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$289+ Cheap flights from Green Bay to San Diego (GRB - SAN)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/2. Fares are subject to change and may not be available on all flights or dates of travel.
GRB — SAN
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheapflights Tip: The best prices from Green Bay Austin-Straubel to San Diego are usually found in November or June, booked 73 days in advance, depart on a Friday or Thursday and return on a Tuesday

Cheap flight deals from Green Bay to San Diego

Discover tips and strategies to find the most affordable flight options for your journey from Green Bay (GRB) to San Diego (SAN). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated September 11, 2025.

Round-trip from

$289
(United Airlines)

Popular in

March

Cheapest in

November

Average price

$388
From Green Bay Austin-Straubel to San Diego
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($52 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($13 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2025
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Find flight deals from Green Bay to San Diego

Cheapest flights from Green Bay to San Diego
Explore the most affordable flight options available from Green Bay to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

This United Airlines deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/25:25 pmGRB - SAN
1 stop6h 49mUnited Airlines
Mon 10/66:48 amSAN - GRB
1 stop8h 02mUnited Airlines
Deal found 9/10$289
This United Airlines deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/178:00 amGRB - SAN
2 stops9h 04mUnited Airlines
Thu 12/2511:00 amSAN - GRB
2 stops8h 36mUnited Airlines
Deal found 9/10$299
This United Airlines deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/183:42 pmGRB - SAN
2 stops8h 50mUnited Airlines
Thu 12/2511:00 amSAN - GRB
2 stops8h 36mUnited Airlines
Deal found 9/10$311
This Delta deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/2711:07 amGRB - SAN
1 stop9h 26mDelta
Sat 10/410:55 amSAN - GRB
1 stop10h 05mDelta
Deal found 9/11$314
This American Airlines deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/218:08 pmGRB - SAN
1 stop15h 51mAmerican Airlines
Tue 10/286:16 amSAN - GRB
1 stop11h 22mAmerican Airlines
Deal found 9/10$333
This United Airlines deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/245:30 pmGRB - SAN
1 stop6h 32mUnited Airlines
Sun 9/286:48 amSAN - GRB
1 stop6h 21mUnited Airlines
Deal found 9/9$339
This Delta deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/204:13 pmGRB - SAN
1 stop6h 34mDelta
Sat 10/411:23 amSAN - GRB
1 stop9h 12mDelta
Deal found 9/9$354
This American Airlines deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/1810:09 amGRB - SAN
1 stop11h 50mAmerican Airlines
Thu 12/253:03 pmSAN - GRB
1 stop6h 24mAmerican Airlines
Deal found 9/10$361

Cheapflights Fare Finder

 
Customize your flight search to find flights from Green Bay to San Diego that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 11, 2025.
Use the filters below to find and compare flights from Green Bay to San Diego that are best for you.

