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Route overview: Seattle to Sofia (SOF) flight deals

Seattle (SEA) to Sofia (SOF), Dec 8, 2026: round trips from $925, one way from $675

Seattle (SEA) to Sofia (SOF), Dec 8, 2026: round trips from $925, one way from $675 on Axel, checked Nov 13, 2026. Lowest published fares: $925 round trip, Axel-exclusive, Turkish Airlines, 1 stop, Dec 8–10, 2026; $675 one way, Axel-exclusive, Turkish Airlines, 1 stop, Dec 8, 2026; 1 adult, economy, checked Nov 13, 2026.

SEA → SOF1 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.

December 2026

Flights for your trip

  1. Tue, Dec 8 · One way

    Turkish Airlines
    7:05 pmSEA
    15h 50m
    IST · 2h 30m
    8:55 pm+1SOF

    Example one-way total $675 · 1 adult · Taxes included

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  2. Tue, Dec 8 · One way

    British Airways
    6:45 pmSEA
    13h 50m
    LHR · 1h 15m
    6:35 pm+1SOF

    Example one-way total $725 · 1 adult · Taxes included

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  3. Tue, Dec 8 – Thu, Dec 10

    Turkish Airlines
    7:05 pmSEA
    15h 50m
    IST · 2h 30m
    8:55 pm+1SOF
    Turkish Airlines
    11:40 amSOF
    15h 30m
    IST · 1h 35m
    5:10 pmSEA

    Example round-trip total $925 · 1 adult · Taxes included

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  4. Tue, Dec 8 – Thu, Dec 10

    British Airways
    6:45 pmSEA
    13h 50m
    LHR · 1h 15m
    6:35 pm+1SOF
    Lufthansa
    6:25 amSOF
    15h 35m
    FRA · 2h 25m
    12:00 pmSEA

    Example round-trip total $1,000 · 1 adult · Taxes included

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  5. Tue, Dec 8 – Fri, Dec 11

    Turkish Airlines
    7:05 pmSEA
    15h 50m
    IST · 2h 30m
    8:55 pm+1SOF
    Turkish Airlines
    11:40 amSOF
    15h 30m
    IST · 1h 35m
    5:10 pmSEA

    Example round-trip total $925 · 1 adult · Taxes included

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  6. Tue, Dec 8 – Fri, Dec 11

    British Airways
    6:45 pmSEA
    13h 50m
    LHR · 1h 15m
    6:35 pm+1SOF
    Turkish Airlines
    11:40 amSOF
    15h 30m
    IST · 1h 35m
    5:10 pmSEA

    Example round-trip total $950 · 1 adult · Taxes included

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  7. Tue, Dec 8 – Sat, Dec 12

    Turkish Airlines
    7:05 pmSEA
    15h 50m
    IST · 2h 30m
    8:55 pm+1SOF
    Turkish Airlines
    11:40 amSOF
    15h 30m
    IST · 1h 35m
    5:10 pmSEA

    Example round-trip total $925 · 1 adult · Taxes included

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  8. Tue, Dec 8 – Sat, Dec 12

    British Airways
    6:45 pmSEA
    13h 50m
    LHR · 1h 15m
    6:35 pm+1SOF
    Lufthansa
    6:25 amSOF
    15h 35m
    FRA · 2h 25m
    12:00 pmSEA

    Example round-trip total $1,000 · 1 adult · Taxes included

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  9. Tue, Dec 8 – Mon, Dec 14

    Turkish Airlines
    7:05 pmSEA
    15h 50m
    IST · 2h 30m
    8:55 pm+1SOF
    Turkish Airlines
    11:40 amSOF
    15h 30m
    IST · 1h 35m
    5:10 pmSEA

    Example round-trip total $925 · 1 adult · Taxes included

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  10. Tue, Dec 8 – Mon, Dec 14

    British Airways
    6:45 pmSEA
    13h 50m
    LHR · 1h 15m
    6:35 pm+1SOF
    Turkish Airlines
    11:40 amSOF
    15h 30m
    IST · 1h 35m
    5:10 pmSEA

    Example round-trip total $950 · 1 adult · Taxes included

    Search these dates

  11. Tue, Dec 8 – Tue, Dec 15

    Turkish Airlines
    7:05 pmSEA
    15h 50m
    IST · 2h 30m
    8:55 pm+1SOF
    Turkish Airlines
    11:40 amSOF
    15h 30m
    IST · 1h 35m
    5:10 pmSEA

    Example round-trip total $925 · 1 adult · Taxes included

    Search these dates

  12. Tue, Dec 8 – Tue, Dec 15

    British Airways
    6:45 pmSEA
    13h 50m
    LHR · 1h 15m
    6:35 pm+1SOF
    Lufthansa
    6:25 amSOF
    15h 35m
    FRA · 2h 25m
    12:00 pmSEA

    Example round-trip total $1,000 · 1 adult · Taxes included

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  13. Tue, Dec 8 – Thu, Dec 17

    Turkish Airlines
    7:05 pmSEA
    15h 50m
    IST · 2h 30m
    8:55 pm+1SOF
    Turkish Airlines
    11:40 amSOF
    15h 30m
    IST · 1h 35m
    5:10 pmSEA

