$112+ Cheap flights from Philadelphia to Denver (PHL - DEN)
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 7/4. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — DEN
Jul 4 — Jul 111
Round-trip
1 adult, Economy
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Find cheap flights from Philadelphia to Denver 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
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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 Denver Intl are usually found in August or July, booked 28 days in advance, depart on a Friday or Thursday and return on a Thursday
Cheap flight deals from Philadelphia to Denver
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Best
Last-minute
One-way
Cheapest flights from Philadelphia to DenverExplore the most affordable flight options available from Philadelphia to Denver. Find the lowest fares from popular airlines and budget airlines, with prices last updated on Juni 4, 2026.
Explore the most affordable flight options available from Philadelphia to Denver. Find the lowest fares from popular airlines and budget airlines, with prices last updated on Juni 4, 2026.
This Kiwi.com deal was found by Cheapflights users on 6/4. 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.
Di 8/49:00 am
PHL
- DEN
2 stops15h 05m
Frontier
Di 8/1111:59 pm
DEN
- PHL
1 stop23h 10m
Frontier
Deal found 6/4![Frontier logo]()
$190
This Kiwi.com deal was found by Cheapflights users on 6/4. 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.
Di 8/118:24 pm
PHL
- DEN
1 stop12h 04m
Frontier
Mo 8/176:00 am
DEN
- PHL
1 stop17h 09m
Frontier
Deal found 6/4![Frontier logo]()
$191
This Kiwi.com deal was found by Cheapflights users on 6/3. 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.
Do 8/64:38 pm
PHL
- DEN
1 stop8h 17m
Frontier
Mi 8/125:23 pm
DEN
- PHL
1 stop29h 38m
Frontier
Deal found 6/3![Frontier logo]()
$192
This Kiwi.com deal was found by Cheapflights users on 6/3. 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.
Do 8/134:34 pm
PHL
- DEN
1 stop8h 21m
Frontier
Sa 8/1510:16 am
DEN
- PHL
2 stops18h 59m
Frontier
Deal found 6/3![Frontier logo]()
$195
This CheapOair deal was found by Cheapflights users on 6/3. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mi 7/2212:44 pm
PHL
- DEN
Nonstop4h 14m
Multiple Airlines
Di 7/2811:37 pm
DEN
- PHL
1 stop6h 53m
Multiple Airlines
Deal found 6/3![Multiple Airlines logo]()
$198
This CheapOair deal was found by Cheapflights users on 6/4. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Di 8/258:28 am
PHL
- DEN
1 stop6h 47m
Multiple Airlines
Sa 8/296:05 am
DEN
- PHL
Nonstop3h 42m
Multiple Airlines
Deal found 6/4![Multiple Airlines logo]()
$199
This Orbitz deal was found by Cheapflights users on 6/3. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Di 8/258:28 am
PHL
- DEN
1 stop6h 47m
Multiple Airlines
Di 9/16:05 am
DEN
- PHL
Nonstop3h 42m
Multiple Airlines
Deal found 6/3![Multiple Airlines logo]()
$202
This Cheapflightsfares deal was found by Cheapflights users on 6/4. 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.
Mi 7/2212:44 pm
PHL
- DEN
Nonstop4h 14m
Frontier
Mi 8/196:05 am
DEN
- PHL
Nonstop3h 42m
Frontier
Deal found 6/4![Frontier logo]()
$204
This Super.com deal was found by Cheapflights users on 6/3. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mi 7/2212:44 pm
PHL
- DEN
Nonstop4h 14m
Frontier
Di 7/286:05 am
DEN
- PHL
Nonstop3h 44m
Frontier
Deal found 6/3![Frontier logo]()
$205
This Cheapflightsfares deal was found by Cheapflights users on 6/4. 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.
Sa 8/112:44 pm
PHL
- DEN
Nonstop4h 14m
Frontier
Sa 8/86:05 am
DEN
- PHL
Nonstop3h 44m
Frontier
Deal found 6/4![Frontier logo]()
$206
This Frontier deal was found by Cheapflights users on 6/3. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sa 9/512:42 pm
PHL
- DEN
Nonstop4h 14m
Frontier
Di 9/1511:59 pm
DEN
- PHL
Nonstop3h 37m
Frontier
Deal found 6/3![Frontier logo]()
$207
This Expedia deal was found by Cheapflights users on 6/3. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sa 8/2212:42 pm
PHL
- DEN
Nonstop4h 14m
Frontier
Sa 8/296:05 am
DEN
- PHL
Nonstop3h 42m
Frontier
Deal found 6/3![Frontier logo]()
$208
Best flights from Philadelphia to DenverDiscover carefully curated flight deals from Philadelphia to Denver that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated Juni 4, 2026.
