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Cheap flights from Washington to London Heathrow Airport from £218

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 11/3. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — LHR
14 Jan — 21 Jan1
1 adult

Cheap flight deals from Washington to Heathrow

Discover tips and strategies to find the most affordable flight options for your journey from Washington (USWA) to Heathrow (LHR). 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 9 January 2025.

Round-trip from

£481

One-way from

£218
Virgin Atlantic
  • Virgin Atlantic
  • 3/2-18/2
  • 1 total stop
  • 22h 25m total
  • Washington to London
11/3
  • 11/3
  • 2 total stops
  • 22h 34m total
  • Washington to London

Find flight deals from Washington to Heathrow

Cheapest flights from Washington to Heathrow
Explore the most affordable flight options available from Washington to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 9 January 2025.

Mon 3/217:45SEA - LHR
Nonstop9h 25mVirgin Atlantic
Tue 18/206:20LHR - SEA
1 stop13h 00mVirgin Atlantic
Deal found 8/1£481
Tue 21/113:35SEA - LHR
Nonstop9h 25mIberia
Tue 28/115:00LHR - SEA
Nonstop9h 55mIberia
Deal found 8/1£482
Wed 24/916:20SEA - LHR
1 stop15h 40mScandinavian Airlines
Wed 8/1006:40LHR - SEA
1 stop15h 20mScandinavian Airlines
Deal found 8/1£484
Fri 31/114:35SEA - LHR
1 stop12h 15mIcelandair
Mon 3/212:15LHR - SEA
1 stop12h 45mIcelandair
Deal found 8/1£487
Tue 8/411:30SEA - LHR
2 stops17h 20mMultiple Airlines
Sun 27/408:50LHR - SEA
2 stops19h 38mMultiple Airlines
Deal found 8/1£489
Tue 4/205:45SEA - LHR
2 stops17h 25mAir Canada
Tue 11/213:25LHR - SEA
2 stops16h 42mAir Canada
Deal found 7/1£492
Mon 3/217:45SEA - LHR
Nonstop9h 25mDelta
Thu 13/206:30LHR - SEA
1 stop13h 16mDelta
Deal found 7/1£496
Wed 22/109:45SEA - LHR
1 stop15h 55mBritish Airways
Tue 4/208:10LHR - SEA
2 stops21h 11mBritish Airways
Deal found 7/1£498
Sun 26/118:50SEA - LHR
Nonstop9h 25mFinnair
Tue 11/215:00LHR - SEA
Nonstop9h 55mFinnair
Deal found 8/1£500
Wed 5/210:35SEA - LHR
1 stop15h 35mUnited Airlines
Fri 14/207:40LHR - SEA
1 stop13h 40mUnited Airlines
Deal found 7/1£519
Mon 24/210:35SEA - LHR
1 stop15h 35mLufthansa
Tue 11/306:35LHR - SEA
1 stop14h 45mLufthansa
Deal found 8/1£520
Tue 1/410:10PDX - LHR
2 stops17h 40mLufthansa
Mon 14/419:10LHR - PDX
2 stops37h 20mLufthansa
Deal found 7/1£533

Find flights from Washington to Heathrow within your budget

Customise your flight search to find flights from Washington to Heathrow 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 858,174 searches. Data last updated 9 January 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

SeattleLondon

SEA - LHR

SEALHR

Seattle/Tacoma Intl

Mon 3/2

17:45-11:10

Nonstop9h 25m

London Heathrow

Tue 18/2

06:20-11:20

1 stop13h 00m

£481

SeattleLondon

SEA - LHR

SEALHR

Seattle/Tacoma Intl

Tue 21/1

13:35-07:00

Nonstop9h 25m

London Heathrow

Tue 28/1

15:00-16:55

Nonstop9h 55m

£482

SeattleLondon

SEA - LHR

SEALHR

Seattle/Tacoma Intl

Fri 31/1

14:35-10:50

1 stop12h 15m

London Heathrow

Tue 4/2

12:15-17:00

1 stop12h 45m

£487

SeattleLondon

SEA - LHR

SEALHR

Seattle/Tacoma Intl

Tue 8/4

11:30-12:50

2 stops17h 20m

London Heathrow

Sun 27/4

08:50-20:28

2 stops19h 38m

£489

SeattleLondon

SEA - LHR

SEALHR

Seattle/Tacoma Intl

Sun 26/1

05:45-09:20

2 stops19h 35m

London Heathrow

Tue 11/2

13:25-22:07

2 stops16h 42m

£491

SeattleLondon

SEA - LHR

SEALHR

Seattle/Tacoma Intl

Mon 3/2

17:45-11:10

Nonstop9h 25m

London Heathrow

Tue 11/2

06:30-11:46

1 stop13h 16m

£496

SeattleLondon

SEA - LHR

SEALHR

Seattle/Tacoma Intl

Wed 22/1

09:45-09:40

1 stop15h 55m

London Heathrow

Tue 4/2

08:10-21:21

2 stops21h 11m

£498

SeattleLondon

SEA - LHR

SEALHR

Seattle/Tacoma Intl

Sun 26/1

18:50-12:15

Nonstop9h 25m

London Heathrow

Tue 11/2

09:25-11:20

Nonstop9h 55m

£500

SeattleLondon

SEA - LHR

SEALHR

Seattle/Tacoma Intl

Tue 8/4

05:45-13:20

1 stop23h 35m

London Heathrow

Wed 14/5

06:30-14:13

2 stops15h 43m

£512

SeattleLondon

SEA - LHR

SEALHR

Seattle/Tacoma Intl

Mon 24/2

10:35-09:20

2 stops14h 45m

London Heathrow

Tue 11/3

06:35-14:20

1 stop14h 45m

£520

Flights are sorted by cheapest return flights first.

