What are the cheapest airlines flying from Washington, D.C. Reagan-National Airport to Shannon, Clare round-trip?

Cheapflights users have booked flights from Washington, D.C. Reagan-National Airport to Shannon, Clare round-trip from $478. Other airlines that can offer you cheap pricing are KLM, from $487, and United Airlines, from $514.

What are the cheapest airlines to fly from Washington, D.C. Reagan-National Airport to Shannon, Clare one-way?

The cheapest airlines for a one-way flight from Washington, D.C. Reagan-National Airport to Shannon, Clare are United Airlines ($399), Delta ($418), and American Airlines ($550).

What is the cheapest month to book a flight from Washington, D.C. Reagan-National Airport to Shannon, Clare?

Currently, February is the cheapest month in which you can book a flight from Washington, D.C. Reagan-National Airport to Shannon, Clare (average of $533). Flying from Washington, D.C. Reagan-National Airport to Shannon, Clare in June is currently the most expensive (average of $932). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest day to fly from Washington, D.C. Reagan-National Airport to Shannon, Clare?

Travelers seeking maximum savings on their Washington, D.C. Reagan-National Airport to Shannon, Clare flight should consider departing on Friday afternoons when fares are most often at their lowest. Wednesday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

In terms of precipitation, rainfall in Shannon, Clare ranges from 2.3 - 4.1 inches per month. October is typically the wettest month, when rainfall can reach 4.1 in. April is typically the driest time to visit Shannon, Clare when rainfall is around 2.3 in.

If weather is an important factor for your trip to Shannon, Clare, 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 60.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 42.8 F).

What is the cheapest day to fly round-trip from Washington, D.C. Reagan-National Airport to Shannon, Clare?

Sunday is generally a great day to depart. Flying on this day could help you save up to 52%.

What is the cheapest month to fly from Washington, D.C. Reagan-National Airport to Shannon, Clare?

May is one of the best times of the year to fly to Shannon, Clare from Washington, D.C. Reagan-National Airport. Prices for May average $875 per person but you can even find prices for as low as $570. The most expensive prices can be found in the month of June. Opting for a May flight can save you 31% on your journey compared to booking in June

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

It’s typically best to fly out from Washington, D.C. Reagan-National Airport to Shannon, Clare in the morning. Doing so could potentially save you 19% on the flight price compared to flying at noon, which is usually more expensive.

What airport do you fly into for flights to Shannon from Washington, D.C. Reagan-National?

Most people fly into Shannon (SNN) if they book a flight to Shannon from Washington, D.C. Reagan-National. On average, Shannon has 0 inbound flights from Washington, D.C. Reagan-National per day from 2 airlines. Shannon is conveniently located just 2.1 mi from Shannon’s city center.

Can I find deals for flights from Reagan-National to Shannon that include hotel bookings?

Yes. In addition to deals on Reagan-National to Shannon flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Reagan-National to Shannon?

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

Can I find deals for business class flights from Reagan-National to Shannon?

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

$399+ Flights from Washington, D.C. Reagan-National Airport to Shannon

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Cheap flight deals from Reagan-National to Shannon

Round-trip from	$478 (Delta)
One-way from	$399 (United Airlines)
Popular in	June
Cheapest in	May
Average price	$945

From Washington, D.C. Reagan-National to Shannon

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One-way flight from Washington, D.C. Reagan-National to Shannon

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Highest demand for flights based on searches. 7% potential increase in price ($66 potential increase over avg. RT price).

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Cheapest flight prices on average. 2% potential price decrease ($26 potential savings vs. average RT price).

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Average for round-trip flights in July 2025

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Find flight deals from Reagan-National to Shannon

Cheapest flights from Reagan-National to Shannon
Explore the most affordable flight options available from Reagan-National to Shannon. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2025.

