$112+ Cheap flights from Denver to Philadelphia (DEN - PHL)
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 6/30. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — PHL
Jul 3 — Jul 101
Round-trip
1 adult, Economy
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Find cheap flights from Denver to Philadelphia 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 Denver Intl to Philadelphia are usually found in February or September, booked 43 days in advance, depart on a Thursday or Friday and return on a Friday
Cheap flight deals from Denver to Philadelphia
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Best
Last-minute
One-way
Cheapest flights from Denver to PhiladelphiaExplore the most affordable flight options available from Denver to Philadelphia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 3, 2026.
Explore the most affordable flight options available from Denver to Philadelphia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 3, 2026.
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.
Sat 7/46:05 am
DEN
- PHL
Nonstop3h 42m
Frontier
Wed 7/812:44 pm
PHL
- DEN
Nonstop4h 14m
Frontier
Deal found 6/3![Frontier logo]()
$222
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.
Tue 9/1511:59 pm
DEN
- PHL
Nonstop3h 37m
Frontier
Wed 9/168:44 pm
PHL
- DEN
Nonstop4h 20m
Frontier
Deal found 6/3![Frontier logo]()
$224
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.
Wed 7/226:30 am
DEN
- PHL
1 stop13h 58m
Frontier
Wed 7/2912:44 pm
PHL
- DEN
Nonstop4h 14m
Frontier
Deal found 6/2![Frontier logo]()
$227
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.
Tue 6/238:33 pm
DEN
- PHL
1 stop11h 57m
Frontier
Wed 6/2412:42 pm
PHL
- DEN
Nonstop4h 14m
Frontier
Deal found 6/3![Frontier logo]()
$228
This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/2211:59 pm
DEN
- PHL
Nonstop3h 39m
Frontier
Tue 6/238:30 am
PHL
- DEN
1 stop7h 29m
Frontier
Deal found 6/2![Frontier logo]()
$229
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.
Sat 8/86:05 am
DEN
- PHL
Nonstop3h 44m
Frontier
Wed 8/128:30 am
PHL
- DEN
1 stop7h 30m
Frontier
Deal found 6/3![Frontier logo]()
$232
This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/307:41 am
DEN
- PHL
1 stop5h 48m
Frontier
Thu 7/308:37 pm
PHL
- DEN
Nonstop4h 27m
Frontier
Deal found 6/1![Frontier logo]()
$233
This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/246:05 am
DEN
- PHL
Nonstop3h 42m
Frontier
Wed 6/244:35 pm
PHL
- DEN
1 stop7h 41m
Frontier
Deal found 6/2![Frontier logo]()
$234
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.
Thu 8/209:00 am
DEN
- PHL
1 stop28h 45m
Multiple Airlines
Sun 8/236:07 pm
PHL
- DEN
2 stops35h 51m
Multiple Airlines
Deal found 6/3![Multiple Airlines logo]()
$237
This CheapOair 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/311:59 pm
DEN
- PHL
Nonstop3h 37m
Frontier
Sun 10/411:05 am
PHL
- DEN
1 stop27h 55m
Frontier
Deal found 5/30![Frontier logo]()
$239
Best flights from Denver to PhiladelphiaDiscover carefully curated flight deals from Denver to Philadelphia that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 3, 2026.
Discover carefully curated flight deals from Denver to Philadelphia that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 3, 2026.
This United Airlines deal was found by Cheapflights users on 5/29. 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.
Sat 7/1811:59 pm
DEN
- PHL
Nonstop3h 32m
United Airlines
Tue 7/2810:00 am
PHL
- DEN
Nonstop4h 01m
United Airlines
Deal found 5/29![United Airlines logo]()
$313
This Southwest deal was found by Cheapflights users on 5/29. 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.
Thu 8/67:00 am
DEN
- PHL
1 stop7h 00m
Southwest
Tue 8/111:45 pm
PHL
- DEN
2 stops8h 00m
Southwest
Deal found 5/29![Southwest logo]()
$326
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/42:15 pm
DEN
- PHL
1 stop8h 45m
Delta
Sat 7/117:05 pm
PHL
- DEN
1 stop6h 59m
Delta
Deal found 5/31![Delta logo]()
$334
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.
Tue 6/306:15 am
DEN
- PHL
1 stop5h 15m
Southwest
Wed 7/81:50 pm
PHL
- DEN
2 stops8h 10m
Southwest
Deal found 5/31![Southwest logo]()
$361
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.
