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

LHR — IAD
4 May — 11 May1
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 29 April 2025.

Top Rated Airline

Finnair

No. of Airlines

6
Most popular airline to fly first class with to Dulles Intl in the past 7 days
Airlines that offer first class options for this route

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

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 29 April 2025.

Sun 29/617:05LHR - IAD
Nonstop8h 10mBritish Airways
Wed 9/717:50IAD - LHR
Nonstop7h 25mBritish Airways
Deal found 29/4£3,478
Sun 29/612:45LHR - IAD
Nonstop8h 05mAmerican Airlines
Wed 9/713:19IAD - LHR
1 stop13h 21mAmerican Airlines
Deal found 29/4£3,778

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 29 April 2025.
  • 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: Business Class, Prem Economy 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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