$718 Cheap Flights from Washington (IAD) to Guernsey (GCI)

View $718 flight on Mon, Oct 6, 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 $718 for one-way flights and $1,004 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

British Airways
Wed, Feb 4 - Wed, Feb 18
IAD
Washington
GCI
Guernsey
$1,004 Roundtrip, found 9 hours ago
$1,004
Roundtrip
found 9 hours ago
Select British Airways flight, departing Wed, Feb 4 from Washington to Guernsey, returning Wed, Feb 18, priced at $1,004 found 9 hours ago
British Airways
Wed, Nov 12 - Tue, Nov 18
IAD
Washington
GCI
Guernsey
$1,098 Roundtrip, found 5 days ago
$1,098
Roundtrip
found 5 days ago
Select British Airways flight, departing Wed, Nov 12 from Washington to Guernsey, returning Tue, Nov 18, priced at $1,098 found 5 days ago
British Airways
Wed, Nov 12 - Tue, Nov 18
IAD
Washington
GCI
Guernsey
$1,111 Roundtrip, found 5 days ago
$1,111
Roundtrip
found 5 days ago
Select British Airways flight, departing Wed, Nov 12 from Washington to Guernsey, returning Tue, Nov 18, priced at $1,111 found 5 days ago
British Airways
Wed, Feb 4 - Wed, Feb 18
IAD
Washington
GCI
Guernsey
$1,117 Roundtrip, found 9 hours ago
$1,117
Roundtrip
found 9 hours ago
Select British Airways flight, departing Wed, Feb 4 from Washington to Guernsey, returning Wed, Feb 18, priced at $1,117 found 9 hours ago
British Airways
Sun, Sep 14 - Sun, Sep 21
IAD
Washington
GCI
Guernsey
$1,242 Roundtrip, found 5 days ago
$1,242
Roundtrip
found 5 days ago
Select British Airways flight, departing Sun, Sep 14 from Washington to Guernsey, returning Sun, Sep 21, priced at $1,242 found 5 days ago
British Airways
Wed, Aug 13 - Wed, Aug 20
IAD
Washington
GCI
Guernsey
$1,246 Roundtrip, found 2 days ago
$1,246
Roundtrip
found 2 days ago
Select British Airways flight, departing Wed, Aug 13 from Washington to Guernsey, returning Wed, Aug 20, priced at $1,246 found 2 days ago
British Airways
Sun, Sep 14 - Sun, Sep 21
IAD
Washington
GCI
Guernsey
$1,254 Roundtrip, found 5 days ago
$1,254
Roundtrip
found 5 days ago
Select British Airways flight, departing Sun, Sep 14 from Washington to Guernsey, returning Sun, Sep 21, priced at $1,254 found 5 days ago
British Airways
Wed, Aug 13 - Fri, Aug 22
IAD
Washington
GCI
Guernsey
$1,262 Roundtrip, found 2 days ago
$1,262
Roundtrip
found 2 days ago
Select British Airways flight, departing Wed, Aug 13 from Washington to Guernsey, returning Fri, Aug 22, priced at $1,262 found 2 days ago
British Airways
Thu, Aug 14 - Thu, Aug 21
IAD
Washington
GCI
Guernsey
$1,296 Roundtrip, found 2 days ago
$1,296
Roundtrip
found 2 days ago
Select British Airways flight, departing Thu, Aug 14 from Washington to Guernsey, returning Thu, Aug 21, priced at $1,296 found 2 days ago
British Airways
Thu, Aug 14 - Fri, Aug 22
IAD
Washington
GCI
Guernsey
$1,312 Roundtrip, found 2 days ago
$1,312
Roundtrip
found 2 days ago
Select British Airways flight, departing Thu, Aug 14 from Washington to Guernsey, returning Fri, Aug 22, priced at $1,312 found 2 days ago

Alternative airports near Forest

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

Select flight to Guernsey GCI. Cheapest option available. Flights from $1,347
GCI
Guernsey
Cheapest
Flights from $1,347
Flights from Washington (IAD) to Guernsey (GCI)
Origin airport
Washington Dulles Intl.
Destination airport
Guernsey
Roundtrip price
$1,004
Distance
3622 mi

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 February. 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 $718 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.

 

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 $718 or cheap return flight from $1,004 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 February, 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.

Explore a world of travel with Expedia

*Available to One Key members.