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Route overview: Seattle to Santiago (STI) flight deals

Seattle (SEA) to Santiago (STI), Apr 11, 2027: round trips from $665, one way from $347

Seattle (SEA) to Santiago (STI), Apr 11, 2027: round trips from $665, one way from $347 on Axel, checked Nov 14, 2026. Lowest published fares: $665 round trip, Axel-exclusive, American Airlines, 1 stop, Apr 11–13, 2027; $347 one way, Axel-exclusive, American Airlines, 1 stop, Apr 11, 2027; 1 adult, economy, checked Nov 14, 2026.

SEA → STI1 adulteconomyOne way and round trips

32 flight options · 3 airlines

Choose your return date

One-way flights and round trips by duration. Flights for 1 adult in economy. Prices are total for all travelers in USD, including required taxes. Basic economy may apply.

April 2027

Flights for your trip

  1. Sun, Apr 11 · One way

    American Airlines
    11:17 pmSEA
    11h 59m
    PHL · 3h 16m
    2:16 pm+1STI

    Example one-way total $347 · 1 adult · Taxes included

  2. Sun, Apr 11 · One way

    United Airlines
    11:15 pmSEA
    11h 38m
    EWR · 2h 43m
    1:53 pm+1STI

    Example one-way total $356 · 1 adult · Taxes included

  3. Sun, Apr 11 – Tue, Apr 13

    American Airlines
    11:17 pmSEA
    11h 59m
    PHL · 3h 16m
    2:16 pm+1STI
    American Airlines
    5:02 pmSTI
    11h 57m
    MIA · 2h 36m
    1:59 am+1SEA

    Example round-trip total $665 · 1 adult · Taxes included

  4. Sun, Apr 11 – Tue, Apr 13

    United Airlines
    11:15 pmSEA
    11h 38m
    EWR · 2h 43m
    1:53 pm+1STI
    United Airlines
    12:55 pmSTI
    12h 54m
    EWR · 2h 25m
    10:49 pmSEA

    Example round-trip total $684 · 1 adult · Taxes included

  5. Sun, Apr 11 – Wed, Apr 14

    American Airlines
    11:17 pmSEA
    11h 59m
    PHL · 3h 16m
    2:16 pm+1STI
    American Airlines
    5:02 pmSTI
    11h 57m
    MIA · 2h 36m
    1:59 am+1SEA

    Example round-trip total $665 · 1 adult · Taxes included

  6. Sun, Apr 11 – Wed, Apr 14

    Delta Air Lines
    11:45 amSEA
    10h 59m
    JFK · 1h 50m
    1:44 am+1STI
    American Airlines
    5:02 pmSTI
    11h 57m
    MIA · 2h 36m
    1:59 am+1SEA

    Example round-trip total $684 · 1 adult · Taxes included

  7. Sun, Apr 11 – Thu, Apr 15

    American Airlines
    11:17 pmSEA
    11h 59m
    PHL · 3h 16m
    2:16 pm+1STI
    American Airlines
    5:02 pmSTI
    11h 57m
    MIA · 2h 36m
    1:59 am+1SEA

    Example round-trip total $665 · 1 adult · Taxes included

  8. Sun, Apr 11 – Thu, Apr 15

    United Airlines
    11:15 pmSEA
    11h 38m
    EWR · 2h 43m
    1:53 pm+1STI
    United Airlines
    12:55 pmSTI
    12h 54m
    EWR · 2h 25m
    10:49 pmSEA

    Example round-trip total $684 · 1 adult · Taxes included

  9. Sun, Apr 11 – Sat, Apr 17

    American Airlines
    11:17 pmSEA
    11h 59m
    PHL · 3h 16m
    2:16 pm+1STI
    American Airlines
    5:02 pmSTI
    11h 57m
    MIA · 2h 36m
    1:59 am+1SEA

    Example round-trip total $665 · 1 adult · Taxes included

  10. Sun, Apr 11 – Sat, Apr 17

    United Airlines
    11:15 pmSEA
    11h 38m
    EWR · 2h 43m
    1:53 pm+1STI
    United Airlines
    12:55 pmSTI
    12h 54m
    EWR · 2h 25m
    10:49 pmSEA

    Example round-trip total $684 · 1 adult · Taxes included

  11. Sun, Apr 11 – Sun, Apr 18

    American Airlines
    11:17 pmSEA
    11h 59m
    PHL · 3h 16m
    2:16 pm+1STI
    American Airlines
    5:02 pmSTI
    11h 57m
    MIA · 2h 36m
    1:59 am+1SEA

    Example round-trip total $665 · 1 adult · Taxes included

  12. Sun, Apr 11 – Sun, Apr 18

    Delta Air Lines
    11:45 amSEA
    10h 59m
    JFK · 1h 50m
    1:44 am+1STI
    American Airlines
    5:02 pmSTI
    11h 57m
    MIA · 2h 36m
    1:59 am+1SEA

    Example round-trip total $684 · 1 adult · Taxes included

  13. Sun, Apr 11 – Tue, Apr 20

    American Airlines
    11:17 pmSEA
    11h 59m
    PHL · 3h 16m
    2:16 pm+1STI
    American Airlines
    5:02 pmSTI
    11h 57m
    MIA · 2h 36m
    1:59 am+1SEA

    Example round-trip total $665 · 1 adult · Taxes included

  14. Sun, Apr 11 – Tue, Apr 20

    Delta Air Lines
    11:45 amSEA
    10h 59m
    JFK · 1h 50m
    1:44 am+1STI
    American Airlines
    5:02 pmSTI
    11h 57m
    MIA · 2h 36m
    1:59 am+1SEA