Deals found on 7/1

Showing 1-10 of 60 results
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Best time to book a flight from Washington to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Washington with our price prediction graph.
Estimated return 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 Washington to Heathrow

Get recent, data-driven insights about flights from Washington to Heathrow including ideal travel times, pricing trends, and more.

What is the cheapest month to book a flight from State of Washington to London Heathrow Airport?

Currently, January is the cheapest month in which you can book a flight from State of Washington to London Heathrow Airport (average of £112). Flying from State of Washington to London Heathrow Airport in July is currently the most expensive (average of £160). 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 WA to LHR?

Find hourly flight availability from Washington to Heathrow. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 9 January 2025.

When flying from State of Washington to London Heathrow Airport, 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 State of Washington to London Heathrow Airport

Explore weekly flight availability from Washington to Heathrow. 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 9 January 2025.

The most flights from USWA to LHR are scheduled on a Tuesday (17 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (11 on average).

Rainfall in Heathrow by month

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

In terms of precipitation, rainfall in London Heathrow Airport ranges from 40.0 - 70.0 inches per month. January is typically the wettest month, when rainfall can reach 70.0 mm. July is typically the driest time to visit London Heathrow Airport when rainfall is around 40.0 mm.

Temperature in Heathrow by month

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

If weather is an important factor for your trip to London Heathrow 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 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 4.0 C).

Reviews of airlines servicing Heathrow

Get insights into the airlines that provide service to Heathrow. 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 Heathrow. Reviews last updated 9 January 2025.
Read reviews from past customers who have flown Virgin Atlantic, Iberia and Icelandair from Washington to London. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
8.0
Very Good
8,499 reviews

Entertainment

7.9

Overall

8.0

Crew

8.6

Boarding

8.2

Comfort

8.0

Food

7.3

Reviews

1 / 10

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

8.0
Very Good
8,499 reviews
8.0
Very Good
8,499 reviews

Entertainment

7.9

Overall

8.0

Crew

8.6

Boarding

8.2

Comfort

8.0

Food

7.3

Reviews

1 / 10

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

8.0
Very Good
9,634 reviews
8.0
Very Good
8,499 reviews

Entertainment

7.9

Overall

8.0

Crew

8.6

Boarding

8.2

Comfort

8.0

Food

7.3

Reviews

1 / 10

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

7.8
Good
1,337 reviews
8.0
Very Good
8,499 reviews

Entertainment

7.9

Overall

8.0

Crew

8.6

Boarding

8.2

Comfort

8.0

Food

7.3

Reviews

1 / 10

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

7.7
Good
1,281 reviews
8.0
Very Good
8,499 reviews

Entertainment

7.9

Overall

8.0

Crew

8.6

Boarding

8.2

Comfort

8.0

Food

7.3

Reviews

1 / 10

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

7.5
Good
1,592 reviews
8.0
Very Good
8,499 reviews

Entertainment

7.9

Overall

8.0

Crew

8.6

Boarding

8.2

Comfort

8.0

Food

7.3

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 Washington to Heathrow. 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 State of Washington to London Heathrow Airport one-way?

    One-way options have recently been found by users for as low as £226 on Icelandair. Other airlines that offer cheap prices include WestJet from £228 and British Airways from £305 one-way.

  • What are the most popular routes from State of Washington to London Heathrow Airport?

  • What are the most reliable airlines from State of Washington to London Heathrow Airport?

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from State of Washington to London Heathrow Airport on time: American Airlines (85%), Alaska Airlines (85%), Aer Lingus (85%).

  • What are the cheapest flights from State of Washington to London Heathrow Airport?

    The cheapest flight price from State of Washington to London Heathrow Airport is £278. On average you can expect to pay £516. The most popular route, (Seattle/Tacoma Intl - London Heathrow), can usually be booked for £432.

  • Can I find deals for flights from Washington to Heathrow that include hotel bookings?

    Yes. In addition to deals on Washington to Heathrow flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Washington to Heathrow?

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

  • Can I find deals for business class flights from Washington to Heathrow?

    Yes. Cheapflights offers flight deals from Washington to Heathrow 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 State of Washington to London Heathrow Airport?

    Currently, January is the cheapest month in which you can book a flight from State of Washington to London Heathrow Airport (average of £112). Flying from State of Washington to London Heathrow Airport in July is currently the most expensive (average of £160). 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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Alternative routes for Washington to Heathrow

See prices for flight routes from nearby airports that may be better suited for you.

Top 4 airlines flying from Washington to Heathrow

Discover the top 4 airlines that operate flights from Washington to Heathrow. 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 858,174 searches. Data last updated 9 January 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest£390Average£472FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
Aer LingusCheapest£465Average£553FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
Virgin AtlanticCheapest£484Average£692FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
British AirwaysCheapest£498Average£869FlexibilityNo cancel feeOn-time70%
Search British Airways flights

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How does Cheapflights help users find flights from Washington to Heathrow?

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Why should you use Cheapflights to find cheap flight tickets from Washington to Heathrow?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Heathrow from Washington.

Can Cheapflights find flights from Washington to Heathrow with no change fees?

Need flexible booking options for your flight to Heathrow from Washington? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

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Of course! You can now track prices for flights from Washington to Heathrow and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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