Cheap First Class flights to Washington, D.C.
LHR — WAS
18 Oct — 25 Oct1
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Easily find flight tickets with no change feesCheap first class flights to Washington, D.C. in 2025
Find the latest flights to Washington, D.C. in 2025, with up-to-date prices and availability. In the last 7 days, Cheapflights users made a total of 858,174 searches and data were last updated on 18 September 2025.
Average Price | £3,014 |
|---|---|
Cheapest Price | £2,102 |
Top Rated Airline | Finnair |
No. of Airlines | 3 |
Arrival Airport | Washington, D.C. Dulles Intl Airport |
Find first class flight deals to Washington, D.C.
Cheapest first class flights to Washington, D.C.Explore the most affordable first class flight options available to Washington, D.C.. Find the lowest fares based on data from user searches, with prices last updated on 18 September 2025.
Explore the most affordable first class flight options available to Washington, D.C.. Find the lowest fares based on data from user searches, with prices last updated on 18 September 2025.
Wed 1/1009:45LHR - BWI
2 stops18h 18mFinnair
Wed 15/1009:30BWI - LHR
1 stop17h 10mFinnair
Deal found 16/9£3,510
Tue 21/1017:00LHR - IAD
Nonstop8h 15mBritish Airways
Wed 24/1221:45IAD - LHR
Nonstop7h 15mBritish Airways
Deal found 16/9£3,516
Wed 1/1017:00LHR - IAD
Nonstop8h 15mAmerican Airlines
Wed 15/1014:18IAD - LHR
1 stop12h 22mAmerican Airlines
Deal found 16/9£3,984
Wed 1/1012:45LHR - IAD
Nonstop8h 10mBritish Airways
Wed 15/1022:45IAD - LHR
Nonstop7h 20mBritish Airways
Deal found 16/9£5,596
Wed 19/1116:25LHR - IAD
Nonstop8h 30mAmerican Airlines
Fri 19/1213:57IAD - LHR
1 stop12h 23mAmerican Airlines
Deal found 16/9£8,398
Travel insights for first class flights from United Kingdom to Washington, D.C.
Get recent, data-driven insights about first class flights from United Kingdom to Washington, D.C. including ideal travel times, pricing trends, and more.
Rainfall in Washington, D.C. by month
Plan your trip to Washington, D.C. by taking into account the average rainfall totals by month.
In terms of precipitation, rainfall in Washington, D.C. ranges from 66.0 - 102.0 inches per month. May is typically the wettest month, when rainfall can reach 102.0 mm. February is typically the driest time to visit Washington, D.C. when rainfall is around 66.0 mm.
Temperature in Washington, D.C. by month
Plan your trip to Washington, D.C. by taking into account the average temperature totals by month.
If weather is an important factor for your trip to Washington, D.C., 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 27.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 2.0 C).