Frontier's UpFront Plus seats guarantee an empty middle seat for extra comfort on medium-haul flights.
Frontier's Discount Den offers low fares and Kids Fly Free, ideal for family travel savings.

Most accurate provider | Justfly.com 3 stars |
|---|---|
Most trusted provider | Justfly.com 3 stars |
Round-trip from | $238 (Frontier) |
One-way from | $103 (Mytrip) |
Popular in | December |
Cheapest in | August |
Average price | $562 |
Good round-trip deal | $486 or less |
Good one-way deal | $289 or less |
Fly from
Fly to
Route
Depart
Return
Price
Los AngelesPhiladelphia
LAX - PHL
LAXPHL
Los Angeles
Fri 1/9
12:33 am-8:01 pm
2 stops16h 28m
Philadelphia
Wed 1/21
1:40 pm-6:02 pm
3 stops31h 22m
Los AngelesPhiladelphia
LAX - PHL
LAXPHL
Los Angeles
Mon 1/12
6:10 am-5:25 pm
1 stop8h 15m
Philadelphia
Sat 1/17
4:15 pm-10:30 pm
1 stop9h 15m
Los AngelesPhiladelphia
LAX - PHL
LAXPHL
Los Angeles
Wed 2/4
8:45 am-10:00 pm
2 stops10h 15m
Philadelphia
Wed 2/11
5:00 pm-10:00 pm
1 stop8h 00m
Los AngelesPhiladelphia
LAX - PHL
LAXPHL
Los Angeles
Mon 1/12
6:10 am-5:25 pm
1 stop8h 15m
Philadelphia
Sat 5/9
12:25 pm-8:30 pm
2 stops11h 05m
Los AngelesPhiladelphia
LAX - PHL
LAXPHL
Los Angeles
Tue 12/30
9:41 am-5:30 pm
1 stop28h 49m
Philadelphia
Fri 1/2
5:10 am-7:38 am
2 stops29h 28m
Los AngelesPhiladelphia
LAX - PHL
LAXPHL
Los Angeles
Tue 2/24
8:45 pm-5:20 pm
1 stop17h 35m
Philadelphia
Tue 3/3
6:20 pm-6:52 pm
2 stops27h 32m
Los AngelesPhiladelphia
LAX - PHL
LAXPHL
Los Angeles
Sat 2/21
10:20 am-9:55 pm
2 stops8h 35m
Philadelphia
Mon 2/23
5:00 am-11:40 am
2 stops9h 40m
Los AngelesPhiladelphia
LAX - PHL
LAXPHL
Los Angeles
Fri 1/23
5:45 am-5:05 pm
2 stops8h 20m
Philadelphia
Mon 1/26
1:50 pm-9:25 pm
2 stops10h 35m
Los AngelesPhiladelphia
LAX - PHL
LAXPHL
Los Angeles
Wed 1/21
5:45 am-5:05 pm
2 stops8h 20m
Philadelphia
Mon 1/26
1:50 pm-9:25 pm
2 stops10h 35m
Los AngelesPhiladelphia
LAX - PHL
LAXPHL
Los Angeles
Sat 1/10
8:55 am-8:20 pm
2 stops8h 25m
Philadelphia
Sun 1/18
6:40 am-1:50 pm
2 stops10h 10m
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*2 stars | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
The price you pay for your flight from Los Angeles to Philadelphia may vary depending on when you book. For the best chance of a lower fare, look to book 40 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
Currently, November is the cheapest month in which you can book a flight from Los Angeles to Philadelphia (average of $107). Flying from Los Angeles to Philadelphia in December is currently the most expensive (average of $164). 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.
Unlike in the morning, when flights are generally more expensive, you can save up to 29% on flights from Los Angeles to Philadelphia by exploring options for tickets in the evening.
Travelers seeking maximum savings on their Los Angeles to Philadelphia 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.
About 13% of weekly flights between Los Angeles and Philadelphia have experienced delays in the past year, with the average delay time being 151 minutes.
Historically, flights departing in the evening are less likely to be delayed, whereas flights leaving in the early afternoon tend to experience delays more often.
Saturday tends to have the lowest number of delays on this route, whereas Friday has historically faced a higher average of delays compared to other days of the week.
Over the last year, Spirit Airlines have had the lowest number of delays on this route, with just 4% of flights being delayed.
Chicago (MDW) – chosen by Cheapflights users on 50% of 1-stop itineraries from Los Angeles to Philadelphia on Cheapflights.
Chicago (MDW) is the most affordable 1-stop option, with an average round-trip price of $471.
Flights via Chicago (MDW) have the shortest average one-way travel time for 1-stop routes: 6h 50m.
Flights via Chicago (MDW) offer the fastest connection on this route, with an average layover time of 1h 15m.
Entertainment
Food
Boarding
Comfort
Crew
Overall
Reviews
William Drew,Nov 2025
SJC - HNL
Entertainment
Food
Boarding
Comfort
Crew
Overall
Reviews
William Drew,Nov 2025
SJC - HNL
Entertainment
Food
Boarding
Comfort
Crew
Overall
Reviews
William Drew,Nov 2025
SJC - HNL
Entertainment
Food
Boarding
Comfort
Crew
Overall
Reviews
William Drew,Nov 2025
SJC - HNL
Entertainment
Food
Boarding
Comfort
Crew
Overall
Reviews
William Drew,Nov 2025
SJC - HNL
Entertainment
Food
Boarding
Comfort
Crew
Overall
Reviews
William Drew,Nov 2025
SJC - HNL
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$109 | Average$204 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$109 | Average$238 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$135 | Average$331 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$218 | Average$356 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$227 | Average$455 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$264 | Average$482 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$346 | Average$558 | FlexibilityNo cancel fee | On-time69% |