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 $591 on this airline. Additional options worth looking into are Delta and Lufthansa, starting at $598 and $600 round-trip. SWISS is currently priced 37% 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 SWISS, which is currently one of the cheapest options available, starting at $385. ITA Airways flights start at $412 while deals on United Airlines start at $420 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.

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.

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).

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 48 days in advance to save up to 36% 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 48 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 $802, or $925 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 $742 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 29% 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.

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.

$350+ 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

Round-trip from	$591 (Kiwi.com)
One-way from	$350 (Kiwi.com)
Popular in	April
Cheapest in	October
Average price	$1,044

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

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Highest demand for flights based on searches. 22% potential increase in price ($271 potential increase over avg. RT price).

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Cheapest flight prices on average. 8% potential price decrease ($72 potential savings vs. average RT price).

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Average for round-trip flights in June 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 June 26, 2025.

Thu 8/218:45 pmIAD - LCY

1 stop10h 45mSWISS

Mon 8/256:05 pmLCY - IAD

1 stop27h 10mSWISS

Deal found 6/26

$589

Sun 8/315:25 pmIAD - LCY

1 stop9h 45mDelta

Tue 10/149:20 amLCY - IAD

1 stop11h 15mDelta

Deal found 6/25

$598

Wed 8/1310:20 pmIAD - LCY

2 stops13h 05mLufthansa

Wed 8/208:45 amLCY - IAD

1 stop12h 05mLufthansa

Deal found 6/23

$600

Sun 8/108:45 pmIAD - LCY

1 stop10h 45mMultiple Airlines

Tue 8/198:45 amLCY - IAD

1 stop12h 05mMultiple Airlines

Deal found 6/24

$609

Sun 7/135:25 pmIAD - LCY

1 stop10h 25mVirgin Atlantic

Wed 7/237:45 amLCY - IAD

1 stop12h 50mVirgin Atlantic

Deal found 6/25

$611

Thu 9/45:25 pmIAD - LCY

1 stop10h 25mKLM

Fri 10/249:20 amLCY - IAD

1 stop11h 15mKLM

Deal found 6/25

$615

Tue 7/2912:12 pmIAD - LCY

2 stops16h 53mITA Airways

Wed 8/278:30 amLCY - IAD

1 stop35h 10mITA Airways

Deal found 6/24

$641

Mon 11/39:00 pmIAD - LCY

1 stop10h 40mAer Lingus

Wed 11/196:50 amLCY - IAD

1 stop13h 45mAer Lingus

Deal found 6/25

$739

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 June 26, 2025.

Thu 9/258:45 pmIAD - LCY

1 stop10h 45mSWISS

Tue 9/309:25 amLCY - IAD

1 stop11h 50mSWISS

Deal found 6/26

$591

Sun 8/315:25 pmIAD - LCY

1 stop9h 45mDelta

Fri 10/2410:00 amLCY - IAD

1 stop10h 35mDelta

Deal found 6/25

$598

Wed 8/1310:20 pmIAD - LCY

2 stops13h 05mLufthansa

Wed 8/208:45 amLCY - IAD

1 stop12h 05mLufthansa

Deal found 6/23

$600

Sun 8/108:45 pmIAD - LCY

1 stop10h 45mMultiple Airlines

Tue 8/198:45 amLCY - IAD

1 stop12h 05mMultiple Airlines

Deal found 6/24

$609

Sun 7/135:25 pmIAD - LCY

1 stop10h 25mVirgin Atlantic

Wed 7/237:45 amLCY - IAD

1 stop12h 50mVirgin Atlantic

Deal found 6/25

$611

Fri 9/195:25 pmIAD - LCY

1 stop9h 45mKLM

Fri 9/268:40 amLCY - IAD

1 stop11h 55mKLM

Deal found 6/26

$618

Tue 7/2912:12 pmIAD - LCY

2 stops16h 53mITA Airways

Wed 8/278:30 amLCY - IAD

1 stop35h 10mITA Airways

Deal found 6/24

$641

Mon 11/39:00 pmIAD - LCY

1 stop10h 40mAer Lingus

Wed 11/196:50 amLCY - IAD

1 stop13h 45mAer Lingus

Deal found 6/25

$739

Last-minute flights from Dulles Intl to London City
Discover last-minute flight deals from Dulles Intl to London City. Data last updated June 26, 2025 and is based on user searches.

