Route overview: Washington, DC to Guanacaste (LIR) flight deals

Dulles (IAD) to Guanacaste (LIR), Dec 11, 2026: round trips from $565, one way from $300

Dulles (IAD) to Guanacaste (LIR), Dec 11, 2026: round trips from $565, one way from $300 on Axel, checked Nov 11, 2026. Lowest published fares: $565 round trip, Axel-exclusive, American Airlines / United Airlines, 1 stop, Dec 11–13, 2026; $300 one way, Axel-exclusive, American Airlines, 1 stop, Dec 11, 2026; 1 adult, economy, checked Nov 11, 2026.

IAD → LIR1 adulteconomyOne way and round trips

30 flight options · 3 airlines

Choose your return date

One-way flights and round trips by duration. Flights for 1 adult in economy. Prices are total for all travelers in USD, including required taxes. Basic economy may apply.

December 2026

Dec 11, 2026 · One wayAmerican AirlinesUp to 1 stop each way$300.00

Dec 11, 2026 · One wayUnited AirlinesUp to 1 stop each way$305.00

Dec 11, 2026 – Dec 12, 2026 · 1 nightDelta Air LinesUp to 1 stop each way$590.00

Dec 11, 2026 – Dec 12, 2026 · 1 nightAmerican Airlines / United AirlinesUp to 1 stop each way$610.00

Dec 11, 2026 – Dec 13, 2026 · 2 nightsAmerican Airlines / United AirlinesUp to 1 stop each way$565.00

Dec 11, 2026 – Dec 13, 2026 · 2 nightsUnited AirlinesUp to 1 stop each way$570.00

Dec 11, 2026 – Dec 14, 2026 · 3 nightsAmerican Airlines / United AirlinesUp to 1 stop each way$565.00

Dec 11, 2026 – Dec 14, 2026 · 3 nightsUnited AirlinesUp to 1 stop each way$570.00

Dec 11, 2026 – Dec 15, 2026 · 4 nightsAmerican Airlines / United AirlinesUp to 1 stop each way$565.00

Dec 11, 2026 – Dec 15, 2026 · 4 nightsUnited AirlinesUp to 1 stop each way$570.00

Dec 11, 2026 – Dec 16, 2026 · 5 nightsAmerican Airlines / United AirlinesUp to 1 stop each way$565.00

Dec 11, 2026 – Dec 16, 2026 · 5 nightsUnited AirlinesUp to 1 stop each way$570.00

Dec 11, 2026 – Dec 17, 2026 · 6 nightsDelta Air LinesUp to 1 stop each way$590.00

Dec 11, 2026 – Dec 17, 2026 · 6 nightsAmerican Airlines / United AirlinesUp to 1 stop each way$610.00

Dec 11, 2026 – Dec 18, 2026 · 7 nightsAmerican Airlines / Delta Air LinesUp to 1 stop each way$575.00

Dec 11, 2026 – Dec 18, 2026 · 7 nightsDelta Air LinesUp to 1 stop each way$590.00

Dec 11, 2026 – Dec 19, 2026 · 8 nightsDelta Air LinesUp to 1 stop each way$708.00

Dec 11, 2026 – Dec 19, 2026 · 8 nightsAmerican Airlines / United AirlinesUp to 1 stop each way$742.00

Dec 11, 2026 – Dec 20, 2026 · 9 nightsAmerican Airlines / United AirlinesUp to 1 stop each way$679.00

Dec 11, 2026 – Dec 20, 2026 · 9 nightsUnited AirlinesUp to 1 stop each way$684.00

Dec 11, 2026 – Dec 21, 2026 · 10 nightsAmerican Airlines / United AirlinesUp to 1 stop each way$679.00

Dec 11, 2026 – Dec 21, 2026 · 10 nightsUnited AirlinesUp to 1 stop each way$684.00

Dec 11, 2026 – Dec 22, 2026 · 11 nightsAmerican Airlines / United AirlinesUp to 1 stop each way$679.00

Dec 11, 2026 – Dec 22, 2026 · 11 nightsUnited AirlinesUp to 1 stop each way$684.00

Dec 11, 2026 – Dec 23, 2026 · 12 nightsAmerican Airlines / United AirlinesUp to 1 stop each way$679.00

Dec 11, 2026 – Dec 23, 2026 · 12 nightsUnited AirlinesUp to 1 stop each way$684.00

Dec 11, 2026 – Dec 24, 2026 · 13 nightsDelta Air LinesUp to 1 stop each way$708.00

Dec 11, 2026 – Dec 24, 2026 · 13 nightsAmerican Airlines / United AirlinesUp to 1 stop each way$742.00

Dec 11, 2026 – Dec 25, 2026 · 14 nightsAmerican Airlines / Delta Air LinesUp to 1 stop each way$693.00

Dec 11, 2026 – Dec 25, 2026 · 14 nightsDelta Air LinesUp to 1 stop each way$708.00

