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Cheap flights from Appleton to San Diego from $173

1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Appleton to San Diego

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
5:29 pm - 3:58 pmATW  Appleton Intl-SAN San Diego
24h 29m1 stop Denver Intl
Multiple Airlines Logo
7:33 pm - 10:44 pmSAN  San Diego-ATW Appleton Intl
25h 11m1 stop Phoenix Sky Harbor Intl
$254Multiple Airlines
Fri, Oct 30 - Wed, Nov 4
Multiple Airlines Logo
5:29 pm - 3:58 pmATW  Appleton Intl-SAN San Diego
24h 29m1 stop Denver Intl
Multiple Airlines Logo
7:33 pm - 10:44 pmSAN  San Diego-ATW Appleton Intl
25h 11m1 stop Phoenix Sky Harbor Intl
$265Multiple Airlines
Fri, Oct 30 - Wed, Nov 4
Multiple Airlines Logo
5:29 pm - 3:58 pmATW  Appleton Intl-SAN San Diego
24h 29m1 stop Denver Intl
Multiple Airlines Logo
7:33 pm - 10:44 pmSAN  San Diego-ATW Appleton Intl
25h 11m1 stop Phoenix Sky Harbor Intl
$273Multiple Airlines
Fri, Oct 30 - Wed, Nov 4
Delta Logo
6:05 am - 10:48 amATW  Appleton Intl-SAN San Diego
6h 43m1 stop Minneapolis St Paul
Delta Logo
12:00 pm - 9:34 pmSAN  San Diego-ATW Appleton Intl
7h 34m1 stop Minneapolis St Paul
$323Delta
Sat, Oct 24 - Sat, Oct 31
American Airlines Logo
6:14 pm - 11:19 pmATW  Appleton Intl-SAN San Diego
7h 05m1 stop Chicago O'Hare Intl
American Airlines Logo
12:40 pm - 10:39 pmSAN  San Diego-ATW Appleton Intl
7h 59m1 stop Dallas/Fort Worth
$323American Airlines
Sat, Oct 24 - Sat, Oct 31
American Airlines Logo
5:29 am - 12:34 pmATW  Appleton Intl-SAN San Diego
9h 05m1 stop Chicago O'Hare Intl
American Airlines Logo
7:41 am - 5:43 pmSAN  San Diego-ATW Appleton Intl
8h 02m1 stop Chicago O'Hare Intl
$323American Airlines
Wed, Oct 28 - Tue, Nov 3
American Airlines Logo
6:18 pm - 11:54 pmATW  Appleton Intl-SAN San Diego
7h 36m1 stop Chicago O'Hare Intl
American Airlines Logo
1:29 pm - 12:07 amSAN  San Diego-ATW Appleton Intl
8h 38m1 stop Chicago O'Hare Intl
$323American Airlines
Wed, Dec 2 - Tue, Dec 8
Delta Logo
11:10 am - 6:27 pmATW  Appleton Intl-SAN San Diego
9h 17m1 stop Detroit Metropolitan Wayne County
Delta Logo
6:15 am - 4:37 pmSAN  San Diego-ATW Appleton Intl
8h 22m1 stop Detroit Metropolitan Wayne County
$341Delta
Sat, Jan 30 - Fri, Apr 9
United Airlines Logo
9:45 am - 5:27 pmATW  Appleton Intl-SAN San Diego
9h 42m2 stops Chicago O'Hare Intl Los Angeles
United Airlines Logo
6:50 am - 3:55 pmSAN  San Diego-ATW Appleton Intl
7h 05m1 stop Chicago O'Hare Intl
$348United Airlines
Sat, Jan 23 - Sat, Jan 30
United Airlines Logo
12:28 pm - 8:08 pmATW  Appleton Intl-SAN San Diego
9h 40m2 stops Chicago O'Hare Intl Los Angeles
United Airlines Logo
10:55 am - 9:08 pmSAN  San Diego-ATW Appleton Intl
8h 13m1 stop Denver Intl
$348United Airlines
Sat, Oct 17 - Sat, Oct 24

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United Airlines flights from Appleton to San Diego