Sun 8/34:51 pmDCA - SNN

1 stop13h 19mDelta

Tue 8/191:05 pmSNN - DCA

2 stops25h 06mDelta

Deal found 7/27

$478

Wed 9/101:00 pmDCA - SNN

1 stop13h 30mUnited Airlines

Wed 9/1712:30 pmSNN - DCA

1 stop10h 12mUnited Airlines

Deal found 7/27

$514

Wed 9/103:35 pmDCA - SNN

2 stops14h 45mAmerican Airlines

Wed 9/177:40 amSNN - DCA

2 stops15h 59mAmerican Airlines

Deal found 7/27

$539

Thu 9/117:30 pmDCA - SNN

2 stops34h 40mMultiple Airlines

Thu 9/181:05 pmSNN - DCA

2 stops14h 37mMultiple Airlines

Deal found 7/28

$566

Mon 8/115:00 pmDCA - SNN

1 stop13h 10mKLM

Mon 8/181:05 pmSNN - DCA

2 stops15h 41mKLM

Deal found 7/28

$591

Wed 9/1012:55 pmDCA - SNN

2 stops22h 15mAir Canada

Wed 9/177:40 amSNN - DCA

2 stops19h 11mAir Canada

Deal found 7/27

$682

Wed 9/101:30 pmDCA - SNN

2 stops16h 50mBritish Airways

Wed 9/172:35 pmSNN - DCA

1 stop13h 32mBritish Airways

Deal found 7/27

$706

Best flights from Reagan-National to Shannon
Discover carefully curated flight deals from Reagan-National to Shannon that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 29, 2025.

Sun 8/34:51 pmDCA - SNN

1 stop13h 19mDelta

Tue 8/191:05 pmSNN - DCA

2 stops25h 06mDelta

Deal found 7/27

$478

Mon 8/115:00 pmDCA - SNN

1 stop13h 10mKLM

Tue 8/191:05 pmSNN - DCA

1 stop15h 36mKLM

Deal found 7/28

$487

Wed 9/101:00 pmDCA - SNN

1 stop13h 30mUnited Airlines

Wed 9/1712:30 pmSNN - DCA

1 stop10h 12mUnited Airlines

Deal found 7/27

$514

Wed 9/103:35 pmDCA - SNN

2 stops14h 45mAmerican Airlines

Wed 9/177:40 amSNN - DCA

2 stops15h 59mAmerican Airlines

Deal found 7/27

$539

Wed 9/1012:55 pmDCA - SNN

2 stops22h 15mAir Canada

Wed 9/177:40 amSNN - DCA

2 stops19h 11mAir Canada

Deal found 7/27

$682

Tue 8/125:00 pmDCA - SNN

1 stop13h 10mMultiple Airlines

Mon 8/181:05 pmSNN - DCA

2 stops14h 54mMultiple Airlines

Deal found 7/28

$691

Wed 9/101:30 pmDCA - SNN

2 stops16h 50mBritish Airways

Wed 9/172:35 pmSNN - DCA

1 stop13h 32mBritish Airways

Deal found 7/27

$706

Last-minute flights from Reagan-National to Shannon
Discover last-minute flight deals from Reagan-National to Shannon. Data last updated July 29, 2025 and is based on user searches.