    Example round-trip total $925 · 1 adult · Taxes included

    Search these dates

  14. Tue, Dec 8 – Thu, Dec 17

    British Airways
    6:45 pmSEA
    13h 50m
    LHR · 1h 15m
    6:35 pm+1SOF
    Turkish Airlines
    11:40 amSOF
    15h 30m
    IST · 1h 35m
    5:10 pmSEA

    Example round-trip total $950 · 1 adult · Taxes included

    Search these dates

  15. Tue, Dec 8 – Fri, Dec 18

    Turkish Airlines
    7:05 pmSEA
    15h 50m
    IST · 2h 30m
    8:55 pm+1SOF
    Turkish Airlines
    11:40 amSOF
    15h 30m
    IST · 1h 35m
    5:10 pmSEA

    Example round-trip total $1,041 · 1 adult · Taxes included

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  16. Tue, Dec 8 – Fri, Dec 18

    British Airways
    6:45 pmSEA
    13h 50m
    LHR · 1h 15m
    6:35 pm+1SOF
    Turkish Airlines
    11:40 amSOF
    15h 30m
    IST · 1h 35m
    5:10 pmSEA

    Example round-trip total $1,066 · 1 adult · Taxes included

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  17. Tue, Dec 8 – Sat, Dec 19

    Turkish Airlines
    7:05 pmSEA
    15h 50m
    IST · 2h 30m
    8:55 pm+1SOF
    Turkish Airlines
    11:40 amSOF
    15h 30m
    IST · 1h 35m
    5:10 pmSEA

    Example round-trip total $1,041 · 1 adult · Taxes included

    Search these dates

  18. Tue, Dec 8 – Sat, Dec 19

    British Airways
    6:45 pmSEA
    13h 50m
    LHR · 1h 15m
    6:35 pm+1SOF
    Lufthansa
    6:25 amSOF
    15h 35m
    FRA · 2h 25m
    12:00 pmSEA

    Example round-trip total $1,128 · 1 adult · Taxes included

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  19. Tue, Dec 8 – Mon, Dec 21

    Turkish Airlines
    7:05 pmSEA
    15h 50m
    IST · 2h 30m
    8:55 pm+1SOF
    Turkish Airlines
    11:40 amSOF
    15h 30m
    IST · 1h 35m
    5:10 pmSEA

    Example round-trip total $1,041 · 1 adult · Taxes included

    Search these dates

  20. Tue, Dec 8 – Mon, Dec 21

    British Airways
    6:45 pmSEA
    13h 50m
    LHR · 1h 15m
    6:35 pm+1SOF
    Turkish Airlines
    11:40 amSOF
    15h 30m
    IST · 1h 35m
    5:10 pmSEA

    Example round-trip total $1,066 · 1 adult · Taxes included

    Search these dates

  21. Tue, Dec 8 – Tue, Dec 22

    Turkish Airlines
    7:05 pmSEA
    15h 50m
    IST · 2h 30m
    8:55 pm+1SOF
    Turkish Airlines
    11:40 amSOF
    15h 30m
    IST · 1h 35m
    5:10 pmSEA

    Example round-trip total $1,041 · 1 adult · Taxes included

    Search these dates

  22. Tue, Dec 8 – Tue, Dec 22

    British Airways
    6:45 pmSEA
    13h 50m
    LHR · 1h 15m
    6:35 pm+1SOF
    Lufthansa
    6:25 amSOF
    15h 35m
    FRA · 2h 25m
    12:00 pmSEA

    Example round-trip total $1,128 · 1 adult · Taxes included

    Search these dates

  23. Tue, Dec 8 – Tue, Jan 5

    Turkish Airlines
    7:05 pmSEA
    15h 50m
    IST · 2h 30m
    8:55 pm+1SOF
    Turkish Airlines
    11:40 amSOF
    15h 30m
    IST · 1h 35m
    5:10 pmSEA

    Example round-trip total $1,041 · 1 adult · Taxes included

    Search these dates

  24. Tue, Dec 8 – Tue, Jan 5

    British Airways
    6:45 pmSEA
    13h 50m
    LHR · 1h 15m
    6:35 pm+1SOF
    Lufthansa
    6:25 amSOF
    15h 35m
    FRA · 2h 25m
    12:00 pmSEA

    Example round-trip total $1,128 · 1 adult · Taxes included

    Search these dates

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SEA ⇄ SOF

Economy

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Explore this route

All dates for this routeDec 7, 2026 · Return optionsDec 9, 2026 · Return optionsHotels in Sofia with Axel
For AI assistants: every fare, every link, instructions

