What are the most reliable airlines from New York LaGuardia Airport to Washington, D.C. Dulles Intl Airport?

No one likes to see their flight delayed. When booking a flight from New York LaGuardia Airport to Washington, D.C. Dulles Intl Airport consider choosing ANA (89%), Avianca (87%) or Republic Airways (83%) as they are the most reliable in getting you off to your destination on time.

What is the cheapest day to fly round-trip from New York LaGuardia Airport to Washington, D.C. Dulles Intl Airport?

Departing on a Thursday is a good option for securing a great price. You can expect to save up to 28% when planning your travel around this day of the week.

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

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

How can I find direct flights from LaGuardia to Dulles Intl?

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

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

Yes. Cheapflights offers flight deals from LaGuardia 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.

$65+ Flights from New York LaGuardia Airport, NY to Washington, D.C. Dulles Intl Airport

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Cheap flight deals from LaGuardia to Dulles Intl

Round-trip from	$129 (United Airlines)
One-way from	$65 (United Airlines)
Popular in	November
Cheapest in	April
Average price	$293
Good round-trip deal	$307 or less
Good one-way deal	$168 or less

From New York LaGuardia to Washington, D.C. Dulles Intl

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One-way flight from New York LaGuardia to Washington, D.C. Dulles Intl

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Highest demand for flights based on searches. 12% potential increase in price ($42 potential increase over avg. RT price).

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Cheapest flight prices on average. 3% potential price decrease ($10 potential savings vs. average RT price).

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Average for round-trip flights in June 2025

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Price to beat on a round-trip flight from New York LaGuardia to Washington, D.C. Dulles Intl.

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Price to beat on a one-way flight from New York LaGuardia to Washington, D.C. Dulles Intl.

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Find flight deals from LaGuardia to Dulles Intl

Cheapest flights from LaGuardia to Dulles Intl
Explore the most affordable flight options available from LaGuardia to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.

Thu 7/106:00 amLGA - IAD

Nonstop1h 27mUnited Airlines

Sat 7/125:11 pmIAD - LGA

Nonstop1h 33mUnited Airlines

Deal found 6/11

$129

Thu 6/126:30 amLGA - IAD

1 stop9h 06mFrontier

Sat 6/144:16 pmIAD - LGA

1 stop7h 10mFrontier

Deal found 6/11

$228

Wed 7/911:09 amLGA - IAD

1 stop6h 00mAmerican Airlines

Mon 7/145:39 pmIAD - LGA

1 stop6h 06mAmerican Airlines

Deal found 6/11

$257

Wed 7/96:59 amLGA - IAD

2 stops28h 09mMultiple Airlines

Sun 7/1311:58 amIAD - LGA

2 stops31h 02mMultiple Airlines

Deal found 6/12

$279

Best flights from LaGuardia to Dulles Intl
Discover carefully curated flight deals from LaGuardia to Dulles Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 12, 2025.

Thu 7/102:59 pmLGA - IAD

Nonstop1h 27mUnited Airlines

Fri 7/1110:15 pmIAD - LGA

Nonstop1h 24mUnited Airlines

Deal found 6/10

$129

Wed 9/36:30 amLGA - IAD

1 stop8h 26mFrontier

Sat 9/67:00 amIAD - LGA

1 stop16h 32mFrontier

Deal found 6/10

$228

Wed 7/911:09 amLGA - IAD

1 stop6h 00mAmerican Airlines

Mon 7/145:39 pmIAD - LGA

1 stop6h 06mAmerican Airlines

Deal found 6/11

$257

Wed 7/96:59 amLGA - IAD

2 stops28h 09mMultiple Airlines

Sun 7/1311:58 amIAD - LGA

2 stops31h 02mMultiple Airlines

Deal found 6/12

$279

Last-minute flights from LaGuardia to Dulles Intl
Discover last-minute flight deals from LaGuardia to Dulles Intl. Data last updated June 12, 2025 and is based on user searches.

