$200 Cheap Flights from Cheyenne (CYS) to Washington (IAD)

View $200 flight on Mon, Sep 29, 2025Opens in a new window

Popular airlines from Cheyenne, WY (CYS-Cheyenne Regional) to Washington Dulles Intl. Airport (IAD)

Cheap Flights from Cheyenne to Washington (CYS-IAD)

Prices were available within the past 7 days and start at $200 for one-way flights and $338 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Sat, Sep 6 - Mon, Sep 15
CYS
Cheyenne
IAD
Washington
$338 Roundtrip, found 6 days ago
$338
Roundtrip
found 6 days ago
Select United flight, departing Sat, Sep 6 from Cheyenne to Washington, returning Mon, Sep 15, priced at $338 found 6 days ago
United
Tue, Aug 26 - Sat, Sep 13
CYS
Cheyenne
IAD
Washington
$363 Roundtrip, found 6 days ago
$363
Roundtrip
found 6 days ago
Select United flight, departing Tue, Aug 26 from Cheyenne to Washington, returning Sat, Sep 13, priced at $363 found 6 days ago
United
Tue, Sep 2 - Mon, Sep 15
CYS
Cheyenne
IAD
Washington
$372 Roundtrip, found 6 days ago
$372
Roundtrip
found 6 days ago
Select United flight, departing Tue, Sep 2 from Cheyenne to Washington, returning Mon, Sep 15, priced at $372 found 6 days ago
United
Tue, Aug 26 - Wed, Sep 17
CYS
Cheyenne
IAD
Washington
$388 Roundtrip, found 6 days ago
$388
Roundtrip
found 6 days ago
Select United flight, departing Tue, Aug 26 from Cheyenne to Washington, returning Wed, Sep 17, priced at $388 found 6 days ago
United
Sat, Sep 20 - Sat, Oct 4
CYS
Cheyenne
IAD
Washington
$390 Roundtrip, found 6 days ago
$390
Roundtrip
found 6 days ago
Select United flight, departing Sat, Sep 20 from Cheyenne to Washington, returning Sat, Oct 4, priced at $390 found 6 days ago
United
Tue, Aug 19 - Mon, Sep 1
CYS
Cheyenne
IAD
Washington
$393 Roundtrip, found 6 days ago
$393
Roundtrip
found 6 days ago
Select United flight, departing Tue, Aug 19 from Cheyenne to Washington, returning Mon, Sep 1, priced at $393 found 6 days ago
United
Tue, Aug 26 - Tue, Sep 2
CYS
Cheyenne
IAD
Washington
$397 Roundtrip, found 6 days ago
$397
Roundtrip
found 6 days ago
Select United flight, departing Tue, Aug 26 from Cheyenne to Washington, returning Tue, Sep 2, priced at $397 found 6 days ago
United
Tue, Aug 26 - Mon, Sep 8
CYS
Cheyenne
IAD
Washington
$398 Roundtrip, found 6 days ago
$398
Roundtrip
found 6 days ago
Select United flight, departing Tue, Aug 26 from Cheyenne to Washington, returning Mon, Sep 8, priced at $398 found 6 days ago
United
Tue, Sep 16 - Wed, Oct 1
CYS
Cheyenne
IAD
Washington
$405 Roundtrip, found 6 days ago
$405
Roundtrip
found 6 days ago
Select United flight, departing Tue, Sep 16 from Cheyenne to Washington, returning Wed, Oct 1, priced at $405 found 6 days ago
United
Sun, Sep 21 - Sat, Oct 11
CYS
Cheyenne
IAD
Washington
$412 Roundtrip, found 6 days ago
$412
Roundtrip
found 6 days ago
Select United flight, departing Sun, Sep 21 from Cheyenne to Washington, returning Sat, Oct 11, priced at $412 found 6 days ago

Alternative airports near Washington

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

Select flight to Washington Dulles Intl. IAD. Cheapest option available. Average driving time to city center is 36 minutes. Flights from $510
IAD
Washington Dulles Intl.
Cheapest
Average driving time to city center36 min
Flights from $510
Flights from Cheyenne (CYS) to Washington (IAD)
Origin airport
Cheyenne Regional
Destination airport
Washington Dulles Intl.
Airlines serving
United
Roundtrip price
$338
Distance
1449 mi

Cheyenne to Washington Flights

The cheapest times to fly from Cheyenne to Washington

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

 

The best time to book a flight from Cheyenne to Washington

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

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 Cheyenne to Washington in 2025. You can also book with separate airlines for your outbound and return journeys, from $200 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 Cheyenne to Washington 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 Cheyenne to Washington 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 Cheyenne Regional Airport (CYS) to Washington Dulles Intl. Airport (IAD) cost?
Get a cheap one-way flight from $200 or cheap return flight from $338 from Cheyenne Regional Airport (CYS) to Washington Dulles Intl. Airport (IAD) 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 Cheyenne Regional Airport (CYS) to Washington Dulles Intl. Airport (IAD)?
September is the cheapest month to fly from CYS to IAD. Avoiding peak travel times is often the key to finding better deals on flights.
What is the cheapest airline that flies from Cheyenne Regional Airport (CYS) to Washington Dulles Intl. Airport (IAD)?
Use the filter tool on Expedia to compare airlines and find the most affordable carrier that'll fly you from CYS to IAD. Then, sort your results by "Price (lowest to highest)" to score a great deal.
How many flights per day from Cheyenne Regional Airport (CYS) to Washington Dulles Intl. Airport (IAD)?
Nonstop flights from Cheyenne Regional Airport (CYS) to Washington Dulles Intl. Airport (IAD) aren't available daily, so you'll need to take a flight with a layover. Explore your options with Expedia's filter tool. Enter your travel dates and click on either "1 Stop" or "2+ Stops."
What day of the week has the most flights from CYS to IAD?
Friday is usually the busiest day for flights, while Tuesday tends to be the quietest.* Just remember that flight schedules can change depending on various factors, including the season and airline.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Cheyenne Regional Airport (CYS) to Washington Dulles Intl. Airport (IAD)?
Choose a flight from Cheyenne Regional Airport (CYS) to Washington Dulles Intl. Airport (IAD) that leaves before 3 PM to reduce the risk of cancellations. Departures after this time are on average 22% more likely to be 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 Cheyenne Regional Airport (CYS) to Washington Dulles Intl. Airport (IAD) last-minute?
Last-minute fares from CYS to IAD are typically more expensive. For the best rates, start looking for flights well ahead of time. That being said, if you're flexible with your travel dates, it's possible to score a cheap fare just before your departure.
Is it cheaper to book a CYS to IAD flight and hotel package?
You can save money by securing a CYS to IAD 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. After choosing your ideal flights and accommodations, you can add extras such as car rentals, tours and activities.
Can I cancel or change the date of my flight from Cheyenne Regional Airport (CYS) to Washington Dulles Intl. Airport (IAD)?
Typically, it's possible to reschedule or cancel your CYS to IAD 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 allowed and if any costs are involved. You'll also find more details on our Customer Service portal.

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*Available to One Key members.