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Dulles Intl

$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 7/22. Fares are subject to change and may not be available on all flights or dates of travel.
LGA — IAD
Jun 21 — Jun 281
Sat 6/21
Sat 6/28
1 adult, Economy
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Cheap flight deals from LaGuardia to Dulles Intl

Discover tips and strategies to find the most affordable flight options for your journey from LaGuardia (LGA) to Dulles Intl (IAD). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated June 16, 2025.

Round-trip from

$129
(United Airlines)

One-way from

$65
(United Airlines)

Popular in

November

Cheapest in

April

Average price

$298

Good round-trip deal

$339 or less

Good one-way deal

$206 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 ($41 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 16, 2025.

This United Airlines deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/1610:29 amLGA - IAD
Nonstop1h 24mUnited Airlines
Wed 7/1610:15 pmIAD - LGA
Nonstop1h 24mUnited Airlines
Deal found 6/16$129
This Priceline deal was found by Cheapflights users on 6/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/206:30 amLGA - IAD
1 stop8h 59mFrontier
Sat 6/214:16 pmIAD - LGA
1 stop7h 10mFrontier
Deal found 6/14$160
This American Airlines deal was found by Cheapflights users on 6/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/3011:55 amLGA - IAD
1 stop5h 14mAmerican Airlines
Wed 8/67:44 amIAD - LGA
1 stop6h 15mAmerican Airlines
Deal found 6/15$260
This Mytrip deal was found by Cheapflights users on 6/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/134:57 pmLGA - IAD
2 stops17h 17mMultiple Airlines
Sat 8/169:15 pmIAD - LGA
2 stops18h 37mMultiple Airlines
Deal found 6/15$293

Cheapflights Fare Finder

Customize your flight search to find flights from LaGuardia to Dulles Intl that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated June 16, 2025.
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

LaGuardia

Fly to

Dulles Intl

Route

Depart

Return

Price

New YorkWashington, D.C.

LGA - IAD

LGAIAD

New York LaGuardia

Wed 7/16

6:00 am-7:27 am

Nonstop1h 27m

Washington, D.C. Dulles Intl

Thu 7/17

10:15 pm-11:39 pm

Nonstop1h 24m

$129

New YorkWashington, D.C.

LGA - IAD

LGAIAD

New York LaGuardia

Fri 6/20

6:30 am-3:29 pm

1 stop8h 59m

Washington, D.C. Dulles Intl

Sat 6/21

4:16 pm-11:26 pm

1 stop7h 10m

$160

New YorkWashington, D.C.

LGA - IAD

LGAIAD

New York LaGuardia

Wed 7/30

11:55 am-5:09 pm

1 stop5h 14m

Washington, D.C. Dulles Intl

Wed 8/6

7:44 am-1:59 pm

1 stop6h 15m

$260

New YorkWashington, D.C.

LGA - IAD

LGAIAD

New York LaGuardia

Wed 8/13

4:57 pm-10:14 am

2 stops17h 17m

Washington, D.C. Dulles Intl

Sat 8/16

9:15 pm-3:52 pm

2 stops18h 37m

$293

New YorkWashington, D.C.

LGA - IAD

LGAIAD

New York LaGuardia

Tue 7/22

10:29 am-11:53 am

Nonstop1h 24m

$65

New YorkWashington, D.C.

LGA - IAD

LGAIAD

New York LaGuardia

Thu 6/19

6:30 am-3:36 pm

1 stop9h 06m

$86

New YorkWashington, D.C.

LGA - IAD

LGAIAD

New York LaGuardia

Tue 7/15

8:15 am-12:36 pm

1 stop4h 21m

$128

New YorkWashington, D.C.

LGA - IAD

LGAIAD

New York LaGuardia

Fri 7/4

7:55 pm-8:53 pm

2 stops24h 58m

$138

New YorkWashington, D.C.

LGA - IAD

LGAIAD

New York LaGuardia

Fri 7/4

5:04 pm-10:55 pm

1 stop5h 51m

$188

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/16

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

Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
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.

