Find flights
Deals
FAQs

Cheap First Class flights to Washington, D.C. Dulles Intl Airport

LHR — IAD
3 Dec — 10 Dec1
1 adult
1 adult, First, 0 bags

Best travel deals

Find the best flight deals available from hundreds of sites within seconds

Trusted and free

Cheapflights is 100% free to use. No hidden charges!

Book with flexibility

Easily find flight tickets with no change fees

Cheap first class flights to Washington, D.C. Dulles Intl Airport in 2025

Find the latest flights to Washington, D.C. Dulles Intl Airport 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 3 November 2025.

Average Price

£3,127

Cheapest Price

£2,181

Top Rated Airline

British Airways

No. of Airlines

1
Average for return first class flights in November 2025
Search Deals
The lowest price for a first class flight ticket to Dulles Intl
Search Deals
Most popular airline to fly first class with to Dulles Intl in the past 7 days
Search Deals
Airline that offers first class options for this route
Search Deals

Find first class flight deals to Washington, D.C. Dulles Intl Airport

Enter your travel dates to find the best prices.

Cheapest first class flights to Dulles Intl
Explore the most affordable first class flight options available to Dulles Intl. Find the lowest fares based on data from user searches, with prices last updated on 3 November 2025.

Tue 16/1216:25LHR - IAD
Nonstop8h 30mBritish Airways
Tue 23/1221:45IAD - LHR
Nonstop7h 15mBritish Airways
Deal found 1/11£2,516
Fri 6/216:25LHR - IAD
Nonstop8h 30mBritish Airways
Fri 27/221:45IAD - LHR
Nonstop7h 15mBritish Airways
Deal found 2/11£2,662
Tue 16/1216:25LHR - IAD
Nonstop8h 30mFinnair
Tue 23/1209:12IAD - LHR
1 stop17h 08mFinnair
Deal found 1/11£3,245
Sun 16/1111:45LHR - IAD
1 stop27h 34mFinnair
Sun 30/1120:05IAD - LHR
2 stops29h 15mFinnair
Deal found 2/11£6,036
Sun 16/1116:25LHR - IAD
Nonstop8h 30mBritish Airways
Thu 27/1121:45IAD - LHR
Nonstop7h 15mBritish Airways
Deal found 1/11£8,341
Sun 16/1111:45LHR - IAD
1 stop12h 36mAmerican Airlines
Fri 28/1121:45IAD - LHR
Nonstop7h 15mAmerican Airlines
Deal found 1/11£8,763

Travel insights for first class flights from United Kingdom to Dulles Intl

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

Rainfall in Dulles Intl by month

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

In terms of precipitation, rainfall in Washington, D.C. Dulles Intl Airport 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. Dulles Intl Airport when rainfall is around 66.0 mm.

Temperature in Dulles Intl by month

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

If weather is an important factor for your trip to Washington, D.C. Dulles Intl 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 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).

Frequently asked questions about Washington, D.C. Dulles Intl Airport first class tickets

Find answers to common questions related to first class tickets for flights to Washington, D.C. Dulles Intl Airport. Get information on booking, amenities, upgrade options, and more. This FAQ section was last updated on 3 November 2025.

  • What is the cheapest price for a First Class ticket to Washington, D.C. Dulles Intl Airport?

    According to recent data, a user was able to book a First Class flight from London Heathrow Airport to Washington, D.C. Dulles Intl Airport for just £2,181. Secure the cheapest First Class flight tickets to Washington, D.C. Dulles Intl Airport now - prices start at £3,127/person!

  • How much do Business Class flight tickets to Washington, D.C. Dulles Intl Airport cost?

    If First Class cabins are above your budget, Business Class is a great alternative for 38% cheaper - plus, you still get some similar premium services and extra leg room. Business Class flights to Washington, D.C. Dulles Intl Airport are currently about £1,945/ticket.

  • How many premium cabins does Finnair have for flights to Washington, D.C. Dulles Intl Airport?

    Finnair currently offers a couple premium cabin classes on flights to Washington, D.C. Dulles Intl Airport: Prem Economy Class, Business Class and First Class. Still not enough? Try taking a look at other airlines or choosing a new departing point for more cabin options.

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.