Discover carefully curated flight deals from Philadelphia to Denver that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated Juni 4, 2026.
This Delta deal was found by Cheapflights users on 5/30. 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.
Sa 8/221:49 pm
PHL
- DEN
1 stop8h 03m
Delta
Sa 8/296:00 am
DEN
- PHL
1 stop6h 42m
Delta
Deal found 5/30![Delta logo]()
$333
This Southwest deal was found by Cheapflights users on 6/4. 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.
Fr 8/215:25 am
PHL
- DEN
Nonstop3h 50m
Southwest
Di 8/256:10 pm
DEN
- PHL
Nonstop3h 40m
Southwest
Deal found 6/4![Southwest logo]()
$357
This Delta deal was found by Cheapflights users on 5/30. 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.
Mi 8/2610:43 am
PHL
- DEN
1 stop9h 12m
Delta
So 8/306:00 am
DEN
- PHL
1 stop6h 47m
Delta
Deal found 5/30![Delta logo]()
$377
This Southwest deal was found by Cheapflights users on 6/1. 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.
Mi 8/121:45 pm
PHL
- DEN
2 stops8h 00m
Southwest
So 8/167:25 am
DEN
- PHL
1 stop6h 30m
Southwest
Deal found 6/1![Southwest logo]()
$382
This Delta deal was found by Cheapflights users on 6/4. 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.
Do 11/192:12 pm
PHL
- DEN
1 stop8h 11m
Delta
Di 12/12:20 pm
DEN
- PHL
1 stop7h 20m
Delta
Deal found 6/4![Delta logo]()
$377
This Southwest deal was found by Cheapflights users on 5/30. 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.
Sa 7/252:50 pm
PHL
- DEN
2 stops7h 00m
Southwest
Di 7/287:35 am
DEN
- PHL
1 stop7h 50m
Southwest
Deal found 5/30![Southwest logo]()
$396
This Southwest deal was found by Cheapflights users on 5/31. 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.
So 9/136:20 am
PHL
- DEN
2 stops6h 35m
Southwest
Sa 9/197:50 am
DEN
- PHL
2 stops8h 30m
Southwest
Deal found 5/31![Southwest logo]()
$410
This Delta deal was found by Cheapflights users on 5/30. 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.
Mo 8/246:05 am
PHL
- DEN
1 stop5h 47m
Delta
Do 8/279:39 am
DEN
- PHL
1 stop5h 55m
Delta
Deal found 5/30![Delta logo]()
$421
This Southwest deal was found by Cheapflights users on 6/1. 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.
So 8/96:20 am
PHL
- DEN
2 stops6h 35m
Southwest
So 8/167:25 am
DEN
- PHL
1 stop6h 30m
Southwest
Deal found 6/1![Southwest logo]()
$426
This Southwest deal was found by Cheapflights users on 5/30. 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.
Mo 8/246:20 am
PHL
- DEN
2 stops6h 40m
Southwest
Fr 8/288:05 am
DEN
- PHL
1 stop7h 20m
Southwest
Deal found 5/30![Southwest logo]()
$426
This Southwest deal was found by Cheapflights users on 5/30. 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.
Mi 9/167:55 am
PHL
- DEN
2 stops7h 40m
Southwest
So 9/2010:50 am
DEN
- PHL
2 stops10h 40m
Southwest
Deal found 5/30![Southwest logo]()
$429
Last-minute flights from Philadelphia to DenverDiscover last-minute flight deals from Philadelphia to Denver. Data last updated Juni 4, 2026 and is based on user searches.
Discover last-minute flight deals from Philadelphia to Denver. Data last updated Juni 4, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 6/3. 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.
Di 6/234:35 pm
PHL
- DEN
1 stop18h 28m
Frontier
Di 6/3011:46 pm
DEN
- PHL
1 stop10h 37m
Frontier
Deal found 6/3![Frontier logo]()
$230
This Frontier deal was found by Cheapflights users on 5/30. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Di 6/3012:42 pm
PHL
- DEN
Nonstop4h 14m
Frontier
Sa 7/46:05 am
DEN
- PHL
Nonstop3h 42m
Frontier
Deal found 5/30![Frontier logo]()
$224
This Kiwi.com deal was found by Cheapflights users on 6/3. 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.
