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

Our cheapest airline available from Washington, D.C. Dulles Intl Airport to London City Airport is SWISS. Our recent data shows that you can find tickets from as low as $652 on this airline. Additional options worth looking into are Virgin Atlantic and KLM, starting at $664 and $686 round-trip. SWISS is currently priced 23% below the average price you’ll pay for this route.

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

To fly one-way, consider booking your trip with ITA Airways, which is currently one of the cheapest options available, starting at $424. SWISS flights start at $425 while deals on United Airlines start at $454 one-way.

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

Currently, April is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to London City Airport (average of $686). Flying from Washington, D.C. Dulles Intl Airport to London City Airport in July is currently the most expensive (average of $1,046). 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.

What is the cheapest day to fly from Washington, D.C. Dulles Intl Airport to London City Airport?

Travelers seeking maximum savings on their Washington, D.C. Dulles Intl Airport to London City Airport flight should consider departing on Sunday afternoons when fares are most often at their lowest. Friday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

What is the cheapest day to fly round-trip from Washington, D.C. Dulles Intl Airport to London City Airport?

Users have found that flying from Washington, D.C. Dulles Intl Airport to London City Airport on a Wednesday typically leans towards higher prices. However, this doesn’t mean you still can’t find a deal. Flexibility with other aspects of your flight can still land a great price for your trip.

How far in advance should I book a flight from Washington, D.C. Dulles Intl Airport to London City Airport?

Travelers have found it’s best to book a flight 39 days in advance to save up to 16% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 39 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from Washington, D.C. Dulles Intl Airport to London City Airport 1-2 weeks in advance for as low as $800, or $800 for flights within the next 24 hours.

What is the cheapest month to fly from Washington, D.C. Dulles Intl Airport to London City Airport?

January is one of the best times of the year to fly to London City Airport from Washington, D.C. Dulles Intl Airport. Prices for January average $748 per person but you can even find prices for as low as $385. The most expensive prices can be found in the month of June. Opting for a January flight can save you 35% on your journey compared to booking in June

What is the cheapest time of day to fly from IAD to LCY?

It’s optimal to fly from Washington, D.C. Dulles Intl Airport to London City Airport at noon. By choosing this option you can save up to 3% on the cost of your flight, compared to a flight in the morning.

Most accurate provider : When it comes to deals on Washington, D.C. Dulles Intl Airport-London City Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Washington, D.C. Dulles Intl Airport-London City Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Washington, D.C. Dulles Intl Airport-London City Airport flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on Washington, D.C. Dulles Intl Airport-London City 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 Washington, D.C. Dulles Intl Airport-London City Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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

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

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

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

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

Yes. Cheapflights offers flight deals from Dulles Intl to London City by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$303+ Flights from Washington, D.C. Dulles Intl Airport to London City Airport

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Cheap flight deals from Dulles Intl to London City

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$652 (Kiwi.com)
One-way from	$303 (Kiwi.com)
Popular in	April
Cheapest in	March
Average price	$645

Provider with most accurate pricing for Washington, D.C. Dulles Intl-London City flight deals.

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Provider most trusted by Cheapflights users for Washington, D.C. Dulles Intl-London City flights.

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From Washington, D.C. Dulles Intl to London City

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One-way flight from Washington, D.C. Dulles Intl to London City

Search Deals

Highest demand for flights based on searches. 12% potential increase in price ($119 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 7% potential price decrease ($59 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 Dulles Intl to London City

Cheapest flights from Dulles Intl to London City
Explore the most affordable flight options available from Dulles Intl to London City. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 21, 2025.

Sun 10/58:45 pmIAD - LCY

1 stop10h 45mSWISS

Fri 10/179:25 amLCY - IAD

1 stop11h 50mSWISS

Deal found 3/20

$638

Mon 5/125:25 pmIAD - LCY

1 stop10h 25mVirgin Atlantic

Tue 5/2010:00 amLCY - IAD

1 stop10h 35mVirgin Atlantic

Deal found 3/20

$664

Mon 9/224:30 pmIAD - LCY

1 stop12h 35mITA Airways

Mon 9/294:50 pmLCY - IAD

1 stop26h 50mITA Airways

Deal found 3/20

$672

Sun 4/65:25 pmIAD - LCY

1 stop18h 55mKLM

Tue 4/159:20 amLCY - IAD

1 stop11h 15mKLM

Deal found 3/21

$684

Wed 4/168:45 pmIAD - LCY

1 stop15h 30mMultiple Airlines

Wed 4/238:45 amLCY - IAD

1 stop12h 05mMultiple Airlines

Deal found 3/20

$685

Sat 4/196:10 pmIAD - LCY

1 stop18h 05mLufthansa

Tue 4/298:45 amLCY - IAD

1 stop12h 05mLufthansa

Deal found 3/20

$753

Tue 9/25:25 pmIAD - LCY

1 stop9h 45mDelta

Sun 9/71:45 pmLCY - IAD

2 stops27h 10mDelta

Deal found 3/19

$804

Best flights from Dulles Intl to London City
Discover carefully curated flight deals from Dulles Intl to London City that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated March 21, 2025.

