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$115+ 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 1/18. Fares are subject to change and may not be available on all flights or dates of travel.
ATW — SAN
Nov 27 — Dec 41
Thu 11/27
Thu 12/4
1 adult, Economy
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1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

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Cheapflights Tip: The best prices from Appleton Intl to San Diego are usually found in September or July, booked 56 days in advance, depart on a Wednesday or Thursday and return on a Tuesday

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 October 28, 2025.

This American Airlines deal was found by Cheapflights users on 10/26. 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 12/46:47 amATW - SAN
1 stop8h 58mAmerican Airlines
Mon 12/83:06 pmSAN - ATW
1 stop6h 28mAmerican Airlines
Deal found 10/26$289
This United Airlines deal was found by Cheapflights users on 10/26. 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 12/45:20 pmATW - SAN
1 stop7h 10mUnited Airlines
Mon 12/88:45 amSAN - ATW
2 stops10h 47mUnited Airlines
Deal found 10/26$311
This American Airlines deal was found by Cheapflights users on 10/27. 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.
Tue 11/186:06 amATW - SAN
1 stop8h 39mAmerican Airlines
Mon 12/13:08 pmSAN - ATW
1 stop6h 25mAmerican Airlines
Deal found 10/27$314
This Kiwi.com deal was found by Cheapflights users on 10/26. 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 11/102:53 pmATW - SAN
2 stops31h 31mMultiple Airlines
Fri 11/148:30 amSAN - ATW
1 stop12h 53mMultiple Airlines
Deal found 10/26$337
This Delta deal was found by Cheapflights users on 10/28. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/135:21 pmATW - SAN
1 stop6h 59mDelta
Mon 11/176:30 amSAN - ATW
1 stop7h 08mDelta
Deal found 10/28$339
This United Airlines deal was found by Cheapflights users on 10/26. 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 12/52:32 pmATW - SAN
2 stops9h 58mUnited Airlines
Mon 12/811:11 amSAN - ATW
2 stops8h 21mUnited Airlines
Deal found 10/26$355
This Delta deal was found by Cheapflights users on 10/27. 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.
Thu 11/135:21 pmATW - SAN
1 stop6h 59mDelta
Sun 11/166:30 amSAN - ATW
1 stop7h 08mDelta
Deal found 10/27$359
This Kiwi.com deal was found by Cheapflights users on 10/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/167:00 amATW - SAN
2 stops29h 49mMultiple Airlines
Sat 11/226:52 pmSAN - ATW
1 stop18h 32mMultiple Airlines
Deal found 10/27$376
This Delta deal was found by Cheapflights users on 10/27. 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.
Mon 11/175:21 pmATW - SAN
1 stop6h 59mDelta
Wed 11/196:30 amSAN - ATW
1 stop7h 08mDelta
Deal found 10/27$377
This American Airlines deal was found by Cheapflights users on 10/27. 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.
Mon 11/173:48 pmATW - SAN
1 stop7h 00mAmerican Airlines
Wed 11/1910:09 amSAN - ATW
2 stops9h 08mAmerican Airlines
Deal found 10/27$382
This American Airlines deal was found by Cheapflights users on 10/26. 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.
Mon 11/106:58 amATW - SAN
1 stop11h 12mAmerican Airlines
Fri 11/149:42 amSAN - ATW
1 stop9h 35mAmerican Airlines
Deal found 10/26$387

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 October 28, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$289
(Delta)

One-way from

$115
(Kiwi.com)

Popular in

March

Cheapest in

September

Average price

$397
Provider with most accurate pricing for Appleton Intl-San Diego flight deals.
Search Deals
Provider most trusted by Cheapflights users for Appleton Intl-San Diego flights.
Search Deals
From Appleton Intl to San Diego
Search Deals
One-way flight from Appleton Intl to San Diego
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($63 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($17 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
Search Deals

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 October 28, 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 1/17

