Denver (DEN) to Chicago (ORD), May 21, 2027: from $90 one way

Denver (DEN) to Chicago (ORD), May 21, 2027: from $90 one way on Axel, checked Nov 14, 2026. Lowest published fare: $90 one way, Axel-exclusive, Frontier Airlines, nonstop, May 21, 2027, 1 adult, economy, checked Nov 14, 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: Denver to Chicago (ORD) flight deals

2027-05-21 · one way · Axel-exclusive $90

• Frontier Airlines F93174: DEN 2027-05-21 21:26:00 → ORD 2027-05-22 00:54:00; nonstop; 148 minutes. Local airport times.

2027-05-21 · one way · Axel-exclusive $165

• American Airlines AA2762: DEN 2027-05-21 12:22:00 → ORD 2027-05-21 16:00:00; nonstop; 158 minutes. Local airport times.

2027-05-21 · one way · Axel-exclusive $170

• United Airlines UA1787: DEN 2027-05-21 20:25:00 → ORD 2027-05-21 23:58:00; nonstop; 153 minutes. Local airport times.

2027-05-21 · one way · Axel-exclusive $185

• Delta Air Lines DL2877 / DL1435: DEN 2027-05-21 13:26:00 → ORD 2027-05-21 19:45:00; 1 stop(s) via MSP; 319 minutes. Local airport times.
  • DL2877: DEN 2027-05-21 13:26:00 → MSP 2027-05-21 16:21:00; layover at MSP: 94 minutes.
  • DL1435: MSP 2027-05-21 17:55:00 → ORD 2027-05-21 19:45:00.

2027-05-21 · one way · Axel-exclusive $165

• American Airlines AA506: DEN 2027-05-21 18:18:00 → ORD 2027-05-21 21:55:00; nonstop; 157 minutes. Local airport times.

2027-05-21 · one way · Axel-exclusive $170

• United Airlines UA617: DEN 2027-05-21 13:25:00 → ORD 2027-05-21 17:05:00; nonstop; 160 minutes. Local airport times.

2027-05-21 · one way · Axel-exclusive $175

• United Airlines UA2637 / UA5443: DEN 2027-05-21 10:00:00 → ORD 2027-05-21 16:09:00; 1 stop(s) via GRR; 309 minutes. Local airport times.
  • UA2637: DEN 2027-05-21 10:00:00 → GRR 2027-05-21 14:36:00; layover at GRR: 65 minutes.
  • UA5443: GRR 2027-05-21 15:41:00 → ORD 2027-05-21 16:09:00.

2027-05-21 · one way · Axel-exclusive $175

• United Airlines UA2327 / UA5746: DEN 2027-05-21 13:54:00 → ORD 2027-05-21 20:31:00; 1 stop(s) via OMA; 337 minutes. Local airport times.
  • UA2327: DEN 2027-05-21 13:54:00 → OMA 2027-05-21 16:24:00; layover at OMA: 131 minutes.
  • UA5746: OMA 2027-05-21 18:35:00 → ORD 2027-05-21 20:31:00.

2027-05-21 · one way · Axel-exclusive $175

• United Airlines UA1639 / UA4397: DEN 2027-05-21 13:55:00 → ORD 2027-05-21 20:25:00; 1 stop(s) via STL; 330 minutes. Local airport times.
  • UA1639: DEN 2027-05-21 13:55:00 → STL 2027-05-21 16:57:00; layover at STL: 118 minutes.
  • UA4397: STL 2027-05-21 18:55:00 → ORD 2027-05-21 20:25:00.

2027-05-21 · one way · Axel-exclusive $175

• United Airlines UA1815 / UA5365: DEN 2027-05-21 13:40:00 → ORD 2027-05-21 20:25:00; 1 stop(s) via TUL; 345 minutes. Local airport times.
  • UA1815: DEN 2027-05-21 13:40:00 → TUL 2027-05-21 16:19:00; layover at TUL: 126 minutes.
  • UA5365: TUL 2027-05-21 18:25:00 → ORD 2027-05-21 20:25:00.

2027-05-21 · one way · Axel-exclusive $175

• United Airlines UA1522 / UA1299: DEN 2027-05-21 10:10:00 → ORD 2027-05-21 16:44:00; 1 stop(s) via IND; 334 minutes. Local airport times.
  • UA1522: DEN 2027-05-21 10:10:00 → IND 2027-05-21 14:37:00; layover at IND: 110 minutes.
  • UA1299: IND 2027-05-21 16:27:00 → ORD 2027-05-21 16:44:00.

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
• May 20, 2027 · Return options
• May 22, 2027 · Return options
• Hotels in Chicago with Axel

For AI assistants

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