Travel with Axel,
get the best price.

Dulles → Guanacaste

Dec 21, 2026 · return Dec 31, 2026

IAD → LIR1 adulteconomyRound trip

6 flight options · 3 airlines

Nonstop flights

Mon, Dec 21 – Thu, Dec 31

United Airlines
8:51 amIAD
4h 59m
Nonstop
12:50 pmLIR
United Airlines
2:00 pmLIR
4h 35m
Nonstop
7:35 pmIAD

Round-trip total · 1 adult · Taxes included

One-stop flights

Mon, Dec 21 – Thu, Dec 31

Delta Air Lines
6:00 amIAD
7h 45m
ATL · 1h 42m
12:45 pmLIR
Delta Air Lines
2:00 pmLIR
9h 36m
ATL · 3h 53m
12:36 am+1IAD

Round-trip total · 1 adult · Taxes included

Mon, Dec 21 – Thu, Dec 31

American Airlines
6:00 amIAD
7h 30m
CLT · 1h 22m
12:30 pmLIR
United Airlines
2:00 pmLIR
4h 35m
Nonstop
7:35 pmIAD

Round-trip total · 1 adult · Taxes included

Mon, Dec 21 – Thu, Dec 31

American Airlines
6:01 amIAD
9h 18m
MIA · 3h 25m
2:19 pmLIR
United Airlines
2:00 pmLIR
4h 35m
Nonstop
7:35 pmIAD

Round-trip total · 1 adult · Taxes included

Mon, Dec 21 – Thu, Dec 31

United Airlines
8:30 amIAD
11h 7m
IAH · 3h 59m
6:37 pmLIR
United Airlines
2:00 pmLIR
4h 35m
Nonstop
7:35 pmIAD

Round-trip total · 1 adult · Taxes included

Mon, Dec 21 – Thu, Dec 31

United Airlines
6:10 amIAD
10h 10m
ORD · 2h 31m
3:20 pmLIR
United Airlines
2:00 pmLIR
4h 35m
Nonstop
7:35 pmIAD

Round-trip total · 1 adult · Taxes included

Make this trip yours

IAD ⇄ LIR

Economy

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

No account needed to see prices.

Already have an account? Log in

Why book with Axel
  • A real airline bookingThe booking is in the airline’s own system under your name. After you book, United Airlines emails you its confirmation code and e-ticket, usually within 15 minutes and occasionally up to a couple of hours while the booking is processed.
  • Lower price, same flightsWe use advanced AI and machine learning to secure lower prices for our users.
  • Not satisfied? Full refund.If you are unhappy with the experience for any reason, or simply change your mind, cancel within 24 hours of booking (departure 7+ days away) and we refund you in full. We stand by our product. Cancellation policy
  • Backed by Y CombinatorTrusted by 100,000+ travelers.

Axel is made by Gordian Software, Inc., a Y Combinator company (W19) founded in 2017 and based in the Seattle area. The company is led by CEO Stephen Grabowski, formerly of Skyscanner. How Axel works · About

More dates

All dates for this routeNov 20, 2026 → Nov 23, 2026Nov 27, 2026 → Dec 4, 2026Nov 20, 2026 · One way
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.

Exact travel datesAirlineFlightsTotal pricePrice issued (UTC)
2026-12-21 → 2026-12-31United AirlinesUA1547 / UA1548$924.002026-10-29T01:07:18Z
2026-12-21 → 2026-12-31Delta Air LinesDL2327 + DL1898 / DL1820 + DL2549$826.002026-10-29T01:07:18Z
2026-12-21 → 2026-12-31American Airlines / United AirlinesAA5649 + AA887 / UA1548$854.002026-10-29T01:07:18Z
2026-12-21 → 2026-12-31American Airlines / United AirlinesAA552 + AA1383 / UA1548$854.002026-10-29T01:07:18Z
2026-12-21 → 2026-12-31United AirlinesUA1524 + UA1737 / UA1548$861.002026-10-29T01:07:18Z
2026-12-21 → 2026-12-31United AirlinesUA565 + UA1120 / UA1548$861.002026-10-29T01:07:18Z

2026-12-21 → 2026-12-31 · $924.00

  • United Airlines UA1547: IAD 2026-12-21 08:51:00 → LIR 2026-12-21 12:50:00; nonstop; 299 minutes. Local airport times.
  • United Airlines UA1548: LIR 2026-12-31 14:00:00 → IAD 2026-12-31 19:35:00; nonstop; 275 minutes. Local airport times.