Our best United Airlines deals on Appleton to San Diego flight tickets
United Airlines
Oct 17
ATW12:28 pmAppleton Intl
9h 40m
2 stops
SAN8:08 pmSan Diego
Oct 24
SAN10:55 amSan Diego
8h 13m
1 stop
ATW9:08 pmAppleton Intl
$348
United Airlines
Oct 24
ATW10:00 amAppleton Intl
9h 05m
2 stops
SAN5:05 pmSan Diego
Oct 31
SAN11:21 amSan Diego
8h 13m
2 stops
ATW9:34 pmAppleton Intl
$353
United Airlines
Nov 21
ATW12:50 pmAppleton Intl
7h 49m
1 stop
SAN6:39 pmSan Diego
Nov 24
SAN10:30 pmSan Diego
7h 13m
1 stop
ATW7:43 amAppleton Intl
$362

Delta flights from Appleton to San Diego

Our best Delta deals on Appleton to San Diego flight tickets
Delta
Jan 20
ATW11:10 amAppleton Intl
9h 17m
1 stop
SAN6:27 pmSan Diego
Feb 2
SAN6:15 amSan Diego
8h 22m
1 stop
ATW4:37 pmAppleton Intl
$343
Delta
Dec 10
ATW5:39 pmAppleton Intl
8h 20m
1 stop
SAN11:59 pmSan Diego
Dec 14
SAN6:15 amSan Diego
9h 52m
1 stop
ATW6:07 pmAppleton Intl
$359
Delta
Jan 20
ATW11:10 amAppleton Intl
9h 17m
1 stop
SAN6:27 pmSan Diego
Feb 1
SAN6:20 amSan Diego
8h 21m
1 stop
ATW4:41 pmAppleton Intl
$361

momondo Fare Finder

 
Use the filters below to find and compare flights from Appleton to San Diego that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

