$325+ Cheap flights from Lancaster, PA (LNS) to Dulles Intl (IAD)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/15. Fares are subject to change and may not be available on all flights or dates of travel.
LNS — IAD
Nov 12 — Nov 191
Round-trip
1 adult, Economy
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Find cheap flights from Lancaster to Dulles Intl with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Lancaster to Dulles Intl
Cheapest
Best
Last-minute
One-way
Cheapest flights from Lancaster to Dulles IntlExplore the most affordable flight options available from Lancaster to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 13, 2026.
Explore the most affordable flight options available from Lancaster to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 13, 2026.
This United Airlines deal was found by Cheapflights users on 10/11. 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 12/239:47 am -
1 stop11h 26m
Sun 12/2710:10 am -
1 stop9h 46m
Deal found 10/11![United Airlines logo]()
$785
This United Airlines deal was found by Cheapflights users on 10/9. 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.
Sun 10/256:05 am -
1 stop26h 44m
Thu 10/291:15 pm -
1 stop26h 50m
Deal found 10/9![United Airlines logo]()
$942
This United Airlines deal was found by Cheapflights users on 10/12. 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.
Tue 10/276:05 am -
1 stop18h 25m
Sat 10/313:37 pm -
1 stop25h 28m
Deal found 10/12![United Airlines logo]()
$992
This United Airlines deal was found by Cheapflights users on 10/10. 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.
Tue 10/209:06 am -
1 stop12h 05m
Fri 10/2310:18 pm -
1 stop26h 13m
Deal found 10/10![United Airlines logo]()
$1,022
Best flights from Lancaster to Dulles IntlDiscover carefully curated flight deals from Lancaster to Dulles Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 13, 2026.
Discover carefully curated flight deals from Lancaster to Dulles Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 13, 2026.
This United Airlines deal was found by Cheapflights users on 10/11. 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 12/239:47 am -
1 stop11h 26m
Sun 12/2710:10 am -
1 stop9h 46m
Deal found 10/11![United Airlines logo]()
$785
This United Airlines deal was found by Cheapflights users on 10/9. 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.
Sun 10/256:05 am -
1 stop26h 44m
Thu 10/291:15 pm -
1 stop26h 50m
Deal found 10/9![United Airlines logo]()
$942
This United Airlines deal was found by Cheapflights users on 10/10. 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 10/266:05 am -
1 stop7h 30m
Fri 10/3010:47 pm -
1 stop25h 39m
Deal found 10/10![United Airlines logo]()
$942
This United Airlines deal was found by Cheapflights users on 10/12. 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.
Tue 10/276:05 am -
1 stop18h 25m
Sat 10/313:37 pm -
1 stop25h 28m
Deal found 10/12![United Airlines logo]()
$992
This United Airlines deal was found by Cheapflights users on 10/13. 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 10/286:05 am -
1 stop7h 30m
Sun 11/110:15 am -
1 stop5h 50m
Deal found 10/13![United Airlines logo]()
$992
Last-minute flights from Lancaster to Dulles IntlDiscover last-minute flight deals from Lancaster to Dulles Intl. Data last updated October 13, 2026 and is based on user searches.
Discover last-minute flight deals from Lancaster to Dulles Intl. Data last updated October 13, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 10/10. 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.
Tue 10/209:06 am -
1 stop12h 05m
Fri 10/2310:18 pm -
1 stop26h 13m
Deal found 10/10![United Airlines logo]()
$1,022
This United Airlines deal was found by Cheapflights users on 10/9. 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.
Sun 10/256:05 am -
1 stop26h 44m
Thu 10/291:15 pm -
1 stop26h 50m
Deal found 10/9![United Airlines logo]()
$942
This United Airlines deal was found by Cheapflights users on 10/12. 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.
Tue 10/276:05 am -
1 stop18h 25m
Sat 10/313:37 pm -
1 stop25h 28m
Deal found 10/12![United Airlines logo]()
$992
One-way flights from Lancaster to Dulles IntlSearch for one-way flight options from Lancaster to Dulles Intl. Find affordable one-way fares based on user searches. Data last updated October 13, 2026.
Search for one-way flight options from Lancaster to Dulles Intl. Find affordable one-way fares based on user searches. Data last updated October 13, 2026.
This United Airlines deal was found by Cheapflights users on 10/8. 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.
Sun 11/158:07 pm -
1 stop17h 28m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/8![United Airlines logo]()
$325
This Kiwi.com deal was found by Cheapflights users on 10/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/258:23 pm -
1 stop11h 56m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/9![Multiple Airlines logo]()
$328
This United Airlines deal was found by Cheapflights users on 10/10. 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.
Sun 11/16:05 am -
1 stop26h 44m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/10![United Airlines logo]()
$366
This United Airlines deal was found by Cheapflights users on 10/10. 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 10/316:05 am -
1 stop15h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/10![United Airlines logo]()
$379
This United Airlines deal was found by Cheapflights users on 10/9. 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 12/249:47 am -
1 stop26h 07m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/9![United Airlines logo]()
$396
This United Airlines deal was found by Cheapflights users on 10/10. 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 10/308:07 pm -
1 stop25h 08m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/10![United Airlines logo]()
$409
This United Airlines deal was found by Cheapflights users on 10/10. 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 10/296:05 am -
1 stop7h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/10![United Airlines logo]()
$489
This United Airlines deal was found by Cheapflights users on 10/9. 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.