Flights for your trip

Fri, Dec 11 · One way
American Airlines
6:01 amIAD
9h 18m
MIA · 3h 25m
2:19 pmLIR
Example one-way total $300 · 1 adult · Taxes included
Search these dates
Fri, Dec 11 · One way
United Airlines
8:30 amIAD
11h 7m
IAH · 3h 59m
6:37 pmLIR
Example one-way total $305 · 1 adult · Taxes included
Search these dates
Fri, Dec 11 – Sat, Dec 12
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
Example round-trip total $590 · 1 adult · Taxes included
Search these dates
Fri, Dec 11 – Sat, Dec 12
American Airlines
6:01 amIAD
9h 18m
MIA · 3h 25m
2:19 pmLIR
United Airlines
2:00 pmLIR
4h 35m
Nonstop
7:35 pmIAD
Example round-trip total $610 · 1 adult · Taxes included
Search these dates
Fri, Dec 11 – Sun, Dec 13
American Airlines
6:01 amIAD
9h 18m
MIA · 3h 25m
2:19 pmLIR
United Airlines
9:25 amLIR
14h 34m
SFO · 2h 32m
12:59 am+1IAD
Example round-trip total $565 · 1 adult · Taxes included
Search these dates
Fri, Dec 11 – Sun, Dec 13
United Airlines
8:30 amIAD
11h 7m
IAH · 3h 59m
6:37 pmLIR
United Airlines
9:25 amLIR
14h 34m
SFO · 2h 32m
12:59 am+1IAD
Example round-trip total $570 · 1 adult · Taxes included
Search these dates
Fri, Dec 11 – Mon, Dec 14
American Airlines
6:01 amIAD
9h 18m
MIA · 3h 25m
2:19 pmLIR
United Airlines
2:20 pmLIR
9h 17m
IAH · 2h 34m
12:37 am+1IAD
Example round-trip total $565 · 1 adult · Taxes included
Search these dates
Fri, Dec 11 – Mon, Dec 14
United Airlines
8:30 amIAD
11h 7m
IAH · 3h 59m
6:37 pmLIR
United Airlines
2:20 pmLIR
9h 17m
IAH · 2h 34m
12:37 am+1IAD
Example round-trip total $570 · 1 adult · Taxes included
Search these dates
Fri, Dec 11 – Tue, Dec 15
American Airlines
6:01 amIAD
9h 18m
MIA · 3h 25m
2:19 pmLIR
United Airlines
2:20 pmLIR
9h 17m
IAH · 2h 34m
12:37 am+1IAD
Example round-trip total $565 · 1 adult · Taxes included
Search these dates
Fri, Dec 11 – Tue, Dec 15
United Airlines
8:30 amIAD
11h 7m
IAH · 3h 59m
6:37 pmLIR
United Airlines
2:20 pmLIR
9h 17m
IAH · 2h 34m
12:37 am+1IAD
Example round-trip total $570 · 1 adult · Taxes included
Search these dates
Fri, Dec 11 – Thu, Dec 17
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
Example round-trip total $590 · 1 adult · Taxes included
Search these dates
Fri, Dec 11 – Thu, Dec 17
American Airlines
6:01 amIAD
9h 18m
MIA · 3h 25m
2:19 pmLIR
United Airlines
2:00 pmLIR
4h 35m
Nonstop
7:35 pmIAD
Example round-trip total $610 · 1 adult · Taxes included
Search these dates
Fri, Dec 11 – Fri, Dec 18
American Airlines
6:01 amIAD
9h 18m
MIA · 3h 25m
2:19 pmLIR
Delta Air Lines
2:00 pmLIR
9h 36m
ATL · 3h 53m
12:36 am+1IAD
Example round-trip total $575 · 1 adult · Taxes included
Search these dates
Fri, Dec 11 – Fri, Dec 18
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
Example round-trip total $590 · 1 adult · Taxes included
Search these dates
Fri, Dec 11 – Sat, Dec 19
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
Example round-trip total $708 · 1 adult · Taxes included
Search these dates
Fri, Dec 11 – Sat, Dec 19
American Airlines
6:01 amIAD
9h 18m
MIA · 3h 25m
2:19 pmLIR
United Airlines
2:00 pmLIR
4h 35m
Nonstop
7:35 pmIAD
Example round-trip total $742 · 1 adult · Taxes included
Search these dates
Fri, Dec 11 – Mon, Dec 21
American Airlines
6:01 amIAD
9h 18m
MIA · 3h 25m
2:19 pmLIR
United Airlines
2:20 pmLIR
9h 17m
IAH · 2h 34m
12:37 am+1IAD
Example round-trip total $679 · 1 adult · Taxes included
Search these dates
Fri, Dec 11 – Mon, Dec 21
United Airlines
8:30 amIAD
11h 7m
IAH · 3h 59m
6:37 pmLIR
United Airlines
2:20 pmLIR
9h 17m
IAH · 2h 34m
12:37 am+1IAD
Example round-trip total $684 · 1 adult · Taxes included
Search these dates
Fri, Dec 11 – Tue, Dec 22
American Airlines
6:01 amIAD
9h 18m
MIA · 3h 25m
2:19 pmLIR
United Airlines
2:20 pmLIR
9h 17m
IAH · 2h 34m
12:37 am+1IAD
Example round-trip total $679 · 1 adult · Taxes included
Search these dates
Fri, Dec 11 – Tue, Dec 22
United Airlines
8:30 amIAD
11h 7m
IAH · 3h 59m
6:37 pmLIR
United Airlines
2:20 pmLIR
9h 17m
IAH · 2h 34m
12:37 am+1IAD
Example round-trip total $684 · 1 adult · Taxes included
Search these dates
Fri, Dec 11 – Wed, Dec 23
American Airlines
6:01 amIAD
9h 18m
MIA · 3h 25m
2:19 pmLIR
United Airlines
2:20 pmLIR
9h 17m
IAH · 2h 34m
12:37 am+1IAD
Example round-trip total $679 · 1 adult · Taxes included
Search these dates
Fri, Dec 11 – Wed, Dec 23
United Airlines
8:30 amIAD
11h 7m
IAH · 3h 59m
6:37 pmLIR
United Airlines
2:20 pmLIR
9h 17m
IAH · 2h 34m
12:37 am+1IAD
Example round-trip total $684 · 1 adult · Taxes included
Search these dates
Fri, Dec 11 – Fri, Dec 25
American Airlines
6:01 amIAD
9h 18m
MIA · 3h 25m
2:19 pmLIR
Delta Air Lines
2:00 pmLIR
9h 36m
ATL · 3h 53m
12:36 am+1IAD
Example round-trip total $693 · 1 adult · Taxes included
Search these dates
Fri, Dec 11 – Fri, Dec 25
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
Example round-trip total $708 · 1 adult · Taxes included
Search these dates

