$783 Cheap Flights from Washington (IAD) to Guernsey (GCI)

View $783 flight on Wed, Oct 1, 2025Opens in a new window

Popular airlines from Washington Dulles Intl. Airport (IAD) to Guernsey (GCI)

Cheap Flights from Washington to Guernsey (IAD-GCI)

Prices were available within the past 7 days and start at $783 for one-way flights and $1,002 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

British Airways
Tue, Nov 4 - Tue, Nov 11
IAD
Washington
GCI
Guernsey
$1,002 Roundtrip, found 16 hours ago
$1,002
Roundtrip
found 16 hours ago
Select British Airways flight, departing Tue, Nov 4 from Washington to Guernsey, returning Tue, Nov 11, priced at $1,002 found 16 hours ago
British Airways
Thu, Feb 19 - Mon, Feb 23
IAD
Washington
GCI
Guernsey
$1,002 Roundtrip, found 1 day ago
$1,002
Roundtrip
found 1 day ago
Select British Airways flight, departing Thu, Feb 19 from Washington to Guernsey, returning Mon, Feb 23, priced at $1,002 found 1 day ago
British Airways
Thu, Feb 19 - Mon, Feb 23
IAD
Washington
GCI
Guernsey
$1,015 Roundtrip, found 1 day ago
$1,015
Roundtrip
found 1 day ago
Select British Airways flight, departing Thu, Feb 19 from Washington to Guernsey, returning Mon, Feb 23, priced at $1,015 found 1 day ago
British Airways
Thu, Feb 19 - Mon, Feb 23
IAD
Washington
GCI
Guernsey
$1,019 Roundtrip, found 1 day ago
$1,019
Roundtrip
found 1 day ago
Select British Airways flight, departing Thu, Feb 19 from Washington to Guernsey, returning Mon, Feb 23, priced at $1,019 found 1 day ago
British Airways
Thu, Feb 19 - Mon, Feb 23
IAD
Washington
GCI
Guernsey
$1,032 Roundtrip, found 1 day ago
$1,032
Roundtrip
found 1 day ago
Select British Airways flight, departing Thu, Feb 19 from Washington to Guernsey, returning Mon, Feb 23, priced at $1,032 found 1 day ago
British Airways
Mon, Sep 29 - Tue, Oct 7
IAD
Washington
GCI
Guernsey
$1,129 Roundtrip, found 5 days ago
$1,129
Roundtrip
found 5 days ago
Select British Airways flight, departing Mon, Sep 29 from Washington to Guernsey, returning Tue, Oct 7, priced at $1,129 found 5 days ago
British Airways
Thu, Oct 2 - Tue, Oct 7
IAD
Washington
GCI
Guernsey
$1,179 Roundtrip, found 5 days ago
$1,179
Roundtrip
found 5 days ago
Select British Airways flight, departing Thu, Oct 2 from Washington to Guernsey, returning Tue, Oct 7, priced at $1,179 found 5 days ago
British Airways
Tue, Nov 4 - Tue, Nov 11
IAD
Washington
GCI
Guernsey
$1,227 Roundtrip, found 16 hours ago
$1,227
Roundtrip
found 16 hours ago
Select British Airways flight, departing Tue, Nov 4 from Washington to Guernsey, returning Tue, Nov 11, priced at $1,227 found 16 hours ago
British Airways
Thu, Feb 19 - Mon, Feb 23
IAD
Washington
GCI
Guernsey
$1,227 Roundtrip, found 1 day ago
$1,227
Roundtrip
found 1 day ago
Select British Airways flight, departing Thu, Feb 19 from Washington to Guernsey, returning Mon, Feb 23, priced at $1,227 found 1 day ago
British Airways
Thu, Feb 19 - Mon, Feb 23
IAD
Washington
GCI
Guernsey
$1,240 Roundtrip, found 1 day ago
$1,240
Roundtrip
found 1 day ago
Select British Airways flight, departing Thu, Feb 19 from Washington to Guernsey, returning Mon, Feb 23, priced at $1,240 found 1 day ago
British Airways
Thu, Feb 19 - Mon, Feb 23
IAD
Washington
GCI
Guernsey
$1,244 Roundtrip, found 1 day ago
$1,244
Roundtrip
found 1 day ago
Select British Airways flight, departing Thu, Feb 19 from Washington to Guernsey, returning Mon, Feb 23, priced at $1,244 found 1 day ago
British Airways
Wed, Oct 1 - Mon, Oct 6
IAD
Washington
GCI
Guernsey
$1,250 Roundtrip, found 5 days ago
$1,250
Roundtrip
found 5 days ago
Select British Airways flight, departing Wed, Oct 1 from Washington to Guernsey, returning Mon, Oct 6, priced at $1,250 found 5 days ago
British Airways
Thu, Feb 19 - Mon, Feb 23
IAD
Washington
GCI
Guernsey
$1,257 Roundtrip, found 1 day ago
$1,257
Roundtrip
found 1 day ago
Select British Airways flight, departing Thu, Feb 19 from Washington to Guernsey, returning Mon, Feb 23, priced at $1,257 found 1 day ago
British Airways
Wed, Oct 1 - Mon, Oct 6
IAD
Washington
GCI
Guernsey
$1,262 Roundtrip, found 5 days ago
$1,262
Roundtrip
found 5 days ago
Select British Airways flight, departing Wed, Oct 1 from Washington to Guernsey, returning Mon, Oct 6, priced at $1,262 found 5 days ago
British Airways
Wed, Oct 1 - Mon, Oct 6
IAD
Washington
GCI
Guernsey
$1,266 Roundtrip, found 5 days ago
$1,266
Roundtrip
found 5 days ago
Select British Airways flight, departing Wed, Oct 1 from Washington to Guernsey, returning Mon, Oct 6, priced at $1,266 found 5 days ago
British Airways
Mon, Sep 29 - Mon, Oct 6
IAD
Washington
GCI
Guernsey
$1,278 Roundtrip, found 5 days ago
$1,278
Roundtrip
found 5 days ago
Select British Airways flight, departing Mon, Sep 29 from Washington to Guernsey, returning Mon, Oct 6, priced at $1,278 found 5 days ago
British Airways
Wed, Oct 1 - Mon, Oct 6
IAD
Washington
GCI
Guernsey
$1,279 Roundtrip, found 5 days ago
$1,279
Roundtrip
found 5 days ago
Select British Airways flight, departing Wed, Oct 1 from Washington to Guernsey, returning Mon, Oct 6, priced at $1,279 found 5 days ago
British Airways
Sun, Sep 28 - Tue, Oct 7
IAD
Washington
GCI
Guernsey
$1,296 Roundtrip, found 5 days ago
$1,296
Roundtrip
found 5 days ago
Select British Airways flight, departing Sun, Sep 28 from Washington to Guernsey, returning Tue, Oct 7, priced at $1,296 found 5 days ago