Di 6/308:30 am
PHL
- DEN
1 stop7h 29m
Frontier
Di 7/76:05 am
DEN
- PHL
Nonstop3h 44m
Frontier
Deal found 6/3![Frontier logo]()
$228
This Cheapflightsfares deal was found by Cheapflights users on 6/4. 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.
Fr 7/38:37 pm
PHL
- DEN
Nonstop4h 22m
Frontier
Di 7/76:05 am
DEN
- PHL
Nonstop3h 44m
Frontier
Deal found 6/4![Frontier logo]()
$213
This Cheapflightsfares deal was found by Cheapflights users on 6/3. 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.
Sa 7/412:42 pm
PHL
- DEN
Nonstop4h 14m
Frontier
Sa 7/116:05 am
DEN
- PHL
Nonstop3h 44m
Frontier
Deal found 6/3![Frontier logo]()
$222
This Cheapflightsfares deal was found by Cheapflights users on 6/3. 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.
Di 7/712:44 pm
PHL
- DEN
Nonstop4h 14m
Frontier
Di 7/146:05 am
DEN
- PHL
Nonstop3h 44m
Frontier
Deal found 6/3![Frontier logo]()
$225
This CheapOair deal was found by Cheapflights users on 6/3. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mi 7/2212:44 pm
PHL
- DEN
Nonstop4h 14m
Multiple Airlines
Di 7/2811:37 pm
DEN
- PHL
1 stop6h 53m
Multiple Airlines
Deal found 6/3![Multiple Airlines logo]()
$198
This Cheapflightsfares deal was found by Cheapflights users on 6/4. 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.
Mi 7/2212:44 pm
PHL
- DEN
Nonstop4h 14m
Frontier
Mi 8/196:05 am
DEN
- PHL
Nonstop3h 42m
Frontier
Deal found 6/4![Frontier logo]()
$204
This Super.com deal was found by Cheapflights users on 6/3. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mi 7/2212:44 pm
PHL
- DEN
Nonstop4h 14m
Frontier
Di 7/286:05 am
DEN
- PHL
Nonstop3h 44m
Frontier
Deal found 6/3![Frontier logo]()
$205
This Kiwi.com deal was found by Cheapflights users on 6/4. 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.
Mi 7/2212:44 pm
PHL
- DEN
Nonstop4h 14m
Frontier
Mi 7/298:55 am
DEN
- PHL
1 stop14h 14m
Frontier
Deal found 6/4![Frontier logo]()
$214
This Cheapflightsfares deal was found by Cheapflights users on 6/2. 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.
Sa 7/2512:44 pm
PHL
- DEN
Nonstop4h 14m
Frontier
Sa 8/16:05 am
DEN
- PHL
Nonstop3h 44m
Frontier
Deal found 6/2![Frontier logo]()
$206
One-way flights from Philadelphia to DenverSearch for one-way flight options from Philadelphia to Denver. Find affordable one-way fares based on user searches. Data last updated Juni 4, 2026.
Search for one-way flight options from Philadelphia to Denver. Find affordable one-way fares based on user searches. Data last updated Juni 4, 2026.
This Frontier deal was found by Cheapflights users on 5/31. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sa 7/412:42 pm
PHL
- DEN
Nonstop4h 14m
Frontier
Deal found 5/31![Frontier logo]()
$112
This Kiwi.com deal was found by Cheapflights users on 6/2. 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.
Sa 8/112:44 pm
PHL
- DEN
Nonstop4h 14m
Frontier
Deal found 6/2![Frontier logo]()
$115
This Kiwi.com deal was found by Cheapflights users on 6/3. 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.
Mo 8/176:11 pm
PHL
- DEN
2 stops21h 48m
Frontier
Deal found 6/3![Frontier logo]()
$128
This Kiwi.com deal was found by Cheapflights users on 6/4. 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.
Sa 6/276:30 am
PHL
- DEN
1 stop17h 46m
Frontier
Deal found 6/4![Frontier logo]()
$129
This Kiwi.com deal was found by Cheapflights users on 6/3. 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.
So 8/26:18 pm
PHL
- DEN
2 stops39h 31m
Multiple Airlines
Deal found 6/3![Multiple Airlines logo]()
$130
This Trip.com deal was found by Cheapflights users on 6/4. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Do 7/167:43 pm
PHL
- DEN
1 stop21h 40m
Multiple Airlines
Deal found 6/4![Multiple Airlines logo]()
$131
This Kiwi.com deal was found by Cheapflights users on 6/2. 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.
Mo 7/64:40 pm
PHL
- DEN
2 stops33h 17m
Frontier
Deal found 6/2![Frontier logo]()
$133
This Kiwi.com deal was found by Cheapflights users on 6/2. 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.
