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Cheap flights from Washington to London Heathrow Airport from £169

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 14/1. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — LHR
20 Nov — 27 Nov1
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 15 November 2024.

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 15 November 2024.

Tue 3/1214:35PDX - LHR
1 stop20h 55mIcelandair
Tue 10/1220:40LHR - PDX
1 stop28h 10mIcelandair
Deal found 13/11£467
Mon 18/1114:35SEA - LHR
1 stop20h 55mIcelandair
Thu 28/1112:15LHR - SEA
1 stop12h 45mIcelandair
Deal found 14/11£473
Tue 3/1214:35PDX - LHR
2 stops22h 25mMultiple Airlines
Wed 11/1207:50LHR - PDX
2 stops17h 00mMultiple Airlines
Deal found 15/11£475
Fri 6/1220:00SEA - LHR
1 stop12h 50mAer Lingus
Sun 8/1207:50LHR - SEA
1 stop18h 25mAer Lingus
Deal found 14/11£476
Mon 2/1220:00SEA - LHR
1 stop17h 50mMultiple Airlines
Sun 8/1208:25LHR - SEA
1 stop17h 50mMultiple Airlines
Deal found 14/11£491
Sun 29/1217:45SEA - LHR
Nonstop9h 25mVirgin Atlantic
Tue 14/106:20LHR - SEA
1 stop13h 00mVirgin Atlantic
Deal found 14/11£500
Wed 11/1217:45SEA - LHR
Nonstop9h 25mDelta
Thu 19/1212:40LHR - SEA
Nonstop10h 00mDelta
Deal found 13/11£520
Tue 10/1213:40PDX - LHR
1 stop12h 20mKLM
Wed 18/1209:10LHR - PDX
1 stop19h 20mKLM
Deal found 14/11£531
Wed 11/1211:56SEA - LHR
1 stop16h 04mUnited Airlines
Thu 19/1210:05LHR - SEA
1 stop19h 10mUnited Airlines
Deal found 13/11£532
Tue 31/1205:00PDX - LHR
1 stop20h 40mUnited Airlines
Sat 25/113:00LHR - PDX
1 stop13h 24mUnited Airlines
Deal found 14/11£545
Tue 31/1213:59PDX - LHR
1 stop14h 06mBritish Airways
Sun 12/109:25LHR - PDX
1 stop16h 28mBritish Airways
Deal found 14/11£550
Mon 30/1215:39PDX - LHR
1 stop15h 46mAmerican Airlines
Sun 12/114:20LHR - PDX
Nonstop10h 15mAmerican Airlines
Deal found 14/11£565

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 943,810 searches. Data last updated 15 November 2024.

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Any airport

Route

Depart

Return

Price

PortlandLondon

PDX - LHR

PDXLHR

Portland

Tue 3/12

14:35-19:30

1 stop20h 55m

London Heathrow

Tue 10/12

20:40-16:50

1 stop28h 10m

£467

SeattleLondon

SEA - LHR

SEALHR

Seattle/Tacoma Intl

Sun 23/3

15:35-19:30

1 stop20h 55m

London Heathrow

Mon 7/4

21:25-17:40

1 stop28h 15m

£472

PortlandLondon

PDX - LHR

PDXLHR

Portland

Tue 3/12

14:35-21:00

2 stops22h 25m

London Heathrow

Wed 11/12

07:50-16:50

2 stops17h 00m

£475

SeattleLondon

SEA - LHR

SEALHR

Seattle/Tacoma Intl

Fri 6/12

20:00-16:50

1 stop12h 50m

London Heathrow

Sun 8/12

07:50-18:15

1 stop18h 25m

£476

SeattleLondon

SEA - LHR

SEALHR

Seattle/Tacoma Intl

Mon 2/12

20:00-21:50

1 stop17h 50m

London Heathrow

Sun 8/12

08:25-18:15

1 stop17h 50m

£491

SeattleLondon

SEA - LHR

SEALHR

Seattle/Tacoma Intl

Tue 8/4

19:40-13:00

Nonstop9h 20m

London Heathrow

Wed 14/5

09:30-16:00

1 stop14h 30m

£496

SeattleLondon

SEA - LHR

SEALHR

Seattle/Tacoma Intl

Sun 29/12

17:45-11:10

Nonstop9h 25m

London Heathrow

Tue 14/1

06:20-11:20

1 stop13h 00m

£500

PortlandLondon

PDX - LHR

PDXLHR

Portland

Tue 14/1

10:10-07:10

2 stops37h 00m

London Heathrow

Thu 23/1

06:30-18:24

2 stops19h 54m

£501

PortlandLondon

PDX - LHR

PDXLHR

Portland

Wed 15/1

18:30-12:10

Nonstop9h 40m

London Heathrow

Wed 22/1

14:20-16:35

Nonstop10h 15m

£506

SeattleLondon

SEA - LHR

SEALHR

Seattle/Tacoma Intl

Wed 15/1

18:50-12:15

Nonstop9h 25m

London Heathrow

Wed 22/1

15:00-16:55

Nonstop9h 55m

£506

Flights are sorted by cheapest first

Deals found on 14/11

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 15 November 2024.

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 15 November 2024.

The most flights from USWA to LHR are scheduled on a Friday (22 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (12 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 15 November 2024.
Read reviews from past customers who have flown Icelandair, Aer Lingus and Finnair 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
8,786 reviews

Crew

8.5

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

Reviews

1 / 10

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

8.0
Very Good
8,786 reviews
8.0
Very Good
8,786 reviews

Crew

8.5

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

Reviews

1 / 10

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

8.0
Very Good
9,446 reviews
8.0
Very Good
8,786 reviews

Crew

8.5

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

Reviews

1 / 10

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

7.8
Good
1,350 reviews
8.0
Very Good
8,786 reviews

Crew

8.5

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

Reviews

1 / 10

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

7.7
Good
1,304 reviews
8.0
Very Good
8,786 reviews

Crew

8.5

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

Reviews

1 / 10

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

7.6
Good
1,638 reviews
8.0
Very Good
8,786 reviews

Crew

8.5

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Food

7.3

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 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 £169 on Icelandair. Other airlines that offer cheap prices include WestJet from £177 and Scandinavian Airlines from £300 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: KLM (84%), Air France (77%), Delta (77%).

  • 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 £313. On average you can expect to pay £706. The most popular route, (Seattle/Tacoma Intl - London Heathrow), can usually be booked for £422.

  • 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 943,810 searches. Data last updated 15 November 2024.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest£393Average£500FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
Air FranceCheapest£467Average£605FlexibilityNo cancel feeOn-time77%
Search Air France flights
Virgin AtlanticCheapest£474Average£666FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
British AirwaysCheapest£488Average£803FlexibilityNo cancel feeOn-time70%
Search British Airways flights

Fly with Cheapflights

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

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Washington to Heathrow. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

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.

Can Cheapflights notify me if prices for flights from Washington to Heathrow become cheaper?

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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