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Dulles Intl

$448+ 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 5/21. Fares are subject to change and may not be available on all flights or dates of travel.
LCY — IAD
Apr 2 — Apr 91
Wed 4/2
Wed 4/9
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 March 28, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$713
(SWISS)

One-way from

$448
(Kiwi.com)

Popular in

July

Cheapest in

February

Average price

$679
Provider with most accurate pricing for London (LON)-Washington, D.C. (WAS) flight deals.
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Provider most trusted by Cheapflights users for London (LON)-Washington, D.C. (WAS) flights.
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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. 12% potential increase in price ($104 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($12 potential savings vs. average RT price).
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Average for round-trip flights in March 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 March 28, 2025.

This SWISS deal was found by Cheapflights users on 3/27. 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.
Fri 4/259:25 amLCY - IAD
1 stop11h 50mSWISS
Tue 4/298:45 pmIAD - LCY
1 stop15h 45mSWISS
Deal found 3/27$713
This TravelUp deal was found by Cheapflights users on 3/26. 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 TravelUp is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/98:40 amLCY - IAD
1 stop11h 55mKLM
Thu 5/155:25 pmIAD - LCY
1 stop9h 45mKLM
Deal found 3/26$715
This TravelTrolley deal was found by Cheapflights users on 3/27. 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 TravelTrolley is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/89:05 amLCY - IAD
1 stop11h 45mBritish Airways
Thu 9/185:20 pmIAD - LCY
1 stop10h 15mBritish Airways
Deal found 3/27$721
This Lufthansa deal was found by Cheapflights users on 3/26. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/258:55 amLCY - IAD
1 stop11h 55mLufthansa
Mon 4/2810:10 pmIAD - LCY
1 stop13h 15mLufthansa
Deal found 3/26$725
This TravelUp deal was found by Cheapflights users on 3/26. 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 TravelUp is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/2910:00 amLCY - IAD
1 stop10h 35mVirgin Atlantic
Thu 5/225:25 pmIAD - LCY
1 stop18h 55mVirgin Atlantic
Deal found 3/26$738
This Lufthansa deal was found by Cheapflights users on 3/27. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/248:45 amLCY - IAD
1 stop11h 15mMultiple Airlines
Wed 4/308:45 pmIAD - LCY
1 stop10h 45mMultiple Airlines
Deal found 3/27$770
This ITA Airways deal was found by Cheapflights users on 3/27. 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 ITA Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/144:50 pmLCY - IAD
1 stop26h 50mITA Airways
Tue 4/294:30 pmIAD - LCY
1 stop18h 45mITA Airways
Deal found 3/27$883
This Delta deal was found by Cheapflights users on 3/27. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/2510:00 amLCY - IAD
1 stop10h 35mDelta
Sat 5/245:25 pmIAD - LCY
1 stop14h 50mDelta
Deal found 3/27$907
This TravelUp deal was found by Cheapflights users on 3/27. 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 TravelUp is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/69:05 amLCY - IAD
1 stop11h 45mAer Lingus
Fri 5/95:20 pmIAD - LCY
1 stop13h 15mAer Lingus
Deal found 3/27$961

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 March 28, 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

Fri 4/25

9:25 am-4:15 pm

1 stop11h 50m

Washington, D.C. Dulles Intl

Tue 4/29

8:45 pm-5:30 pm

1 stop15h 45m

$713

LondonWashington, D.C.

LCY - IAD

LCYIAD

London City

Sat 4/26

8:40 am-3:35 pm

1 stop11h 55m

Washington, D.C. Dulles Intl

Wed 4/30

5:25 pm-8:50 am

1 stop10h 25m

$717

LondonWashington, D.C.

LCY - IAD

LCYIAD

London City

Mon 9/8

9:05 am-3:50 pm

1 stop11h 45m

Washington, D.C. Dulles Intl

Thu 9/18

5:20 pm-8:35 am

1 stop10h 15m

$721

LondonWashington, D.C.

LCY - IAD

LCYIAD

London City

Tue 4/29

10:00 am-3:35 pm

1 stop10h 35m

Washington, D.C. Dulles Intl

Thu 5/22

5:25 pm-5:20 pm

1 stop18h 55m

$738

LondonWashington, D.C.

LCY - IAD

LCYIAD

London City

Fri 4/25

8:55 am-3:50 pm

1 stop11h 55m

Washington, D.C. Dulles Intl

Sun 4/27

6:10 pm-4:25 pm

1 stop17h 15m

$765

LondonWashington, D.C.

