IAD - SNN

€249 Find Cheap Flights from Washington Dulles Airport to Shannon – Compare and Save

1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest return flight
€646
Typical prices: €608-€1,017
Aer Lingus
Sat 24/2Fri 2/3
IAD - SNN • 1 stop
Cheapest one-way flight
€249
Typical prices: €460-€544
Multiple Airlines
Sun 21/10
IAD - SNN • 2 stops
Direct flights
Not available
There are currently no direct flights between Washington, D.C. Dulles Intl Airport and Shannon. You'll need to take a connecting flight to reach the destination.
Insights
Insights
When to travel
March
Cheapest • 48% price drop
July
Most popular
Good to know
+1
Good to know
+1
Top stopover airports
London Heathrow (LHR)
Cheapest • Avg €725 (return)
New York John F Kennedy Intl (JFK)
Shortest trip • 10h 33m (one-way)
Insights
Insights
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We hope you enjoy your trip to Shannon!
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Flight Deals

Cheap Flights from Dulles Intl to Shannon (IAD-SNN)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Dulles Intl to Shannon

Wed, 24 Feb - Tue, 2 Mar
Multiple Airlines Logo
18:05 - 11:30IAD  Washington, D.C. Dulles Intl-SNN Shannon
12h 25m1 stop London Heathrow
Multiple Airlines Logo
07:50 - 15:40SNN  Shannon-IAD Washington, D.C. Dulles Intl
12h 50m1 stop London Heathrow
€646Multiple Airlines
Wed, 24 Feb - Tue, 2 Mar
British Airways Logo
21:55 - 19:25IAD  Washington, D.C. Dulles Intl-SNN Shannon
16h 30m1 stop London Heathrow
British Airways Logo
07:50 - 15:40SNN  Shannon-IAD Washington, D.C. Dulles Intl
12h 50m1 stop London Heathrow
€650British Airways
Wed, 24 Feb - Tue, 2 Mar
British Airways Logo
18:05 - 19:25IAD  Washington, D.C. Dulles Intl-SNN Shannon
20h 20m1 stop London Heathrow
British Airways Logo
17:30 - 19:20SNN  Shannon-IAD Washington, D.C. Dulles Intl
30h 50m2 stops London Heathrow Dublin
€653British Airways
Tue, 16 Feb - Tue, 23 Feb
Multiple Airlines Logo
18:05 - 11:30IAD  Washington, D.C. Dulles Intl-SNN Shannon
12h 25m1 stop London Heathrow
Multiple Airlines Logo
07:50 - 15:40SNN  Shannon-IAD Washington, D.C. Dulles Intl
12h 50m1 stop London Heathrow
€658Multiple Airlines
Mon, 1 Mar - Wed, 10 Mar
British Airways Logo
18:05 - 16:45IAD  Washington, D.C. Dulles Intl-SNN Shannon
17h 40m1 stop London Heathrow
British Airways Logo
20:05 - 15:40SNN  Shannon-IAD Washington, D.C. Dulles Intl
24h 35m1 stop London Heathrow
€660British Airways
Mon, 5 Oct - Tue, 20 Oct
United Airlines Logo
06:45 - 10:15IAD  Washington, D.C. Dulles Intl-SNN Shannon
22h 30m1 stop Newark
United Airlines Logo
12:30 - 22:59SNN  Shannon-IAD Washington, D.C. Dulles Intl
15h 29m1 stop Newark
€669United Airlines
Wed, 24 Feb - Tue, 2 Mar
British Airways Logo
17:15 - 11:30IAD  Washington, D.C. Dulles Intl-SNN Shannon
13h 15m2 stops Dublin London Heathrow
British Airways Logo
07:50 - 19:20SNN  Shannon-IAD Washington, D.C. Dulles Intl
16h 30m2 stops London Heathrow Dublin
€669British Airways
Mon, 5 Oct - Tue, 20 Oct
British Airways Logo
19:15 - 16:10IAD  Washington, D.C. Dulles Intl-SNN Shannon
15h 55m1 stop London Heathrow
British Airways Logo
07:30 - 17:25SNN  Shannon-IAD Washington, D.C. Dulles Intl
14h 55m1 stop London Heathrow
€670British Airways
Mon, 5 Oct - Tue, 20 Oct
British Airways Logo
22:25 - 16:10IAD  Washington, D.C. Dulles Intl-SNN Shannon
12h 45m1 stop London Heathrow
British Airways Logo
21:15 - 15:45SNN  Shannon-IAD Washington, D.C. Dulles Intl
23h 30m2 stops London Heathrow Dublin
€675British Airways
Wed, 7 Oct - Wed, 14 Oct
British Airways Logo
22:25 - 20:35IAD  Washington, D.C. Dulles Intl-SNN Shannon
17h 10m1 stop London Heathrow
British Airways Logo
21:15 - 15:55SNN  Shannon-IAD Washington, D.C. Dulles Intl
23h 40m1 stop London Heathrow
€678British Airways
Booking Insights

Price, demand, and travel trends for Washington, D.C. Dulles Intl Airport to Shannon flights

Use KAYAK data on prices, travel dates, airlines, and seasonal trends to compare options and book flights from Washington, D.C. Dulles Intl Airport to Shannon with more confidence.

