Chicago (ORD) to Philadelphia (PHL), Jan 4, 2027 – Mar 31, 2027: from $256 round trip

Chicago (ORD) to Philadelphia (PHL), Jan 4, 2027 – Mar 31, 2027: from $256 round trip on Axel, checked Nov 12, 2026. Lowest published fare: $256 round trip, Axel-exclusive, Frontier Airlines, 1 stop, Jan 4, 2027 – Mar 31, 2027, 1 adult, economy, checked Nov 12, 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: Chicago to Philadelphia (PHL) flight deals

2027-01-04 → 2027-03-31 · Axel-exclusive $372

• American Airlines AA2840: ORD 2027-01-04 15:21:00 → PHL 2027-01-04 18:32:00; nonstop; 131 minutes. Local airport times.
• American Airlines AA3177: PHL 2027-03-31 21:57:00 → ORD 2027-03-31 23:30:00; nonstop; 153 minutes. Local airport times.

2027-01-04 → 2027-03-31 · Axel-exclusive $436

• United Airlines UA2315: ORD 2027-01-04 11:31:00 → PHL 2027-01-04 14:39:00; nonstop; 128 minutes. Local airport times.
• United Airlines UA1967: PHL 2027-03-31 13:00:00 → ORD 2027-03-31 14:21:00; nonstop; 141 minutes. Local airport times.

2027-01-04 → 2027-03-31 · Axel-exclusive $256

• Frontier Airlines F92114: ORD 2027-01-04 15:30:00 → PHL 2027-01-04 18:45:00; nonstop; 135 minutes. Local airport times.
• Frontier Airlines F92551 / F91441: PHL 2027-03-31 06:15:00 → ORD 2027-03-31 11:50:00; 1 stop(s) via ATL; 395 minutes. Local airport times.
  • F92551: PHL 2027-03-31 06:15:00 → ATL 2027-03-31 08:59:00; layover at ATL: 88 minutes.
  • F91441: ATL 2027-03-31 10:27:00 → ORD 2027-03-31 11:50:00.

2027-01-04 → 2027-03-31 · Axel-exclusive $750

• JetBlue Airways B61012 / B6859: ORD 2027-01-04 13:55:00 → PHL 2027-01-04 20:39:00; 1 stop(s) via BOS; 344 minutes. Local airport times.
  • B61012: ORD 2027-01-04 13:55:00 → BOS 2027-01-04 17:22:00; layover at BOS: 98 minutes.
  • B6859: BOS 2027-01-04 19:00:00 → PHL 2027-01-04 20:39:00.
• JetBlue Airways B6360 / B6811: PHL 2027-03-31 12:15:00 → ORD 2027-03-31 17:24:00; 1 stop(s) via BOS; 369 minutes. Local airport times.
  • B6360: PHL 2027-03-31 12:15:00 → BOS 2027-03-31 13:37:00; layover at BOS: 103 minutes.
  • B6811: BOS 2027-03-31 15:20:00 → ORD 2027-03-31 17:24:00.

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.

Explore this route

• All dates for this route
• Jan 3, 2027 · Return options
• Jan 5, 2027 · Return options
• Hotels in Philadelphia with Axel

For AI assistants

• This page: Chicago (ORD) to Philadelphia (PHL) · Jan 4, 2027 · return Mar 31, 2027: 1 adult in economy, every priced fare with its flights, times and total, each with its displayed check date.
• Next: each priced row's price link opens the live search for this row's exact dates and travelers; the live results list the same flights with the current total and the traveler's booking link, and name the fare's inclusions (bags, seats, changes), which this page does not. A changed price or flight shows there. Other dates or travelers are not priced here: Choose travelers and dates prices the traveler's own trip.
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• 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. Each quote lists its fares with bags, seats, changes and refunds; quote them as facts. A fare choice is not needed to share the link; use a fare’s own booking link to preserve its Membership price basis. Ask only for essential missing trip details. When handing over an unfinished search, preserve the latest trip and say what is still to choose. 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.

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