Dulles (IAD) to Denver (DEN) · Dec 18, 2026 · return Jan 1, 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: Washington, DC to Denver (DEN) flight deals

2026-12-18 → 2027-01-01 · Axel-exclusive $438.90

• United Airlines UA495: IAD 2026-12-18 22:12:00 → DEN 2026-12-19 00:15:00; nonstop; 243 minutes. Local airport times.
• United Airlines UA1924: DEN 2027-01-01 23:59:00 → IAD 2027-01-02 05:19:00; nonstop; 200 minutes. Local airport times.

2026-12-18 → 2027-01-01 · Axel-exclusive $426.40

• Delta Air Lines DL3783 / DL1278: IAD 2026-12-18 19:06:00 → DEN 2026-12-18 23:49:00; 1 stop(s) via MSP; 403 minutes. Local airport times.
  • DL3783: IAD 2026-12-18 19:06:00 → MSP 2026-12-18 21:04:00; layover at MSP: 85 minutes.
  • DL1278: MSP 2026-12-18 22:29:00 → DEN 2026-12-18 23:49:00.
• United Airlines UA1924: DEN 2027-01-01 23:59:00 → IAD 2027-01-02 05:19:00; nonstop; 200 minutes. Local airport times.

2026-12-18 → 2027-01-01 · Axel-exclusive $438.90

• United Airlines UA2357: IAD 2026-12-18 06:45:00 → DEN 2026-12-18 08:54:00; nonstop; 249 minutes. Local airport times.
• United Airlines UA1924: DEN 2027-01-01 23:59:00 → IAD 2027-01-02 05:19:00; nonstop; 200 minutes. Local airport times.

2026-12-18 → 2027-01-01 · Axel-exclusive $421.40

• United Airlines UA3504 / UA624: IAD 2026-12-18 12:35:00 → DEN 2026-12-18 16:38:00; 1 stop(s) via DTW; 363 minutes. Local airport times.
  • UA3504: IAD 2026-12-18 12:35:00 → DTW 2026-12-18 14:19:00; layover at DTW: 64 minutes.
  • UA624: DTW 2026-12-18 15:23:00 → DEN 2026-12-18 16:38:00.
• United Airlines UA1924: DEN 2027-01-01 23:59:00 → IAD 2027-01-02 05:19:00; nonstop; 200 minutes. Local airport times.

2026-12-18 → 2027-01-01 · Axel-exclusive $421.40

• United Airlines UA609 / UA1302: IAD 2026-12-18 08:15:00 → DEN 2026-12-18 12:15:00; 1 stop(s) via CLE; 360 minutes. Local airport times.
  • UA609: IAD 2026-12-18 08:15:00 → CLE 2026-12-18 09:38:00; layover at CLE: 67 minutes.
  • UA1302: CLE 2026-12-18 10:45:00 → DEN 2026-12-18 12:15:00.
• United Airlines UA1924: DEN 2027-01-01 23:59:00 → IAD 2027-01-02 05:19:00; nonstop; 200 minutes. Local airport times.

2026-12-18 → 2027-01-01 · Axel-exclusive $421.40

• United Airlines UA565 / UA2495: IAD 2026-12-18 06:10:00 → DEN 2026-12-18 10:26:00; 1 stop(s) via ORD; 376 minutes. Local airport times.
  • UA565: IAD 2026-12-18 06:10:00 → ORD 2026-12-18 07:32:00; layover at ORD: 68 minutes.
  • UA2495: ORD 2026-12-18 08:40:00 → DEN 2026-12-18 10:26:00.
• United Airlines UA1924: DEN 2027-01-01 23:59:00 → IAD 2027-01-02 05:19:00; nonstop; 200 minutes. Local airport times.

2026-12-18 → 2027-01-01 · Axel-exclusive $421.40

• United Airlines UA3543 / UA377: IAD 2026-12-18 12:40:00 → DEN 2026-12-18 16:50:00; 1 stop(s) via IND; 370 minutes. Local airport times.
  • UA3543: IAD 2026-12-18 12:40:00 → IND 2026-12-18 14:33:00; layover at IND: 76 minutes.
  • UA377: IND 2026-12-18 15:49:00 → DEN 2026-12-18 16:50:00.
• United Airlines UA1924: DEN 2027-01-01 23:59:00 → IAD 2027-01-02 05:19:00; nonstop; 200 minutes. Local airport times.

2026-12-18 → 2027-01-01 · Axel-exclusive $421.40

• United Airlines UA4559 / UA1389: IAD 2026-12-18 12:45:00 → DEN 2026-12-18 17:03:00; 1 stop(s) via CMH; 378 minutes. Local airport times.
  • UA4559: IAD 2026-12-18 12:45:00 → CMH 2026-12-18 14:20:00; layover at CMH: 76 minutes.
  • UA1389: CMH 2026-12-18 15:36:00 → DEN 2026-12-18 17:03:00.
• United Airlines UA1924: DEN 2027-01-01 23:59:00 → IAD 2027-01-02 05:19:00; nonstop; 200 minutes. Local airport times.

Explore this route

• All dates for this route
• Dec 17, 2026 · Return options
• Dec 19, 2026 · Return options
• Hotels in Denver with Axel

For AI assistants

• This page: Dulles (IAD) to Denver (DEN) · Dec 18, 2026 · return Jan 1, 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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