Tue 4/88:45 pmIAD - LCY

1 stop10h 45mSWISS

Tue 4/157:20 pmLCY - IAD

1 stop25h 55mSWISS

Deal found 3/20

$652

Mon 5/125:25 pmIAD - LCY

1 stop10h 25mVirgin Atlantic

Tue 5/2010:00 amLCY - IAD

1 stop10h 35mVirgin Atlantic

Deal found 3/20

$664

Wed 4/168:45 pmIAD - LCY

1 stop15h 30mMultiple Airlines

Wed 4/238:45 amLCY - IAD

1 stop12h 05mMultiple Airlines

Deal found 3/20

$685

Sun 4/65:25 pmIAD - LCY

1 stop11h 05mKLM

Tue 4/1510:00 amLCY - IAD

1 stop10h 35mKLM

Deal found 3/20

$686

Wed 4/235:25 pmIAD - LCY

1 stop10h 25mDelta

Tue 4/2910:00 amLCY - IAD

1 stop10h 35mDelta

Deal found 3/19

$693

Tue 4/14:30 pmIAD - LCY

1 stop12h 35mITA Airways

Thu 4/104:50 pmLCY - IAD

1 stop26h 50mITA Airways

Deal found 3/20

$703

Sat 4/196:10 pmIAD - LCY

1 stop18h 05mLufthansa

Tue 4/298:45 amLCY - IAD

1 stop12h 05mLufthansa

Deal found 3/20

$753

Sun 4/68:25 pmIAD - LCY

1 stop11h 20mBritish Airways

Tue 4/159:05 amLCY - IAD

1 stop11h 45mBritish Airways

Deal found 3/20

$904

Last-minute flights from Dulles Intl to London City
Discover last-minute flight deals from Dulles Intl to London City. Data last updated March 21, 2025 and is based on user searches.

Wed 3/266:35 pmIAD - LCY

1 stop9h 35mKLM

Tue 4/18:10 pmLCY - IAD

1 stop24h 25mKLM

Deal found 3/19

$822

Wed 3/266:10 pmIAD - LCY

1 stop10h 25mBritish Airways

Fri 4/46:45 amLCY - IAD

1 stop14h 05mBritish Airways

Deal found 3/20

$1,003

Thu 3/275:45 pmIAD - LCY

1 stop18h 25mITA Airways

Mon 3/314:50 pmLCY - IAD

1 stop26h 50mITA Airways

Deal found 3/20

$854

Fri 3/286:35 pmIAD - LCY

1 stop10h 55mDelta

Fri 4/118:40 amLCY - IAD

1 stop11h 55mDelta

Deal found 3/21

$870

Sat 3/299:45 pmIAD - LCY

1 stop31h 35mAer Lingus

Wed 4/26:45 amLCY - IAD

1 stop14h 05mAer Lingus

Deal found 3/20

$1,253

Mon 3/318:45 pmIAD - LCY

1 stop10h 45mSWISS

Wed 5/149:25 amLCY - IAD

1 stop11h 50mSWISS

Deal found 3/20

$813

Mon 3/318:45 pmIAD - LCY

1 stop10h 45mMultiple Airlines

Thu 4/108:45 amLCY - IAD

1 stop12h 05mMultiple Airlines

Deal found 3/19

$817

Mon 3/315:25 pmIAD - LCY

1 stop11h 05mVirgin Atlantic

Thu 4/1010:00 amLCY - IAD

2 stops14h 41mVirgin Atlantic

Deal found 3/19

$839

Tue 4/14:30 pmIAD - LCY

1 stop12h 35mITA Airways

Thu 4/104:50 pmLCY - IAD

1 stop26h 50mITA Airways

Deal found 3/20

$703

Sun 4/68:45 pmIAD - LCY

1 stop15h 45mSWISS

Tue 4/159:25 amLCY - IAD

1 stop11h 50mSWISS

Deal found 3/21

$651

Sun 4/65:25 pmIAD - LCY

1 stop18h 55mKLM

Tue 4/159:20 amLCY - IAD

1 stop11h 15mKLM

Deal found 3/21

$684

Sun 4/65:20 pmIAD - LCY

1 stop10h 10mBritish Airways

Tue 4/159:05 amLCY - IAD

1 stop11h 45mBritish Airways

Deal found 3/21

$901

One-way flights from Dulles Intl to London City
Search for one-way flight options from Dulles Intl to London City. Find affordable one-way fares based on user searches. Data last updated March 21, 2025.

