$296 Cheap Flights from San Francisco (SFO) to Lafayette (LAF)

View $296 flight on Wed, Jan 14, 2026Opens in a new window

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

Cheap Flights from San Francisco to Lafayette (SFO-LAF)

Prices were available within the past 7 days and start at $296 for one-way flights and $309 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Sun, Nov 9 - Sun, Nov 16
SFO
San Francisco
LAF
Lafayette
$309 Roundtrip, found 3 days ago
$309
Roundtrip
found 3 days ago
Select United flight, departing Sun, Nov 9 from San Francisco to Lafayette, returning Sun, Nov 16, priced at $309 found 3 days ago
United
Sat, Dec 6 - Tue, Dec 23
SFO
San Francisco
LAF
Lafayette
$374 Roundtrip, found 8 hours ago
$374
Roundtrip
found 8 hours ago
Select United flight, departing Sat, Dec 6 from San Francisco to Lafayette, returning Tue, Dec 23, priced at $374 found 8 hours ago
United
Sat, Nov 8 - Mon, Nov 10
SFO
San Francisco
LAF
Lafayette
$379 Roundtrip, found 3 days ago
$379
Roundtrip
found 3 days ago
Select United flight, departing Sat, Nov 8 from San Francisco to Lafayette, returning Mon, Nov 10, priced at $379 found 3 days ago
United
Mon, Nov 10 - Mon, Nov 17
SFO
San Francisco
LAF
Lafayette
$399 Roundtrip, found 3 days ago
$399
Roundtrip
found 3 days ago
Select United flight, departing Mon, Nov 10 from San Francisco to Lafayette, returning Mon, Nov 17, priced at $399 found 3 days ago
United
Sun, Nov 16 - Fri, Dec 5
SFO
San Francisco
LAF
Lafayette
$409 Roundtrip, found 8 hours ago
$409
Roundtrip
found 8 hours ago
Select United flight, departing Sun, Nov 16 from San Francisco to Lafayette, returning Fri, Dec 5, priced at $409 found 8 hours ago
United
Mon, Nov 10 - Sat, Nov 15
SFO
San Francisco
LAF
Lafayette
$424 Roundtrip, found 3 days ago
$424
Roundtrip
found 3 days ago
Select United flight, departing Mon, Nov 10 from San Francisco to Lafayette, returning Sat, Nov 15, priced at $424 found 3 days ago
United
Wed, Dec 31 - Mon, Jan 5
SFO
San Francisco
LAF
Lafayette
$433 Roundtrip, found 2 days ago
$433
Roundtrip
found 2 days ago
Select United flight, departing Wed, Dec 31 from San Francisco to Lafayette, returning Mon, Jan 5, priced at $433 found 2 days ago
United
Sat, Dec 6 - Thu, Dec 25
SFO
San Francisco
LAF
Lafayette
$435 Roundtrip, found 8 hours ago
$435
Roundtrip
found 8 hours ago
Select United flight, departing Sat, Dec 6 from San Francisco to Lafayette, returning Thu, Dec 25, priced at $435 found 8 hours ago
United
Tue, Dec 2 - Mon, Dec 15
SFO
San Francisco
LAF
Lafayette
$442 Roundtrip, found 8 hours ago
$442
Roundtrip
found 8 hours ago
Select United flight, departing Tue, Dec 2 from San Francisco to Lafayette, returning Mon, Dec 15, priced at $442 found 8 hours ago
United
Thu, Dec 11 - Tue, Dec 23
SFO
San Francisco
LAF
Lafayette
$447 Roundtrip, found 8 hours ago
$447
Roundtrip
found 8 hours ago
Select United flight, departing Thu, Dec 11 from San Francisco to Lafayette, returning Tue, Dec 23, priced at $447 found 8 hours ago

Alternative airports near Lafayette

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Purdue University LAF. Cheapest and Closest option available. Average driving time to city center is 8 minutes. Flights from $470
LAF
Purdue University
CheapestClosest
Average driving time to city center8 min
Flights from $470

Frequently asked questions

How much does a flight from San Francisco Intl. Airport (SFO) to Lafayette, IN (LAF-Purdue University) cost?
Snag a cheap one-way flight from $296 or cheap return flight from $309 from San Francisco Intl. Airport (SFO) to Lafayette, IN (LAF-Purdue University) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from San Francisco Intl. Airport (SFO) to Lafayette, IN (LAF-Purdue University)?
November is the most affordable month to fly from SFO to LAF. Traveling during an off-peak travel window is often the key to landing a great deal.
What is the cheapest airline that flies from San Francisco Intl. Airport (SFO) to Lafayette, IN (LAF-Purdue University)?
Expedia's filter tool lets you easily compare airlines, flight times and baggage options all in one place. Customize the search to your preferences, then sort by "Price (lowest to highest)" to see which carrier offers the cheapest SFO to LAF flight.
How many flights per day from San Francisco Intl. Airport (SFO) to Lafayette, IN (LAF-Purdue University)?
Direct flights from San Francisco Intl. Airport (SFO) to Lafayette, IN (LAF-Purdue University) aren't available daily, so you'll have to take a flight with a layover. Explore your options with Expedia's filters. Enter your travel dates and choose either "1 Stop" or "2+ Stops."
What day of the week has the most flights from SFO to LAF?
Usually you'll find the most flight options available on a Friday. Tuesdays tend to be the quietest.* However, this can change based on the time of year, carrier and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from San Francisco Intl. Airport (SFO) to Lafayette, IN (LAF-Purdue University)?
To avoid potential delays on the San Francisco Intl. Airport (SFO) to Lafayette, IN (LAF-Purdue University) route, aim to travel before 3 PM. Later departures are 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.
What airports do you fly into for West Lafayette from San Francisco Intl. Airport (SFO)?
Explore your flight options from San Francisco Intl. Airport (SFO) to Indianapolis Intl. Airport (IND). This is the only airport in West Lafayette you can touch down at if you're taking a direct flight.
Is it cheaper to buy a plane ticket from San Francisco Intl. Airport (SFO) to Lafayette, IN (LAF-Purdue University) last-minute?
Last-minute fares from SFO to LAF are typically more expensive. To lock in the lowest prices, start searching for flights as early as possible. That said, if you're flexible with your travel plans, you may score a cheap ticket right before your journey.
Is it cheaper to book a SFO to LAF flight and hotel package?
You'll generally save money by booking a SFO to LAF flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's simple to manage everything in one convenient place. Once you've selected your preferred flights and accommodations, consider other add-ons like car rentals, tours and activities.
Can I cancel or change the date of my flight from San Francisco Intl. Airport (SFO) to Lafayette, IN (LAF-Purdue University)?
You can usually cancel or reschedule your SFO to LAF flight. However, if the booking was made more than 24 hours ago, additional charges may apply. Refer to your airline's policies in your itinerary to see what changes are possible and if any costs are involved. You'll also find more information on our Customer Service portal.

Travel information

Origin airport
San Francisco Intl.
Destination airport
Purdue University
Airlines serving
United
Roundtrip price
$309
Distance
1900 mi

Book with confidence

San Francisco to Lafayette Flights

The cheapest times to fly from San Francisco to Lafayette

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

 

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

Sunday is one of the best days to book for cheap flights from San Francisco to Lafayette: 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 San Francisco to Lafayette

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 San Francisco to Lafayette in 2025. You can also book with separate airlines for your outbound and return journeys, from $296 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 San Francisco to Lafayette 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 San Francisco to Lafayette 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.

 

San Francisco to Lafayette Flights

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*Available to One Key members.