Find Copa Airlines flights from Washington Dulles (IAD) to San José (SJO) from USD 366*

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Best prices on Washington Dulles to San José flights

Aug 2026
FromUSD 431*
Viewed 1 day ago
Round trip/Economy
Sep 2026
FromUSD 366*
Viewed 1 day ago
Round trip/Economy
Oct 2026
FromUSD 366*
Viewed 1 day ago
Round trip/Economy
cmp-daily-histogram-bars-legend-min-price-aria-label USD 366
cmp-daily-histogram-bars-legend-max-price-aria-label USD 601
Displaying fares for August-2026
  • IAD–SJO: cmp-view-offers-disclaimer. Check availability
    23

    Sun

    AUG

  • IAD–SJO, Aug 24, 2026 – Sep 27, 2026: From USD 483
    24

    Mon

  • IAD–SJO: cmp-view-offers-disclaimer. Check availability
    25

    Tue

  • IAD–SJO: cmp-view-offers-disclaimer. Check availability
    26

    Wed

  • IAD–SJO: cmp-view-offers-disclaimer. Check availability
    27

    Thu

  • IAD–SJO, Aug 28, 2026 – Aug 31, 2026: From USD 525
    28

    Fri

  • IAD–SJO, Aug 29, 2026 – Aug 31, 2026: From USD 472
    29

    Sat

  • IAD–SJO, Aug 30, 2026 – Sep 03, 2026: From USD 431
    30

    Sun

  • IAD–SJO, Aug 31, 2026 – Sep 03, 2026: From USD 452
    31

    Mon

  • IAD–SJO: cmp-view-offers-disclaimer. Check availability
    01

    Tue

    SEP

  • IAD–SJO: cmp-view-offers-disclaimer. Check availability
    02

    Wed

  • IAD–SJO, Sep 03, 2026 – Sep 06, 2026: From USD 429
    03

    Thu

  • IAD–SJO, Sep 04, 2026 – Sep 07, 2026: From USD 407
    04

    Fri

  • IAD–SJO: cmp-view-offers-disclaimer. Check availability
    05

    Sat

  • IAD–SJO, Sep 06, 2026 – Sep 16, 2026: From USD 429
    06

    Sun

  • IAD–SJO, Sep 07, 2026 – Sep 16, 2026: From USD 601
    07

    Mon

  • IAD–SJO, Sep 08, 2026 – Sep 16, 2026: From USD 449
    08

    Tue

  • IAD–SJO, Sep 09, 2026 – Sep 15, 2026: From USD 366
    09

    Wed

  • IAD–SJO, Sep 10, 2026 – Sep 16, 2026: From USD 366
    10

    Thu

  • IAD–SJO: cmp-view-offers-disclaimer. Check availability
    11

    Fri

  • IAD–SJO: cmp-view-offers-disclaimer. Check availability
    12

    Sat

  • IAD–SJO: cmp-view-offers-disclaimer. Check availability
    13

    Sun

  • IAD–SJO: cmp-view-offers-disclaimer. Check availability
    14

    Mon

  • IAD–SJO: cmp-view-offers-disclaimer. Check availability
    15

    Tue

  • IAD–SJO: cmp-view-offers-disclaimer. Check availability
    16

    Wed

  • IAD–SJO: cmp-view-offers-disclaimer. Check availability
    17

    Thu

  • IAD–SJO: cmp-view-offers-disclaimer. Check availability
    18

    Fri

  • IAD–SJO, Sep 19, 2026 – Sep 24, 2026: From USD 366
    19

    Sat

  • IAD–SJO, Sep 20, 2026 – Sep 24, 2026: From USD 429
    20

    Sun

  • IAD–SJO: cmp-view-offers-disclaimer. Check availability
    21

    Mon

  • IAD–SJO: cmp-view-offers-disclaimer. Check availability
    22

    Tue

    • FromUSD 366-USD 601

    *Restrictions apply; please see Terms & Conditions.

    Best airfares from Washington Dulles to San José flights

    USD
    Best airfares from Washington Dulles to San José flights
    From
    To
    Fare Type
    Dates
    Price
    Washington Dulles (IAD)San José (SJO)Round trip
    /
    Economy    		Oct 31, 2026 - Nov 09, 2026

    From

    USD 366

    Viewed 1 day ago

    Washington Dulles (IAD)San José (SJO)Round trip
    /
    Economy    		Oct 26, 2026 - Nov 04, 2026

    From

    USD 366

    Viewed 13 hours ago

    Washington Dulles (IAD)San José (SJO)Round trip
    /
    Economy    		Sep 19, 2026 - Sep 24, 2026

    From

    USD 366

    Viewed 1 day ago

    Washington Dulles (IAD)San José (SJO)Round trip
    /
    Economy    		Sep 09, 2026 - Sep 15, 2026

    From

    USD 366

    Viewed 1 day ago

    Washington Dulles (IAD)San José (SJO)Round trip
    /
    Economy    		Sep 10, 2026 - Sep 16, 2026

    From

    USD 366

    Viewed 1 day ago

    *Fares displayed have been collected within the last 48hrs and may no longer be available at time of booking. Additional fees and charges for optional products and services may apply.
    *Restrictions apply; please see Terms & Conditions.

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