$49 Cheap Flights from Lancaster (LNS) to Washington (IAD)

View $49 flight on Fri, Oct 17, 2025Opens in a new window

Popular airlines from Lancaster, PA (LNS) to Washington Dulles Intl. Airport (IAD)

  • Plan, book, fly with confidence

  • trending down icon

    Be in the know

    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon

    Book smarter

    Save up to 30% on select hotels after you book a flight*
  • one key icon

    Earn twice

    Earn your airline miles on top of our OneKeyCash
    Learn about One Key

Cheap Flights from Lancaster to Washington (LNS-IAD)

Prices were available within the past 7 days and start at $49 for one-way flights and $98 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Southern Airways Express
Mon, Mar 2 - Thu, Mar 5
LNS
Lancaster
IAD
Washington
$98 Roundtrip, found 2 hours ago
$98
Roundtrip
found 2 hours ago
Select Southern Airways Express flight, departing Mon, Mar 2 from Lancaster to Washington, returning Thu, Mar 5, priced at $98 found 2 hours ago
Southern Airways Express
Fri, Sep 26 - Sat, Oct 4
LNS
Lancaster
IAD
Washington
$103 Roundtrip, found 3 days ago
$103
Roundtrip
found 3 days ago
Select Southern Airways Express flight, departing Fri, Sep 26 from Lancaster to Washington, returning Sat, Oct 4, priced at $103 found 3 days ago
Southern Airways Express
Tue, Sep 30 - Tue, Oct 7
LNS
Lancaster
IAD
Washington
$108 Roundtrip, found 1 hour ago
$108
Roundtrip
found 1 hour ago
Select Southern Airways Express flight, departing Tue, Sep 30 from Lancaster to Washington, returning Tue, Oct 7, priced at $108 found 1 hour ago
Southern Airways Express
Mon, Sep 29 - Wed, Oct 8
LNS
Lancaster
IAD
Washington
$113 Roundtrip, found 1 hour ago
$113
Roundtrip
found 1 hour ago
Select Southern Airways Express flight, departing Mon, Sep 29 from Lancaster to Washington, returning Wed, Oct 8, priced at $113 found 1 hour ago
Southern Airways Express
Tue, Sep 30 - Tue, Oct 7
LNS
Lancaster
IAD
Washington
$118 Roundtrip, found 1 hour ago
$118
Roundtrip
found 1 hour ago
Select Southern Airways Express flight, departing Tue, Sep 30 from Lancaster to Washington, returning Tue, Oct 7, priced at $118 found 1 hour ago
Southern Airways Express
Mon, Sep 29 - Sat, Oct 4
LNS
Lancaster
IAD
Washington
$123 Roundtrip, found 1 hour ago
$123
Roundtrip
found 1 hour ago
Select Southern Airways Express flight, departing Mon, Sep 29 from Lancaster to Washington, returning Sat, Oct 4, priced at $123 found 1 hour ago
Southern Airways Express
Sat, Sep 27 - Wed, Oct 8
LNS
Lancaster
IAD
Washington
$128 Roundtrip, found 1 hour ago
$128
Roundtrip
found 1 hour ago
Select Southern Airways Express flight, departing Sat, Sep 27 from Lancaster to Washington, returning Wed, Oct 8, priced at $128 found 1 hour ago
Southern Airways Express
Thu, Sep 25 - Fri, Sep 26
LNS
Lancaster
IAD
Washington
$133 Roundtrip, found 2 days ago
$133
Roundtrip
found 2 days ago
Select Southern Airways Express flight, departing Thu, Sep 25 from Lancaster to Washington, returning Fri, Sep 26, priced at $133 found 2 days ago
Southern Airways Express
Sat, Oct 11 - Sat, Oct 18
LNS
Lancaster
IAD
Washington
$138 Roundtrip, found 1 day ago
$138
Roundtrip
found 1 day ago
Select Southern Airways Express flight, departing Sat, Oct 11 from Lancaster to Washington, returning Sat, Oct 18, priced at $138 found 1 day ago
Southern Airways Express
Wed, Sep 24 - Thu, Oct 9
LNS
Lancaster
IAD
Washington
$148 Roundtrip, found 1 day ago
$148
Roundtrip
found 1 day ago
Select Southern Airways Express flight, departing Wed, Sep 24 from Lancaster to Washington, returning Thu, Oct 9, priced at $148 found 1 day ago