Fly from

Green Bay

Fly to

San Diego

Route

Depart

Return

Price

Green BaySan Diego

GRB - SAN

GRBSAN

Green Bay Austin-Straubel

Thu 10/2

5:25 pm-10:14 pm

1 stop6h 49m

San Diego

Mon 10/6

6:48 am-4:50 pm

1 stop8h 02m

$289

Green BaySan Diego

GRB - SAN

GRBSAN

Green Bay Austin-Straubel

Wed 11/26

10:46 am-4:02 pm

1 stop7h 16m

San Diego

Sun 11/30

2:16 pm-1:03 am

1 stop8h 47m

$289

Green BaySan Diego

GRB - SAN

GRBSAN

Green Bay Austin-Straubel

Sat 9/27

11:07 am-6:33 pm

1 stop9h 26m

San Diego

Sat 10/4

10:55 am-11:00 pm

1 stop10h 05m

$314

Green BaySan Diego

GRB - SAN

GRBSAN

Green Bay Austin-Straubel

Tue 10/21

8:08 pm-9:59 am

1 stop15h 51m

San Diego

Tue 10/28

6:16 am-7:38 pm

1 stop11h 22m

$333

Green BaySan Diego

GRB - SAN

GRBSAN

Green Bay Austin-Straubel

Wed 10/22

4:16 pm-8:34 pm

1 stop6h 18m

San Diego

Wed 10/29

6:25 am-3:36 pm

1 stop7h 11m

$339

Green BaySan Diego

GRB - SAN

GRBSAN

Green Bay Austin-Straubel

Thu 9/25

5:25 pm-10:14 pm

1 stop6h 49m

San Diego

Mon 9/29

11:08 am-10:40 pm

2 stops9h 32m

$344

Green BaySan Diego

GRB - SAN

GRBSAN

Green Bay Austin-Straubel

Wed 9/24

6:15 am-3:01 pm

2 stops10h 46m

San Diego

Sun 9/28

8:39 pm-10:05 am

2 stops11h 26m

$349

Green BaySan Diego

GRB - SAN

GRBSAN

Green Bay Austin-Straubel

Sat 9/20

4:13 pm-8:47 pm

1 stop6h 34m

San Diego

Sat 10/4

11:23 am-10:35 pm

1 stop9h 12m

$354

Green BaySan Diego

GRB - SAN

GRBSAN

Green Bay Austin-Straubel

Fri 9/19

6:00 am-12:27 pm

1 stop8h 27m

$368

Green BaySan Diego

GRB - SAN

GRBSAN

Green Bay Austin-Straubel

Mon 9/15

4:13 pm-8:47 pm

1 stop6h 34m

$368

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/9

Showing 1-10 of 13 results
1
2

Best time to book a flight from Green Bay to San Diego

Have a flexible travel schedule? Discover the best time to fly to San Diego from Green Bay with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Green Bay to San Diego

How far ahead should I book a flight from Green Bay to San Diego?

Use this chart to determine the optimal time to book a round-trip flight from Green Bay to San Diego. Price data was last updated on August 29, 2025.

The best time to book flights from Green Bay to San Diego is 72 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Green Bay to San Diego?

Currently, August is the cheapest month in which you can book a flight from Green Bay to San Diego (average of $286). Flying from Green Bay to San Diego in March is currently the most expensive (average of $366). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from GRB to SAN?

Find hourly flight availability from Green Bay to San Diego. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 11, 2025.

Unlike at noon, when flights are generally more expensive, you can save up to 15% on flights from Green Bay to San Diego by exploring options for tickets in the afternoon.

Reviews of airlines servicing San Diego

Get insights into the airlines that provide service to San Diego. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to San Diego. Reviews last updated September 11, 2025.
Get a feel of what it's like to fly with Delta, United Airlines, and American Airlines from Green Bay to San Diego by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,960 reviews

Crew

8.5

Overall

8.0

Entertainment

7.9

Comfort

7.9

Food

7.3

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Delta
8.0
Very good
7,960 reviews
Delta
8.0
Very good
7,960 reviews

Crew

8.5

Overall

8.0

Entertainment

7.9

Comfort

7.9

Food

7.3

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
United Airlines
7.4
Good
8,937 reviews
Delta
8.0
Very good
7,960 reviews

Crew

8.5

Overall

8.0

Entertainment

7.9

Comfort

7.9

Food

7.3

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,960 reviews

Crew

8.5

Overall

8.0

Entertainment

7.9

Comfort

7.9

Food

7.3

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

Find useful and relevant information for your journey from Green Bay to San Diego. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Green Bay to San Diego?

    There are many flights that can get you from Green Bay to San Diego in 6h 49m. Fly via United Airlines, Delta, or American Airlines to get the fastest option. There are 1753 mi between Green Bay and San Diego. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines flying from Green Bay to San Diego round-trip?

    Currently priced at $263, American Airlines will fly you from Green Bay to San Diego and back. In addition to American Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Delta and United Airlines - these airlines can fly you to your destination from $279 and $314, respectively. You may be able to fly from Green Bay to San Diego for 34% less than the average price by searching for these airlines.

  • Can I find deals for flights from Green Bay to San Diego that include hotel bookings?

    Yes. In addition to deals on Green Bay to San Diego flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Green Bay to San Diego?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Green Bay to San Diego.

  • Can I find deals for business class flights from Green Bay to San Diego?

    Yes. Cheapflights offers flight deals from Green Bay to San Diego by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Green Bay to San Diego?

    Currently, August is the cheapest month in which you can book a flight from Green Bay to San Diego (average of $286). Flying from Green Bay to San Diego in March is currently the most expensive (average of $366). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near San Diego?

Book flights to San Diego if you plan to visit one of these locations
El Cajon
Chula Vista
La Mesa
Poway
Lemon Grove
Coronado
Imperial Beach
National City
Alpine

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Top 3 airlines flying from Green Bay to San Diego

Discover the top 3 airlines that operate flights from Green Bay to San Diego. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$263Average$416FlexibilityNo cancel feeOn-time71%
DeltaCheapest$279Average$372FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$314Average$509FlexibilityNo cancel feeOn-time69%

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