Fri 7/45:25 pmIAD - LCY

1 stop10h 25mDelta

Wed 7/237:45 amLCY - IAD

1 stop12h 50mDelta

Deal found 6/25

$691

Fri 7/45:25 pmIAD - LCY

1 stop10h 25mKLM

Tue 7/2210:00 amLCY - IAD

1 stop10h 35mKLM

Deal found 6/25

$853

Sat 7/510:20 pmIAD - LCY

2 stops13h 55mMultiple Airlines

Sun 7/207:20 pmLCY - IAD

1 stop25h 55mMultiple Airlines

Deal found 6/25

$1,009

Sun 7/68:45 pmIAD - LCY

1 stop31h 05mSWISS

Tue 7/227:20 pmLCY - IAD

1 stop25h 55mSWISS

Deal found 6/25

$675

Sun 7/65:25 pmIAD - LCY

1 stop18h 55mVirgin Atlantic

Wed 8/69:20 amLCY - IAD

2 stops19h 01mVirgin Atlantic

Deal found 6/24

$803

Sun 7/66:10 pmIAD - LCY

1 stop19h 25mLufthansa

Thu 7/248:45 amLCY - IAD

2 stops15h 40mLufthansa

Deal found 6/25

$805

Sun 7/64:30 pmIAD - LCY

1 stop12h 35mITA Airways

Wed 7/164:50 pmLCY - IAD

1 stop26h 50mITA Airways

Deal found 6/26

$985

Sun 7/65:20 pmIAD - LCY

1 stop14h 25mAer Lingus

Thu 7/109:05 amLCY - IAD

1 stop11h 45mAer Lingus

Deal found 6/25

$1,423

Mon 7/75:25 pmIAD - LCY

1 stop10h 25mDelta

Tue 8/267:45 amLCY - IAD

1 stop12h 50mDelta

Deal found 6/26

$601

Tue 7/88:45 pmIAD - LCY

1 stop10h 45mSWISS

Tue 7/227:20 pmLCY - IAD

1 stop25h 55mSWISS

Deal found 6/25

$602

Sun 7/135:25 pmIAD - LCY

1 stop10h 25mVirgin Atlantic

Wed 7/237:45 amLCY - IAD

1 stop12h 50mVirgin Atlantic

Deal found 6/25

$611

Mon 7/143:25 pmIAD - LCY

1 stop11h 45mLufthansa

Mon 7/217:10 pmLCY - IAD

1 stop23h 20mLufthansa

Deal found 6/24

$725

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 June 26, 2025.