Wed 10/286:05 am
DEN
- PHL
1 stop8h 05m
Delta
Sun 11/16:15 am
PHL
- DEN
1 stop7h 48m
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.
Wed 7/156:15 am
DEN
- PHL
1 stop5h 15m
Southwest
Wed 7/291:50 pm
PHL
- DEN
2 stops8h 10m
Southwest
Deal found 6/1![Southwest logo]()
$361
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/121:55 pm
DEN
- PHL
Nonstop3h 30m
United Airlines
Mon 11/233:30 pm
PHL
- DEN
Nonstop3h 58m
United Airlines
Deal found 6/3![United Airlines logo]()
$401
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/241:45 pm
DEN
- PHL
Nonstop3h 40m
United Airlines
Fri 8/288:00 am
PHL
- DEN
Nonstop4h 05m
United Airlines
Deal found 6/1![United Airlines logo]()
$401
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.
Thu 8/1312:10 pm
DEN
- PHL
2 stops7h 50m
Southwest
Sat 8/151:10 pm
PHL
- DEN
1 stop7h 15m
Southwest
Deal found 5/31![Southwest logo]()
$382
This Southwest deal was found by Cheapflights users on 5/29. 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.
Thu 8/1311:50 am
DEN
- PHL
2 stops8h 10m
Southwest
Sun 8/166:20 am
PHL
- DEN
2 stops6h 35m
Southwest
Deal found 5/29![Southwest logo]()
$385
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.
Thu 9/248:10 am
DEN
- PHL
2 stops7h 45m
Southwest
Tue 9/291:45 pm
PHL
- DEN
2 stops8h 00m
Southwest
Deal found 6/1![Southwest logo]()
$387
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.
Sat 6/2012:05 pm
DEN
- PHL
2 stops6h 50m
Southwest
Wed 11/251:45 pm
PHL
- DEN
1 stop8h 25m
Southwest
Deal found 5/31![Southwest logo]()
$395
Last-minute flights from Denver to PhiladelphiaDiscover last-minute flight deals from Denver to Philadelphia. Data last updated June 3, 2026 and is based on user searches.
Discover last-minute flight deals from Denver to Philadelphia. Data last updated June 3, 2026 and is based on user searches.
This CheapOair 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/2111:59 pm
DEN
- PHL
Nonstop3h 39m
Frontier
Mon 6/221:32 pm
PHL
- DEN
1 stop26h 27m
Frontier
Deal found 6/2![Frontier logo]()
$244
This Frontier deal was found by Cheapflights users on 5/29. 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.
Mon 6/2211:59 pm
DEN
- PHL
Nonstop3h 39m
Frontier
Tue 6/2311:35 am
PHL
- DEN
1 stop10h 00m
Frontier
Deal found 5/29![Frontier logo]()
$224
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.
Tue 6/238:33 pm
DEN
- PHL
1 stop11h 57m
Frontier
Wed 6/2412:42 pm
PHL
- DEN
Nonstop4h 14m
Frontier
Deal found 6/3![Frontier logo]()
$228
This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/246:05 am
DEN
- PHL
Nonstop3h 42m
Frontier
Wed 6/244:35 pm
PHL
- DEN
1 stop7h 41m
Frontier
Deal found 6/2![Frontier logo]()
$234
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.
Fri 6/268:33 pm
DEN
- PHL
1 stop11h 57m
Frontier
Sat 6/2712:42 pm
PHL
- DEN
Nonstop4h 14m
Frontier
Deal found 5/31![Frontier logo]()
$247
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.
Wed 7/110:11 am
DEN
- PHL
2 stops19h 08m
Frontier
Wed 7/88:30 am
PHL
- DEN
1 stop15h 35m
Frontier
Deal found 6/3![Frontier logo]()
$242
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.
Sat 7/46:05 am
DEN
- PHL
Nonstop3h 42m
Frontier
Wed 7/812:44 pm
PHL
- DEN
Nonstop4h 14m
Frontier
Deal found 6/3![Frontier logo]()
$222
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.
Wed 7/226:30 am
DEN
- PHL
1 stop13h 58m
Frontier
Wed 7/2912:44 pm
PHL
- DEN
Nonstop4h 14m
Frontier
Deal found 6/2![Frontier logo]()
$227
This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/307:41 am
DEN
- PHL
1 stop5h 48m
Frontier
Thu 7/308:37 pm
PHL
- DEN
Nonstop4h 27m
Frontier
Deal found 6/1![Frontier logo]()
$233
One-way flights from Denver to PhiladelphiaSearch for one-way flight options from Denver to Philadelphia. Find affordable one-way fares based on user searches. Data last updated June 3, 2026.