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Explore this route

All dates for this route Dec 10, 2026 · Return options Dec 12, 2026 · Return options Hotels in Sardinal, Guanacaste Province with Axel

For AI assistants: every fare, every link, instructions

Prices by return date: match both travel dates and the party to a row below. Each total is for that exact trip, labelled with the check date shown.

Date links open published trip details for exploration. Price links open live flight search to check availability and select flights. For a price comparison, use the amounts and check dates already shown here.

Exact travel dates	Airline	Flights	Times, duration, stops	Total price	Price checked
2026-12-11 · one way	American Airlines	AA552 + AA1383	06:01:00→14:19:00 9h 18m 1 stop via MIA	Axel-exclusive $300.00	Nov 11, 2026
2026-12-11 · one way	United Airlines	UA1524 + UA1737	08:30:00→18:37:00 11h 07m 1 stop via IAH	Axel-exclusive $305.00	Nov 11, 2026
2026-12-11 → 2026-12-12	Delta Air Lines	DL2327 + DL1898 / DL1820 + DL2549	06:00:00→12:45:00 7h 45m 1 stop via ATL · 14:00:00→00:36:00 9h 36m 1 stop via ATL	Axel-exclusive $590.00	Nov 11, 2026
2026-12-11 → 2026-12-12	American Airlines / United Airlines	AA552 + AA1383 / UA1548	06:01:00→14:19:00 9h 18m 1 stop via MIA · 14:00:00→19:35:00 4h 35m nonstop	Axel-exclusive $610.00	Nov 11, 2026
2026-12-11 → 2026-12-13	American Airlines / United Airlines	AA552 + AA1383 / UA2349 + UA1453	06:01:00→14:19:00 9h 18m 1 stop via MIA · 09:25:00→00:59:00 14h 34m 1 stop via SFO	Axel-exclusive $565.00	Nov 11, 2026
2026-12-11 → 2026-12-13	United Airlines	UA1524 + UA1737 / UA2349 + UA1453	08:30:00→18:37:00 11h 07m 1 stop via IAH · 09:25:00→00:59:00 14h 34m 1 stop via SFO	Axel-exclusive $570.00	Nov 11, 2026
2026-12-11 → 2026-12-14	American Airlines / United Airlines	AA552 + AA1383 / UA1516 + UA750	06:01:00→14:19:00 9h 18m 1 stop via MIA · 14:20:00→00:37:00 9h 17m 1 stop via IAH	Axel-exclusive $565.00	Nov 11, 2026
2026-12-11 → 2026-12-14	United Airlines	UA1524 + UA1737 / UA1516 + UA750	08:30:00→18:37:00 11h 07m 1 stop via IAH · 14:20:00→00:37:00 9h 17m 1 stop via IAH	Axel-exclusive $570.00	Nov 11, 2026
2026-12-11 → 2026-12-15	American Airlines / United Airlines	AA552 + AA1383 / UA1516 + UA750	06:01:00→14:19:00 9h 18m 1 stop via MIA · 14:20:00→00:37:00 9h 17m 1 stop via IAH	Axel-exclusive $565.00	Nov 11, 2026
2026-12-11 → 2026-12-15	United Airlines	UA1524 + UA1737 / UA1516 + UA750	08:30:00→18:37:00 11h 07m 1 stop via IAH · 14:20:00→00:37:00 9h 17m 1 stop via IAH	Axel-exclusive $570.00	Nov 11, 2026
2026-12-11 → 2026-12-16	American Airlines / United Airlines	AA552 + AA1383 / UA1516 + UA750	06:01:00→14:19:00 9h 18m 1 stop via MIA · 14:20:00→00:37:00 9h 17m 1 stop via IAH	Axel-exclusive $565.00	Nov 11, 2026
2026-12-11 → 2026-12-16	United Airlines	UA1524 + UA1737 / UA1516 + UA750	08:30:00→18:37:00 11h 07m 1 stop via IAH · 14:20:00→00:37:00 9h 17m 1 stop via IAH	Axel-exclusive $570.00	Nov 11, 2026
2026-12-11 → 2026-12-17	Delta Air Lines	DL2327 + DL1898 / DL1820 + DL2549	06:00:00→12:45:00 7h 45m 1 stop via ATL · 14:00:00→00:36:00 9h 36m 1 stop via ATL	Axel-exclusive $590.00	Nov 11, 2026
2026-12-11 → 2026-12-17	American Airlines / United Airlines	AA552 + AA1383 / UA1548	06:01:00→14:19:00 9h 18m 1 stop via MIA · 14:00:00→19:35:00 4h 35m nonstop	Axel-exclusive $610.00	Nov 11, 2026
