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Dulles Intl

$55+ 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 11/18. Fares are subject to change and may not be available on all flights or dates of travel.
LGA — IAD
Dec 4 — Dec 111
Thu 12/4
Thu 12/11
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 November 4, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$110
(Frontier)

One-way from

$55
(Priceline)

Popular in

July

Cheapest in

April

Average price

$338

Good round-trip deal

$269 or less

Good one-way deal

$163 or less
Provider with most accurate pricing for New York LaGuardia-Washington, D.C. Dulles Intl flight deals.
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Provider most trusted by Cheapflights users for New York LaGuardia-Washington, D.C. Dulles Intl flights.
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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. 7% potential increase in price ($24 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).
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Average for round-trip flights in November 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 November 4, 2025.

This Frontier deal was found by Cheapflights users on 11/3. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/176:21 amLGA - IAD
1 stop10h 37mFrontier
Wed 11/198:40 amIAD - LGA
1 stop10h 49mFrontier
Deal found 11/3$110
This United Airlines deal was found by Cheapflights users on 11/4. 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 12/36:00 amLGA - IAD
Nonstop1h 27mUnited Airlines
Wed 12/310:23 pmIAD - LGA
Nonstop1h 21mUnited Airlines
Deal found 11/4$117
This Mytrip deal was found by Cheapflights users on 11/2. 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.
Thu 12/116:20 amLGA - IAD
1 stop11h 58mFrontier
Mon 12/154:00 pmIAD - LGA
1 stop19h 29mFrontier
Deal found 11/2$119
This United Airlines deal was found by Cheapflights users on 11/2. 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.
Fri 12/126:00 amLGA - IAD
Nonstop1h 27mUnited Airlines
Sun 12/1410:23 pmIAD - LGA
Nonstop1h 21mUnited Airlines
Deal found 11/2$125
This United Airlines deal was found by Cheapflights users on 11/4. 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 11/196:00 amLGA - IAD
Nonstop1h 27mUnited Airlines
Sun 11/235:10 pmIAD - LGA
Nonstop1h 34mUnited Airlines
Deal found 11/4$127
This United Airlines deal was found by Cheapflights users on 11/1. 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.
Sat 11/226:00 amLGA - IAD
Nonstop1h 27mUnited Airlines
Sat 11/2910:12 pmIAD - LGA
Nonstop1h 18mUnited Airlines
Deal found 11/1$129
This Frontier deal was found by Cheapflights users on 11/3. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/176:21 amLGA - IAD
1 stop10h 37mFrontier
Thu 11/206:55 amIAD - LGA
1 stop9h 01mFrontier
Deal found 11/3$130
This Frontier deal was found by Cheapflights users on 11/3. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1912:30 pmLGA - IAD
1 stop7h 50mFrontier
Sat 12/65:45 amIAD - LGA
1 stop5h 44mFrontier
Deal found 11/3$131
This United Airlines deal was found by Cheapflights users on 11/4. 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.
Mon 12/86:00 amLGA - IAD
Nonstop1h 27mUnited Airlines
Tue 12/910:23 pmIAD - LGA
Nonstop1h 21mUnited Airlines
Deal found 11/4$137
This United Airlines deal was found by Cheapflights users on 11/2. 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.
Thu 11/206:00 amLGA - IAD
Nonstop1h 27mUnited Airlines
Sun 11/238:19 amIAD - LGA
Nonstop1h 25mUnited Airlines
Deal found 11/2$138
This United Airlines deal was found by Cheapflights users on 11/4. 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.
Sat 11/226:00 amLGA - IAD
Nonstop1h 27mUnited Airlines
Sun 11/235:10 pmIAD - LGA
Nonstop1h 34mUnited Airlines
Deal found 11/4$147

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 November 4, 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 12/17

10:25 am-11:52 am

Nonstop1h 27m

Washington, D.C. Dulles Intl

Wed 12/17

10:23 pm-11:44 pm

Nonstop1h 21m

$117

New YorkWashington, D.C.

LGA - IAD

LGAIAD

New York LaGuardia

Thu 12/4

6:00 am-7:27 am

Nonstop1h 27m

Washington, D.C. Dulles Intl

Sat 12/6

12:40 pm-2:14 pm

Nonstop1h 34m

$117

New YorkWashington, D.C.

LGA - IAD

LGAIAD

New York LaGuardia

Fri 12/12

6:00 am-7:27 am

Nonstop1h 27m

Washington, D.C. Dulles Intl

Sun 12/14

10:23 pm-11:44 pm

Nonstop1h 21m

$125

New YorkWashington, D.C.

LGA - IAD

LGAIAD

New York LaGuardia

Sun 1/18

6:00 am-7:30 am

Nonstop1h 30m

Washington, D.C. Dulles Intl

Sun 1/18

12:40 pm-2:14 pm

Nonstop1h 34m

$127

New YorkWashington, D.C.

