$123 Cheap Flights from Seattle (SEA) to Cheyenne (CYS)

View $123 flight on Wed, Nov 5, 2025Opens in a new window

Popular airlines from Seattle-Tacoma International Airport (SEA) to Cheyenne, WY (CYS-Cheyenne Regional)

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Cheap Flights from Seattle to Cheyenne (SEA-CYS)

Prices were available within the past 7 days and start at $123 for one-way flights and $226 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Wed, Dec 10 - Tue, Dec 16
SEA
Seattle
CYS
Cheyenne
$226 Roundtrip, just found
$226
Roundtrip
just found
Select United flight, departing Wed, Dec 10 from Seattle to Cheyenne, returning Tue, Dec 16, priced at $226 just found
United
Wed, Dec 10 - Tue, Dec 16
SEA
Seattle
CYS
Cheyenne
$232 Roundtrip, just found
$232
Roundtrip
just found
Select United flight, departing Wed, Dec 10 from Seattle to Cheyenne, returning Tue, Dec 16, priced at $232 just found
United
Sun, Mar 1 - Sat, Mar 7
SEA
Seattle
CYS
Cheyenne
$253 Roundtrip, found 2 days ago
$253
Roundtrip
found 2 days ago
Select United flight, departing Sun, Mar 1 from Seattle to Cheyenne, returning Sat, Mar 7, priced at $253 found 2 days ago
United
Sat, Jan 10 - Thu, Jan 15
SEA
Seattle
CYS
Cheyenne
$255 Roundtrip, found 2 days ago
$255
Roundtrip
found 2 days ago
Select United flight, departing Sat, Jan 10 from Seattle to Cheyenne, returning Thu, Jan 15, priced at $255 found 2 days ago
United
Wed, Dec 10 - Tue, Dec 16
SEA
Seattle
CYS
Cheyenne
$260 Roundtrip, just found
$260
Roundtrip
just found
Select United flight, departing Wed, Dec 10 from Seattle to Cheyenne, returning Tue, Dec 16, priced at $260 just found
United
Sat, Jan 10 - Thu, Jan 15
SEA
Seattle
CYS
Cheyenne
$261 Roundtrip, found 2 days ago
$261
Roundtrip
found 2 days ago
Select United flight, departing Sat, Jan 10 from Seattle to Cheyenne, returning Thu, Jan 15, priced at $261 found 2 days ago
United
Thu, Nov 6 - Sat, Nov 8
SEA
Seattle
CYS
Cheyenne
$262 Roundtrip, found 2 days ago
$262
Roundtrip
found 2 days ago
Select United flight, departing Thu, Nov 6 from Seattle to Cheyenne, returning Sat, Nov 8, priced at $262 found 2 days ago
United
Wed, Dec 10 - Tue, Dec 16
SEA
Seattle
CYS
Cheyenne
$265 Roundtrip, just found
$265
Roundtrip
just found
Select United flight, departing Wed, Dec 10 from Seattle to Cheyenne, returning Tue, Dec 16, priced at $265 just found
United
Mon, Dec 8 - Sat, Dec 13
SEA
Seattle
CYS
Cheyenne
$266 Roundtrip, just found
$266
Roundtrip
just found
Select United flight, departing Mon, Dec 8 from Seattle to Cheyenne, returning Sat, Dec 13, priced at $266 just found
United
Thu, Nov 6 - Sat, Nov 8
SEA
Seattle
CYS
Cheyenne
$268 Roundtrip, found 2 days ago
$268
Roundtrip
found 2 days ago
Select United flight, departing Thu, Nov 6 from Seattle to Cheyenne, returning Sat, Nov 8, priced at $268 found 2 days ago

Find the cheapest month to fly from Seattle (SEA) to Cheyenne (CYS)

February is typically the cheapest month to fly

From $206 - $556 per traveler.

Alternative airports near Cheyenne

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

Select flight to Cheyenne Regional CYS. Cheapest and Closest option available. Average driving time to city center is 2 minutes. Flights from $306
CYS
Cheyenne Regional
CheapestClosest
Average driving time to city center2 min
Flights from $306
Flights from Seattle (SEA) to Cheyenne (CYS)
Origin airport
Seattle - Tacoma Intl.
Destination airport
Cheyenne Regional
Airlines serving
United
Roundtrip price
$226
Distance
964 mi

Seattle to Cheyenne Flights

The cheapest times to fly from Seattle to Cheyenne

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

 

The best time to book a flight from Seattle to Cheyenne

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

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 Cheyenne in 2025. You can also book with separate airlines for your outbound and return journeys, from $123 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 Cheyenne 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 Cheyenne 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 Cheyenne Regional Airport (CYS) cost?
Secure a cheap one-way flight from $123 or cheap return flight from $226 from Seattle - Tacoma Intl. Airport (SEA) to Cheyenne Regional Airport (CYS) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from Seattle - Tacoma Intl. Airport (SEA) to Cheyenne Regional Airport (CYS)?
December is the cheapest month to fly from SEA to CYS. Avoiding peak travel times is often the key to landing a great deal.
What is the cheapest airline that flies from Seattle - Tacoma Intl. Airport (SEA) to Cheyenne Regional Airport (CYS)?
Use the filters on Expedia to compare different airlines and find the cheapest carrier that'll fly you from SEA to CYS. Then, sort your results by "Price (lowest to highest)" to pick up a good deal.
How many flights per day from Seattle - Tacoma Intl. Airport (SEA) to Cheyenne Regional Airport (CYS)?
There aren't any daily nonstop flights available from Seattle - Tacoma Intl. Airport (SEA) to Cheyenne Regional Airport (CYS). But you can book 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 at all.
What day of the week has the most flights from SEA to CYS?
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 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 Cheyenne Regional Airport (CYS)?
To land at Cheyenne Regional Airport (CYS) on schedule, choose a flight that takes off from Seattle - Tacoma Intl. Airport (SEA) before 3 PM. The chance 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 Seattle - Tacoma Intl. Airport (SEA) to Cheyenne Regional Airport (CYS) last-minute?
Last-minute fares from SEA to CYS are generally more expensive. To lock in the lowest rates, start looking for flights as soon as possible. That being said, if you're flexible with your travel dates, it's possible to score a cheap ticket right before you leave.
Is it cheaper to book a SEA to CYS flight and hotel package?
Compared with arranging flights and hotels separately, booking a SEA to CYS flight and hotel package with Expedia could lead to significant savings. What's more, having everything in one easy place takes the hassle out of travel planning. Simply secure your flights and select from our extensive range of hotels, then personalize your trip with other add-ons like tours, activities and car rentals.
Can I cancel or change the date of my flight from Seattle - Tacoma Intl. Airport (SEA) to Cheyenne Regional Airport (CYS)?
If you reserved your SEA to CYS flight within the last 24 hours, you may be able to cancel or modify it without any fees. Depending on the airline and the type of fare you have, additional charges may apply for changes after that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, visit our Customer Service portal for more information.

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*Available to One Key members.