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$182+ 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 10/8. Fares are subject to change and may not be available on all flights or dates of travel.
ATW — SAN
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheapflights Tip: The best prices from Appleton Intl to San Diego are usually found in September or October, 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 September 11, 2025.

Round-trip from

$289
(Delta)

One-way from

$182
(United Airlines)

Popular in

March

Cheapest in

September

Average price

$313
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. 13% potential increase in price ($68 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($17 potential savings vs. average RT price).
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Average for round-trip flights in September 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 September 11, 2025.

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 10/256:25 amATW - SAN
1 stop6h 22mDelta
Fri 10/3112:00 pmSAN - ATW
1 stop7h 35mDelta
Deal found 9/11$289
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.
Wed 11/196:00 amATW - SAN
2 stops11h 16mAmerican Airlines
Wed 12/310:47 amSAN - ATW
1 stop8h 23mAmerican Airlines
Deal found 9/10$294
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.
Sat 10/2512:37 pmATW - SAN
2 stops9h 09mUnited Airlines
Tue 10/286:15 amSAN - ATW
2 stops8h 27mUnited Airlines
Deal found 9/10$299
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/263:25 pmATW - SAN
1 stop20h 32mMultiple Airlines
Fri 10/318:30 amSAN - ATW
1 stop12h 25mMultiple Airlines
Deal found 9/11$304
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.
Tue 10/217:01 amATW - SAN
1 stop9h 31mDelta
Fri 10/3112:00 pmSAN - ATW
1 stop7h 35mDelta
Deal found 9/11$314
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/209:00 amATW - SAN
2 stops40h 50mMultiple Airlines
Fri 10/318:30 amSAN - ATW
1 stop12h 25mMultiple Airlines
Deal found 9/11$321
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 10/256:25 amATW - SAN
1 stop6h 22mDelta
Mon 10/276:25 amSAN - ATW
1 stop7h 12mDelta
Deal found 9/11$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.
Fri 10/312:37 pmATW - SAN
1 stop7h 53mUnited Airlines
Sun 10/56:48 amSAN - ATW
1 stop8h 01mUnited Airlines
Deal found 9/9$335
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/274:16 pmATW - SAN
1 stop6h 31mDelta
Sun 10/510:55 amSAN - ATW
1 stop9h 45mDelta
Deal found 9/10$339
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.
Sat 11/19:53 amATW - SAN
1 stop6h 18mAmerican Airlines
Mon 11/243:08 pmSAN - ATW
1 stop6h 25mAmerican Airlines
Deal found 9/10$344
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.
Wed 11/1212:25 pmATW - SAN
2 stops13h 30mDelta
Wed 11/197:20 amSAN - ATW
1 stop8h 02mDelta
Deal found 9/11$347

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 September 11, 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

Wed 11/19

6:16 am-12:45 pm

1 stop8h 29m

San Diego

Wed 12/3

10:47 am-9:10 pm

1 stop8h 23m

$289

AppletonSan Diego

ATW - SAN

ATWSAN

Appleton Intl

Sat 10/25

12:37 pm-6:30 pm

1 stop7h 53m

San Diego

Tue 10/28

7:00 am-4:42 pm

1 stop7h 42m

$289

AppletonSan Diego

ATW - SAN

ATWSAN

Appleton Intl

Sat 11/1

9:53 am-2:11 pm

1 stop6h 18m

San Diego

Sun 11/23

7:21 am-7:11 pm

2 stops9h 50m

$294

AppletonSan Diego

ATW - SAN

ATWSAN

Appleton Intl

Tue 10/21

7:01 am-2:32 pm

1 stop9h 31m

San Diego

Fri 10/31

12:00 pm-9:35 pm

1 stop7h 35m

$314

AppletonSan Diego

ATW - SAN

ATWSAN

Appleton Intl

Tue 10/21

7:01 am-2:32 pm

1 stop9h 31m

San Diego

Sat 11/1

7:25 am-4:12 pm

1 stop6h 47m

$314

AppletonSan Diego

ATW - SAN

ATWSAN

Appleton Intl

Fri 9/26

11:10 am-6:00 pm

1 stop8h 50m

San Diego

Sun 10/5

10:55 am-10:40 pm

1 stop9h 45m

$314

AppletonSan Diego

ATW - SAN

ATWSAN

Appleton Intl

Sun 11/9

6:24 am-11:06 am

1 stop6h 42m

San Diego

Sun 11/16

7:20 am-5:22 pm

1 stop8h 02m

$314

AppletonSan Diego

ATW - SAN

ATWSAN

Appleton Intl

Tue 10/21

7:01 am-2:32 pm

1 stop9h 31m

San Diego

Tue 10/28

7:25 am-4:47 pm

1 stop7h 22m

$314

AppletonSan Diego

ATW - SAN

ATWSAN

Appleton Intl

Sat 10/25

4:17 pm-8:34 pm

1 stop6h 17m

San Diego

Wed 10/29

6:25 am-3:37 pm

1 stop7h 12m

$314

AppletonSan Diego

ATW - SAN

ATWSAN

Appleton Intl

Wed 10/8

2:45 pm-10:14 pm

1 stop9h 29m

$182

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/9

Showing 1-10 of 14 results
1
2

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 August 29, 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 September 11, 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
7,960 reviews

Entertainment

7.9

Food

7.3

Overall

8.0

Comfort

7.9

Boarding

8.2

Crew

8.5

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

Entertainment

7.9

Food

7.3

Overall

8.0

Comfort

7.9

Boarding

8.2

Crew

8.5

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

Entertainment

7.9

Food

7.3

Overall

8.0

Comfort

7.9

Boarding

8.2

Crew

8.5

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

Entertainment

7.9

Food

7.3

Overall

8.0

Comfort

7.9

Boarding

8.2

Crew

8.5

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.

  • How long is the flight from Appleton to San Diego?

    Airlines like American Airlines and United Airlines fly from Appleton to San Diego in about 7h 53m. The time it takes to get you to your destination can typically vary by up to 36m. The distance from Appleton to San Diego is about 1730 mi. This flight may include one or multiple stops.

  • 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 $239. Other airlines that can offer you cheap pricing are Delta, from $282, and United Airlines, from $288. American Airlines is priced at 43% lower than the current average price of a flight leaving 3 months from now.

  • 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
La Mesa
Poway
Lemon Grove
Coronado
Imperial Beach
National City
Alpine

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Alternative routes for Appleton to San Diego

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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 September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$239Average$430FlexibilityNo cancel feeOn-time71%
DeltaCheapest$282Average$377FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$288Average$492FlexibilityNo cancel feeOn-time69%

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