Wed 10/228:30 pmIAD - LCY

2 stops16h 00mMultiple Airlines

Deal found 6/24

$350

Mon 10/208:45 pmIAD - LCY

1 stop31h 05mSWISS

Deal found 6/25

$385

Tue 8/264:30 pmIAD - LCY

1 stop12h 35mITA Airways

Deal found 6/25

$412

Mon 11/35:25 pmIAD - LCY

1 stop14h 25mUnited Airlines

Deal found 6/25

$420

Mon 9/110:20 pmIAD - LCY

2 stops13h 05mLufthansa

Deal found 6/25

$454

Mon 8/118:23 pmIAD - LCY

2 stops15h 57mKLM

Deal found 6/24

$474

Tue 7/154:35 pmIAD - LCY

2 stops44h 50mIberia

Deal found 6/24

$511

Fri 9/263:00 pmIAD - LCY

2 stops15h 40mVirgin Atlantic

Deal found 6/24

$517

Sun 7/61:00 pmIAD - LCY

2 stops13h 15mDelta

Deal found 6/26

$535

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

Thu 8/21

8:45 pm-12:30 pm

1 stop10h 45m

London City

Mon 8/25

6:05 pm-4:15 pm

1 stop27h 10m

$589

Washington, D.C.London

IAD - LCY

IADLCY

Washington, D.C. Dulles Intl

Sun 8/31

5:25 pm-8:10 am

1 stop9h 45m

London City

Tue 10/14

9:20 am-3:35 pm

1 stop11h 15m

$598

Washington, D.C.London

IAD - LCY

IADLCY

Washington, D.C. Dulles Intl

Wed 8/13

10:20 pm-4:25 pm

2 stops13h 05m

London City

Wed 8/20

8:45 am-3:50 pm

1 stop12h 05m

$600

Washington, D.C.London

IAD - LCY

IADLCY

Washington, D.C. Dulles Intl

Sun 8/10

8:45 pm-12:30 pm

1 stop10h 45m

London City

Tue 8/19

8:45 am-3:50 pm

1 stop12h 05m

$609

Washington, D.C.London

IAD - LCY

IADLCY

Washington, D.C. Dulles Intl

Sun 7/13

5:25 pm-8:50 am

1 stop10h 25m

London City

Wed 7/23

7:45 am-3:35 pm

1 stop12h 50m

$611

Washington, D.C.London

IAD - LCY

IADLCY

Washington, D.C. Dulles Intl

Fri 9/19

5:25 pm-8:10 am

1 stop9h 45m

London City

Fri 9/26

8:40 am-3:35 pm

1 stop11h 55m

$618

Washington, D.C.London

IAD - LCY

IADLCY

Washington, D.C. Dulles Intl

Tue 7/29

12:12 pm-10:05 am

2 stops16h 53m

London City

Wed 8/27

8:30 am-2:40 pm

1 stop35h 10m

$641

Washington, D.C.London

IAD - LCY

IADLCY

Washington, D.C. Dulles Intl

Tue 9/2

11:15 pm-5:25 pm

2 stops13h 10m

$357

Washington, D.C.London

IAD - LCY

IADLCY

Washington, D.C. Dulles Intl

Wed 9/24

8:45 pm-8:50 am

1 stop31h 05m

$388

Washington, D.C.London

IAD - LCY

IADLCY

Washington, D.C. Dulles Intl

Tue 8/26

4:30 pm-10:05 am

1 stop12h 35m

$412

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/24

Showing 1-10 of 17 results

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.

Reviews of airlines servicing London City

See what other customers who have flown with Delta, KLM, and SWISS from Washington, D.C. Dulles Intl Airport to London City Airport have to say. 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

7,964 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Delta

8.0

Very good

7,964 reviews

Delta

8.0

Very good

7,964 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

KLM

7.8

Good

1,365 reviews

Delta

8.0

Very good

7,964 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

SWISS

7.5

Good

1,649 reviews

Delta

8.0

Very good

7,964 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

United Airlines

7.4

Good

8,838 reviews

Delta

8.0

Very good

7,964 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Virgin Atlantic

7.4

Good

654 reviews

Delta

8.0

Very good

7,964 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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 $591 on this airline. Additional options worth looking into are Delta and Lufthansa, starting at $598 and $600 round-trip. SWISS is currently priced 37% 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 SWISS, which is currently one of the cheapest options available, starting at $385. ITA Airways flights start at $412 while deals on United Airlines start at $420 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

Hayes

Hounslow

Thornton Heath

Canterbury

Harrow

Dover

Gatwick

Orpington

Watford

Croydon

Folkestone

Borehamwood

Aylesbury

Chelmsford

Brentwood

Chichester

Arundel

Milton Keynes

Bishop's Stortford

Dartford

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$350+ 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 10/22. 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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Cheap flight deals from Dulles Intl to London City

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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 June 26, 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 June 26, 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.

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.

Reviews of airlines servicing London City

See what other customers who have flown with Delta, KLM, and SWISS from Washington, D.C. Dulles Intl Airport to London City Airport have to say. You can also see how each airline compares 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?

Browse thousands of different options on Cheapflights for your next trip

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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 June 26, 2025.