446 € Washington Dulles to Shannon Cheap Flights

Compare Washington Dulles to Shannon flight deals

Find the cheapest month or even day of the year to fly to Shannon

Book the best Shannon fare with no extra fees

Flight deals from Washington Dulles to Shannon

Looking for a cheap last-minute deal or the best return flight from Washington Dulles to Shannon? Find the lowest prices on one-way and return tickets right here.

Shannon.446 € per passenger.Departing Wed, 30 Jul, returning Wed, 6 Aug.Return flight with United.Outbound indirect flight with United, departs from Washington Dulles on Wed, 30 Jul, arriving in Shannon.Inbound indirect flight with United, departs from Shannon on Wed, 6 Aug, arriving in Washington Dulles.Price includes taxes and charges.From 446 €, select.

Shannon.486 € per passenger.Departing Sun, 6 Jul, returning Tue, 22 Jul.Return flight with Air France.Outbound indirect flight with Air France, departs from Washington Dulles on Sun, 6 Jul, arriving in Shannon.Inbound indirect flight with Air France, departs from Shannon on Tue, 22 Jul, arriving in Washington Dulles.Price includes taxes and charges.From 486 €, select.

Shannon.550 € per passenger.Departing Fri, 22 Aug, returning Mon, 1 Sep.Return flight with United.Outbound indirect flight with United, departs from Washington Dulles on Fri, 22 Aug, arriving in Shannon.Inbound indirect flight with United, departs from Shannon on Mon, 1 Sep, arriving in Washington Dulles.Price includes taxes and charges.From 550 €, select.

Shannon.609 € per passenger.Departing Fri, 8 Aug, returning Fri, 15 Aug.Return flight with KLM.Outbound indirect flight with KLM, departs from Washington Dulles on Fri, 8 Aug, arriving in Shannon.Inbound indirect flight with KLM, departs from Shannon on Fri, 15 Aug, arriving in Washington Dulles.Price includes taxes and charges.From 609 €, select.

Shannon.671 € per passenger.Departing Sat, 13 Sep, returning Fri, 26 Sep.Return flight with British Airways.Outbound indirect flight with British Airways, departs from Washington Dulles on Sat, 13 Sep, arriving in Shannon.Inbound indirect flight with British Airways, departs from Shannon on Fri, 26 Sep, arriving in Washington Dulles.Price includes taxes and charges.From 671 €, select.

Shannon.681 € per passenger.Departing Fri, 7 Nov, returning Sun, 9 Nov.Return flight with British Airways.Outbound indirect flight with British Airways, departs from Washington Dulles on Fri, 7 Nov, arriving in Shannon.Inbound indirect flight with British Airways, departs from Shannon on Sun, 9 Nov, arriving in Washington Dulles.Price includes taxes and charges.From 681 €, select.

Shannon.741 € per passenger.Departing Thu, 26 Jun, returning Sat, 5 Jul.Return flight with United.Outbound indirect flight with United, departs from Washington Dulles on Thu, 26 Jun, arriving in Shannon.Inbound indirect flight with United, departs from Shannon on Sat, 5 Jul, arriving in Washington Dulles.Price includes taxes and charges.From 741 €, select.

Shannon.741 € per passenger.Departing Sat, 27 Sep, returning Sat, 4 Oct.Return flight with Icelandair and Aer Lingus.Outbound indirect flight with Icelandair, departs from Washington Dulles on Sat, 27 Sep, arriving in Shannon.Inbound indirect flight with Aer Lingus, departs from Shannon on Sat, 4 Oct, arriving in Washington Dulles.Price includes taxes and charges.From 741 €, select.

Find the cheapest month to fly from Washington Dulles to Shannon

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Washington Dulles to Shannon flights are currently cheapest in July.

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Jan

Feb

Mar

Apr

May

Washington Dulles to Shannon: Alternative routes

Compare routes from Washington Dulles to Shannon below. You may find an airport to fly into that's cheaper, faster, or easier than Shannon.

Washington D.C. to Shannon: Flight information

The things to know before you go.

Cheapest flight found	446 €
Cheapest month to fly	July

Finding cheap flights from Washington Dulles to Shannon: Frequently asked questions

How much are return flights from Washington Dulles to Shannon?

The best price we found for a return flight from Washington Dulles to Shannon is 446 €. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.

Which airlines fly direct from Washington Dulles to Shannon?

Currently, there are no airlines that fly direct from Washington Dulles to Shannon. But we found flights with one or more stops from 446 €.

How many flights are there a week from Washington Dulles to Shannon?

As of June 2025, there are no flights flying from Washington Dulles to Shannon.

When is the cheapest time to fly from Washington Dulles to Shannon?

The cheapest month to fly from Washington Dulles to Shannon is usually June 2025.

Which upcoming date is cheapest to fly from Washington Dulles Airport to Shannon Airport on?

