United Airlines
Star Alliance
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United States
Washington Dulles International Airport
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Costa Rica
Daniel Oduber Quirós International Airport
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Scan through all non-stop flights from Washington to Liberia. The full flight schedule below gives an overview of all non-stop flights from IAD to LIR, which includes the daily timetable of every operating airline for the upcoming 12 months.
Note: for airline-specific flight schedules, please scroll further down.
Liberia is a tropical destination known for its warm climate, with temperatures between 25°C and 30°C (77°F to 86°F) throughout the year. The area is characterized by high humidity and frequent rainfall.
Being located north of the equator, Liberia experiences its dry season from November to April, making this the perfect time to visit. In this period, you can expect mostly dry conditions, while the wet season will see days of rain. Humidity and temperatures are consistently high all year long.
Currently, there is only one airline operating non-stop flights from Washington IAD to Liberia LIR, which is United Airlines. This section gives an overview of the flight schedules and timetables of every airline with direct flights for this route.
Click an airline below to view their IAD LIR flight schedule.
Flights from IAD to LIR are operated 3 times a week, with an average of 1 flight per day. All flights depart at 08:51.
You can fly in Economy and Business Class. Premium Economy and First Class are not available on this route (at least not as a non-stop flight).
The fastest direct flight from Washington to Liberia takes 4 hours and 59 minutes. The flight distance between Washington and Liberia is 2,020 miles (or 3,251 km).
There is 1 airport in Liberia: Daniel Oduber Quirós International Airport (LIR).
There are 3 flights per week flying from Washington to Liberia (as of August 2026).
4 hours and 59 minutes is the average flight time from Washington to Liberia.
The distance from Washington to Liberia is 2,020 miles (3,251 kilometers).
United Airlines is the only airline flying nonstop from Washington to Liberia.
Star Alliance is currently the only alliance flying nonstop from Washington to Liberia.
You can fly non-stop in Economy and Business Class.
Aircraft types that fly from Washington to Liberia:
The earliest flight departs at 08:51 from Washington and arrives at 12:50 at Liberia.
The latest flight departs at 08:51 from Washington and arrives at 12:50 at Liberia.
2,020 miles (3,251 km) · 4h 59m
08:51
12:50
United Airlines
Star Alliance
UA 1547
United Airlines
Boeing 737 MAX 9
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