4:20 pm-8:53 pm

1 stop6h 33m

San Diego

Tue 1/27

6:15 am-3:40 pm

1 stop7h 25m

$289

AppletonSan Diego

ATW - SAN

ATWSAN

Appleton Intl

Fri 12/5

9:39 am-2:16 pm

1 stop6h 37m

San Diego

Mon 12/8

3:06 pm-11:34 pm

1 stop6h 28m

$289

AppletonSan Diego

ATW - SAN

ATWSAN

Appleton Intl

Sat 1/17

4:20 pm-8:53 pm

1 stop6h 33m

San Diego

Mon 1/26

11:58 am-9:29 pm

1 stop7h 31m

$289

AppletonSan Diego

ATW - SAN

ATWSAN

Appleton Intl

Tue 4/14

4:05 pm-8:21 pm

1 stop6h 16m

San Diego

Sat 4/18

6:15 am-4:37 pm

1 stop8h 22m

$289

AppletonSan Diego

ATW - SAN

ATWSAN

Appleton Intl

Tue 1/20

3:39 pm-11:42 pm

2 stops10h 03m

San Diego

Tue 1/27

6:30 am-4:48 pm

2 stops8h 18m

$299

AppletonSan Diego

ATW - SAN

ATWSAN

Appleton Intl

Tue 1/13

6:15 am-1:50 pm

1 stop9h 35m

San Diego

Sun 1/25

11:58 am-9:29 pm

1 stop7h 31m

$324

AppletonSan Diego

ATW - SAN

ATWSAN

Appleton Intl

Sat 4/25

4:05 pm-8:21 pm

1 stop6h 16m

San Diego

Wed 4/29

6:20 am-3:33 pm

1 stop7h 13m

$333

AppletonSan Diego

ATW - SAN

ATWSAN

Appleton Intl

Thu 11/13

5:21 pm-10:20 pm

1 stop6h 59m

San Diego

Mon 11/17

6:30 am-3:38 pm

1 stop7h 08m

$339

AppletonSan Diego

ATW - SAN

ATWSAN

Appleton Intl

Sat 2/7

6:30 am-6:31 pm

2 stops14h 01m

San Diego

Thu 2/12

3:23 pm-11:22 pm

1 stop5h 59m

$344

AppletonSan Diego

ATW - SAN

ATWSAN

Appleton Intl

Wed 1/14

6:15 am-10:47 pm

2 stops18h 32m

San Diego

Fri 1/23

11:58 am-9:29 pm

1 stop7h 31m

$347

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/26

Showing 1-10 of 21 results
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Compare providers for flights from Appleton to San Diego

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Appleton to San Diego in October.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Appleton-San Diego flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Appleton-San Diego flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Appleton-San Diego flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Appleton-San Diego flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Appleton-San Diego flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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 October 24, 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, November is the cheapest month in which you can book a flight from Appleton to San Diego (average of $152). Flying from Appleton to San Diego in March is currently the most expensive (average of $224). 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 October 28, 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
7.9
Good
7,994 reviews

Boarding

8.2

Overall

7.9

Comfort

7.9

Food

7.3

Entertainment

7.9

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
7.9
Good
7,994 reviews
Delta
7.9
Good
7,994 reviews

Boarding

8.2

Overall

7.9

Comfort

7.9

Food

7.3

Entertainment

7.9

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
9,001 reviews
Delta
7.9
Good
7,994 reviews

Boarding

8.2

Overall

7.9

Comfort

7.9

Food

7.3

Entertainment

7.9

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
11,032 reviews
Delta
7.9
Good
7,994 reviews

Boarding

8.2

Overall

7.9

Comfort

7.9

Food

7.3

Entertainment

7.9

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 Delta, American Airlines, and United Airlines fly from Appleton to San Diego in about 6h 33m. The time it takes to get you to your destination can typically vary by up to 3h 30m. 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 $245. Other airlines that can offer you cheap pricing are Delta, from $282, and United Airlines, from $288. American Airlines is priced at 42% 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, November is the cheapest month in which you can book a flight from Appleton to San Diego (average of $152). Flying from Appleton to San Diego in March is currently the most expensive (average of $224). 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
La Mesa
Poway
Lemon Grove
National City

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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 October 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$245Average$432FlexibilityNo cancel feeOn-time71%
DeltaCheapest$282Average$379FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$288Average$467FlexibilityNo cancel feeOn-time69%

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