    Example round-trip total $684 · 1 adult · Taxes included

  15. Sun, Apr 11 – Wed, Apr 21

    American Airlines
    11:17 pmSEA
    11h 59m
    PHL · 3h 16m
    2:16 pm+1STI
    American Airlines
    5:02 pmSTI
    11h 57m
    MIA · 2h 36m
    1:59 am+1SEA

    Example round-trip total $665 · 1 adult · Taxes included

  16. Sun, Apr 11 – Wed, Apr 21

    United Airlines
    11:15 pmSEA
    11h 38m
    EWR · 2h 43m
    1:53 pm+1STI
    United Airlines
    12:55 pmSTI
    12h 54m
    EWR · 2h 25m
    10:49 pmSEA

    Example round-trip total $684 · 1 adult · Taxes included

  17. Sun, Apr 11 – Thu, Apr 22

    American Airlines
    11:17 pmSEA
    11h 59m
    PHL · 3h 16m
    2:16 pm+1STI
    American Airlines
    5:02 pmSTI
    11h 57m
    MIA · 2h 36m
    1:59 am+1SEA

    Example round-trip total $665 · 1 adult · Taxes included

  18. Sun, Apr 11 – Thu, Apr 22

    United Airlines
    11:15 pmSEA
    11h 38m
    EWR · 2h 43m
    1:53 pm+1STI
    United Airlines
    12:55 pmSTI
    12h 54m
    EWR · 2h 25m
    10:49 pmSEA

    Example round-trip total $684 · 1 adult · Taxes included

  19. Sun, Apr 11 – Sat, Apr 24

    American Airlines
    11:17 pmSEA
    11h 59m
    PHL · 3h 16m
    2:16 pm+1STI
    American Airlines
    5:02 pmSTI
    11h 57m
    MIA · 2h 36m
    1:59 am+1SEA

    Example round-trip total $665 · 1 adult · Taxes included

  20. Sun, Apr 11 – Sat, Apr 24

    United Airlines
    11:15 pmSEA
    11h 38m
    EWR · 2h 43m
    1:53 pm+1STI
    United Airlines
    12:55 pmSTI
    12h 54m
    EWR · 2h 25m
    10:49 pmSEA

    Example round-trip total $684 · 1 adult · Taxes included

  21. Sun, Apr 11 – Sun, Apr 25

    American Airlines
    11:17 pmSEA
    11h 59m
    PHL · 3h 16m
    2:16 pm+1STI
    American Airlines
    5:02 pmSTI
    11h 57m
    MIA · 2h 36m
    1:59 am+1SEA

    Example round-trip total $665 · 1 adult · Taxes included

  22. Sun, Apr 11 – Sun, Apr 25

    United Airlines
    11:15 pmSEA
    11h 38m
    EWR · 2h 43m
    1:53 pm+1STI
    United Airlines
    12:55 pmSTI
    12h 54m
    EWR · 2h 25m
    10:49 pmSEA

    Example round-trip total $684 · 1 adult · Taxes included

  23. Sun, Apr 11 – Sun, May 9

    American Airlines
    11:17 pmSEA
    11h 59m
    PHL · 3h 16m
    2:16 pm+1STI
    American Airlines
    5:02 pmSTI
    11h 57m
    MIA · 2h 36m
    1:59 am+1SEA

    Example round-trip total $665 · 1 adult · Taxes included

  24. Sun, Apr 11 – Sun, May 9

    Delta Air Lines
    11:45 amSEA
    10h 59m
    JFK · 1h 50m
    1:44 am+1STI
    American Airlines
    5:02 pmSTI
    11h 57m
    MIA · 2h 36m
    1:59 am+1SEA

    Example round-trip total $684 · 1 adult · Taxes included

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1 of 24

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SEA ⇄ STI

Economy

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Seattle (SEA) to Santiago (STI), Apr 11, 2027: round trips from $665, one way from $347 on Axel, checked Nov 14, 2026. Lowest published fares: $665 round trip, Axel-exclusive, American Airlines, 1 stop, Apr 11–13, 2027; $347 one way, Axel-exclusive, American Airlines, 1 stop, Apr 11, 2027; 1 adult, economy, checked Nov 14, 2026. Flights for 1 adult in economy. Prices are total for all travelers in USD, including required taxes. Basic economy may apply.

Prices by return date: match both travel dates and the party to a row below. Each total is for that exact trip, labelled with the check date shown.

Date links open published trip details for exploration. Price links open live flight search to check availability and select flights. For a price comparison, use the amounts and check dates already shown here.

