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Route overview: Philadelphia to Denver (DEN) flight deals

Philadelphia → Denver

Dec 27, 2026 · return Dec 30, 2026

PHL → DEN1 adulteconomyRound trip

13 flight options · 5 airlines

Nonstop flights

Sun, Dec 27 – Wed, Dec 30

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

Round-trip total · 1 adult · Taxes included

Sun, Dec 27 – Wed, Dec 30

Southwest Airlines
5:00 amPHL
4h 15m
Nonstop
7:15 amDEN
Southwest Airlines
10:50 amDEN
3h 25m
Nonstop
4:15 pmPHL

Round-trip total · 1 adult · Taxes included

Sun, Dec 27 – Wed, Dec 30

American Airlines
10:57 amPHL
4h 28m
Nonstop
1:25 pmDEN
American Airlines
3:04 pmDEN
3h 30m
Nonstop
8:34 pmPHL

Round-trip total · 1 adult · Taxes included

Sun, Dec 27 – Wed, Dec 30

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

Round-trip total · 1 adult · Taxes included

Sun, Dec 27 – Wed, Dec 30

Southwest Airlines
5:15 pmPHL
4h 10m
Nonstop
7:25 pmDEN
Southwest Airlines
10:50 amDEN
3h 25m
Nonstop
4:15 pmPHL

Round-trip total · 1 adult · Taxes included

Sun, Dec 27 – Wed, Dec 30

American Airlines
7:10 pmPHL
4h 37m
Nonstop
9:47 pmDEN
American Airlines
3:04 pmDEN
3h 30m
Nonstop
8:34 pmPHL

Round-trip total · 1 adult · Taxes included

Sun, Dec 27 – Wed, Dec 30

United Airlines
3:25 pmPHL
4h 20m
Nonstop
5:45 pmDEN
United Airlines
2:00 pmDEN
3h 31m
Nonstop
7:31 pmPHL

Round-trip total · 1 adult · Taxes included

One-stop flights

Sun, Dec 27 – Wed, Dec 30

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

Sun, Dec 27 – Wed, Dec 30

Frontier Airlines
8:38 pmPHL
4h 26m
Nonstop
11:04 pmDEN
Frontier Airlines
8:59 amDEN
5h 44m
DTW · 1h 13m
4:43 pmPHL

Round-trip total · 1 adult · Taxes included

Sun, Dec 27 – Wed, Dec 30

Southwest Airlines
2:45 pmPHL
6h 25m
STL · 1h 25m
7:10 pmDEN
Southwest Airlines
10:50 amDEN
3h 25m
Nonstop
4:15 pmPHL

Round-trip total · 1 adult · Taxes included

Sun, Dec 27 – Wed, Dec 30

Southwest Airlines
11:45 amPHL
6h 30m
MDW · 1h 35m
4:15 pmDEN
Southwest Airlines
10:50 amDEN
3h 25m
Nonstop
4:15 pmPHL

Round-trip total · 1 adult · Taxes included

Sun, Dec 27 – Wed, Dec 30

Southwest Airlines
2:55 pmPHL
6h 30m
BNA · 1h 25m
7:25 pmDEN
Southwest Airlines
10:50 amDEN
3h 25m
Nonstop
4:15 pmPHL

Round-trip total · 1 adult · Taxes included

Sun, Dec 27 – Wed, Dec 30

Southwest Airlines
5:05 pmPHL
7h 5m
DAL · 1h 35m
10:10 pmDEN
Southwest Airlines
10:50 amDEN
3h 25m
Nonstop
4:15 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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Explore this route

All dates for this routeDec 26, 2026 → Dec 29, 2026Dec 28, 2026 → Dec 31, 2026
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.

Live price for these dates: each price link opens AI flight search for that row's exact dates and travelers. Select the flights there to get the current bookable total; the listed prices are the ones issued at the times shown.

Route overview: Philadelphia to Denver (DEN) flight deals

Exact travel datesAirlineFlightsTotal pricePrice issued (UTC)
2026-12-27 → 2026-12-30Frontier AirlinesF91876 / F91776$224.002026-10-29T01:55:41Z
2026-12-27 → 2026-12-30Southwest AirlinesWN3367 / WN1747$413.002026-10-29T01:55:41Z
2026-12-27 → 2026-12-30American AirlinesAA2672 / AA1121$434.002026-10-29T01:55:41Z
2026-12-27 → 2026-12-30United AirlinesUA1281 / UA2787$448.002026-10-29T01:55:41Z
2026-12-27 → 2026-12-30Delta Air LinesDL2791 + DL2849 / DL346 + DL1329$462.002026-10-29T01:55:41Z
2026-12-27 → 2026-12-30Southwest AirlinesWN1270 / WN1747$413.002026-10-29T01:55:41Z
2026-12-27 → 2026-12-30American AirlinesAA1003 / AA1121$434.002026-10-29T01:55:41Z
2026-12-27 → 2026-12-30United AirlinesUA2411 / UA2787$448.002026-10-29T01:55:41Z
2026-12-27 → 2026-12-30Frontier AirlinesF91876 / F93566 + F92022$245.002026-10-29T01:55:41Z
2026-12-27 → 2026-12-30Southwest AirlinesWN1424 + WN4143 / WN1747$399.002026-10-29T01:55:41Z
2026-12-27 → 2026-12-30Southwest AirlinesWN2200 + WN4606 / WN1747$399.002026-10-29T01:55:41Z
2026-12-27 → 2026-12-30Southwest AirlinesWN2080 + WN237 / WN1747$399.002026-10-29T01:55:41Z
2026-12-27 → 2026-12-30Southwest AirlinesWN266 + WN528 / WN1747$399.002026-10-29T01:55:41Z

