$232 Cheap Flights from Lafayette (LAF) to Seattle (SEA)

View $232 flight on Thu, Nov 6, 2025Opens in a new window

Popular airlines from Lafayette, IN (LAF-Purdue University) to Seattle-Tacoma International Airport (SEA)

Cheap Flights from Lafayette to Seattle (LAF-SEA)

Prices were available within the past 7 days and start at $232 for one-way flights and $365 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Mon, May 4 - Mon, May 25
LAF
Lafayette
SEA
Seattle
$365 Roundtrip, found 6 days ago
$365
Roundtrip
found 6 days ago
Select United flight, departing Mon, May 4 from Lafayette to Seattle, returning Mon, May 25, priced at $365 found 6 days ago
United
Mon, Nov 24 - Thu, Nov 27
LAF
Lafayette
SEA
Seattle
$374 Roundtrip, found 1 day ago
$374
Roundtrip
found 1 day ago
Select United flight, departing Mon, Nov 24 from Lafayette to Seattle, returning Thu, Nov 27, priced at $374 found 1 day ago
United
Tue, Mar 24 - Mon, Apr 6
LAF
Lafayette
SEA
Seattle
$380 Roundtrip, found 2 days ago
$380
Roundtrip
found 2 days ago
Select United flight, departing Tue, Mar 24 from Lafayette to Seattle, returning Mon, Apr 6, priced at $380 found 2 days ago
United
Tue, Nov 18 - Sun, Nov 23
LAF
Lafayette
SEA
Seattle
$384 Roundtrip, found 2 days ago
$384
Roundtrip
found 2 days ago
Select United flight, departing Tue, Nov 18 from Lafayette to Seattle, returning Sun, Nov 23, priced at $384 found 2 days ago
United
Wed, Oct 29 - Sun, Nov 2
LAF
Lafayette
SEA
Seattle
$388 Roundtrip, found 5 days ago
$388
Roundtrip
found 5 days ago
Select United flight, departing Wed, Oct 29 from Lafayette to Seattle, returning Sun, Nov 2, priced at $388 found 5 days ago
United
Fri, Dec 5 - Mon, Dec 15
LAF
Lafayette
SEA
Seattle
$389 Roundtrip, found 2 days ago
$389
Roundtrip
found 2 days ago
Select United flight, departing Fri, Dec 5 from Lafayette to Seattle, returning Mon, Dec 15, priced at $389 found 2 days ago
United
Sun, Nov 2 - Tue, Nov 18
LAF
Lafayette
SEA
Seattle
$399 Roundtrip, found 2 days ago
$399
Roundtrip
found 2 days ago
Select United flight, departing Sun, Nov 2 from Lafayette to Seattle, returning Tue, Nov 18, priced at $399 found 2 days ago
United
Thu, Nov 6 - Sun, Nov 16
LAF
Lafayette
SEA
Seattle
$405 Roundtrip, found 2 days ago
$405
Roundtrip
found 2 days ago
Select United flight, departing Thu, Nov 6 from Lafayette to Seattle, returning Sun, Nov 16, priced at $405 found 2 days ago
United
Mon, May 4 - Mon, May 25
LAF
Lafayette
SEA
Seattle
$409 Roundtrip, found 6 days ago
$409
Roundtrip
found 6 days ago
Select United flight, departing Mon, May 4 from Lafayette to Seattle, returning Mon, May 25, priced at $409 found 6 days ago
United
Fri, Dec 5 - Wed, Dec 17
LAF
Lafayette
SEA
Seattle
$415 Roundtrip, found 2 days ago
$415
Roundtrip
found 2 days ago
Select United flight, departing Fri, Dec 5 from Lafayette to Seattle, returning Wed, Dec 17, priced at $415 found 2 days ago

Alternative airports near Seattle

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

Select flight to Seattle - Tacoma Intl. SEA. Cheapest option available. Average driving time to city center is 20 minutes. Flights from $399
SEA
Seattle - Tacoma Intl.
Cheapest
Average driving time to city center20 min
Flights from $399
Flights from Lafayette (LAF) to Seattle (SEA)
Origin airport
Purdue University
Destination airport
Seattle - Tacoma Intl.
Airlines serving
United
Roundtrip price
$364
Distance
1808 mi

Lafayette to Seattle Flights

The cheapest times to fly from Lafayette to Seattle

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

 

The best time to book a flight from Lafayette to Seattle

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

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 Seattle 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 Seattle 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 Seattle 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 Seattle - Tacoma Intl. Airport (SEA) cost?
Lock in a cheap one-way flight from $232 or cheap return flight from $365 from Lafayette, IN (LAF-Purdue University) to Seattle - Tacoma Intl. Airport (SEA) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Lafayette, IN (LAF-Purdue University) to Seattle - Tacoma Intl. Airport (SEA)?
May is the least expensive month to fly from LAF to SEA. Planning your trip for the off-season is often the key to finding better fares.
Which airlines fly direct from Lafayette, IN (LAF-Purdue University) to Seattle - Tacoma Intl. Airport (SEA)?
Although Lafayette, IN (LAF-Purdue University) has no direct flights to Seattle - Tacoma Intl. Airport (SEA), other airports have nonstop options. Flying from Indianapolis Intl. Airport (IND) will get you to Seattle without any detours.
What is the cheapest airline that flies from Lafayette, IN (LAF-Purdue University) to Seattle - Tacoma Intl. Airport (SEA)?
To find the cheapest airline that'll fly you from LAF to SEA, use Expedia's filter tool. Customize your search based on what's important to you, such as preferred carriers and number of stops. You can then sort your results by "Price (lowest to highest)" to see the cheapest flights first.
How many flights per day from Lafayette, IN (LAF-Purdue University) to Seattle - Tacoma Intl. Airport (SEA)?
You'll have to catch a flight with a layover when traveling from Lafayette, IN (LAF-Purdue University) to Seattle - Tacoma Intl. Airport (SEA). There are no daily direct flights on this route. However, simply filter your search to include one or two stops to find an option that works for you.
What day of the week has the most flights from LAF to SEA?
You'll generally find Tuesday the quietest day for flights, while Fridays tend to be 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 Seattle - Tacoma Intl. Airport (SEA)?
Choose a flight from Lafayette, IN (LAF-Purdue University) to Seattle - Tacoma Intl. Airport (SEA) that leaves before 3 PM to reduce the risk of delays and cancellations. Departures after this time have a 22% higher chance of being canceled, on average.**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 Seattle - Tacoma Intl. Airport (SEA) last-minute?
Booking your ticket from LAF to SEA just before your trip is typically more expensive. However, if you're flexible with your departure dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a LAF to SEA flight and hotel package?
You'll generally save money by securing a LAF to SEA flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's simple to manage it all in one place. Once you've chosen your preferred flights and accommodations, consider adding extras like car rentals, tours and activities.
Can I cancel or change the date of my flight from Lafayette, IN (LAF-Purdue University) to Seattle - Tacoma Intl. Airport (SEA)?
It's generally possible to cancel or reschedule your LAF to SEA flight. However, if the booking was made more than 24 hours ago, additional fees may apply. Check 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.

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*Available to One Key members.