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

For one-way options, check prices for Icelandair. According to our data, you can fly for as low as $272. Users have also found prices from $275 and $401 on TAP AIR PORTUGAL and Porter Airlines, respectively.

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

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

In terms of precipitation, rainfall in London Gatwick 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 Gatwick Airport when rainfall is around 1.6 in.

If weather is an important factor for your trip to London Gatwick 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 Gatwick Airport?

Sunday flights are generally found to be more expensive for flights from Washington, D.C. Dulles Intl Airport to London Gatwick Airport. This shouldn’t discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to London Gatwick Airport.

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

The best pricing can be found in the month of January. Prices to London Gatwick Airport from Washington, D.C. Dulles Intl Airport average $742. You can even find prices in January for less than $742, as users have found deals to London Gatwick Airport from as low as $385. The month of June appears to be one of the more expensive times to travel to London Gatwick Airport from Washington, D.C. Dulles Intl Airport. Flying in the targeted month can save you up to 29%.

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

A simple way to save on the total cost of your ticket is to fly from Washington, D.C. Dulles Intl Airport to London Gatwick Airport in the afternoon. If you’re flexible enough to do this you can expect to save up to 11% on your trip compared to booking a flight in the morning.

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

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

How can I find direct flights from Dulles Intl to Gatwick?

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

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

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

$272+ Flights from Washington, D.C. Dulles Intl Airport to London Gatwick Airport

Q: How far in advance should I book a flight from Washington, D.C. Dulles Intl Airport to London Gatwick 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 Gatwick Airport 1-2 weeks in advance for as low as $802, or $925 for flights within the next 24 hours.

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Cheap flight deals from Dulles Intl to Gatwick

Round-trip from	$589 (Booking.com)
One-way from	$272 (Icelandair)
Popular in	December
Cheapest in	November
Average price	$1,003

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

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

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High demand for flights, 2% potential price rise

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Cheapest flight prices on average. 5% potential price decrease ($37 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 Gatwick

Cheapest flights from Dulles Intl to Gatwick
Explore the most affordable flight options available from Dulles Intl to Gatwick. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 26, 2025.

Wed 8/611:15 pmIAD - LGW

1 stop10h 25mIcelandair

Tue 8/121:00 pmLGW - IAD

1 stop11h 20mIcelandair

Deal found 6/26

$586

Thu 9/1110:20 pmIAD - LGW

2 stops17h 05mTAP AIR PORTUGAL

Sun 9/1410:35 amLGW - IAD

1 stop33h 45mTAP AIR PORTUGAL

Deal found 6/26

$587

Wed 7/168:45 pmIAD - LGW

1 stop16h 10mSWISS

Wed 7/236:35 pmLGW - IAD

1 stop26h 40mSWISS

Deal found 6/25

$590

Thu 7/101:36 pmIAD - LGW

1 stop15h 24mMultiple Airlines

Sat 8/3010:00 amLGW - IAD

1 stop14h 24mMultiple Airlines

Deal found 6/26

$594

Mon 8/1812:39 pmIAD - LGW

2 stops16h 21mVirgin Atlantic

Tue 8/2612:00 pmLGW - IAD

1 stop12h 43mVirgin Atlantic

Deal found 6/24

$603

Sun 7/134:35 pmIAD - LGW

1 stop13h 15mIberia

Tue 8/268:40 pmLGW - IAD

1 stop23h 20mIberia

Deal found 6/26

$606

Wed 7/2312:12 pmIAD - LGW

1 stop16h 48mKLM

Thu 7/3112:00 pmLGW - IAD

1 stop12h 51mKLM

Deal found 6/26

$655

Thu 8/144:30 pmIAD - LGW

1 stop13h 45mITA Airways

Mon 8/2512:05 pmLGW - IAD

1 stop31h 35mITA Airways

Deal found 6/24

$663

Best flights from Dulles Intl to Gatwick
Discover carefully curated flight deals from Dulles Intl to Gatwick that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 26, 2025.

