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 LCH to IAD?

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

Most accurate provider : When it comes to deals on Lake Charles-Washington, D.C. Dulles Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Lake Charles-Washington, D.C. Dulles Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Lake Charles-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 Lake Charles-Washington, D.C. Dulles Intl Airport flights, Cheapflights users trust FlightHub the most. FlightHub 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 Lake Charles-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 Lake Charles to Washington, D.C. Dulles Intl?

Lake Charles (LCH), located 6.1 mi from the city center, is the airport you fly out of when you book flights from Lake Charles to Washington, D.C. Dulles Intl. 0 airlines have flights from Lake Charles to Washington, D.C. Dulles Intl on a regular basis. Booking flights from Lake Charles to Washington, D.C. Dulles Intl should not be difficult; the airport handles an average of 0 outbound flights to Washington, D.C. Dulles Intl per day.

Can I find deals for flights from Lake Charles to Dulles Intl that include hotel bookings?

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

How can I find direct flights from Lake Charles to Dulles Intl?

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

Can I find deals for business class flights from Lake Charles to Dulles Intl?

Yes. Cheapflights offers flight deals from Lake Charles 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.

$319+ Cheap Flights from Lake Charles to Washington, D.C. Dulles Intl Airport

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Cheap flight deals from Lake Charles to Dulles Intl

Cheapest

Best

Last-minute

One-way

Cheapest flights from Lake Charles to Dulles Intl
Explore the most affordable flight options available from Lake Charles to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 10, 2026.

Wed 10/74:07 pm -

1 stop7h 23m

Wed 10/146:15 am -

1 stop5h 28m

Deal found 9/7

$349

Wed 10/712:15 pm -

1 stop5h 47m

Sun 10/116:15 am -

1 stop5h 28m

Deal found 9/7

$429

Sun 10/44:07 pm -

1 stop7h 23m

Sat 10/103:02 pm -

1 stop7h 04m

Deal found 9/5

$439

Thu 10/84:07 pm -

1 stop7h 23m

Sun 10/116:15 am -

1 stop5h 28m

Deal found 9/8

$460

Tue 10/66:00 am -

1 stop7h 18m

Sat 10/103:08 pm -

1 stop8h 38m

Deal found 9/5

$473

Sat 10/310:52 am -

1 stop8h 32m

Wed 10/71:23 pm -

2 stops10h 23m

Deal found 9/5

$501

Fri 10/94:07 pm -

1 stop7h 23m

Mon 10/126:15 am -

1 stop5h 28m

Deal found 9/7

$519

Sat 10/310:52 am -

1 stop8h 32m

Sat 10/103:08 pm -

1 stop8h 38m

Deal found 9/5

$520

Thu 10/84:07 pm -

1 stop7h 23m

Mon 10/126:15 am -

1 stop5h 28m

Deal found 9/8

$540

Best flights from Lake Charles to Dulles Intl
Discover carefully curated flight deals from Lake Charles to Dulles Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 10, 2026.

Sat 1/92:31 pm -

1 stop5h 41m

Thu 1/218:25 am -

1 stop6h 27m

Deal found 9/7

$349

Sat 2/274:15 pm -

1 stop5h 21m

Wed 3/35:15 pm -

1 stop5h 17m

Deal found 9/9

$419

Wed 10/74:07 pm -

1 stop5h 23m

Sat 10/103:02 pm -

1 stop7h 04m

Deal found 9/5

$439

Sun 10/44:07 pm -

1 stop7h 23m

Sat 10/103:02 pm -

1 stop7h 04m

Deal found 9/5

$439

Thu 10/84:07 pm -

1 stop7h 23m

Sun 10/116:15 am -

1 stop5h 28m

Deal found 9/7

$483

Fri 12/254:13 pm -

1 stop5h 28m

Mon 12/288:27 am -

1 stop7h 59m

Deal found 9/8

$583

Last-minute flights from Lake Charles to Dulles Intl
Discover last-minute flight deals from Lake Charles to Dulles Intl. Data last updated September 10, 2026 and is based on user searches.

