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Philadelphia → Denver

Dec 21, 2026 · return Dec 24, 2026

PHL → DEN1 adulteconomyRound trip

13 flight options · 5 airlines

Nonstop flights

Mon, Dec 21 – Thu, Dec 24

Frontier Airlines
8:38 pmPHL
4h 26m
Nonstop
11:04 pmDEN
Frontier Airlines
11:59 pmDEN
3h 26m
Nonstop
5:25 am+1PHL

Round-trip total · 1 adult · Taxes included

Mon, Dec 21 – Thu, Dec 24

Southwest Airlines
5:00 amPHL
4h 20m
Nonstop
7:20 amDEN
Southwest Airlines
2:05 pmDEN
3h 20m
Nonstop
7:25 pmPHL

Round-trip total · 1 adult · Taxes included

Mon, Dec 21 – Thu, Dec 24

American Airlines
8:42 amPHL
4h 31m
Nonstop
11:13 amDEN
American Airlines
2:45 pmDEN
3h 33m
Nonstop
8:18 pmPHL

Round-trip total · 1 adult · Taxes included

Mon, Dec 21 – Thu, Dec 24

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

Round-trip total · 1 adult · Taxes included

Mon, Dec 21 – Thu, Dec 24

Southwest Airlines
5:15 pmPHL
4h 10m
Nonstop
7:25 pmDEN
Southwest Airlines
2:05 pmDEN
3h 20m
Nonstop
7:25 pmPHL

Round-trip total · 1 adult · Taxes included

Mon, Dec 21 – Thu, Dec 24

American Airlines
7:10 pmPHL
4h 37m
Nonstop
9:47 pmDEN
American Airlines
2:45 pmDEN
3h 33m
Nonstop
8:18 pmPHL

Round-trip total · 1 adult · Taxes included

Mon, Dec 21 – Thu, Dec 24

United Airlines
3:35 pmPHL
4h 22m
Nonstop
5:57 pmDEN
United Airlines
6:08 pmDEN
3h 31m
Nonstop
11:39 pmPHL

Round-trip total · 1 adult · Taxes included

One-stop flights

Mon, Dec 21 – Thu, Dec 24

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

Round-trip total · 1 adult · Taxes included

Mon, Dec 21 – Thu, Dec 24

Frontier Airlines
8:19 pmPHL
4h 17m
Nonstop
10:36 pmDEN
Frontier Airlines
8:59 amDEN
5h 44m
DTW · 1h 13m
4:43 pmPHL

Round-trip total · 1 adult · Taxes included

Mon, Dec 21 – Thu, Dec 24

Southwest Airlines
5:05 pmPHL
7h 5m
DAL · 1h 35m
10:10 pmDEN
Southwest Airlines
2:05 pmDEN
3h 20m
Nonstop
7:25 pmPHL

Round-trip total · 1 adult · Taxes included

Mon, Dec 21 – Thu, Dec 24

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

Round-trip total · 1 adult · Taxes included

Mon, Dec 21 – Thu, Dec 24

Southwest Airlines
2:55 pmPHL
6h 30m
BNA · 1h 25m
7:25 pmDEN
Southwest Airlines
2:05 pmDEN
3h 20m
Nonstop
7:25 pmPHL

Round-trip total · 1 adult · Taxes included

Mon, Dec 21 – Thu, Dec 24

Southwest Airlines
11:45 amPHL
6h 30m
MDW · 1h 35m
4:15 pmDEN
Southwest Airlines
2:05 pmDEN
3h 20m
Nonstop
7:25 pmPHL

