$120 Cheap Flights from Appleton (ATW) to San Diego (SAN)

View $120 flight on Sat, Jul 5, 2025Opens in a new window

  • Plan, book, fly with confidence

  • trending down icon
    Be in the know
    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon
    Book smarter
    Save up to 30% on select hotels after you book a flight*
  • one key icon
    Earn twice
    Earn your airline miles on top of our OneKeyCash
    Learn about One Key

Cheap Flights from Appleton to San Diego (ATW-SAN)

Prices were available within the past 7 days and start at $120 for one-way flights and $243 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Fri, Jul 4 - Tue, Jul 8
ATW
Appleton
SAN
San Diego
$243 Roundtrip, found 6 days ago
$243
Roundtrip
found 6 days ago
Select United flight, departing Fri, Jul 4 from Appleton to San Diego, returning Tue, Jul 8, priced at $243 found 6 days ago
United
Fri, Jul 4 - Tue, Jul 8
ATW
Appleton
SAN
San Diego
$249 Roundtrip, found 6 days ago
$249
Roundtrip
found 6 days ago
Select United flight, departing Fri, Jul 4 from Appleton to San Diego, returning Tue, Jul 8, priced at $249 found 6 days ago
American Airlines
Tue, Aug 19 - Tue, Aug 26
ATW
Appleton
SAN
San Diego
$251 Roundtrip, found 5 days ago
$251
Roundtrip
found 5 days ago
Select American Airlines flight, departing Tue, Aug 19 from Appleton to San Diego, returning Tue, Aug 26, priced at $251 found 5 days ago
United
Tue, Aug 19 - Tue, Aug 26
ATW
Appleton
SAN
San Diego
$255 Roundtrip, found 5 days ago
$255
Roundtrip
found 5 days ago
Select United flight, departing Tue, Aug 19 from Appleton to San Diego, returning Tue, Aug 26, priced at $255 found 5 days ago
United
Tue, Aug 19 - Tue, Aug 26
ATW
Appleton
SAN
San Diego
$256 Roundtrip, found 5 days ago
$256
Roundtrip
found 5 days ago
Select United flight, departing Tue, Aug 19 from Appleton to San Diego, returning Tue, Aug 26, priced at $256 found 5 days ago
United
Tue, Aug 19 - Tue, Aug 26
ATW
Appleton
SAN
San Diego
$260 Roundtrip, found 5 days ago
$260
Roundtrip
found 5 days ago
Select United flight, departing Tue, Aug 19 from Appleton to San Diego, returning Tue, Aug 26, priced at $260 found 5 days ago
United
Tue, Aug 19 - Tue, Aug 26
ATW
Appleton
SAN
San Diego
$261 Roundtrip, found 5 days ago
$261
Roundtrip
found 5 days ago
Select United flight, departing Tue, Aug 19 from Appleton to San Diego, returning Tue, Aug 26, priced at $261 found 5 days ago
United
Fri, Jul 4 - Tue, Jul 8
ATW
Appleton
SAN
San Diego
$263 Roundtrip, found 6 days ago
$263
Roundtrip
found 6 days ago
Select United flight, departing Fri, Jul 4 from Appleton to San Diego, returning Tue, Jul 8, priced at $263 found 6 days ago
Delta
Tue, Aug 19 - Tue, Aug 26
ATW
Appleton
SAN
San Diego
$268 Roundtrip, found 5 days ago
$268
Roundtrip
found 5 days ago
Select Delta flight, departing Tue, Aug 19 from Appleton to San Diego, returning Tue, Aug 26, priced at $268 found 5 days ago
American Airlines
Fri, May 30 - Mon, Jun 2
ATW
Appleton
CLD
Carlsbad
$269 Roundtrip, found 2 days ago
$269
Roundtrip
found 2 days ago
Select American Airlines flight, departing Fri, May 30 from Appleton to Carlsbad, returning Mon, Jun 2, priced at $269 found 2 days ago
Flights from Appleton (ATW) to San Diego (SAN)
Origin airport
Appleton Intl.
Destination airport
San Diego Intl.
Airlines serving
American Airlines, Delta, United
Roundtrip price
$243
Distance
1731 mi

Appleton to San Diego Flights

The cheapest times to fly from Appleton to San Diego

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Appleton to San Diego are during the month of July. You can find some of the cheapest flights from Appleton to San Diego with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Appleton to San Diego

Sunday is one of the best days to book for cheap flights from Appleton to San Diego: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Appleton to San Diego

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Appleton to San Diego in 2025. You can also book with separate airlines for your outbound and return journeys, from $120 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Appleton to San Diego flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Appleton to San Diego airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Appleton Intl. Airport (ATW) to San Diego Intl. Airport (SAN) cost?
Discover the latest flight deals from ATW to SAN by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from ATW to SAN?
The cheapest flights from ATW to SAN are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from ATW to SAN?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that’ll take you from ATW to SAN. Sort your results by “Price (lowest to highest)” to snap up a great deal.
How many flights per day from Appleton Intl. Airport (ATW) to San Diego Intl. Airport (SAN)?
There are no daily nonstop flights available from Appleton Intl. Airport (ATW) to San Diego Intl. Airport (SAN). But you can book flights with layovers. Filter your search on Expedia to include one or more stops, and you’ll be on your way before you know it.
What day of the week has the most flights from ATW to SAN?
Friday is typically the busiest day for flights, while Tuesday tends to be the quietest.* Remember that flight schedules can vary based on a number of factors, including the carrier and season.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Appleton Intl. Airport (ATW) to San Diego Intl. Airport (SAN)?
To arrive at San Diego Intl. Airport (SAN) on time, select a flight that leaves from Appleton Intl. Airport (ATW) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this hour.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG’s global flight data platform.
Is it cheaper to buy a plane ticket from Appleton Intl. Airport (ATW) to San Diego Intl. Airport (SAN) last-minute?
Booking your ticket from ATW to SAN right before your journey is generally more expensive. However, if you’re flexible with your departure times and dates, you could bag a cheap last-minute fare.
Is it cheaper to book an ATW to SAN flight and hotel package?
Compared with arranging flights and hotels separately, booking an ATW to SAN flight and hotel package with Expedia could result in significant savings. What’s more, having everything in one easy place will take the hassle out of planning your trip. Just secure your flights and select from our wide range of stays, then customize your trip with other add-ons like tours, car rentals and activities.
Can I cancel or change the date of my flight from Appleton Intl. Airport (ATW) to San Diego Intl. Airport (SAN)?
Typically, you can cancel or modify your ATW to SAN flight. However, there may be additional fees, especially if you made your booking more than 24 hours ago. Double-check your itinerary for the airline’s policies and fees on flight changes, or if you’d like further information, head to our Customer Service portal.

Explore a world of travel with Expedia

*Available to One Key members.