Do 7/97:48 pm
PHL
- DEN
1 stop21h 35m
Multiple Airlines
Deal found 6/2![Multiple Airlines logo]()
$134
This Kiwi.com deal was found by Cheapflights users on 6/2. 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.
So 6/289:08 pm
PHL
- DEN
1 stop20h 25m
Multiple Airlines
Deal found 6/2![Multiple Airlines logo]()
$135
This Kiwi.com deal was found by Cheapflights users on 5/30. 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.
Do 8/135:36 pm
PHL
- DEN
2 stops24h 18m
Multiple Airlines
Deal found 5/30![Multiple Airlines logo]()
$136
This Cheapflightsfares deal was found by Cheapflights users on 6/2. 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.
Di 6/1612:42 pm
PHL
- DEN
Nonstop4h 14m
Frontier
Deal found 6/2![Frontier logo]()
$137
This Kiwi.com deal was found by Cheapflights users on 5/31. 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.
So 7/199:03 pm
PHL
- DEN
1 stop20h 20m
Multiple Airlines
Deal found 5/31![Multiple Airlines logo]()
$138
Find flight deals from Philadelphia to Denver
Discover tips and strategies to find the most affordable flight options for your journey from Philadelphia (PHL) to Denver (DEN). 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 Juni 4, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $190 (Kiwi.com) |
One-way from | $112 (Frontier) |
Popular in | March |
Cheapest in | August |
Average price | $350 |
Good round-trip deal | $331 or less |
Good one-way deal | $190 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Philadelphia to Denver 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 Juni 4, 2026.
Use the filters below to find and compare flights from Philadelphia to Denver that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
PhiladelphiaDenver
PHL - DEN
PHLDEN
Philadelphia
Sa 8/22
1:49 pm-7:52 pm
1 stop8h 03m
Denver Intl
Sa 8/29
6:00 am-2:42 pm
1 stop6h 42m
$333
Quickest round-trip
PhiladelphiaDenver
PHL - DEN
PHLDEN
Philadelphia
Fr 8/21
5:25 am-7:15 am
Nonstop3h 50m
Denver Intl
Di 8/25
6:10 pm-11:50 pm
Nonstop3h 40m
$357
PhiladelphiaDenver
PHL - DEN
PHLDEN
Philadelphia
Mi 8/26
10:43 am-5:55 pm
1 stop9h 12m
Denver Intl
So 8/30
6:00 am-2:47 pm
1 stop6h 47m
$377
PhiladelphiaDenver
PHL - DEN
PHLDEN
Philadelphia
Do 11/19
2:12 pm-8:23 pm
1 stop8h 11m
Denver Intl
Di 12/1
2:20 pm-11:40 pm
1 stop7h 20m
$377
PhiladelphiaDenver
PHL - DEN
PHLDEN
Philadelphia
Mi 8/12
1:45 pm-7:45 pm
2 stops8h 00m
Denver Intl
So 8/16
7:25 am-3:55 pm
1 stop6h 30m
$382
PhiladelphiaDenver
PHL - DEN
PHLDEN
Philadelphia
Sa 7/25
2:50 pm-7:50 pm
2 stops7h 00m
Denver Intl
Di 7/28
7:35 am-5:25 pm
1 stop7h 50m
$396
PhiladelphiaDenver
PHL - DEN
PHLDEN
Philadelphia
So 9/13
6:20 am-10:55 am
2 stops6h 35m
Denver Intl
Sa 9/19
7:50 am-6:20 pm
2 stops8h 30m
$410
PhiladelphiaDenver
PHL - DEN
PHLDEN
Philadelphia
Mo 8/24
6:05 am-9:52 am
1 stop5h 47m
Denver Intl
Do 8/27
9:39 am-5:34 pm
1 stop5h 55m
$421
PhiladelphiaDenver
PHL - DEN
PHLDEN
Philadelphia
So 8/9
6:20 am-10:55 am
2 stops6h 35m
Denver Intl
So 8/16
7:25 am-3:55 pm
1 stop6h 30m
$426
PhiladelphiaDenver
PHL - DEN
PHLDEN
Philadelphia
Mo 8/24
6:20 am-11:00 am
2 stops6h 40m
Denver Intl
Fr 8/28
8:05 am-5:25 pm
1 stop7h 20m
$426
Showing 1-10 of 23 resultsSorted by cheapest first
Compare providers for flights from Philadelphia to Denver
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 Denver in June.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy- | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*1 star | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Philadelphia-Denver flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Philadelphia-Denver flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Philadelphia-Denver flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Philadelphia-Denver flights, Cheapflights users trust FlightHub the most. FlightHub 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-Denver 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 Denver
Have a flexible travel schedule? Discover the best time to fly to Denver from Philadelphia with our price prediction graph.