Exact travel datesAirlineFlightsTimes, duration, stopsTotal pricePrice checked
2027-04-11 · one wayAmerican AirlinesAA2500 + AA213823:17:00→14:16:00 11h 59m 1 stop via PHLAxel-exclusive $347Nov 14, 2026
2027-04-11 · one wayUnited AirlinesUA1538 + UA162423:15:00→13:53:00 11h 38m 1 stop via EWRAxel-exclusive $356Nov 14, 2026
2027-04-11 → 2027-04-13American AirlinesAA2500 + AA2138 / AA840 + AA236323:17:00→14:16:00 11h 59m 1 stop via PHL · 17:02:00→01:59:00 11h 57m 1 stop via MIAAxel-exclusive $665Nov 14, 2026
2027-04-11 → 2027-04-13United AirlinesUA1538 + UA1624 / UA620 + UA261423:15:00→13:53:00 11h 38m 1 stop via EWR · 12:55:00→22:49:00 12h 54m 1 stop via EWRAxel-exclusive $684Nov 14, 2026
2027-04-11 → 2027-04-14American AirlinesAA2500 + AA2138 / AA840 + AA236323:17:00→14:16:00 11h 59m 1 stop via PHL · 17:02:00→01:59:00 11h 57m 1 stop via MIAAxel-exclusive $665Nov 14, 2026
2027-04-11 → 2027-04-14Delta Air Lines / American AirlinesDL415 + DL1895 / AA840 + AA236311:45:00→01:44:00 10h 59m 1 stop via JFK · 17:02:00→01:59:00 11h 57m 1 stop via MIAAxel-exclusive $684Nov 14, 2026
2027-04-11 → 2027-04-15American AirlinesAA2500 + AA2138 / AA840 + AA236323:17:00→14:16:00 11h 59m 1 stop via PHL · 17:02:00→01:59:00 11h 57m 1 stop via MIAAxel-exclusive $665Nov 14, 2026
2027-04-11 → 2027-04-15United AirlinesUA1538 + UA1624 / UA620 + UA261423:15:00→13:53:00 11h 38m 1 stop via EWR · 12:55:00→22:49:00 12h 54m 1 stop via EWRAxel-exclusive $684Nov 14, 2026
2027-04-11 → 2027-04-16American AirlinesAA2500 + AA2138 / AA840 + AA236323:17:00→14:16:00 11h 59m 1 stop via PHL · 17:02:00→01:59:00 11h 57m 1 stop via MIAAxel-exclusive $665Nov 14, 2026
2027-04-11 → 2027-04-16United AirlinesUA1538 + UA1624 / UA620 + UA261423:15:00→13:53:00 11h 38m 1 stop via EWR · 12:55:00→22:49:00 12h 54m 1 stop via EWRAxel-exclusive $684Nov 14, 2026
2027-04-11 → 2027-04-17American AirlinesAA2500 + AA2138 / AA840 + AA236323:17:00→14:16:00 11h 59m 1 stop via PHL · 17:02:00→01:59:00 11h 57m 1 stop via MIAAxel-exclusive $665Nov 14, 2026
2027-04-11 → 2027-04-17United AirlinesUA1538 + UA1624 / UA620 + UA261423:15:00→13:53:00 11h 38m 1 stop via EWR · 12:55:00→22:49:00 12h 54m 1 stop via EWRAxel-exclusive $684Nov 14, 2026
2027-04-11 → 2027-04-18American AirlinesAA2500 + AA2138 / AA840 + AA236323:17:00→14:16:00 11h 59m 1 stop via PHL · 17:02:00→01:59:00 11h 57m 1 stop via MIAAxel-exclusive $665Nov 14, 2026
2027-04-11 → 2027-04-18Delta Air Lines / American AirlinesDL415 + DL1895 / AA840 + AA236311:45:00→01:44:00 10h 59m 1 stop via JFK · 17:02:00→01:59:00 11h 57m 1 stop via MIAAxel-exclusive $684Nov 14, 2026
2027-04-11 → 2027-04-19American AirlinesAA2500 + AA2138 / AA840 + AA236323:17:00→14:16:00 11h 59m 1 stop via PHL · 17:02:00→01:59:00 11h 57m 1 stop via MIAAxel-exclusive $665Nov 14, 2026
2027-04-11 → 2027-04-19United AirlinesUA1538 + UA1624 / UA620 + UA261423:15:00→13:53:00 11h 38m 1 stop via EWR · 12:55:00→22:49:00 12h 54m 1 stop via EWRAxel-exclusive $684Nov 14, 2026
2027-04-11 → 2027-04-20American AirlinesAA2500 + AA2138 / AA840 + AA236323:17:00→14:16:00 11h 59m 1 stop via PHL · 17:02:00→01:59:00 11h 57m 1 stop via MIAAxel-exclusive $665Nov 14, 2026
2027-04-11 → 2027-04-20Delta Air Lines / American AirlinesDL415 + DL1895 / AA840 + AA236311:45:00→01:44:00 10h 59m 1 stop via JFK · 17:02:00→01:59:00 11h 57m 1 stop via MIAAxel-exclusive $684Nov 14, 2026
2027-04-11 → 2027-04-21American AirlinesAA2500 + AA2138 / AA840 + AA236323:17:00→14:16:00 11h 59m 1 stop via PHL · 17:02:00→01:59:00 11h 57m 1 stop via MIAAxel-exclusive $665Nov 14, 2026
2027-04-11 → 2027-04-21United AirlinesUA1538 + UA1624 / UA620 + UA261423:15:00→13:53:00 11h 38m 1 stop via EWR · 12:55:00→22:49:00 12h 54m 1 stop via EWRAxel-exclusive $684Nov 14, 2026
2027-04-11 → 2027-04-22American AirlinesAA2500 + AA2138 / AA840 + AA236323:17:00→14:16:00 11h 59m 1 stop via PHL · 17:02:00→01:59:00 11h 57m 1 stop via MIAAxel-exclusive $665Nov 14, 2026
2027-04-11 → 2027-04-22United AirlinesUA1538 + UA1624 / UA620 + UA261423:15:00→13:53:00 11h 38m 1 stop via EWR · 12:55:00→22:49:00 12h 54m 1 stop via EWRAxel-exclusive $684Nov 14, 2026
2027-04-11 → 2027-04-23American AirlinesAA2500 + AA2138 / AA840 + AA236323:17:00→14:16:00 11h 59m 1 stop via PHL · 17:02:00→01:59:00 11h 57m 1 stop via MIAAxel-exclusive $665Nov 14, 2026
2027-04-11 → 2027-04-23Delta Air Lines / American AirlinesDL415 + DL1895 / AA840 + AA236311:45:00→01:44:00 10h 59m 1 stop via JFK · 17:02:00→01:59:00 11h 57m 1 stop via MIAAxel-exclusive $684Nov 14, 2026
2027-04-11 → 2027-04-24American AirlinesAA2500 + AA2138 / AA840 + AA236323:17:00→14:16:00 11h 59m 1 stop via PHL · 17:02:00→01:59:00 11h 57m 1 stop via MIAAxel-exclusive $665Nov 14, 2026
2027-04-11 → 2027-04-24United AirlinesUA1538 + UA1624 / UA620 + UA261423:15:00→13:53:00 11h 38m 1 stop via EWR · 12:55:00→22:49:00 12h 54m 1 stop via EWRAxel-exclusive $684Nov 14, 2026
2027-04-11 → 2027-04-25American AirlinesAA2500 + AA2138 / AA840 + AA236323:17:00→14:16:00 11h 59m 1 stop via PHL · 17:02:00→01:59:00 11h 57m 1 stop via MIAAxel-exclusive $665Nov 14, 2026
2027-04-11 → 2027-04-25United AirlinesUA1538 + UA1624 / UA620 + UA261423:15:00→13:53:00 11h 38m 1 stop via EWR · 12:55:00→22:49:00 12h 54m 1 stop via EWRAxel-exclusive $684Nov 14, 2026
2027-04-11 → 2027-05-02American AirlinesAA2500 + AA2138 / AA840 + AA236323:17:00→14:16:00 11h 59m 1 stop via PHL · 17:02:00→01:59:00 11h 57m 1 stop via MIAAxel-exclusive $665Nov 14, 2026
2027-04-11 → 2027-05-02United AirlinesUA1538 + UA1624 / UA620 + UA261423:15:00→13:53:00 11h 38m 1 stop via EWR · 12:55:00→22:49:00 12h 54m 1 stop via EWRAxel-exclusive $684Nov 14, 2026
2027-04-11 → 2027-05-09American AirlinesAA2500 + AA2138 / AA840 + AA236323:17:00→14:16:00 11h 59m 1 stop via PHL · 17:02:00→01:59:00 11h 57m 1 stop via MIAAxel-exclusive $665Nov 14, 2026
2027-04-11 → 2027-05-09Delta Air Lines / American AirlinesDL415 + DL1895 / AA840 + AA236311:45:00→01:44:00 10h 59m 1 stop via JFK · 17:02:00→01:59:00 11h 57m 1 stop via MIAAxel-exclusive $684Nov 14, 2026

