Washington (IAD) to San Diego (SAN) flight deal in economy from $307

Monday, September 21st, 2026

5 round-trip options

Returning
Sat, Sep 26, 20265 Day Trip
$347 USD
Returning
Wed, Sep 30, 20269 Day Trip
$347 USD
Returning
Thu, Oct 1, 202610 Day Trip
$387 USD
Returning
Sun, Oct 4, 202613 Day Trip
$387 USD
Returning
Mon, Oct 5, 202614 Day Trip
$387 USD