Sun 10/189:06 am -
1 stop6h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/9![United Airlines logo]()
$539
Find flight deals from Lancaster to Dulles Intl
Discover tips and strategies to find the most affordable flight options for your journey from Lancaster (LNS) 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 October 13, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $785 (United Airlines) |
One-way from | $325 (United Airlines) |
Good round-trip deal | $115 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Lancaster 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 7,457,451 searches. Data last updated October 13, 2026.
Use the filters below to find and compare flights from Lancaster to Washington, D.C. Dulles Intl Airport that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
LancasterWashington, D.C.
LNS Lancaster - IAD Washington, D.C. Dulles Intl
LNSIAD
Lancaster
Sun 11/15
8:07 pm-1:35 pm
1 stop17h 28m
Washington, D.C. Dulles Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$325
LancasterWashington, D.C.
LNS Lancaster - IAD Washington, D.C. Dulles Intl
LNSIAD
Lancaster
Fri 12/25
8:23 pm-8:19 am
1 stop11h 56m
Washington, D.C. Dulles Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$328
LancasterWashington, D.C.
LNS Lancaster - IAD Washington, D.C. Dulles Intl
LNSIAD
Lancaster
Sun 11/1
6:05 am-8:49 am
1 stop26h 44m
Washington, D.C. Dulles Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$366
LancasterWashington, D.C.
LNS Lancaster - IAD Washington, D.C. Dulles Intl
LNSIAD
Lancaster
Sat 1/9
9:20 am-9:18 pm
1 stop11h 58m
Washington, D.C. Dulles Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$366
LancasterWashington, D.C.
LNS Lancaster - IAD Washington, D.C. Dulles Intl
LNSIAD
Lancaster
Wed 11/4
8:07 pm-8:49 am
1 stop12h 42m
Washington, D.C. Dulles Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$366
LancasterWashington, D.C.
LNS Lancaster - IAD Washington, D.C. Dulles Intl
LNSIAD
Lancaster
Thu 12/24
9:47 am-11:54 am
1 stop26h 07m
Washington, D.C. Dulles Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$396
LancasterWashington, D.C.
LNS Lancaster - IAD Washington, D.C. Dulles Intl
LNSIAD
Lancaster
Fri 10/30
8:07 pm-9:15 pm
1 stop25h 08m
Washington, D.C. Dulles Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$409
Quickest round-trip
LancasterWashington, D.C.
LNS Lancaster - IAD Washington, D.C. Dulles Intl
LNSIAD
Lancaster
Thu 10/29
6:05 am-1:35 pm
1 stop7h 30m
Washington, D.C. Dulles Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$489
LancasterWashington, D.C.
LNS Lancaster - IAD Washington, D.C. Dulles Intl
LNSIAD
Lancaster
Wed 12/23
9:47 am-9:13 pm
1 stop11h 26m
Washington, D.C. Dulles Intl
Sun 12/27
10:10 am-7:56 pm
1 stop9h 46m
$785
LancasterWashington, D.C.
LNS Lancaster - IAD Washington, D.C. Dulles Intl
LNSIAD
Lancaster
Sun 10/25
6:05 am-8:49 am
1 stop26h 44m
Washington, D.C. Dulles Intl
Thu 10/29
1:15 pm-4:05 pm
1 stop26h 50m
$942
Showing 1-10 of 13 resultsSorted by cheapest first
Compare providers for flights from Lancaster 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 Lancaster to Dulles Intl in October.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Lancaster, Pennsylvania-Washington, D.C. Dulles Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Lancaster, Pennsylvania-Washington, D.C. Dulles Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Lancaster, Pennsylvania-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 Lancaster, Pennsylvania-Washington, D.C. Dulles Intl Airport flights, Cheapflights users trust FlightHub the most. FlightHub 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 Lancaster, Pennsylvania-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 Lancaster to Dulles Intl
Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Lancaster with our price prediction graph.
LNS-IAD
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.
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 October 13, 2026.
Read reviews from past customers who have flown Southern / Mokulele from Lancaster to Washington, D.C. Dulles Intl Airport. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Related info for your journey
Find useful and relevant information for your journey from Lancaster to Dulles Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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 locationsAlexandria
Chantilly
Arlington
Woodbridge
Owings Mills
Lanham
Sterling
Tysons
Herndon
Reston
Hyattsville
Rockville
Springfield
Fredericksburg
Falls Church
Oxon Hill
Laurel
Towson
Clinton
Hunt Valley
Browse thousands of different options on Cheapflights for your next trip
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Alternative routes for Lancaster to Dulles Intl
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Complete your trip
Complete your trip to Dulles Intl by adding a car rental and/or hotel reservation to your travel itinerary.
Other flights to Dulles Intl
Explore flights to Dulles Intl departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on October 13, 2026.
Search flights from Lancaster to Dulles Intl by cabin class
Find flights from Lancaster to Dulles Intl, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Lancaster and Dulles Intl flights
Browse other Lancaster and Dulles Intl flight options. Last updated on October 13, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top airline flying from Lancaster to Dulles Intl
Discover the top airline that operate flights from Lancaster 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 7,457,451 searches. Data last updated October 13, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$85 | Average$145 | FlexibilityNo cancel fee | On-timeN/A |