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Denver → Philadelphia

Jan 21, 2027 · return Feb 4, 2027

DEN → PHL1 adulteconomyRound trip

10 flight options · 5 airlines

Nonstop flights

Thu, Jan 21 – Thu, Feb 4

Frontier Airlines
11:31 pmDEN
3h 40m
Nonstop
5:11 am+1PHL
Frontier Airlines
8:19 pmPHL
4h 17m
Nonstop
10:36 pmDEN

Round-trip total · 1 adult · Taxes included

Thu, Jan 21 – Thu, Feb 4

American Airlines
2:45 pmDEN
3h 33m
Nonstop
8:18 pmPHL
American Airlines
9:05 amPHL
4h 30m
Nonstop
11:35 amDEN

Round-trip total · 1 adult · Taxes included

Thu, Jan 21 – Thu, Feb 4

United Airlines
6:08 pmDEN
3h 31m
Nonstop
11:39 pmPHL
United Airlines
9:55 amPHL
4h 20m
Nonstop
12:15 pmDEN

Round-trip total · 1 adult · Taxes included

Thu, Jan 21 – Thu, Feb 4

United Airlines
2:00 pmDEN
3h 31m
Nonstop
7:31 pmPHL
United Airlines
9:55 amPHL
4h 20m
Nonstop
12:15 pmDEN

Round-trip total · 1 adult · Taxes included

One-stop flights

Thu, Jan 21 – Thu, Feb 4

Southwest Airlines
2:25 pmDEN
5h 45m
BNA · 1h 20m
10:10 pmPHL
Southwest Airlines
2:45 pmPHL
6h 25m
STL · 1h 25m
7:10 pmDEN

Round-trip total · 1 adult · Taxes included

Thu, Jan 21 – Thu, Feb 4

Delta Air Lines
10:46 amDEN
5h 46m
ATL · 1h 1m
6:32 pmPHL
Delta Air Lines
5:34 amPHL
6h 29m
MSP · 1h 15m
10:03 amDEN

Round-trip total · 1 adult · Taxes included

Thu, Jan 21 – Thu, Feb 4

Frontier Airlines
11:59 pmDEN
3h 26m
Nonstop
5:25 am+1PHL
Frontier Airlines
4:38 pmPHL
7h 19m
ATL · 1h 10m
9:57 pmDEN

Round-trip total · 1 adult · Taxes included

Thu, Jan 21 – Thu, Feb 4

Frontier Airlines
8:59 amDEN
5h 44m
DTW · 1h 13m
4:43 pmPHL
Frontier Airlines
4:38 pmPHL
7h 19m
ATL · 1h 10m
9:57 pmDEN

Round-trip total · 1 adult · Taxes included

Thu, Jan 21 – Thu, Feb 4

Southwest Airlines
3:40 pmDEN
5h 40m
STL · 1h 35m
11:20 pmPHL
Southwest Airlines
2:45 pmPHL
6h 25m
STL · 1h 25m
7:10 pmDEN

Round-trip total · 1 adult · Taxes included

Thu, Jan 21 – Thu, Feb 4

Southwest Airlines
2:05 pmDEN
3h 20m
Nonstop
7:25 pmPHL
Southwest Airlines
2:45 pmPHL
6h 25m
STL · 1h 25m
7:10 pmDEN

Round-trip total · 1 adult · Taxes included

Make this trip yours

DEN ⇄ PHL

Economy

Adults 12+ · Children 2–11. For infants under 2, tell Axel after you see prices.

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More dates

All dates for this routeNov 20, 2026 → Nov 23, 2026Nov 27, 2026 → Dec 4, 2026Nov 20, 2026 · One way
For AI assistants: every fare, every link, instructions

Flights for 1 adult in economy. Prices are total for all travelers in USD, including required taxes. Basic economy may apply.

