United flights to San Diego from Boston

    Plan, book, fly with confidence
  • trending down icon
    Be in the know
    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon
    Book smarter
    Save up to 40% on select hotels after you book a flight*
  • payments icon
    Earn twice
    Earn your airline miles on top of our rewards
    Sign in

United flights from Boston to San Diego (BOS→SAN)

Prices were available within the past 7 days and start at S$231 for one-way flights and S$375 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Thu, 23 Jan - Wed, 29 Jan
BOS
Boston
SAN
San Diego
S$375 Return, found 3 days ago
S$375
Return
found 3 days ago
Select United flight, departing Thu, 23 Jan from Boston to San Diego, returning Wed, 29 Jan, priced at S$375 found 3 days ago
United
Tue, 10 Dec - Sun, 15 Dec
BOS
Boston
SAN
San Diego
S$420 Return, found 5 days ago
S$420
Return
found 5 days ago
Select United flight, departing Tue, 10 Dec from Boston to San Diego, returning Sun, 15 Dec, priced at S$420 found 5 days ago
United
Thu, 23 Jan - Wed, 29 Jan
BOS
Boston
SAN
San Diego
S$434 Return, found 3 days ago
S$434
Return
found 3 days ago
Select United flight, departing Thu, 23 Jan from Boston to San Diego, returning Wed, 29 Jan, priced at S$434 found 3 days ago
United
Thu, 23 Jan - Wed, 29 Jan
BOS
Boston
SAN
San Diego
S$440 Return, found 3 days ago
S$440
Return
found 3 days ago
Select United flight, departing Thu, 23 Jan from Boston to San Diego, returning Wed, 29 Jan, priced at S$440 found 3 days ago
*Available to Expedia members.