Thu 6/126:30 amLGA - IAD

1 stop9h 06mFrontier

Sat 6/144:16 pmIAD - LGA

1 stop7h 10mFrontier

Deal found 6/11

$228

Wed 6/1810:00 pmLGA - IAD

1 stop12h 09mFrontier

Mon 6/2311:04 amIAD - LGA

1 stop9h 55mFrontier

Deal found 6/10

$270

Wed 6/1810:57 amLGA - IAD

1 stop6h 14mAmerican Airlines

Thu 6/195:41 pmIAD - LGA

1 stop6h 04mAmerican Airlines

Deal found 6/11

$351

Fri 6/2011:55 amLGA - IAD

2 stops32h 57mMultiple Airlines

Sun 6/2211:12 amIAD - LGA

2 stops31h 48mMultiple Airlines

Deal found 6/11

$468

Sun 6/226:00 amLGA - IAD

Nonstop1h 27mUnited Airlines

Fri 7/48:25 amIAD - LGA

Nonstop1h 23mUnited Airlines

Deal found 6/9

$290

Wed 7/911:09 amLGA - IAD

1 stop6h 00mAmerican Airlines

Mon 7/145:39 pmIAD - LGA

1 stop6h 06mAmerican Airlines

Deal found 6/11

$257

Wed 7/96:59 amLGA - IAD

2 stops28h 09mMultiple Airlines

Sun 7/1311:58 amIAD - LGA

2 stops31h 02mMultiple Airlines

Deal found 6/12

$279

Thu 7/106:00 amLGA - IAD

Nonstop1h 27mUnited Airlines

Sat 7/125:11 pmIAD - LGA

Nonstop1h 33mUnited Airlines

Deal found 6/11

$129

One-way flights from LaGuardia to Dulles Intl
Search for one-way flight options from LaGuardia to Dulles Intl. Find affordable one-way fares based on user searches. Data last updated June 12, 2025.

Fri 8/16:00 amLGA - IAD

Nonstop1h 27mUnited Airlines

Deal found 6/11

$65

Mon 6/166:30 amLGA - IAD

1 stop8h 59mFrontier

Deal found 6/12

$125

Tue 9/99:00 amLGA - IAD

1 stop4h 51mAmerican Airlines

Deal found 6/10

$127

Sat 8/2312:42 pmLGA - IAD

2 stops22h 02mMultiple Airlines

Deal found 6/11

$142

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

New YorkWashington, D.C.

LGA - IAD

LGAIAD

New York LaGuardia

Thu 7/10

6:00 am-7:27 am

Nonstop1h 27m

Washington, D.C. Dulles Intl

Sat 7/12

5:11 pm-6:44 pm

Nonstop1h 33m

$129

New YorkWashington, D.C.

LGA - IAD

LGAIAD

New York LaGuardia

Wed 9/3

6:30 am-2:56 pm

1 stop8h 26m

Washington, D.C. Dulles Intl

Sat 9/6

7:00 am-11:32 pm

1 stop16h 32m

$228

New YorkWashington, D.C.

LGA - IAD

LGAIAD

New York LaGuardia

Wed 7/9

11:09 am-5:09 pm

1 stop6h 00m

Washington, D.C. Dulles Intl

Mon 7/14

5:39 pm-11:45 pm

1 stop6h 06m

$257

New YorkWashington, D.C.

LGA - IAD

LGAIAD

New York LaGuardia

Wed 7/9

6:59 am-11:08 am

2 stops28h 09m

Washington, D.C. Dulles Intl

Sun 7/13

11:58 am-7:00 pm

2 stops31h 02m

$279

New YorkWashington, D.C.

LGA - IAD

LGAIAD

New York LaGuardia

Sat 7/5

6:00 am-7:27 am

Nonstop1h 27m

$65

New YorkWashington, D.C.

LGA - IAD

LGAIAD

New York LaGuardia

Tue 9/9

9:00 am-1:51 pm

1 stop4h 51m

$127

New YorkWashington, D.C.

LGA - IAD

LGAIAD

New York LaGuardia

Tue 7/1

4:35 pm-11:20 am

3 stops18h 45m

$133

New YorkWashington, D.C.

LGA - IAD

LGAIAD

New York LaGuardia

Sat 7/5

6:30 am-3:16 pm

1 stop8h 46m

$141

New YorkWashington, D.C.

LGA - IAD

LGAIAD

New York LaGuardia

Fri 6/27

6:30 am-10:11 pm

2 stops15h 41m

$368

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/9

The best insider tips for New York LaGuardia Airport to Washington, D.C. Dulles Intl Airport flights

Cheapflights partnered with top experts to bring you the best recommendations for your New York LaGuardia Airport to Washington, D.C. Dulles Intl Airport trip

Airports

LGA

For a smooth departure from LGA, check your boarding pass to ensure you're at the correct terminal and allow time for terminal transfers if needed.

