Houston (IAH) to Philadelphia (PHL), Dec 18–20, 2026: from $139 one way

Houston (IAH) to Philadelphia (PHL), Dec 18–20, 2026: from $139 one way on Axel, checked Oct 29, 2026. Lowest published fare: $139 one way, Axel-exclusive, Frontier Airlines, 1 stop, Dec 18, 2026, 1 adult, economy, checked Oct 29, 2026. Flights for 1 adult in economy. Prices are total for all travelers in USD, including required taxes. Basic economy may apply.

See flights for these dates: each price link opens AI flight search for that row's exact dates and travelers. Select the complete itinerary there.

Route overview: Houston to Philadelphia (PHL) flight deals

2026-12-18 · one way · Axel-exclusive $250.60

• American Airlines AA3074: IAH 2026-12-18 13:05:00 → PHL 2026-12-18 17:22:00; nonstop; 197 minutes. Local airport times.

2026-12-19 · one way · Axel-exclusive $264.60

• United Airlines UA2009: IAH 2026-12-19 07:20:00 → PHL 2026-12-19 11:36:00; nonstop; 196 minutes. Local airport times.

2026-12-19 · one way · Axel-exclusive $138.60

• Frontier Airlines F91958 / F92022: IAH 2026-12-19 09:53:00 → PHL 2026-12-19 16:43:00; 1 stop(s) via DTW; 350 minutes. Local airport times.
  • F91958: IAH 2026-12-19 09:53:00 → DTW 2026-12-19 13:45:00; layover at DTW: 76 minutes.
  • F92022: DTW 2026-12-19 15:01:00 → PHL 2026-12-19 16:43:00.

2026-12-19 · one way · Axel-exclusive $236.60

• Delta Air Lines DL1389 / DL2331: IAH 2026-12-19 05:02:00 → PHL 2026-12-19 11:37:00; 1 stop(s) via DTW; 335 minutes. Local airport times.
  • DL1389: IAH 2026-12-19 05:02:00 → DTW 2026-12-19 08:49:00; layover at DTW: 71 minutes.
  • DL2331: DTW 2026-12-19 10:00:00 → PHL 2026-12-19 11:37:00.

2026-12-20 · one way · Axel-exclusive $250.60

• American Airlines AA3074: IAH 2026-12-20 13:05:00 → PHL 2026-12-20 17:22:00; nonstop; 197 minutes. Local airport times.

2026-12-19 · one way · Axel-exclusive $250.60

• American Airlines AA3074: IAH 2026-12-19 13:05:00 → PHL 2026-12-19 17:22:00; nonstop; 197 minutes. Local airport times.

2026-12-19 · one way · Axel-exclusive $250.60

• American Airlines AA3124: IAH 2026-12-19 07:00:00 → PHL 2026-12-19 11:15:00; nonstop; 195 minutes. Local airport times.

2026-12-20 · one way · Axel-exclusive $250.60

• American Airlines AA3124: IAH 2026-12-20 07:00:00 → PHL 2026-12-20 11:15:00; nonstop; 195 minutes. Local airport times.

2026-12-18 · one way · Axel-exclusive $250.60

• American Airlines AA3124: IAH 2026-12-18 07:00:00 → PHL 2026-12-18 11:15:00; nonstop; 195 minutes. Local airport times.

2026-12-18 · one way · Axel-exclusive $264.60

• United Airlines UA2009: IAH 2026-12-18 07:20:00 → PHL 2026-12-18 11:35:00; nonstop; 195 minutes. Local airport times.

2026-12-20 · one way · Axel-exclusive $264.60

• United Airlines UA1966: IAH 2026-12-20 07:20:00 → PHL 2026-12-20 11:34:00; nonstop; 194 minutes. Local airport times.

2026-12-19 · one way · Axel-exclusive $264.60

• United Airlines UA551: IAH 2026-12-19 12:10:00 → PHL 2026-12-19 16:30:00; nonstop; 200 minutes. Local airport times.

2026-12-20 · one way · Axel-exclusive $264.60

• United Airlines UA1663: IAH 2026-12-20 18:35:00 → PHL 2026-12-20 22:56:00; nonstop; 201 minutes. Local airport times.