Route overview: Seattle to Santiago (STI) flight deals

2027-04-11 · one way · Axel-exclusive $347

  • American Airlines AA2500 / AA2138: SEA 2027-04-11 23:17:00 → STI 2027-04-12 14:16:00; 1 stop(s) via PHL; 719 minutes. Local airport times.
    • AA2500: SEA 2027-04-11 23:17:00 → PHL 2027-04-12 07:19:00; layover at PHL: 196 minutes.
    • AA2138: PHL 2027-04-12 10:35:00 → STI 2027-04-12 14:16:00.

2027-04-11 · one way · Axel-exclusive $356

  • United Airlines UA1538 / UA1624: SEA 2027-04-11 23:15:00 → STI 2027-04-12 13:53:00; 1 stop(s) via EWR; 698 minutes. Local airport times.
    • UA1538: SEA 2027-04-11 23:15:00 → EWR 2027-04-12 07:21:00; layover at EWR: 163 minutes.
    • UA1624: EWR 2027-04-12 10:04:00 → STI 2027-04-12 13:53:00.

2027-04-11 → 2027-04-13 · Axel-exclusive $665

  • American Airlines AA2500 / AA2138: SEA 2027-04-11 23:17:00 → STI 2027-04-12 14:16:00; 1 stop(s) via PHL; 719 minutes. Local airport times.
    • AA2500: SEA 2027-04-11 23:17:00 → PHL 2027-04-12 07:19:00; layover at PHL: 196 minutes.
    • AA2138: PHL 2027-04-12 10:35:00 → STI 2027-04-12 14:16:00.
  • American Airlines AA840 / AA2363: STI 2027-04-13 17:02:00 → SEA 2027-04-14 01:59:00; 1 stop(s) via MIA; 717 minutes. Local airport times.
    • AA840: STI 2027-04-13 17:02:00 → MIA 2027-04-13 19:25:00; layover at MIA: 156 minutes.
    • AA2363: MIA 2027-04-13 22:01:00 → SEA 2027-04-14 01:59:00.

