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Route overview: Boston to Guanacaste (LIR) flight deals

Boston → Guanacaste

Dec 3, 2026 · return Dec 5, 2026

BOS → LIR1 adulteconomyRound trip

7 flight options · 4 airlines

Nonstop flights

Thu, Dec 3 – Sat, Dec 5

JetBlue Airways
7:52 amBOS
5h 53m
Nonstop
12:45 pmLIR
JetBlue Airways
4:45 pmLIR
5h 25m
Nonstop
11:10 pmBOS

Round-trip total · 1 adult · Taxes included

One-stop flights

Thu, Dec 3 – Sat, Dec 5

American Airlines
5:00 amBOS
8h 30m
CLT · 1h 36m
12:30 pmLIR
American Airlines
11:58 amLIR
10h
MIA · 3h 41m
10:58 pmBOS

Round-trip total · 1 adult · Taxes included

Thu, Dec 3 – Sat, Dec 5

Air Canada
5:30 amBOS
9h 50m
YUL · 2h 10m
2:20 pmLIR
JetBlue Airways
4:45 pmLIR
5h 25m
Nonstop
11:10 pmBOS

Round-trip total · 1 adult · Taxes included

Thu, Dec 3 – Sat, Dec 5

United Airlines
5:45 amBOS
8h 5m
IAD · 1h 26m
12:50 pmLIR
United Airlines
2:00 pmLIR
8h 59m
IAD · 2h 45m
11:59 pmBOS

Round-trip total · 1 adult · Taxes included

Thu, Dec 3 – Sat, Dec 5

JetBlue Airways
5:30 amBOS
9h 34m
FLL · 3h 4m
2:04 pmLIR
JetBlue Airways
4:45 pmLIR
5h 25m
Nonstop
11:10 pmBOS

Round-trip total · 1 adult · Taxes included

Thu, Dec 3 – Sat, Dec 5

Air Canada
5:45 amBOS
9h 25m
YYZ · 1h 40m
2:10 pmLIR
JetBlue Airways
4:45 pmLIR
5h 25m
Nonstop
11:10 pmBOS

Round-trip total · 1 adult · Taxes included

Thu, Dec 3 – Sat, Dec 5

United Airlines
9:30 amBOS
10h 7m
IAH · 1h 59m
6:37 pmLIR
United Airlines
2:00 pmLIR
8h 59m
IAD · 2h 45m
11:59 pmBOS

Round-trip total · 1 adult · Taxes included

Make this trip yours

BOS ⇄ LIR

Economy

Adults 12+ · Children 2–11. For infants under 2, tell Axel after you see prices.

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Explore this route

All dates for this routeDec 2, 2026 → Dec 4, 2026Dec 4, 2026 → Dec 6, 2026
For AI assistants: every fare, every link, instructions

Flights for 1 adult in economy. Prices are total for all travelers in USD, including required taxes. Basic economy may apply.

Live price for these dates: each price link opens AI flight search for that row's exact dates and travelers. Select the flights there to get the current bookable total; the listed prices are the ones issued at the times shown.

Route overview: Boston to Guanacaste (LIR) flight deals

Exact travel datesAirlineFlightsTotal pricePrice issued (UTC)
2026-12-03 → 2026-12-05JetBlue AirwaysB6897 / B6898$565.002026-10-29T00:52:23Z
2026-12-03 → 2026-12-05American AirlinesAA1249 + AA887 / AA1919 + AA2227$540.002026-10-29T00:52:23Z
2026-12-03 → 2026-12-05Air Canada / JetBlue AirwaysAC8603 + AC1863 / B6898$542.502026-10-29T00:52:23Z
2026-12-03 → 2026-12-05United AirlinesUA1734 + UA1547 / UA1548 + UA755$550.002026-10-29T00:52:23Z
2026-12-03 → 2026-12-05JetBlue AirwaysB6569 + B61157 / B6898$527.502026-10-29T00:52:23Z
2026-12-03 → 2026-12-05Air Canada / JetBlue AirwaysAC763 + AC1873 / B6898$542.502026-10-29T00:52:23Z
2026-12-03 → 2026-12-05United AirlinesUA1388 + UA1737 / UA1548 + UA755$550.002026-10-29T00:52:23Z