2026-12-18 · one way · Axel-exclusive $264.60

• United Airlines UA1663: IAH 2026-12-18 18:35:00 → PHL 2026-12-18 22:56:00; nonstop; 201 minutes. Local airport times.

2026-12-18 · one way · Axel-exclusive $138.60

• Frontier Airlines F92396 / F91384: IAH 2026-12-18 08:52:00 → PHL 2026-12-18 15:36:00; 1 stop(s) via CLT; 344 minutes. Local airport times.
  • F92396: IAH 2026-12-18 08:52:00 → CLT 2026-12-18 12:24:00; layover at CLT: 85 minutes.
  • F91384: CLT 2026-12-18 13:49:00 → PHL 2026-12-18 15:36:00.

2026-12-20 · one way · Axel-exclusive $138.60

• Frontier Airlines F91958 / F92022: IAH 2026-12-20 09:53:00 → PHL 2026-12-20 16:43:00; 1 stop(s) via DTW; 350 minutes. Local airport times.
  • F91958: IAH 2026-12-20 09:53:00 → DTW 2026-12-20 13:45:00; layover at DTW: 76 minutes.
  • F92022: DTW 2026-12-20 15:01:00 → PHL 2026-12-20 16:43:00.

2026-12-18 · one way · Axel-exclusive $138.60

• Frontier Airlines F91958 / F92022: IAH 2026-12-18 09:53:00 → PHL 2026-12-18 16:43:00; 1 stop(s) via DTW; 350 minutes. Local airport times.
  • F91958: IAH 2026-12-18 09:53:00 → DTW 2026-12-18 13:45:00; layover at DTW: 76 minutes.
  • F92022: DTW 2026-12-18 15:01:00 → PHL 2026-12-18 16:43:00.

2026-12-20 · one way · Axel-exclusive $138.60

• Frontier Airlines F92396 / F91384: IAH 2026-12-20 08:52:00 → PHL 2026-12-20 15:36:00; 1 stop(s) via CLT; 344 minutes. Local airport times.
  • F92396: IAH 2026-12-20 08:52:00 → CLT 2026-12-20 12:24:00; layover at CLT: 85 minutes.
  • F91384: CLT 2026-12-20 13:49:00 → PHL 2026-12-20 15:36:00.

2026-12-19 · one way · Axel-exclusive $138.60

• Frontier Airlines F92396 / F91384: IAH 2026-12-19 08:52:00 → PHL 2026-12-19 15:36:00; 1 stop(s) via CLT; 344 minutes. Local airport times.
  • F92396: IAH 2026-12-19 08:52:00 → CLT 2026-12-19 12:24:00; layover at CLT: 85 minutes.
  • F91384: CLT 2026-12-19 13:49:00 → PHL 2026-12-19 15:36:00.

2026-12-20 · one way · Axel-exclusive $222.60

• American Airlines AA2551 / AA3238: IAH 2026-12-20 06:00:00 → PHL 2026-12-20 12:49:00; 1 stop(s) via DFW; 349 minutes. Local airport times.
  • AA2551: IAH 2026-12-20 06:00:00 → DFW 2026-12-20 07:33:00; layover at DFW: 63 minutes.
  • AA3238: DFW 2026-12-20 08:36:00 → PHL 2026-12-20 12:49:00.

2026-12-18 · one way · Axel-exclusive $222.60

• American Airlines AA5096 / AA5432: IAH 2026-12-18 10:37:00 → PHL 2026-12-18 17:55:00; 1 stop(s) via DCA; 378 minutes. Local airport times.
  • AA5096: IAH 2026-12-18 10:37:00 → DCA 2026-12-18 14:49:00; layover at DCA: 117 minutes.
  • AA5432: DCA 2026-12-18 16:46:00 → PHL 2026-12-18 17:55:00.

2026-12-19 · one way · Axel-exclusive $222.60

• American Airlines AA2551 / AA3238: IAH 2026-12-19 06:00:00 → PHL 2026-12-19 12:49:00; 1 stop(s) via DFW; 349 minutes. Local airport times.
  • AA2551: IAH 2026-12-19 06:00:00 → DFW 2026-12-19 07:33:00; layover at DFW: 63 minutes.
  • AA3238: DFW 2026-12-19 08:36:00 → PHL 2026-12-19 12:49:00.