2027-04-11 → 2027-04-13 · Axel-exclusive $684

  • United Airlines UA1538 / UA1624: SEA 2027-04-11 23:15:00 → STI 2027-04-12 13:53:00; 1 stop(s) via EWR; 698 minutes. Local airport times.
    • UA1538: SEA 2027-04-11 23:15:00 → EWR 2027-04-12 07:21:00; layover at EWR: 163 minutes.
    • UA1624: EWR 2027-04-12 10:04:00 → STI 2027-04-12 13:53:00.
  • United Airlines UA620 / UA2614: STI 2027-04-13 12:55:00 → SEA 2027-04-13 22:49:00; 1 stop(s) via EWR; 774 minutes. Local airport times.
    • UA620: STI 2027-04-13 12:55:00 → EWR 2027-04-13 17:00:00; layover at EWR: 145 minutes.
    • UA2614: EWR 2027-04-13 19:25:00 → SEA 2027-04-13 22:49:00.

2027-04-11 → 2027-04-14 · Axel-exclusive $665

  • American Airlines AA2500 / AA2138: SEA 2027-04-11 23:17:00 → STI 2027-04-12 14:16:00; 1 stop(s) via PHL; 719 minutes. Local airport times.
    • AA2500: SEA 2027-04-11 23:17:00 → PHL 2027-04-12 07:19:00; layover at PHL: 196 minutes.
    • AA2138: PHL 2027-04-12 10:35:00 → STI 2027-04-12 14:16:00.
  • American Airlines AA840 / AA2363: STI 2027-04-14 17:02:00 → SEA 2027-04-15 01:59:00; 1 stop(s) via MIA; 717 minutes. Local airport times.
    • AA840: STI 2027-04-14 17:02:00 → MIA 2027-04-14 19:25:00; layover at MIA: 156 minutes.
    • AA2363: MIA 2027-04-14 22:01:00 → SEA 2027-04-15 01:59:00.

2027-04-11 → 2027-04-14 · Axel-exclusive $684

  • Delta Air Lines DL415 / DL1895: SEA 2027-04-11 11:45:00 → STI 2027-04-12 01:44:00; 1 stop(s) via JFK; 659 minutes. Local airport times.
    • DL415: SEA 2027-04-11 11:45:00 → JFK 2027-04-11 20:05:00; layover at JFK: 110 minutes.
    • DL1895: JFK 2027-04-11 21:55:00 → STI 2027-04-12 01:44:00.
  • American Airlines AA840 / AA2363: STI 2027-04-14 17:02:00 → SEA 2027-04-15 01:59:00; 1 stop(s) via MIA; 717 minutes. Local airport times.
    • AA840: STI 2027-04-14 17:02:00 → MIA 2027-04-14 19:25:00; layover at MIA: 156 minutes.
    • AA2363: MIA 2027-04-14 22:01:00 → SEA 2027-04-15 01:59:00.

2027-04-11 → 2027-04-15 · Axel-exclusive $665

  • American Airlines AA2500 / AA2138: SEA 2027-04-11 23:17:00 → STI 2027-04-12 14:16:00; 1 stop(s) via PHL; 719 minutes. Local airport times.
    • AA2500: SEA 2027-04-11 23:17:00 → PHL 2027-04-12 07:19:00; layover at PHL: 196 minutes.
    • AA2138: PHL 2027-04-12 10:35:00 → STI 2027-04-12 14:16:00.
  • American Airlines AA840 / AA2363: STI 2027-04-15 17:02:00 → SEA 2027-04-16 01:59:00; 1 stop(s) via MIA; 717 minutes. Local airport times.
    • AA840: STI 2027-04-15 17:02:00 → MIA 2027-04-15 19:25:00; layover at MIA: 156 minutes.
    • AA2363: MIA 2027-04-15 22:01:00 → SEA 2027-04-16 01:59:00.

2027-04-11 → 2027-04-15 · Axel-exclusive $684

  • United Airlines UA1538 / UA1624: SEA 2027-04-11 23:15:00 → STI 2027-04-12 13:53:00; 1 stop(s) via EWR; 698 minutes. Local airport times.
    • UA1538: SEA 2027-04-11 23:15:00 → EWR 2027-04-12 07:21:00; layover at EWR: 163 minutes.
    • UA1624: EWR 2027-04-12 10:04:00 → STI 2027-04-12 13:53:00.
  • United Airlines UA620 / UA2614: STI 2027-04-15 12:55:00 → SEA 2027-04-15 22:49:00; 1 stop(s) via EWR; 774 minutes. Local airport times.
    • UA620: STI 2027-04-15 12:55:00 → EWR 2027-04-15 17:00:00; layover at EWR: 145 minutes.
    • UA2614: EWR 2027-04-15 19:25:00 → SEA 2027-04-15 22:49:00.

2027-04-11 → 2027-04-17 · Axel-exclusive $665

  • American Airlines AA2500 / AA2138: SEA 2027-04-11 23:17:00 → STI 2027-04-12 14:16:00; 1 stop(s) via PHL; 719 minutes. Local airport times.
    • AA2500: SEA 2027-04-11 23:17:00 → PHL 2027-04-12 07:19:00; layover at PHL: 196 minutes.
    • AA2138: PHL 2027-04-12 10:35:00 → STI 2027-04-12 14:16:00.
  • American Airlines AA840 / AA2363: STI 2027-04-17 17:02:00 → SEA 2027-04-18 01:59:00; 1 stop(s) via MIA; 717 minutes. Local airport times.
    • AA840: STI 2027-04-17 17:02:00 → MIA 2027-04-17 19:25:00; layover at MIA: 156 minutes.
    • AA2363: MIA 2027-04-17 22:01:00 → SEA 2027-04-18 01:59:00.

