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$139+ 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 4/4. Fares are subject to change and may not be available on all flights or dates of travel.
ATW — SAN
feb. 25 — mar. 41
mié. 2/25
mié. 3/4
1 adult, Economy
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Cheap 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 enero 26, 2026.

This Delta deal was found by Cheapflights users on 1/24. 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.
mié. 4/227:00 am
ATW
-
SAN
1 stop9h 20m
Delta
mar. 4/2811:58 am
SAN
-
ATW
1 stop7h 21m
Delta
Deal found 1/24$309
This United Airlines deal was found by Cheapflights users on 1/24. 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.
sáb. 2/212:39 pm
ATW
-
SAN
2 stops11h 01m
United Airlines
mar. 2/2411:30 am
SAN
-
ATW
1 stop7h 26m
United Airlines
Deal found 1/24$314
This American Airlines deal was found by Cheapflights users on 1/25. 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.
jue. 3/124:05 pm
ATW
-
SAN
1 stop8h 54m
American Airlines
lun. 3/161:37 pm
SAN
-
ATW
1 stop8h 22m
American Airlines
Deal found 1/25$322
This American Airlines deal was found by Cheapflights users on 1/24. 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.
sáb. 2/211:25 pm
ATW
-
SAN
1 stop8h 55m
American Airlines
mar. 2/241:32 pm
SAN
-
ATW
1 stop7h 52m
American Airlines
Deal found 1/24$323
This American Airlines deal was found by Cheapflights users on 1/24. 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.
mié. 2/181:25 pm
ATW
-
SAN
1 stop11h 09m
American Airlines
mar. 2/243:19 pm
SAN
-
ATW
1 stop15h 47m
American Airlines
Deal found 1/24$325
This American Airlines deal was found by Cheapflights users on 1/25. 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.
mar. 8/412:39 pm
ATW
-
SAN
2 stops10h 57m
American Airlines
jue. 8/132:52 pm
SAN
-
ATW
1 stop6h 35m
American Airlines
Deal found 1/25$327
This Delta deal was found by Cheapflights users on 1/24. 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.
mié. 4/224:20 pm
ATW
-
SAN
1 stop6h 20m
Delta
vie. 5/111:58 am
SAN
-
ATW
1 stop7h 21m
Delta
Deal found 1/24$334
This American Airlines deal was found by Cheapflights users on 1/25. 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.
jue. 4/25:40 am
ATW
-
SAN
1 stop10h 43m
American Airlines
mar. 4/73:07 pm
SAN
-
ATW
1 stop17h 07m
American Airlines
Deal found 1/25$335
This American Airlines deal was found by Cheapflights users on 1/24. 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.
mar. 2/107:15 am
ATW
-
SAN
2 stops10h 42m
American Airlines
dom. 2/154:45 pm
SAN
-
ATW
1 stop5h 40m
American Airlines
Deal found 1/24$339
This United Airlines deal was found by Cheapflights users on 1/25. 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.
sáb. 4/1812:34 pm
ATW
-
SAN
1 stop8h 19m
United Airlines
sáb. 4/256:32 am
SAN
-
ATW
2 stops8h 16m
United Airlines
Deal found 1/25$341
This Kiwi.com deal was found by Cheapflights users on 1/24. 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.
lun. 3/238:40 pm
ATW
-
SAN
2 stops26h 34m
Multiple Airlines
mié. 4/292:47 pm
SAN
-
ATW
1 stop29h 48m
Multiple Airlines
Deal found 1/24$345

Find 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 enero 26, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$309
(Delta)

One-way from

$139
(Kiwi.com)