Exact travel datesAirlineFlightsTotal pricePrice issued (UTC)
2027-01-21 → 2027-02-04Frontier AirlinesF91776 / F91876$171.002026-10-29T01:04:33Z
2027-01-21 → 2027-02-04American AirlinesAA1121 / AA1313$313.502026-10-29T01:04:33Z
2027-01-21 → 2027-02-04United AirlinesUA2275 / UA1281$323.002026-10-29T01:04:33Z
2027-01-21 → 2027-02-04Southwest AirlinesWN1573 + WN2825 / WN1424 + WN4143$289.762026-10-29T01:04:33Z
2027-01-21 → 2027-02-04Delta Air LinesDL346 + DL1329 / DL2791 + DL2849$332.502026-10-29T01:04:33Z
2027-01-21 → 2027-02-04United AirlinesUA2787 / UA1281$323.002026-10-29T01:04:33Z
2027-01-21 → 2027-02-04Frontier AirlinesF91776 / F91101 + F93599$180.502026-10-29T01:04:33Z
2027-01-21 → 2027-02-04Frontier AirlinesF93566 + F92022 / F91101 + F93599$190.002026-10-29T01:04:33Z
2027-01-21 → 2027-02-04Southwest AirlinesWN2170 + WN4923 / WN1424 + WN4143$289.762026-10-29T01:04:33Z
2027-01-21 → 2027-02-04Southwest AirlinesWN2384 / WN1424 + WN4143$294.512026-10-29T01:04:33Z

2027-01-21 → 2027-02-04 · $171.00

  • Frontier Airlines F91776: DEN 2027-01-21 23:31:00 → PHL 2027-01-22 05:11:00; nonstop; 220 minutes. Local airport times.
  • Frontier Airlines F91876: PHL 2027-02-04 20:19:00 → DEN 2027-02-04 22:36:00; nonstop; 257 minutes. Local airport times.

2027-01-21 → 2027-02-04 · $313.50

  • American Airlines AA1121: DEN 2027-01-21 14:45:00 → PHL 2027-01-21 20:18:00; nonstop; 213 minutes. Local airport times.
  • American Airlines AA1313: PHL 2027-02-04 09:05:00 → DEN 2027-02-04 11:35:00; nonstop; 270 minutes. Local airport times.

2027-01-21 → 2027-02-04 · $323.00

  • United Airlines UA2275: DEN 2027-01-21 18:08:00 → PHL 2027-01-21 23:39:00; nonstop; 211 minutes. Local airport times.
  • United Airlines UA1281: PHL 2027-02-04 09:55:00 → DEN 2027-02-04 12:15:00; nonstop; 260 minutes. Local airport times.

2027-01-21 → 2027-02-04 · $289.76

  • Southwest Airlines WN1573 / WN2825: DEN 2027-01-21 14:25:00 → PHL 2027-01-21 22:10:00; 1 stop(s) via BNA; 345 minutes. Local airport times.
    • WN1573: DEN 2027-01-21 14:25:00 → BNA 2027-01-21 17:45:00; layover at BNA: 80 minutes.
    • WN2825: BNA 2027-01-21 19:05:00 → PHL 2027-01-21 22:10:00.
  • Southwest Airlines WN1424 / WN4143: PHL 2027-02-04 14:45:00 → DEN 2027-02-04 19:10:00; 1 stop(s) via STL; 385 minutes. Local airport times.
    • WN1424: PHL 2027-02-04 14:45:00 → STL 2027-02-04 16:20:00; layover at STL: 85 minutes.
    • WN4143: STL 2027-02-04 17:45:00 → DEN 2027-02-04 19:10:00.

2027-01-21 → 2027-02-04 · $332.50

  • Delta Air Lines DL346 / DL1329: DEN 2027-01-21 10:46:00 → PHL 2027-01-21 18:32:00; 1 stop(s) via ATL; 346 minutes. Local airport times.
    • DL346: DEN 2027-01-21 10:46:00 → ATL 2027-01-21 15:33:00; layover at ATL: 61 minutes.
    • DL1329: ATL 2027-01-21 16:34:00 → PHL 2027-01-21 18:32:00.
  • Delta Air Lines DL2791 / DL2849: PHL 2027-02-04 05:34:00 → DEN 2027-02-04 10:03:00; 1 stop(s) via MSP; 389 minutes. Local airport times.
    • DL2791: PHL 2027-02-04 05:34:00 → MSP 2027-02-04 07:35:00; layover at MSP: 75 minutes.
    • DL2849: MSP 2027-02-04 08:50:00 → DEN 2027-02-04 10:03:00.