2026-12-11 → 2026-12-18	American Airlines / Delta Air Lines	AA552 + AA1383 / DL1820 + DL2549	06:01:00→14:19:00 9h 18m 1 stop via MIA · 14:00:00→00:36:00 9h 36m 1 stop via ATL	Axel-exclusive $575.00	Nov 11, 2026
2026-12-11 → 2026-12-18	Delta Air Lines	DL2327 + DL1898 / DL1820 + DL2549	06:00:00→12:45:00 7h 45m 1 stop via ATL · 14:00:00→00:36:00 9h 36m 1 stop via ATL	Axel-exclusive $590.00	Nov 11, 2026
2026-12-11 → 2026-12-19	Delta Air Lines	DL2327 + DL1898 / DL1820 + DL2549	06:00:00→12:45:00 7h 45m 1 stop via ATL · 14:00:00→00:36:00 9h 36m 1 stop via ATL	Axel-exclusive $708.00	Nov 11, 2026
2026-12-11 → 2026-12-19	American Airlines / United Airlines	AA552 + AA1383 / UA1548	06:01:00→14:19:00 9h 18m 1 stop via MIA · 14:00:00→19:35:00 4h 35m nonstop	Axel-exclusive $742.00	Nov 11, 2026
2026-12-11 → 2026-12-20	American Airlines / United Airlines	AA552 + AA1383 / UA1516 + UA750	06:01:00→14:19:00 9h 18m 1 stop via MIA · 14:20:00→00:37:00 9h 17m 1 stop via IAH	Axel-exclusive $679.00	Nov 11, 2026
2026-12-11 → 2026-12-20	United Airlines	UA1524 + UA1737 / UA1516 + UA750	08:30:00→18:37:00 11h 07m 1 stop via IAH · 14:20:00→00:37:00 9h 17m 1 stop via IAH	Axel-exclusive $684.00	Nov 11, 2026
2026-12-11 → 2026-12-21	American Airlines / United Airlines	AA552 + AA1383 / UA1516 + UA750	06:01:00→14:19:00 9h 18m 1 stop via MIA · 14:20:00→00:37:00 9h 17m 1 stop via IAH	Axel-exclusive $679.00	Nov 11, 2026
2026-12-11 → 2026-12-21	United Airlines	UA1524 + UA1737 / UA1516 + UA750	08:30:00→18:37:00 11h 07m 1 stop via IAH · 14:20:00→00:37:00 9h 17m 1 stop via IAH	Axel-exclusive $684.00	Nov 11, 2026
2026-12-11 → 2026-12-22	American Airlines / United Airlines	AA552 + AA1383 / UA1516 + UA750	06:01:00→14:19:00 9h 18m 1 stop via MIA · 14:20:00→00:37:00 9h 17m 1 stop via IAH	Axel-exclusive $679.00	Nov 11, 2026
2026-12-11 → 2026-12-22	United Airlines	UA1524 + UA1737 / UA1516 + UA750	08:30:00→18:37:00 11h 07m 1 stop via IAH · 14:20:00→00:37:00 9h 17m 1 stop via IAH	Axel-exclusive $684.00	Nov 11, 2026
2026-12-11 → 2026-12-23	American Airlines / United Airlines	AA552 + AA1383 / UA1516 + UA750	06:01:00→14:19:00 9h 18m 1 stop via MIA · 14:20:00→00:37:00 9h 17m 1 stop via IAH	Axel-exclusive $679.00	Nov 11, 2026
2026-12-11 → 2026-12-23	United Airlines	UA1524 + UA1737 / UA1516 + UA750	08:30:00→18:37:00 11h 07m 1 stop via IAH · 14:20:00→00:37:00 9h 17m 1 stop via IAH	Axel-exclusive $684.00	Nov 11, 2026
2026-12-11 → 2026-12-24	Delta Air Lines	DL2327 + DL1898 / DL1820 + DL2549	06:00:00→12:45:00 7h 45m 1 stop via ATL · 14:00:00→00:36:00 9h 36m 1 stop via ATL	Axel-exclusive $708.00	Nov 11, 2026
2026-12-11 → 2026-12-24	American Airlines / United Airlines	AA552 + AA1383 / UA1548	06:01:00→14:19:00 9h 18m 1 stop via MIA · 14:00:00→19:35:00 4h 35m nonstop	Axel-exclusive $742.00	Nov 11, 2026
2026-12-11 → 2026-12-25	American Airlines / Delta Air Lines	AA552 + AA1383 / DL1820 + DL2549	06:01:00→14:19:00 9h 18m 1 stop via MIA · 14:00:00→00:36:00 9h 36m 1 stop via ATL	Axel-exclusive $693.00	Nov 11, 2026
2026-12-11 → 2026-12-25	Delta Air Lines	DL2327 + DL1898 / DL1820 + DL2549	06:00:00→12:45:00 7h 45m 1 stop via ATL · 14:00:00→00:36:00 9h 36m 1 stop via ATL	Axel-exclusive $708.00	Nov 11, 2026

