Flights from Washington, D.C. to San Juan, PR

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Best Deals on Flights From Washington, D.C. (IAD) to San Juan, PR (SJU)

Aug 2026
from$108*
Last seen: 17 hours ago
One-way/Economy
Sep 2026
from$101*
Last seen: 18 hours ago
One-way/Economy
Oct 2026
from$82*
Last seen: 2 hours ago
One-way/Economy
cmp-daily-histogram-bars-legend-min-price-aria-label $108
cmp-daily-histogram-bars-legend-max-price-aria-label $195
Displaying fares for August-2026
  • IAD–SJU: cmp-view-offers-disclaimer. Find Offers
    14

    Fri

    AUG

  • IAD–SJU: cmp-view-offers-disclaimer. Find Offers
    15

    Sat

  • IAD–SJU: cmp-view-offers-disclaimer. Find Offers
    16

    Sun

  • IAD–SJU, Aug 17, 2026: from $161
    17

    Mon

  • IAD–SJU: cmp-view-offers-disclaimer. Find Offers
    18

    Tue

  • IAD–SJU, Aug 19, 2026: from $163
    19

    Wed

  • IAD–SJU, Aug 20, 2026: from $190
    20

    Thu

  • IAD–SJU, Aug 21, 2026: from $168
    21

    Fri

  • IAD–SJU, Aug 22, 2026: from $108
    22

    Sat

  • IAD–SJU, Aug 23, 2026: from $119
    23

    Sun

  • IAD–SJU, Aug 24, 2026: from $155
    24

    Mon

  • IAD–SJU, Aug 25, 2026: from $149
    25

    Tue

  • IAD–SJU, Aug 26, 2026: from $160
    26

    Wed

  • IAD–SJU, Aug 27, 2026: from $195
    27

    Thu

  • IAD–SJU: cmp-view-offers-disclaimer. Find Offers
    28

    Fri

  • IAD–SJU: cmp-view-offers-disclaimer. Find Offers
    29

    Sat

  • IAD–SJU, Aug 30, 2026: from $169
    30

    Sun

  • IAD–SJU: cmp-view-offers-disclaimer. Find Offers
    31

    Mon

  • IAD–SJU: cmp-view-offers-disclaimer. Find Offers
    01

    Tue

    SEP

  • IAD–SJU: cmp-view-offers-disclaimer. Find Offers
    02

    Wed

  • IAD–SJU: cmp-view-offers-disclaimer. Find Offers
    03

    Thu

  • IAD–SJU, Sep 4, 2026: from $175
    04

    Fri

  • IAD–SJU: cmp-view-offers-disclaimer. Find Offers
    05

    Sat

  • IAD–SJU: cmp-view-offers-disclaimer. Find Offers
    06

    Sun

  • IAD–SJU: cmp-view-offers-disclaimer. Find Offers
    07

    Mon

  • IAD–SJU: cmp-view-offers-disclaimer. Find Offers
    08

    Tue

  • IAD–SJU: cmp-view-offers-disclaimer. Find Offers
    09

    Wed

  • IAD–SJU: cmp-view-offers-disclaimer. Find Offers
    10

    Thu

  • IAD–SJU: cmp-view-offers-disclaimer. Find Offers
    11

    Fri

  • IAD–SJU: cmp-view-offers-disclaimer. Find Offers
    12

    Sat

  • IAD–SJU, Sep 13, 2026: from $158
    13

    Sun

    • Range$108-$195

    *Prices found by others in the previous 48 hours for round-trip flights. Prices shown may also require membership in our travel club, Discount Den.

    Flights Deals from Washington, D.C. to San Juan, PR on Frontier

    $
    Flights Deals from Washington, D.C. to San Juan, PR on Frontier
    From
    To
    Washington, D.C. (IAD)San Juan, PR (SJU)One-way
    /
    Discount Den Basic Fare    		Departing Nov 12, 2026

    From

    $104

    Last seen: 6 hours ago

    *Prices found by others in the previous 48 hours for one-way flights. Prices shown may also require membership in our travel club, Discount Den®.

    Washington, D.C. San Juan, PR

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