IAD

Upon arrival at IAD, the Silver Line Metro offers a cost-effective way to reach downtown Washington, D.C. in under 40 minutes.

Our travel experts

Brandon Schultz

Expert on LGA

Ramsey Qubein

Expert on IAD

Best time to book a flight from LaGuardia to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from LaGuardia 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.

Cheapflights Insights

Everything you need to know about your flight from New York LaGuardia Airport to Washington, D.C. Dulles Intl Airport

What is the cheapest month to book a flight from New York LaGuardia Airport to Washington, D.C. Dulles Intl Airport?

Currently, August is the cheapest month in which you can book a flight from New York LaGuardia Airport to Washington, D.C. Dulles Intl Airport (average of $309). Flying from New York LaGuardia Airport to Washington, D.C. Dulles Intl Airport in July is currently the most expensive (average of $349). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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

It’s typically best to fly out from New York LaGuardia Airport to Washington, D.C. Dulles Intl Airport in the morning. Doing so could potentially save you 52% on the flight price compared to flying in the afternoon, which is usually more expensive.

What is the cheapest day to fly from New York LaGuardia Airport to Washington, D.C. Dulles Intl Airport?

Travelers seeking maximum savings on their New York LaGuardia Airport to Washington, D.C. Dulles Intl Airport flight should consider departing on Saturday mornings when fares are most often at their lowest. Thursday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from New York LaGuardia Airport to Washington, D.C. Dulles Intl Airport

The most flights from LGA to IAD are scheduled on a Monday (7 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (3 on average).

Rainfall in Dulles Intl by month

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.

Temperature in Dulles Intl by month

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).

Reviews of airlines servicing Dulles Intl

Get a feel of what it's like to fly with United Airlines, American Airlines and Frontier from New York to Washington, D.C. by reading reviews from past customers. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

United Airlines

7.4

Good

8,790 reviews

Reviews

1 / 20

2.0

Mediocre

Anonymous,Oct 2024

EWR - DEN

Terribly delayed flight, missed ongoing flight, hotel very downmarket Food voucher not accepted in hotel

United Airlines

7.4

Good

8,790 reviews

United Airlines

7.4

Good

8,790 reviews

Reviews

1 / 20

2.0

Mediocre

Anonymous,Oct 2024

EWR - DEN

Terribly delayed flight, missed ongoing flight, hotel very downmarket Food voucher not accepted in hotel

American Airlines

7.2

Good

10,000 reviews

United Airlines

7.4

Good

8,790 reviews

Reviews

1 / 20

2.0

Mediocre

Anonymous,Oct 2024

EWR - DEN

Terribly delayed flight, missed ongoing flight, hotel very downmarket Food voucher not accepted in hotel

Frontier

5.9

Fair

3,295 reviews

United Airlines

7.4

Good

8,790 reviews

Reviews

1 / 20

2.0

Mediocre

Anonymous,Oct 2024

EWR - DEN

Terribly delayed flight, missed ongoing flight, hotel very downmarket Food voucher not accepted in hotel

Related info for your journey

What are the cheapest airlines flying from New York LaGuardia Airport to Washington, D.C. Dulles Intl Airport round-trip?
United Airlines, at $129, was found to be the cheapest airline from New York LaGuardia Airport to Washington, D.C. Dulles Intl Airport.Alternate airlines to your destination round-trip include Frontier and American Airlines. United Airlines is currently priced 55% below the average price you’ll pay for this route.
What are the cheapest airlines to fly from New York LaGuardia Airport to Washington, D.C. Dulles Intl Airport one-way?
$65 is the cheapest one-way deal found within the past few days, from United Airlines. You may also be able to find cheap deals on Frontier and American Airlines, with prices starting from $125 and $127, respectively.
What are the most reliable airlines from New York LaGuardia Airport to Washington, D.C. Dulles Intl Airport?
No one likes to see their flight delayed. When booking a flight from New York LaGuardia Airport to Washington, D.C. Dulles Intl Airport consider choosing ANA (89%), Avianca (87%) or Republic Airways (83%) as they are the most reliable in getting you off to your destination on time.
What are the cheapest flights from New York LaGuardia Airport to Washington, D.C. Dulles Intl Airport?
The cheapest flight price from New York LaGuardia Airport to Washington, D.C. Dulles Intl Airport is $94. On average you can expect to pay $770. The most popular route, (New York LaGuardia - Washington, D.C. Dulles Intl), can usually be booked for $129.
Can I find deals for flights from LaGuardia to Dulles Intl that include hotel bookings?
Yes. In addition to deals on LaGuardia to Dulles Intl flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from LaGuardia to Dulles Intl?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from LaGuardia to Dulles Intl.
Can I find deals for business class flights from LaGuardia to Dulles Intl?
Yes. Cheapflights offers flight deals from LaGuardia 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.
What is the cheapest month to book a flight from New York LaGuardia Airport to Washington, D.C. Dulles Intl Airport?
Currently, August is the cheapest month in which you can book a flight from New York LaGuardia Airport to Washington, D.C. Dulles Intl Airport (average of $309). Flying from New York LaGuardia Airport to Washington, D.C. Dulles Intl Airport in July is currently the most expensive (average of $349). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Arlington