After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Washington Dulles Airport to Shannon Airport on Wednesday, 30 July 2025.

Can I get a direct flight from Washington Dulles Airport to Shannon Airport?

No airlines currently offer direct flights between Washington Dulles Airport and Shannon Airport. Most routes have one or more stops.

How can I find the best flight deal to Shannon?

We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Shannon but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.

When is the best time to book flights to Shannon?

We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Shannon is around 40 days in advance, so don’t leave your flight to the last minute.

Which is the cheapest airline to fly from Washington Dulles Airport to Shannon with?

Currently, United offers the cheapest flight tickets to Shannon.

Travelling from Washington Dulles International Airport (IAD) to Shannon Airport (SNN): what you need to know

Shannon is four hours ahead of Washington DC and is in the UTC+0 timezone.
To ensure you catch your IAD to SNN flight, leave plenty of time to check in and find your gate. Arriving two hours before international departures and an hour before domestic flights is the general travel rule.
You'll likely experience longer lines during popular months such as April. Arriving up to four hours ahead of an international flight and two hours for a domestic departure will help ensure a smooth travel experience.
Consider adding a stopover when booking your ticket from Washington Dulles International Airport to Shannon Airport. Just uncheck 'Direct flights only' to break up your trip, or even explore someplace new along the way. Here's where you can stop between IAD and SNN:
- Edinburgh Airport
- London Heathrow Airport
- Newark Liberty International Airport

How to find the cheapest flights from Washington Dulles International Airport (IAD) to Shannon Airport (SNN)

The cheapest price we've found for a one-way Washington Dulles International Airport to Shannon Airport flight is 247 €. A return plane ticket right now is 446 €. Depending on the availability when you book, these fares may change.
To find cheap tickets from IAD to SNN, book ahead. Airlines typically offer the most competitive fares when flights are first made available.
If you're willing to be flexible with your travel plans, use the 'Whole month' search function. It'll give you the lowest price across the month when searching for your flight from Washington Dulles International Airport to Shannon Airport.
Picking up cheap flights from IAD to SNN couldn't be easier with Price Alerts. Simply create one of these automatic alerts and we'll let you know as soon as fares go down.
Tailor your trip with filters. Pick your departure and arrival times, total journey duration and airlines. You can also sort results by 'Best,' 'Fastest' or 'Cheapest' flights from Washington Dulles International Airport to Shannon Airport.

Handy information about Washington Dulles International Airport (IAD)

IAD's address is 1 Saarinen Circle.
Of the flights that depart from Washington Dulles International Airport, 74.39% touch down on time at their destination.
To get to Washington Dulles International Airport from central Washington DC, it takes about 50 minutes if you're travelling by car. This depends on traffic, however. It's approximately 56 kilometres from the airport to the city centre.
Expect a trip time of roughly 3 hours 25 minutes on public transport.
Get your holiday off to a hassle-free start by staying near IAD. Whether you're catching an early flight from Washington Dulles International Airport to Shannon Airport or want to avoid feeling rushed, these hotels are ideal:

Arriving at Shannon Airport (SNN)

If you're landing on a late Washington Dulles International Airport to Shannon Airport flight, few things top the convenience of being near the terminal. Collect your bags from the carousel and then be showered and snoozing soon after at one of these accommodation options near SNN:
Fast-track your adventure by picking up a Shannon Airport rental car. Grab your wheels from Easirent, Budget or Carhire and explore beyond Shannon's usual tourist stops.
Lock in the lowest price by booking your ride from Shannon Airport around four weeks ahead of your trip.

Getting from Shannon Airport (SNN) to central Shannon

Shannon Airport is approximately 5 kilometres from central Shannon. The drive time takes about 5 minutes.
It typically takes 10 minutes to get there by public transport.

When to fly to Shannon Airport (SNN)

The quietest month for a flight from Washington Dulles International Airport to Shannon Airport is April, while August is the busiest. Pick the best time to visit Shannon based on whether you prefer a more fast-paced or easygoing experience.
When reserving your flight from Washington Dulles International Airport to Shannon Airport, think about the kind of weather you like. July is the warmest month in Shannon, with the temperature ranging from 10ºC (50ºF) to 22ºC (72ºF).
Look for cheap tickets from IAD to SNN in January if you like cooler conditions. Temperatures are at their lowest around then, ranging between 0ºC (32ºF) and 9ºC (48ºF) on average.

Explore more of Ireland

Shannon is always a good idea, but there are so many other corners of Ireland just waiting to be discovered. Around 193 kilometres north-east of Shannon, a visit to Dublin will keep you busy. Start with attractions like Guinness Storehouse, Trinity College Library and Dublin Castle.
Cork is another standout destination in Ireland and is around 97 kilometres south of Shannon. No journey is complete without dropping by Blarney Castle, Fota Wildlife Park and Titanic Experience Cobh.