Sat 10/310:52 am -

1 stop8h 32m

Wed 10/71:23 pm -

2 stops10h 23m

Deal found 9/5

$501

Sat 10/310:52 am -

1 stop8h 32m

Sat 10/103:08 pm -

1 stop8h 38m

Deal found 9/5

$520

Sun 10/44:07 pm -

1 stop7h 23m

Sat 10/103:02 pm -

1 stop7h 04m

Deal found 9/5

$439

Tue 10/66:00 am -

1 stop7h 18m

Sat 10/103:08 pm -

1 stop8h 38m

Deal found 9/5

$473

Wed 10/74:07 pm -

1 stop7h 23m

Wed 10/146:15 am -

1 stop5h 28m

Deal found 9/7

$349

Wed 10/712:15 pm -

1 stop5h 47m

Sun 10/116:15 am -

1 stop5h 28m

Deal found 9/7

$429

Thu 10/84:07 pm -

1 stop7h 23m

Sun 10/116:15 am -

1 stop5h 28m

Deal found 9/8

$460

Thu 10/84:07 pm -

1 stop7h 23m

Mon 10/126:15 am -

1 stop5h 28m

Deal found 9/8

$540

Fri 10/94:07 pm -

1 stop7h 23m

Mon 10/126:15 am -

1 stop5h 28m

Deal found 9/7

$519

Find flight deals from Lake Charles to Dulles Intl

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$349 (United Airlines)
One-way from	$319 (United Airlines)

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

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

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One-way flight from Lake Charles to Washington, D.C. Dulles Intl

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Cheapflights Fare Finder

Use the filters below to find and compare flights from Lake Charles to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

Lake CharlesWashington, D.C.

LCH Lake Charles - IAD Washington, D.C. Dulles Intl

LCHIAD

Lake Charles

Tue 10/6

12:15 pm-7:02 pm

1 stop5h 47m

Washington, D.C. Dulles Intl

Wed 12/31

12:00 am-11:00 pm

Nonstop0h 00m

$319

Lake CharlesWashington, D.C.

LCH Lake Charles - IAD Washington, D.C. Dulles Intl

LCHIAD

Lake Charles

Sat 1/9

2:31 pm-9:12 pm

1 stop5h 41m

Washington, D.C. Dulles Intl

Thu 1/21

8:25 am-1:52 pm

1 stop6h 27m

$349

Lake CharlesWashington, D.C.

LCH Lake Charles - IAD Washington, D.C. Dulles Intl

LCHIAD

Lake Charles

Sat 2/27

4:15 pm-10:36 pm

1 stop5h 21m

Washington, D.C. Dulles Intl

Wed 3/3

5:15 pm-9:32 pm

1 stop5h 17m

$419

Lake CharlesWashington, D.C.

LCH Lake Charles - IAD Washington, D.C. Dulles Intl

LCHIAD

Lake Charles

Wed 10/7

4:07 pm-10:30 pm

1 stop5h 23m

Washington, D.C. Dulles Intl

Sat 10/10

3:02 pm-9:06 pm

1 stop7h 04m

$439

Lake CharlesWashington, D.C.

LCH Lake Charles - IAD Washington, D.C. Dulles Intl

LCHIAD

Lake Charles

Sun 10/4

4:07 pm-12:30 am

1 stop7h 23m

Washington, D.C. Dulles Intl

Sat 10/10

3:02 pm-9:06 pm

1 stop7h 04m

$439

Lake CharlesWashington, D.C.

LCH Lake Charles - IAD Washington, D.C. Dulles Intl

LCHIAD

Lake Charles

Thu 10/8

4:07 pm-12:30 am

1 stop7h 23m

Washington, D.C. Dulles Intl

Sun 10/11

6:15 am-10:43 am

1 stop5h 28m

$483

Lake CharlesWashington, D.C.

