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

Delta and British Airways can get you from Shannon, Clare to Washington, D.C. Dulles Intl Airport in just under 12h 50m. Your travel time can differ by up to 14h 50m. Airlines will cover a distance of 3296 mi. Both multi-stop and nonstop flights can be found to your destination and back.

In terms of precipitation, rainfall in Washington, D.C. Dulles Intl Airport ranges from 2.6 - 4.0 inches per month. May is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit Washington, D.C. Dulles Intl Airport when rainfall is around 2.6 in.

If weather is an important factor for your trip to Washington, D.C. Dulles Intl Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

What is the cheapest time of day to fly from SNN to IAD?

When flying from Shannon, Clare to Washington, D.C. Dulles Intl Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Most accurate provider : When it comes to deals on Shannon, Clare-Washington, D.C. Dulles Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Shannon, Clare-Washington, D.C. Dulles Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Shannon, Clare-Washington, D.C. Dulles Intl Airport flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on Shannon, Clare-Washington, D.C. Dulles Intl Airport flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Shannon, Clare-Washington, D.C. Dulles Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

What airport do you fly from for flights from Shannon to Washington, D.C. Dulles Intl?

Most people fly from Shannon (SNN) if they book a flight from Shannon to Washington, D.C. Dulles Intl. On average, Shannon has 0 outbound flights to Washington, D.C. Dulles Intl per day from 0 airlines. Shannon is conveniently located just 2.1 mi from Shannon’s city center.

Can I find deals for flights from Shannon to Dulles Intl that include hotel bookings?

Yes. In addition to deals on Shannon to Dulles Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Shannon to Dulles Intl?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Shannon to Dulles Intl.

Can I find deals for business class flights from Shannon to Dulles Intl?

Yes. Cheapflights offers flight deals from Shannon to Dulles Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$423+ Cheap Flights from Shannon to Washington, D.C. Dulles Intl Airport

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Cheap flight deals from Shannon to Dulles Intl

Cheapest

Best

Last-minute

One-way

Cheapest flights from Shannon to Dulles Intl
Explore the most affordable flight options available from Shannon to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 1, 2026.

Thu 9/101:05 pm -

1 stop27h 40m

Mon 9/146:26 pm -

1 stop11h 44m

Deal found 8/31

$620

Fri 9/111:05 pm -

1 stop27h 40m

Tue 9/156:26 pm -

1 stop11h 44m

Deal found 8/28

$634

Thu 10/14:50 pm -

2 stops31h 30m

Tue 10/68:30 pm -

2 stops18h 50m

Deal found 8/29

$659

Thu 9/109:55 am -

2 stops14h 25m

Mon 9/148:30 pm -

2 stops14h 40m

Deal found 8/31

$704

Thu 10/19:15 pm -

2 stops23h 20m

Mon 10/56:15 pm -

2 stops17h 25m

Deal found 8/29

$712

Fri 9/49:15 pm -

2 stops23h 20m

Tue 9/86:15 pm -

2 stops21h 05m

Deal found 8/28

$717

Fri 9/41:05 pm -

2 stops32h 37m

Tue 9/86:26 pm -

1 stop11h 44m

Deal found 8/28

$730

Fri 9/111:05 pm -

2 stops33h 06m

Tue 9/1512:25 pm -

1 stop17h 45m

Deal found 8/28

$735

Sat 9/127:30 am -

1 stop16h 45m

Fri 9/1810:05 pm -

1 stop14h 15m

Deal found 8/31

$760

Thu 10/17:30 am -

2 stops16h 20m

Tue 10/610:25 pm -

1 stop17h 10m

Deal found 8/29

$764

Best flights from Shannon to Dulles Intl
Discover carefully curated flight deals from Shannon to Dulles Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 1, 2026.

Fri 9/111:05 pm -

1 stop27h 40m

Tue 9/156:26 pm -

1 stop11h 44m

Deal found 8/28

$634

Fri 1/87:50 am -

1 stop12h 50m

Mon 1/116:05 pm -

1 stop12h 25m

Deal found 8/30

$696

Fri 9/111:05 pm -

2 stops33h 06m

Tue 9/1512:25 pm -

1 stop17h 45m

Deal found 8/28

$735

Thu 10/17:30 am -

1 stop16h 45m

Mon 10/56:15 pm -

2 stops17h 25m

Deal found 8/29

$735

Last-minute flights from Shannon to Dulles Intl
Discover last-minute flight deals from Shannon to Dulles Intl. Data last updated September 1, 2026 and is based on user searches.

