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

LHR — IAD
16 Jul — 23 Jul1
1 adult

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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 11 July 2025.

Average Price

£3,888

Cheapest Price

£2,829

Top Rated Airline

Finnair

No. of Airlines

5
Average for return first class flights in July 2025
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The lowest price for a first class flight ticket to Dulles Intl
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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 11 July 2025.

Wed 1/1011:00LHR - IAD
1 stop31h 23mFinnair
Wed 15/1014:18IAD - LHR
1 stop12h 22mFinnair
Deal found 10/7£3,679
Wed 1/1012:45LHR - IAD
Nonstop8h 10mBritish Airways
Wed 15/1022:45IAD - LHR
Nonstop7h 20mBritish Airways
Deal found 10/7£3,888
Tue 12/811:00LHR - IAD
1 stop12h 52mAmerican Airlines
Sat 1/1122:55IAD - LHR
Nonstop7h 10mAmerican Airlines
Deal found 9/7£4,365

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 11 July 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 £2,829. Secure the cheapest First Class flight tickets to Washington, D.C. Dulles Intl Airport now - prices start at £3,888/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 41% 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 £2,316/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.

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