HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Dulles Intl

$541+ 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 6/23. Fares are subject to change and may not be available on all flights or dates of travel.
LCY — IAD
May 4 — May 111
Sun 5/4
Sun 5/11
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

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 April 29, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$720
(SWISS)

One-way from

$541
(Mytrip)

Popular in

July

Cheapest in

February

Average price

$710
Provider with most accurate pricing for London (LON)-Washington, D.C. (WAS) flight deals.
Search Deals
Provider most trusted by Cheapflights users for London (LON)-Washington, D.C. (WAS) 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. 11% potential increase in price ($99 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($12 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2025
Search Deals

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 April 29, 2025.

This SWISS deal was found by Cheapflights users on 4/28. 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
Wed 9/248:45 pmIAD - LCY
1 stop10h 45mSWISS
Deal found 4/28$720
This TravelUp deal was found by Cheapflights users on 4/28. 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 5/99:05 amLCY - IAD
1 stop11h 45mBritish Airways
Sun 5/118:25 pmIAD - LCY
1 stop11h 20mBritish Airways
Deal found 4/28$749
This ResecentrumGruppen deal was found by Cheapflights users on 4/26. 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 ResecentrumGruppen is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/99:20 amLCY - IAD
1 stop11h 15mKLM
Tue 5/135:25 pmIAD - LCY
1 stop9h 45mKLM
Deal found 4/26$762
This Lufthansa deal was found by Cheapflights users on 4/27. 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.
Tue 5/138:45 amLCY - IAD
1 stop11h 15mMultiple Airlines
Tue 5/208:45 pmIAD - LCY
1 stop10h 45mMultiple Airlines
Deal found 4/27$767
This Netflights deal was found by Cheapflights users on 4/27. 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 Netflights is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/1510:00 amLCY - IAD
1 stop10h 35mVirgin Atlantic
Sat 9/205:25 pmIAD - LCY
2 stops20h 10mVirgin Atlantic
Deal found 4/27$768
This oojo deal was found by Cheapflights users on 4/28. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/75:50 pmLCY - IAD
1 stop27h 00mLufthansa
Sun 9/2810:15 pmIAD - LCY
1 stop15h 20mLufthansa
Deal found 4/28$788
This Gotogate deal was found by Cheapflights users on 4/27. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/284:50 pmLCY - IAD
1 stop26h 50mITA Airways
Tue 5/134:30 pmIAD - LCY
1 stop12h 35mITA Airways
Deal found 4/27$857
This Delta deal was found by Cheapflights users on 4/28. 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.
Sat 5/248:40 amLCY - IAD
1 stop11h 55mDelta
Sat 5/315:25 pmIAD - LCY
1 stop14h 50mDelta
Deal found 4/28$952
This TravelUp deal was found by Cheapflights users on 4/28. 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 4/292:40 pmLCY - IAD
1 stop30h 10mAer Lingus
Mon 5/58:25 pmIAD - LCY
1 stop19h 25mAer Lingus
Deal found 4/28$993

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 April 29, 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

Wed 9/10

9:25 am-4:15 pm

1 stop11h 50m

Washington, D.C. Dulles Intl

Wed 9/24

8:45 pm-12:30 pm

1 stop10h 45m

$720

LondonWashington, D.C.

LCY - IAD

LCYIAD

London City

Fri 5/9

9:05 am-3:50 pm

1 stop11h 45m

Washington, D.C. Dulles Intl

Sun 5/11

8:25 pm-12:45 pm

1 stop11h 20m

$749

LondonWashington, D.C.

LCY - IAD

LCYIAD

London City

Fri 5/9

9:20 am-3:35 pm

1 stop11h 15m

Washington, D.C. Dulles Intl

Tue 5/13

5:25 pm-8:10 am

1 stop9h 45m

$762

LondonWashington, D.C.

LCY - IAD

LCYIAD

London City

Tue 5/13

8:45 am-3:00 pm

1 stop11h 15m

Washington, D.C. Dulles Intl

Tue 5/20

8:45 pm-12:30 pm

1 stop10h 45m

$767

LondonWashington, D.C.

LCY - IAD

LCYIAD

London City

Mon 9/15

10:00 am-3:35 pm

1 stop10h 35m

Washington, D.C. Dulles Intl

Sat 9/20

5:25 pm-6:35 pm

2 stops20h 10m

$768

LondonWashington, D.C.

LCY - IAD

LCYIAD

London City

Sun 9/7

5:50 pm-3:50 pm

1 stop27h 00m

Washington, D.C. Dulles Intl

Sun 9/28

10:15 pm-6:35 pm

1 stop15h 20m

$788

LondonWashington, D.C.

LCY - IAD

LCYIAD

London City

Fri 5/9

4:50 pm-2:40 pm

1 stop26h 50m

Washington, D.C. Dulles Intl

Fri 5/16

4:30 pm-10:05 am

1 stop12h 35m

$936

LondonWashington, D.C.

LCY - IAD

LCYIAD

London City

Sat 5/24

8:40 am-3:35 pm

1 stop11h 55m

Washington, D.C. Dulles Intl

Sat 5/31

5:25 pm-1:15 pm

1 stop14h 50m

$952

LondonWashington, D.C.

LCY - IAD

LCYIAD

London City

Wed 8/27

9:05 am-3:50 pm

1 stop11h 45m

Washington, D.C. Dulles Intl

Wed 9/3

9:00 pm-6:20 pm

1 stop16h 20m

$1,072

LondonWashington, D.C.

LCY - IAD

LCYIAD

London City

Mon 6/23

8:30 am-8:50 pm

2 stops17h 20m

$541

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/27

Showing 1-10 of 17 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 April 29, 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
7,929 reviews

Comfort

7.9

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Crew

8.5

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
7,929 reviews
Delta
8.0
Very good
7,929 reviews

Comfort

7.9

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Crew

8.5

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
1,333 reviews
Delta
8.0
Very good
7,929 reviews

Comfort

7.9

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Crew

8.5

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
1,587 reviews
Delta
8.0
Very good
7,929 reviews

Comfort

7.9

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Crew

8.5

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
642 reviews
Delta
8.0
Very good
7,929 reviews

Comfort

7.9

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Crew

8.5

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
Aer Lingus
7.0
Good
1,076 reviews
Delta
8.0
Very good
7,929 reviews

Comfort

7.9

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Crew

8.5

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 $720. Other airlines that can offer you cheap pricing are British Airways, from $749, and KLM, from $762.

  • 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 $654 on SWISS. Other airlines that offer cheap prices include Aer Lingus from $732 and Lufthansa from $766 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 $373). 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
Woodbridge
Fairfax
Tysons
Springfield
Rockville
Fredericksburg
Gaithersburg
Silver Spring
Linthicum Heights
Falls Church
Laurel
Easton
Herndon
Sterling
Bowie
Towson
National Harbor
Oxon Hill

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.

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.