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 CAP to IAD?

When flying from Cap Haitien to Washington, D.C. Dulles Intl Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Most accurate provider : When it comes to deals on Cap Haitien-Washington, D.C. Dulles Intl Airport flights, users find the pricing of Expedia to be most consistent on Cheapflights vs. Expedia Users can find the same prices on Cap Haitien-Washington, D.C. Dulles Intl Airport flight deals on Cheapflights vs. Expedia 90-95% of the time. Price accuracy is based on data collected from Cap Haitien-Washington, D.C. Dulles Intl Airport flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on Cap Haitien-Washington, D.C. Dulles Intl Airport flights, Cheapflights users trust Expedia the most. Expedia has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Cap Haitien-Washington, D.C. Dulles Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

What airport do you fly from for flights from Cap Haitien to Washington, D.C. Dulles Intl?

For a flight from Cap Haitien to Washington, D.C. Dulles Intl, you will be flying from Cap Haitien. Cap Haitien (CAP) is just 1.1 mi from the center of the city. Cap Haitien is the only Cap Haitien airport and it handles 0 outbound flights to Washington, D.C. Dulles Intl per day. 0 airlines have flights to Washington, D.C. Dulles Intl from Cap Haitien on a regular basis.

Can I find deals for flights from Cap Haitien to Dulles Intl that include hotel bookings?

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

How can I find direct flights from Cap Haitien to Dulles Intl?

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

Can I find deals for business class flights from Cap Haitien to Dulles Intl?

Yes. Cheapflights offers flight deals from Cap Haitien 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 Cap Haitien to Washington, D.C. Dulles Intl Airport

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Cheap flight deals from Cap Haitien to Dulles Intl

Most accurate provider	Expedia 2 stars
Most trusted provider	Expedia 3 stars

Provider with most accurate pricing for Cap Haitien-Washington, D.C. Dulles Intl flight deals.

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Provider most trusted by Cheapflights users for Cap Haitien-Washington, D.C. Dulles Intl flights.

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Most accurate provider: When it comes to deals on Cap Haitien-Washington, D.C. Dulles Intl Airport flights, users find the pricing of Expedia to be most consistent on Cheapflights vs. Expedia Users can find the same prices on Cap Haitien-Washington, D.C. Dulles Intl Airport flight deals on Cheapflights vs. Expedia 90-95% of the time. Price accuracy is based on data collected from Cap Haitien-Washington, D.C. Dulles Intl Airport flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on Cap Haitien-Washington, D.C. Dulles Intl Airport flights, Cheapflights users trust Expedia the most. Expedia has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Cap Haitien-Washington, D.C. Dulles Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Cap Haitien to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Cap Haitien with our price prediction graph.

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Related info for your journey

What airport do you fly from for flights from Cap Haitien to Washington, D.C. Dulles Intl?
For a flight from Cap Haitien to Washington, D.C. Dulles Intl, you will be flying from Cap Haitien. Cap Haitien (CAP) is just 1.1 mi from the center of the city. Cap Haitien is the only Cap Haitien airport and it handles 0 outbound flights to Washington, D.C. Dulles Intl per day. 0 airlines have flights to Washington, D.C. Dulles Intl from Cap Haitien on a regular basis.
Can I find deals for flights from Cap Haitien to Dulles Intl that include hotel bookings?
Yes. In addition to deals on Cap Haitien to Dulles Intl flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Cap Haitien to Dulles Intl?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Cap Haitien to Dulles Intl.
Can I find deals for business class flights from Cap Haitien to Dulles Intl?
Yes. Cheapflights offers flight deals from Cap Haitien 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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Find cheap flights from Cap Haitien to Dulles Intl with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Cap Haitien to Dulles Intl

Most accurate provider

Most trusted provider

Best time to book a flight from Cap Haitien to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Cap Haitien with our price prediction graph.

Related info for your journey

Find useful and relevant information for your journey from Cap Haitien to Dulles Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What airport do you fly from for flights from Cap Haitien to Washington, D.C. Dulles Intl?

Can I find deals for flights from Cap Haitien to Dulles Intl that include hotel bookings?

How can I find direct flights from Cap Haitien to Dulles Intl?

Can I find deals for business class flights from Cap Haitien 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.

Alternative routes for Cap Haitien to Dulles Intl

See prices for flight routes from nearby airports that may be better suited for you.

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 October 28, 2025.

Search flights from Cap Haitien to Dulles Intl by cabin class

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

Cap Haitien and Dulles Intl flights

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Other flights from Cap Haitien

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Cheap flights from Cap Haitien (CAP) to Dulles Intl (IAD)

Find cheap flights from Cap Haitien to Dulles Intl with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Cap Haitien to Dulles Intl

Most accurate provider

Most trusted provider

Best time to book a flight from Cap Haitien to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Cap Haitien with our price prediction graph.

Related info for your journey

Find useful and relevant information for your journey from Cap Haitien to Dulles Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What airport do you fly from for flights from Cap Haitien to Washington, D.C. Dulles Intl?

Can I find deals for flights from Cap Haitien to Dulles Intl that include hotel bookings?

How can I find direct flights from Cap Haitien to Dulles Intl?

Can I find deals for business class flights from Cap Haitien 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.

Alternative routes for Cap Haitien to Dulles Intl

See prices for flight routes from nearby airports that may be better suited for you.

100% Free

Book with Flexibility

Travel Smart