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$115+ Cheap flights from Oshkosh, WI to San Diego (SAN)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/30. Fares are subject to change and may not be available on all flights or dates of travel.
MKE — SAN
Apr 2 — Apr 91
Wed 4/2
Wed 4/9
1 adult, Economy
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Cheapflights Tip: The best prices from Oshkosh to San Diego are usually found in August or October, booked 56 days in advance, depart on a Wednesday or Thursday and return on a Tuesday

Cheap flight deals from Oshkosh to San Diego

Keep the following information in mind while searching for Oshkosh to San Diego flight deals. Data was last updated March 28, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$229
(American Airlines)

One-way from

$115
(American Airlines)

Popular in

March

Cheapest in

August

Average price

$620
Provider with most accurate pricing for Appleton Intl-San Diego flight deals.
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Provider most trusted by Cheapflights users for Appleton Intl-San Diego flights.
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From Oshkosh to San Diego
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One-way flight from Oshkosh to San Diego
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Highest demand for flights based on searches. 15% potential increase in price ($78 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($19 potential savings vs. average RT price).
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Average for round-trip flights in March 2025
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Find flight deals from Oshkosh to San Diego

Cheapest flights from Oshkosh to San Diego
Explore the most affordable flight options available from Oshkosh to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 28, 2025.

This American Airlines deal was found by Cheapflights users on 3/27. 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.
Wed 4/306:00 amATW - SAN
1 stop8h 43mAmerican Airlines
Sat 5/106:15 amSAN - ATW
1 stop7h 52mAmerican Airlines
Deal found 3/27$229
This Delta deal was found by Cheapflights users on 3/27. 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.
Wed 8/274:10 pmATW - SAN
1 stop6h 07mDelta
Wed 9/311:00 amSAN - ATW
1 stop8h 59mDelta
Deal found 3/27$277
This Mytrip deal was found by Cheapflights users on 3/27. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/77:30 amATW - SAN
2 stops26h 30mMultiple Airlines
Wed 5/216:15 amSAN - ATW
1 stop7h 11mMultiple Airlines
Deal found 3/27$307
This United Airlines deal was found by Cheapflights users on 3/27. 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.
Sat 4/262:10 pmATW - SAN
2 stops11h 49mUnited Airlines
Tue 4/297:35 pmSAN - ATW
3 stops14h 29mUnited Airlines
Deal found 3/27$389

Cheapflights Fare Finder

Customize your flight search to find flights from Oshkosh 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 March 28, 2025.
Use the filters below to find and compare flights from Oshkosh to San Diego that are best for you.

