Boston (BOS) to Guanacaste (LIR) · Dec 15, 2026 · one way

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: Boston to Guanacaste (LIR) flight deals

2026-12-15 · one way · Axel-exclusive $295.00

• JetBlue Airways B6897: BOS 2026-12-15 07:52:00 → LIR 2026-12-15 12:45:00; nonstop; 353 minutes. Local airport times.

2026-12-15 · one way · Axel-exclusive $270.00

• Air Canada AC763 / AC1873: BOS 2026-12-15 05:45:00 → LIR 2026-12-15 14:10:00; 1 stop(s) via YYZ; 565 minutes. Local airport times.
  • AC763: BOS 2026-12-15 05:45:00 → YYZ 2026-12-15 07:50:00; layover at YYZ: 100 minutes.
  • AC1873: YYZ 2026-12-15 09:30:00 → LIR 2026-12-15 14:10:00.

2026-12-15 · one way · Axel-exclusive $280.00

• American Airlines AA1249 / AA887: BOS 2026-12-15 05:00:00 → LIR 2026-12-15 12:30:00; 1 stop(s) via CLT; 510 minutes. Local airport times.
  • AA1249: BOS 2026-12-15 05:00:00 → CLT 2026-12-15 07:34:00; layover at CLT: 96 minutes.
  • AA887: CLT 2026-12-15 09:10:00 → LIR 2026-12-15 12:30:00.

2026-12-15 · one way · Axel-exclusive $285.00

• United Airlines UA1388 / UA1737: BOS 2026-12-15 09:30:00 → LIR 2026-12-15 18:37:00; 1 stop(s) via IAH; 607 minutes. Local airport times.
  • UA1388: BOS 2026-12-15 09:30:00 → IAH 2026-12-15 13:06:00; layover at IAH: 119 minutes.
  • UA1737: IAH 2026-12-15 15:05:00 → LIR 2026-12-15 18:37:00.

2026-12-15 · one way · Axel-exclusive $255.00

• JetBlue Airways B6569 / B61157: BOS 2026-12-15 05:30:00 → LIR 2026-12-15 14:04:00; 1 stop(s) via FLL; 574 minutes. Local airport times.
  • B6569: BOS 2026-12-15 05:30:00 → FLL 2026-12-15 08:56:00; layover at FLL: 184 minutes.
  • B61157: FLL 2026-12-15 12:00:00 → LIR 2026-12-15 14:04:00.

2026-12-15 · one way · Axel-exclusive $270.00

• Air Canada AC8603 / AC1863: BOS 2026-12-15 05:30:00 → LIR 2026-12-15 14:20:00; 1 stop(s) via YUL; 590 minutes. Local airport times.
  • AC8603: BOS 2026-12-15 05:30:00 → YUL 2026-12-15 06:55:00; layover at YUL: 130 minutes.
  • AC1863: YUL 2026-12-15 09:05:00 → LIR 2026-12-15 14:20:00.

2026-12-15 · one way · Axel-exclusive $285.00

• United Airlines UA1734 / UA1547: BOS 2026-12-15 05:45:00 → LIR 2026-12-15 12:50:00; 1 stop(s) via IAD; 485 minutes. Local airport times.
  • UA1734: BOS 2026-12-15 05:45:00 → IAD 2026-12-15 07:25:00; layover at IAD: 86 minutes.
  • UA1547: IAD 2026-12-15 08:51:00 → LIR 2026-12-15 12:50:00.

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
• Dec 14, 2026 · Return options
• Dec 16, 2026 · Return options
• Hotels in Sardinal, Guanacaste Province with Axel

For AI assistants

• This page: Boston (BOS) to Guanacaste (LIR) · Dec 15, 2026 · one way: 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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