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Dulles Intl

$545+ 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 9/3. Fares are subject to change and may not be available on all flights or dates of travel.
LCY — IAD
Aug 25 — Sep 11
Mon 8/25
Mon 9/1
1 adult, Economy
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Cheap 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 August 20, 2025.

Round-trip from

$625
(Gotogate)

One-way from

$545
(Kiwi.com)

Popular in

July

Cheapest in

February

Average price

$818
From London City to Washington, D.C. Dulles Intl
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One-way flight from London City to Washington, D.C. Dulles Intl
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Highest demand for flights based on searches. 11% potential increase in price ($95 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($13 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Find 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 August 20, 2025.

This Gotogate deal was found by Cheapflights users on 8/18. 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.
Thu 10/29:25 amLCY - IAD
1 stop11h 50mSWISS
Thu 10/98:45 pmIAD - LCY
1 stop15h 30mSWISS
Deal found 8/18$625
This Flightnetwork deal was found by Cheapflights users on 8/18. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/259:25 amLCY - IAD
1 stop11h 50mSWISS
Wed 10/88:45 pmIAD - LCY
1 stop15h 30mSWISS
Deal found 8/18$636
This Mytrip deal was found by Cheapflights users on 8/18. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/259:25 amLCY - IAD
1 stop11h 50mSWISS
Wed 10/18:45 pmIAD - LCY
1 stop15h 30mSWISS
Deal found 8/18$639
This SWISS deal was found by Cheapflights users on 8/19. 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 SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/109:25 amLCY - IAD
1 stop11h 50mSWISS
Mon 9/225:45 pmIAD - LCY
1 stop13h 45mSWISS
Deal found 8/19$653
This SWISS deal was found by Cheapflights users on 8/18. 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 SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/99:25 amLCY - IAD
1 stop11h 50mSWISS
Mon 9/225:45 pmIAD - LCY
1 stop13h 45mSWISS
Deal found 8/18$654
This Expedia deal was found by Cheapflights users on 8/18. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/59:25 amLCY - IAD
1 stop11h 50mSWISS
Tue 9/98:45 pmIAD - LCY
1 stop10h 45mSWISS
Deal found 8/18$655

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 August 20, 2025.
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

London City

Fly to

Dulles Intl

Route

Depart

Return

Price

LondonWashington, D.C.

LCY - IAD

LCYIAD

London City

Thu 10/2

9:25 am-4:15 pm

1 stop11h 50m

Washington, D.C. Dulles Intl

Thu 10/9

8:45 pm-5:15 pm

1 stop15h 30m

$625

LondonWashington, D.C.

LCY - IAD

LCYIAD

London City

Thu 9/25

9:25 am-4:15 pm

1 stop11h 50m

Washington, D.C. Dulles Intl

Wed 10/8

8:45 pm-5:15 pm

1 stop15h 30m

$636

LondonWashington, D.C.

LCY - IAD

LCYIAD

London City

Thu 9/25

9:25 am-4:15 pm

1 stop11h 50m

Washington, D.C. Dulles Intl

Wed 10/1

8:45 pm-5:15 pm

1 stop15h 30m

$639

LondonWashington, D.C.

LCY - IAD

LCYIAD

London City

Tue 9/9

9:25 am-4:15 pm

1 stop11h 50m

Washington, D.C. Dulles Intl

Mon 9/22

5:45 pm-12:30 pm

1 stop13h 45m

$653

LondonWashington, D.C.

LCY - IAD

LCYIAD

London City

Wed 9/10

9:25 am-4:15 pm

1 stop11h 50m

Washington, D.C. Dulles Intl

Tue 9/16

8:45 pm-12:30 pm

1 stop10h 45m

$653

LondonWashington, D.C.

LCY - IAD

LCYIAD

London City

Wed 9/3

9:25 am-8:50 pm

2 stops16h 25m

$545

LondonWashington, D.C.

LCY - IAD

LCYIAD

London City

Wed 10/8

9:25 am-8:50 pm

2 stops16h 25m

$549

LondonWashington, D.C.

LCY - IAD

LCYIAD

London City

Wed 9/24

9:25 am-8:50 pm

2 stops16h 25m

$549

LondonWashington, D.C.

LCY - IAD

LCYIAD

London City

Tue 10/7

9:25 am-8:50 pm

2 stops16h 25m

$552

LondonWashington, D.C.

LCY - IAD

LCYIAD

London City

Wed 8/27

8:30 am-8:50 pm

2 stops17h 20m

$563

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/20

Showing 1-10 of 15 results
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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 can get you from London City Airport to Washington, D.C. Dulles Intl Airport in just under 11h 50m. Your travel time can differ by up to . Airlines will cover a distance of 3684 mi.

  • 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.

  • What is the cheapest month to book a flight from London City Airport to Washington, D.C. Dulles Intl Airport?

    Currently, July is the cheapest month in which you can book a flight from London City Airport to Washington, D.C. Dulles Intl Airport (average of $303). Flying from London City Airport to Washington, D.C. Dulles Intl Airport in April is currently the most expensive (average of $337). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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
Woodbridge
Arlington
Alexandria
Tysons
Silver Spring
Springfield
Fredericksburg
Gaithersburg
Towson
Linthicum Heights
Fairfax
Manassas
Falls Church
Laurel
Rockville
Oxon Hill
National Harbor
Dundalk
Waldorf
Bowie

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