AppletonSan Diego

ATW Appleton Intl - SAN San Diego

ATWSAN

Appleton Intl

Fri 10/30

5:29 pm-3:58 pm

1 stop24h 29m

San Diego

Wed 11/4

7:33 pm-10:44 pm

1 stop25h 11m

$254

AppletonSan Diego

ATW Appleton Intl - SAN San Diego

ATWSAN

Appleton Intl

Fri 10/30

5:29 pm-3:58 pm

1 stop24h 29m

San Diego

Wed 11/4

7:33 pm-10:44 pm

1 stop25h 11m

$265

AppletonSan Diego

ATW Appleton Intl - SAN San Diego

ATWSAN

Appleton Intl

Fri 10/30

5:29 pm-3:58 pm

1 stop24h 29m

San Diego

Wed 11/4

7:33 pm-10:44 pm

1 stop25h 11m

$273
Quickest round-trip

AppletonSan Diego

ATW Appleton Intl - SAN San Diego

ATWSAN

Appleton Intl

Sat 10/24

6:05 am-10:48 am

1 stop6h 43m

San Diego

Sat 10/31

12:00 pm-9:34 pm

1 stop7h 34m

$323

AppletonSan Diego

ATW Appleton Intl - SAN San Diego

ATWSAN

Appleton Intl

Sat 10/24

6:14 pm-11:19 pm

1 stop7h 05m

San Diego

Sat 10/31

12:40 pm-10:39 pm

1 stop7h 59m

$323

AppletonSan Diego

ATW Appleton Intl - SAN San Diego

ATWSAN

Appleton Intl

Wed 10/28

5:29 am-12:34 pm

1 stop9h 05m

San Diego

Tue 11/3

7:41 am-5:43 pm

1 stop8h 02m

$323

AppletonSan Diego

ATW Appleton Intl - SAN San Diego

ATWSAN

Appleton Intl

Wed 12/2

6:18 pm-11:54 pm

1 stop7h 36m

San Diego

Tue 12/8

1:29 pm-12:07 am

1 stop8h 38m

$323

AppletonSan Diego

ATW Appleton Intl - SAN San Diego

ATWSAN

Appleton Intl

Sat 1/30

11:10 am-6:27 pm

1 stop9h 17m

San Diego

Fri 4/9

6:15 am-4:37 pm

1 stop8h 22m

$341

AppletonSan Diego

ATW Appleton Intl - SAN San Diego

ATWSAN

Appleton Intl

Sat 1/23

9:45 am-5:27 pm

2 stops9h 42m

San Diego

Sat 1/30

6:50 am-3:55 pm

1 stop7h 05m

$348

AppletonSan Diego

ATW Appleton Intl - SAN San Diego

ATWSAN

Appleton Intl

Sat 10/17

12:28 pm-8:08 pm

2 stops9h 40m

San Diego

Sat 10/24

10:55 am-9:08 pm

1 stop8h 13m

$348

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to San Diego from

How to get the cheapest flight ticket from Appleton to San Diego

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Appleton and San Diego?

Prices are currently low for flights on this route.

Typical prices usually range from $335 to $456.
The lowest price recently found on this route was $254.

What is the cheapest month to fly to San Diego?

If you are unable to visit San Diego during the month of April, then departing from Appleton during the month September is also very affordable. Most momondo users find prices during this month for around $375.

How far in advance should I book a flight from Appleton to San Diego?

You are more likely to see cheaper flights to San Diego from Appleton when booking weeks ahead of your departure date. In general, you can expect to find flights to San Diego for around $451 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Diego from Appleton for as low as $344 on momondo.

How have Appleton to San Diego flight prices changed over time?

As of September 2026, prices for Appleton to San Diego flights are approximately 23% more expensive when compared to flights at the same time last year.

When to book flights from Appleton to San Diego

Are you open to changing your travel dates? Check out the ideal times to fly from Appleton to San Diego according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Appleton to San Diego (ATW to SAN) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Appleton to San Diego

Best Price Found

$173

Fastest flight time

6h 18m

Direct flights

None
The best one-way flight to San Diego from Appleton in the past 72 hours is $173. The best round-trip flight deal from Appleton to San Diego found on momondo in the last 72 hours is $254.
The fastest flight from Appleton to San Diego takes 6h 18m
There are no direct flights from Appleton to San Diego. There are no popular flight routes from Appleton to San Diego.
Search flight deals

Frequently asked questions about flying from Appleton to San Diego

  • How far is Appleton Intl to San Diego by plane?

    The straight-line distance from Appleton Intl to San Diego is 1733.4 mi. 6h 18m is a normal flight duration for this route.

  • When did momondo last update prices for flights from Appleton Intl Airport to San Diego Airport?

    Prices for flights from Appleton Intl Airport to San Diego Airport refresh daily.

  • How many operators does momondo search for flights from Appleton Intl Airport to San Diego Airport?

  • How old do you have to be to fly from Appleton Intl Airport to San Diego Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Appleton Intl Airport to San Diego Airport.

  • What documentation or ID do you need to fly to San Diego Airport?

    The travel and health documents you'll need for your trip to San Diego Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at San Diego Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from Appleton to San Diego?

Best airlines flying from Appleton to San Diego

Compare and see reviews for airlines that fly from Appleton to San Diego with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $288Free CancellationRating
7.4
10,194 reviews
Search United Airlines flights
DeltaPriceFrom $288Free CancellationRating
7.8
8,554 reviews
Search Delta flights
American AirlinesPriceFrom $330Free CancellationRating
7.1
12,045 reviews
Search American Airlines flights

Traveling to a place near San Diego?

Book flights to San Diego if you plan to visit one of these locations
Chula Vista
El Cajon
Coronado
National City
La Mesa
Julian
Poway
San Ysidro
Imperial Beach
Santee
Alpine
Lemon Grove
Borrego Springs

Why use momondo?

Why should I use momondo to find a flight deal from Appleton to San Diego?

It is quick and easy to find Appleton to San Diego flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to San Diego that suits you.

Can I find flights from Appleton to San Diego with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Appleton to San Diego flights to just show those with flexible booking policies.

How can momondo help me find flights from Appleton to San Diego?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Appleton to San Diego.

I’m not ready to book a flight from Appleton to San Diego right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Appleton to San Diego now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to San Diego and let you know when they change.

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