$338 Cheap Flights from Seattle (SEA) to La Paz (LPB)

View $338 flight on Sun, Nov 2, 2025Opens in a new window

Popular airlines from Seattle-Tacoma International Airport (SEA) to El Alto Intl. Airport (LPB)

Cheap Flights from Seattle to La Paz (SEA-LPB)

Prices were available within the past 7 days and start at $338 for one-way flights and $729 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Sun, Nov 16 - Wed, Nov 19
SEA
Seattle
LPB
La Paz
$729 Roundtrip, found 2 hours ago
$729
Roundtrip
found 2 hours ago
Select United flight, departing Sun, Nov 16 from Seattle to La Paz, returning Wed, Nov 19, priced at $729 found 2 hours ago
United
Sun, Feb 1 - Fri, Feb 27
SEA
Seattle
LPB
La Paz
$734 Roundtrip, found 6 hours ago
$734
Roundtrip
found 6 hours ago
Select United flight, departing Sun, Feb 1 from Seattle to La Paz, returning Fri, Feb 27, priced at $734 found 6 hours ago
United
Sat, Oct 25 - Wed, Nov 26
SEA
Seattle
LPB
La Paz
$734 Roundtrip, found 2 days ago
$734
Roundtrip
found 2 days ago
Select United flight, departing Sat, Oct 25 from Seattle to La Paz, returning Wed, Nov 26, priced at $734 found 2 days ago
United
Sun, Feb 1 - Fri, Feb 27
SEA
Seattle
LPB
La Paz
$742 Roundtrip, found 6 hours ago
$742
Roundtrip
found 6 hours ago
Select United flight, departing Sun, Feb 1 from Seattle to La Paz, returning Fri, Feb 27, priced at $742 found 6 hours ago
United
Tue, Nov 11 - Wed, Nov 26
SEA
Seattle
LPB
La Paz
$742 Roundtrip, found 1 day ago
$742
Roundtrip
found 1 day ago
Select United flight, departing Tue, Nov 11 from Seattle to La Paz, returning Wed, Nov 26, priced at $742 found 1 day ago
United
Mon, Nov 17 - Wed, Nov 26
SEA
Seattle
LPB
La Paz
$754 Roundtrip, found 2 hours ago
$754
Roundtrip
found 2 hours ago
Select United flight, departing Mon, Nov 17 from Seattle to La Paz, returning Wed, Nov 26, priced at $754 found 2 hours ago
United
Sun, Feb 1 - Fri, Feb 27
SEA
Seattle
LPB
La Paz
$759 Roundtrip, found 6 hours ago
$759
Roundtrip
found 6 hours ago
Select United flight, departing Sun, Feb 1 from Seattle to La Paz, returning Fri, Feb 27, priced at $759 found 6 hours ago
United
Mon, Mar 16 - Thu, Mar 19
SEA
Seattle
LPB
La Paz
$759 Roundtrip, found 2 days ago
$759
Roundtrip
found 2 days ago
Select United flight, departing Mon, Mar 16 from Seattle to La Paz, returning Thu, Mar 19, priced at $759 found 2 days ago
United
Sun, Feb 1 - Fri, Feb 27
SEA
Seattle
LPB
La Paz
$769 Roundtrip, found 6 hours ago
$769
Roundtrip
found 6 hours ago
Select United flight, departing Sun, Feb 1 from Seattle to La Paz, returning Fri, Feb 27, priced at $769 found 6 hours ago
avianca
Sat, Nov 1 - Fri, Nov 14
SEA
Seattle
LPB
La Paz
$2,089 Roundtrip, found 20 hours ago
$2,089
Roundtrip
found 20 hours ago
Select avianca flight, departing Sat, Nov 1 from Seattle to La Paz, returning Fri, Nov 14, priced at $2,089 found 20 hours ago

Alternative airports near La Paz

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

Select flight to El Alto Intl. LPB. Cheapest and Closest option available. Average driving time to city center is 12 minutes. Flights from $1,217
LPB
El Alto Intl.
CheapestClosest
Average driving time to city center12 min
Flights from $1,217
Flights from Seattle (SEA) to La Paz (LPB)
Origin airport
Seattle - Tacoma Intl.
Destination airport
El Alto Intl.
Airlines serving
avianca
Roundtrip price
$729
Distance
5539 mi

Seattle to La Paz Flights

The cheapest times to fly from Seattle to La Paz

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

 

The best time to book a flight from Seattle to La Paz

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

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 Seattle to La Paz in 2025. You can also book with separate airlines for your outbound and return journeys, from $338 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 Seattle to La Paz 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 Seattle to La Paz 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 Seattle - Tacoma Intl. Airport (SEA) to El Alto Intl. Airport (LPB) cost?
Secure a cheap one-way flight from $338 or cheap return flight from $729 from Seattle - Tacoma Intl. Airport (SEA) to El Alto Intl. Airport (LPB) 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 Seattle - Tacoma Intl. Airport (SEA) to El Alto Intl. Airport (LPB)?
November is the most affordable month to fly from SEA to LPB. Traveling during an off-peak travel window is often the key to finding a great deal.
What is the cheapest airline that flies from Seattle - Tacoma Intl. Airport (SEA) to El Alto Intl. Airport (LPB)?
Use the filters on Expedia to compare airlines and find the cheapest carrier that'll fly you from SEA to LPB. Then, sort your results by "Price (lowest to highest)" to pick up a great deal.
How many flights per day from Seattle - Tacoma Intl. Airport (SEA) to El Alto Intl. Airport (LPB)?
Nonstop flights from Seattle - Tacoma Intl. Airport (SEA) to El Alto Intl. Airport (LPB) aren't available daily, so you'll have to take a flight with a layover. Explore your options with our filter tool. Enter your travel dates and pick either "1 Stop" or "2+ Stops."
What day of the week has the most flights from SEA to LPB?
You'll generally find Tuesday the quietest day for flights, while Fridays are often the busiest.* However this can change from season to season and during public holidays or peak travel times.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Seattle - Tacoma Intl. Airport (SEA) to El Alto Intl. Airport (LPB)?
To avoid possible delays on the Seattle - Tacoma Intl. Airport (SEA) to El Alto Intl. Airport (LPB) route, travel before 3 PM. Later flights have a 22% higher chance of being 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 Seattle - Tacoma Intl. Airport (SEA) to El Alto Intl. Airport (LPB) last-minute?
Holding off until just before your trip to book a flight from SEA to LPB generally means paying more. While you may come across some last-minute deals, there's no guarantee. Be flexible with your itinerary to maximize your chances of scoring a bargain.
Is it cheaper to book a SEA to LPB flight and hotel package?
Securing a SEA to LPB flight and hotel package tends to be cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your trip in one place. Choose from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Seattle - Tacoma Intl. Airport (SEA) to El Alto Intl. Airport (LPB)?
In most cases, you can modify or cancel your SEA to LPB flight. However, there may be additional fees, especially if you made your booking over 24 hours ago. Double-check your itinerary for the airline's fees and rules on flight changes, or if you'd like more information, visit our Customer Service portal.

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*Available to One Key members.