$338 Cheap Flights from Cape Girardeau (CGI) to Washington (IAD)

View $338 flight on Sat, Aug 9, 2025Opens in a new window

Popular airlines from Cape Girardeau, MO (CGI-Cape Girardeau Municipal) to Washington Dulles Intl. Airport (IAD)

Cheap Flights from Cape Girardeau to Washington (CGI-IAD)

Prices were available within the past 7 days and start at $338 for one-way flights and $402 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Contour Airlines
Mon, Sep 1 - Sat, Sep 13
CGI
Cape Girardeau
IAD
Washington
$402 Roundtrip, found 4 days ago
$402
Roundtrip
found 4 days ago
Select Contour Airlines flight, departing Mon, Sep 1 from Cape Girardeau to Washington, returning Sat, Sep 13, priced at $402 found 4 days ago
Contour Airlines
Wed, Aug 27 - Mon, Sep 1
CGI
Cape Girardeau
IAD
Washington
$406 Roundtrip, found 6 hours ago
$406
Roundtrip
found 6 hours ago
Select Contour Airlines flight, departing Wed, Aug 27 from Cape Girardeau to Washington, returning Mon, Sep 1, priced at $406 found 6 hours ago
Contour Airlines
Thu, Aug 21 - Thu, Sep 4
CGI
Cape Girardeau
IAD
Washington
$408 Roundtrip, found 2 days ago
$408
Roundtrip
found 2 days ago
Select Contour Airlines flight, departing Thu, Aug 21 from Cape Girardeau to Washington, returning Thu, Sep 4, priced at $408 found 2 days ago
Contour Airlines
Wed, Aug 27 - Mon, Sep 1
CGI
Cape Girardeau
IAD
Washington
$412 Roundtrip, found 3 days ago
$412
Roundtrip
found 3 days ago
Select Contour Airlines flight, departing Wed, Aug 27 from Cape Girardeau to Washington, returning Mon, Sep 1, priced at $412 found 3 days ago
Contour Airlines
Thu, Aug 28 - Mon, Sep 1
CGI
Cape Girardeau
IAD
Washington
$418 Roundtrip, found 4 days ago
$418
Roundtrip
found 4 days ago
Select Contour Airlines flight, departing Thu, Aug 28 from Cape Girardeau to Washington, returning Mon, Sep 1, priced at $418 found 4 days ago
Contour Airlines
Wed, Aug 27 - Mon, Sep 1
CGI
Cape Girardeau
IAD
Washington
$430 Roundtrip, found 6 hours ago
$430
Roundtrip
found 6 hours ago
Select Contour Airlines flight, departing Wed, Aug 27 from Cape Girardeau to Washington, returning Mon, Sep 1, priced at $430 found 6 hours ago
Contour Airlines
Wed, Aug 27 - Mon, Sep 1
CGI
Cape Girardeau
IAD
Washington
$431 Roundtrip, found 1 day ago
$431
Roundtrip
found 1 day ago
Select Contour Airlines flight, departing Wed, Aug 27 from Cape Girardeau to Washington, returning Mon, Sep 1, priced at $431 found 1 day ago
Contour Airlines
Wed, Aug 27 - Mon, Sep 1
CGI
Cape Girardeau
IAD
Washington
$432 Roundtrip, found 1 day ago
$432
Roundtrip
found 1 day ago
Select Contour Airlines flight, departing Wed, Aug 27 from Cape Girardeau to Washington, returning Mon, Sep 1, priced at $432 found 1 day ago
Contour Airlines
Thu, Aug 28 - Mon, Sep 1
CGI
Cape Girardeau
IAD
Washington
$433 Roundtrip, found 4 days ago
$433
Roundtrip
found 4 days ago
Select Contour Airlines flight, departing Thu, Aug 28 from Cape Girardeau to Washington, returning Mon, Sep 1, priced at $433 found 4 days ago
Contour Airlines
Fri, Aug 29 - Tue, Sep 2
CGI
Cape Girardeau
IAD
Washington
$440 Roundtrip, found 4 days ago
$440
Roundtrip
found 4 days ago
Select Contour Airlines flight, departing Fri, Aug 29 from Cape Girardeau to Washington, returning Tue, Sep 2, priced at $440 found 4 days ago
Flights from Cape Girardeau (CGI) to Washington (IAD)
Origin airport
Cape Girardeau Municipal
Destination airport
Washington Dulles Intl.
Roundtrip price
$402
Distance
669 mi

Cape Girardeau to Washington Flights

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

 

The best time to book a flight from Cape Girardeau to Washington

Sunday is one of the best days to book for cheap flights from Cape Girardeau 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 Cape Girardeau 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 Cape Girardeau to Washington 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 Cape Girardeau 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 Cape Girardeau 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 Cape Girardeau Municipal Airport (CGI) to Washington Dulles Intl. Airport (IAD) cost?
Discover the latest flight deals from CGI to IAD by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from CGI to IAD?
The cheapest flights from CGI to IAD are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from CGI to IAD?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from CGI to IAD. Sort your results by "Price (lowest to highest)" to snap up a great deal.
How many flights per day from Cape Girardeau Municipal Airport (CGI) to Washington Dulles Intl. Airport (IAD)?
You'll need to catch a flight with a layover if you're traveling from Cape Girardeau Municipal Airport (CGI) to Washington Dulles Intl. Airport (IAD). There are no daily direct flights on this route. However, just filter your search to include one or two stops to discover the best option for your trip.
What day of the week has the most flights from CGI to IAD?
Generally you'll find the largest variety of flight choices on a Friday. Tuesdays are often the quietest.* But this can change based on the time of year, carrier and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Cape Girardeau Municipal Airport (CGI) to Washington Dulles Intl. Airport (IAD)?
To land at Washington Dulles Intl. Airport (IAD) on time, choose a flight that leaves Cape Girardeau Municipal Airport (CGI) before 3 PM. The chance of cancellations is 22% higher, on average, for departures after this hour.**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 Cape Girardeau Municipal Airport (CGI) to Washington Dulles Intl. Airport (IAD) last-minute?
Last-minute bookings from CGI to IAD are generally more expensive. To secure the cheapest rates, start looking for flights as soon as possible. That being said, if you're flexible with your travel plans, it's possible to land a cheap fare right before you leave.
Is it cheaper to book a CGI to IAD flight and hotel package?
You can save money by booking a CGI 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 simple to manage everything in one place. Once you've selected your ideal accommodations and flights, consider adding extras including tours, car rentals and activities.
Can I cancel or change the date of my flight from Cape Girardeau Municipal Airport (CGI) to Washington Dulles Intl. Airport (IAD)?
If you reserved your CGI to IAD flight in the last 24 hours, you may be able to modify or cancel it without fees. Depending on the airline and the ticket type you purchased, additional charges may apply for changes beyond that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you want more information.

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*Available to One Key members.