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$237+ Cheap flights from Dulles Intl (IAD) to the United Kingdom

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 1/15. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — LHR
Dec 23 — Dec 301
Mon 12/23
Mon 12/30
1 adult, Economy
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Cheap flight deals from Dulles Intl to United Kingdom

Discover tips and strategies to find the most affordable flight options for your journey from Dulles Intl (IAD) to United Kingdom (GB0). 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 December 18, 2024.

Round-trip from

$523
(oojo)

One-way from

$238
(Mytrip)
From Washington, D.C. Dulles Intl to United Kingdom
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One-way flight from Washington, D.C. Dulles Intl to United Kingdom
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Find flight deals from Dulles Intl to United Kingdom

Cheapest flights from Dulles Intl to United Kingdom
Explore the most affordable flight options available from Dulles Intl to United Kingdom. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 18, 2024.

This oojo deal was found by Cheapflights users on 12/18. 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.
Mon 12/307:40 pmIAD - LGW
1 stop10h 15mIcelandair
Mon 1/1311:55 amLGW - IAD
1 stop11h 30mIcelandair
Deal found 12/18$593
This Cheapflightsfares deal was found by Cheapflights users on 12/18. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/305:50 pmIAD - MAN
1 stop13h 05mMultiple Airlines
Thu 1/168:55 amMAN - IAD
1 stop12h 30mMultiple Airlines
Deal found 12/18$625
This Delta deal was found by Cheapflights users on 12/17. 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.
Tue 12/316:25 pmIAD - LHR
Nonstop7h 30mDelta
Tue 1/218:40 amLHR - IAD
1 stop12h 05mDelta
Deal found 12/17$639
This Kiwi.com deal was found by Cheapflights users on 12/17. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/305:50 pmIAD - LHR
1 stop13h 55mLufthansa
Tue 1/218:30 amLHR - IAD
1 stop12h 20mLufthansa
Deal found 12/17$641
This United Airlines deal was found by Cheapflights users on 12/18. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/305:50 pmIAD - MAN
1 stop18h 15mUnited Airlines
Thu 1/1612:45 pmMAN - IAD
2 stops26h 01mUnited Airlines
Deal found 12/18$647
This Kiwi.com deal was found by Cheapflights users on 12/17. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/305:50 pmIAD - LHR
1 stop13h 55mMultiple Airlines
Mon 1/207:25 pmLHR - IAD
1 stop24h 10mMultiple Airlines
Deal found 12/17$655
This Expedia deal was found by Cheapflights users on 12/17. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/297:40 pmIAD - LHR
1 stop10h 10mIcelandair
Wed 1/2212:15 pmLHR - IAD
1 stop11h 10mIcelandair
Deal found 12/17$658
This Kiwi.com deal was found by Cheapflights users on 12/17. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/296:00 pmIAD - LHR
1 stop33h 20mAustrian Airlines
Fri 1/246:00 amLHR - IAD
1 stop13h 35mAustrian Airlines
Deal found 12/17$669
This Virgin Atlantic deal was found by Cheapflights users on 12/18. 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 Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/2512:59 pmIAD - MAN
2 stops15h 41mVirgin Atlantic
Wed 1/1510:05 amMAN - IAD
2 stops19h 17mVirgin Atlantic
Deal found 12/18$669
This Scandinavian Airlines deal was found by Cheapflights users on 12/18. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/305:10 pmIAD - LHR
1 stop11h 10mScandinavian Airlines
Sun 1/127:30 pmLHR - IAD
1 stop25h 10mScandinavian Airlines
Deal found 12/18$684
This Delta deal was found by Cheapflights users on 12/17. 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.
Tue 12/315:35 pmIAD - LCY
1 stop10h 55mDelta
Tue 1/2110:00 amLCY - IAD
1 stop10h 45mDelta
Deal found 12/17$692
This United Airlines deal was found by Cheapflights users on 12/17. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/315:37 pmIAD - LHR
1 stop9h 48mUnited Airlines
Wed 1/84:20 pmLHR - IAD
Nonstop8h 55mUnited Airlines
Deal found 12/17$699

Find flights from Dulles Intl to United Kingdom within your budget

Customize your flight search to find flights from Dulles Intl to United Kingdom 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 December 18, 2024.