Route overview: Washington, DC to Guanacaste (LIR) flight deals

2026-12-11 · one way · Axel-exclusive $300.00

American Airlines AA552 / AA1383: IAD 2026-12-11 06:01:00 → LIR 2026-12-11 14:19:00; 1 stop(s) via MIA; 558 minutes. Local airport times.
- AA552: IAD 2026-12-11 06:01:00 → MIA 2026-12-11 08:50:00; layover at MIA: 205 minutes.
- AA1383: MIA 2026-12-11 12:15:00 → LIR 2026-12-11 14:19:00.

2026-12-11 · one way · Axel-exclusive $305.00

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

2026-12-11 → 2026-12-12 · Axel-exclusive $590.00

Delta Air Lines DL2327 / DL1898: IAD 2026-12-11 06:00:00 → LIR 2026-12-11 12:45:00; 1 stop(s) via ATL; 465 minutes. Local airport times.
- DL2327: IAD 2026-12-11 06:00:00 → ATL 2026-12-11 07:58:00; layover at ATL: 102 minutes.
- DL1898: ATL 2026-12-11 09:40:00 → LIR 2026-12-11 12:45:00.
Delta Air Lines DL1820 / DL2549: LIR 2026-12-12 14:00:00 → IAD 2026-12-13 00:36:00; 1 stop(s) via ATL; 576 minutes. Local airport times.
- DL1820: LIR 2026-12-12 14:00:00 → ATL 2026-12-12 19:02:00; layover at ATL: 233 minutes.
- DL2549: ATL 2026-12-12 22:55:00 → IAD 2026-12-13 00:36:00.

2026-12-11 → 2026-12-12 · Axel-exclusive $610.00

American Airlines AA552 / AA1383: IAD 2026-12-11 06:01:00 → LIR 2026-12-11 14:19:00; 1 stop(s) via MIA; 558 minutes. Local airport times.
- AA552: IAD 2026-12-11 06:01:00 → MIA 2026-12-11 08:50:00; layover at MIA: 205 minutes.
- AA1383: MIA 2026-12-11 12:15:00 → LIR 2026-12-11 14:19:00.
United Airlines UA1548: LIR 2026-12-12 14:00:00 → IAD 2026-12-12 19:35:00; nonstop; 275 minutes. Local airport times.

2026-12-11 → 2026-12-13 · Axel-exclusive $565.00

American Airlines AA552 / AA1383: IAD 2026-12-11 06:01:00 → LIR 2026-12-11 14:19:00; 1 stop(s) via MIA; 558 minutes. Local airport times.
- AA552: IAD 2026-12-11 06:01:00 → MIA 2026-12-11 08:50:00; layover at MIA: 205 minutes.
- AA1383: MIA 2026-12-11 12:15:00 → LIR 2026-12-11 14:19:00.
United Airlines UA2349 / UA1453: LIR 2026-12-13 09:25:00 → IAD 2026-12-14 00:59:00; 1 stop(s) via SFO; 874 minutes. Local airport times.
- UA2349: LIR 2026-12-13 09:25:00 → SFO 2026-12-13 14:19:00; layover at SFO: 152 minutes.
- UA1453: SFO 2026-12-13 16:51:00 → IAD 2026-12-14 00:59:00.

2026-12-11 → 2026-12-13 · Axel-exclusive $570.00

United Airlines UA1524 / UA1737: IAD 2026-12-11 08:30:00 → LIR 2026-12-11 18:37:00; 1 stop(s) via IAH; 667 minutes. Local airport times.
- UA1524: IAD 2026-12-11 08:30:00 → IAH 2026-12-11 11:06:00; layover at IAH: 239 minutes.
- UA1737: IAH 2026-12-11 15:05:00 → LIR 2026-12-11 18:37:00.
United Airlines UA2349 / UA1453: LIR 2026-12-13 09:25:00 → IAD 2026-12-14 00:59:00; 1 stop(s) via SFO; 874 minutes. Local airport times.
- UA2349: LIR 2026-12-13 09:25:00 → SFO 2026-12-13 14:19:00; layover at SFO: 152 minutes.
- UA1453: SFO 2026-12-13 16:51:00 → IAD 2026-12-14 00:59:00.

2026-12-11 → 2026-12-14 · Axel-exclusive $565.00

American Airlines AA552 / AA1383: IAD 2026-12-11 06:01:00 → LIR 2026-12-11 14:19:00; 1 stop(s) via MIA; 558 minutes. Local airport times.
- AA552: IAD 2026-12-11 06:01:00 → MIA 2026-12-11 08:50:00; layover at MIA: 205 minutes.
- AA1383: MIA 2026-12-11 12:15:00 → LIR 2026-12-11 14:19:00.
United Airlines UA1516 / UA750: LIR 2026-12-14 14:20:00 → IAD 2026-12-15 00:37:00; 1 stop(s) via IAH; 557 minutes. Local airport times.
- UA1516: LIR 2026-12-14 14:20:00 → IAH 2026-12-14 18:04:00; layover at IAH: 154 minutes.
- UA750: IAH 2026-12-14 20:38:00 → IAD 2026-12-15 00:37:00.