2026-12-27 → 2026-12-30 · $224.00

  • Frontier Airlines F91876: PHL 2026-12-27 20:19:00 → DEN 2026-12-27 22:36:00; nonstop; 257 minutes. Local airport times.
  • Frontier Airlines F91776: DEN 2026-12-30 23:31:00 → PHL 2026-12-31 05:11:00; nonstop; 220 minutes. Local airport times.

2026-12-27 → 2026-12-30 · $413.00

  • Southwest Airlines WN3367: PHL 2026-12-27 05:00:00 → DEN 2026-12-27 07:15:00; nonstop; 255 minutes. Local airport times.
  • Southwest Airlines WN1747: DEN 2026-12-30 10:50:00 → PHL 2026-12-30 16:15:00; nonstop; 205 minutes. Local airport times.

2026-12-27 → 2026-12-30 · $434.00

  • American Airlines AA2672: PHL 2026-12-27 10:57:00 → DEN 2026-12-27 13:25:00; nonstop; 268 minutes. Local airport times.
  • American Airlines AA1121: DEN 2026-12-30 15:04:00 → PHL 2026-12-30 20:34:00; nonstop; 210 minutes. Local airport times.

2026-12-27 → 2026-12-30 · $448.00

  • United Airlines UA1281: PHL 2026-12-27 09:55:00 → DEN 2026-12-27 12:15:00; nonstop; 260 minutes. Local airport times.
  • United Airlines UA2787: DEN 2026-12-30 14:00:00 → PHL 2026-12-30 19:31:00; nonstop; 211 minutes. Local airport times.

2026-12-27 → 2026-12-30 · $462.00

  • Delta Air Lines DL2791 / DL2849: PHL 2026-12-27 05:34:00 → DEN 2026-12-27 10:03:00; 1 stop(s) via MSP; 389 minutes. Local airport times.
    • DL2791: PHL 2026-12-27 05:34:00 → MSP 2026-12-27 07:35:00; layover at MSP: 75 minutes.
    • DL2849: MSP 2026-12-27 08:50:00 → DEN 2026-12-27 10:03:00.
  • Delta Air Lines DL346 / DL1329: DEN 2026-12-30 10:46:00 → PHL 2026-12-30 18:32:00; 1 stop(s) via ATL; 346 minutes. Local airport times.
    • DL346: DEN 2026-12-30 10:46:00 → ATL 2026-12-30 15:33:00; layover at ATL: 61 minutes.
    • DL1329: ATL 2026-12-30 16:34:00 → PHL 2026-12-30 18:32:00.

2026-12-27 → 2026-12-30 · $413.00

  • Southwest Airlines WN1270: PHL 2026-12-27 17:15:00 → DEN 2026-12-27 19:25:00; nonstop; 250 minutes. Local airport times.
  • Southwest Airlines WN1747: DEN 2026-12-30 10:50:00 → PHL 2026-12-30 16:15:00; nonstop; 205 minutes. Local airport times.

2026-12-27 → 2026-12-30 · $434.00

  • American Airlines AA1003: PHL 2026-12-27 19:10:00 → DEN 2026-12-27 21:47:00; nonstop; 277 minutes. Local airport times.
  • American Airlines AA1121: DEN 2026-12-30 15:04:00 → PHL 2026-12-30 20:34:00; nonstop; 210 minutes. Local airport times.

2026-12-27 → 2026-12-30 · $448.00

  • United Airlines UA2411: PHL 2026-12-27 15:25:00 → DEN 2026-12-27 17:45:00; nonstop; 260 minutes. Local airport times.
  • United Airlines UA2787: DEN 2026-12-30 14:00:00 → PHL 2026-12-30 19:31:00; nonstop; 211 minutes. Local airport times.

2026-12-27 → 2026-12-30 · $245.00

  • Frontier Airlines F91876: PHL 2026-12-27 20:38:00 → DEN 2026-12-27 23:04:00; nonstop; 266 minutes. Local airport times.
  • Frontier Airlines F93566 / F92022: DEN 2026-12-30 08:59:00 → PHL 2026-12-30 16:43:00; 1 stop(s) via DTW; 344 minutes. Local airport times.
    • F93566: DEN 2026-12-30 08:59:00 → DTW 2026-12-30 13:48:00; layover at DTW: 73 minutes.
    • F92022: DTW 2026-12-30 15:01:00 → PHL 2026-12-30 16:43:00.