Fly from

Oshkosh

Fly to

San Diego

Route

Depart

Return

Price

AppletonSan Diego

ATW - SAN

ATWSAN

Appleton Intl

Wed 4/30

6:00 am-12:43 pm

1 stop8h 43m

San Diego

Sat 5/10

6:15 am-4:07 pm

1 stop7h 52m

$229

AppletonSan Diego

ATW - SAN

ATWSAN

Appleton Intl

Wed 8/27

4:10 pm-8:17 pm

1 stop6h 07m

San Diego

Wed 9/3

11:00 am-9:59 pm

1 stop8h 59m

$277

AppletonSan Diego

ATW - SAN

ATWSAN

Appleton Intl

Wed 5/7

7:30 am-8:00 am

2 stops26h 30m

San Diego

Wed 5/21

6:15 am-3:26 pm

1 stop7h 11m

$307

AppletonSan Diego

ATW - SAN

ATWSAN

Appleton Intl

Wed 8/27

3:45 pm-10:28 pm

2 stops8h 43m

San Diego

Mon 9/1

10:50 am-8:58 pm

2 stops8h 08m

$359

AppletonSan Diego

ATW - SAN

ATWSAN

Appleton Intl

Wed 4/30

6:00 am-12:43 pm

1 stop8h 43m

$115

AppletonSan Diego

ATW - SAN

ATWSAN

Appleton Intl

Wed 4/23

3:49 pm-11:59 pm

2 stops10h 10m

$165

AppletonSan Diego

ATW - SAN

ATWSAN

Appleton Intl

Sat 7/5

7:00 am-2:36 pm

1 stop9h 36m

$200

AppletonSan Diego

ATW - SAN

ATWSAN

Appleton Intl

Wed 4/30

6:47 pm-12:42 am

3 stops31h 55m

$206

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/27

Best time to book a flight from Oshkosh to San Diego

Have a flexible travel schedule? Discover the best time to fly to San Diego from Oshkosh 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 Oshkosh to San Diego

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

Use this chart to determine the optimal time to book a round-trip flight from Oshkosh to San Diego. Price data was last updated on March 21, 2025.

To ensure you get the cheapest price possible for a flight from Oshkosh to San Diego, you should look to book at least 56 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, August is the cheapest month in which you can book a flight from Oshkosh to San Diego (average of $286). Flying from Oshkosh 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 OS9 to SAN?

Find hourly flight availability from Oshkosh 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 March 28, 2025.

When flying from Oshkosh to San Diego, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

What is the cheapest day to fly from Oshkosh to San Diego?

Use this chart to determine the cheapest time to fly round-trip from Oshkosh to San Diego. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Oshkosh to San Diego flight should consider departing on Saturday afternoons when fares are most often at their lowest. Monday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Rainfall in San Diego by month

Plan your trip to San Diego by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in San Diego ranges from 0.0 - 2.3 inches per month. February is typically the wettest month, when rainfall can reach 2.3 in. July is typically the driest time to visit San Diego when rainfall is around 0.0 in.

Temperature in San Diego by month

Plan your trip to San Diego by taking into account the average temperature totals by month.

If weather is an important factor for your trip to San Diego, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 71.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 57.2 F).

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 March 28, 2025.
Peruse reviews from past customers who have flown with Delta, United Airlines and American Airlines from Oshkosh to San Diego to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,897 reviews

Overall

8.0

Comfort

8.0

Entertainment

7.9

Food

7.3

Crew

8.5

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
7,897 reviews
Delta
8.0
Very good
7,897 reviews

Overall

8.0

Comfort

8.0

Entertainment

7.9

Food

7.3

Crew

8.5

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
8,603 reviews
Delta
8.0
Very good
7,897 reviews

Overall

8.0

Comfort

8.0

Entertainment

7.9

Food

7.3

Crew

8.5

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
7,897 reviews

Overall

8.0

Comfort

8.0

Entertainment

7.9

Food

7.3

Crew

8.5

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 Oshkosh to San Diego. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to San Diego from Oshkosh?

    For a flight from Oshkosh to San Diego, you will be flying into San Diego. San Diego (SAN) is just 2.6 mi from the center of the city. San Diego is the only San Diego airport and it handles 0 inbound flights from Oshkosh per day. 6 airlines have flights to San Diego from Oshkosh on a regular basis.

  • What are the cheapest airlines to fly from Oshkosh to San Diego one-way?

    For one-way options, check prices for American Airlines. According to our data, you can fly for as low as $115. Users have also found prices from $165 and $200 on United Airlines and Delta, respectively.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Oshkosh 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 Oshkosh to San Diego?

    Currently, August is the cheapest month in which you can book a flight from Oshkosh to San Diego (average of $286). Flying from Oshkosh 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 Oshkosh?

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

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Top 6 airlines flying from Oshkosh to San Diego

Discover the top 6 airlines that operate flights from Oshkosh 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 March 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$109Average$231FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$161Average$252FlexibilityNo cancel feeOn-time65%
American AirlinesCheapest$198Average$426FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$227Average$457FlexibilityNo cancel feeOn-time69%
DeltaCheapest$231Average$398FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$336Average$455FlexibilityNo cancel feeOn-time63%
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