2026-12-11 → 2026-12-14 · Axel-exclusive $570.00

United Airlines UA1524 / UA1737: IAD 2026-12-11 08:30:00 → LIR 2026-12-11 18:37:00; 1 stop(s) via IAH; 667 minutes. Local airport times.
- UA1524: IAD 2026-12-11 08:30:00 → IAH 2026-12-11 11:06:00; layover at IAH: 239 minutes.
- UA1737: IAH 2026-12-11 15:05:00 → LIR 2026-12-11 18:37:00.
United Airlines UA1516 / UA750: LIR 2026-12-14 14:20:00 → IAD 2026-12-15 00:37:00; 1 stop(s) via IAH; 557 minutes. Local airport times.
- UA1516: LIR 2026-12-14 14:20:00 → IAH 2026-12-14 18:04:00; layover at IAH: 154 minutes.
- UA750: IAH 2026-12-14 20:38:00 → IAD 2026-12-15 00:37:00.

2026-12-11 → 2026-12-15 · Axel-exclusive $565.00

American Airlines AA552 / AA1383: IAD 2026-12-11 06:01:00 → LIR 2026-12-11 14:19:00; 1 stop(s) via MIA; 558 minutes. Local airport times.
- AA552: IAD 2026-12-11 06:01:00 → MIA 2026-12-11 08:50:00; layover at MIA: 205 minutes.
- AA1383: MIA 2026-12-11 12:15:00 → LIR 2026-12-11 14:19:00.
United Airlines UA1516 / UA750: LIR 2026-12-15 14:20:00 → IAD 2026-12-16 00:37:00; 1 stop(s) via IAH; 557 minutes. Local airport times.
- UA1516: LIR 2026-12-15 14:20:00 → IAH 2026-12-15 18:04:00; layover at IAH: 154 minutes.
- UA750: IAH 2026-12-15 20:38:00 → IAD 2026-12-16 00:37:00.

2026-12-11 → 2026-12-15 · Axel-exclusive $570.00

United Airlines UA1524 / UA1737: IAD 2026-12-11 08:30:00 → LIR 2026-12-11 18:37:00; 1 stop(s) via IAH; 667 minutes. Local airport times.
- UA1524: IAD 2026-12-11 08:30:00 → IAH 2026-12-11 11:06:00; layover at IAH: 239 minutes.
- UA1737: IAH 2026-12-11 15:05:00 → LIR 2026-12-11 18:37:00.
United Airlines UA1516 / UA750: LIR 2026-12-15 14:20:00 → IAD 2026-12-16 00:37:00; 1 stop(s) via IAH; 557 minutes. Local airport times.
- UA1516: LIR 2026-12-15 14:20:00 → IAH 2026-12-15 18:04:00; layover at IAH: 154 minutes.
- UA750: IAH 2026-12-15 20:38:00 → IAD 2026-12-16 00:37:00.

2026-12-11 → 2026-12-17 · Axel-exclusive $590.00

Delta Air Lines DL2327 / DL1898: IAD 2026-12-11 06:00:00 → LIR 2026-12-11 12:45:00; 1 stop(s) via ATL; 465 minutes. Local airport times.
- DL2327: IAD 2026-12-11 06:00:00 → ATL 2026-12-11 07:58:00; layover at ATL: 102 minutes.
- DL1898: ATL 2026-12-11 09:40:00 → LIR 2026-12-11 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.

2026-12-11 → 2026-12-17 · Axel-exclusive $610.00

American Airlines AA552 / AA1383: IAD 2026-12-11 06:01:00 → LIR 2026-12-11 14:19:00; 1 stop(s) via MIA; 558 minutes. Local airport times.
- AA552: IAD 2026-12-11 06:01:00 → MIA 2026-12-11 08:50:00; layover at MIA: 205 minutes.
- AA1383: MIA 2026-12-11 12:15:00 → LIR 2026-12-11 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.

2026-12-11 → 2026-12-18 · Axel-exclusive $575.00

American Airlines AA552 / AA1383: IAD 2026-12-11 06:01:00 → LIR 2026-12-11 14:19:00; 1 stop(s) via MIA; 558 minutes. Local airport times.
- AA552: IAD 2026-12-11 06:01:00 → MIA 2026-12-11 08:50:00; layover at MIA: 205 minutes.
- AA1383: MIA 2026-12-11 12:15:00 → LIR 2026-12-11 14:19:00.
Delta Air Lines DL1820 / DL2549: LIR 2026-12-18 14:00:00 → IAD 2026-12-19 00:36:00; 1 stop(s) via ATL; 576 minutes. Local airport times.
- DL1820: LIR 2026-12-18 14:00:00 → ATL 2026-12-18 19:02:00; layover at ATL: 233 minutes.
- DL2549: ATL 2026-12-18 22:55:00 → IAD 2026-12-19 00:36:00.