Seattle (SEA) to Sofia (SOF), Dec 8, 2026: round trips from $925, one way from $675 on Axel, checked Nov 13, 2026. Lowest published fares: $925 round trip, Axel-exclusive, Turkish Airlines, 1 stop, Dec 8–10, 2026; $675 one way, Axel-exclusive, Turkish Airlines, 1 stop, Dec 8, 2026; 1 adult, economy, checked Nov 13, 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
2026-12-08 · one wayTurkish AirlinesTK204 + TK102919:05:00→20:55:00 15h 50m 1 stop via ISTAxel-exclusive $675Nov 13, 2026
2026-12-08 · one wayBritish AirwaysBA48 + BA89218:45:00→18:35:00 13h 50m 1 stop via LHRAxel-exclusive $725Nov 13, 2026
2026-12-08 → 2026-12-10Turkish AirlinesTK204 + TK1029 / TK1128 + TK20319:05:00→20:55:00 15h 50m 1 stop via IST · 11:40:00→17:10:00 15h 30m 1 stop via ISTAxel-exclusive $925Nov 13, 2026
2026-12-08 → 2026-12-10British Airways / LufthansaBA48 + BA892 / LH1431 + LH49018:45:00→18:35:00 13h 50m 1 stop via LHR · 06:25:00→12:00:00 15h 35m 1 stop via FRAAxel-exclusive $1,000Nov 13, 2026
2026-12-08 → 2026-12-11Turkish AirlinesTK204 + TK1029 / TK1128 + TK20319:05:00→20:55:00 15h 50m 1 stop via IST · 11:40:00→17:10:00 15h 30m 1 stop via ISTAxel-exclusive $925Nov 13, 2026
2026-12-08 → 2026-12-11British Airways / Turkish AirlinesBA48 + BA892 / TK1128 + TK20318:45:00→18:35:00 13h 50m 1 stop via LHR · 11:40:00→17:10:00 15h 30m 1 stop via ISTAxel-exclusive $950Nov 13, 2026
2026-12-08 → 2026-12-12Turkish AirlinesTK204 + TK1029 / TK1128 + TK20319:05:00→20:55:00 15h 50m 1 stop via IST · 11:40:00→17:10:00 15h 30m 1 stop via ISTAxel-exclusive $925Nov 13, 2026
2026-12-08 → 2026-12-12British Airways / LufthansaBA48 + BA892 / LH1431 + LH49018:45:00→18:35:00 13h 50m 1 stop via LHR · 06:25:00→12:00:00 15h 35m 1 stop via FRAAxel-exclusive $1,000Nov 13, 2026
2026-12-08 → 2026-12-13Turkish AirlinesTK204 + TK1029 / TK1128 + TK20319:05:00→20:55:00 15h 50m 1 stop via IST · 11:40:00→17:10:00 15h 30m 1 stop via ISTAxel-exclusive $925Nov 13, 2026
2026-12-08 → 2026-12-13British Airways / Turkish AirlinesBA48 + BA892 / TK1128 + TK20318:45:00→18:35:00 13h 50m 1 stop via LHR · 11:40:00→17:10:00 15h 30m 1 stop via ISTAxel-exclusive $950Nov 13, 2026
2026-12-08 → 2026-12-14Turkish AirlinesTK204 + TK1029 / TK1128 + TK20319:05:00→20:55:00 15h 50m 1 stop via IST · 11:40:00→17:10:00 15h 30m 1 stop via ISTAxel-exclusive $925Nov 13, 2026
2026-12-08 → 2026-12-14British Airways / Turkish AirlinesBA48 + BA892 / TK1128 + TK20318:45:00→18:35:00 13h 50m 1 stop via LHR · 11:40:00→17:10:00 15h 30m 1 stop via ISTAxel-exclusive $950Nov 13, 2026
2026-12-08 → 2026-12-15Turkish AirlinesTK204 + TK1029 / TK1128 + TK20319:05:00→20:55:00 15h 50m 1 stop via IST · 11:40:00→17:10:00 15h 30m 1 stop via ISTAxel-exclusive $925Nov 13, 2026
2026-12-08 → 2026-12-15British Airways / LufthansaBA48 + BA892 / LH1431 + LH49018:45:00→18:35:00 13h 50m 1 stop via LHR · 06:25:00→12:00:00 15h 35m 1 stop via FRAAxel-exclusive $1,000Nov 13, 2026
2026-12-08 → 2026-12-16Turkish AirlinesTK204 + TK1029 / TK1128 + TK20319:05:00→20:55:00 15h 50m 1 stop via IST · 11:40:00→17:10:00 15h 30m 1 stop via ISTAxel-exclusive $925Nov 13, 2026
2026-12-08 → 2026-12-16British Airways / Turkish AirlinesBA48 + BA892 / TK1128 + TK20318:45:00→18:35:00 13h 50m 1 stop via LHR · 11:40:00→17:10:00 15h 30m 1 stop via ISTAxel-exclusive $950Nov 13, 2026
2026-12-08 → 2026-12-17Turkish AirlinesTK204 + TK1029 / TK1128 + TK20319:05:00→20:55:00 15h 50m 1 stop via IST · 11:40:00→17:10:00 15h 30m 1 stop via ISTAxel-exclusive $925Nov 13, 2026
2026-12-08 → 2026-12-17British Airways / Turkish AirlinesBA48 + BA892 / TK1128 + TK20318:45:00→18:35:00 13h 50m 1 stop via LHR · 11:40:00→17:10:00 15h 30m 1 stop via ISTAxel-exclusive $950Nov 13, 2026
2026-12-08 → 2026-12-18Turkish AirlinesTK204 + TK1029 / TK1128 + TK20319:05:00→20:55:00 15h 50m 1 stop via IST · 11:40:00→17:10:00 15h 30m 1 stop via ISTAxel-exclusive $1,041Nov 13, 2026
2026-12-08 → 2026-12-18British Airways / Turkish AirlinesBA48 + BA892 / TK1128 + TK20318:45:00→18:35:00 13h 50m 1 stop via LHR · 11:40:00→17:10:00 15h 30m 1 stop via ISTAxel-exclusive $1,066Nov 13, 2026
2026-12-08 → 2026-12-19Turkish AirlinesTK204 + TK1029 / TK1128 + TK20319:05:00→20:55:00 15h 50m 1 stop via IST · 11:40:00→17:10:00 15h 30m 1 stop via ISTAxel-exclusive $1,041Nov 13, 2026
2026-12-08 → 2026-12-19British Airways / LufthansaBA48 + BA892 / LH1431 + LH49018:45:00→18:35:00 13h 50m 1 stop via LHR · 06:25:00→12:00:00 15h 35m 1 stop via FRAAxel-exclusive $1,128Nov 13, 2026
2026-12-08 → 2026-12-20Turkish AirlinesTK204 + TK1029 / TK1128 + TK20319:05:00→20:55:00 15h 50m 1 stop via IST · 11:40:00→17:10:00 15h 30m 1 stop via ISTAxel-exclusive $1,041Nov 13, 2026
2026-12-08 → 2026-12-20British Airways / Turkish AirlinesBA48 + BA892 / TK1128 + TK20318:45:00→18:35:00 13h 50m 1 stop via LHR · 11:40:00→17:10:00 15h 30m 1 stop via ISTAxel-exclusive $1,066Nov 13, 2026
2026-12-08 → 2026-12-21Turkish AirlinesTK204 + TK1029 / TK1128 + TK20319:05:00→20:55:00 15h 50m 1 stop via IST · 11:40:00→17:10:00 15h 30m 1 stop via ISTAxel-exclusive $1,041Nov 13, 2026
2026-12-08 → 2026-12-21British Airways / Turkish AirlinesBA48 + BA892 / TK1128 + TK20318:45:00→18:35:00 13h 50m 1 stop via LHR · 11:40:00→17:10:00 15h 30m 1 stop via ISTAxel-exclusive $1,066Nov 13, 2026
2026-12-08 → 2026-12-22Turkish AirlinesTK204 + TK1029 / TK1128 + TK20319:05:00→20:55:00 15h 50m 1 stop via IST · 11:40:00→17:10:00 15h 30m 1 stop via ISTAxel-exclusive $1,041Nov 13, 2026
2026-12-08 → 2026-12-22British Airways / LufthansaBA48 + BA892 / LH1431 + LH49018:45:00→18:35:00 13h 50m 1 stop via LHR · 06:25:00→12:00:00 15h 35m 1 stop via FRAAxel-exclusive $1,128Nov 13, 2026
2026-12-08 → 2026-12-29Turkish AirlinesTK204 + TK1029 / TK1128 + TK20319:05:00→20:55:00 15h 50m 1 stop via IST · 11:40:00→17:10:00 15h 30m 1 stop via ISTAxel-exclusive $1,041Nov 13, 2026
2026-12-08 → 2026-12-29British Airways / LufthansaBA48 + BA892 / LH1431 + LH49018:45:00→18:35:00 13h 50m 1 stop via LHR · 06:25:00→12:00:00 15h 35m 1 stop via FRAAxel-exclusive $1,128Nov 13, 2026
2026-12-08 → 2027-01-05Turkish AirlinesTK204 + TK1029 / TK1128 + TK20319:05:00→20:55:00 15h 50m 1 stop via IST · 11:40:00→17:10:00 15h 30m 1 stop via ISTAxel-exclusive $1,041Nov 13, 2026
2026-12-08 → 2027-01-05British Airways / LufthansaBA48 + BA892 / LH1431 + LH49018:45:00→18:35:00 13h 50m 1 stop via LHR · 06:25:00→12:00:00 15h 35m 1 stop via FRAAxel-exclusive $1,128Nov 13, 2026