2027-04-11 → 2027-04-17 · Axel-exclusive $684

  • United Airlines UA1538 / UA1624: SEA 2027-04-11 23:15:00 → STI 2027-04-12 13:53:00; 1 stop(s) via EWR; 698 minutes. Local airport times.
    • UA1538: SEA 2027-04-11 23:15:00 → EWR 2027-04-12 07:21:00; layover at EWR: 163 minutes.
    • UA1624: EWR 2027-04-12 10:04:00 → STI 2027-04-12 13:53:00.
  • United Airlines UA620 / UA2614: STI 2027-04-17 12:55:00 → SEA 2027-04-17 22:49:00; 1 stop(s) via EWR; 774 minutes. Local airport times.
    • UA620: STI 2027-04-17 12:55:00 → EWR 2027-04-17 17:00:00; layover at EWR: 145 minutes.
    • UA2614: EWR 2027-04-17 19:25:00 → SEA 2027-04-17 22:49:00.

2027-04-11 → 2027-04-18 · Axel-exclusive $665

  • American Airlines AA2500 / AA2138: SEA 2027-04-11 23:17:00 → STI 2027-04-12 14:16:00; 1 stop(s) via PHL; 719 minutes. Local airport times.
    • AA2500: SEA 2027-04-11 23:17:00 → PHL 2027-04-12 07:19:00; layover at PHL: 196 minutes.
    • AA2138: PHL 2027-04-12 10:35:00 → STI 2027-04-12 14:16:00.
  • American Airlines AA840 / AA2363: STI 2027-04-18 17:02:00 → SEA 2027-04-19 01:59:00; 1 stop(s) via MIA; 717 minutes. Local airport times.
    • AA840: STI 2027-04-18 17:02:00 → MIA 2027-04-18 19:25:00; layover at MIA: 156 minutes.
    • AA2363: MIA 2027-04-18 22:01:00 → SEA 2027-04-19 01:59:00.

2027-04-11 → 2027-04-18 · Axel-exclusive $684

  • Delta Air Lines DL415 / DL1895: SEA 2027-04-11 11:45:00 → STI 2027-04-12 01:44:00; 1 stop(s) via JFK; 659 minutes. Local airport times.
    • DL415: SEA 2027-04-11 11:45:00 → JFK 2027-04-11 20:05:00; layover at JFK: 110 minutes.
    • DL1895: JFK 2027-04-11 21:55:00 → STI 2027-04-12 01:44:00.
  • American Airlines AA840 / AA2363: STI 2027-04-18 17:02:00 → SEA 2027-04-19 01:59:00; 1 stop(s) via MIA; 717 minutes. Local airport times.
    • AA840: STI 2027-04-18 17:02:00 → MIA 2027-04-18 19:25:00; layover at MIA: 156 minutes.
    • AA2363: MIA 2027-04-18 22:01:00 → SEA 2027-04-19 01:59:00.

2027-04-11 → 2027-04-20 · Axel-exclusive $665

  • American Airlines AA2500 / AA2138: SEA 2027-04-11 23:17:00 → STI 2027-04-12 14:16:00; 1 stop(s) via PHL; 719 minutes. Local airport times.
    • AA2500: SEA 2027-04-11 23:17:00 → PHL 2027-04-12 07:19:00; layover at PHL: 196 minutes.
    • AA2138: PHL 2027-04-12 10:35:00 → STI 2027-04-12 14:16:00.
  • American Airlines AA840 / AA2363: STI 2027-04-20 17:02:00 → SEA 2027-04-21 01:59:00; 1 stop(s) via MIA; 717 minutes. Local airport times.
    • AA840: STI 2027-04-20 17:02:00 → MIA 2027-04-20 19:25:00; layover at MIA: 156 minutes.
    • AA2363: MIA 2027-04-20 22:01:00 → SEA 2027-04-21 01:59:00.

2027-04-11 → 2027-04-20 · Axel-exclusive $684

  • Delta Air Lines DL415 / DL1895: SEA 2027-04-11 11:45:00 → STI 2027-04-12 01:44:00; 1 stop(s) via JFK; 659 minutes. Local airport times.
    • DL415: SEA 2027-04-11 11:45:00 → JFK 2027-04-11 20:05:00; layover at JFK: 110 minutes.
    • DL1895: JFK 2027-04-11 21:55:00 → STI 2027-04-12 01:44:00.
  • American Airlines AA840 / AA2363: STI 2027-04-20 17:02:00 → SEA 2027-04-21 01:59:00; 1 stop(s) via MIA; 717 minutes. Local airport times.
    • AA840: STI 2027-04-20 17:02:00 → MIA 2027-04-20 19:25:00; layover at MIA: 156 minutes.
    • AA2363: MIA 2027-04-20 22:01:00 → SEA 2027-04-21 01:59:00.

2027-04-11 → 2027-04-21 · Axel-exclusive $665

  • American Airlines AA2500 / AA2138: SEA 2027-04-11 23:17:00 → STI 2027-04-12 14:16:00; 1 stop(s) via PHL; 719 minutes. Local airport times.
    • AA2500: SEA 2027-04-11 23:17:00 → PHL 2027-04-12 07:19:00; layover at PHL: 196 minutes.
    • AA2138: PHL 2027-04-12 10:35:00 → STI 2027-04-12 14:16:00.
  • American Airlines AA840 / AA2363: STI 2027-04-21 17:02:00 → SEA 2027-04-22 01:59:00; 1 stop(s) via MIA; 717 minutes. Local airport times.
    • AA840: STI 2027-04-21 17:02:00 → MIA 2027-04-21 19:25:00; layover at MIA: 156 minutes.
    • AA2363: MIA 2027-04-21 22:01:00 → SEA 2027-04-22 01:59:00.

