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Ultra Low Fare Flights from Seattle (SEA) to Boston (BOS) with Spirit

Fly Seattle to Boston and Save Big

*Fares presented below are available at the beginning of each day, but may sell out. Additional baggage fees and fees for other services may apply. Other terms and conditions may apply.

Ultra Low Fare Flights from Seattle (SEA) to Boston (BOS) with Spirit

Seattle to Boston Flight Deals

*Fares presented below are available at the beginning of each day, but may sell out. Additional baggage fees and fees for other services may apply. Other terms and conditions may apply.

  1. Seattle (SEA) to Boston (BOS)

    One Way

    Departing 02/03/2020

    Fares From
    $84*
  2. Seattle (SEA) to Boston (BOS)

    One Way

    Departing 02/08/2020

    Fares From
    $84*
  3. Seattle (SEA) to Boston (BOS)

    One Way

    Departing 02/10/2020

    Fares From
    $84*
  4. Seattle (SEA) to Boston (BOS)

    One Way

    Departing 01/25/2020

    Fares From
    $84*
  5. Seattle (SEA) to Boston (BOS)

    One Way

    Departing 01/27/2020

    Fares From
    $84*
  6. Seattle (SEA) to Boston (BOS)

    One Way

    Departing 03/03/2020

    Fares From
    $104*
  7. Seattle (SEA) to Boston (BOS)

    One Way

    Departing 03/04/2020

    Fares From
    $104*
  8. Seattle (SEA) to Boston (BOS)

    One Way

    Departing 02/25/2020

    Fares From
    $104*
  9. Seattle (SEA) to Boston (BOS)

    One Way

    Departing 02/26/2020

    Fares From
    $104*
  10. Seattle (SEA) to Boston (BOS)

    One Way

    Departing 02/01/2020

    Fares From
    $110*

Weather in Boston

Tuesday ,light rain
58°F 10/22/2019
Wednesday ,light rain
59°F 10/23/2019
Thursday ,few clouds
58°F 10/24/2019
Friday ,overcast clouds
58°F 10/25/2019
Saturday ,moderate rain
56°F 10/26/2019
Sunday ,sky is clear
51°F 10/27/2019
Monday ,sky is clear
56°F 10/28/2019
Powered by: OpenWeatherMap.org