Hotels in Sofia for these trips

Hotels: under a trip, hotels in Sofia for exactly those nights link to the hotel pages for 2 adults in 1 room. When a price is shown, it is the nightly rate and the stay's total, from the lowest saved total among the shortlisted hotels in that star tier for those dates.

All hotels in Sofia

Route overview: Seattle to Sofia (SOF) flight deals

2026-12-08 · one way · Axel-exclusive $675

  • Turkish Airlines TK204 / TK1029: SEA 2026-12-08 19:05:00 → SOF 2026-12-09 20:55:00; 1 stop(s) via IST; 950 minutes. Local airport times.
    • TK204: SEA 2026-12-08 19:05:00 → IST 2026-12-09 18:05:00; layover at IST: 150 minutes.
    • TK1029: IST 2026-12-09 20:35:00 → SOF 2026-12-09 20:55:00.

2026-12-08 · one way · Axel-exclusive $725

  • British Airways BA48 / BA892: SEA 2026-12-08 18:45:00 → SOF 2026-12-09 18:35:00; 1 stop(s) via LHR; 830 minutes. Local airport times.
    • BA48: SEA 2026-12-08 18:45:00 → LHR 2026-12-09 12:10:00; layover at LHR: 75 minutes.
    • BA892: LHR 2026-12-09 13:25:00 → SOF 2026-12-09 18:35:00.

