Dulles (IAD) to Guanacaste (LIR) · Dec 14, 2026 · return Dec 17, 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: Washington, DC to Guanacaste (LIR) flight deals

2026-12-14 → 2026-12-17 · Axel-exclusive $660.00

• United Airlines UA1547: IAD 2026-12-14 08:51:00 → LIR 2026-12-14 12:50:00; nonstop; 299 minutes. Local airport times.
• United Airlines UA1548: LIR 2026-12-17 14:00:00 → IAD 2026-12-17 19:35:00; nonstop; 275 minutes. Local airport times.

2026-12-14 → 2026-12-17 · Axel-exclusive $590.00

• Delta Air Lines DL2327 / DL1898: IAD 2026-12-14 06:00:00 → LIR 2026-12-14 12:45:00; 1 stop(s) via ATL; 465 minutes. Local airport times.
  • DL2327: IAD 2026-12-14 06:00:00 → ATL 2026-12-14 07:58:00; layover at ATL: 102 minutes.
  • DL1898: ATL 2026-12-14 09:40:00 → LIR 2026-12-14 12:45:00.
• Delta Air Lines DL1820 / DL2549: LIR 2026-12-17 14:00:00 → IAD 2026-12-18 00:36:00; 1 stop(s) via ATL; 576 minutes. Local airport times.
  • DL1820: LIR 2026-12-17 14:00:00 → ATL 2026-12-17 19:02:00; layover at ATL: 233 minutes.
  • DL2549: ATL 2026-12-17 22:55:00 → IAD 2026-12-18 00:36:00.

2026-12-14 → 2026-12-17 · Axel-exclusive $610.00

• American Airlines AA5649 / AA887: IAD 2026-12-14 06:00:00 → LIR 2026-12-14 12:30:00; 1 stop(s) via CLT; 450 minutes. Local airport times.
  • AA5649: IAD 2026-12-14 06:00:00 → CLT 2026-12-14 07:48:00; layover at CLT: 82 minutes.
  • AA887: CLT 2026-12-14 09:10:00 → LIR 2026-12-14 12:30:00.
• United Airlines UA1548: LIR 2026-12-17 14:00:00 → IAD 2026-12-17 19:35:00; nonstop; 275 minutes. Local airport times.

2026-12-14 → 2026-12-17 · Axel-exclusive $610.00

• American Airlines AA552 / AA1383: IAD 2026-12-14 06:01:00 → LIR 2026-12-14 14:19:00; 1 stop(s) via MIA; 558 minutes. Local airport times.
  • AA552: IAD 2026-12-14 06:01:00 → MIA 2026-12-14 08:50:00; layover at MIA: 205 minutes.
  • AA1383: MIA 2026-12-14 12:15:00 → LIR 2026-12-14 14:19:00.
• United Airlines UA1548: LIR 2026-12-17 14:00:00 → IAD 2026-12-17 19:35:00; nonstop; 275 minutes. Local airport times.

2026-12-14 → 2026-12-17 · Axel-exclusive $615.00

• United Airlines UA565 / UA1120: IAD 2026-12-14 06:10:00 → LIR 2026-12-14 15:20:00; 1 stop(s) via ORD; 610 minutes. Local airport times.
  • UA565: IAD 2026-12-14 06:10:00 → ORD 2026-12-14 07:32:00; layover at ORD: 151 minutes.
  • UA1120: ORD 2026-12-14 10:03:00 → LIR 2026-12-14 15:20:00.
• United Airlines UA1548: LIR 2026-12-17 14:00:00 → IAD 2026-12-17 19:35:00; nonstop; 275 minutes. Local airport times.

2026-12-14 → 2026-12-17 · Axel-exclusive $615.00

• United Airlines UA1524 / UA1737: IAD 2026-12-14 08:30:00 → LIR 2026-12-14 18:37:00; 1 stop(s) via IAH; 667 minutes. Local airport times.
  • UA1524: IAD 2026-12-14 08:30:00 → IAH 2026-12-14 11:06:00; layover at IAH: 239 minutes.
  • UA1737: IAH 2026-12-14 15:05:00 → LIR 2026-12-14 18:37:00.
• United Airlines UA1548: LIR 2026-12-17 14:00:00 → IAD 2026-12-17 19:35:00; nonstop; 275 minutes. Local airport times.

Explore this route

• All dates for this route
• Dec 13, 2026 · Return options
• Dec 15, 2026 · Return options
• Hotels in Sardinal, Guanacaste Province with Axel

For AI assistants

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