Route Price Intelligence
Cheap Flights From Washington, D.C. to San Juan
Live pricing benchmarks, monthly patterns, and historical lows for this route.
⭐ Great DealFound 4d ago
$131San Juan from Washington Dulles is just $131 round trip on Frontier, about 48% off the typical $254 fare for this route. With winter dates open, it's a budget-friendly way to trade the cold for Puerto Rico's beaches and Old San Juan's cobblestone streets.
✓ 3 date combinations found at this price
Search Google FlightsTypical Price
$316
Great Deal
Under $105
Typical Range
$105 – $380
Lowest We've Seen
$105
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: October33,888 fares analyzedTypical low: $333
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