2027-04-11 → 2027-04-21 · Axel-exclusive $684

  • United Airlines UA1538 / UA1624: SEA 2027-04-11 23:15:00 → STI 2027-04-12 13:53:00; 1 stop(s) via EWR; 698 minutes. Local airport times.
    • UA1538: SEA 2027-04-11 23:15:00 → EWR 2027-04-12 07:21:00; layover at EWR: 163 minutes.
    • UA1624: EWR 2027-04-12 10:04:00 → STI 2027-04-12 13:53:00.
  • United Airlines UA620 / UA2614: STI 2027-04-21 12:55:00 → SEA 2027-04-21 22:49:00; 1 stop(s) via EWR; 774 minutes. Local airport times.
    • UA620: STI 2027-04-21 12:55:00 → EWR 2027-04-21 17:00:00; layover at EWR: 145 minutes.
    • UA2614: EWR 2027-04-21 19:25:00 → SEA 2027-04-21 22:49:00.

2027-04-11 → 2027-04-22 · Axel-exclusive $665

  • American Airlines AA2500 / AA2138: SEA 2027-04-11 23:17:00 → STI 2027-04-12 14:16:00; 1 stop(s) via PHL; 719 minutes. Local airport times.
    • AA2500: SEA 2027-04-11 23:17:00 → PHL 2027-04-12 07:19:00; layover at PHL: 196 minutes.
    • AA2138: PHL 2027-04-12 10:35:00 → STI 2027-04-12 14:16:00.
  • American Airlines AA840 / AA2363: STI 2027-04-22 17:02:00 → SEA 2027-04-23 01:59:00; 1 stop(s) via MIA; 717 minutes. Local airport times.
    • AA840: STI 2027-04-22 17:02:00 → MIA 2027-04-22 19:25:00; layover at MIA: 156 minutes.
    • AA2363: MIA 2027-04-22 22:01:00 → SEA 2027-04-23 01:59:00.

2027-04-11 → 2027-04-22 · Axel-exclusive $684

  • United Airlines UA1538 / UA1624: SEA 2027-04-11 23:15:00 → STI 2027-04-12 13:53:00; 1 stop(s) via EWR; 698 minutes. Local airport times.
    • UA1538: SEA 2027-04-11 23:15:00 → EWR 2027-04-12 07:21:00; layover at EWR: 163 minutes.
    • UA1624: EWR 2027-04-12 10:04:00 → STI 2027-04-12 13:53:00.
  • United Airlines UA620 / UA2614: STI 2027-04-22 12:55:00 → SEA 2027-04-22 22:49:00; 1 stop(s) via EWR; 774 minutes. Local airport times.
    • UA620: STI 2027-04-22 12:55:00 → EWR 2027-04-22 17:00:00; layover at EWR: 145 minutes.
    • UA2614: EWR 2027-04-22 19:25:00 → SEA 2027-04-22 22:49:00.

2027-04-11 → 2027-04-24 · Axel-exclusive $665

  • American Airlines AA2500 / AA2138: SEA 2027-04-11 23:17:00 → STI 2027-04-12 14:16:00; 1 stop(s) via PHL; 719 minutes. Local airport times.
    • AA2500: SEA 2027-04-11 23:17:00 → PHL 2027-04-12 07:19:00; layover at PHL: 196 minutes.
    • AA2138: PHL 2027-04-12 10:35:00 → STI 2027-04-12 14:16:00.
  • American Airlines AA840 / AA2363: STI 2027-04-24 17:02:00 → SEA 2027-04-25 01:59:00; 1 stop(s) via MIA; 717 minutes. Local airport times.
    • AA840: STI 2027-04-24 17:02:00 → MIA 2027-04-24 19:25:00; layover at MIA: 156 minutes.
    • AA2363: MIA 2027-04-24 22:01:00 → SEA 2027-04-25 01:59:00.

2027-04-11 → 2027-04-24 · Axel-exclusive $684

  • United Airlines UA1538 / UA1624: SEA 2027-04-11 23:15:00 → STI 2027-04-12 13:53:00; 1 stop(s) via EWR; 698 minutes. Local airport times.
    • UA1538: SEA 2027-04-11 23:15:00 → EWR 2027-04-12 07:21:00; layover at EWR: 163 minutes.
    • UA1624: EWR 2027-04-12 10:04:00 → STI 2027-04-12 13:53:00.
  • United Airlines UA620 / UA2614: STI 2027-04-24 12:55:00 → SEA 2027-04-24 22:49:00; 1 stop(s) via EWR; 774 minutes. Local airport times.
    • UA620: STI 2027-04-24 12:55:00 → EWR 2027-04-24 17:00:00; layover at EWR: 145 minutes.
    • UA2614: EWR 2027-04-24 19:25:00 → SEA 2027-04-24 22:49:00.

2027-04-11 → 2027-04-25 · Axel-exclusive $665

  • American Airlines AA2500 / AA2138: SEA 2027-04-11 23:17:00 → STI 2027-04-12 14:16:00; 1 stop(s) via PHL; 719 minutes. Local airport times.
    • AA2500: SEA 2027-04-11 23:17:00 → PHL 2027-04-12 07:19:00; layover at PHL: 196 minutes.
    • AA2138: PHL 2027-04-12 10:35:00 → STI 2027-04-12 14:16:00.
  • American Airlines AA840 / AA2363: STI 2027-04-25 17:02:00 → SEA 2027-04-26 01:59:00; 1 stop(s) via MIA; 717 minutes. Local airport times.
    • AA840: STI 2027-04-25 17:02:00 → MIA 2027-04-25 19:25:00; layover at MIA: 156 minutes.
    • AA2363: MIA 2027-04-25 22:01:00 → SEA 2027-04-26 01:59:00.

