Route Price Intelligence
Cheap Flights From Washington, D.C. to San Juan
Live pricing benchmarks, monthly patterns, and historical lows for this route.
🔥 Fire DealFound 3d ago
$178Frontier is flying nonstop from Washington Dulles to San Juan for $178, usually around $370 round trip. Puerto Rico needs no passport and stays warm year round, with fares like this available for fall and winter travel.
✓ 7 date combinations found at this price
Search Google FlightsTypical Price
$316
Great Deal
Under $168
Typical Range
$168 – $380
Lowest We've Seen
$118
Based on 271 price pointshigh confidence
Monthly Price Guide
Jan
$341
Feb
$319
Mar
$400
Apr
$319
May
—
Jun
—
Jul
—
Aug
$300
Sep
$267
Oct
$296
Nov
$302
Dec
$339
Cheapest Average Expensive
Best Time to Fly from Washington, D.C. to San Juan
The cheapest time to fly from Washington, D.C. to San Juan is typically September, when fares average around $267. The most expensive month tends to be March at around $400. For the best deals, consider flying in September, October, August.
Typical Price by Travel Month
Median round-trip fare for each month, with the typical price range, from our ongoing tracking of this route
Cheapest month: September44,816 fares analyzedTypical low: $324