$232 Cheap Flights from Lafayette (LAF) to San Diego (SAN)

View $232 flight on Sat, Nov 15, 2025Opens in a new window

Popular airlines from Lafayette, IN (LAF-Purdue University) to San Diego Intl. Airport (SAN)

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Cheap Flights from Lafayette to San Diego (LAF-SAN)

Prices were available within the past 7 days and start at $232 for one-way flights and $284 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Fri, Nov 7 - Mon, Nov 10
LAF
Lafayette
SAN
San Diego
$284 Roundtrip, found 6 hours ago
$284
Roundtrip
found 6 hours ago
Select United flight, departing Fri, Nov 7 from Lafayette to San Diego, returning Mon, Nov 10, priced at $284 found 6 hours ago
United
Thu, Oct 16 - Wed, Oct 22
LAF
Lafayette
SAN
San Diego
$290 Roundtrip, found 2 days ago
$290
Roundtrip
found 2 days ago
Select United flight, departing Thu, Oct 16 from Lafayette to San Diego, returning Wed, Oct 22, priced at $290 found 2 days ago
United
Fri, Nov 7 - Mon, Nov 10
LAF
Lafayette
SAN
San Diego
$294 Roundtrip, found 6 hours ago
$294
Roundtrip
found 6 hours ago
Select United flight, departing Fri, Nov 7 from Lafayette to San Diego, returning Mon, Nov 10, priced at $294 found 6 hours ago
United
Thu, Oct 16 - Wed, Oct 22
LAF
Lafayette
SAN
San Diego
$296 Roundtrip, found 2 days ago
$296
Roundtrip
found 2 days ago
Select United flight, departing Thu, Oct 16 from Lafayette to San Diego, returning Wed, Oct 22, priced at $296 found 2 days ago
United
Fri, Dec 12 - Wed, Dec 17
LAF
Lafayette
SAN
San Diego
$299 Roundtrip, found 2 days ago
$299
Roundtrip
found 2 days ago
Select United flight, departing Fri, Dec 12 from Lafayette to San Diego, returning Wed, Dec 17, priced at $299 found 2 days ago
United
Wed, Nov 12 - Tue, Dec 2
LAF
Lafayette
SAN
San Diego
$300 Roundtrip, found 16 hours ago
$300
Roundtrip
found 16 hours ago
Select United flight, departing Wed, Nov 12 from Lafayette to San Diego, returning Tue, Dec 2, priced at $300 found 16 hours ago
United
Fri, Nov 7 - Mon, Nov 10
LAF
Lafayette
SAN
San Diego
$302 Roundtrip, found 6 hours ago
$302
Roundtrip
found 6 hours ago
Select United flight, departing Fri, Nov 7 from Lafayette to San Diego, returning Mon, Nov 10, priced at $302 found 6 hours ago
United
Wed, Nov 12 - Tue, Dec 2
LAF
Lafayette
SAN
San Diego
$305 Roundtrip, found 16 hours ago
$305
Roundtrip
found 16 hours ago
Select United flight, departing Wed, Nov 12 from Lafayette to San Diego, returning Tue, Dec 2, priced at $305 found 16 hours ago
United
Thu, Dec 11 - Wed, Dec 17
LAF
Lafayette
SAN
San Diego
$307 Roundtrip, found 4 days ago
$307
Roundtrip
found 4 days ago
Select United flight, departing Thu, Dec 11 from Lafayette to San Diego, returning Wed, Dec 17, priced at $307 found 4 days ago
United
Wed, Dec 10 - Mon, Dec 15
LAF
Lafayette
SAN
San Diego
$319 Roundtrip, found 3 days ago
$319
Roundtrip
found 3 days ago
Select United flight, departing Wed, Dec 10 from Lafayette to San Diego, returning Mon, Dec 15, priced at $319 found 3 days ago
Flights from Lafayette (LAF) to San Diego (SAN)
Origin airport
Purdue University
Destination airport
San Diego Intl.
Airlines serving
United
Roundtrip price
$284
Distance
1751 mi

Lafayette to San Diego Flights

The cheapest times to fly from Lafayette 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 Lafayette to San Diego are during the month of November. You can find some of the cheapest flights from Lafayette to San Diego with Expedia's search tool and vast selection of airlines.

 

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

Sunday is one of the best days to book for cheap flights from Lafayette 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 Lafayette 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 Lafayette to San Diego in 2025. You can also book with separate airlines for your outbound and return journeys, from $232 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 Lafayette 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 Lafayette 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 Lafayette, IN (LAF-Purdue University) to San Diego Intl. Airport (SAN) cost?
Snag a cheap one-way flight from $232 or cheap return flight from $284 from Lafayette, IN (LAF-Purdue University) to San Diego Intl. Airport (SAN) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from Lafayette, IN (LAF-Purdue University) to San Diego Intl. Airport (SAN)?
November is the cheapest month to fly from LAF to SAN. Traveling outside of peak seasons is often the key to finding better fares.
Which airlines fly direct from Lafayette, IN (LAF-Purdue University) to San Diego Intl. Airport (SAN)?
You can't fly directly from Lafayette, IN (LAF-Purdue University) to San Diego Intl. Airport (SAN). However, there are other airports offering nonstop flights. Start your journey at Indianapolis Intl. Airport (IND) and head straight to San Diego without any detours.
What is the cheapest airline that flies from Lafayette, IN (LAF-Purdue University) to San Diego Intl. Airport (SAN)?
Expedia's filter tool lets you easily compare airlines, flight times and baggage options all in one place. Tailor the search to your trip, then sort by "Price (lowest to highest)" to find the carrier with the cheapest LAF to SAN flight.
How many flights per day from Lafayette, IN (LAF-Purdue University) to San Diego Intl. Airport (SAN)?
There aren't any daily nonstop flights departing from Lafayette, IN (LAF-Purdue University) to San Diego Intl. Airport (SAN). But you can opt for flights with layovers. Filter your search results on Expedia to include one or more stops, and you'll be soaring above the clouds in no time.
What day of the week has the most flights from LAF to SAN?
You'll typically find Tuesday the quietest day for flights, while Fridays are often the busiest.* However this can vary from season to season and during peak travel times or public holidays.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Lafayette, IN (LAF-Purdue University) to San Diego Intl. Airport (SAN)?
Opt for a flight from Lafayette, IN (LAF-Purdue University) to San Diego Intl. Airport (SAN) that takes off before 3 PM to reduce the risk of cancellations. Departures after this hour are on average 22% more likely to be canceled.**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 Lafayette, IN (LAF-Purdue University) to San Diego Intl. Airport (SAN) last-minute?
Holding off until just before your trip to book a ticket from LAF to SAN often results in higher prices. While you may come across some last-minute deals, they aren't always guaranteed. Keep your travel plans flexible to maximize your chances of snagging a bargain.
Is it cheaper to book a LAF to SAN flight and hotel package?
Opting for a LAF to SAN flight and hotel package is generally cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your trip all in one place. Pick from our wide range of stays and then add activities, flights and car rentals to your booking. Bundle it all together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Lafayette, IN (LAF-Purdue University) to San Diego Intl. Airport (SAN)?
Typically, you can cancel or modify your LAF to SAN flight. However, there may be additional fees, especially if you booked more than 24 hours ago. Check your itinerary for the airline's fees and policies on flight changes, or if you need further details, head to our Customer Service portal.

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*Available to One Key members.