$242 Cheap Delta flights New York (LGA) to Washington (IAD)

Scoring cheap one-way Delta Air Lines flights from LGA to IAD from $242 on Expedia couldn’t be easier — just filter by “Price (lowest to highest).” Or check out our affordable return fares from $325 for your next exciting adventure.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.

January is one of the cheapest months to fly to Washington with Delta Air Lines. You could also find great deals on one-way and round-trip fares in February.

To find cheap Delta Air Lines fares from LaGuardia Airport (LGA) to Washington Dulles Intl. Airport (IAD), start searching one to three months before your intended departure. Reserving domestic flights 34 to 86 days in advance could save you 25% compared to booking just 6 to 12 days ahead. The day you book can also impact how much you pay. Sunday is generally the cheapest, while Monday is often the most expensive for domestic flights. You can save 6% on average by choosing to book on a Sunday.**Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC’s global airline sales database.

Fill in your dates, press search and check the “Nonstop” filter on Expedia to find any direct flights from LGA to IAD with Delta Air Lines or another airline.

Filter your results by “Early Morning” and “Morning” to browse the earliest departures from LGA to IAD. Leaving early means flight cancellations are less likely.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG’s global flight data platform.

Delta Air Lines flights from LaGuardia Airport (LGA) to Washington land at Washington Dulles Intl. Airport (IAD). This is the main entry point here.

Delta Air Lines makes traveling from LGA to IAD more enjoyable with a rewarding loyalty program and an excellent in-flight experience. You also have the chance to earn points with Delta SkyMiles. Remember to join Expedia’s free One Key™ rewards program to earn OneKeyCash™*, which can be redeemed on future trips.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.

Changes are usually free within 24 hours of booking, but your airline may charge a fee after that. For further details about altering your reservation, check out your “Trips,” select your flight and click on “Manage Booking.” If you’d like the flexibility to make changes without being charged, tick the “Changes included” and “No cancel fee” filters when planning your next escape.