2026-12-11 → 2026-12-18 · Axel-exclusive $590.00

Delta Air Lines DL2327 / DL1898: IAD 2026-12-11 06:00:00 → LIR 2026-12-11 12:45:00; 1 stop(s) via ATL; 465 minutes. Local airport times.
- DL2327: IAD 2026-12-11 06:00:00 → ATL 2026-12-11 07:58:00; layover at ATL: 102 minutes.
- DL1898: ATL 2026-12-11 09:40:00 → LIR 2026-12-11 12:45:00.
Delta Air Lines DL1820 / DL2549: LIR 2026-12-18 14:00:00 → IAD 2026-12-19 00:36:00; 1 stop(s) via ATL; 576 minutes. Local airport times.
- DL1820: LIR 2026-12-18 14:00:00 → ATL 2026-12-18 19:02:00; layover at ATL: 233 minutes.
- DL2549: ATL 2026-12-18 22:55:00 → IAD 2026-12-19 00:36:00.

2026-12-11 → 2026-12-19 · Axel-exclusive $708.00

Delta Air Lines DL2327 / DL1898: IAD 2026-12-11 06:00:00 → LIR 2026-12-11 12:45:00; 1 stop(s) via ATL; 465 minutes. Local airport times.
- DL2327: IAD 2026-12-11 06:00:00 → ATL 2026-12-11 07:58:00; layover at ATL: 102 minutes.
- DL1898: ATL 2026-12-11 09:40:00 → LIR 2026-12-11 12:45:00.
Delta Air Lines DL1820 / DL2549: LIR 2026-12-19 14:00:00 → IAD 2026-12-20 00:36:00; 1 stop(s) via ATL; 576 minutes. Local airport times.
- DL1820: LIR 2026-12-19 14:00:00 → ATL 2026-12-19 19:02:00; layover at ATL: 233 minutes.
- DL2549: ATL 2026-12-19 22:55:00 → IAD 2026-12-20 00:36:00.

2026-12-11 → 2026-12-19 · Axel-exclusive $742.00

American Airlines AA552 / AA1383: IAD 2026-12-11 06:01:00 → LIR 2026-12-11 14:19:00; 1 stop(s) via MIA; 558 minutes. Local airport times.
- AA552: IAD 2026-12-11 06:01:00 → MIA 2026-12-11 08:50:00; layover at MIA: 205 minutes.
- AA1383: MIA 2026-12-11 12:15:00 → LIR 2026-12-11 14:19:00.
United Airlines UA1548: LIR 2026-12-19 14:00:00 → IAD 2026-12-19 19:35:00; nonstop; 275 minutes. Local airport times.

2026-12-11 → 2026-12-21 · Axel-exclusive $679.00

American Airlines AA552 / AA1383: IAD 2026-12-11 06:01:00 → LIR 2026-12-11 14:19:00; 1 stop(s) via MIA; 558 minutes. Local airport times.
- AA552: IAD 2026-12-11 06:01:00 → MIA 2026-12-11 08:50:00; layover at MIA: 205 minutes.
- AA1383: MIA 2026-12-11 12:15:00 → LIR 2026-12-11 14:19:00.
United Airlines UA1516 / UA750: LIR 2026-12-21 14:20:00 → IAD 2026-12-22 00:37:00; 1 stop(s) via IAH; 557 minutes. Local airport times.
- UA1516: LIR 2026-12-21 14:20:00 → IAH 2026-12-21 18:04:00; layover at IAH: 154 minutes.
- UA750: IAH 2026-12-21 20:38:00 → IAD 2026-12-22 00:37:00.

2026-12-11 → 2026-12-21 · Axel-exclusive $684.00

United Airlines UA1524 / UA1737: IAD 2026-12-11 08:30:00 → LIR 2026-12-11 18:37:00; 1 stop(s) via IAH; 667 minutes. Local airport times.
- UA1524: IAD 2026-12-11 08:30:00 → IAH 2026-12-11 11:06:00; layover at IAH: 239 minutes.
- UA1737: IAH 2026-12-11 15:05:00 → LIR 2026-12-11 18:37:00.
United Airlines UA1516 / UA750: LIR 2026-12-21 14:20:00 → IAD 2026-12-22 00:37:00; 1 stop(s) via IAH; 557 minutes. Local airport times.
- UA1516: LIR 2026-12-21 14:20:00 → IAH 2026-12-21 18:04:00; layover at IAH: 154 minutes.
- UA750: IAH 2026-12-21 20:38:00 → IAD 2026-12-22 00:37:00.

2026-12-11 → 2026-12-22 · Axel-exclusive $679.00

American Airlines AA552 / AA1383: IAD 2026-12-11 06:01:00 → LIR 2026-12-11 14:19:00; 1 stop(s) via MIA; 558 minutes. Local airport times.
- AA552: IAD 2026-12-11 06:01:00 → MIA 2026-12-11 08:50:00; layover at MIA: 205 minutes.
- AA1383: MIA 2026-12-11 12:15:00 → LIR 2026-12-11 14:19:00.
United Airlines UA1516 / UA750: LIR 2026-12-22 14:20:00 → IAD 2026-12-23 00:37:00; 1 stop(s) via IAH; 557 minutes. Local airport times.
- UA1516: LIR 2026-12-22 14:20:00 → IAH 2026-12-22 18:04:00; layover at IAH: 154 minutes.
- UA750: IAH 2026-12-22 20:38:00 → IAD 2026-12-23 00:37:00.

