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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.

  1. SEA-BOS

    From Seattle to Boston

    Departing 12/08/2018

    Fares From
    $84*

    One Way

  2. SEA-BOS

    From Seattle to Boston

    Departing 12/11/2018

    Fares From
    $84*

    One Way

  3. SEA-BOS

    From Seattle to Boston

    Departing 12/12/2018

    Fares From
    $84*

    One Way

  4. SEA-BOS

    From Seattle to Boston

    Departing 01/09/2019

    Fares From
    $84*

    One Way

  5. SEA-BOS

    From Seattle to Boston

    Departing 01/15/2019

    Fares From
    $84*

    One Way

  6. SEA-BOS

    From Seattle to Boston

    Departing 01/22/2019

    Fares From
    $84*

    One Way

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. From Seattle (SEA) to Boston (BOS)

    One Way

    Departing 02/27/2019

    Fares From
    $152*
  2. From Seattle (SEA) to Boston (BOS)

    One Way

    Departing 03/02/2019

    Fares From
    $152*
  3. From Seattle (SEA) to Boston (BOS)

    One Way

    Departing 03/04/2019

    Fares From
    $152*
  4. From Seattle (SEA) to Boston (BOS)

    One Way

    Departing 03/05/2019

    Fares From
    $152*
  5. From Seattle (SEA) to Boston (BOS)

    One Way

    Departing 03/06/2019

    Fares From
    $152*
  6. From Seattle (SEA) to Boston (BOS)

    One Way

    Departing 04/30/2019

    Fares From
    $152*
  7. From Seattle (SEA) to Boston (BOS)

    One Way

    Departing 03/03/2019

    Fares From
    $194*
  8. From Seattle (SEA) to Boston (BOS)

    One Way

    Departing 02/26/2019

    Fares From
    $242*
  9. From Seattle (SEA) to Boston (BOS)

    One Way

    Departing 03/12/2019

    Fares From
    $287*
  10. From Seattle (SEA) to Boston (BOS)

    One Way

    Departing 03/13/2019

    Fares From
    $287*

Weather in Boston

Friday ,heavy intensity rain
7°C 11/16/2018
Saturday ,sky is clear
6°C 11/17/2018
Sunday ,light rain
5°C 11/18/2018
Monday ,heavy intensity rain
11°C 11/19/2018
Tuesday ,sky is clear
-1°C 11/20/2018
Wednesday ,light snow
2°C 11/21/2018
Thursday ,light snow
2°C 11/22/2018
Powered by: OpenWeatherMap.org