Search for one-way flight options from Denver to Philadelphia. Find affordable one-way fares based on user searches. Data last updated June 3, 2026.
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.
Tue 6/306:05 am
DEN
- PHL
Nonstop3h 42m
Frontier
Deal found 5/30![Frontier logo]()
$112
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/286:05 am
DEN
- PHL
Nonstop3h 44m
Frontier
Deal found 5/30![Frontier logo]()
$113
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.
Thu 8/209:00 am
DEN
- PHL
1 stop28h 45m
Allegiant Air
Deal found 6/2![Allegiant Air logo]()
$116
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.
Tue 8/2510:26 am
DEN
- PHL
1 stop6h 59m
Delta
Deal found 5/30![Delta logo]()
$119
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.
Mon 7/132:55 pm
DEN
- PHL
1 stop26h 34m
Frontier
Deal found 6/2![Frontier logo]()
$121
This Frontier deal was found by Cheapflights users on 5/29. 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.
Tue 8/46:05 am
DEN
- PHL
Nonstop3h 44m
Frontier
Deal found 5/29![Frontier logo]()
$122
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.
Thu 9/1011:59 pm
DEN
- PHL
1 stop11h 13m
Frontier
Deal found 6/3![Frontier logo]()
$125
This Cheapflightsfares 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/136:05 am
DEN
- PHL
Nonstop3h 42m
Frontier
Deal found 5/31![Frontier logo]()
$128
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.
Thu 7/239:01 am
DEN
- PHL
1 stop6h 27m
Allegiant Air
Deal found 6/2![Allegiant Air logo]()
$129
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.
Thu 8/279:00 am
DEN
- PHL
1 stop28h 45m
Allegiant Air
Deal found 6/2![Allegiant Air logo]()
$131
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/129:01 am
DEN
- PHL
1 stop6h 36m
Allegiant Air
Deal found 6/1![Allegiant Air logo]()
$132
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.
Sun 8/309:00 am
DEN
- PHL
1 stop28h 15m
Allegiant Air
Deal found 6/2![Allegiant Air logo]()
$133
Find flight deals from Denver to Philadelphia
Discover tips and strategies to find the most affordable flight options for your journey from Denver (DEN) to Philadelphia (PHL). 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 June 3, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $222 (Cheapflightsfares) |
One-way from | $112 (Frontier) |
Popular in | June |
Cheapest in | February |
Average price | $376 |
Good round-trip deal | $370 or less |
Good one-way deal | $184 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Denver to Philadelphia 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 June 3, 2026.
Use the filters below to find and compare flights from Denver to Philadelphia that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
DenverPhiladelphia
DEN - PHL
DENPHL
Denver Intl
Sat 7/18
11:59 pm-5:31 am
Nonstop3h 32m
Philadelphia
Tue 7/28
10:00 am-12:01 pm
Nonstop4h 01m
$313
DenverPhiladelphia
DEN - PHL
DENPHL
Denver Intl
Thu 8/6
7:00 am-4:00 pm
1 stop7h 00m
Philadelphia
Tue 8/11
1:45 pm-7:45 pm
2 stops8h 00m
$326
DenverPhiladelphia
DEN - PHL
DENPHL
Denver Intl
Sat 7/4
2:15 pm-1:00 am
1 stop8h 45m
Philadelphia
Sat 7/11
7:05 pm-12:04 am
1 stop6h 59m
$334
DenverPhiladelphia
DEN - PHL
DENPHL
Denver Intl
Tue 6/30
6:15 am-1:30 pm
1 stop5h 15m
Philadelphia
Wed 7/8
1:50 pm-8:00 pm
2 stops8h 10m
$361
DenverPhiladelphia
DEN - PHL
DENPHL
Denver Intl
Wed 7/15
6:15 am-1:30 pm
1 stop5h 15m
Philadelphia
Wed 7/29
1:50 pm-8:00 pm
2 stops8h 10m
$361
DenverPhiladelphia
DEN - PHL
DENPHL
Denver Intl
Wed 10/28
6:05 am-4:10 pm
1 stop8h 05m
Philadelphia
Sun 11/1
6:15 am-12:03 pm
1 stop7h 48m
$377
DenverPhiladelphia
DEN - PHL
DENPHL
Denver Intl
Thu 8/13
12:10 pm-10:00 pm
2 stops7h 50m
Philadelphia
Sat 8/15
1:10 pm-6:25 pm
1 stop7h 15m
$382
DenverPhiladelphia
DEN - PHL
DENPHL
Denver Intl
Thu 8/13
11:50 am-10:00 pm
2 stops8h 10m
Philadelphia
Sun 8/16
6:20 am-10:55 am
2 stops6h 35m
$385
DenverPhiladelphia
DEN - PHL
DENPHL
Denver Intl
Thu 9/24
8:10 am-5:55 pm
2 stops7h 45m
Philadelphia
Tue 9/29
1:45 pm-7:45 pm
2 stops8h 00m
$387
DenverPhiladelphia
DEN - PHL
DENPHL
Denver Intl
Sat 6/20
12:05 pm-8:55 pm
2 stops6h 50m
Philadelphia
Wed 11/25
1:45 pm-8:10 pm
1 stop8h 25m
$395
Showing 1-10 of 23 resultsSorted by cheapest first
Compare providers for flights from Denver to Philadelphia
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 Denver to Philadelphia in June.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*1 star | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy- | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Denver-Philadelphia flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Denver-Philadelphia flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Denver-Philadelphia flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Denver-Philadelphia 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 Denver-Philadelphia 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 Denver to Philadelphia
Have a flexible travel schedule? Discover the best time to fly to Philadelphia from Denver with our price prediction graph.
