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Find cheap Aer Lingus flights to Washington, D.C. Dulles Intl Airport

CMH — IAD
27 Aug — 3 Sep1
1 adult
1 adult, Economy, 0 bags

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Cheapest Aer Lingus flights from United Kingdom to Dulles Intl
Explore the most affordable Aer Lingus flight options available from United Kingdom to Dulles Intl. Find the lowest fares with prices last updated on 28 July 2026.

Thu 27/808:50
LHR
-
IAD
1 stop11h 55m
Aer Lingus
Thu 3/920:40
IAD
-
LHR
1 stop11h 00m
Aer Lingus
Deal found 27/7£528
Thu 13/808:10
BHX
-
IAD
1 stop12h 35m
Aer Lingus
Wed 19/820:55
IAD
-
BHX
1 stop14h 10m
Aer Lingus
Deal found 27/7£528
Tue 11/821:10
LHR
-
IAD
2 stops23h 20m
Aer Lingus
Tue 18/821:05
IAD
-
LHR
1 stop10h 35m
Aer Lingus
Deal found 24/7£536

Flights to Washington, D.C. Dulles Intl Airport with Aer Lingus at a glance

Find detailed information about Aer Lingus flights from United Kingdom to Dulles Intl. Explore the options provided by Aer Lingus to plan your journey from United Kingdom to Dulles Intl. Data last updated 28 July 2026.

Popular in

January

Cheapest in

November

Average price

£640

Return from

£453

One-way from

£318
Highest demand for flights to Washington, D.C. Dulles Intl Airport with Aer Lingus; 4% potential price increase.
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Best time to find cheap flights to Washington, D.C. Dulles Intl Airport with Aer Lingus; 2% potential price drop.
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Average price for flights to Washington, D.C. Dulles Intl Airport with Aer Lingus (return).
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Aer Lingus
  • Aer Lingus
  • 2/9-8/9
  • 2 total stops
  • 21h 45m total
  • United Kingdom to Washington, D.C.
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Aer Lingus
  • Aer Lingus
  • 25/10
  • 2 total stops
  • 37h 05m total
  • United Kingdom to Washington, D.C.
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Cheapflights Insights

Find cheap Aer Lingus flights to Washington, D.C. Dulles Intl Airport

How long is the flight to Washington, D.C. Dulles Intl Airport with Aer Lingus?

On average, Aer Lingus flights from the United Kingdom to Washington, D.C. Dulles Intl Airport take 9 hours 11 minutes. Flights to Washington, D.C. Dulles Intl Airport from other popular cities in the United Kingdom will vary in length. Below are a few examples of popular routes and their flight times.

Aer Lingus weekly flight availability to Washington, D.C. Dulles Intl Airport

The most flights to Washington, D.C. Dulles Intl Airport operated by Aer Lingus are scheduled on a Monday (2 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (2 on average).

When is the best time to book a flight to Washington, D.C. Dulles Intl Airport with Aer Lingus?

The best time to book a flight to Washington, D.C. Dulles Intl Airport with Aer Lingus is 75 days before departure. On average, fares are higher if you book 77 days before departure.

FAQs about flights to Washington, D.C. Dulles Intl Airport with Aer Lingus

  • Which airport do Aer Lingus flights arrive at when travelling to Washington, D.C. Dulles Intl Airport?

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

  • Is Aer Lingus the cheapest airline for a flight to Washington, D.C. Dulles Intl Airport?

    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. Dulles Intl Airport tends to be with PLAY.

  • Are there alternative airlines other than Aer Lingus that fly to Washington, D.C. Dulles Intl Airport?

    Virgin Atlantic, British Airways and Lufthansa all fly to Washington, D.C. Dulles Intl Airport and offer an alternative to Aer Lingus.

  • How much is a Aer Lingus flight to Washington, D.C. Dulles Intl Airport?

    The average price for a return flight with Aer Lingus is £644, while a one-way flight costs around £522.

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Reviews of Aer Lingus

See what Cheapflights users have to say about their Aer Lingus experience.
Aer Lingus
7.3
Good
1,682 reviews
Check prices
Overview

Crew

8.1

Food

6.7

Comfort

7.2

Entertainment

7.0

Boarding

7.4

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