Read more about LGAby Brandon Schultz
IAD

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

Read more about IADby Ramsey Qubein
Our travel experts
Brandon Schultz

Brandon Schultz

Expert on LGA

Brandon Schultz

Brandon Schultz

Brandon Schultz is an award-winning food and travel writer based in New York City. His work has appeared in Forbes, AAA, Thrillist, Travel + Leisure, and The Daily Meal, among many others, and he is the author of 6 books, including 3 cookbooks.

Read more
Ramsey Qubein

Ramsey Qubein

Expert on IAD

Ramsey Qubein

Ramsey Qubein

An avid traveler and aviation expert who has visited 173 countries, all 50 states and seven continents, Ramsey Qubein flies nearly 400,000 miles a year. As a North Carolina-based freelance journalist for publications including Conde Nast Traveler, Forbes, USA Today and Bloomberg among others, he explores the latest trends in aviation, hospitality, cruises and business.

Read more

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 $347). 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?

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 16, 2025.

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?

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.

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

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 16, 2025.

The most flights from LGA to IAD are scheduled on a Friday (8 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (7 on average).

Rainfall in Dulles Intl by month

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

Plan your trip to Dulles Intl by taking into account the average temperature totals 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 insights into the airlines that provide service to Dulles Intl. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Dulles Intl. Reviews last updated June 16, 2025.
Get a feel of what it's like to fly with Delta, United Airlines and American Airlines 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.
Delta
8.0
Very good
7,963 reviews

Crew

8.5

Entertainment

7.9

Comfort

7.9

Boarding

8.2

Food

7.3

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kymberlee,Oct 2024

JFK - ATL

Overall it was good on the flight. Before the flight with checking the bag at JFK was a nightmare. It took way too long and the Delta concierge was very rude to everyone. But other than that it was fine.
Delta
8.0
Very good
7,963 reviews
Delta
8.0
Very good
7,963 reviews

Crew

8.5

Entertainment

7.9

Comfort

7.9

Boarding

8.2

Food

7.3

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kymberlee,Oct 2024

JFK - ATL

Overall it was good on the flight. Before the flight with checking the bag at JFK was a nightmare. It took way too long and the Delta concierge was very rude to everyone. But other than that it was fine.
United Airlines
7.4
Good
8,801 reviews
Delta
8.0
Very good
7,963 reviews

Crew

8.5

Entertainment

7.9

Comfort

7.9

Boarding

8.2

Food

7.3

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kymberlee,Oct 2024

JFK - ATL

Overall it was good on the flight. Before the flight with checking the bag at JFK was a nightmare. It took way too long and the Delta concierge was very rude to everyone. But other than that it was fine.
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,963 reviews

Crew

8.5

Entertainment

7.9

Comfort

7.9

Boarding

8.2

Food

7.3

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kymberlee,Oct 2024

JFK - ATL

Overall it was good on the flight. Before the flight with checking the bag at JFK was a nightmare. It took way too long and the Delta concierge was very rude to everyone. But other than that it was fine.
Frontier
5.9
Fair
3,296 reviews
Delta
8.0
Very good
7,963 reviews

Crew

8.5

Entertainment

7.9

Comfort

7.9

Boarding

8.2

Food

7.3

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kymberlee,Oct 2024

JFK - ATL

Overall it was good on the flight. Before the flight with checking the bag at JFK was a nightmare. It took way too long and the Delta concierge was very rude to everyone. But other than that it was fine.

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?

    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 $86 and $128, 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 (85%), Avianca (84%) or Republic Airways (79%) 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 $835. 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 $347). 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

Traveling to a place near New York LaGuardia Airport?

Book flights to New York LaGuardia Airport if you plan to visit one of these locations
Arlington
Alexandria
Woodbridge
Tysons
Silver Spring
Linthicum Heights
Fredericksburg
Gaithersburg
Fairfax
Falls Church
Easton
Herndon
Towson
Sterling
Bowie
Rockville
Reston
National Harbor
Springfield
Manassas

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Top airline flying from LaGuardia to Dulles Intl

Discover the top airline that operate flights from LaGuardia to Dulles Intl. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated June 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$147Average$299FlexibilityNo cancel feeOn-time69%

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