Sun 8/1711:15 pmIAD - LGW

1 stop10h 25mIcelandair

Sat 8/231:00 pmLGW - IAD

1 stop11h 20mIcelandair

Deal found 6/26

$589

Wed 7/168:45 pmIAD - LGW

1 stop16h 10mSWISS

Wed 7/236:35 pmLGW - IAD

1 stop26h 40mSWISS

Deal found 6/25

$590

Sun 9/215:45 pmIAD - LGW

2 stops22h 10mMultiple Airlines

Fri 9/265:40 pmLGW - IAD

2 stops26h 40mMultiple Airlines

Deal found 6/25

$592

Mon 9/110:20 pmIAD - LGW

1 stop12h 15mTAP AIR PORTUGAL

Tue 10/144:25 pmLGW - IAD

1 stop27h 55mTAP AIR PORTUGAL

Deal found 6/25

$593

Mon 8/186:00 amIAD - LGW

2 stops23h 00mVirgin Atlantic

Tue 8/2612:00 pmLGW - IAD

1 stop12h 43mVirgin Atlantic

Deal found 6/25

$603

Tue 7/294:35 pmIAD - LGW

1 stop22h 25mIberia

Sun 8/311:35 amLGW - IAD

1 stop32h 25mIberia

Deal found 6/25

$616

Sat 8/1612:39 pmIAD - LGW

2 stops16h 21mDelta

Wed 9/312:00 pmLGW - IAD

2 stops16h 21mDelta

Deal found 6/24

$663

Thu 7/317:50 pmIAD - LGW

2 stops33h 10mKLM

Sun 8/3112:00 pmLGW - IAD

2 stops35h 48mKLM

Deal found 6/24

$712

Sat 7/198:31 pmIAD - LGW

2 stops33h 44mITA Airways

Sun 8/3112:05 pmLGW - IAD

1 stop31h 35mITA Airways

Deal found 6/24

$730

Thu 8/141:30 pmIAD - LGW

1 stop15h 25mTurkish Airlines

Sat 10/185:15 pmLGW - IAD

1 stop23h 30mTurkish Airlines

Deal found 6/25

$744

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

Thu 7/31:30 pmIAD - LGW

1 stop15h 25mTurkish Airlines

Mon 7/75:15 pmLGW - IAD

1 stop23h 30mTurkish Airlines

Deal found 6/26

$1,094

Fri 7/412:13 pmIAD - LGW

1 stop16h 47mVirgin Atlantic

Tue 7/2212:00 pmLGW - IAD

1 stop12h 51mVirgin Atlantic

Deal found 6/25

$758

Sat 7/51:36 pmIAD - LGW

1 stop15h 24mMultiple Airlines

Tue 7/811:35 amLGW - IAD

2 stops32h 21mMultiple Airlines

Deal found 6/26

$808

Sun 7/611:15 pmIAD - LGW

1 stop10h 25mIcelandair

Wed 8/63:40 pmLGW - IAD

1 stop11h 30mIcelandair

Deal found 6/25

$779

Sun 7/64:30 pmIAD - LGW

1 stop13h 45mITA Airways

Sun 7/1312:05 pmLGW - IAD

1 stop31h 35mITA Airways

Deal found 6/26

$914

Sun 7/69:05 pmIAD - LGW

1 stop13h 35mRoyal Air Maroc

Tue 7/84:40 pmLGW - IAD

1 stop31h 25mRoyal Air Maroc

Deal found 6/26

$1,064

Thu 7/101:36 pmIAD - LGW

1 stop15h 24mMultiple Airlines

Sat 8/3010:00 amLGW - IAD

1 stop14h 24mMultiple Airlines

Deal found 6/26

$594

Thu 7/104:35 pmIAD - LGW

1 stop13h 15mIberia

Tue 8/268:40 pmLGW - IAD

1 stop23h 20mIberia

Deal found 6/26

$599

Sat 7/1212:12 pmIAD - LGW

1 stop16h 48mVirgin Atlantic

Tue 7/2212:00 pmLGW - IAD

1 stop12h 51mVirgin Atlantic

Deal found 6/24

$614

Tue 7/154:35 pmIAD - LGW

1 stop13h 15mBritish Airways

Mon 7/218:40 pmLGW - IAD

1 stop23h 20mBritish Airways

Deal found 6/25

$771

Wed 7/168:45 pmIAD - LGW

1 stop16h 10mSWISS

Wed 7/236:35 pmLGW - IAD

1 stop26h 40mSWISS

Deal found 6/25

$590

Wed 7/165:50 pmIAD - LGW

2 stops21h 40mTAP AIR PORTUGAL

Mon 10/64:25 pmLGW - IAD

1 stop27h 55mTAP AIR PORTUGAL

Deal found 6/25

$601

One-way flights from Dulles Intl to Gatwick
Search for one-way flight options from Dulles Intl to Gatwick. Find affordable one-way fares based on user searches. Data last updated June 26, 2025.

Mon 9/18:30 pmIAD - LGW

1 stop10h 15mIcelandair

Deal found 6/25

$272

Sun 7/2011:15 pmIAD - LGW

2 stops40h 00mMultiple Airlines

Deal found 6/25

$274

Sun 8/1010:20 pmIAD - LGW

1 stop30h 25mTAP AIR PORTUGAL