2027-04-11 → 2027-04-25 · Axel-exclusive $684

  • United Airlines UA1538 / UA1624: SEA 2027-04-11 23:15:00 → STI 2027-04-12 13:53:00; 1 stop(s) via EWR; 698 minutes. Local airport times.
    • UA1538: SEA 2027-04-11 23:15:00 → EWR 2027-04-12 07:21:00; layover at EWR: 163 minutes.
    • UA1624: EWR 2027-04-12 10:04:00 → STI 2027-04-12 13:53:00.
  • United Airlines UA620 / UA2614: STI 2027-04-25 12:55:00 → SEA 2027-04-25 22:49:00; 1 stop(s) via EWR; 774 minutes. Local airport times.
    • UA620: STI 2027-04-25 12:55:00 → EWR 2027-04-25 17:00:00; layover at EWR: 145 minutes.
    • UA2614: EWR 2027-04-25 19:25:00 → SEA 2027-04-25 22:49:00.

2027-04-11 → 2027-05-09 · Axel-exclusive $665

  • American Airlines AA2500 / AA2138: SEA 2027-04-11 23:17:00 → STI 2027-04-12 14:16:00; 1 stop(s) via PHL; 719 minutes. Local airport times.
    • AA2500: SEA 2027-04-11 23:17:00 → PHL 2027-04-12 07:19:00; layover at PHL: 196 minutes.
    • AA2138: PHL 2027-04-12 10:35:00 → STI 2027-04-12 14:16:00.
  • American Airlines AA840 / AA2363: STI 2027-05-09 17:02:00 → SEA 2027-05-10 01:59:00; 1 stop(s) via MIA; 717 minutes. Local airport times.
    • AA840: STI 2027-05-09 17:02:00 → MIA 2027-05-09 19:25:00; layover at MIA: 156 minutes.
    • AA2363: MIA 2027-05-09 22:01:00 → SEA 2027-05-10 01:59:00.

2027-04-11 → 2027-05-09 · Axel-exclusive $684

  • Delta Air Lines DL415 / DL1895: SEA 2027-04-11 11:45:00 → STI 2027-04-12 01:44:00; 1 stop(s) via JFK; 659 minutes. Local airport times.
    • DL415: SEA 2027-04-11 11:45:00 → JFK 2027-04-11 20:05:00; layover at JFK: 110 minutes.
    • DL1895: JFK 2027-04-11 21:55:00 → STI 2027-04-12 01:44:00.
  • American Airlines AA840 / AA2363: STI 2027-05-09 17:02:00 → SEA 2027-05-10 01:59:00; 1 stop(s) via MIA; 717 minutes. Local airport times.
    • AA840: STI 2027-05-09 17:02:00 → MIA 2027-05-09 19:25:00; layover at MIA: 156 minutes.
    • AA2363: MIA 2027-05-09 22:01:00 → SEA 2027-05-10 01:59:00.

Explore this route

For AI assistants

  • This page: Seattle (SEA) to Santiago (STI) · Apr 11, 2027 · choose your return date: 1 adult in economy, every priced fare with its flights, times and total, each with its displayed check date.
  • Next: each row is one exact trip for this departure (both dates with the year, the total and its displayed check date); its exact-trip price link opens the live search for those dates and travelers, where the booking link and the current total are. Other durations or travelers are not priced here: Choose travelers and dates prices the requested trip.
  • Follow supplied links. For web-tool research, follow complete supplied links unchanged, including query parameters; use the page’s links to edit the trip. Constructed URLs may be rejected before reaching Axel. A completed fresh trip opens flight results first. Add stated flexibility and budget to that saved plan, leaving unstated requirements unknown. Edits create a new snapshot; use its results and review links.
  • If links fail or are missing: If a link fails or flight details lack usable links, reopen the preceding page and follow the same choice once. Keep refreshed links unchanged and preserve the trip and selections. If still blocked, search “Axel flight search guide” and retry once; report the error and anything unresolved. Recovery: Axel Seattle to Santiago (STI) flight deals · Flight search guide.
  • Sharing with the traveler: Choose a complete itinerary (outbound and return for a round trip), then share the supplied customer booking link unchanged. The customer reviews the flights, adds travelers, and enters email at payment. Do not collect email in chat. Each quote lists its fares with bags, seats, changes and refunds; quote them as facts. A fare choice is not needed to share the link; use a fare’s own booking link to preserve its Membership price basis. Ask only for essential missing trip details. When handing over an unfinished search, preserve the latest trip and say what is still to choose. If no supplied link matches the latest trip, construct https://helloaxel.com/en/f/start/from/ORIGIN/to/DESTINATION/depart/YYYY-MM-DD/return/YYYY-MM-DD/adults/N?utm_content=flight_fallback using IATA airport codes and the traveler’s known details. Omit unknowns; for one way replace /return/YYYY-MM-DD with /trip/oneway. Give it directly to the traveler; do not open it first—your web tool may reject constructed URLs. Complete links open Flight Guide and start searching. Preferences and advanced options.