Popular in

March

Cheapest in

September

Average price

$430
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. 8% potential increase in price ($40 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($17 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
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 enero 26, 2026.
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

sáb. 3/14

5:23 pm-10:40 pm

1 stop7h 17m

San Diego

mié. 3/18

10:30 pm-8:21 am

1 stop7h 51m

$309

AppletonSan Diego

ATW - SAN

ATWSAN

Appleton Intl

vie. 4/24

6:18 pm-11:06 pm

1 stop6h 48m

San Diego

mié. 4/29

6:15 am-5:38 pm

1 stop9h 23m

$309

AppletonSan Diego

ATW - SAN

ATWSAN

Appleton Intl

mié. 4/22

7:00 am-2:20 pm

1 stop9h 20m

San Diego

mié. 4/29

6:15 am-5:38 pm

1 stop9h 23m

$309

AppletonSan Diego

ATW - SAN

ATWSAN

Appleton Intl

sáb. 4/18

7:00 am-2:20 pm

1 stop9h 20m

San Diego

sáb. 4/25

6:15 am-5:38 pm

1 stop9h 23m

$309

AppletonSan Diego

ATW - SAN

ATWSAN

Appleton Intl

sáb. 2/21

3:42 pm-11:40 pm

2 stops9h 58m

San Diego

mar. 2/24

11:30 am-8:56 pm

1 stop7h 26m

$314

AppletonSan Diego

ATW - SAN

ATWSAN

Appleton Intl

sáb. 3/7

5:23 pm-10:40 pm

1 stop7h 17m

San Diego

mar. 3/10

6:15 am-4:44 pm

2 stops8h 29m

$314

AppletonSan Diego

ATW - SAN

ATWSAN

Appleton Intl

lun. 3/23

4:24 pm-11:40 pm

1 stop9h 16m

San Diego

vie. 5/1

11:58 am-9:19 pm

1 stop7h 21m

$334

AppletonSan Diego

ATW - SAN

ATWSAN

Appleton Intl

jue. 4/23

6:18 pm-11:06 pm

1 stop6h 48m

San Diego

vie. 5/1

11:58 am-9:19 pm

1 stop7h 21m

$334

AppletonSan Diego

ATW - SAN

ATWSAN

Appleton Intl

jue. 4/2

5:40 am-2:23 pm

1 stop10h 43m

San Diego

mar. 4/7

3:07 pm-10:14 am

1 stop17h 07m

$335

AppletonSan Diego

ATW - SAN

ATWSAN

Appleton Intl

vie. 2/20

1:25 pm-9:43 pm

1 stop10h 18m

San Diego

mié. 2/25

3:19 pm-9:06 am

1 stop15h 47m

$335

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/25

Showing 1-10 of 15 results
1
2

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 January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice 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 FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Appleton-San Diego flight deals on Cheapflights vs. FlightHub >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 FlightHub the most. FlightHub 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 January 23, 2026.

Booking 74 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 $168). Flying from Appleton to San Diego in December is currently the most expensive (average of $256). 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 enero 26, 2026.
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
8,111 reviews

Crew

8.5

Boarding

8.1

Food

7.2

Entertainment

7.8

Overall

7.9

Comfort

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
7.9
Good
8,111 reviews
Delta
7.9
Good
8,111 reviews

Crew

8.5

Boarding

8.1

Food

7.2

Entertainment

7.8

Overall

7.9

Comfort

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
9,199 reviews
Delta
7.9
Good
8,111 reviews

Crew

8.5

Boarding

8.1

Food

7.2

Entertainment

7.8

Overall

7.9

Comfort

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
11,189 reviews
Delta
7.9
Good
8,111 reviews

Crew

8.5

Boarding

8.1

Food

7.2

Entertainment

7.8

Overall

7.9

Comfort

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.

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

    Airlines like United Airlines and Delta fly from Appleton to San Diego in about 6h 48m. The time it takes to get you to your destination can typically vary by up to 29m. 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 $264. Other airlines that can offer you cheap pricing are Delta, from $279, and United Airlines, from $288. American Airlines is priced at 38% 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 ($114), United Airlines ($159), and Delta ($169).

  • 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 $168). Flying from Appleton to San Diego in December is currently the most expensive (average of $256). 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
National City
Coronado
La Mesa
Poway
Julian
Lemon Grove

Browse thousands of different options on Cheapflights for your next trip

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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 enero 26, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$264Average$433FlexibilityNo cancel feeOn-time71%
DeltaCheapest$279Average$378FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$288Average$448FlexibilityNo cancel feeOn-time69%

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