Fly from

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Route

Depart

Return

Price

Washington, D.C.Glasgow

IAD - GLA

IADGLA

Washington, D.C. Dulles Intl

Sun 1/26

7:40 pm-9:55 am

1 stop9h 15m

Glasgow Intl

Tue 2/4

12:35 pm-6:25 pm

1 stop10h 50m

$520

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

Mon 1/20

7:15 pm-7:45 pm

2 stops19h 30m

London Gatwick

Mon 1/27

8:35 am-2:30 pm

2 stops34h 55m

$536

Washington, D.C.London

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

Wed 2/19

10:30 pm-3:30 pm

1 stop12h 00m

London Heathrow

Mon 2/24

6:30 pm-2:30 pm

1 stop25h 00m

$536

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

Wed 2/19

7:40 pm-10:55 am

1 stop10h 15m

London Gatwick

Mon 2/24

11:55 am-6:25 pm

1 stop11h 30m

$537

Washington, D.C.London

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

Tue 4/29

8:30 pm-11:55 am

1 stop10h 25m

London Heathrow

Wed 5/7

1:05 pm-7:15 pm

1 stop11h 10m

$537

Washington, D.C.London

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

Sun 3/9

6:10 pm-5:40 pm

1 stop19h 30m

London Heathrow

Sun 3/16

7:30 pm-4:40 pm

1 stop25h 10m

$538

Washington, D.C.London

IAD - STN

IADSTN

Washington, D.C. Dulles Intl

Mon 2/3

5:10 pm-7:55 pm

2 stops21h 45m

London Stansted

Sun 2/9

3:50 pm-3:40 pm

2 stops28h 50m

$538

Washington, D.C.Manchester

IAD - MAN

IADMAN

Washington, D.C. Dulles Intl

Wed 2/5

10:30 pm-4:15 pm

1 stop12h 45m

Manchester

Wed 2/19

11:25 am-9:00 pm

1 stop14h 35m

$542

Washington, D.C.Manchester

IAD - MAN

IADMAN

Washington, D.C. Dulles Intl

Thu 1/30

5:30 pm-4:00 pm

2 stops17h 30m

Manchester

Wed 2/5

9:35 am-9:00 pm

2 stops16h 25m

$543

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

Wed 2/5

10:30 pm-3:05 pm

1 stop11h 35m

London Gatwick

Wed 2/12

4:35 pm-3:00 pm

1 stop27h 25m

$545

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/18

Showing 1-10 of 60 results
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Best time to book a flight from Dulles Intl to United Kingdom

Have a flexible travel schedule? Discover the best time to fly to United Kingdom 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.

Travel insights for flights from Dulles Intl to United Kingdom

Get recent, data-driven insights about flights from Dulles Intl to United Kingdom including ideal travel times, pricing trends, and more.

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

Currently, November is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to United Kingdom (average of $661). Flying from Washington, D.C. Dulles Intl Airport to United Kingdom in June is currently the most expensive (average of $1,135). 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 time of day to fly from IAD to GB?

Find hourly flight availability from Dulles Intl to United Kingdom. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 18, 2024.

When flying from Washington, D.C. Dulles Intl Airport to United Kingdom, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from Washington, D.C. Dulles Intl Airport to United Kingdom

Explore weekly flight availability from Dulles Intl to United Kingdom. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated December 18, 2024.

The most flights from IAD to GB0 are scheduled on a Tuesday (27 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (17 on average).

Rainfall in United Kingdom by month

Plan your trip to United Kingdom by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in United Kingdom 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 United Kingdom when rainfall is around 1.6 in.

Temperature in United Kingdom by month

Plan your trip to United Kingdom by taking into account the average temperature totals by month.

If weather is an important factor for your trip to United Kingdom, 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 United Kingdom

Get insights into the airlines that provide service to United Kingdom. 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 United Kingdom. Reviews last updated December 18, 2024.
See what other customers who have flown with KLM, Virgin Atlantic and Delta from Washington, D.C. to United Kingdom 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
8,604 reviews

Crew

8.6

Food

7.3

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Overall

8.0

Reviews

1 / 10

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

Delta
8.0
Very good
8,604 reviews
Delta
8.0
Very good
8,604 reviews

Crew

8.6

Food

7.3

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Overall

8.0

Reviews

1 / 10

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

KLM
7.8
Good
1,349 reviews
Delta
8.0
Very good
8,604 reviews

Crew

8.6

Food

7.3

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Overall

8.0

Reviews

1 / 10

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

Finnair
7.7
Good
1,285 reviews
Delta
8.0
Very good
8,604 reviews

Crew

8.6

Food

7.3

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Overall

8.0

Reviews

1 / 10

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

Austrian Airlines
7.6
Good
787 reviews
Delta
8.0
Very good
8,604 reviews

Crew

8.6

Food

7.3

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Overall

8.0

Reviews

1 / 10

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

SWISS
7.6
Good
1,606 reviews
Delta
8.0
Very good
8,604 reviews

Crew

8.6

Food

7.3

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Overall

8.0

Reviews

1 / 10

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

Related info for your journey

Find useful and relevant information for your journey from Dulles Intl to United Kingdom. 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 to fly from Washington, D.C. Dulles Intl Airport to United Kingdom one-way?