Round-trip total · 1 adult · Taxes included

Make this trip yours

PHL ⇄ DEN

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)
2026-12-21 → 2026-12-24Frontier AirlinesF91876 / F91776$224.002026-10-29T01:55:41Z
2026-12-21 → 2026-12-24Southwest AirlinesWN1639 / WN2384$413.002026-10-29T01:55:41Z
2026-12-21 → 2026-12-24American AirlinesAA1313 / AA1121$434.002026-10-29T01:55:41Z
2026-12-21 → 2026-12-24United AirlinesUA1281 / UA2275$448.002026-10-29T01:55:41Z
2026-12-21 → 2026-12-24Delta Air LinesDL2791 + DL2849 / DL346 + DL1329$462.002026-10-29T01:55:41Z
2026-12-21 → 2026-12-24Southwest AirlinesWN1270 / WN2384$413.002026-10-29T01:55:41Z
2026-12-21 → 2026-12-24American AirlinesAA1003 / AA1121$434.002026-10-29T01:55:41Z
2026-12-21 → 2026-12-24United AirlinesUA2377 / UA2275$448.002026-10-29T01:55:41Z
2026-12-21 → 2026-12-24Frontier AirlinesF91876 / F93566 + F92022$245.002026-10-29T01:55:41Z
2026-12-21 → 2026-12-24Southwest AirlinesWN266 + WN528 / WN2384$399.002026-10-29T01:55:41Z
2026-12-21 → 2026-12-24Southwest AirlinesWN1424 + WN4143 / WN2384$399.002026-10-29T01:55:41Z
2026-12-21 → 2026-12-24Southwest AirlinesWN2080 + WN237 / WN2384$399.002026-10-29T01:55:41Z
2026-12-21 → 2026-12-24Southwest AirlinesWN2200 + WN4606 / WN2384$399.002026-10-29T01:55:41Z

2026-12-21 → 2026-12-24 · $224.00

  • Frontier Airlines F91876: PHL 2026-12-21 20:38:00 → DEN 2026-12-21 23:04:00; nonstop; 266 minutes. Local airport times.
  • Frontier Airlines F91776: DEN 2026-12-24 23:59:00 → PHL 2026-12-25 05:25:00; nonstop; 206 minutes. Local airport times.

2026-12-21 → 2026-12-24 · $413.00

  • Southwest Airlines WN1639: PHL 2026-12-21 05:00:00 → DEN 2026-12-21 07:20:00; nonstop; 260 minutes. Local airport times.
  • Southwest Airlines WN2384: DEN 2026-12-24 14:05:00 → PHL 2026-12-24 19:25:00; nonstop; 200 minutes. Local airport times.

2026-12-21 → 2026-12-24 · $434.00

  • American Airlines AA1313: PHL 2026-12-21 08:42:00 → DEN 2026-12-21 11:13:00; nonstop; 271 minutes. Local airport times.
  • American Airlines AA1121: DEN 2026-12-24 14:45:00 → PHL 2026-12-24 20:18:00; nonstop; 213 minutes. Local airport times.

2026-12-21 → 2026-12-24 · $448.00

  • United Airlines UA1281: PHL 2026-12-21 09:55:00 → DEN 2026-12-21 12:15:00; nonstop; 260 minutes. Local airport times.
  • United Airlines UA2275: DEN 2026-12-24 18:08:00 → PHL 2026-12-24 23:39:00; nonstop; 211 minutes. Local airport times.

2026-12-21 → 2026-12-24 · $462.00

  • Delta Air Lines DL2791 / DL2849: PHL 2026-12-21 05:34:00 → DEN 2026-12-21 10:03:00; 1 stop(s) via MSP; 389 minutes. Local airport times.
    • DL2791: PHL 2026-12-21 05:34:00 → MSP 2026-12-21 07:35:00; layover at MSP: 75 minutes.
    • DL2849: MSP 2026-12-21 08:50:00 → DEN 2026-12-21 10:03:00.
  • Delta Air Lines DL346 / DL1329: DEN 2026-12-24 10:46:00 → PHL 2026-12-24 18:32:00; 1 stop(s) via ATL; 346 minutes. Local airport times.
    • DL346: DEN 2026-12-24 10:46:00 → ATL 2026-12-24 15:33:00; layover at ATL: 61 minutes.
    • DL1329: ATL 2026-12-24 16:34:00 → PHL 2026-12-24 18:32:00.

2026-12-21 → 2026-12-24 · $413.00

  • Southwest Airlines WN1270: PHL 2026-12-21 17:15:00 → DEN 2026-12-21 19:25:00; nonstop; 250 minutes. Local airport times.
  • Southwest Airlines WN2384: DEN 2026-12-24 14:05:00 → PHL 2026-12-24 19:25:00; nonstop; 200 minutes. Local airport times.