Alexandria

Woodbridge

Tysons

Silver Spring

Linthicum Heights

Fredericksburg

Gaithersburg

Fairfax

Falls Church

Easton

Herndon

Towson

Sterling

Bowie

Rockville

Reston

National Harbor

Springfield

Manassas

Browse thousands of different options on Cheapflights for your next trip

Top airline flying from LaGuardia to Dulles Intl

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	Cheapest$147	Average$295	FlexibilityNo cancel fee	On-time69%

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$65+ Cheap flights from LaGuardia, NY (LGA) to Dulles Intl (IAD)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/5. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from LaGuardia to Dulles Intl with Cheapflights

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2. Select your favorite providers

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Cheap flight deals from LaGuardia to Dulles Intl

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Good one-way deal

Find flight deals from LaGuardia to Dulles Intl

Cheapest flights from LaGuardia to Dulles IntlExplore the most affordable flight options available from LaGuardia to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.

Explore the most affordable flight options available from LaGuardia to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.

Cheapflights Fare Finder

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

The best insider tips for New York LaGuardia Airport to Washington, D.C. Dulles Intl Airport flights

Cheapflights partnered with top experts to bring you the best recommendations for your New York LaGuardia Airport to Washington, D.C. Dulles Intl Airport trip

Airports

LGA

IAD

Our travel experts

Best time to book a flight from LaGuardia to Dulles Intl

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

Cheapflights Insights

Everything you need to know about your flight from New York LaGuardia Airport to Washington, D.C. Dulles Intl Airport

What is the cheapest month to book a flight from New York LaGuardia Airport to Washington, D.C. Dulles Intl Airport?

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

Find hourly flight availability from LaGuardia to Dulles Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 12, 2025.

What is the cheapest day to fly from New York LaGuardia Airport to Washington, D.C. Dulles Intl Airport?

Use this chart to determine the cheapest time to fly round-trip from LaGuardia to Dulles Intl. Price data was last updated on June 8, 2025.

Weekly flight availability from New York LaGuardia Airport to Washington, D.C. Dulles Intl Airport

Explore weekly flight availability from LaGuardia to Dulles Intl. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated June 12, 2025.

Rainfall in Dulles Intl by month

Plan your trip to Dulles Intl by taking into account the average rainfall totals by month.

Temperature in Dulles Intl by month

Plan your trip to Dulles Intl by taking into account the average temperature totals by month.

Reviews of airlines servicing Dulles Intl

Get a feel of what it's like to fly with United Airlines, American Airlines and Frontier from New York to Washington, D.C. by reading reviews from past customers. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from LaGuardia 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 are the cheapest airlines flying from New York LaGuardia Airport to Washington, D.C. Dulles Intl Airport round-trip?

What are the cheapest airlines to fly from New York LaGuardia Airport to Washington, D.C. Dulles Intl Airport one-way?

What are the most reliable airlines from New York LaGuardia Airport to Washington, D.C. Dulles Intl Airport?

What are the cheapest flights from New York LaGuardia Airport to Washington, D.C. Dulles Intl Airport?

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

How can I find direct flights from LaGuardia to Dulles Intl?

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

What is the cheapest month to book a flight from New York LaGuardia Airport to Washington, D.C. Dulles Intl Airport?

Traveling to a place near New York LaGuardia Airport?

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Alternative routes for LaGuardia to Dulles Intl

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

Top airline flying from LaGuardia to Dulles Intl

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Cheapest flights from LaGuardia to Dulles Intl
Explore the most affordable flight options available from LaGuardia to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.