$155 Cheap United flights Baton Rouge (BTR) to Seattle (SEA)

View $155 flight on Wed, Aug 5, 2026Opens in a new window
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$155 Cheap United flights Baton Rouge (BTR) to Seattle (SEA)

Prices were available within the past 7 days and start at $155 for one-way flights and $239 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Wed, Jan 14 - Sun, Jan 18
BTR
Baton Rouge
SEA
Seattle
$239 Roundtrip, found 2 hours ago
$239
Roundtrip
found 2 hours ago
Select United flight, departing Wed, Jan 14 from Baton Rouge to Seattle, returning Sun, Jan 18, priced at $239 found 2 hours ago
United
Wed, Jan 7 - Tue, Jan 27
BTR
Baton Rouge
SEA
Seattle
$248 Roundtrip, found 2 days ago
$248
Roundtrip
found 2 days ago
Select United flight, departing Wed, Jan 7 from Baton Rouge to Seattle, returning Tue, Jan 27, priced at $248 found 2 days ago
United
Wed, Jan 7 - Tue, Jan 27
BTR
Baton Rouge
SEA
Seattle
$277 Roundtrip, found 2 days ago
$277
Roundtrip
found 2 days ago
Select United flight, departing Wed, Jan 7 from Baton Rouge to Seattle, returning Tue, Jan 27, priced at $277 found 2 days ago
United
Wed, Jan 7 - Tue, Jan 27
BTR
Baton Rouge
SEA
Seattle
$278 Roundtrip, found 2 days ago
$278
Roundtrip
found 2 days ago
Select United flight, departing Wed, Jan 7 from Baton Rouge to Seattle, returning Tue, Jan 27, priced at $278 found 2 days ago
United
Wed, Jan 14 - Sun, Jan 18
BTR
Baton Rouge
SEA
Seattle
$280 Roundtrip, found 2 hours ago
$280
Roundtrip
found 2 hours ago
Select United flight, departing Wed, Jan 14 from Baton Rouge to Seattle, returning Sun, Jan 18, priced at $280 found 2 hours ago
United
Wed, Jan 7 - Tue, Jan 27
BTR
Baton Rouge
SEA
Seattle
$283 Roundtrip, found 2 days ago
$283
Roundtrip
found 2 days ago
Select United flight, departing Wed, Jan 7 from Baton Rouge to Seattle, returning Tue, Jan 27, priced at $283 found 2 days ago

Find the cheapest month to fly from Baton Rouge (BTR) to Seattle (SEA)

October is typically the cheapest month to fly

From $238 - $643 per traveler.

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 $609
SEA
Seattle - Tacoma Intl.
Cheapest
Average driving time to city center20 min
Flights from $609
Flights from Baton Rouge (BTR) to Seattle (SEA)
Origin airport
Baton Rouge Metropolitan
Destination airport
Seattle - Tacoma Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, United
Popular airline
Alaska Airlines
Distance
2018 mi

Frequently asked questions

How much is a United Airlines flight from Baton Rouge Metropolitan Airport (BTR) to Seattle - Tacoma Intl. Airport (SEA)?
Make use of the "Price (lowest to highest)" filter on Expedia to look for cheap United Airlines return flights from $239 from BTR to SEA. Affordable one-way fares from $155 are also on offer.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
What is the cheapest month to fly from BTR to SEA with United Airlines?
Search for one-way or round-trip flights to Seattle in January or February. You could find lower fares with United Airlines during these off-peak travel months.
What is the cheapest time to book flights from Baton Rouge Metropolitan Airport (BTR) to Seattle - Tacoma Intl. Airport (SEA) with United Airlines?
Search for cheap United Airlines flights from Baton Rouge Metropolitan Airport (BTR) to Seattle - Tacoma Intl. Airport (SEA) one to three months before your day of departure. Travelers who book domestic flights 34 to 86 days in advance can save 25% compared to those who book just 6 to 12 days ahead. No matter the fare class and itinerary, the best day to book a domestic flight is generally Sunday and the most expensive day is typically Monday. Passengers who book on a Sunday can save 6% on average compared to those who book on a Monday.**Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC's global airline sales database.
Does United Airlines fly nonstop from Baton Rouge Metropolitan Airport (BTR) to Seattle - Tacoma Intl. Airport (SEA)?
Use our "Nonstop" filter when searching for direct United Airlines flights from BTR to SEA. You can also compare other carriers offering the same nonstop trip.
What is the earliest United Airlines flight from BTR to SEA?
Sort your results by "Morning" and "Early Morning" to see the earliest departures from BTR to SEA. Jetting off early means flight cancellations are less likely.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports does United Airlines fly into in Seattle?
Seattle - Tacoma Intl. Airport (SEA) is the main Seattle hub for United Airlines flights from Baton Rouge Metropolitan Airport (BTR).
Why fly with United Airlines from BTR to SEA?
A rewarding loyalty program and the ability to collect points through United Mileage Plus are the start of the reasons to travel from BTR to SEA with United Airlines. Plus, when you sign up to our One Key™ program, you can receive OneKeyCash™* alongside any airline loyalty program earnings. It's yours to use wherever your next trip takes you.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.
Can I change or cancel my United Airlines flight from Baton Rouge Metropolitan Airport (BTR) to Seattle - Tacoma Intl. Airport (SEA)?
Depending on the type of fare you purchased, a fee generally applies if you cancel or reschedule your booking more than 24 hours after it's confirmed. To find plane tickets with more flexibility, select our "Changes included" and "No cancel fee" boxes when searching for flights. For additional information on modifying or canceling your reservation, head to "Trips," select your flight and click on "Manage Booking."

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