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Cheap flights from New York LaGuardia to Washington Dulles

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Compare New York LaGuardia to Washington Dulles flight deals

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Flight deals from New York LaGuardia to Washington Dulles

Looking for a cheap last-minute deal or the best round-trip flight from New York LaGuardia to Washington Dulles? Find the lowest prices on one-way and round-trip tickets right here.
Washington, D.C..C$131 per passenger.Departing Sat, Mar 29, returning Tue, Apr 1.Round-trip flight with United.Outbound direct flight with United departing from New York LaGuardia on Sat, Mar 29, arriving in Washington Dulles.Inbound direct flight with United departing from Washington Dulles on Tue, Apr 1, arriving in New York LaGuardia.Price includes taxes and charges.From C$131, select.
Washington, D.C..C$131 per passenger.Departing Wed, May 7, returning Wed, May 14.Round-trip flight with United.Outbound direct flight with United departing from New York LaGuardia on Wed, May 7, arriving in Washington Dulles.Inbound direct flight with United departing from Washington Dulles on Wed, May 14, arriving in New York LaGuardia.Price includes taxes and charges.From C$131, select.
Washington, D.C..C$131 per passenger.Departing Wed, Jun 4, returning Sat, Jun 7.Round-trip flight with United.Outbound direct flight with United departing from New York LaGuardia on Wed, Jun 4, arriving in Washington Dulles.Inbound direct flight with United departing from Washington Dulles on Sat, Jun 7, arriving in New York LaGuardia.Price includes taxes and charges.From C$131, select.
Washington, D.C..C$131 per passenger.Departing Tue, Jul 1, returning Tue, Jul 15.Round-trip flight with United.Outbound direct flight with United departing from New York LaGuardia on Tue, Jul 1, arriving in Washington Dulles.Inbound direct flight with United departing from Washington Dulles on Tue, Jul 15, arriving in New York LaGuardia.Price includes taxes and charges.From C$131, select.
Washington, D.C..C$131 per passenger.Departing Sat, May 31, returning Tue, Jun 3.Round-trip flight with United.Outbound direct flight with United departing from New York LaGuardia on Sat, May 31, arriving in Washington Dulles.Inbound direct flight with United departing from Washington Dulles on Tue, Jun 3, arriving in New York LaGuardia.Price includes taxes and charges.From C$131, select.
Washington, D.C..C$131 per passenger.Departing Wed, Apr 9, returning Wed, Apr 9.Round-trip flight with United.Outbound direct flight with United departing from New York LaGuardia on Wed, Apr 9, arriving in Washington Dulles.Inbound direct flight with United departing from Washington Dulles on Wed, Apr 9, arriving in New York LaGuardia.Price includes taxes and charges.From C$131, select.
Washington, D.C..C$131 per passenger.Departing Wed, Aug 13, returning Wed, Aug 13.Round-trip flight with United.Outbound direct flight with United departing from New York LaGuardia on Wed, Aug 13, arriving in Washington Dulles.Inbound direct flight with United departing from Washington Dulles on Wed, Aug 13, arriving in New York LaGuardia.Price includes taxes and charges.From C$131, select.
Washington, D.C..C$131 per passenger.Departing Sat, Mar 29, returning Sat, Mar 29.Round-trip flight with United.Outbound direct flight with United departing from New York LaGuardia on Sat, Mar 29, arriving in Washington Dulles.Inbound direct flight with United departing from Washington Dulles on Sat, Mar 29, arriving in New York LaGuardia.Price includes taxes and charges.From C$131, select.

Find the cheapest month to fly from New York LaGuardia to Washington Dulles

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like New York LaGuardia to Washington Dulles flights are currently cheapest in March.
Mar
from C$131
Apr
from C$131
May
from C$131
Jun
from C$131
Jul
from C$131
Aug
from C$131
Sep
from C$143
Oct
from C$131
Nov
from C$132
Dec
from C$216
Jan
from C$230
Feb
Find prices

Direct flights from New York LaGuardia to Washington Dulles

New York LaGuardia to Washington Dulles: Alternative routes

Compare routes from New York LaGuardia to Washington, D.C. below. You may find an airport to fly into that's cheaper, faster, or easier than Washington Dulles.

New York to Washington, D.C.: Flight information

The things to know before you go.
Cheapest flight foundC$131
Cheapest month to flyMay
Average flight time1 hr, 28 mins
Most popular airlineUnited
Average flights per week63

Finding cheap flights from New York LaGuardia to Washington Dulles: Frequently asked questions

The best price we found for a round-trip flight from New York LaGuardia to Washington Dulles is C$131. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
1 hour and 28 minutes is the average flight time from New York LaGuardia to Washington Dulles.
United, Mesa Airlines and Republic Airways fly direct from New York LaGuardia to Washington Dulles.
There are 63 flights per week flying from New York LaGuardia to Washington Dulles, as of March 2025.
The cheapest month to fly from New York LaGuardia to Washington Dulles is usually March 2025.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from New York LaGuardia Airport to Washington Dulles Airport on Wednesday, May 7, 2025.
Yes – the average flight time is 1 hour and 28 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Washington Dulles but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar, and it looks like the cheapest time to book a flight to Washington, D.C. is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, United offers the cheapest flight tickets to Washington Dulles.