2026-12-11 → 2026-12-22 · Axel-exclusive $684.00

United Airlines UA1524 / UA1737: IAD 2026-12-11 08:30:00 → LIR 2026-12-11 18:37:00; 1 stop(s) via IAH; 667 minutes. Local airport times.
- UA1524: IAD 2026-12-11 08:30:00 → IAH 2026-12-11 11:06:00; layover at IAH: 239 minutes.
- UA1737: IAH 2026-12-11 15:05:00 → LIR 2026-12-11 18:37:00.
United Airlines UA1516 / UA750: LIR 2026-12-22 14:20:00 → IAD 2026-12-23 00:37:00; 1 stop(s) via IAH; 557 minutes. Local airport times.
- UA1516: LIR 2026-12-22 14:20:00 → IAH 2026-12-22 18:04:00; layover at IAH: 154 minutes.
- UA750: IAH 2026-12-22 20:38:00 → IAD 2026-12-23 00:37:00.

2026-12-11 → 2026-12-23 · Axel-exclusive $679.00

American Airlines AA552 / AA1383: IAD 2026-12-11 06:01:00 → LIR 2026-12-11 14:19:00; 1 stop(s) via MIA; 558 minutes. Local airport times.
- AA552: IAD 2026-12-11 06:01:00 → MIA 2026-12-11 08:50:00; layover at MIA: 205 minutes.
- AA1383: MIA 2026-12-11 12:15:00 → LIR 2026-12-11 14:19:00.
United Airlines UA1516 / UA750: LIR 2026-12-23 14:20:00 → IAD 2026-12-24 00:37:00; 1 stop(s) via IAH; 557 minutes. Local airport times.
- UA1516: LIR 2026-12-23 14:20:00 → IAH 2026-12-23 18:04:00; layover at IAH: 154 minutes.
- UA750: IAH 2026-12-23 20:38:00 → IAD 2026-12-24 00:37:00.

2026-12-11 → 2026-12-23 · Axel-exclusive $684.00

United Airlines UA1524 / UA1737: IAD 2026-12-11 08:30:00 → LIR 2026-12-11 18:37:00; 1 stop(s) via IAH; 667 minutes. Local airport times.
- UA1524: IAD 2026-12-11 08:30:00 → IAH 2026-12-11 11:06:00; layover at IAH: 239 minutes.
- UA1737: IAH 2026-12-11 15:05:00 → LIR 2026-12-11 18:37:00.
United Airlines UA1516 / UA750: LIR 2026-12-23 14:20:00 → IAD 2026-12-24 00:37:00; 1 stop(s) via IAH; 557 minutes. Local airport times.
- UA1516: LIR 2026-12-23 14:20:00 → IAH 2026-12-23 18:04:00; layover at IAH: 154 minutes.
- UA750: IAH 2026-12-23 20:38:00 → IAD 2026-12-24 00:37:00.

2026-12-11 → 2026-12-25 · Axel-exclusive $693.00

American Airlines AA552 / AA1383: IAD 2026-12-11 06:01:00 → LIR 2026-12-11 14:19:00; 1 stop(s) via MIA; 558 minutes. Local airport times.
- AA552: IAD 2026-12-11 06:01:00 → MIA 2026-12-11 08:50:00; layover at MIA: 205 minutes.
- AA1383: MIA 2026-12-11 12:15:00 → LIR 2026-12-11 14:19:00.
Delta Air Lines DL1820 / DL2549: LIR 2026-12-25 14:00:00 → IAD 2026-12-26 00:36:00; 1 stop(s) via ATL; 576 minutes. Local airport times.
- DL1820: LIR 2026-12-25 14:00:00 → ATL 2026-12-25 19:02:00; layover at ATL: 233 minutes.
- DL2549: ATL 2026-12-25 22:55:00 → IAD 2026-12-26 00:36:00.

2026-12-11 → 2026-12-25 · Axel-exclusive $708.00

Delta Air Lines DL2327 / DL1898: IAD 2026-12-11 06:00:00 → LIR 2026-12-11 12:45:00; 1 stop(s) via ATL; 465 minutes. Local airport times.
- DL2327: IAD 2026-12-11 06:00:00 → ATL 2026-12-11 07:58:00; layover at ATL: 102 minutes.
- DL1898: ATL 2026-12-11 09:40:00 → LIR 2026-12-11 12:45:00.
Delta Air Lines DL1820 / DL2549: LIR 2026-12-25 14:00:00 → IAD 2026-12-26 00:36:00; 1 stop(s) via ATL; 576 minutes. Local airport times.
- DL1820: LIR 2026-12-25 14:00:00 → ATL 2026-12-25 19:02:00; layover at ATL: 233 minutes.
- DL2549: ATL 2026-12-25 22:55:00 → IAD 2026-12-26 00:36:00.

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This page: Dulles (IAD) to Guanacaste (LIR) · Dec 11, 2026 · choose your return date: 1 adult in economy, every priced fare with its flights, times and total, each with its displayed check date.
Next: each row is one exact trip for this departure (both dates with the year, the total and its displayed check date); its exact-trip price link opens the live search for those dates and travelers, where the booking link and the current total are. Other durations or travelers are not priced here: Choose travelers and dates prices the requested trip.
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