IAD - SNN

$300 Find Cheap Flights from Washington Dulles Airport to Shannon - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Dulles Intl to Shannon departing on 10/6. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Shannon

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to Shannon, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to Shannon, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$791
Multiple Airlines
Tue 9/29Thu 10/15
IAD - SNN • 1 stop
Cheapest one-way
$300
Multiple Airlines
Tue 10/6
IAD - SNN • 2 stops
Top airlines
Cheapest • from $819 (round-trip)
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Dulles Intl and Shannon. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $974 (round-trip)
Shortest trip • 8h 55m (one-way)
Insights
Insights
Insights
Insights
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Shannon!
Flight Deals
Booking Insights
Flight Deals

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

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Dulles Intl to Shannon that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Dulles Intl to Shannon

Tue, Sep 29 - Thu, Oct 15
Multiple Airlines Logo
8:25 pm - 1:40 pm
IAD
-
SNN
12h 15m
1 stop
Multiple Airlines Logo
9:55 am - 7:09 pm
SNN
-
IAD
38h 14m
2 stops
$791Multiple Airlines
Fri, Oct 2 - Wed, Oct 14
Multiple Airlines Logo
8:30 pm - 10:35 pm
IAD
-
SNN
21h 05m
2 stops
Multiple Airlines Logo
2:05 pm - 7:00 pm
SNN
-
IAD
33h 55m
1 stop
$794Multiple Airlines
Wed, Aug 19 - Wed, Aug 26
Multiple Airlines Logo
5:00 pm - 11:45 am
IAD
-
SNN
13h 45m
1 stop
Multiple Airlines Logo
2:05 pm - 3:10 pm
SNN
-
IAD
30h 05m
2 stops
$797Multiple Airlines
Tue, Aug 18 - Wed, Aug 26
Multiple Airlines Logo
8:25 pm - 1:40 pm
IAD
-
SNN
12h 15m
1 stop
Multiple Airlines Logo
2:05 pm - 3:10 pm
SNN
-
IAD
30h 05m
2 stops
$798Multiple Airlines
Tue, Sep 29 - Wed, Oct 14
Multiple Airlines Logo
8:25 pm - 1:40 pm
IAD
-
SNN
12h 15m
1 stop
Multiple Airlines Logo
7:30 am - 7:25 pm
SNN
-
IAD
16h 55m
2 stops
$802Multiple Airlines
Tue, Sep 29 - Tue, Oct 13
Multiple Airlines Logo
8:25 pm - 1:40 pm
IAD
-
SNN
12h 15m
1 stop
Multiple Airlines Logo
7:30 am - 7:35 pm
SNN
-
IAD
17h 05m
2 stops
$803Multiple Airlines
Tue, Sep 29 - Thu, Oct 15
Multiple Airlines Logo
8:25 pm - 1:40 pm
IAD
-
SNN
12h 15m
1 stop
Multiple Airlines Logo
12:15 pm - 7:00 pm
SNN
-
IAD
35h 45m
2 stops
$805Multiple Airlines
Wed, Sep 30 - Wed, Oct 14
Multiple Airlines Logo
11:20 pm - 8:30 pm
IAD
-
SNN
16h 10m
2 stops
Multiple Airlines Logo
2:05 pm - 7:00 pm
SNN
-
IAD
33h 55m
1 stop
$808Multiple Airlines
Wed, Sep 23 - Tue, Sep 29
Multiple Airlines Logo
5:00 pm - 11:45 am
IAD
-
SNN
13h 45m
1 stop
Multiple Airlines Logo
7:30 am - 7:35 pm
SNN
-
IAD
17h 05m
2 stops
$813Multiple Airlines
Tue, Sep 22 - Wed, Sep 30
Multiple Airlines Logo
8:25 pm - 1:40 pm
IAD
-
SNN
12h 15m
1 stop
Multiple Airlines Logo
7:30 am - 7:25 pm
SNN
-
IAD
16h 55m
2 stops
$814Multiple Airlines
Booking Insights

KAYAK's insights & trends for Dulles Intl to Shannon flights

Get data-powered insights and trends into flights from Dulles Intl to Shannon to help you find the cheapest flights, the best time to fly and much more.

Which airlines provide the cheapest flights from Washington Dulles Airport to Shannon?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 5 days.

In the past 5 days, the cheapest round-trip tickets from Washington Dulles Airport to Shannon were found on United Airlines ($819) and Delta ($830).

Which airlines fly non-stop between Washington, D.C. Dulles Intl Airport and Shannon?

Airline and price data is aggregated from results in KAYAK’s search results from the last 2 weeks for round-trip flights from Washington, D.C. Dulles Intl Airport to Shannon.

There is just one airline that flies from Washington, D.C. Dulles Intl Airport to Shannon direct and that is Delta. The best round-trip deal found from Delta for the route is $157.

Good to know

Cheapest flight$300
Flight from Washington Dulles 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
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Washington Dulles Airport to Shannon flights

  • What is the cheapest flight from Washington, D.C. Dulles Intl Airport to Shannon?

    In the last 5 days, the lowest price for a flight from Washington, D.C. Dulles Intl Airport to Shannon was $300 for a one-way ticket and $791 for a round-trip.

  • Do I need a passport to fly between Washington Dulles Airport and Shannon?

    Yes, you'll most likely have to show a valid passport before boarding the plane in Washington Dulles Airport and on arrival in Shannon.

  • Which airports will I be using when flying from Washington Dulles Airport to Shannon?