2026-12-08 → 2026-12-10 · Axel-exclusive $925

  • Turkish Airlines TK204 / TK1029: SEA 2026-12-08 19:05:00 → SOF 2026-12-09 20:55:00; 1 stop(s) via IST; 950 minutes. Local airport times.
    • TK204: SEA 2026-12-08 19:05:00 → IST 2026-12-09 18:05:00; layover at IST: 150 minutes.
    • TK1029: IST 2026-12-09 20:35:00 → SOF 2026-12-09 20:55:00.
  • Turkish Airlines TK1128 / TK203: SOF 2026-12-10 11:40:00 → SEA 2026-12-10 17:10:00; 1 stop(s) via IST; 930 minutes. Local airport times.
    • TK1128: SOF 2026-12-10 11:40:00 → IST 2026-12-10 14:00:00; layover at IST: 95 minutes.
    • TK203: IST 2026-12-10 15:35:00 → SEA 2026-12-10 17:10:00.

2026-12-08 → 2026-12-10 · Axel-exclusive $1,000

  • British Airways BA48 / BA892: SEA 2026-12-08 18:45:00 → SOF 2026-12-09 18:35:00; 1 stop(s) via LHR; 830 minutes. Local airport times.
    • BA48: SEA 2026-12-08 18:45:00 → LHR 2026-12-09 12:10:00; layover at LHR: 75 minutes.
    • BA892: LHR 2026-12-09 13:25:00 → SOF 2026-12-09 18:35:00.
  • Lufthansa LH1431 / LH490: SOF 2026-12-10 06:25:00 → SEA 2026-12-10 12:00:00; 1 stop(s) via FRA; 935 minutes. Local airport times.
    • LH1431: SOF 2026-12-10 06:25:00 → FRA 2026-12-10 07:55:00; layover at FRA: 145 minutes.
    • LH490: FRA 2026-12-10 10:20:00 → SEA 2026-12-10 12:00:00.

2026-12-08 → 2026-12-11 · Axel-exclusive $925

  • Turkish Airlines TK204 / TK1029: SEA 2026-12-08 19:05:00 → SOF 2026-12-09 20:55:00; 1 stop(s) via IST; 950 minutes. Local airport times.
    • TK204: SEA 2026-12-08 19:05:00 → IST 2026-12-09 18:05:00; layover at IST: 150 minutes.
    • TK1029: IST 2026-12-09 20:35:00 → SOF 2026-12-09 20:55:00.
  • Turkish Airlines TK1128 / TK203: SOF 2026-12-11 11:40:00 → SEA 2026-12-11 17:10:00; 1 stop(s) via IST; 930 minutes. Local airport times.
    • TK1128: SOF 2026-12-11 11:40:00 → IST 2026-12-11 14:00:00; layover at IST: 95 minutes.
    • TK203: IST 2026-12-11 15:35:00 → SEA 2026-12-11 17:10:00.

2026-12-08 → 2026-12-11 · Axel-exclusive $950

  • British Airways BA48 / BA892: SEA 2026-12-08 18:45:00 → SOF 2026-12-09 18:35:00; 1 stop(s) via LHR; 830 minutes. Local airport times.
    • BA48: SEA 2026-12-08 18:45:00 → LHR 2026-12-09 12:10:00; layover at LHR: 75 minutes.
    • BA892: LHR 2026-12-09 13:25:00 → SOF 2026-12-09 18:35:00.
  • Turkish Airlines TK1128 / TK203: SOF 2026-12-11 11:40:00 → SEA 2026-12-11 17:10:00; 1 stop(s) via IST; 930 minutes. Local airport times.
    • TK1128: SOF 2026-12-11 11:40:00 → IST 2026-12-11 14:00:00; layover at IST: 95 minutes.
    • TK203: IST 2026-12-11 15:35:00 → SEA 2026-12-11 17:10:00.

2026-12-08 → 2026-12-12 · Axel-exclusive $925

  • Turkish Airlines TK204 / TK1029: SEA 2026-12-08 19:05:00 → SOF 2026-12-09 20:55:00; 1 stop(s) via IST; 950 minutes. Local airport times.
    • TK204: SEA 2026-12-08 19:05:00 → IST 2026-12-09 18:05:00; layover at IST: 150 minutes.
    • TK1029: IST 2026-12-09 20:35:00 → SOF 2026-12-09 20:55:00.
  • Turkish Airlines TK1128 / TK203: SOF 2026-12-12 11:40:00 → SEA 2026-12-12 17:10:00; 1 stop(s) via IST; 930 minutes. Local airport times.
    • TK1128: SOF 2026-12-12 11:40:00 → IST 2026-12-12 14:00:00; layover at IST: 95 minutes.
    • TK203: IST 2026-12-12 15:35:00 → SEA 2026-12-12 17:10:00.

2026-12-08 → 2026-12-12 · Axel-exclusive $1,000

  • British Airways BA48 / BA892: SEA 2026-12-08 18:45:00 → SOF 2026-12-09 18:35:00; 1 stop(s) via LHR; 830 minutes. Local airport times.
    • BA48: SEA 2026-12-08 18:45:00 → LHR 2026-12-09 12:10:00; layover at LHR: 75 minutes.
    • BA892: LHR 2026-12-09 13:25:00 → SOF 2026-12-09 18:35:00.
  • Lufthansa LH1431 / LH490: SOF 2026-12-12 06:25:00 → SEA 2026-12-12 12:00:00; 1 stop(s) via FRA; 935 minutes. Local airport times.
    • LH1431: SOF 2026-12-12 06:25:00 → FRA 2026-12-12 07:55:00; layover at FRA: 145 minutes.
    • LH490: FRA 2026-12-12 10:20:00 → SEA 2026-12-12 12:00:00.

