Southwest® flights from Milwaukee to San Diego from $149

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Low fares from Milwaukee to San Diego

$

Milwaukee (MKE)to

San Diego (SAN)
Depart: 10/29/2026

One-way

Basic

From
$149
Seen: 3 hrs ago

Milwaukee (MKE)to

San Diego (SAN)
Depart: 09/30/2026

One-way

Basic

From
$154
Seen: 6 hrs ago

Milwaukee (MKE)to

San Diego (SAN)
Depart: 10/05/2026

One-way

Basic

From
$154
Seen: 9 hrs ago

Milwaukee (MKE)to

San Diego (SAN)
Depart: 09/09/2026

One-way

Basic

From
$154
Seen: 6 hrs ago

Milwaukee (MKE)to

San Diego (SAN)
Depart: 09/26/2026

One-way

Basic

From
$154
Seen: 11 hrs ago

Milwaukee (MKE)to

San Diego (SAN)
Depart: 10/28/2026

One-way

Basic

From
$154
Seen: 10 hrs ago

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Explore flights from Milwaukee to San Diego

Aug 2026
From$285*
Seen: 3 hrs ago
One Way/Basic
Sep 2026
From$154*
Seen: 11 hrs ago
One Way/Basic
Oct 2026
From$149*
Seen: 3 hrs ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $154
cmp-daily-histogram-bars-legend-max-price-aria-label $300
Displaying fares for August-2026
  • MKE–SAN, 08/20/2026: From $300
    20

    Thu

    AUG

  • MKE–SAN: cmp-view-offers-disclaimer. Find Offers
    21

    Fri

  • MKE–SAN: cmp-view-offers-disclaimer. Find Offers
    22

    Sat

  • MKE–SAN, 08/23/2026: From $285
    23

    Sun

  • MKE–SAN, 08/24/2026: From $285
    24

    Mon

  • MKE–SAN, 08/25/2026: From $285
    25

    Tue

  • MKE–SAN, 08/26/2026: From $285
    26

    Wed

  • MKE–SAN, 08/27/2026: From $285
    27

    Thu

  • MKE–SAN, 08/28/2026: From $285
    28

    Fri

  • MKE–SAN, 08/29/2026: From $285
    29

    Sat

  • MKE–SAN: cmp-view-offers-disclaimer. Find Offers
    30

    Sun

  • MKE–SAN: cmp-view-offers-disclaimer. Find Offers
    31

    Mon

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

    Tue

    SEP

  • MKE–SAN, 09/02/2026: From $285
    02

    Wed

  • MKE–SAN, 09/03/2026: From $285
    03

    Thu

  • MKE–SAN, 09/04/2026: From $285
    04

    Fri

  • MKE–SAN: cmp-view-offers-disclaimer. Find Offers
    05

    Sat

  • MKE–SAN: cmp-view-offers-disclaimer. Find Offers
    06

    Sun

  • MKE–SAN, 09/07/2026: From $285
    07

    Mon

  • MKE–SAN, 09/08/2026: From $285
    08

    Tue

  • MKE–SAN, 09/09/2026: From $154
    09

    Wed

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

    Thu

  • MKE–SAN: cmp-view-offers-disclaimer. Find Offers
    11

    Fri

  • MKE–SAN: cmp-view-offers-disclaimer. Find Offers
    12

    Sat

  • MKE–SAN, 09/13/2026: From $284
    13

    Sun

  • MKE–SAN, 09/14/2026: From $204
    14

    Mon

  • MKE–SAN, 09/15/2026: From $154
    15

    Tue

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

    Wed

  • MKE–SAN, 09/17/2026: From $204
    17

    Thu

  • MKE–SAN: cmp-view-offers-disclaimer. Find Offers
    18

    Fri

  • MKE–SAN, 09/19/2026: From $154
    19

    Sat

    • Range$154-$300

    *Fares displayed have been collected within the last 24 hours and may no longer be available at time of booking. Additional fees and charges for optional products and services may apply. Modifying this information may result in a different fare. To find the most updated fare, please visit Southwest.com. Fares listed are Basic, which are subject to additional terms and conditions.

    Flight Details

    Departing from:
    General Mitchell Airport
    Arriving at:
    San Diego International Airport
    Average flight time:
    4 hours 16 minutes
    Distance:
    1739 miles

    Route Information

    152† Weekly flights
    • 1‡ Nonstop flight per day Monday through Friday
    • 1‡ Nonstop flight on Saturday
    • 1‡ Nonstop flight on Sunday

    † Weekly flights based on DOT published scheduled average flights Monday through Sunday between 9/1/2025 and 9/30/2025. Note: route may not operate every day of the week.

    ‡ Nonstop flights based on DOT published scheduled average flights Monday through Sunday between 9/1/2025 and 9/30/2025.

    Questions we hear the most

    The average flight time from Milwaukee to San Diego is 4 hours 16 minutes.
    There are 152 weekly flights from Milwaukee to San Diego on Southwest Airlines.
    Yes, Southwest flies nonstop from Milwaukee to San Diego once per day from Monday through Friday.
    Yes, Southwest flies nonstop from Milwaukee to San Diego once per day on Saturdays and Sundays.
    To find the lowest fares by day and time to fly Milwaukee to San Diego with Southwest, check out our Low Fare Calendar.
    You can rent a car at San Diego International Airport book yours with your flight.
    Yes! Flights from Milwaukee to San Diego—or from here or there to anywhere—can be changed with no change fees. Fare difference may apply.
    Check the status of your upcoming Southwest flight.
    Check out the Southwest Airlines® Help Center for answers about everything Southwest.

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