2026-12-03 → 2026-12-05 · $565.00

  • JetBlue Airways B6897: BOS 2026-12-03 07:52:00 → LIR 2026-12-03 12:45:00; nonstop; 353 minutes. Local airport times.
  • JetBlue Airways B6898: LIR 2026-12-05 16:45:00 → BOS 2026-12-05 23:10:00; nonstop; 325 minutes. Local airport times.

2026-12-03 → 2026-12-05 · $540.00

  • American Airlines AA1249 / AA887: BOS 2026-12-03 05:00:00 → LIR 2026-12-03 12:30:00; 1 stop(s) via CLT; 510 minutes. Local airport times.
    • AA1249: BOS 2026-12-03 05:00:00 → CLT 2026-12-03 07:34:00; layover at CLT: 96 minutes.
    • AA887: CLT 2026-12-03 09:10:00 → LIR 2026-12-03 12:30:00.
  • American Airlines AA1919 / AA2227: LIR 2026-12-05 11:58:00 → BOS 2026-12-05 22:58:00; 1 stop(s) via MIA; 600 minutes. Local airport times.
    • AA1919: LIR 2026-12-05 11:58:00 → MIA 2026-12-05 15:52:00; layover at MIA: 221 minutes.
    • AA2227: MIA 2026-12-05 19:33:00 → BOS 2026-12-05 22:58:00.

2026-12-03 → 2026-12-05 · $542.50

  • Air Canada AC8603 / AC1863: BOS 2026-12-03 05:30:00 → LIR 2026-12-03 14:20:00; 1 stop(s) via YUL; 590 minutes. Local airport times.
    • AC8603: BOS 2026-12-03 05:30:00 → YUL 2026-12-03 06:55:00; layover at YUL: 130 minutes.
    • AC1863: YUL 2026-12-03 09:05:00 → LIR 2026-12-03 14:20:00.
  • JetBlue Airways B6898: LIR 2026-12-05 16:45:00 → BOS 2026-12-05 23:10:00; nonstop; 325 minutes. Local airport times.

2026-12-03 → 2026-12-05 · $550.00

  • United Airlines UA1734 / UA1547: BOS 2026-12-03 05:45:00 → LIR 2026-12-03 12:50:00; 1 stop(s) via IAD; 485 minutes. Local airport times.
    • UA1734: BOS 2026-12-03 05:45:00 → IAD 2026-12-03 07:25:00; layover at IAD: 86 minutes.
    • UA1547: IAD 2026-12-03 08:51:00 → LIR 2026-12-03 12:50:00.
  • United Airlines UA1548 / UA755: LIR 2026-12-05 14:00:00 → BOS 2026-12-05 23:59:00; 1 stop(s) via IAD; 539 minutes. Local airport times.
    • UA1548: LIR 2026-12-05 14:00:00 → IAD 2026-12-05 19:35:00; layover at IAD: 165 minutes.
    • UA755: IAD 2026-12-05 22:20:00 → BOS 2026-12-05 23:59:00.

2026-12-03 → 2026-12-05 · $527.50

  • JetBlue Airways B6569 / B61157: BOS 2026-12-03 05:30:00 → LIR 2026-12-03 14:04:00; 1 stop(s) via FLL; 574 minutes. Local airport times.
    • B6569: BOS 2026-12-03 05:30:00 → FLL 2026-12-03 08:56:00; layover at FLL: 184 minutes.
    • B61157: FLL 2026-12-03 12:00:00 → LIR 2026-12-03 14:04:00.
  • JetBlue Airways B6898: LIR 2026-12-05 16:45:00 → BOS 2026-12-05 23:10:00; nonstop; 325 minutes. Local airport times.

