$255 Cheap Flights from George Town (GCM) to Washington (IAD)

View $255 flight on Sat, Sep 13, 2025Opens in a new window

Popular airlines from Owen Roberts Intl. Airport (GCM) to Washington Dulles Intl. Airport (IAD)

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Find available prices by choosing your travel dates.

Cheap Flights from George Town to Washington (GCM-IAD)

Prices were available within the past 7 days and start at $255 for one-way flights and $385 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Sat, Sep 13 - Sat, Sep 20
GCM
Grand Cayman
IAD
Washington
$385 Roundtrip, found 4 days ago
$385
Roundtrip
found 4 days ago
Select United flight, departing Sat, Sep 13 from Grand Cayman to Washington, returning Sat, Sep 20, priced at $385 found 4 days ago
American Airlines
Sat, Aug 23 - Sun, Aug 31
GCM
Grand Cayman
IAD
Washington
$385 Roundtrip, found 6 days ago
$385
Roundtrip
found 6 days ago
Select American Airlines flight, departing Sat, Aug 23 from Grand Cayman to Washington, returning Sun, Aug 31, priced at $385 found 6 days ago
United
Sat, Sep 13 - Sat, Sep 20
GCM
Grand Cayman
IAD
Washington
$394 Roundtrip, found 4 days ago
$394
Roundtrip
found 4 days ago
Select United flight, departing Sat, Sep 13 from Grand Cayman to Washington, returning Sat, Sep 20, priced at $394 found 4 days ago
American Airlines
Wed, Sep 10 - Wed, Sep 17
GCM
Grand Cayman
IAD
Washington
$400 Roundtrip, found 4 days ago
$400
Roundtrip
found 4 days ago
Select American Airlines flight, departing Wed, Sep 10 from Grand Cayman to Washington, returning Wed, Sep 17, priced at $400 found 4 days ago
American Airlines
Sat, Sep 13 - Sat, Sep 20
GCM
Grand Cayman
IAD
Washington
$402 Roundtrip, found 4 days ago
$402
Roundtrip
found 4 days ago
Select American Airlines flight, departing Sat, Sep 13 from Grand Cayman to Washington, returning Sat, Sep 20, priced at $402 found 4 days ago
American Airlines
Tue, Sep 16 - Mon, Sep 22
GCM
Grand Cayman
IAD
Washington
$404 Roundtrip, found 4 days ago
$404
Roundtrip
found 4 days ago
Select American Airlines flight, departing Tue, Sep 16 from Grand Cayman to Washington, returning Mon, Sep 22, priced at $404 found 4 days ago
United
Sat, Sep 13 - Sat, Sep 20
GCM
Grand Cayman
IAD
Washington
$406 Roundtrip, found 4 days ago
$406
Roundtrip
found 4 days ago
Select United flight, departing Sat, Sep 13 from Grand Cayman to Washington, returning Sat, Sep 20, priced at $406 found 4 days ago
American Airlines
Sat, Sep 13 - Sat, Sep 20
GCM
Grand Cayman
IAD
Washington
$408 Roundtrip, found 4 days ago
$408
Roundtrip
found 4 days ago
Select American Airlines flight, departing Sat, Sep 13 from Grand Cayman to Washington, returning Sat, Sep 20, priced at $408 found 4 days ago
Air Canada
Thu, Jun 19 - Sun, Jul 6
GCM
Grand Cayman
IAD
Washington
$419 Roundtrip, found 5 days ago
$419
Roundtrip
found 5 days ago
Select Air Canada flight, departing Thu, Jun 19 from Grand Cayman to Washington, returning Sun, Jul 6, priced at $419 found 5 days ago
Delta
Thu, Aug 21 - Sun, Aug 24
GCM
Grand Cayman
IAD
Washington
$450 Roundtrip, found 2 days ago
$450
Roundtrip
found 2 days ago
Select Delta flight, departing Thu, Aug 21 from Grand Cayman to Washington, returning Sun, Aug 24, priced at $450 found 2 days ago
Flights from George Town (GCM) to Washington (IAD)
Origin airport
Owen Roberts Intl.
Destination airport
Washington Dulles Intl.
Airlines serving
Air Canada, American Airlines, Delta, United
Roundtrip price
$384
Distance
1378 mi

George Town to Washington Flights

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

 

The best time to book a flight from George Town to Washington

Sunday is one of the best days to book for cheap flights from George Town 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 George Town 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 George Town to Washington in 2025. You can also book with separate airlines for your outbound and return journeys, from $255 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 George Town 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 George Town 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 long does it take to fly from Owen Roberts Intl. Airport to IAD?
A direct flight with United Airlines takes roughly 3 hours and 15 minutes. Take the 4:30PM flight from GCM and come in to land at IAD at 8:45PM. Grab a superb deal on this and other routes when you book your ticket with Expedia.
Is it cheaper to buy a plane ticket from Owen Roberts Intl. Airport to IAD last minute?
When it comes to booking your flights, being prepared pays off. While you may be able to find a last-minute deal on an Owen Roberts Intl. Airport (GCM) to Washington Dulles Intl. Airport (IAD) flight, fares usually don’t get cheaper as the departure date nears. Based on flight pricing and demand studies in 2022, we have found that the sweet spot to lock in a domestic flight is between 28 – 35 days ahead. For international travel it’s three to four months.
What airline has the least delays from Owen Roberts Intl. Airport (GCM) to Washington Dulles Intl. Airport (IAD)?
Depart with United Airlines from GCM to IAD and touch down at the time printed on your plane ticket. This airline clinches first place on this route, with an on-time score of 81%. If there is a disruption to your flight, the Expedia App is the best way to stay updated. Download it and receive immediate trip updates, from flight delays to gate number changes.
What airports do you fly into for Washington from George Town?
From George Town, you can journey to Washington through Washington Dulles Intl. Airport (IAD), Ronald Reagan Washington National Airport (DCA) and Baltimore Washington Intl. Thurgood Marshall Airport (BWI). Check which hub works best for you before you make a decision. If you opt for Washington Dulles Intl. Airport (IAD), it’s roughly 25 mi west of downtown. Use the dough you save when booking your journey with Expedia to visit the city’s well-known sights, such as White House and United States Capitol.
What are the most popular departure times for flights from Owen Roberts Intl. Airport (GCM) to IAD?
The most popular departure times for trips from Owen Roberts Intl. Airport (GCM) to Dulles Intl. Airport fall between 4:00 PM - 5:00 PM on United Airlines. Our recommendation is to jet off in the morning. The earlier you set off, the better your odds of a delay-free flight with less air traffic in the skies.
Can I change the date of my flight from Owen Roberts Intl. Airport to Dulles Intl. Airport?
It’s so easy to make amendments to your GCM to Dulles Intl. Airport trip yourself. Just go to the Expedia Trips portal and tap “change flight.” Look around for new flights and choose the one that better fits your plans. You’ll see an estimate of any flight change fees. You can also find your way to our Customer Service portal to chat to our Virtual Agent and quickly get answers to your questions.

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*Available to One Key members.