LCH Lake Charles - IAD Washington, D.C. Dulles Intl

LCHIAD

Lake Charles

Fri 12/25

4:13 pm-10:41 pm

1 stop5h 28m

Washington, D.C. Dulles Intl

Mon 12/28

8:27 am-3:26 pm

1 stop7h 59m

$583

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/5

Sorted by cheapest first

Most accurate provider: When it comes to deals on Lake Charles-Washington, D.C. Dulles Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Lake Charles-Washington, D.C. Dulles Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Lake Charles-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 Lake Charles-Washington, D.C. Dulles Intl Airport flights, Cheapflights users trust FlightHub the most. FlightHub 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 Lake Charles-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 Lake Charles to Dulles Intl

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

LCH-IAD

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 Lake Charles to Washington, D.C. Dulles Intl?
Lake Charles (LCH), located 6.1 mi from the city center, is the airport you fly out of when you book flights from Lake Charles to Washington, D.C. Dulles Intl. 0 airlines have flights from Lake Charles to Washington, D.C. Dulles Intl on a regular basis. Booking flights from Lake Charles to Washington, D.C. Dulles Intl should not be difficult; the airport handles an average of 0 outbound flights to Washington, D.C. Dulles Intl per day.
How long is the flight from Lake Charles to Washington, D.C. Dulles Intl Airport?
There are many flights that can get you from Lake Charles to Washington, D.C. Dulles Intl Airport in 5h 41m. Fly via United Airlines to get the fastest option. The distance from Lake Charles to Washington, D.C. Dulles Intl Airport is about 1082 mi.
Can I find deals for flights from Lake Charles to Dulles Intl that include hotel bookings?
Yes. In addition to deals on Lake Charles to Dulles Intl flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Lake Charles to Dulles Intl?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Lake Charles to Dulles Intl.
Can I find deals for business class flights from Lake Charles to Dulles Intl?
Yes. Cheapflights offers flight deals from Lake Charles 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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$319+ Cheap flights from Lake Charles (LCH) to Dulles Intl (IAD)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/6. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Lake Charles to Dulles Intl with Cheapflights

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Cheap flight deals from Lake Charles to Dulles Intl

Cheapest flights from Lake Charles to Dulles IntlExplore the most affordable flight options available from Lake Charles to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 10, 2026.

Explore the most affordable flight options available from Lake Charles to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 10, 2026.

Best flights from Lake Charles to Dulles IntlDiscover carefully curated flight deals from Lake Charles to Dulles Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 10, 2026.

Discover carefully curated flight deals from Lake Charles to Dulles Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 10, 2026.

Last-minute flights from Lake Charles to Dulles IntlDiscover last-minute flight deals from Lake Charles to Dulles Intl. Data last updated September 10, 2026 and is based on user searches.

Discover last-minute flight deals from Lake Charles to Dulles Intl. Data last updated September 10, 2026 and is based on user searches.

One-way flights from Lake Charles to Dulles IntlSearch for one-way flight options from Lake Charles to Dulles Intl. Find affordable one-way fares based on user searches. Data last updated September 10, 2026.

Search for one-way flight options from Lake Charles to Dulles Intl. Find affordable one-way fares based on user searches. Data last updated September 10, 2026.

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Use the filters below to find and compare flights from Lake Charles to Washington, D.C. Dulles Intl Airport that are best for you.

Best time to book a flight from Lake Charles to Dulles Intl

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

Related info for your journey

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

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

Can I find deals for flights from Lake Charles to Dulles Intl that include hotel bookings?

How can I find direct flights from Lake Charles to Dulles Intl?

Can I find deals for business class flights from Lake Charles to Dulles Intl?

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

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Alternative routes for Lake Charles to Dulles Intl

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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 10, 2026.

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Lake Charles and Dulles Intl flights

Browse other Lake Charles and Dulles Intl flight options. Last updated on September 10, 2026.

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Cheapest flights from Lake Charles to Dulles Intl
Explore the most affordable flight options available from Lake Charles to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 10, 2026.

Best flights from Lake Charles to Dulles Intl
Discover carefully curated flight deals from Lake Charles to Dulles Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 10, 2026.

Last-minute flights from Lake Charles to Dulles Intl
Discover last-minute flight deals from Lake Charles to Dulles Intl. Data last updated September 10, 2026 and is based on user searches.

One-way flights from Lake Charles to Dulles Intl
Search for one-way flight options from Lake Charles to Dulles Intl. Find affordable one-way fares based on user searches. Data last updated September 10, 2026.