Deal found 6/25

$275

Tue 7/154:10 pmIAD - LGW

2 stops12h 40mPorter Airlines

Deal found 6/24

$401

Tue 9/212:20 pmIAD - LGW

2 stops16h 40mDelta

Deal found 6/25

$419

Fri 7/254:30 pmIAD - LGW

1 stop13h 45mITA Airways

Deal found 6/23

$424

Thu 7/3111:35 amIAD - LGW

2 stops17h 15mAir Transat

Deal found 6/25

$427

Thu 8/78:45 pmIAD - LGW

1 stop16h 05mSWISS

Deal found 6/25

$454

Tue 7/812:45 pmIAD - LGW

2 stops16h 15mVirgin Atlantic

Deal found 6/24

$464

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

Wed 8/6

11:15 pm-2:40 pm

1 stop10h 25m

London Gatwick

Tue 8/12

1:00 pm-7:20 pm

1 stop11h 20m

$586

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

Thu 9/11

10:20 pm-8:25 pm

2 stops17h 05m

London Gatwick

Sun 9/14

10:35 am-3:20 pm

1 stop33h 45m

$587

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

Wed 7/16

8:45 pm-5:55 pm

1 stop16h 10m

London Gatwick

Wed 7/23

6:35 pm-4:15 pm

1 stop26h 40m

$590

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

Thu 7/10

1:36 pm-10:00 am

1 stop15h 24m

London Gatwick

Sat 8/30

10:00 am-7:24 pm

1 stop14h 24m

$594

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

Mon 8/18

12:39 pm-10:00 am

2 stops16h 21m

London Gatwick

Tue 8/26

12:00 pm-7:43 pm

1 stop12h 43m

$603

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

Sun 7/13

4:35 pm-10:50 am

1 stop13h 15m

London Gatwick

Tue 8/26

8:40 pm-3:00 pm

1 stop23h 20m

$606

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

Wed 7/23

12:12 pm-10:00 am

1 stop16h 48m

London Gatwick

Thu 7/31

12:00 pm-7:51 pm

1 stop12h 51m

$655

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

Thu 8/14

4:30 pm-11:15 am

1 stop13h 45m

London Gatwick

Mon 8/25

12:05 pm-2:40 pm

1 stop31h 35m

$663

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

Mon 9/1

8:30 pm-11:45 am

1 stop10h 15m

$272

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

Sun 7/20

11:15 pm-8:15 pm

2 stops40h 00m

$274

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/25

Showing 1-10 of 17 results

Best time to book a flight from Dulles Intl to Gatwick

Have a flexible travel schedule? Discover the best time to fly to Gatwick 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 Gatwick Airport

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

Currently, January is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to London Gatwick Airport (average of $569). Flying from Washington, D.C. Dulles Intl Airport to London Gatwick Airport in June is currently the most expensive (average of $765). 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.

Reviews of airlines servicing Gatwick

Peruse reviews from past customers who have flown with Porter Airlines, Delta, and KLM from Washington, D.C. Dulles Intl Airport to London Gatwick Airport to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Porter Airlines

8.0

Very good

293 reviews

Reviews

1 / 20

4.0

Okay

Mary,Jun 2025

FLL - YYZ

Fort Lauderdale staff was not helpful at all to try to accommodate my husband and myself to sit together. Also very surprised to get charged USD53 for each of our checked luggage, as when we booked the tickets online, the website indicated that our first checked luggage will be charged CAD50!! Very misleading!!!

