$316 Cheap Flights from Gillette (GCC) to Seattle (SEA)

View $316 flight on Wed, Oct 15, 2025Opens in a new window

Popular airlines from Gillette, WY (GCC-Campbell County) to Seattle-Tacoma International Airport (SEA)

Cheap Flights from Gillette to Seattle (GCC-SEA)

Prices were available within the past 7 days and start at $316 for one-way flights and $289 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Sat, Oct 18 - Tue, Oct 28
GCC
Gillette
SEA
Seattle
$289 Roundtrip, found 2 hours ago
$289
Roundtrip
found 2 hours ago
Select United flight, departing Sat, Oct 18 from Gillette to Seattle, returning Tue, Oct 28, priced at $289 found 2 hours ago
United
Sat, Oct 18 - Tue, Oct 28
GCC
Gillette
SEA
Seattle
$294 Roundtrip, found 2 hours ago
$294
Roundtrip
found 2 hours ago
Select United flight, departing Sat, Oct 18 from Gillette to Seattle, returning Tue, Oct 28, priced at $294 found 2 hours ago
United
Sat, Oct 18 - Tue, Oct 28
GCC
Gillette
SEA
Seattle
$299 Roundtrip, found 2 hours ago
$299
Roundtrip
found 2 hours ago
Select United flight, departing Sat, Oct 18 from Gillette to Seattle, returning Tue, Oct 28, priced at $299 found 2 hours ago
United
Wed, Oct 22 - Tue, Oct 28
GCC
Gillette
SEA
Seattle
$308 Roundtrip, found 3 days ago
$308
Roundtrip
found 3 days ago
Select United flight, departing Wed, Oct 22 from Gillette to Seattle, returning Tue, Oct 28, priced at $308 found 3 days ago
United
Sat, Oct 18 - Tue, Oct 28
GCC
Gillette
SEA
Seattle
$311 Roundtrip, found 2 hours ago
$311
Roundtrip
found 2 hours ago
Select United flight, departing Sat, Oct 18 from Gillette to Seattle, returning Tue, Oct 28, priced at $311 found 2 hours ago
United
Tue, Oct 21 - Tue, Oct 28
GCC
Gillette
SEA
Seattle
$313 Roundtrip, found 2 days ago
$313
Roundtrip
found 2 days ago
Select United flight, departing Tue, Oct 21 from Gillette to Seattle, returning Tue, Oct 28, priced at $313 found 2 days ago
United
Fri, Oct 17 - Sat, Oct 18
GCC
Gillette
SEA
Seattle
$318 Roundtrip, found 3 days ago
$318
Roundtrip
found 3 days ago
Select United flight, departing Fri, Oct 17 from Gillette to Seattle, returning Sat, Oct 18, priced at $318 found 3 days ago
United
Sat, Oct 25 - Wed, Oct 29
GCC
Gillette
SEA
Seattle
$321 Roundtrip, found 17 hours ago
$321
Roundtrip
found 17 hours ago
Select United flight, departing Sat, Oct 25 from Gillette to Seattle, returning Wed, Oct 29, priced at $321 found 17 hours ago
United
Sat, Oct 18 - Sun, Oct 19
GCC
Gillette
SEA
Seattle
$324 Roundtrip, found 3 days ago
$324
Roundtrip
found 3 days ago
Select United flight, departing Sat, Oct 18 from Gillette to Seattle, returning Sun, Oct 19, priced at $324 found 3 days ago
United
Tue, Oct 7 - Wed, Oct 22
GCC
Gillette
SEA
Seattle
$338 Roundtrip, found 3 days ago
$338
Roundtrip
found 3 days ago
Select United flight, departing Tue, Oct 7 from Gillette to Seattle, returning Wed, Oct 22, priced at $338 found 3 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 $448
SEA
Seattle - Tacoma Intl.
Cheapest
Average driving time to city center20 min
Flights from $448

Frequently asked questions

How much does a flight from Campbell County Airport (GCC) to Seattle - Tacoma Intl. Airport (SEA) cost?
Get a cheap one-way flight from $316 or cheap return flight from $289 from Campbell County Airport (GCC) to Seattle - Tacoma Intl. Airport (SEA) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from Campbell County Airport (GCC) to Seattle - Tacoma Intl. Airport (SEA)?
October is the least expensive month to fly from GCC to SEA. Avoiding peak travel times is often the key to scoring lower fares.
What is the cheapest airline that flies from Campbell County Airport (GCC) to Seattle - Tacoma Intl. Airport (SEA)?
Expedia's filter tool lets you easily compare different airlines, departure times and fares all in one place. Select your preferences, then sort by "Price (lowest to highest)" to find out which carrier offers the cheapest GCC to SEA flight.
How many flights per day from Campbell County Airport (GCC) to Seattle - Tacoma Intl. Airport (SEA)?
There aren't any daily nonstop flights departing from Campbell County Airport (GCC) to Seattle - Tacoma Intl. Airport (SEA). But you can choose flights with layovers. Filter your search 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 GCC to SEA?
Friday is usually the busiest day for flights, while Tuesday tends to be the quietest.* Remember that flight schedules can vary depending on a range of factors, such as the time of year and carrier.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Campbell County Airport (GCC) to Seattle - Tacoma Intl. Airport (SEA)?
To land at Seattle - Tacoma Intl. Airport (SEA) without delays, choose a flight that leaves Campbell County Airport (GCC) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this time.**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 Campbell County Airport (GCC) to Seattle - Tacoma Intl. Airport (SEA) last-minute?
Last-minute fares from GCC to SEA are typically more expensive. To lock in the lowest prices, start searching for flights as soon as possible. That said, if your travel plans are flexible, you may land a cheap ticket just before your departure.
Is it cheaper to book a GCC to SEA flight and hotel package?
You can save money by securing a GCC 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 easy to manage everything in one place. Once you've chosen your ideal accommodations and flights, consider adding extras including car rentals, activities and tours.
Can I cancel or change the date of my flight from Campbell County Airport (GCC) to Seattle - Tacoma Intl. Airport (SEA)?
If you booked your GCC to SEA flight in the last 24 hours, you may be able to cancel or modify it without fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, visit our Customer Service portal if you want more information.

Travel information

Travel information

Origin airport
Campbell County
Destination airport
Seattle - Tacoma Intl.
Airlines serving
United
Roundtrip price
$288
Distance
832 mi

Book with confidence

Book with confidence

Gillette to Seattle Flights

The cheapest times to fly from Gillette 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 Gillette to Seattle are during the month of October. You can find some of the cheapest flights from Gillette to Seattle with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Gillette to Seattle

Sunday is one of the best days to book for cheap flights from Gillette 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 Gillette 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 Gillette to Seattle in 2025. You can also book with separate airlines for your outbound and return journeys, from $316 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 Gillette 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 Gillette 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.

 

Gillette to Seattle Flights

Explore a world of travel with Expedia

Explore a world of travel with Expedia

*Available to One Key members.