Direct (non-stop) flights from Washington (IAD) to San Juan (SJU)
Find comprehensive flight information, schedules, and booking details for direct flights from Washington (IAD) to San Juan (SJU). This popular route is operated by 2 airlines, offering multiple daily departures.• Flight Duration: 3h 45m - 4h 00m (average flight time)• Distance: 1583 miles (2547 km) (air miles between airports)• Daily Flights: 2-3 flights (scheduled departures per day)
Washington (IAD)
San Juan (SJU)
FLIGHT TIME
3h 45m - 4h 00m
FLIGHT DISTANCE
1583 miles (2547 km)
3h 47m - 3h 50m
08:27
20:06
1583 miles (2547 km)
April
2 (Show)
19
Flight Schedule
December 2025
Airlines with direct flights from Washington (IAD) to San Juan (SJU)
Route Insights
Duration variability: Flight duration on this route can vary based on aircraft type, wind conditions, and airline scheduling. Average duration is 3h 45m - 4h 00m.
Pricing patterns: April typically offers lower prices due to reduced demand outside peak travel seasons.
Best departure times: Peak departure times are 8:00, 17:00, 20:00, offering more flight options and potentially better connections.
Washington (IAD) - San Juan (SJU) flight price statistics
$471
ApproximateThe numbers are average prices found based on user searches for direct flights between the airports. It's calculated from the cheapest prices found per month for a round-trip with 1 adult and can vary depending on the amount of data we have for this particular route.
$353
Jan$531
Feb$389
Mar$259
Apr$914
May$489
Jun$489
Jul$345
Aug$345
Sep$345
Oct$345
Nov$849
DecRelated Information
Airports: IAD • SJU Airport
Airlines operating this route: United Airlines (UA), Frontier Airlines
Frequently Asked Questions
How many flights operate from IAD to SJU?
There are 3 direct flights operating from IAD to SJU. Approximately 2-3 flights daily.
Which airlines operate flights from IAD to SJU?
2 airlines operate on this route: United Airlines, Frontier Airlines.
How long is the flight from IAD to SJU?
The flight duration from IAD to SJU is approximately 3h 45m - 4h 00m.
What is the distance from IAD to SJU?
The distance from IAD to SJU is 1583 miles (2547 km).
What is the flight time range for this route?
Flight times on this route range from 3h 47m - 3h 50m.
What are the earliest and latest flight departure times?
The earliest flight departs at 08:27 and the latest flight departs at 20:06.
What is the cheapest month to fly from IAD to SJU?
April is typically the cheapest month to fly on this route.
How many flights operate per week on this route?
Approximately 19 flights operate per week from IAD to SJU.
What types of aircraft operate on this route?
This route is served by Boeing 737MAX 9 Passenger, Boeing 737-900 Passenger, Airbus A320neo.
What is the average flight price from IAD to SJU?
The average flight price for a round-trip ticket from IAD to SJU is approximately $471 USD. Prices can vary based on booking time, season, and airline.
When is the best time to book flights from IAD to SJU for the lowest prices?
April is typically the cheapest month to fly from IAD to SJU. Booking in advance and avoiding peak travel seasons can help you find better deals.
How many airlines offer flights from IAD to SJU?
2 airlines offer direct flights from IAD to SJU, providing travelers with multiple options for scheduling and pricing.
How far is SJU from IAD?
The distance from IAD to SJU is 1583 miles (2547 km). This is a long-haul flight route.
How long does it take to fly from IAD to SJU?
The flight time from IAD to SJU is approximately 3h 45m - 4h 00m. Actual flight duration may vary based on weather conditions, aircraft type, and routing.