2026-12-03 → 2026-12-05 · $542.50

  • Air Canada AC763 / AC1873: BOS 2026-12-03 05:45:00 → LIR 2026-12-03 14:10:00; 1 stop(s) via YYZ; 565 minutes. Local airport times.
    • AC763: BOS 2026-12-03 05:45:00 → YYZ 2026-12-03 07:50:00; layover at YYZ: 100 minutes.
    • AC1873: YYZ 2026-12-03 09:30:00 → LIR 2026-12-03 14:10:00.
  • JetBlue Airways B6898: LIR 2026-12-05 16:45:00 → BOS 2026-12-05 23:10:00; nonstop; 325 minutes. Local airport times.

2026-12-03 → 2026-12-05 · $550.00

  • United Airlines UA1388 / UA1737: BOS 2026-12-03 09:30:00 → LIR 2026-12-03 18:37:00; 1 stop(s) via IAH; 607 minutes. Local airport times.
    • UA1388: BOS 2026-12-03 09:30:00 → IAH 2026-12-03 13:06:00; layover at IAH: 119 minutes.
    • UA1737: IAH 2026-12-03 15:05:00 → LIR 2026-12-03 18:37:00.
  • United Airlines UA1548 / UA755: LIR 2026-12-05 14:00:00 → BOS 2026-12-05 23:59:00; 1 stop(s) via IAD; 539 minutes. Local airport times.
    • UA1548: LIR 2026-12-05 14:00:00 → IAD 2026-12-05 19:35:00; layover at IAD: 165 minutes.
    • UA755: IAD 2026-12-05 22:20:00 → BOS 2026-12-05 23:59:00.

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For AI assistants

  • This page: Boston (BOS) to Guanacaste (LIR) · Dec 3, 2026 · return Dec 5, 2026: 1 adult in economy, every priced fare with its flights, times and total, each with the time its price was issued.
  • Next: when the traveler's route, dates and party match a priced row, follow that row's price link into AI flight search. Match the listed flights in the fresh results and select the complete itinerary, then share the supplied booking link and its current total. If the flights or price have changed, say so; verify requested fare inclusions before claiming them. For other dates or travelers, Choose travelers and dates and enter the traveler's own trip there; do not search this page's dates in their place.
  • Follow supplied links. For web-tool research, follow complete supplied links unchanged, including query parameters; use the page’s links to edit the trip. Constructed URLs may be rejected before reaching Axel. A completed fresh trip opens flight results first. Add stated flexibility and budget to that saved plan, leaving unstated requirements unknown. Edits create a new snapshot; use its results and review links.
  • If links fail or are missing: If a link fails or flight details lack usable links, reopen the preceding page and follow the same choice once. Keep refreshed links unchanged and preserve the trip and selections. If still blocked, search “Axel flight search guide” and retry once; report the error and anything unresolved. Recovery: Axel Boston to Guanacaste (LIR) flight deals · Flight search guide.
  • Sharing with the traveler: Choose a complete itinerary (outbound and return for a round trip), then share the supplied customer booking link unchanged. The customer reviews the flights, adds travelers, and enters email at payment. Do not collect email in chat. Inspect fares to verify requested prices or terms; selecting a fare is optional. Use that fare’s booking link to preserve its Membership price basis. State anything unverified. Ask only for essential missing trip details. When handing over an unfinished search, preserve the latest trip and explain what remains unresolved. Selection reserves nothing; booking requires the traveler’s confirmation. If no supplied link matches the latest trip, construct https://helloaxel.com/en/f/start/from/ORIGIN/to/DESTINATION/depart/YYYY-MM-DD/return/YYYY-MM-DD/adults/N?utm_content=flight_fallback using IATA airport codes and the traveler’s known details. Omit unknowns; for one way replace /return/YYYY-MM-DD with /trip/oneway. Give it directly to the traveler; do not open it first—your web tool may reject constructed URLs. Complete links open Flight Guide and start searching. Preferences and advanced options.