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$170+ Cheap flights from Appleton to San Diego (ATW - 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 8/23. Fares are subject to change and may not be available on all flights or dates of travel.
ATW — SAN
Aug 3 — Aug 101
Sun 8/3
Sun 8/10
1 adult, Economy
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Cheapflights Tip: The best prices from Appleton Intl to San Diego are usually found in October or September, booked 56 days in advance, depart on a Wednesday or Thursday and return on a Tuesday

Cheap flight deals from Appleton to San Diego

Discover tips and strategies to find the most affordable flight options for your journey from Appleton (ATW) 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 July 29, 2025.

Round-trip from

$289
(Delta)

One-way from

$170
(American Airlines)

Popular in

March

Cheapest in

October

Average price

$371
From Appleton Intl to San Diego
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One-way flight from Appleton Intl to San Diego
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Highest demand for flights based on searches. 16% 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 July 2025
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Find flight deals from Appleton to San Diego

Cheapest flights from Appleton to San Diego
Explore the most affordable flight options available from Appleton to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2025.

This Delta deal was found by Cheapflights users on 7/27. 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.
Sat 8/304:12 pmATW - SAN
1 stop6h 32mDelta
Fri 9/511:23 amSAN - ATW
1 stop8h 54mDelta
Deal found 7/27$289
This American Airlines deal was found by Cheapflights users on 7/28. 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 10/76:30 amATW - SAN
2 stops11h 00mAmerican Airlines
Sat 10/113:01 pmSAN - ATW
1 stop6h 42mAmerican Airlines
Deal found 7/28$294
This Mytrip deal was found by Cheapflights users on 7/29. 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.
Sun 9/282:45 pmATW - SAN
2 stops18h 44mMultiple Airlines
Fri 10/36:15 amSAN - ATW
1 stop6h 38mMultiple Airlines
Deal found 7/29$296
This United Airlines deal was found by Cheapflights users on 7/27. 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.
Tue 12/235:35 pmATW - SAN
1 stop7h 16mUnited Airlines
Wed 12/317:00 amSAN - ATW
1 stop7h 58mUnited Airlines
Deal found 7/27$338

Cheapflights Fare Finder

 
Customize your flight search to find flights from Appleton 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 July 29, 2025.
Use the filters below to find and compare flights from Appleton to San Diego that are best for you.

Fly from

Appleton

Fly to

San Diego

Route

Depart

Return

Price

AppletonSan Diego

ATW - SAN

ATWSAN

Appleton Intl

Sat 8/30

4:12 pm-8:44 pm

1 stop6h 32m

San Diego

Fri 9/5

11:23 am-10:17 pm

1 stop8h 54m

$289

AppletonSan Diego

ATW - SAN

ATWSAN

Appleton Intl

Tue 10/7

6:30 am-3:30 pm

2 stops11h 00m

San Diego

Sat 10/11

3:01 pm-11:43 pm

1 stop6h 42m

$294

AppletonSan Diego

ATW - SAN

ATWSAN

Appleton Intl

Sun 9/28

2:45 pm-7:29 am

2 stops18h 44m

San Diego

Fri 10/3

6:15 am-2:53 pm

1 stop6h 38m

$296

AppletonSan Diego

ATW - SAN

ATWSAN

Appleton Intl

Tue 12/23

5:35 pm-10:51 pm

1 stop7h 16m

San Diego

Wed 12/31

7:00 am-4:58 pm

1 stop7h 58m

$338

AppletonSan Diego

ATW - SAN

ATWSAN

Appleton Intl

Sat 8/23

6:01 am-3:25 pm

2 stops11h 24m

$170

AppletonSan Diego

ATW - SAN

ATWSAN

Appleton Intl

Sat 8/23

6:28 am-12:48 pm

1 stop8h 20m

$179

AppletonSan Diego

ATW - SAN

ATWSAN

Appleton Intl

Mon 8/11

7:00 am-5:55 pm

1 stop12h 55m

$233

AppletonSan Diego

ATW - SAN

ATWSAN

Appleton Intl

Tue 8/12

5:29 pm-11:44 pm

2 stops8h 15m

$279

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/28

Best time to book a flight from Appleton to San Diego

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

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

Use this chart to determine the optimal time to book a round-trip flight from Appleton to San Diego. Price data was last updated on July 25, 2025.

Booking 56 days in advance of your planned departure date is, on average, the best time to get cheap flights from Appleton to San Diego. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

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

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 July 29, 2025.
Peruse reviews from past customers who have flown with Delta, United Airlines, and American Airlines from Appleton 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
7,979 reviews

Overall

8.0

Food

7.3

Crew

8.5

Comfort

7.9

Boarding

8.2

Entertainment

7.9

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
7,979 reviews
Delta
8.0
Very good
7,979 reviews

Overall

8.0

Food

7.3

Crew

8.5

Comfort

7.9

Boarding

8.2

Entertainment

7.9

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
8,896 reviews
Delta
8.0
Very good
7,979 reviews

Overall

8.0

Food

7.3

Crew

8.5

Comfort

7.9

Boarding

8.2

Entertainment

7.9

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
7,979 reviews

Overall

8.0

Food

7.3

Crew

8.5

Comfort

7.9

Boarding

8.2

Entertainment

7.9

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 Appleton 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 are the cheapest airlines flying from Appleton to San Diego round-trip?

    Cheapflights users have booked flights from Appleton to San Diego round-trip from $289. Other airlines that can offer you cheap pricing are American Airlines, from $294, and United Airlines, from $338. Delta is priced at 29% lower than the current average price of a flight leaving 3 months from now.

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

    The cheapest airlines for a one-way flight from Appleton to San Diego are American Airlines ($170), Delta ($179), and United Airlines ($279).

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

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

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

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

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

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

    Currently, August is the cheapest month in which you can book a flight from Appleton to San Diego (average of $286). Flying from Appleton 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
Coronado
Poway
National City
Lemon Grove
Imperial Beach
La Mesa
Alpine
Santee

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Top 3 airlines flying from Appleton to San Diego

Discover the top 3 airlines that operate flights from Appleton 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 July 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$241Average$414FlexibilityNo cancel feeOn-time71%
DeltaCheapest$276Average$369FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$288Average$474FlexibilityNo cancel feeOn-time69%

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