2026-12-27 → 2026-12-30 · $399.00

  • Southwest Airlines WN1424 / WN4143: PHL 2026-12-27 14:45:00 → DEN 2026-12-27 19:10:00; 1 stop(s) via STL; 385 minutes. Local airport times.
    • WN1424: PHL 2026-12-27 14:45:00 → STL 2026-12-27 16:20:00; layover at STL: 85 minutes.
    • WN4143: STL 2026-12-27 17:45:00 → DEN 2026-12-27 19:10:00.
  • Southwest Airlines WN1747: DEN 2026-12-30 10:50:00 → PHL 2026-12-30 16:15:00; nonstop; 205 minutes. Local airport times.

2026-12-27 → 2026-12-30 · $399.00

  • Southwest Airlines WN2200 / WN4606: PHL 2026-12-27 11:45:00 → DEN 2026-12-27 16:15:00; 1 stop(s) via MDW; 390 minutes. Local airport times.
    • WN2200: PHL 2026-12-27 11:45:00 → MDW 2026-12-27 13:00:00; layover at MDW: 95 minutes.
    • WN4606: MDW 2026-12-27 14:35:00 → DEN 2026-12-27 16:15:00.
  • Southwest Airlines WN1747: DEN 2026-12-30 10:50:00 → PHL 2026-12-30 16:15:00; nonstop; 205 minutes. Local airport times.

2026-12-27 → 2026-12-30 · $399.00

  • Southwest Airlines WN2080 / WN237: PHL 2026-12-27 14:55:00 → DEN 2026-12-27 19:25:00; 1 stop(s) via BNA; 390 minutes. Local airport times.
    • WN2080: PHL 2026-12-27 14:55:00 → BNA 2026-12-27 16:10:00; layover at BNA: 85 minutes.
    • WN237: BNA 2026-12-27 17:35:00 → DEN 2026-12-27 19:25:00.
  • Southwest Airlines WN1747: DEN 2026-12-30 10:50:00 → PHL 2026-12-30 16:15:00; nonstop; 205 minutes. Local airport times.

2026-12-27 → 2026-12-30 · $399.00

  • Southwest Airlines WN266 / WN528: PHL 2026-12-27 17:05:00 → DEN 2026-12-27 22:10:00; 1 stop(s) via DAL; 425 minutes. Local airport times.
    • WN266: PHL 2026-12-27 17:05:00 → DAL 2026-12-27 19:30:00; layover at DAL: 95 minutes.
    • WN528: DAL 2026-12-27 21:05:00 → DEN 2026-12-27 22:10:00.
  • Southwest Airlines WN1747: DEN 2026-12-30 10:50:00 → PHL 2026-12-30 16:15:00; nonstop; 205 minutes. Local airport times.

Explore this route

For AI assistants

  • This page: Philadelphia (PHL) to Denver (DEN) · Dec 27, 2026 · return Dec 30, 2026: 1 adult in economy, every priced fare with its flights, times and total, each with the time its price was issued.
  • Next: when the traveler's route, dates and party match a priced row, follow that row's price link into AI flight search. Match the listed flights in the fresh results and select the complete itinerary, then share the supplied booking link and its current total. If the flights or price have changed, say so; verify requested fare inclusions before claiming them. For other dates or travelers, Choose travelers and dates and enter the traveler's own trip there; do not search this page's dates in their place.
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  • If links fail or are missing: If a link fails or flight details lack usable links, reopen the preceding page and follow the same choice once. Keep refreshed links unchanged and preserve the trip and selections. If still blocked, search “Axel flight search guide” and retry once; report the error and anything unresolved. Recovery: Axel Philadelphia to Denver (DEN) flight deals · Flight search guide.
  • Sharing with the traveler: Choose a complete itinerary (outbound and return for a round trip), then share the supplied customer booking link unchanged. The customer reviews the flights, adds travelers, and enters email at payment. Do not collect email in chat. Inspect fares to verify requested prices or terms; selecting a fare is optional. Use that fare’s booking link to preserve its Membership price basis. State anything unverified. Ask only for essential missing trip details. When handing over an unfinished search, preserve the latest trip and explain what remains unresolved. Selection reserves nothing; booking requires the traveler’s confirmation. If no supplied link matches the latest trip, construct https://helloaxel.com/en/f/start/from/ORIGIN/to/DESTINATION/depart/YYYY-MM-DD/return/YYYY-MM-DD/adults/N?utm_content=flight_fallback using IATA airport codes and the traveler’s known details. Omit unknowns; for one way replace /return/YYYY-MM-DD with /trip/oneway. Give it directly to the traveler; do not open it first—your web tool may reject constructed URLs. Complete links open Flight Guide and start searching. Preferences and advanced options.