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Find cheap Finnair flights to Washington, D.C.

CMH — WAS
26 Aug — 2 Sep1
1 adult
1 adult, Economy, 0 bags

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Cheapest Finnair flights from United Kingdom to Washington, D.C.
Explore the most affordable Finnair flight options available from United Kingdom to Washington, D.C.. Find the lowest fares with prices last updated on 27 July 2026.

Thu 20/814:10
LHR
-
DCA
1 stop14h 23m
Finnair
Wed 26/817:23
DCA
-
LHR
1 stop12h 07m
Finnair
Deal found 23/7£477
Mon 24/812:35
LHR
-
IAD
Nonstop8h 20m
Finnair
Mon 31/819:15
IAD
-
LHR
Nonstop7h 30m
Finnair
Deal found 24/7£490
Fri 28/809:45
LHR
-
DCA
1 stop13h 18m
Finnair
Fri 4/906:00
DCA
-
LHR
1 stop10h 40m
Finnair
Deal found 24/7£491

Flights to Washington, D.C. with Finnair at a glance

Find detailed information about Finnair flights from United Kingdom to Washington, D.C.. Explore the options provided by Finnair to plan your journey from United Kingdom to Washington, D.C.. Data last updated 27 July 2026.

Popular in

February

Cheapest in

May

Average price

£659

Return from

£460

One-way from

£359
Highest demand for flights to Washington, D.C. with Finnair; 30% potential price increase.
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Best time to find cheap flights to Washington, D.C. with Finnair; 13% potential price drop.
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Average price for flights to Washington, D.C. with Finnair (return).
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Finnair
  • Finnair
  • 23/12-3/1
  • 1 total stop
  • 20h 55m total
  • United Kingdom to Washington, D.C.
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Finnair
  • Finnair
  • 6/10
  • 1 total stop
  • 14h 29m total
  • United Kingdom to Washington, D.C.
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Cheapflights Insights

Find cheap Finnair flights to Washington, D.C.

How long is the flight to Washington, D.C. with Finnair?

On average, Finnair flights from the United Kingdom to Washington, D.C. take 9 hours 28 minutes. Flights to Washington, D.C. from other popular cities in the United Kingdom will vary in length. Below are a few examples of popular routes and their flight times.

Finnair weekly flight availability to Washington, D.C.

The most flights to Washington, D.C. operated by Finnair are scheduled on a Monday (4 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (3 on average).

FAQs about flights to Washington, D.C. with Finnair

  • Which airport do Finnair flights arrive at when travelling to Washington, D.C.?

    Finnair flights on this route tend to land at Washington, D.C. Dulles Intl Airport.

  • Is Finnair the cheapest airline for a flight to Washington, D.C.?

    Flight prices will depend on factors like date, time, and cabin class, so it is worth comparing flights before booking. Based on Cheapflights data, the cheapest average return price for flights to Washington, D.C. tends to be with PLAY.

  • Are there alternative airlines other than Finnair that fly to Washington, D.C.?

    Virgin Atlantic, British Airways and Aer Lingus all fly to Washington, D.C. and offer an alternative to Finnair.

  • How much is a Finnair flight to Washington, D.C.?

    The average price for a return flight with Finnair is £630, while a one-way flight costs around £657.

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Reviews of Finnair

See what Cheapflights users have to say about their Finnair experience.
Finnair
7.6
Good
1,427 reviews
Check prices
Overview

Comfort

7.4

Food

6.7

Entertainment

6.9

Boarding

7.7

Crew

8.2

Popular Finnair flights

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Airports serving Washington, D.C.

Book a flight to or from one of these Washington, D.C. airports.
Flights to Reagan-National
Flights to Dulles Intl
Flights from Reagan-National
Flights from Dulles Intl