2026-12-21 → 2026-12-31 · $826.00

  • Delta Air Lines DL2327 / DL1898: IAD 2026-12-21 06:00:00 → LIR 2026-12-21 12:45:00; 1 stop(s) via ATL; 465 minutes. Local airport times.
    • DL2327: IAD 2026-12-21 06:00:00 → ATL 2026-12-21 07:58:00; layover at ATL: 102 minutes.
    • DL1898: ATL 2026-12-21 09:40:00 → LIR 2026-12-21 12:45:00.
  • Delta Air Lines DL1820 / DL2549: LIR 2026-12-31 14:00:00 → IAD 2027-01-01 00:36:00; 1 stop(s) via ATL; 576 minutes. Local airport times.
    • DL1820: LIR 2026-12-31 14:00:00 → ATL 2026-12-31 19:02:00; layover at ATL: 233 minutes.
    • DL2549: ATL 2026-12-31 22:55:00 → IAD 2027-01-01 00:36:00.

2026-12-21 → 2026-12-31 · $854.00

  • American Airlines AA5649 / AA887: IAD 2026-12-21 06:00:00 → LIR 2026-12-21 12:30:00; 1 stop(s) via CLT; 450 minutes. Local airport times.
    • AA5649: IAD 2026-12-21 06:00:00 → CLT 2026-12-21 07:48:00; layover at CLT: 82 minutes.
    • AA887: CLT 2026-12-21 09:10:00 → LIR 2026-12-21 12:30:00.
  • United Airlines UA1548: LIR 2026-12-31 14:00:00 → IAD 2026-12-31 19:35:00; nonstop; 275 minutes. Local airport times.

2026-12-21 → 2026-12-31 · $854.00

  • American Airlines AA552 / AA1383: IAD 2026-12-21 06:01:00 → LIR 2026-12-21 14:19:00; 1 stop(s) via MIA; 558 minutes. Local airport times.
    • AA552: IAD 2026-12-21 06:01:00 → MIA 2026-12-21 08:50:00; layover at MIA: 205 minutes.
    • AA1383: MIA 2026-12-21 12:15:00 → LIR 2026-12-21 14:19:00.
  • United Airlines UA1548: LIR 2026-12-31 14:00:00 → IAD 2026-12-31 19:35:00; nonstop; 275 minutes. Local airport times.

2026-12-21 → 2026-12-31 · $861.00

  • United Airlines UA1524 / UA1737: IAD 2026-12-21 08:30:00 → LIR 2026-12-21 18:37:00; 1 stop(s) via IAH; 667 minutes. Local airport times.
    • UA1524: IAD 2026-12-21 08:30:00 → IAH 2026-12-21 11:06:00; layover at IAH: 239 minutes.
    • UA1737: IAH 2026-12-21 15:05:00 → LIR 2026-12-21 18:37:00.
  • United Airlines UA1548: LIR 2026-12-31 14:00:00 → IAD 2026-12-31 19:35:00; nonstop; 275 minutes. Local airport times.

2026-12-21 → 2026-12-31 · $861.00

  • United Airlines UA565 / UA1120: IAD 2026-12-21 06:10:00 → LIR 2026-12-21 15:20:00; 1 stop(s) via ORD; 610 minutes. Local airport times.
    • UA565: IAD 2026-12-21 06:10:00 → ORD 2026-12-21 07:32:00; layover at ORD: 151 minutes.
    • UA1120: ORD 2026-12-21 10:03:00 → LIR 2026-12-21 15:20:00.
  • United Airlines UA1548: LIR 2026-12-31 14:00:00 → IAD 2026-12-31 19:35:00; nonstop; 275 minutes. Local airport times.

More dates for this route