HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Dulles Intl

$455+ Cheap flights from London City (LCY) 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 10/12. Fares are subject to change and may not be available on all flights or dates of travel.
LCY — IAD
Aug 17 — Aug 241
Mon 8/17
Mon 8/24
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from London City 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 London City to Dulles Intl

Cheapest flights from London City to Dulles Intl
Explore the most affordable flight options available from London City to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 18, 2026.

This Cheapflightsfares deal was found by Cheapflights users on 7/17. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/79:15 am
LCY
-
IAD
1 stop12h 30m
SWISS
Mon 11/28:10 pm
IAD
-
LCY
1 stop11h 40m
SWISS
Deal found 7/17$639
This Cheapflightsfares deal was found by Cheapflights users on 7/16. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/189:15 am
LCY
-
IAD
1 stop12h 30m
SWISS
Mon 9/218:20 pm
IAD
-
LCY
1 stop11h 15m
SWISS
Deal found 7/16$641
This Globehunters deal was found by Cheapflights users on 7/17. 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 Globehunters is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/129:50 am
LCY
-
IAD
1 stop15h 15m
Lufthansa
Sun 11/155:15 pm
IAD
-
LCY
1 stop19h 25m
Lufthansa
Deal found 7/17$642
This Gotogate deal was found by Cheapflights users on 7/13. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/219:15 am
LCY
-
IAD
1 stop12h 30m
SWISS
Tue 9/298:20 pm
IAD
-
LCY
1 stop11h 15m
SWISS
Deal found 7/13$645
This Gotogate deal was found by Cheapflights users on 7/13. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/179:00 am
LCY
-
IAD
1 stop12h 45m
SWISS
Sat 10/319:10 pm
IAD
-
LCY
1 stop11h 30m
SWISS
Deal found 7/13$646
This Globehunters deal was found by Cheapflights users on 7/17. 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 Globehunters is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/179:15 am
LCY
-
IAD
1 stop11h 50m
Lufthansa
Tue 9/295:55 pm
IAD
-
LCY
1 stop19h 00m
Lufthansa
Deal found 7/17$647
This Cheapflightsfares deal was found by Cheapflights users on 7/16. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/119:15 am
LCY
-
IAD
1 stop12h 30m
SWISS
Mon 9/148:20 pm
IAD
-
LCY
1 stop11h 15m
SWISS
Deal found 7/16$653
This Gotogate deal was found by Cheapflights users on 7/13. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/246:00 pm
LCY
-
IAD
1 stop27h 45m
SWISS
Sun 9/68:20 pm
IAD
-
LCY
1 stop17h 20m
SWISS
Deal found 7/13$654
This Kiwi.com deal was found by Cheapflights users on 7/17. 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.
Wed 9/169:15 am
LCY
-
IAD
1 stop12h 30m
SWISS
Sun 9/208:20 pm
IAD
-
LCY
1 stop16h 05m
SWISS
Deal found 7/17$655
This Gotogate deal was found by Cheapflights users on 7/15. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/99:15 am
LCY
-
IAD
1 stop12h 30m
SWISS
Wed 9/168:20 pm
IAD
-
LCY
1 stop11h 15m
SWISS
Deal found 7/15$656
This Gotogate deal was found by Cheapflights users on 7/14. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/189:15 am
LCY
-
IAD
1 stop12h 30m
SWISS
Sat 10/38:20 pm
IAD
-
LCY
1 stop12h 25m
SWISS
Deal found 7/14$657

Find flight deals from London City to Dulles Intl

Discover tips and strategies to find the most affordable flight options for your journey from London City (LCY) 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 July 18, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$639
(Cheapflightsfares)

One-way from

$455
(Kiwi.com)

Popular in

June

Cheapest in

February

Average price

$762
Provider with most accurate pricing for London City-Washington, D.C. Dulles Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for London City-Washington, D.C. Dulles Intl flights.
Search Deals
From London City to Washington, D.C. Dulles Intl
Search Deals
One-way flight from London City to Washington, D.C. Dulles Intl
Search Deals
Highest demand for flights based on searches. 9% potential increase in price ($71 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($8 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from London City 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 July 18, 2026.
Use the filters below to find and compare flights from London City Airport to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

LondonWashington, D.C.