Porter Airlines

8.0

Very good

293 reviews

Porter Airlines

8.0

Very good

293 reviews

Reviews

1 / 20

4.0

Okay

Mary,Jun 2025

FLL - YYZ

Delta

8.0

Very good

7,964 reviews

Porter Airlines

8.0

Very good

293 reviews

Reviews

1 / 20

4.0

Okay

Mary,Jun 2025

FLL - YYZ

KLM

7.8

Good

1,365 reviews

Porter Airlines

8.0

Very good

293 reviews

Reviews

1 / 20

4.0

Okay

Mary,Jun 2025

FLL - YYZ

Air Transat

7.8

Good

401 reviews

Porter Airlines

8.0

Very good

293 reviews

Reviews

1 / 20

4.0

Okay

Mary,Jun 2025

FLL - YYZ

SWISS

7.5

Good

1,649 reviews

Porter Airlines

8.0

Very good

293 reviews

Reviews

1 / 20

4.0

Okay

Mary,Jun 2025

FLL - YYZ

Related info for your journey

What are the cheapest airlines flying from Washington, D.C. Dulles Intl Airport to London Gatwick Airport round-trip?
Our cheapest airline available from Washington, D.C. Dulles Intl Airport to London Gatwick Airport is Icelandair. Our recent data shows that you can find tickets from as low as $589 on this airline. Additional options worth looking into are SWISS and TAP AIR PORTUGAL, starting at $590 and $593 round-trip. These flights start at 19% lower than the current average price 3 months from now.
What are the cheapest airlines to fly from Washington, D.C. Dulles Intl Airport to London Gatwick Airport one-way?
For one-way options, check prices for Icelandair. According to our data, you can fly for as low as $272. Users have also found prices from $275 and $401 on TAP AIR PORTUGAL and Porter Airlines, respectively.
Can I find deals for flights from Dulles Intl to Gatwick that include hotel bookings?
Yes. In addition to deals on Dulles Intl to Gatwick flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Dulles Intl to Gatwick?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Dulles Intl to Gatwick.
Can I find deals for business class flights from Dulles Intl to Gatwick?
Yes. Cheapflights offers flight deals from Dulles Intl to Gatwick 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 Gatwick Airport?
Currently, January is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to London Gatwick Airport (average of $569). Flying from Washington, D.C. Dulles Intl Airport to London Gatwick Airport in June is currently the most expensive (average of $765). 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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Canterbury

Harrow

Dover

Gatwick

Orpington

Watford

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Folkestone

Borehamwood

Aylesbury

Chelmsford

Brentwood

Chichester

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Bishop's Stortford

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Top airline flying from Dulles Intl to Gatwick

Airline	Cheapest	Average	Flexibility	On-time
Icelandair	Cheapest$481	Average$681	FlexibilityNo cancel fee	On-time76%

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$272+ Cheap flights from Dulles Intl (IAD) to Gatwick (LGW)

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 9/1. Fares are subject to change and may not be available on all flights or dates of travel.

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Find flight deals from Dulles Intl to Gatwick

Cheapest flights from Dulles Intl to GatwickExplore the most affordable flight options available from Dulles Intl to Gatwick. 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 Gatwick. 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 Gatwick Airport that are best for you.

Best time to book a flight from Dulles Intl to Gatwick

Have a flexible travel schedule? Discover the best time to fly to Gatwick 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 Gatwick Airport

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

Reviews of airlines servicing Gatwick

Related info for your journey

Find useful and relevant information for your journey from Dulles Intl to Gatwick. 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 Gatwick Airport round-trip?

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

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

How can I find direct flights from Dulles Intl to Gatwick?

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

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

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Top airline flying from Dulles Intl to Gatwick

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Cheapest flights from Dulles Intl to Gatwick
Explore the most affordable flight options available from Dulles Intl to Gatwick. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 26, 2025.