LCY - IAD

LCYIAD

London City

Thu 4/24

8:45 am-3:00 pm

1 stop11h 15m

Washington, D.C. Dulles Intl

Wed 4/30

8:45 pm-12:30 pm

1 stop10h 45m

$771

LondonWashington, D.C.

LCY - IAD

LCYIAD

London City

Mon 4/14

4:50 pm-2:40 pm

1 stop26h 50m

Washington, D.C. Dulles Intl

Tue 4/29

4:30 pm-4:15 pm

1 stop18h 45m

$883

LondonWashington, D.C.

LCY - IAD

LCYIAD

London City

Fri 4/25

10:00 am-3:35 pm

1 stop10h 35m

Washington, D.C. Dulles Intl

Sat 5/24

5:25 pm-1:15 pm

1 stop14h 50m

$907

LondonWashington, D.C.

LCY - IAD

LCYIAD

London City

Tue 5/6

9:05 am-3:50 pm

1 stop11h 45m

Washington, D.C. Dulles Intl

Fri 5/9

5:20 pm-11:35 am

1 stop13h 15m

$961

LondonWashington, D.C.

LCY - IAD

LCYIAD

London City

Fri 6/13

7:45 am-3:35 pm

1 stop12h 50m

Washington, D.C. Dulles Intl

Sun 7/6

5:25 pm-8:50 am

1 stop10h 25m

$994

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/27

Showing 1-10 of 20 results
1
2

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.

Cheapflights Insights

Everything you need to know about your flight from London City Airport to Washington, D.C. Dulles Intl Airport

Rainfall in Dulles Intl by month

Plan your trip to Dulles Intl by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Washington, D.C. Dulles Intl Airport ranges from 2.6 - 4.0 inches per month. May is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit Washington, D.C. Dulles Intl Airport when rainfall is around 2.6 in.

Temperature in Dulles Intl by month

Plan your trip to Dulles Intl by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Washington, D.C. Dulles Intl Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

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 March 28, 2025.
Peruse reviews from past customers who have flown with Delta, KLM and SWISS from London to Washington, D.C. to help guide your decision. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,896 reviews

Crew

8.5

Comfort

8.0

Entertainment

7.9

Boarding

8.2

Overall

8.0

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Delta
8.0
Very good
7,896 reviews
Delta
8.0
Very good
7,896 reviews

Crew

8.5

Comfort

8.0

Entertainment

7.9

Boarding

8.2

Overall

8.0

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
KLM
7.8
Good
1,321 reviews
Delta
8.0
Very good
7,896 reviews

Crew

8.5

Comfort

8.0

Entertainment

7.9

Boarding

8.2

Overall

8.0

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
SWISS
7.5
Good
1,570 reviews
Delta
8.0
Very good
7,896 reviews

Crew

8.5

Comfort

8.0

Entertainment

7.9

Boarding

8.2

Overall

8.0

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Air France
7.4
Good
1,424 reviews
Delta
8.0
Very good
7,896 reviews

Crew

8.5

Comfort

8.0

Entertainment

7.9

Boarding

8.2

Overall

8.0

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Virgin Atlantic
7.4
Good
634 reviews
Delta
8.0
Very good
7,896 reviews

Crew

8.5

Comfort

8.0

Entertainment

7.9

Boarding

8.2

Overall

8.0

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

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.

  • What are the cheapest airlines flying from London City Airport to Washington, D.C. Dulles Intl Airport round-trip?

    Cheapflights users have booked flights from London City Airport to Washington, D.C. Dulles Intl Airport round-trip from $713. Other airlines that can offer you cheap pricing are KLM, from $717, and British Airways, from $721.

  • What are the cheapest airlines to fly from London City Airport to Washington, D.C. Dulles Intl Airport one-way?

    One-way options have recently been found by users for as low as $630 on SWISS. Other airlines that offer cheap prices include Lufthansa from $693 and Aer Lingus from $704 one-way.

  • 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, August is the cheapest month in which you can book a flight from London City Airport to Washington, D.C. Dulles Intl Airport (average of $309). Flying from London City Airport to Washington, D.C. Dulles Intl Airport in June is currently the most expensive (average of $385). 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 London City Airport?

Book flights to London City Airport if you plan to visit one of these locations
Arlington
Alexandria
Fairfax
Tysons
Springfield
Rockville
Woodbridge
Gaithersburg
Fredericksburg
Linthicum Heights
Silver Spring
Falls Church
Laurel
Easton
Herndon
Sterling
Bowie
Gettysburg
National Harbor
Oxon Hill

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