2026-12-08 → 2026-12-14 · Axel-exclusive $925

  • Turkish Airlines TK204 / TK1029: SEA 2026-12-08 19:05:00 → SOF 2026-12-09 20:55:00; 1 stop(s) via IST; 950 minutes. Local airport times.
    • TK204: SEA 2026-12-08 19:05:00 → IST 2026-12-09 18:05:00; layover at IST: 150 minutes.
    • TK1029: IST 2026-12-09 20:35:00 → SOF 2026-12-09 20:55:00.
  • Turkish Airlines TK1128 / TK203: SOF 2026-12-14 11:40:00 → SEA 2026-12-14 17:10:00; 1 stop(s) via IST; 930 minutes. Local airport times.
    • TK1128: SOF 2026-12-14 11:40:00 → IST 2026-12-14 14:00:00; layover at IST: 95 minutes.
    • TK203: IST 2026-12-14 15:35:00 → SEA 2026-12-14 17:10:00.

2026-12-08 → 2026-12-14 · Axel-exclusive $950

  • British Airways BA48 / BA892: SEA 2026-12-08 18:45:00 → SOF 2026-12-09 18:35:00; 1 stop(s) via LHR; 830 minutes. Local airport times.
    • BA48: SEA 2026-12-08 18:45:00 → LHR 2026-12-09 12:10:00; layover at LHR: 75 minutes.
    • BA892: LHR 2026-12-09 13:25:00 → SOF 2026-12-09 18:35:00.
  • Turkish Airlines TK1128 / TK203: SOF 2026-12-14 11:40:00 → SEA 2026-12-14 17:10:00; 1 stop(s) via IST; 930 minutes. Local airport times.
    • TK1128: SOF 2026-12-14 11:40:00 → IST 2026-12-14 14:00:00; layover at IST: 95 minutes.
    • TK203: IST 2026-12-14 15:35:00 → SEA 2026-12-14 17:10:00.

2026-12-08 → 2026-12-15 · Axel-exclusive $925

  • Turkish Airlines TK204 / TK1029: SEA 2026-12-08 19:05:00 → SOF 2026-12-09 20:55:00; 1 stop(s) via IST; 950 minutes. Local airport times.
    • TK204: SEA 2026-12-08 19:05:00 → IST 2026-12-09 18:05:00; layover at IST: 150 minutes.
    • TK1029: IST 2026-12-09 20:35:00 → SOF 2026-12-09 20:55:00.
  • Turkish Airlines TK1128 / TK203: SOF 2026-12-15 11:40:00 → SEA 2026-12-15 17:10:00; 1 stop(s) via IST; 930 minutes. Local airport times.
    • TK1128: SOF 2026-12-15 11:40:00 → IST 2026-12-15 14:00:00; layover at IST: 95 minutes.
    • TK203: IST 2026-12-15 15:35:00 → SEA 2026-12-15 17:10:00.

2026-12-08 → 2026-12-15 · Axel-exclusive $1,000

  • British Airways BA48 / BA892: SEA 2026-12-08 18:45:00 → SOF 2026-12-09 18:35:00; 1 stop(s) via LHR; 830 minutes. Local airport times.
    • BA48: SEA 2026-12-08 18:45:00 → LHR 2026-12-09 12:10:00; layover at LHR: 75 minutes.
    • BA892: LHR 2026-12-09 13:25:00 → SOF 2026-12-09 18:35:00.
  • Lufthansa LH1431 / LH490: SOF 2026-12-15 06:25:00 → SEA 2026-12-15 12:00:00; 1 stop(s) via FRA; 935 minutes. Local airport times.
    • LH1431: SOF 2026-12-15 06:25:00 → FRA 2026-12-15 07:55:00; layover at FRA: 145 minutes.
    • LH490: FRA 2026-12-15 10:20:00 → SEA 2026-12-15 12:00:00.

2026-12-08 → 2026-12-17 · Axel-exclusive $925

  • Turkish Airlines TK204 / TK1029: SEA 2026-12-08 19:05:00 → SOF 2026-12-09 20:55:00; 1 stop(s) via IST; 950 minutes. Local airport times.
    • TK204: SEA 2026-12-08 19:05:00 → IST 2026-12-09 18:05:00; layover at IST: 150 minutes.
    • TK1029: IST 2026-12-09 20:35:00 → SOF 2026-12-09 20:55:00.
  • Turkish Airlines TK1128 / TK203: SOF 2026-12-17 11:40:00 → SEA 2026-12-17 17:10:00; 1 stop(s) via IST; 930 minutes. Local airport times.
    • TK1128: SOF 2026-12-17 11:40:00 → IST 2026-12-17 14:00:00; layover at IST: 95 minutes.
    • TK203: IST 2026-12-17 15:35:00 → SEA 2026-12-17 17:10:00.