Fri 9/49:15 pm -

2 stops23h 20m

Tue 9/86:15 pm -

2 stops21h 05m

Deal found 8/28

$717

Fri 9/41:05 pm -

2 stops32h 37m

Tue 9/86:26 pm -

1 stop11h 44m

Deal found 8/28

$730

Sun 9/69:30 am -

1 stop13h 07m

Sat 9/123:15 pm -

1 stop11h 15m

Deal found 8/30

$832

Thu 9/101:05 pm -

1 stop27h 40m

Mon 9/146:26 pm -

1 stop11h 44m

Deal found 8/31

$620

Thu 9/109:55 am -

2 stops14h 25m

Mon 9/148:30 pm -

2 stops14h 40m

Deal found 8/31

$704

Thu 9/102:30 pm -

2 stops26h 26m

Mon 9/1410:25 pm -

1 stop17h 10m

Deal found 8/31

$783

Fri 9/111:05 pm -

1 stop27h 40m

Tue 9/156:26 pm -

1 stop11h 44m

Deal found 8/28

$634

Fri 9/111:05 pm -

2 stops33h 06m

Tue 9/1512:25 pm -

1 stop17h 45m

Deal found 8/28

$735

Fri 9/112:30 pm -

2 stops26h 26m

Tue 9/1510:25 am -

2 stops14h 35m

Deal found 8/28

$774

Sat 9/127:30 am -

1 stop16h 45m

Fri 9/1810:05 pm -

1 stop14h 15m

Deal found 8/31

$760

Find flight deals from Shannon to Dulles Intl

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$634 (Delta)
One-way from	$423 (Kiwi.com)

Provider with most accurate pricing for Shannon-Washington, D.C. Dulles Intl flight deals.

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One-way flight from Shannon to Washington, D.C. Dulles Intl

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Cheapflights Fare Finder

Use the filters below to find and compare flights from Shannon to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

ShannonWashington, D.C.

SNN Shannon - IAD Washington, D.C. Dulles Intl

SNNIAD

Shannon

Fri 9/11

1:05 pm-11:45 am

1 stop27h 40m

Washington, D.C. Dulles Intl

Tue 9/15

6:26 pm-11:10 am

1 stop11h 44m

$634

Quickest round-trip

ShannonWashington, D.C.

SNN Shannon - IAD Washington, D.C. Dulles Intl

SNNIAD

Shannon

Fri 1/8

7:50 am-3:40 pm

1 stop12h 50m

Washington, D.C. Dulles Intl

Mon 1/11

6:05 pm-11:30 am

1 stop12h 25m

$696

ShannonWashington, D.C.

SNN Shannon - IAD Washington, D.C. Dulles Intl

SNNIAD

Shannon

Fri 9/11

1:05 pm-5:11 pm

2 stops33h 06m

Washington, D.C. Dulles Intl

Tue 9/15

12:25 pm-11:10 am

1 stop17h 45m

$735

ShannonWashington, D.C.

SNN Shannon - IAD Washington, D.C. Dulles Intl

SNNIAD

Shannon

Thu 10/1

7:30 am-7:15 pm

1 stop16h 45m

Washington, D.C. Dulles Intl

Mon 10/5

6:15 pm-4:40 pm

2 stops17h 25m

$735

Cheapest one-way

ShannonWashington, D.C.

SNN Shannon - IAD Washington, D.C. Dulles Intl

SNNIAD

Shannon

Mon 10/19

7:25 am-6:50 pm

2 stops40h 25m

$469

ShannonWashington, D.C.

SNN Shannon - IAD Washington, D.C. Dulles Intl

SNNIAD

Shannon

Sun 10/18

7:05 pm-7:25 pm

2 stops29h 20m

$474

ShannonWashington, D.C.

SNN Shannon - IAD Washington, D.C. Dulles Intl

SNNIAD

Shannon

Mon 10/19

9:15 pm-7:35 pm

2 stops27h 20m

$519

ShannonWashington, D.C.

SNN Shannon - IAD Washington, D.C. Dulles Intl

SNNIAD

Shannon

Thu 12/17

7:50 am-7:55 pm

1 stop17h 05m

$571

ShannonWashington, D.C.

