Ontario (ONT) to Guanacaste (LIR), Apr 29, 2027 – May 2, 2027: from $556 round trip

Ontario (ONT) to Guanacaste (LIR), Apr 29, 2027 – May 2, 2027: from $556 round trip on Axel, checked Nov 14, 2026. Lowest published fare: $556 round trip, Axel-exclusive, American Airlines / United Airlines, 1 stop, Apr 29, 2027 – May 2, 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: Los Angeles to Guanacaste (LIR) flight deals

2027-04-29 → 2027-05-02 · Axel-exclusive $556

• American Airlines AA1920 / AA887: ONT 2027-04-29 22:30:00 → LIR 2027-04-30 11:30:00; 1 stop(s) via CLT; 720 minutes. Local airport times.
  • AA1920: ONT 2027-04-29 22:30:00 → CLT 2027-04-30 06:02:00; layover at CLT: 188 minutes.
  • AA887: CLT 2027-04-30 09:10:00 → LIR 2027-04-30 11:30:00.
• United Airlines UA1516 / UA1563: LIR 2027-05-02 14:20:00 → ONT 2027-05-02 22:40:00; 1 stop(s) via IAH; 560 minutes. Local airport times.
  • UA1516: LIR 2027-05-02 14:20:00 → IAH 2027-05-02 19:04:00; layover at IAH: 121 minutes.
  • UA1563: IAH 2027-05-02 21:05:00 → ONT 2027-05-02 22:40:00.

2027-04-29 → 2027-05-02 · Axel-exclusive $566

• United Airlines UA2446 / UA1917: ONT 2027-04-29 05:00:00 → LIR 2027-04-29 15:10:00; 1 stop(s) via DEN; 550 minutes. Local airport times.
  • UA2446: ONT 2027-04-29 05:00:00 → DEN 2027-04-29 08:17:00; layover at DEN: 103 minutes.
  • UA1917: DEN 2027-04-29 10:00:00 → LIR 2027-04-29 15:10:00.
• United Airlines UA1516 / UA1563: LIR 2027-05-02 14:20:00 → ONT 2027-05-02 22:40:00; 1 stop(s) via IAH; 560 minutes. Local airport times.
  • UA1516: LIR 2027-05-02 14:20:00 → IAH 2027-05-02 19:04:00; layover at IAH: 121 minutes.
  • UA1563: IAH 2027-05-02 21:05:00 → ONT 2027-05-02 22:40:00.

2027-04-29 → 2027-05-02 · Axel-exclusive $566

• United Airlines UA1813 / UA1120: ONT 2027-04-29 23:52:00 → LIR 2027-04-30 11:56:00; 1 stop(s) via ORD; 664 minutes. Local airport times.
  • UA1813: ONT 2027-04-29 23:52:00 → ORD 2027-04-30 05:46:00; layover at ORD: 120 minutes.
  • UA1120: ORD 2027-04-30 07:46:00 → LIR 2027-04-30 11:56:00.
• United Airlines UA1516 / UA1563: LIR 2027-05-02 14:20:00 → ONT 2027-05-02 22:40:00; 1 stop(s) via IAH; 560 minutes. Local airport times.
  • UA1516: LIR 2027-05-02 14:20:00 → IAH 2027-05-02 19:04:00; layover at IAH: 121 minutes.
  • UA1563: IAH 2027-05-02 21:05:00 → ONT 2027-05-02 22:40:00.

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
• Apr 28, 2027 · Return options
• Apr 30, 2027 · Return options
• Hotels in Sardinal, Guanacaste Province with Axel

For AI assistants

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