IAD - SNN

$348 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 round-trip
$648
Typical prices: $707-$1,183
United Airlines
Fri 10/12Fri 10/19
IAD - SNN • 1 stop
Cheapest one-way
$333
Typical prices: $535-$633
Multiple Airlines
Mon 2/12
IAD - SNN • 3 stops
Nonstop 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 layover airports
London Heathrow (LHR)
Cheapest • Avg $844 (round-trip)
New York John F Kennedy Intl (JFK)
Shortest trip • 10h 33m (one-way)
Insights
Insights
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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 round-trip flight deals from Dulles Intl to Shannon

Mon, Oct 12 - Mon, Oct 19
United Airlines Logo
12:38 pm - 10:15 amIAD  Washington, D.C. Dulles Intl-SNN Shannon
16h 37m1 stop Newark
United Airlines Logo
12:30 pm - 10:59 pmSNN  Shannon-IAD Washington, D.C. Dulles Intl
15h 29m1 stop Newark
$648United Airlines
Fri, Oct 9 - Sat, Oct 24
United Airlines Logo
10:40 pm - 10:15 amIAD  Washington, D.C. Dulles Intl-SNN Shannon
30h 35m1 stop Newark
United Airlines Logo
12:30 pm - 10:59 pmSNN  Shannon-IAD Washington, D.C. Dulles Intl
15h 29m1 stop Newark
$704United Airlines
Fri, Oct 16 - Sat, Oct 24
United Airlines Logo
6:45 am - 10:15 amIAD  Washington, D.C. Dulles Intl-SNN Shannon
22h 30m1 stop Newark
United Airlines Logo
12:30 pm - 10:59 pmSNN  Shannon-IAD Washington, D.C. Dulles Intl
15h 29m1 stop Newark
$704United Airlines
Wed, Jan 13 - Mon, Jan 18
British Airways Logo
9:55 pm - 7:25 pmIAD  Washington, D.C. Dulles Intl-SNN Shannon
16h 30m1 stop London Heathrow
British Airways Logo
8:05 pm - 3:40 pmSNN  Shannon-IAD Washington, D.C. Dulles Intl
24h 35m1 stop London Heathrow
$745British Airways
Wed, Feb 10 - Mon, Feb 15
British Airways Logo
9:55 pm - 7:25 pmIAD  Washington, D.C. Dulles Intl-SNN Shannon
16h 30m1 stop London Heathrow
British Airways Logo
8:05 pm - 3:40 pmSNN  Shannon-IAD Washington, D.C. Dulles Intl
24h 35m1 stop London Heathrow
$745British Airways
Tue, Oct 20 - Tue, Nov 3
British Airways Logo
10:25 pm - 4:10 pmIAD  Washington, D.C. Dulles Intl-SNN Shannon
12h 45m1 stop London Heathrow
British Airways Logo
7:50 am - 3:40 pmSNN  Shannon-IAD Washington, D.C. Dulles Intl
12h 50m1 stop London Heathrow
$752British Airways
Mon, Oct 26 - Mon, Nov 2
Aer Lingus Logo
7:05 pm - 4:45 pmIAD  Washington, D.C. Dulles Intl-SNN Shannon
17h 40m1 stop London Heathrow
Aer Lingus Logo
8:05 pm - 7:20 pmSNN  Shannon-IAD Washington, D.C. Dulles Intl
28h 15m2 stops London Heathrow Dublin
$754Aer Lingus
Mon, Oct 26 - Mon, Nov 2
Aer Lingus Logo
6:15 pm - 11:30 amIAD  Washington, D.C. Dulles Intl-SNN Shannon
13h 15m2 stops Dublin London Heathrow
Aer Lingus Logo
8:05 pm - 3:45 pmSNN  Shannon-IAD Washington, D.C. Dulles Intl
24h 40m2 stops London Heathrow Dublin
$755Aer Lingus
Wed, Oct 28 - Wed, Nov 4
Aer Lingus Logo
9:50 pm - 4:45 pmIAD  Washington, D.C. Dulles Intl-SNN Shannon
14h 55m2 stops Dublin London Heathrow
Aer Lingus Logo
8:05 pm - 7:20 pmSNN  Shannon-IAD Washington, D.C. Dulles Intl
28h 15m2 stops London Heathrow Dublin
$755Aer Lingus
Wed, Oct 28 - Wed, Nov 4
British Airways Logo
10:55 pm - 7:25 pmIAD  Washington, D.C. Dulles Intl-SNN Shannon
16h 30m1 stop London Heathrow
British Airways Logo
5:30 pm - 3:45 pmSNN  Shannon-IAD Washington, D.C. Dulles Intl
27h 15m2 stops London Heathrow Dublin
$755British 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.

How much is a round-trip flight from Washington, D.C. Dulles Intl Airport to Shannon?

Round-trip flights from Washington, D.C. Dulles Intl Airport to Shannon start at $648. Prices are below average for this route right now, with typical round-trip fares ranging from $707 to $1,183. The lowest price found in the past 5 days was $648 on United Airlines.

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, it 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

$333
Best time to beat the crowds with an average 36% drop in price.
Most popular time to fly with an average 22% increase in price.
Flight 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 round-trip 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).

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

    Four cabin classes are available on flights from Washington, D.C. Dulles Intl Airport to Shannon:

    • Economy Class
    • Premium Economy Class
    • Business Class
    • First Class

    Prices vary by airline.

  • 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 $493 round-trip on average, while Sunday is the most expensive at $1,684, a difference of $1,191. 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 nonstop flight from Washington, D.C. Dulles Intl Airport to Shannon takes 0h 00m, covering 3,296 miles.

  • 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, round-trip prices on this route showed a wide range, from about $648 to $2,466. That means the highest observed fare was about 4x 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 $434, which is 20% below the typical average for this route.

  • How much time can I save by choosing a different layover 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 at 10h 33m, compared with 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.

  • What car rental options are available at Shannon Airport (SNN)?

    Shannon Airport (SNN) hosts 5 major car rental companies, with daily rates starting from around $4 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?

    Round-trip flights from Washington, D.C. Dulles Intl Airport to Shannon range from $707 to $1,183, with an average of $947 over the past 12 months. Anything below $707 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 can be flexible, aim for a Tuesday departure instead of Sunday. On this route, Tuesday flights average $493 - about $1,191 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 $493 round-trip in that month - typically $1,110 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 rental

Car rentals in Shannon
Hotels in Shannon