SNN Shannon - IAD Washington, D.C. Dulles Intl

SNNIAD

Shannon

Mon 10/12

9:15 pm-3:10 pm

3 stops46h 55m

$620

Quickest one-way

ShannonWashington, D.C.

SNN Shannon - IAD Washington, D.C. Dulles Intl

SNNIAD

Shannon

Mon 10/19

12:30 pm-9:27 pm

1 stop13h 57m

$1,236

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/27

Sorted by cheapest first

Most accurate provider: When it comes to deals on Shannon, Clare-Washington, D.C. Dulles Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Shannon, Clare-Washington, D.C. Dulles Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Shannon, Clare-Washington, D.C. Dulles Intl Airport flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on Shannon, Clare-Washington, D.C. Dulles Intl Airport flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Shannon, Clare-Washington, D.C. Dulles Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Shannon to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Shannon with our price prediction graph.

SNN-IAD

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Related info for your journey

What airport do you fly from for flights from Shannon to Washington, D.C. Dulles Intl?
Most people fly from Shannon (SNN) if they book a flight from Shannon to Washington, D.C. Dulles Intl. On average, Shannon has 0 outbound flights to Washington, D.C. Dulles Intl per day from 0 airlines. Shannon is conveniently located just 2.1 mi from Shannon’s city center.
How long is the flight from Shannon, Clare to Washington, D.C. Dulles Intl Airport?
Delta and British Airways can get you from Shannon, Clare to Washington, D.C. Dulles Intl Airport in just under 12h 50m. Your travel time can differ by up to 14h 50m. Airlines will cover a distance of 3296 mi. Both multi-stop and nonstop flights can be found to your destination and back.
Can I find deals for flights from Shannon to Dulles Intl that include hotel bookings?
Yes. In addition to deals on Shannon to Dulles Intl flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Shannon to Dulles Intl?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Shannon to Dulles Intl.
Can I find deals for business class flights from Shannon to Dulles Intl?
Yes. Cheapflights offers flight deals from Shannon to Dulles Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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$423+ Cheap flights from Shannon (SNN) to Dulles Intl (IAD)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/19. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Shannon to Dulles Intl with Cheapflights

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Cheap flight deals from Shannon to Dulles Intl

Cheapest flights from Shannon to Dulles IntlExplore the most affordable flight options available from Shannon to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 1, 2026.

Explore the most affordable flight options available from Shannon to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 1, 2026.

Best flights from Shannon to Dulles IntlDiscover carefully curated flight deals from Shannon to Dulles Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 1, 2026.

Discover carefully curated flight deals from Shannon to Dulles Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 1, 2026.

Last-minute flights from Shannon to Dulles IntlDiscover last-minute flight deals from Shannon to Dulles Intl. Data last updated September 1, 2026 and is based on user searches.

Discover last-minute flight deals from Shannon to Dulles Intl. Data last updated September 1, 2026 and is based on user searches.

One-way flights from Shannon to Dulles IntlSearch for one-way flight options from Shannon to Dulles Intl. Find affordable one-way fares based on user searches. Data last updated September 1, 2026.

Search for one-way flight options from Shannon to Dulles Intl. Find affordable one-way fares based on user searches. Data last updated September 1, 2026.

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Use the filters below to find and compare flights from Shannon to Washington, D.C. Dulles Intl Airport that are best for you.

Best time to book a flight from Shannon to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Shannon with our price prediction graph.

Related info for your journey

What airport do you fly from for flights from Shannon to Washington, D.C. Dulles Intl?

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

Can I find deals for flights from Shannon to Dulles Intl that include hotel bookings?

How can I find direct flights from Shannon to Dulles Intl?

Can I find deals for business class flights from Shannon to Dulles Intl?

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Other flights to Dulles Intl

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Shannon and Dulles Intl flights

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Cheapest flights from Shannon to Dulles Intl
Explore the most affordable flight options available from Shannon to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 1, 2026.

Best flights from Shannon to Dulles Intl
Discover carefully curated flight deals from Shannon to Dulles Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 1, 2026.

Last-minute flights from Shannon to Dulles Intl
Discover last-minute flight deals from Shannon to Dulles Intl. Data last updated September 1, 2026 and is based on user searches.

One-way flights from Shannon to Dulles Intl
Search for one-way flight options from Shannon to Dulles Intl. Find affordable one-way fares based on user searches. Data last updated September 1, 2026.