Sun 4/278:30 pmIAD - LCY

3 stops43h 20mMultiple Airlines

Deal found 3/20

$303

Sun 4/64:30 pmIAD - LCY

1 stop18h 45mITA Airways

Deal found 3/20

$424

Sun 5/48:45 pmIAD - LCY

1 stop10h 45mSWISS

Deal found 3/20

$425

Sat 5/35:10 pmIAD - LCY

2 stops38h 20mUnited Airlines

Deal found 3/20

$454

Tue 4/152:12 pmIAD - LCY

2 stops16h 43mBritish Airways

Deal found 3/20

$464

Wed 4/3010:20 pmIAD - LCY

2 stops15h 15mLufthansa

Deal found 3/19

$476

Fri 4/185:25 pmIAD - LCY

1 stop9h 45mKLM

Deal found 3/20

$493

Fri 5/28:33 pmIAD - LCY

2 stops35h 42mDelta

Deal found 3/20

$523

Thu 4/249:20 amIAD - LCY

2 stops16h 55mVirgin Atlantic

Deal found 3/20

$620

Cheapflights Fare Finder

Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to London City Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.London

IAD - LCY

IADLCY

Washington, D.C. Dulles Intl

Sun 4/6

8:45 pm-5:30 pm

1 stop15h 45m

London City

Tue 4/15

9:25 am-4:15 pm

1 stop11h 50m

$651

Washington, D.C.London

IAD - LCY

IADLCY

Washington, D.C. Dulles Intl

Mon 5/12

5:25 pm-8:50 am

1 stop10h 25m

London City

Tue 5/20

10:00 am-3:35 pm

1 stop10h 35m

$664

Washington, D.C.London

IAD - LCY

IADLCY

Washington, D.C. Dulles Intl

Sun 4/6

5:25 pm-5:20 pm

1 stop18h 55m

London City

Tue 4/15

9:20 am-3:35 pm

1 stop11h 15m

$684

Washington, D.C.London

IAD - LCY

IADLCY

Washington, D.C. Dulles Intl

Wed 4/16

8:45 pm-5:15 pm

1 stop15h 30m

London City

Wed 4/23

8:45 am-3:50 pm

1 stop12h 05m

$685

Washington, D.C.London

IAD - LCY

IADLCY

Washington, D.C. Dulles Intl

Tue 4/1

4:30 pm-10:05 am

1 stop12h 35m

London City

Thu 4/10

4:50 pm-2:40 pm

1 stop26h 50m

$703

Washington, D.C.London

IAD - LCY

IADLCY

Washington, D.C. Dulles Intl

Sat 4/19

6:10 pm-5:15 pm

1 stop18h 05m

London City

Tue 4/29

8:45 am-3:50 pm

1 stop12h 05m

$753

Washington, D.C.London

IAD - LCY

IADLCY

Washington, D.C. Dulles Intl

Tue 9/2

5:25 pm-8:10 am

1 stop9h 45m

London City

Sun 9/7

1:45 pm-11:55 am

2 stops27h 10m

$804

Washington, D.C.London

IAD - LCY

IADLCY

Washington, D.C. Dulles Intl

Sun 4/27

8:30 pm-8:50 pm

3 stops43h 20m

$303

Washington, D.C.London

IAD - LCY

IADLCY

Washington, D.C. Dulles Intl

Sun 4/6

4:30 pm-4:15 pm

1 stop18h 45m

$424

Washington, D.C.London

IAD - LCY

IADLCY

Washington, D.C. Dulles Intl

Sun 5/4

8:45 pm-12:30 pm

1 stop10h 45m

$425

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/20

Showing 1-10 of 17 results

Compare providers for flights from Dulles Intl to London City

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Dulles Intl to London City in March.