2027-01-21 → 2027-02-04 · $323.00

  • United Airlines UA2787: DEN 2027-01-21 14:00:00 → PHL 2027-01-21 19:31:00; nonstop; 211 minutes. Local airport times.
  • United Airlines UA1281: PHL 2027-02-04 09:55:00 → DEN 2027-02-04 12:15:00; nonstop; 260 minutes. Local airport times.

2027-01-21 → 2027-02-04 · $180.50

  • Frontier Airlines F91776: DEN 2027-01-21 23:59:00 → PHL 2027-01-22 05:25:00; nonstop; 206 minutes. Local airport times.
  • Frontier Airlines F91101 / F93599: PHL 2027-02-04 16:38:00 → DEN 2027-02-04 21:57:00; 1 stop(s) via ATL; 439 minutes. Local airport times.
    • F91101: PHL 2027-02-04 16:38:00 → ATL 2027-02-04 19:04:00; layover at ATL: 70 minutes.
    • F93599: ATL 2027-02-04 20:14:00 → DEN 2027-02-04 21:57:00.

2027-01-21 → 2027-02-04 · $190.00

  • Frontier Airlines F93566 / F92022: DEN 2027-01-21 08:59:00 → PHL 2027-01-21 16:43:00; 1 stop(s) via DTW; 344 minutes. Local airport times.
    • F93566: DEN 2027-01-21 08:59:00 → DTW 2027-01-21 13:48:00; layover at DTW: 73 minutes.
    • F92022: DTW 2027-01-21 15:01:00 → PHL 2027-01-21 16:43:00.
  • Frontier Airlines F91101 / F93599: PHL 2027-02-04 16:38:00 → DEN 2027-02-04 21:57:00; 1 stop(s) via ATL; 439 minutes. Local airport times.
    • F91101: PHL 2027-02-04 16:38:00 → ATL 2027-02-04 19:04:00; layover at ATL: 70 minutes.
    • F93599: ATL 2027-02-04 20:14:00 → DEN 2027-02-04 21:57:00.

2027-01-21 → 2027-02-04 · $289.76

  • Southwest Airlines WN2170 / WN4923: DEN 2027-01-21 15:40:00 → PHL 2027-01-21 23:20:00; 1 stop(s) via STL; 340 minutes. Local airport times.
    • WN2170: DEN 2027-01-21 15:40:00 → STL 2027-01-21 18:35:00; layover at STL: 95 minutes.
    • WN4923: STL 2027-01-21 20:10:00 → PHL 2027-01-21 23:20:00.
  • Southwest Airlines WN1424 / WN4143: PHL 2027-02-04 14:45:00 → DEN 2027-02-04 19:10:00; 1 stop(s) via STL; 385 minutes. Local airport times.
    • WN1424: PHL 2027-02-04 14:45:00 → STL 2027-02-04 16:20:00; layover at STL: 85 minutes.
    • WN4143: STL 2027-02-04 17:45:00 → DEN 2027-02-04 19:10:00.

2027-01-21 → 2027-02-04 · $294.51

  • Southwest Airlines WN2384: DEN 2027-01-21 14:05:00 → PHL 2027-01-21 19:25:00; nonstop; 200 minutes. Local airport times.
  • Southwest Airlines WN1424 / WN4143: PHL 2027-02-04 14:45:00 → DEN 2027-02-04 19:10:00; 1 stop(s) via STL; 385 minutes. Local airport times.
    • WN1424: PHL 2027-02-04 14:45:00 → STL 2027-02-04 16:20:00; layover at STL: 85 minutes.
    • WN4143: STL 2027-02-04 17:45:00 → DEN 2027-02-04 19:10:00.

More dates for this route