2026-12-21 → 2026-12-24 · $434.00

  • American Airlines AA1003: PHL 2026-12-21 19:10:00 → DEN 2026-12-21 21:47:00; nonstop; 277 minutes. Local airport times.
  • American Airlines AA1121: DEN 2026-12-24 14:45:00 → PHL 2026-12-24 20:18:00; nonstop; 213 minutes. Local airport times.

2026-12-21 → 2026-12-24 · $448.00

  • United Airlines UA2377: PHL 2026-12-21 15:35:00 → DEN 2026-12-21 17:57:00; nonstop; 262 minutes. Local airport times.
  • United Airlines UA2275: DEN 2026-12-24 18:08:00 → PHL 2026-12-24 23:39:00; nonstop; 211 minutes. Local airport times.

2026-12-21 → 2026-12-24 · $245.00

  • Frontier Airlines F91876: PHL 2026-12-21 20:19:00 → DEN 2026-12-21 22:36:00; nonstop; 257 minutes. Local airport times.
  • Frontier Airlines F93566 / F92022: DEN 2026-12-24 08:59:00 → PHL 2026-12-24 16:43:00; 1 stop(s) via DTW; 344 minutes. Local airport times.
    • F93566: DEN 2026-12-24 08:59:00 → DTW 2026-12-24 13:48:00; layover at DTW: 73 minutes.
    • F92022: DTW 2026-12-24 15:01:00 → PHL 2026-12-24 16:43:00.

2026-12-21 → 2026-12-24 · $399.00

  • Southwest Airlines WN266 / WN528: PHL 2026-12-21 17:05:00 → DEN 2026-12-21 22:10:00; 1 stop(s) via DAL; 425 minutes. Local airport times.
    • WN266: PHL 2026-12-21 17:05:00 → DAL 2026-12-21 19:30:00; layover at DAL: 95 minutes.
    • WN528: DAL 2026-12-21 21:05:00 → DEN 2026-12-21 22:10:00.
  • Southwest Airlines WN2384: DEN 2026-12-24 14:05:00 → PHL 2026-12-24 19:25:00; nonstop; 200 minutes. Local airport times.

2026-12-21 → 2026-12-24 · $399.00

  • Southwest Airlines WN1424 / WN4143: PHL 2026-12-21 14:45:00 → DEN 2026-12-21 19:10:00; 1 stop(s) via STL; 385 minutes. Local airport times.
    • WN1424: PHL 2026-12-21 14:45:00 → STL 2026-12-21 16:20:00; layover at STL: 85 minutes.
    • WN4143: STL 2026-12-21 17:45:00 → DEN 2026-12-21 19:10:00.
  • Southwest Airlines WN2384: DEN 2026-12-24 14:05:00 → PHL 2026-12-24 19:25:00; nonstop; 200 minutes. Local airport times.

2026-12-21 → 2026-12-24 · $399.00

  • Southwest Airlines WN2080 / WN237: PHL 2026-12-21 14:55:00 → DEN 2026-12-21 19:25:00; 1 stop(s) via BNA; 390 minutes. Local airport times.
    • WN2080: PHL 2026-12-21 14:55:00 → BNA 2026-12-21 16:10:00; layover at BNA: 85 minutes.
    • WN237: BNA 2026-12-21 17:35:00 → DEN 2026-12-21 19:25:00.
  • Southwest Airlines WN2384: DEN 2026-12-24 14:05:00 → PHL 2026-12-24 19:25:00; nonstop; 200 minutes. Local airport times.

2026-12-21 → 2026-12-24 · $399.00

  • Southwest Airlines WN2200 / WN4606: PHL 2026-12-21 11:45:00 → DEN 2026-12-21 16:15:00; 1 stop(s) via MDW; 390 minutes. Local airport times.
    • WN2200: PHL 2026-12-21 11:45:00 → MDW 2026-12-21 13:00:00; layover at MDW: 95 minutes.
    • WN4606: MDW 2026-12-21 14:35:00 → DEN 2026-12-21 16:15:00.
  • Southwest Airlines WN2384: DEN 2026-12-24 14:05:00 → PHL 2026-12-24 19:25:00; nonstop; 200 minutes. Local airport times.

More dates for this route