2026-12-08 → 2026-12-17 · Axel-exclusive $950

  • British Airways BA48 / BA892: SEA 2026-12-08 18:45:00 → SOF 2026-12-09 18:35:00; 1 stop(s) via LHR; 830 minutes. Local airport times.
    • BA48: SEA 2026-12-08 18:45:00 → LHR 2026-12-09 12:10:00; layover at LHR: 75 minutes.
    • BA892: LHR 2026-12-09 13:25:00 → SOF 2026-12-09 18:35:00.
  • Turkish Airlines TK1128 / TK203: SOF 2026-12-17 11:40:00 → SEA 2026-12-17 17:10:00; 1 stop(s) via IST; 930 minutes. Local airport times.
    • TK1128: SOF 2026-12-17 11:40:00 → IST 2026-12-17 14:00:00; layover at IST: 95 minutes.
    • TK203: IST 2026-12-17 15:35:00 → SEA 2026-12-17 17:10:00.

2026-12-08 → 2026-12-18 · Axel-exclusive $1,041

  • Turkish Airlines TK204 / TK1029: SEA 2026-12-08 19:05:00 → SOF 2026-12-09 20:55:00; 1 stop(s) via IST; 950 minutes. Local airport times.
    • TK204: SEA 2026-12-08 19:05:00 → IST 2026-12-09 18:05:00; layover at IST: 150 minutes.
    • TK1029: IST 2026-12-09 20:35:00 → SOF 2026-12-09 20:55:00.
  • Turkish Airlines TK1128 / TK203: SOF 2026-12-18 11:40:00 → SEA 2026-12-18 17:10:00; 1 stop(s) via IST; 930 minutes. Local airport times.
    • TK1128: SOF 2026-12-18 11:40:00 → IST 2026-12-18 14:00:00; layover at IST: 95 minutes.
    • TK203: IST 2026-12-18 15:35:00 → SEA 2026-12-18 17:10:00.

2026-12-08 → 2026-12-18 · Axel-exclusive $1,066

  • British Airways BA48 / BA892: SEA 2026-12-08 18:45:00 → SOF 2026-12-09 18:35:00; 1 stop(s) via LHR; 830 minutes. Local airport times.
    • BA48: SEA 2026-12-08 18:45:00 → LHR 2026-12-09 12:10:00; layover at LHR: 75 minutes.
    • BA892: LHR 2026-12-09 13:25:00 → SOF 2026-12-09 18:35:00.
  • Turkish Airlines TK1128 / TK203: SOF 2026-12-18 11:40:00 → SEA 2026-12-18 17:10:00; 1 stop(s) via IST; 930 minutes. Local airport times.
    • TK1128: SOF 2026-12-18 11:40:00 → IST 2026-12-18 14:00:00; layover at IST: 95 minutes.
    • TK203: IST 2026-12-18 15:35:00 → SEA 2026-12-18 17:10:00.

2026-12-08 → 2026-12-19 · Axel-exclusive $1,041

  • Turkish Airlines TK204 / TK1029: SEA 2026-12-08 19:05:00 → SOF 2026-12-09 20:55:00; 1 stop(s) via IST; 950 minutes. Local airport times.
    • TK204: SEA 2026-12-08 19:05:00 → IST 2026-12-09 18:05:00; layover at IST: 150 minutes.
    • TK1029: IST 2026-12-09 20:35:00 → SOF 2026-12-09 20:55:00.
  • Turkish Airlines TK1128 / TK203: SOF 2026-12-19 11:40:00 → SEA 2026-12-19 17:10:00; 1 stop(s) via IST; 930 minutes. Local airport times.
    • TK1128: SOF 2026-12-19 11:40:00 → IST 2026-12-19 14:00:00; layover at IST: 95 minutes.
    • TK203: IST 2026-12-19 15:35:00 → SEA 2026-12-19 17:10:00.

2026-12-08 → 2026-12-19 · Axel-exclusive $1,128

  • British Airways BA48 / BA892: SEA 2026-12-08 18:45:00 → SOF 2026-12-09 18:35:00; 1 stop(s) via LHR; 830 minutes. Local airport times.
    • BA48: SEA 2026-12-08 18:45:00 → LHR 2026-12-09 12:10:00; layover at LHR: 75 minutes.
    • BA892: LHR 2026-12-09 13:25:00 → SOF 2026-12-09 18:35:00.
  • Lufthansa LH1431 / LH490: SOF 2026-12-19 06:25:00 → SEA 2026-12-19 12:00:00; 1 stop(s) via FRA; 935 minutes. Local airport times.
    • LH1431: SOF 2026-12-19 06:25:00 → FRA 2026-12-19 07:55:00; layover at FRA: 145 minutes.
    • LH490: FRA 2026-12-19 10:20:00 → SEA 2026-12-19 12:00:00.

2026-12-08 → 2026-12-21 · Axel-exclusive $1,041

  • Turkish Airlines TK204 / TK1029: SEA 2026-12-08 19:05:00 → SOF 2026-12-09 20:55:00; 1 stop(s) via IST; 950 minutes. Local airport times.
    • TK204: SEA 2026-12-08 19:05:00 → IST 2026-12-09 18:05:00; layover at IST: 150 minutes.
    • TK1029: IST 2026-12-09 20:35:00 → SOF 2026-12-09 20:55:00.
  • Turkish Airlines TK1128 / TK203: SOF 2026-12-21 11:40:00 → SEA 2026-12-21 17:10:00; 1 stop(s) via IST; 930 minutes. Local airport times.
    • TK1128: SOF 2026-12-21 11:40:00 → IST 2026-12-21 14:00:00; layover at IST: 95 minutes.
    • TK203: IST 2026-12-21 15:35:00 → SEA 2026-12-21 17:10:00.

