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Cheap flights Philadelphia (Philadelphia International) to Denver

1 passenger, economy

Cheap flights Philadelphia to Denver

Compare prices, duration and stops

Frontier Airlines
F9 2297
12:41
Philadelphia, Philadelphia International (PHL)
Tue, 15 sep
14h 22min
1 stop
03:03
Denver (DEN)
Wed, 16 sep +1
104 S$
Frontier Airlines
F9 1147 Best price
21:32
Philadelphia, Philadelphia International (PHL)
Tue, 22 sep
16h 32min
1 stop
14:04
Denver (DEN)
Wed, 23 sep +1
101 S$
Frontier Airlines
F9 2505
21:45
Philadelphia, Philadelphia International (PHL)
Thu, 24 sep
15h 52min
1 stop
13:37
Denver (DEN)
Fri, 25 sep +1
138 S$
Frontier Airlines
F9 1473
19:35
Philadelphia, Philadelphia International (PHL)
Sat, 26 sep
8h 33min
1 stop
04:08
Denver (DEN)
Sun, 27 sep +1
121 S$
Southwest Airlines
WN 4335 🔥 Hot deal
20:50
Philadelphia, Philadelphia International (PHL)
Sat, 26 sep
3h 55min
Direct
00:45
Denver (DEN)
Sun, 27 sep +1
201 S$
Frontier Airlines
F9 3985
10:00
Philadelphia, Philadelphia International (PHL)
Thu, 1 oct
7h 59min
1 stop
17:59
Denver (DEN)
Thu, 1 oct
122 S$
United Airlines
UA 323
12:45
Philadelphia, Philadelphia International (PHL)
Thu, 26 nov
4h 20min
Direct
17:05
Denver (DEN)
Thu, 26 nov
171 S$
Southwest Airlines
WN 3364
00:25
Philadelphia, Philadelphia International (PHL)
Sat, 28 nov
5h 45min
1 stop
06:10
Denver (DEN)
Sat, 28 nov
262 S$
United Airlines
UA 660
11:10
Philadelphia, Philadelphia International (PHL)
Thu, 11 mar
6h 20min
1 stop
17:30
Denver (DEN)
Thu, 11 mar
285 S$

Low price calendar

September 2026
Price chart (September 2026)
min: 101 S$ · max: 138 S$
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101 S$
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Cheap flights Philadelphia to Denver

Southwest Airlines
Southwest Airlines
Sat
Price from
S$229

Popular destinations from Philadelphia

All →
PHL
Philadelphia — Atlanta
United States → United States
ATL
from
S$24
PHL
Philadelphia — Miami
United States → United States
MIA
from
S$29
PHL
Philadelphia — Fort Lauderdale
United States → United States
FLL
from
S$29
PHL
Philadelphia — Tampa
United States → United States
TPA
from
S$33
PHL
Philadelphia — Myrtle Beach
United States → United States
MYR
from
S$37
PHL
Philadelphia — Orlando
United States → United States
ORL
from
S$38
PHL
Philadelphia — Tampa
United States → United States
PIE
from
S$41
PHL
Philadelphia — Orlando
United States → United States
MCO
from
S$56

Popular destinations to Denver

All →
PHX
Phoenix — Denver
United States → United States
DEN
from
S$29
CHI
Chicago — Denver
United States → United States
DEN
from
S$30
SLC
Salt Lake City — Denver
United States → United States
DEN
from
S$32
SEA
Seattle — Denver
United States → United States
DEN
from
S$33
ATL
Atlanta — Denver
United States → United States
DEN
from
S$33
DFW
Dallas — Denver
United States → United States
DEN
from
S$33
AUS
Austin — Denver
United States → United States
DEN
from
S$33
LAX
Los Angeles — Denver
United States → United States
DEN
from
S$34
MSP
Minneapolis — Denver
United States → United States
DEN
from
S$38

Cheap flights Philadelphia to Denver

Interesting facts about the route

Flight time

6h 2min

Distance

2 500 km

Average price

S$186

Most frequent flight

F9 3339

Passenger reviews

No reviews for this route yet

Internet abroad

eSIM · United States

All plans

change

3 GB

data

30

days

S$11

Buy

change

2 GB

data

15

days

S$16

Buy

change

5 GB

data

30

days

S$18

Buy

change

3 GB

data

30

days

S$20

Buy

change

5 GB

data

30

days

S$29

Buy

Frequently Asked Questions

The average ticket price Philadelphia Denver is S$186. The cheapest ticket costs S$104, operated by Frontier Airlines, flight 2297, departing Philadelphia on 15 September at 12:41, arriving Denver on 16 September at 03:03.
The average flight time is 14 hours 22 minutes. The fastest flight takes 14 hours 22 minutes, flight 2297 operated by Frontier Airlines, departing Philadelphia on 15 September at 12:41, arriving Denver on 16 September at 03:03.
Flights on the Philadelphia - Denver route are operated by the following airlines: Southwest Airlines.
The distance from Philadelphia to Denver is 2500 km.