food
Crew
Overall
Comfort
Boarding
Reviews
James,Apr 2025
LAX - SFO
Entertainment
Food
Crew
Overall
Comfort
Boarding
Reviews
James,Apr 2025
LAX - SFO
Entertainment
Food
Crew
Overall
Comfort
Boarding
Reviews
James,Apr 2025
LAX - SFO
Entertainment
Food
Crew
Overall
Comfort
Boarding
Reviews
James,Apr 2025
LAX - SFO
Entertainment
Food
Crew
Overall
Comfort
Boarding
Reviews
James,Apr 2025
LAX - SFO
Entertainment
Food
Crew
Overall
Comfort
Boarding
Reviews
James,Apr 2025
LAX - SFO
Related info for your journey
Find useful and relevant information for your journey from Philadelphia to San Diego. 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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Alternative routes for Philadelphia to San Diego
See prices for flight routes from nearby airports that may be better suited for you.
Top 6 airlines flying from Philadelphia to San Diego
Discover the top 6 airlines that operate flights from Philadelphia to San Diego. 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 May 12, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$142 | Average$243 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$146 | Average$226 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$158 | Average$386 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$197 | Average$355 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$292 | Average$491 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$293 | Average$466 | FlexibilityNo cancel fee | On-time71% |