Frequently asked questions

How much does a flight from Lancaster Airport (LNS) to Washington Dulles Intl. Airport (IAD) cost?
Get a cheap one-way flight from $49 or cheap return flight from $98 from Lancaster Airport (LNS) to Washington Dulles Intl. Airport (IAD) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from Lancaster Airport (LNS) to Washington Dulles Intl. Airport (IAD)?
March is the least expensive month to fly from LNS to IAD. Traveling during an off-peak travel window is often the key to finding a great deal.
Which airlines fly direct from Lancaster Airport (LNS) to Washington Dulles Intl. Airport (IAD)?
You can fly nonstop from Lancaster Airport (LNS) to Washington Dulles Intl. Airport (IAD) on a Southern Airways Express flight.
What is the cheapest airline that flies from Lancaster Airport (LNS) to Washington Dulles Intl. Airport (IAD)?
Expedia's filter tool lets you easily compare travel time, airlines and fares all in one place. Tailor the search to your trip, then sort by "Price (lowest to highest)" to see which carrier offers the cheapest LNS to IAD flight.
How many flights per day from Lancaster Airport (LNS) to Washington Dulles Intl. Airport (IAD)?
When departing from Lancaster Airport (LNS), you can take your pick from an average of 2 daily direct flights to Washington Dulles Intl. Airport (IAD).
What are the most popular departure times for flights from Lancaster Airport (LNS) to Washington Dulles Intl. Airport (IAD)?
More passengers fly between LNS and IAD at 6 AM than at any other time of day. Rather skip the crowds? Travel outside of rush hours and it's possible you'll save on your fare as well.
What day of the week has the most flights from LNS to IAD?
If you depart on a Friday, you'll get the biggest range of options for flights from Lancaster Airport (LNS) to Washington Dulles Intl. Airport (IAD).
What is the earliest flight from Lancaster Airport (LNS) to Washington Dulles Intl. Airport (IAD)?
Hop on the earliest flight at around 6:10AM UTC-5, departing from Lancaster Airport (LNS). You'll be flying for approximately 1h 10m, arriving at Washington Dulles Intl. Airport (IAD) at approximately 7:20AM UTC-5.
How long does it take to fly from Lancaster Airport (LNS) to Washington Dulles Intl. Airport (IAD)?
The average flight duration from LNS to IAD is 1 hour and 10 minutes, covering a distance of 100 mi.
What is the best time to fly from Lancaster Airport (LNS) to Washington Dulles Intl. Airport (IAD)?
To arrive at Washington Dulles Intl. Airport (IAD) on time, book a flight that takes off from Lancaster Airport (LNS) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this time.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports do you fly into for Washington from Lancaster Airport (LNS)?
Explore your flight options from Lancaster Airport (LNS) to Washington Dulles Intl. Airport (IAD). This is the only airport in Washington you can arrive at if you're taking a direct flight.
Is it cheaper to buy a plane ticket from Lancaster Airport (LNS) to Washington Dulles Intl. Airport (IAD) last-minute?
Booking your ticket from LNS to IAD just before your journey is typically more expensive. But if you're flexible with your departure dates and times, you could grab a cheap last-minute fare.
Is it cheaper to book a LNS to IAD flight and hotel package?
Booking a LNS to IAD flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels in one place. Choose from our extensive range of accommodations and then add car rentals, activities and flights to your booking. Bundle it all together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Lancaster Airport (LNS) to Washington Dulles Intl. Airport (IAD)?
It's usually possible to cancel or reschedule your LNS to IAD flight. However, for bookings made more than 24 hours ago, additional charges may apply. Check your airline's policies in your itinerary to see what changes are allowed and if any costs are involved. You'll also find more information on our Customer Service portal.

Travel information

Travel information

Origin airport
Lancaster
Destination airport
Washington Dulles Intl.
Airlines serving
Southern Airways Express
Roundtrip price
$98
Distance
101 mi
Average flight time
1 hour 8 mins

Book with confidence

Book with confidence

Lancaster to Washington Flights

The cheapest times to fly from Lancaster to Washington

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Lancaster to Washington are during the month of March. You can find some of the cheapest flights from Lancaster to Washington with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Lancaster to Washington

Sunday is one of the best days to book for cheap flights from Lancaster to Washington: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Lancaster to Washington

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Lancaster to Washington in 2025. You can also book with separate airlines for your outbound and return journeys, from $49 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Lancaster to Washington flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Lancaster to Washington airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Lancaster to Washington Flights

Explore a world of travel with Expedia

Explore a world of travel with Expedia

*Available to One Key members.