    One-way options have recently been found by users for as low as $238 on Icelandair. Other airlines that offer cheap prices include TAP AIR PORTUGAL from $299 and Scandinavian Airlines from $367 one-way.

  • What are the most popular routes from Washington, D.C. Dulles Intl Airport to United Kingdom?

    Most travelers choose Washington, D.C. Dulles Intl - London Heathrow, Washington, D.C. Dulles Intl - London Gatwick or Washington, D.C. Dulles Intl - London City when deciding on the best route from Washington, D.C. Dulles Intl Airport to United Kingdom.

  • What are the most reliable airlines from Washington, D.C. Dulles Intl Airport to United Kingdom?

    Before booking your flight to United Kingdom from Washington, D.C. Dulles Intl Airport, check out the most reliable airlines to get you to your destination on time: Virgin Atlantic (86%), Singapore Airlines (86%), Air France( 84%).

  • What are the cheapest flights from Washington, D.C. Dulles Intl Airport to United Kingdom?

    The cheapest flight price from Washington, D.C. Dulles Intl Airport to United Kingdom is $393. On average you can expect to pay $1,621. The most popular route, (Washington, D.C. Dulles Intl - London Heathrow), can usually be booked for $459.

  • Can I find deals for flights from Dulles Intl to United Kingdom that include hotel bookings?

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

  • How can I find direct flights from Dulles Intl to United Kingdom?

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

  • Can I find deals for business class flights from Dulles Intl to United Kingdom?

    Yes. Cheapflights offers flight deals from Dulles Intl to United Kingdom 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 United Kingdom?

    Currently, November is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to United Kingdom (average of $661). Flying from Washington, D.C. Dulles Intl Airport to United Kingdom in June is currently the most expensive (average of $1,135). 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.

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Alternative routes for Dulles Intl to United Kingdom

See prices for flight routes from nearby airports that may be better suited for you.
Dulles Intl to Heathrow flights
Dulles Intl to Charles de Gaulle flights
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Reagan-National to Charles de Gaulle flights
Baltimore to Charles de Gaulle flights
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Dulles Intl to Barcelona-El Prat flights
Baltimore to Leonardo da Vinci/Fiumicino flights
Reagan-National to Leonardo da Vinci/Fiumicino flights
Dulles Intl to Amsterdam flights
Dulles Intl to Keflavik Intl flights
Reagan-National to Istanbul flights
Baltimore to Istanbul flights
Reagan-National to Madrid flights
Baltimore to Madrid flights
Baltimore to Keflavik Intl flights
Reagan-National to Lisbon flights
Baltimore to Lisbon flights
Dulles Intl to Bruxelles-National flights
Dulles Intl to Zurich flights
Baltimore to Dublin flights
Reagan-National to Dublin flights
Reagan-National to Athens flights
Reagan-National to Frankfurt flights
Reagan-National to Keflavik Intl flights
Baltimore to Athens flights
Baltimore to Frankfurt flights
Dulles Intl to Sabiha Gokcen flights
Dulles Intl to Munich flights
Reagan-National to Barcelona-El Prat flights
Dulles Intl to Malpensa flights
Dulles Intl to Copenhagen flights
Baltimore to Barcelona-El Prat flights
Dulles Intl to Geneva flights
Dulles Intl to Vicenza flights
Dulles Intl to Edinburgh flights

Top 10 airlines flying from Dulles Intl to United Kingdom

Discover the top 10 airlines that operate flights from Dulles Intl to United Kingdom. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 18, 2024.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest$354Average$839FlexibilityNo cancel feeOn-time75%
PLAYCheapest$366Average$482FlexibilityNo cancel feeOn-timeN/A
Scandinavian AirlinesCheapest$370Average$658FlexibilityNo cancel feeOn-time77%
TAP AIR PORTUGALCheapest$398Average$646FlexibilityNo cancel feeOn-timeN/A
Aer LingusCheapest$459Average$777FlexibilityNo cancel feeOn-timeN/A
IcelandairCheapest$480Average$711FlexibilityNo cancel feeOn-time76%
Virgin AtlanticCheapest$533Average$844FlexibilityNo cancel feeOn-time72%
FinnairCheapest$551Average$703FlexibilityNo cancel feeOn-time76%
American AirlinesCheapest$558Average$750FlexibilityNo cancel feeOn-time71%
SWISSCheapest$572Average$788FlexibilityNo cancel feeOn-time79%
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