Provider	Price Accuracy	Trust Score*
FlightHub	Price Accuracy3 stars	Trust Score*3 stars
AranGrant	Price Accuracy3 stars	Trust Score*1 star
eDreams	Price Accuracy3 stars	Trust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

Most accurate provider: When it comes to deals on Washington, D.C. Dulles Intl Airport-London City Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Washington, D.C. Dulles Intl Airport-London City Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Washington, D.C. Dulles Intl Airport-London City Airport flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on Washington, D.C. Dulles Intl Airport-London City 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 Washington, D.C. Dulles Intl Airport-London City 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 Dulles Intl to London City

Have a flexible travel schedule? Discover the best time to fly to London City from Dulles Intl 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 Washington, D.C. Dulles Intl Airport to London City Airport

Rainfall in London City by month

In terms of precipitation, rainfall in London City Airport ranges from 1.6 - 2.8 inches per month. January is typically the wettest month, when rainfall can reach 2.8 in. July is typically the driest time to visit London City Airport when rainfall is around 1.6 in.

Temperature in London City by month

If weather is an important factor for your trip to London City 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 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 39.2 F).

Reviews of airlines servicing London City

To help decide which airline to fly from Washington, D.C. to London, see what other customers have to say about Delta, KLM and SWISS. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very good

7,895 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Delta

8.0

Very good

7,895 reviews

Delta

8.0

Very good

7,895 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

KLM

7.8

Good

1,319 reviews

Delta

8.0

Very good

7,895 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

SWISS

7.5

Good

1,567 reviews

Delta

8.0

Very good

7,895 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

United Airlines

7.4

Good

8,605 reviews

Delta

8.0

Very good

7,895 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Virgin Atlantic

7.4

Good

634 reviews

Delta

8.0

Very good

7,895 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

What are the cheapest airlines flying from Washington, D.C. Dulles Intl Airport to London City Airport round-trip?
Our cheapest airline available from Washington, D.C. Dulles Intl Airport to London City Airport is SWISS. Our recent data shows that you can find tickets from as low as $652 on this airline. Additional options worth looking into are Virgin Atlantic and KLM, starting at $664 and $686 round-trip. SWISS is currently priced 23% below the average price you’ll pay for this route.
What are the cheapest airlines to fly from Washington, D.C. Dulles Intl Airport to London City Airport one-way?
To fly one-way, consider booking your trip with ITA Airways, which is currently one of the cheapest options available, starting at $424. SWISS flights start at $425 while deals on United Airlines start at $454 one-way.
Can I find deals for flights from Dulles Intl to London City that include hotel bookings?
Yes. In addition to deals on Dulles Intl to London City flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Dulles Intl to London City?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Dulles Intl to London City.
Can I find deals for business class flights from Dulles Intl to London City?
Yes. Cheapflights offers flight deals from Dulles Intl to London City 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 Washington, D.C. Dulles Intl Airport to London City Airport?
Currently, April is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to London City Airport (average of $686). Flying from Washington, D.C. Dulles Intl Airport to London City Airport in July is currently the most expensive (average of $1,046). 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

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$303+ Cheap flights from Dulles Intl (IAD) to London City (LCY)

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 4/27. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Dulles Intl to London City with Cheapflights

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2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Dulles Intl to London City

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

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Find flight deals from Dulles Intl to London City

Cheapest flights from Dulles Intl to London CityExplore the most affordable flight options available from Dulles Intl to London City. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 21, 2025.

Explore the most affordable flight options available from Dulles Intl to London City. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 21, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to London City Airport that are best for you.

Compare providers for flights from Dulles Intl to London City

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 Dulles Intl to London City in March.

Best time to book a flight from Dulles Intl to London City

Have a flexible travel schedule? Discover the best time to fly to London City from Dulles Intl with our price prediction graph.

Cheapflights Insights

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

Rainfall in London City by month

Plan your trip to London City by taking into account the average rainfall totals by month.

Temperature in London City by month

Plan your trip to London City by taking into account the average temperature totals by month.

Reviews of airlines servicing London City

To help decide which airline to fly from Washington, D.C. to London, see what other customers have to say about Delta, KLM and SWISS. You can also see how each airline stacks up 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 Dulles Intl to London City. 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 Washington, D.C. Dulles Intl Airport to London City Airport round-trip?

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

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

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

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

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

Traveling to a place near Washington, D.C. Dulles Intl Airport?

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Alternative routes for Dulles Intl to London City

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Cheapest flights from Dulles Intl to London City
Explore the most affordable flight options available from Dulles Intl to London City. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 21, 2025.