Select journey type

Enter to select travel class and passengers

Ultra Low Fare Flights from Boston (BOS) to San Diego (SAN) with Spirit

Fly Boston to San Diego 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. BOS-SAN

    From Boston to San Diego

    Departing 11/28/2018

    Fares From
    $110*

    One Way

  2. BOS-SAN

    From Boston to San Diego

    Departing 12/01/2018

    Fares From
    $110*

    One Way

  3. BOS-SAN

    From Boston to San Diego

    Departing 12/04/2018

    Fares From
    $110*

    One Way

  4. BOS-SAN

    From Boston to San Diego

    Departing 01/09/2019

    Fares From
    $110*

    One Way

  5. BOS-SAN

    From Boston to San Diego

    Departing 01/12/2019

    Fares From
    $110*

    One Way

  6. BOS-SAN

    From Boston to San Diego

    Departing 01/15/2019

    Fares From
    $110*

    One Way

Ultra Low Fare Flights from Boston (BOS) to San Diego (SAN) with Spirit

Boston to San Diego 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 Boston (BOS) to San Diego (SAN)

    One Way

    Departing 07/09/2019

    Fares From
    $300*
  2. From Boston (BOS) to San Diego (SAN)

    One Way

    Departing 07/17/2019

    Fares From
    $300*

Weather in San Diego

Wednesday ,sky is clear
23°C 11/14/2018
Thursday ,few clouds
21°C 11/15/2018
Friday ,few clouds
22°C 11/16/2018
Saturday ,sky is clear
18°C 11/17/2018
Sunday ,sky is clear
19°C 11/18/2018
Monday ,light rain
18°C 11/19/2018
Tuesday ,sky is clear
19°C 11/20/2018
Powered by: OpenWeatherMap.org