What's the cheapest day of the week to fly from Washington, D.C. Dulles Intl Airport to Shannon?

Tuesday is the cheapest day of the week to fly from Washington, D.C. Dulles Intl Airport to Shannon and is 48% cheaper than the average day. Sunday is the most expensive day with flight prices 77% higher than average. Based on deals found by KAYAK users in the last 12 months.

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Key details for Washington, D.C. Dulles Intl Airport to Shannon flights

Low season

November

Cheapest flight

€249
Best time to beat the crowds (36% less expensive on average)
Most popular time to fly (22% more expensive on average)
Flights from Washington, D.C. Dulles Intl Airport to Shannon

When to book flights from Dulles Intl to Shannon

Are your dates flexible? Find out the best times to travel from Dulles Intl to Shannon based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price

Your Washington, D.C. Dulles Intl Airport to Shannon flight questions, answered

Find helpful route details based on KAYAK data, including flight times, airports, airlines, and booking questions.

  • Which airports can I use when flying from Washington, D.C. Dulles Intl Airport to Shannon?

    Flights from Washington, D.C. Dulles Intl Airport to Shannon usually depart from Washington, D.C. Dulles Intl (IAD) and arrive at Shannon (SNN).

  • Which cabin classes can I book on flights from Washington, D.C. Dulles Intl Airport to Shannon?

    Only Economy class is available on flights from Washington, D.C. Dulles Intl Airport to Shannon.

  • Which airports do connecting flights from Washington, D.C. Dulles Intl Airport to Shannon pass through?

    One-stop flights from Washington, D.C. Dulles Intl Airport to Shannon most commonly connect through:

    • New York John F Kennedy Intl (JFK) – 51% of one-stop connections
    • London Heathrow (LHR) – 33% of one-stop connections
    • Chicago O'Hare Intl (ORD) – 16% of one-stop connections

    New York John F Kennedy Intl (JFK) handles the largest share of one-stop connections on this route.

  • Can I save money by using flexible dates for flights from Washington, D.C. Dulles Intl Airport to Shannon?

    Yes. Being flexible with your travel dates can save you up to 71% on the Washington, D.C. Dulles Intl Airport to Shannon route. Tuesday is the cheapest departure day at €424 return on average, while Sunday is the most expensive at €1,447, a difference of €1,024. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • How long is a flight from Washington, D.C. Dulles Intl Airport to Shannon?

    A direct flight from Washington, D.C. Dulles Intl Airport to Shannon takes 0h 00m, covering 8,537 km.

  • Do I need a passport to fly from Washington, D.C. Dulles Intl Airport to Shannon?

    Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

  • Have flight prices from Washington, D.C. Dulles Intl Airport to Shannon changed much recently?

    Yes. Based on fares seen in the past 5 days, return flight prices on this route showed a wide range, from about €646 to €6,355. That means the highest observed fare was about 10x higher than the lowest one.

  • How are flight prices from Washington, D.C. Dulles Intl Airport to Shannon looking right now?

    One-way fares from Washington, D.C. Dulles Intl Airport to Shannon are currently lower than usual. Average one-way flight prices are about €280, which is 40% below the typical average for this route.

  • How much time can I save by choosing a different stopover airport from Washington, D.C. Dulles Intl Airport to Shannon?

    Flying via New York John F Kennedy Intl (JFK) gives the shortest average 1-stop total travel time of 10h 33m, compared to 12h 36m via London Heathrow (LHR) and 14h 28m via Chicago O'Hare Intl (ORD).

  • What is the time difference between Washington, D.C. Dulles Intl Airport and Shannon?

    Shannon is 5 hours ahead of Washington, D.C. Dulles Intl Airport (Irish Time vs Eastern Time). Plan for the time shift when scheduling connections or first-day activities.

  • Which car hire options are available at Shannon Airport (SNN)?

    Shannon Airport (SNN) hosts 5 major car hire companies, with daily rates starting from around €3 for economy cars. Top options include:
    · Budget
    · Sixt
    · Europcar
    · Thrifty
    · Easirent

  • How much should I expect to pay for a Washington, D.C. Dulles Intl Airport to Shannon flight?

    Return flights from Washington, D.C. Dulles Intl Airport to Shannon range from €608 to €1,017, with an average of €814 over the past 12 months. Anything below €608 counts as a good deal.

Your guide to booking Washington, D.C. Dulles Intl Airport to Shannon flights

Get tips on when to book, when to fly, and what to know before your trip.
  • If your dates are flexible, aim for a Tuesday departure instead of Sunday. On this route, Tuesday flights average €424 – about €1,024 less than Sunday (71% savings) based on the last 12 months.
  • If you can choose when to travel, plan your Washington, D.C. Dulles Intl Airport to Shannon trip for March. Fares historically average €424 return in that month – typically €954 less than the most expensive month, which is June (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Shannon Airport.
    - Park Inn by Radisson Shannon Airport
    - Treacys Oakwood Hotel

More options for your flight from Dulles Intl to Shannon

Complete your trip to Shannon with a hotel stay or car hire

Car hire in Shannon
Hotels in Shannon
Holidays in Shannon