DEN-PHL
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 Denver to Philadelphia
Prices
Airlines
How far ahead should I book a flight from Denver to Philadelphia?
To ensure you get the cheapest price possible for a flight from Denver to Philadelphia, you should look to book at least 42 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 Denver to Philadelphia?
Currently, February is the cheapest month in which you can book a flight from Denver to Philadelphia (average of $263). Flying from Denver to Philadelphia in June is currently the most expensive (average of $376). 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 DEN to PHL?
Find hourly flight availability from Denver to Philadelphia. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 3, 2026.
It’s typically best to fly out from Denver to Philadelphia in the evening. Doing so could potentially save you 43% on the flight price compared to flying at noon, which is usually more expensive.
What is the cheapest day to fly from Denver to Philadelphia?
Use this chart to determine the cheapest time to fly round-trip from Denver to Philadelphia. Price data was last updated on May 30, 2026.
Travelers seeking maximum savings on their Denver to Philadelphia flight should consider departing on Wednesday evenings when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
The best insider tips for Denver to Philadelphia 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 Denver to Philadelphia trip
Our travel experts
Reviews of airlines servicing Philadelphia
Get insights into the airlines that provide service to Philadelphia. 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 Philadelphia. Reviews last updated June 3, 2026.
Get a feel of what it's like to fly with Southwest,United Airlines, andAmerican Airlines from Denver to Philadelphia by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
7.5
Comfort
8.0
Boarding
8.1
Food
7.0
Crew
8.6
Overall
8.0
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Entertainment
7.5
Comfort
8.0
Boarding
8.1
Food
7.0
Crew
8.6
Overall
8.0
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Entertainment
7.5
Comfort
8.0
Boarding
8.1
Food
7.0
Crew
8.6
Overall
8.0
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Entertainment
7.5
Comfort
8.0
Boarding
8.1
Food
7.0
Crew
8.6
Overall
8.0
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Entertainment
7.5
Comfort
8.0
Boarding
8.1
Food
7.0
Crew
8.6
Overall
8.0
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Entertainment
7.5
Comfort
8.0
Boarding
8.1
Food
7.0
Crew
8.6
Overall
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 Denver to Philadelphia. 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 Philadelphia?
Book flights to Philadelphia if you plan to visit one of these locationsWildwood
King of Prussia
Reading
Camden
Ocean City
Cherry Hill
Lewes
Dewey Beach
Pottstown
Ephrata
Milford
Plymouth Meeting
Wildwood Crest
Dover
Elkton
Essington
Willow Grove
New Castle
Millville
Vineland
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Denver and Philadelphia flights
Browse other Denver and Philadelphia flight options. Last updated on June 3, 2026.
Other flights from Denver
Browse through other flights departing from Denver. Flights are based on user searches made on Cheapflights and were last updated on June 3, 2026.
Other flights to Philadelphia
Explore flights to Philadelphia departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on June 3, 2026.
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Check out other popular destinations found by fellow travelers in 2026
Top 6 airlines flying from Denver to Philadelphia
Discover the top 6 airlines that operate flights from Denver to Philadelphia. 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 June 3, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$118 | Average$251 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$122 | Average$290 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$128 | Average$337 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$197 | Average$465 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$215 | Average$409 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$215 | Average$378 | FlexibilityNo cancel fee | On-time71% |