2026-12-18 · one way · Axel-exclusive $222.60

• American Airlines AA2551 / AA3238: IAH 2026-12-18 06:00:00 → PHL 2026-12-18 12:49:00; 1 stop(s) via DFW; 349 minutes. Local airport times.
  • AA2551: IAH 2026-12-18 06:00:00 → DFW 2026-12-18 07:33:00; layover at DFW: 63 minutes.
  • AA3238: DFW 2026-12-18 08:36:00 → PHL 2026-12-18 12:49:00.

2026-12-19 · one way · Axel-exclusive $222.60

• American Airlines AA5096 / AA5432: IAH 2026-12-19 10:37:00 → PHL 2026-12-19 17:55:00; 1 stop(s) via DCA; 378 minutes. Local airport times.
  • AA5096: IAH 2026-12-19 10:37:00 → DCA 2026-12-19 14:49:00; layover at DCA: 117 minutes.
  • AA5432: DCA 2026-12-19 16:46:00 → PHL 2026-12-19 17:55:00.

2026-12-20 · one way · Axel-exclusive $222.60

• American Airlines AA5096 / AA5432: IAH 2026-12-20 10:37:00 → PHL 2026-12-20 17:55:00; 1 stop(s) via DCA; 378 minutes. Local airport times.
  • AA5096: IAH 2026-12-20 10:37:00 → DCA 2026-12-20 14:49:00; layover at DCA: 117 minutes.
  • AA5432: DCA 2026-12-20 16:46:00 → PHL 2026-12-20 17:55:00.

2026-12-20 · one way · Axel-exclusive $222.60

• American Airlines AA2765 / AA687: IAH 2026-12-20 08:12:00 → PHL 2026-12-20 14:43:00; 1 stop(s) via CLT; 331 minutes. Local airport times.
  • AA2765: IAH 2026-12-20 08:12:00 → CLT 2026-12-20 11:40:00; layover at CLT: 80 minutes.
  • AA687: CLT 2026-12-20 13:00:00 → PHL 2026-12-20 14:43:00.

2026-12-18 · one way · Axel-exclusive $222.60

• American Airlines AA2765 / AA687: IAH 2026-12-18 08:12:00 → PHL 2026-12-18 14:43:00; 1 stop(s) via CLT; 331 minutes. Local airport times.
  • AA2765: IAH 2026-12-18 08:12:00 → CLT 2026-12-18 11:40:00; layover at CLT: 80 minutes.
  • AA687: CLT 2026-12-18 13:00:00 → PHL 2026-12-18 14:43:00.

2026-12-19 · one way · Axel-exclusive $222.60

• American Airlines AA2765 / AA687: IAH 2026-12-19 08:12:00 → PHL 2026-12-19 14:43:00; 1 stop(s) via CLT; 331 minutes. Local airport times.
  • AA2765: IAH 2026-12-19 08:12:00 → CLT 2026-12-19 11:40:00; layover at CLT: 80 minutes.
  • AA687: CLT 2026-12-19 13:00:00 → PHL 2026-12-19 14:43:00.

2026-12-20 · one way · Axel-exclusive $236.60

• Delta Air Lines DL1389 / DL2331: IAH 2026-12-20 05:02:00 → PHL 2026-12-20 11:37:00; 1 stop(s) via DTW; 335 minutes. Local airport times.
  • DL1389: IAH 2026-12-20 05:02:00 → DTW 2026-12-20 08:49:00; layover at DTW: 71 minutes.
  • DL2331: DTW 2026-12-20 10:00:00 → PHL 2026-12-20 11:37:00.

2026-12-18 · one way · Axel-exclusive $236.60

• Delta Air Lines DL1389 / DL2331: IAH 2026-12-18 05:02:00 → PHL 2026-12-18 11:37:00; 1 stop(s) via DTW; 335 minutes. Local airport times.
  • DL1389: IAH 2026-12-18 05:02:00 → DTW 2026-12-18 08:49:00; layover at DTW: 71 minutes.
  • DL2331: DTW 2026-12-18 10:00:00 → PHL 2026-12-18 11:37:00.

Travelers: prices on this page are totals for 1 adult. For a different party, open this trip for 2 adults · 3 adults · 4 adults · 2 adults + 1 child · 2 adults + 2 children; each link opens AI flight search for these dates and those travelers, and the customer link to share comes from those results.

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