PHL-DEN
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Philadelphia to Denver
Prices
Airlines
Delays
How far ahead should I book a flight from Philadelphia to Denver?
Booking 27 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.
What is the cheapest month to book a flight from Philadelphia to Denver?
Currently, August is the cheapest month in which you can book a flight from Philadelphia to Denver (average of $284). Flying from Philadelphia to Denver in March is currently the most expensive (average of $428). 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 DEN?
Find hourly flight availability from Philadelphia to Denver. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated Juni 4, 2026.
It’s typically best to fly out from Philadelphia to Denver in the evening. Doing so could potentially save you 37% on the flight price compared to flying in the afternoon, which is usually more expensive.
What is the cheapest day to fly from Philadelphia to Denver?
Use this chart to determine the cheapest time to fly round-trip from Philadelphia to Denver. Price data was last updated on May 30, 2026.
Travelers seeking maximum savings on their Philadelphia to Denver flight should consider departing on Tuesday evenings when fares are most often at their lowest. Tuesday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
How often are flights from Philadelphia to Denver delayed?
About 18% of weekly flights between Philadelphia and Denver have experienced delays in the past year, with the average delay time being 160 minutes.
What is the most punctual flight time for Philadelphia to Denver flights?
Historically, flights departing at night are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.
What day of the week experiences the fewest flight delays on this route?
Saturday tends to have the lowest number of delays on this route, whereas Sunday has historically faced a higher average of delays compared to other days of the week.
Which airline has the best punctuality record on Philadelphia to Denver flights?
Over the last year, United Airlines have had the lowest number of delays on this route, with just 12% of flights being delayed.
The best insider tips for Philadelphia to Denver flights
AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your Philadelphia to Denver trip
Our travel experts
Reviews of airlines servicing Denver
Get insights into the airlines that provide service to Denver. 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 Denver. Reviews last updated Juni 4, 2026.
Peruse reviews from past customers who have flown with Southwest,United Airlines, andAmerican Airlines from Philadelphia to Denver to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
7.5
Overall
8.0
Crew
8.6
Food
7.0
Boarding
8.1
Comfort
8.0
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Entertainment
7.5
Overall
8.0
Crew
8.6
Food
7.0
Boarding
8.1
Comfort
8.0
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Entertainment
7.5
Overall
8.0
Crew
8.6
Food
7.0
Boarding
8.1
Comfort
8.0
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Entertainment
7.5
Overall
8.0
Crew
8.6
Food
7.0
Boarding
8.1
Comfort
8.0
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Entertainment
7.5
Overall
8.0
Crew
8.6
Food
7.0
Boarding
8.1
Comfort
8.0
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Entertainment
7.5
Overall
8.0
Crew
8.6
Food
7.0
Boarding
8.1
Comfort
8.0
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Related info for your journey
Find useful and relevant information for your journey from Philadelphia to Denver. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Denver?
Book flights to Denver if you plan to visit one of these locationsThornton
Black Hawk
Westminster
Lakewood
Broomfield
Centennial
Golden
Greeley
Fort Morgan
Lone Tree
Wheat Ridge
Silverthorne
Central City
Cripple Creek
Winter Park
Manitou Springs
Frisco
Englewood
Glendale
Evergreen
Browse thousands of different options on Cheapflights for your next trip
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Alternative routes for Philadelphia to Denver
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Complete your trip
Complete your trip to Denver by adding a car rental and/or hotel reservation to your travel itinerary.
Other flights to Denver
Explore flights to Denver departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on Juni 4, 2026.
Search flights from Philadelphia to Denver by cabin class
Find flights from Philadelphia to Denver, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Philadelphia and Denver flights
Browse other Philadelphia and Denver flight options. Last updated on Juni 4, 2026.
Other flights from Philadelphia
Browse through other flights departing from Philadelphia. Flights are based on user searches made on Cheapflights and were last updated on Juni 4, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 6 airlines flying from Philadelphia to Denver
Discover the top 6 airlines that operate flights from Philadelphia to Denver. 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 Juni 4, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$100 | Average$229 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$195 | Average$411 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$199 | Average$363 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$211 | Average$397 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$220 | Average$306 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$237 | Average$416 | FlexibilityNo cancel fee | On-timeN/A |