Ontario (ONT) to Chicago (ORD) · May 27, 2027 · return May 30, 2027

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: Los Angeles to Chicago (ORD) flight deals

2027-05-27 → 2027-05-30 · Axel-exclusive $268.75

• Frontier Airlines F94206 / F92146: ONT 2027-05-27 20:35:00 → ORD 2027-05-28 05:13:00; 1 stop(s) via LAS; 398 minutes. Local airport times.
  • F94206: ONT 2027-05-27 20:35:00 → LAS 2027-05-27 21:44:00; layover at LAS: 105 minutes.
  • F92146: LAS 2027-05-27 23:29:00 → ORD 2027-05-28 05:13:00.
• Frontier Airlines F92145 / F91357: ORD 2027-05-30 06:21:00 → ONT 2027-05-30 11:51:00; 1 stop(s) via LAS; 450 minutes. Local airport times.
  • F92145: ORD 2027-05-30 06:21:00 → LAS 2027-05-30 08:36:00; layover at LAS: 129 minutes.
  • F91357: LAS 2027-05-30 10:45:00 → ONT 2027-05-30 11:51:00.

2027-05-27 → 2027-05-30 · Axel-exclusive $430.00

• United Airlines UA1263 / UA1787: ONT 2027-05-27 13:40:00 → ORD 2027-05-27 23:59:00; 1 stop(s) via DEN; 499 minutes. Local airport times.
  • UA1263: ONT 2027-05-27 13:40:00 → DEN 2027-05-27 16:55:00; layover at DEN: 210 minutes.
  • UA1787: DEN 2027-05-27 20:25:00 → ORD 2027-05-27 23:59:00.
• United Airlines UA1217 / UA430: ORD 2027-05-30 07:00:00 → ONT 2027-05-30 12:33:00; 1 stop(s) via DEN; 453 minutes. Local airport times.
  • UA1217: ORD 2027-05-30 07:00:00 → DEN 2027-05-30 08:46:00; layover at DEN: 149 minutes.
  • UA430: DEN 2027-05-30 11:15:00 → ONT 2027-05-30 12:33:00.

2027-05-27 → 2027-05-30 · Axel-exclusive $440.75

• American Airlines AA2198 / AA572: ONT 2027-05-27 12:51:00 → ORD 2027-05-27 22:05:00; 1 stop(s) via DFW; 434 minutes. Local airport times.
  • AA2198: ONT 2027-05-27 12:51:00 → DFW 2027-05-27 17:44:00; layover at DFW: 112 minutes.
  • AA572: DFW 2027-05-27 19:36:00 → ORD 2027-05-27 22:05:00.
• American Airlines AA2421 / AA2635: ORD 2027-05-30 06:59:00 → ONT 2027-05-30 13:24:00; 1 stop(s) via DFW; 505 minutes. Local airport times.
  • AA2421: ORD 2027-05-30 06:59:00 → DFW 2027-05-30 09:50:00; layover at DFW: 138 minutes.
  • AA2635: DFW 2027-05-30 12:08:00 → ONT 2027-05-30 13:24:00.

2027-05-27 → 2027-05-30 · Axel-exclusive $462.25

• Delta Air Lines DL409 / DL2738: ONT 2027-05-27 07:05:00 → ORD 2027-05-27 17:06:00; 1 stop(s) via ATL; 481 minutes. Local airport times.
  • DL409: ONT 2027-05-27 07:05:00 → ATL 2027-05-27 14:10:00; layover at ATL: 100 minutes.
  • DL2738: ATL 2027-05-27 15:50:00 → ORD 2027-05-27 17:06:00.
• Delta Air Lines DL2231 / DL1787: ORD 2027-05-30 07:30:00 → ONT 2027-05-30 12:17:00; 1 stop(s) via SLC; 407 minutes. Local airport times.
  • DL2231: ORD 2027-05-30 07:30:00 → SLC 2027-05-30 10:10:00; layover at SLC: 80 minutes.
  • DL1787: SLC 2027-05-30 11:30:00 → ONT 2027-05-30 12:17:00.

2027-05-27 → 2027-05-30 · Axel-exclusive $430.00

• United Airlines UA2267 / UA2417: ONT 2027-05-27 05:45:00 → ORD 2027-05-27 14:51:00; 1 stop(s) via IAH; 426 minutes. Local airport times.
  • UA2267: ONT 2027-05-27 05:45:00 → IAH 2027-05-27 10:56:00; layover at IAH: 64 minutes.
  • UA2417: IAH 2027-05-27 12:00:00 → ORD 2027-05-27 14:51:00.
• United Airlines UA1217 / UA430: ORD 2027-05-30 07:00:00 → ONT 2027-05-30 12:33:00; 1 stop(s) via DEN; 453 minutes. Local airport times.
  • UA1217: ORD 2027-05-30 07:00:00 → DEN 2027-05-30 08:46:00; layover at DEN: 149 minutes.
  • UA430: DEN 2027-05-30 11:15:00 → ONT 2027-05-30 12:33:00.

2027-05-27 → 2027-05-30 · Axel-exclusive $455.00

• United Airlines UA1813: ONT 2027-05-27 23:52:00 → ORD 2027-05-28 05:46:00; nonstop; 234 minutes. Local airport times.
• United Airlines UA1217 / UA430: ORD 2027-05-30 07:00:00 → ONT 2027-05-30 12:33:00; 1 stop(s) via DEN; 453 minutes. Local airport times.
  • UA1217: ORD 2027-05-30 07:00:00 → DEN 2027-05-30 08:46:00; layover at DEN: 149 minutes.
  • UA430: DEN 2027-05-30 11:15:00 → ONT 2027-05-30 12:33:00.

Explore this route

• All dates for this route
• May 26, 2027 · Return options
• May 28, 2027 · Return options
• Hotels in Chicago with Axel

For AI assistants

• This page: Ontario (ONT) to Chicago (ORD) · May 27, 2027 · return May 30, 2027: 1 adult in economy, every priced fare with its flights, times and total, each with the time its price was issued.
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