LGA - IAD

LGAIAD

New York LaGuardia

Sat 11/22

6:00 am-7:27 am

Nonstop1h 27m

Washington, D.C. Dulles Intl

Sat 11/29

10:12 pm-11:30 pm

Nonstop1h 18m

$129

New YorkWashington, D.C.

LGA - IAD

LGAIAD

New York LaGuardia

Thu 11/20

6:00 am-7:27 am

Nonstop1h 27m

Washington, D.C. Dulles Intl

Sun 11/23

8:19 am-9:44 am

Nonstop1h 25m

$138

New YorkWashington, D.C.

LGA - IAD

LGAIAD

New York LaGuardia

Tue 11/25

10:25 am-11:52 am

Nonstop1h 27m

Washington, D.C. Dulles Intl

Sat 11/29

10:12 pm-11:30 pm

Nonstop1h 18m

$159

New YorkWashington, D.C.

LGA - IAD

LGAIAD

New York LaGuardia

Thu 11/13

6:00 am-7:27 am

Nonstop1h 27m

Washington, D.C. Dulles Intl

Sun 11/16

8:19 am-9:44 am

Nonstop1h 25m

$161

New YorkWashington, D.C.

LGA - IAD

LGAIAD

New York LaGuardia

Tue 11/25

10:25 am-11:52 am

Nonstop1h 27m

Washington, D.C. Dulles Intl

Fri 11/28

5:10 pm-6:44 pm

Nonstop1h 34m

$161

New YorkWashington, D.C.

LGA - IAD

LGAIAD

New York LaGuardia

Thu 12/4

6:00 am-7:27 am

Nonstop1h 27m

Washington, D.C. Dulles Intl

Thu 12/11

10:23 pm-11:44 pm

Nonstop1h 21m

$167

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/1

Showing 1-10 of 22 results
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Compare providers for flights from LaGuardia to Dulles Intl

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from LaGuardia to Dulles Intl in November.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on New York LaGuardia Airport-Washington, D.C. Dulles Intl Airport flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on New York LaGuardia Airport-Washington, D.C. Dulles Intl Airport flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from New York LaGuardia Airport-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 New York LaGuardia Airport-Washington, D.C. Dulles Intl Airport flights, Cheapflights users trust eDreams the most. eDreams 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 New York LaGuardia Airport-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 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, March 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 $91). Flying from New York LaGuardia Airport to Washington, D.C. Dulles Intl Airport in January is currently the most expensive (average of $213). 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 November 4, 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 November 2, 2025.

Travelers seeking maximum savings on their New York LaGuardia Airport to Washington, D.C. Dulles Intl Airport flight should consider departing on Friday evenings 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.

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

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 November 4, 2025.
See what other customers who have flown with United Airlines from New York LaGuardia Airport to Washington, D.C. Dulles Intl Airport have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,002 reviews

Boarding

7.7

Comfort

7.3

Food

6.6

Overall

7.4

Entertainment

7.1

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Tim,Sep 2025

LHR - IAD

The premium economy seats were very comfortable and the attention and service by the flight attendants was superb.
United Airlines
7.4
Good
9,002 reviews
United Airlines
7.4
Good
9,002 reviews

Boarding

7.7

Comfort

7.3

Food

6.6

Overall

7.4

Entertainment

7.1

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Tim,Sep 2025

LHR - IAD

The premium economy seats were very comfortable and the attention and service by the flight attendants was superb.

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.

  • How long is the flight from New York LaGuardia Airport to Washington, D.C. Dulles Intl Airport?

    Departing from New York LaGuardia Airport to Washington, D.C. Dulles Intl Airport will take you 1h 27m. There are 228 mi between New York LaGuardia Airport and Washington, D.C. Dulles Intl Airport. Generally, flights for this route are nonstop.

  • What is the cheapest airline to fly 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.. United Airlines is currently priced 53% below the average price you’ll pay for this route.

  • 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 (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 $102. On average you can expect to pay $616. The most popular route, (New York LaGuardia - Washington, D.C. Dulles Intl), can usually be booked for $117.

  • 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, March 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 $91). Flying from New York LaGuardia Airport to Washington, D.C. Dulles Intl Airport in January is currently the most expensive (average of $213). 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 Washington, D.C. Dulles Intl Airport?

Book flights to Washington, D.C. Dulles Intl Airport if you plan to visit one of these locations
Alexandria
Tysons
Woodbridge
Arlington
Owings Mills
Springfield
Hanover
Silver Spring
Fairfax
Fredericksburg
Falls Church
Linthicum Heights
Manassas
Laurel
Towson
National Harbor
Waldorf
Bowie
Largo
McLean

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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 November 4, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$129Average$289FlexibilityNo cancel feeOn-time69%

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