In terms of precipitation, rainfall in Washington, D.C. Dulles Intl Airport ranges from 2.6 - 4.0 inches per month. May is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit Washington, D.C. Dulles Intl Airport when rainfall is around 2.6 in.

If weather is an important factor for your trip to Washington, D.C. Dulles Intl Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

What is the cheapest time of day to fly from LAW to IAD?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Grand Cayman to Washington, D.C. Dulles Intl Airport as you normally would.

Can I find deals for flights from Grand Cayman to Dulles Intl that include hotel bookings?

Yes. In addition to deals on Grand Cayman to Dulles Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Grand Cayman to Dulles Intl?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Grand Cayman to Dulles Intl.

Can I find deals for business class flights from Grand Cayman to Dulles Intl?

Yes. Cheapflights offers flight deals from Grand Cayman to Dulles Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

Find Cheap Flights from Grand Cayman to Washington, D.C. Dulles Intl Airport

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Find flight deals from Grand Cayman to Dulles Intl

Round-trip from	$367 (Justfly.com)
One-way from	$232 (American Airlines)

From Grand Cayman to Washington, D.C. Dulles Intl

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Reviews of airlines servicing Dulles Intl

Read through reviews of airlines operating flights from Grand Cayman to Washington, D.C. Dulles Intl Airport, such as United Airlines. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

United Airlines

7.4

Good

10,201 reviews

Reviews

1 / 20

10.0

Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

United Airlines

7.4

Good

10,201 reviews

United Airlines

7.4

Good

10,201 reviews

Reviews

1 / 20

10.0

Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

Related info for your journey

How long is the flight from Grand Cayman to Washington, D.C. Dulles Intl Airport?
A quick flight from Grand Cayman to Washington, D.C. Dulles Intl Airport can take about 31h 13m. Air Canada provides one of the quickest options available for as low as $388. Grand Cayman and Washington, D.C. Dulles Intl Airport are separated by a distance of 1377 mi.
Can I find deals for flights from Grand Cayman to Dulles Intl that include hotel bookings?
Yes. In addition to deals on Grand Cayman to Dulles Intl flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Grand Cayman to Dulles Intl?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Grand Cayman to Dulles Intl.
Can I find deals for business class flights from Grand Cayman to Dulles Intl?
Yes. Cheapflights offers flight deals from Grand Cayman to Dulles Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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Top airline flying from Grand Cayman to Dulles Intl

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	Cheapest$313	Average$413	FlexibilityNo cancel fee	On-time69%

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Find cheap flights from Grand Cayman to Dulles Intl with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Find flight deals from Grand Cayman to Dulles Intl

Round-trip from

One-way from

Reviews of airlines servicing Dulles Intl

Read through reviews of airlines operating flights from Grand Cayman to Washington, D.C. Dulles Intl Airport, such as United Airlines. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

How long is the flight from Grand Cayman to Washington, D.C. Dulles Intl Airport?

Can I find deals for flights from Grand Cayman to Dulles Intl that include hotel bookings?

How can I find direct flights from Grand Cayman to Dulles Intl?

Can I find deals for business class flights from Grand Cayman to Dulles Intl?

Traveling to a place near Washington, D.C. Dulles Intl Airport?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Complete your trip

Complete your trip to Dulles Intl by adding a car rental and/or hotel reservation to your travel itinerary.

Other flights to Dulles Intl

Explore flights to Dulles Intl departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on September 11, 2026.

Search flights from Grand Cayman to Dulles Intl by cabin class

Find flights from Grand Cayman to Dulles Intl, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Grand Cayman and Dulles Intl flights

Browse other Grand Cayman and Dulles Intl flight options. Last updated on September 11, 2026.

Popular flight searches

Check out other popular destinations found by fellow travelers in 2026

Top airline flying from Grand Cayman to Dulles Intl

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Cheap flights from Grand Cayman to Dulles Intl (IAD)

Find cheap flights from Grand Cayman to Dulles Intl with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Find flight deals from Grand Cayman to Dulles Intl

Round-trip from

One-way from

Reviews of airlines servicing Dulles Intl

Read through reviews of airlines operating flights from Grand Cayman to Washington, D.C. Dulles Intl Airport, such as United Airlines. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

How long is the flight from Grand Cayman to Washington, D.C. Dulles Intl Airport?

Can I find deals for flights from Grand Cayman to Dulles Intl that include hotel bookings?

How can I find direct flights from Grand Cayman to Dulles Intl?

Can I find deals for business class flights from Grand Cayman to Dulles Intl?

Traveling to a place near Washington, D.C. Dulles Intl Airport?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Complete your trip

Complete your trip to Dulles Intl by adding a car rental and/or hotel reservation to your travel itinerary.

Other flights to Dulles Intl

Explore flights to Dulles Intl departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on September 11, 2026.

Search flights from Grand Cayman to Dulles Intl by cabin class

Find flights from Grand Cayman to Dulles Intl, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Grand Cayman and Dulles Intl flights

Browse other Grand Cayman and Dulles Intl flight options. Last updated on September 11, 2026.

Popular flight searches

Check out other popular destinations found by fellow travelers in 2026

Top airline flying from Grand Cayman to Dulles Intl

100% Free

Book with Flexibility

Travel Smart