Cheap Flights from Appleton to San Diego International

Compare Appleton to San Diego International flight deals

Find the cheapest month or even day of the year to fly to San Diego International

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Flight deals from Appleton to San Diego International

Looking for a cheap last-minute deal or the best return flight from Appleton Airport to San Diego International Airport? If you want to travel next month, return fares start from $602. Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Appleton to San Diego International

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Appleton to San Diego International flights are currently cheapest in September.

Appleton to San Diego International: Alternative routes

Compare routes from Appleton to San Diego below. You may find an airport to fly into that's cheaper, faster, or easier than San Diego International.

Appleton to San Diego: Flight information

The things to know before you go.
Cheapest flight found$557
Cheapest month to flySeptember

Finding cheap flights from Appleton to San Diego International: Frequently asked questions

The best price we found for a return flight from Appleton to San Diego International is $557. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from Appleton to San Diego International. But we found flights with one or more stops from $557.
As of July 2026, there are no flights flying from Appleton to San Diego International.
The cheapest month to fly from Appleton to San Diego International is usually September.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Appleton Airport to San Diego International Airport on Saturday, 26 September 2026.
No airlines currently offer direct flights between Appleton Airport and San Diego International Airport. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to San Diego International but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.

We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to San Diego is around 40 days in advance, so don’t leave your flight to the last minute.

Currently, Delta offers the cheapest flight tickets to San Diego International.

Travelling from Appleton Airport (ATW) to San Diego International Airport (SAN): what you need to know

  • The timezone in San Diego is UTC-8, which is two hours behind Appleton.

  • Leave enough time to catch your ATW to SAN flight. A good rule of thumb is to arrive at least two hours before international departures and an hour ahead for domestic flights.

  • Travelling during a peak month such as June? Public holidays and other popular seasons can mean longer lines and delays at security. Play it safe and get there up to four hours before an international flight and two hours before a domestic departure.

  • If you'd like to add a stop to your trip, simply uncheck 'Direct flights only' when searching for your ticket from Appleton Airport to San Diego International Airport. These are the top stopovers between ATW and SAN:

    • Chicago O'Hare International Airport

    • Denver International Airport

    • Minneapolis St Paul Airport

How to find the cheapest flights from Appleton Airport (ATW) to San Diego International Airport (SAN)

  • The cheapest price we've seen for a one-way Appleton Airport to San Diego International Airport flight is $279. A round-trip fare right now is $557. Depending on the availability and when you book, these fares can change.

  • Don't leave things to the last minute. You're more likely to find cheap tickets from ATW to SAN if you book early. Airlines often offer some excellent early bird deals.

  • The 'Whole month' tool shows you the cheapest flights from Appleton Airport to San Diego International Airport across the month. It's an easy way to find a bargain if your travel plans aren't set in stone.

  • Save time searching for cheap flights from ATW to SAN by setting up a Price Alert. You'll get an email or notification on the app when a lower fare becomes available.

  • Tailor your trip using filters. Select your preferred departure and arrival times, airlines and total journey duration. You can also sort your results by 'Best,' 'Cheapest' or 'Fastest' flights from Appleton Airport to San Diego International Airport.

Handy information about Appleton Airport (ATW)

  • ATW's address is West 6390, Challenger Drive, Suite 201.

  • When it comes to the on-time performance of Appleton Airport, data shows 70% of flights arrive within the expected timeframe.

  • To get to Appleton Airport from central Appleton, it'll take around 15 minutes if you're travelling by car. This depends on traffic though. It's approximately 11 kilometres from the airport to the city centre.

  • The journey when using public transport typically takes 45 minutes.

  • Booked an early flight from Appleton Airport to San Diego International Airport? Avoid the stress of rushing to the terminal (and sneak in some extra snooze time) by picking one of these stays close to ATW:

Arriving at San Diego International Airport (SAN)

Getting from San Diego International Airport (SAN) to central San Diego

  • SAN is located at N Harbour Dr.

  • San Diego International Airport to the centre of San Diego has a drive time of about 15 minutes. It's approximately 5 kilometres away.

  • It typically takes 25 minutes to get there by public transport.

When to fly to San Diego International Airport (SAN)

  • It's time to work out your trip dates for your flight from Appleton Airport to San Diego International Airport. August is the busiest month to head to San Diego. If you like a more relaxed vibe, go in March.

  • Lock in your flight from Appleton Airport to San Diego International Airport for August if you'd like to explore San Diego during its warmest month. Expect temperatures of between 16ºC and 27ºC.

  • Search for cheap tickets from ATW to SAN in February if you like travelling in cooler conditions. Temperatures are at their lowest then, ranging between 8ºC and 22ºC on average.

Explore more of the United States

  • Los Angeles is just one of the many cities in the United States waiting to be discovered after you've experienced San Diego. Around 177 kilometres away to the north-west, its best attractions include Hollywood Sign, Universal Studios Hollywood and Hollywood Bowl.

  • Phoenix is another essential stop in the United States and is around 483 kilometres east of San Diego. No trip is complete without seeing Camelback Mountain, Yayoi Kusama Fireflies Infinity Mirror Room and Heard Museum.

Prices shown on this page are estimated lowest prices only. Found in the last 12 days.