    When flying out of Washington Dulles Airport you will be using Washington, D.C. Dulles Intl. You will be landing at Shannon, also known as Shannon.

  • Which aircraft models fly most regularly from Washington Dulles Airport to Shannon?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Washington Dulles Airport to Shannon?

    oneworld, Star Alliance, and SkyTeam are the airline alliances operating flights between Washington Dulles Airport and Shannon, with oneworld being the most commonly used for this route.

  • Which is the best airline for flights from Washington, D.C. to Shannon, Delta or United Airlines?

    The two airlines most popular with KAYAK users for flights from Washington, D.C. to Shannon are Delta and United Airlines. With an average price for the route of $1,492 and an overall rating of 7.9, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $1,082 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from Washington Dulles Airport to Shannon?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Washington Dulles Airport to Shannon.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Washington Dulles Airport to Shannon?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Shannon from Washington Dulles Airport is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Washington Dulles Airport to Shannon?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Shannon with an airline and back to Washington Dulles Airport with another airline. Booking your flights between Washington Dulles Airport and SNN can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington Dulles Airport to Shannon?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Shannon from Washington Dulles Airport up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 3 airlines serving from Dulles Intl to Shannon

 
See real verified KAYAK customer reviews for airlines flying from Washington, D.C. to Shannon. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Dulles Intl to Shannon? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.9
DeltaOverall score based on 8405 reviews
8.5Crew
7.8Comfort
8.1Boarding
7.2Food
7.8Entertainment
Airline reviews

Flight attendants were great. Cheerful, upbeat and friendly. Jet, in particular, was fantastic.

10.0 ExcellentJOSEPH, Jun 2026
RIC - ATL
Read more Delta reviews

Flight attendants were great. Cheerful, upbeat and friendly. Jet, in particular, was fantastic.

I have Precheck. Flew HPN to DEN and return this past weekend. Delta didn't attach my Precheck number to this trip. So it was waiting in general line especially in Denver. Unavailable.

Original flight was delayed, then cancelled and the gate staff did not expedite rebooking. Also, no instructions were given that a ticket number was needed before being called to facilitate rebooking. This could have been much more organized.

Be on time? When not on time a circling for over an hour offer more than 1 bag of chips to the passengers? It was a 7 hour flight by the time we got done.

Five hour delays every hour, I wish it were all at once

Flight delayed four separate times. I’m now one hour hours late to landing.

worst flight ever from Delta, it got delayed and kept on delaying..

Should never have had to go to Detroit from Orlando back to Tennessee!

Got rerouted from a straight flight from Orlando to Atlanta to Knoxville to a flight from Orlando to Detroit to Knoxville! Seriously!! Flight delay out of Detroit! Long day for what should have been a pretty easy travel day!

Two delays on two separate planes with parts they could not easily find and replace.

Like: departed and arrived on time. Unlike: Food options for purchase allways bad, 1 of 2 of the crew members not very friendly at all. Seats and leg room aweful. At this point I am thinking on switching to AA.

Our flight was canceled same day and we were never informed. Had to pay more and worse seating on another airline.

Did not like that we couldn't complete check in on-line without providing pictures of our passports. Worry about identity theft. We had no delays and boarding was handled In an efficient manner.

Excellent! I got to Munich and was transferred to my Lufthansa flight quickly, in 15 to 20 minutes, so I did not miss my flight. However, I had checked my overhead bag at the boarding gate in Tampa. That got to Tunis the next day. That is to be expected.

WiFi didn’t exist , seats were super cramped, lights stayed on near my seat for a long time while others were dimmed, the food/trash/drink cart hit my shoulder at least a couple of times while moving, food options were down to just one option by the time it got to my row, the utensils were garbage (knife bent at a couple of places by the time I was done eating) the spoon was very flimsy plastic

Vegetarian selection could be better. Bread was too hard to chew.

Crew was friendly and competent. Food, wine, and entertainment were excellent except the raw tuna on the flight to Split. Recommend against serving that - at least as the only option. Many medical conditions do not allow people to eat raw fish.

United didn’t even try to hold the flight for me. They knew I had a tight connection and when I arrived at the gate less than 10 mins after final boarding the flight had already gone. The gate agent wasn’t even notified that I was on my way. She was told I wasn’t at the airport

Good quick flight on a small but comfortable plane. I'm 6'3 and had plenty of space.

The flight was delayed so we were dead tired, and after that the turbulence was horrible. I was very scared.

As always, most AA flights that we fly are almost ALWAYS delayed and that too multiple times. Very frustrating

The small flights with Valet Luggage has a poor service

Overall a good experience, however Wifi was not working on the flight.

THe flight was an hour late. You got us on the plan and we sat on the ground for 45 minutes with no information from the pilot whatsoever. Worst flight this year.

Going non stop to lax like I paid for. Not stopping in MCI for gas. Too long of delays

Human interaction. Thought there would be more service-even a smile would have been nice.

Incoming flight was delayed, delaying boarding. It then took 30 mins to take off. Took 20 mins to get to a gate because they changed the gate last minute, crew weren’t ready so there was no one staffed to work the jet bridge. Boarding was so disorganized as is usual with American because everyone just stands around the gate regardless of boarding group.

Delays with no explanation. It could have been handled better.

Flight delay for mechanical. Inbound arrived on time. No one said why mechanical delay.

Flight boarded, departed and landed on time. Excellent service from flight attendant in FIRST

Everything you need to know for your flight from Dulles Intl to Shannon

Information on your arrival and departure airports