Frequently asked questions

How much does a flight from Washington Dulles Intl. Airport (IAD) to Guernsey Airport (GCI) cost?
Lock in a cheap one-way flight from $783 or cheap return flight from $1,002 from Washington Dulles Intl. Airport (IAD) to Guernsey Airport (GCI) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Washington Dulles Intl. Airport (IAD) to Guernsey Airport (GCI)?
The cheapest month to fly from IAD to GCI is November, when demand is low. Off-peak season is typically when you'll find lower airfares between these airports.
What is the cheapest airline that flies from Washington Dulles Intl. Airport (IAD) to Guernsey Airport (GCI)?
Use the filters on Expedia to compare different airlines and find the most affordable carrier that'll fly you from IAD to GCI. Then, sort your results by "Price (lowest to highest)" to pick up a great deal.
How many flights per day from Washington Dulles Intl. Airport (IAD) to Guernsey Airport (GCI)?
There aren't any daily direct flights from Washington Dulles Intl. Airport (IAD) to Guernsey Airport (GCI). But you can choose flights with layovers. Filter your search on Expedia to include one or more stops, and you'll be on your way before you know it.
What day of the week has the most flights from IAD to GCI?
You'll usually find Tuesday the quietest day for flights, while Fridays are often the busiest.* However this can change from season to season and during peak travel times or public holidays.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Washington Dulles Intl. Airport (IAD) to Guernsey Airport (GCI)?
To avoid possible delays on the Washington Dulles Intl. Airport (IAD) to Guernsey Airport (GCI) route, aim to travel before 3 PM. Departures after this hour are 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 Washington Dulles Intl. Airport (IAD) to Guernsey Airport (GCI) last-minute?
Last-minute bookings from IAD to GCI are usually more expensive. To secure the lowest rates, start searching for flights as soon as possible. That being said, if you can play around with your travel dates, you may find a cheap ticket right before you leave.
Is it cheaper to book an IAD to GCI flight and hotel package?
Opting for an IAD to GCI flight and hotel package tends to be cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your trip in one place. Choose from our extensive range of stays and then add car rentals, flights and activities to your booking. Bundle it all together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Washington Dulles Intl. Airport (IAD) to Guernsey Airport (GCI)?
Typically, it's possible to cancel or reschedule your IAD to GCI flight. However, if it's been more than 24 hours since booking, additional charges may apply. Refer to your airline's policies in your itinerary to see what changes are possible and if any costs are involved. You'll also find further details on our Customer Service portal.

Travel information

Travel information

Origin airport
Washington Dulles Intl.
Destination airport
Guernsey
Roundtrip price
$1,001
Distance
3622 mi

Book with confidence

Book with confidence

Washington to Guernsey Flights

The cheapest times to fly from Washington to Guernsey

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

 

The best time to book a flight from Washington to Guernsey

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

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 Washington to Guernsey in 2025. You can also book with separate airlines for your outbound and return journeys, from $783 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 Washington to Guernsey 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 Washington to Guernsey 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.

 

Washington to Guernsey Flights
*Available to One Key members.