LCY - IAD

LCYIAD

London City

Thu 10/29

7:05 pm-3:30 pm

1 stop24h 25m

Washington, D.C. Dulles Intl

Mon 11/9

5:25 pm-12:50 pm

1 stop14h 25m

$688

LondonWashington, D.C.

LCY - IAD

LCYIAD

London City

Fri 9/4

9:20 am-11:26 pm

2 stops19h 06m

Washington, D.C. Dulles Intl

Sat 9/12

6:26 pm-5:20 pm

2 stops17h 54m

$718

LondonWashington, D.C.

LCY - IAD

LCYIAD

London City

Tue 12/22

7:45 am-6:05 pm

2 stops15h 20m

Washington, D.C. Dulles Intl

Wed 12/30

6:20 pm-6:25 pm

1 stop19h 05m

$749
Quickest round-trip

LondonWashington, D.C.

LCY - IAD

LCYIAD

London City

Mon 8/17

8:10 am-3:30 pm

1 stop12h 20m

Washington, D.C. Dulles Intl

Sun 8/23

5:40 pm-12:35 pm

1 stop13h 55m

$754

LondonWashington, D.C.

LCY - IAD

LCYIAD

London City

Mon 8/3

8:10 am-3:30 pm

1 stop12h 20m

Washington, D.C. Dulles Intl

Sun 8/23

5:40 pm-12:35 pm

1 stop13h 55m

$799

LondonWashington, D.C.

LCY - IAD

LCYIAD

London City

Wed 8/26

9:20 am-11:26 pm

2 stops19h 06m

Washington, D.C. Dulles Intl

Sun 8/30

5:40 pm-9:50 am

1 stop11h 10m

$822

LondonWashington, D.C.

LCY - IAD

LCYIAD

London City

Sun 10/4

8:45 pm-6:05 pm

2 stops26h 20m

Washington, D.C. Dulles Intl

Fri 4/30

5:40 pm-9:30 am

1 stop10h 50m

$882

LondonWashington, D.C.

LCY - IAD

LCYIAD

London City

Sun 8/30

8:45 pm-8:05 pm

2 stops28h 20m

Washington, D.C. Dulles Intl

Sun 9/6

11:10 am-9:30 am

2 stops17h 20m

$909

LondonWashington, D.C.

LCY - IAD

LCYIAD

London City

Thu 8/27

9:20 am-8:55 pm

2 stops16h 35m

Washington, D.C. Dulles Intl

Sun 8/30

5:40 pm-9:30 am

1 stop10h 50m

$927

LondonWashington, D.C.

LCY - IAD

LCYIAD

London City

Thu 8/13

10:00 am-12:34 am

2 stops19h 34m

Washington, D.C. Dulles Intl

Sun 8/23

5:40 pm-8:50 am

1 stop10h 10m

$931

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/15

Showing 1-10 of 21 resultsSorted by cheapest first
1
2
3
  • Most accurate provider: When it comes to deals on London City Airport-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 London City Airport-Washington, D.C. Dulles Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from London City 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 London City Airport-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 London City 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 London City to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from London City 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.

Related info for your journey

Find useful and relevant information for your journey from London City 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 London City Airport to Washington, D.C. Dulles Intl Airport?

    SWISS and Virgin Atlantic can get you from London City Airport to Washington, D.C. Dulles Intl Airport in just under 19h 06m. Your travel time can differ by up to 5h 19m. Airlines will cover a distance of 3684 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • Can I find deals for flights from London City to Dulles Intl that include hotel bookings?

    Yes. In addition to deals on London City to Dulles Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from London City to Dulles Intl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from London City to Dulles Intl.

  • Can I find deals for business class flights from London City to Dulles Intl?

    Yes. Cheapflights offers flight deals from London City 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.

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
Arlington
Tysons
Owings Mills
Springfield
Lanham
Reston
Herndon
Rockville
Chantilly
Hyattsville
Manassas
Fredericksburg
Falls Church
Hanover
Laurel
Sterling
Clinton
Hunt Valley
Cordova

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for London City to Dulles Intl

See prices for flight routes from nearby airports that may be better suited for you.
Heathrow to Dulles Intl flights
Heathrow to Baltimore flights
Gatwick to Dulles Intl flights
Heathrow to Reagan-National flights
Stansted to Baltimore flights

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.