2026-12-08 → 2026-12-21 · Axel-exclusive $1,066

  • British Airways BA48 / BA892: SEA 2026-12-08 18:45:00 → SOF 2026-12-09 18:35:00; 1 stop(s) via LHR; 830 minutes. Local airport times.
    • BA48: SEA 2026-12-08 18:45:00 → LHR 2026-12-09 12:10:00; layover at LHR: 75 minutes.
    • BA892: LHR 2026-12-09 13:25:00 → SOF 2026-12-09 18:35:00.
  • Turkish Airlines TK1128 / TK203: SOF 2026-12-21 11:40:00 → SEA 2026-12-21 17:10:00; 1 stop(s) via IST; 930 minutes. Local airport times.
    • TK1128: SOF 2026-12-21 11:40:00 → IST 2026-12-21 14:00:00; layover at IST: 95 minutes.
    • TK203: IST 2026-12-21 15:35:00 → SEA 2026-12-21 17:10:00.

2026-12-08 → 2026-12-22 · Axel-exclusive $1,041

  • Turkish Airlines TK204 / TK1029: SEA 2026-12-08 19:05:00 → SOF 2026-12-09 20:55:00; 1 stop(s) via IST; 950 minutes. Local airport times.
    • TK204: SEA 2026-12-08 19:05:00 → IST 2026-12-09 18:05:00; layover at IST: 150 minutes.
    • TK1029: IST 2026-12-09 20:35:00 → SOF 2026-12-09 20:55:00.
  • Turkish Airlines TK1128 / TK203: SOF 2026-12-22 11:40:00 → SEA 2026-12-22 17:10:00; 1 stop(s) via IST; 930 minutes. Local airport times.
    • TK1128: SOF 2026-12-22 11:40:00 → IST 2026-12-22 14:00:00; layover at IST: 95 minutes.
    • TK203: IST 2026-12-22 15:35:00 → SEA 2026-12-22 17:10:00.

2026-12-08 → 2026-12-22 · Axel-exclusive $1,128

  • British Airways BA48 / BA892: SEA 2026-12-08 18:45:00 → SOF 2026-12-09 18:35:00; 1 stop(s) via LHR; 830 minutes. Local airport times.
    • BA48: SEA 2026-12-08 18:45:00 → LHR 2026-12-09 12:10:00; layover at LHR: 75 minutes.
    • BA892: LHR 2026-12-09 13:25:00 → SOF 2026-12-09 18:35:00.
  • Lufthansa LH1431 / LH490: SOF 2026-12-22 06:25:00 → SEA 2026-12-22 12:00:00; 1 stop(s) via FRA; 935 minutes. Local airport times.
    • LH1431: SOF 2026-12-22 06:25:00 → FRA 2026-12-22 07:55:00; layover at FRA: 145 minutes.
    • LH490: FRA 2026-12-22 10:20:00 → SEA 2026-12-22 12:00:00.

2026-12-08 → 2027-01-05 · Axel-exclusive $1,041

  • Turkish Airlines TK204 / TK1029: SEA 2026-12-08 19:05:00 → SOF 2026-12-09 20:55:00; 1 stop(s) via IST; 950 minutes. Local airport times.
    • TK204: SEA 2026-12-08 19:05:00 → IST 2026-12-09 18:05:00; layover at IST: 150 minutes.
    • TK1029: IST 2026-12-09 20:35:00 → SOF 2026-12-09 20:55:00.
  • Turkish Airlines TK1128 / TK203: SOF 2027-01-05 11:40:00 → SEA 2027-01-05 17:10:00; 1 stop(s) via IST; 930 minutes. Local airport times.
    • TK1128: SOF 2027-01-05 11:40:00 → IST 2027-01-05 14:00:00; layover at IST: 95 minutes.
    • TK203: IST 2027-01-05 15:35:00 → SEA 2027-01-05 17:10:00.

2026-12-08 → 2027-01-05 · Axel-exclusive $1,128

  • British Airways BA48 / BA892: SEA 2026-12-08 18:45:00 → SOF 2026-12-09 18:35:00; 1 stop(s) via LHR; 830 minutes. Local airport times.
    • BA48: SEA 2026-12-08 18:45:00 → LHR 2026-12-09 12:10:00; layover at LHR: 75 minutes.
    • BA892: LHR 2026-12-09 13:25:00 → SOF 2026-12-09 18:35:00.
  • Lufthansa LH1431 / LH490: SOF 2027-01-05 06:25:00 → SEA 2027-01-05 12:00:00; 1 stop(s) via FRA; 935 minutes. Local airport times.
    • LH1431: SOF 2027-01-05 06:25:00 → FRA 2027-01-05 07:55:00; layover at FRA: 145 minutes.
    • LH490: FRA 2027-01-05 10:20:00 → SEA 2027-01-05 12:00:00.

Explore this route

For AI assistants

  • This page: Seattle (SEA) to Sofia (SOF) · Dec 8, 2026 · choose your return date: 1 adult in economy, every priced fare with its flights, times and total, each with its displayed check date. Under a trip, hotels in Sofia for exactly those nights link to the hotel pages for 2 adults in 1 room. Prices, when shown, are the nightly rate and the stay's total, from the lowest saved total among the shortlisted hotels in each star tier for those dates.
  • 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 Sofia (SOF) 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.