Traveling from LaGuardia Airport (LGA) to Washington Dulles International Airport (IAD): what you need to know

  • Expect to be in the skies for 1 hour 28 minutes. That's the average time for a direct flight from LaGuardia Airport to Washington Dulles International Airport. New York and Washington DC have the same timezone — UTC-4.

  • Each week, there are 294 flights from LaGuardia Airport to Washington Dulles International Airport. To get going as soon as possible, go for the 06:00 United Airlines flight. If you're keen to make the most of your time before you fly, the last flight from LGA to IAD is 22:10 with United Airlines.

  • If you're flying during a peak month like July, get to the terminal even earlier. It's wise to arrive up to four hours before an international flight and two hours ahead of a domestic departure. Security lines will be longer during high seasons like Thanksgiving, Christmas and New Year.

  • United Airlines is your gateway to discovering Washington DC (and maybe even some other great corners of United States!). Choose from the direct flights from LaGuardia Airport to Washington Dulles International Airport offered by this carrier.

  • If you want to break up your flight from LaGuardia Airport to Washington Dulles International Airport, consider adding a stopover. Simply deselect 'Direct flights only' and find a destination that interests you. Popular stopovers on the LGA - IAD route are:

    • Philadelphia International Airport

    • Charlottesville Albemarle Airport

    • Richmond International Airport (Byrd Field)

  • No need to bring your passport or a visa to fly within United States. You will need a valid form of identification however, like a driver's license or an ID card. Put them on your packing list once you've got your cheap ticket from LGA to IAD.

How to find the cheapest flights from LaGuardia Airport (LGA) to Washington Dulles International Airport (IAD)

  • The lowest price we've seen for a one-way ticket from LaGuardia Airport to Washington Dulles International Airport is C$65. For a return flight on this route, the best price is C$131. Depending on the availability and when you book, these fares may change.

  • Book 9 months before you want to travel. After crunching the numbers on our calendar, this is how far you should book ahead to secure cheap flight tickets from LGA to IAD.

  • The cheapest month for flight tickets from LaGuardia Airport to Washington Dulles International Airport is May. Use the 'Whole month' tool to see the lowest airfares if you have a flexible travel schedule.

  • Sign into your online account or use the app to create a Price Alert. You'll get notified straight away if there's a cheaper deal on this route. It's simple to do, and it'll save you from checking for cheap flight tickets from LGA to IAD every day.

  • Play around with filters to find the best journey for you. To see the 'Cheapest,' 'Fastest' or 'Best' flights from LaGuardia Airport to Washington Dulles International Airport, use the 'Sort by' tool. You can also filter results by airline, arrival and departure times, and journey duration.

Handy information about LaGuardia Airport (LGA)

  • Traveling from central New York to LaGuardia Airport takes approximately 58 minutes on public transport. If you ride-share, drive or hail a cab, you'll cover the 18 kilometres in 27 minutes or so, depending on traffic conditions.

  • Got an early flight from LaGuardia Airport to Washington Dulles International Airport? Avoid rushing to the terminal (and sneak in some extra precious sleep) by picking one of these hotels near LGA:

Arriving at Washington Dulles International Airport (IAD)

Getting from Washington Dulles International Airport (IAD) to central Washington DC

  • Washington Dulles International Airport is approximately 56 kilometres from the center of Washington DC. With your own car rental or if you're catching a cab, the drive is around 51 minutes.

  • It takes roughly 3 hours and 26 minutes if you're traveling by public transport.

When to fly to Washington Dulles International Airport (IAD)

  • The quietest month for a flight from LaGuardia Airport to Washington Dulles International Airport is February, while July is the most popular. Choose the best time to go to Washington DC based on whether you prefer a bustling atmosphere or a more laid-back vibe.

  • When booking your flight from LaGuardia Airport to Washington Dulles International Airport, think about the kind of weather you like. July is the warmest month in Washington DC, with temperatures ranging from 19ºC to 33ºC.

  • Search for cheap flight tickets from LGA to IAD in January if you want to travel in cooler conditions. Temperatures are at their lowest then, ranging between -6ºC and 10ºC on average.

More about Washington DC

  • After locking in your flights from LGA to IAD, you'll want to find a hotel in Washington DC. Make one of these accommodation options your base for exploring this exciting city:

  • There are so many things to discover in this city it can be tricky to know where to begin. White House Historical Association, The White House and National Mall are major attractions which should be on every Washington DC itinerary.

  • There's more than one way to travel to Washington DC. Ronald Reagan National Airport (DCA) is another great choice. Be sure to check out the prices and departure times from this domestic airport.

Complete your Washington DC trip with hotels and a car rental

  • You've locked in your cheap ticket to Washington Dulles International Airport — next up is finding a great place to stay, and maybe even a set of wheels. We've compared prices across hundreds of companies to bring you the top hotels and car rental deals in Washington DC.

Plan the rest of your trip from New York to Washington, D.C.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.