Flights from Chicago, IL to San Diego, CA

Promo Code

Best Deals on Flights From Chicago, IL (ORD) to San Diego, CA (SAN)

Sep 2026
from$147*
Last seen: 1 hour ago
One-way/Economy
Oct 2026
from$118*
Last seen: 3 hours ago
One-way/Economy
Nov 2026
from$108*
Last seen: 23 hours ago
One-way/Economy
cmp-daily-histogram-bars-legend-min-price-aria-label $118
cmp-daily-histogram-bars-legend-max-price-aria-label $232
Displaying fares for September-2026
  • ORD–SAN: cmp-view-offers-disclaimer. Find Offers
    23

    Wed

    SEP

  • ORD–SAN: cmp-view-offers-disclaimer. Find Offers
    24

    Thu

  • ORD–SAN, Sep 25, 2026: from $167
    25

    Fri

  • ORD–SAN: cmp-view-offers-disclaimer. Find Offers
    26

    Sat

  • ORD–SAN: cmp-view-offers-disclaimer. Find Offers
    27

    Sun

  • ORD–SAN, Sep 28, 2026: from $167
    28

    Mon

  • ORD–SAN, Sep 29, 2026: from $147
    29

    Tue

  • ORD–SAN, Sep 30, 2026: from $147
    30

    Wed

  • ORD–SAN: cmp-view-offers-disclaimer. Find Offers
    01

    Thu

    OCT

  • ORD–SAN, Oct 2, 2026: from $167
    02

    Fri

  • ORD–SAN: cmp-view-offers-disclaimer. Find Offers
    03

    Sat

  • ORD–SAN: cmp-view-offers-disclaimer. Find Offers
    04

    Sun

  • ORD–SAN, Oct 5, 2026: from $173
    05

    Mon

  • ORD–SAN, Oct 6, 2026: from $147
    06

    Tue

  • ORD–SAN, Oct 7, 2026: from $167
    07

    Wed

  • ORD–SAN, Oct 8, 2026: from $232
    08

    Thu

  • ORD–SAN: cmp-view-offers-disclaimer. Find Offers
    09

    Fri

  • ORD–SAN: cmp-view-offers-disclaimer. Find Offers
    10

    Sat

  • ORD–SAN, Oct 11, 2026: from $232
    11

    Sun

  • ORD–SAN, Oct 12, 2026: from $212
    12

    Mon

  • ORD–SAN: cmp-view-offers-disclaimer. Find Offers
    13

    Tue

  • ORD–SAN: cmp-view-offers-disclaimer. Find Offers
    14

    Wed

  • ORD–SAN: cmp-view-offers-disclaimer. Find Offers
    15

    Thu

  • ORD–SAN: cmp-view-offers-disclaimer. Find Offers
    16

    Fri

  • ORD–SAN: cmp-view-offers-disclaimer. Find Offers
    17

    Sat

  • ORD–SAN, Oct 18, 2026: from $164
    18

    Sun

  • ORD–SAN, Oct 19, 2026: from $124
    19

    Mon

  • ORD–SAN: cmp-view-offers-disclaimer. Find Offers
    20

    Tue

  • ORD–SAN, Oct 21, 2026: from $118
    21

    Wed

  • ORD–SAN, Oct 22, 2026: from $176
    22

    Thu

    • Range$118-$232

    *Prices found by others in the previous 48 hours for round-trip flights. Prices shown may also require membership in our travel club, Discount Den.

    Flights Deals from Chicago, IL to San Diego, CA on Frontier

    $
    Flights Deals from Chicago, IL to San Diego, CA on Frontier
    From
    To
    Chicago, IL (ORD)San Diego, CA (SAN)One-way
    /
    Discount Den Basic Fare    		Departing Jan 22, 2027

    From

    $165

    Last seen: 3 hours ago

    *Prices found by others in the previous 48 hours for one-way flights. Prices shown may also require membership in our travel club, Discount Den®.

    Chicago, IL San Diego, CA

    Barclays Badge

    Earn up to 60,000 Miles after qualifying activity. Terms apply.