
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $166 (Kiwi.com) |
One-way from | $92 (Kiwi.com) |
Popular in | December |
Cheapest in | July |
Average price | $323 |
Good round-trip deal | $309 or less |
Good one-way deal | $174 or less |
Fly from
Fly to
Route
Depart
Return
Price
PhiladelphiaDenver
PHL - DEN
PHLDEN
Philadelphia
Thu 4/9
8:25 pm-10:53 pm
Nonstop4h 28m
Denver Intl
Sat 4/11
6:00 am-4:39 pm
1 stop8h 39m
PhiladelphiaDenver
PHL - DEN
PHLDEN
Philadelphia
Sat 3/14
7:10 pm-11:04 pm
1 stop29h 54m
Denver Intl
Wed 4/1
11:56 pm-5:31 am
Nonstop3h 35m
PhiladelphiaDenver
PHL - DEN
PHLDEN
Philadelphia
Sat 3/14
7:10 pm-9:36 pm
Nonstop4h 26m
Denver Intl
Wed 4/1
7:05 am-12:37 pm
Nonstop3h 32m
PhiladelphiaDenver
PHL - DEN
PHLDEN
Philadelphia
Mon 2/16
8:23 pm-8:20 am
1 stop13h 57m
Denver Intl
Mon 3/16
11:59 pm-5:31 am
Nonstop3h 32m
PhiladelphiaDenver
PHL - DEN
PHLDEN
Philadelphia
Sat 3/14
3:30 pm-6:00 pm
Nonstop4h 30m
Denver Intl
Tue 3/17
5:57 pm-11:32 pm
Nonstop3h 35m
PhiladelphiaDenver
PHL - DEN
PHLDEN
Philadelphia
Fri 3/20
5:20 am-7:30 am
Nonstop4h 10m
Denver Intl
Wed 3/25
6:30 pm-11:50 pm
Nonstop3h 20m
PhiladelphiaDenver
PHL - DEN
PHLDEN
Philadelphia
Thu 4/2
5:20 am-7:30 am
Nonstop4h 10m
Denver Intl
Tue 4/7
6:10 pm-11:55 pm
Nonstop3h 45m
PhiladelphiaDenver
PHL - DEN
PHLDEN
Philadelphia
Sun 3/8
5:05 am-9:30 pm
2 stops18h 25m
Denver Intl
Sun 3/15
11:59 pm-5:31 am
Nonstop3h 32m
PhiladelphiaDenver
PHL - DEN
PHLDEN
Philadelphia
Fri 4/3
8:25 pm-10:53 pm
Nonstop4h 28m
Denver Intl
Sun 4/5
11:59 pm-8:39 am
2 stops30h 40m
PhiladelphiaDenver
PHL - DEN
PHLDEN
Philadelphia
Thu 2/26
5:15 am-9:40 am
1 stop6h 25m
Denver Intl
Sat 2/28
5:25 pm-10:50 pm
Nonstop3h 25m
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*2 stars | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars |
Booking 55 days in advance of your planned departure date is, on average, the best time to get cheap flights from Philadelphia to Denver. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
Currently, October is the cheapest month in which you can book a flight from Philadelphia to Denver (average of $88). Flying from Philadelphia to Denver in May is currently the most expensive (average of $142). 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.
It’s typically best to fly out from Philadelphia to Denver at noon. Doing so could potentially save you 33% on the flight price compared to flying in the afternoon, which is usually more expensive.
Travelers seeking maximum savings on their Philadelphia to Denver flight should consider departing on Friday at noon when fares are most often at their lowest. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.
About 18% of weekly flights between Philadelphia and Denver have experienced delays in the past year, with the average delay time being 159 minutes.
Historically, flights departing at night are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.
Saturday tends to have the lowest number of delays on this route, whereas Thursday has historically faced a higher average of delays compared to other days of the week.
Over the last year, United Airlines have had the lowest number of delays on this route, with just 10% of flights being delayed.
Food
Boarding
Comfort
Overall
Crew
Entertainment
Reviews
Thomas,Dec 2025
SEA - DEN
Food
Boarding
Comfort
Overall
Crew
Entertainment
Reviews
Thomas,Dec 2025
SEA - DEN
Food
Boarding
Comfort
Overall
Crew
Entertainment
Reviews
Thomas,Dec 2025
SEA - DEN
Food
Boarding
Comfort
Overall
Crew
Entertainment
Reviews
Thomas,Dec 2025
SEA - DEN
Food
Boarding
Comfort
Overall
Crew
Entertainment
Reviews
Thomas,Dec 2025
SEA - DEN
Food
Boarding
Comfort
Overall
Crew
Entertainment
Reviews
Thomas,Dec 2025
SEA - DEN
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$106 | Average$194 | FlexibilityNo cancel fee | On-time88% | |
| Cheapest$111 | Average$220 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$128 | Average$264 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$188 | Average$394 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$199 | Average$349 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$206 | Average$370 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$208 | Average$277 | FlexibilityNo cancel fee | On-time62% |