Sat 8/26:30 amDCA - SNN

1 stop18h 25mJetBlue

Mon 8/42:35 pmSNN - DCA

1 stop13h 24mJetBlue

Deal found 7/29

$8,555

Sun 8/34:51 pmDCA - SNN

1 stop13h 19mDelta

Tue 8/191:05 pmSNN - DCA

2 stops25h 06mDelta

Deal found 7/27

$478

Sun 8/35:40 pmDCA - SNN

2 stops12h 30mDelta

Tue 8/191:05 pmSNN - DCA

2 stops15h 41mDelta

Deal found 7/27

$478

Wed 8/62:00 pmDCA - SNN

1 stop12h 30mUnited Airlines

Thu 8/149:30 amSNN - DCA

1 stop14h 32mUnited Airlines

Deal found 7/28

$526

Thu 8/74:51 pmDCA - SNN

1 stop13h 19mKLM

Thu 8/141:05 pmSNN - DCA

2 stops15h 41mKLM

Deal found 7/28

$854

Thu 8/73:40 pmDCA - SNN

2 stops14h 30mAir France

Wed 8/131:05 pmSNN - DCA

2 stops14h 54mAir France

Deal found 7/28

$1,392

Sun 8/101:41 pmDCA - SNN

2 stops16h 29mAir France

Mon 8/181:05 pmSNN - DCA

2 stops14h 54mAir France

Deal found 7/28

$815

Mon 8/115:00 pmDCA - SNN

1 stop13h 10mKLM

Tue 8/191:05 pmSNN - DCA

1 stop15h 36mKLM

Deal found 7/28

$487

Tue 8/125:00 pmDCA - SNN

1 stop13h 10mMultiple Airlines

Mon 8/181:05 pmSNN - DCA

2 stops14h 54mMultiple Airlines

Deal found 7/28

$691

Tue 8/124:30 pmDCA - SNN

2 stops18h 40mAir Canada

Mon 8/189:15 pmSNN - DCA

2 stops29h 33mAir Canada

Deal found 7/28

$1,045

Mon 8/255:30 pmDCA - SNN

2 stops12h 50mAmerican Airlines

Mon 9/17:40 amSNN - DCA

2 stops17h 19mAmerican Airlines

Deal found 7/28

$599

One-way flights from Reagan-National to Shannon
Search for one-way flight options from Reagan-National to Shannon. Find affordable one-way fares based on user searches. Data last updated July 29, 2025.

Wed 8/67:25 amDCA - SNN

1 stop19h 05mUnited Airlines

Deal found 7/27

$399

Tue 9/236:59 amDCA - SNN

2 stops32h 21mMultiple Airlines

Deal found 7/28

$417

Wed 8/63:40 pmDCA - SNN

2 stops14h 30mDelta

Deal found 7/27

$418

Thu 10/23:35 pmDCA - SNN

2 stops14h 45mAmerican Airlines

Deal found 7/27

$550

Thu 10/27:23 pmDCA - SNN

2 stops15h 47mBritish Airways

Deal found 7/27

$638

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Shannon

DCA - SNN

DCASNN

Washington, D.C. Reagan-National

Sun 8/3

4:51 pm-11:10 am

1 stop13h 19m

Shannon

Tue 8/19

1:05 pm-9:11 am

2 stops25h 06m

$478

Washington, D.C.Shannon

DCA - SNN

DCASNN

Washington, D.C. Reagan-National

Mon 8/11

5:00 pm-11:10 am

1 stop13h 10m

Shannon

Tue 8/19

1:05 pm-11:41 pm

1 stop15h 36m

$487

Washington, D.C.Shannon

DCA - SNN

DCASNN

Washington, D.C. Reagan-National

Wed 9/10

1:00 pm-7:30 am

1 stop13h 30m

Shannon

Wed 9/17

12:30 pm-5:42 pm

1 stop10h 12m

$514

Washington, D.C.Shannon

DCA - SNN

DCASNN

Washington, D.C. Reagan-National

Wed 9/10

3:35 pm-11:20 am

2 stops14h 45m

Shannon

Wed 9/17

7:40 am-6:39 pm

2 stops15h 59m

$539

Washington, D.C.Shannon

DCA - SNN

DCASNN

Washington, D.C. Reagan-National

Wed 9/10

12:55 pm-4:10 pm

2 stops22h 15m

Shannon

Wed 9/17

7:40 am-9:51 pm

2 stops19h 11m

$682

Washington, D.C.Shannon

DCA - SNN

DCASNN

Washington, D.C. Reagan-National

Tue 8/12

5:00 pm-11:10 am

1 stop13h 10m

Shannon

Mon 8/18

1:05 pm-10:59 pm

2 stops14h 54m

$691

Washington, D.C.Shannon

DCA - SNN

DCASNN

Washington, D.C. Reagan-National

Wed 9/10

1:30 pm-11:20 am

2 stops16h 50m

Shannon

Wed 9/17

2:35 pm-11:07 pm

1 stop13h 32m

$706

Washington, D.C.Shannon

DCA - SNN

DCASNN

Washington, D.C. Reagan-National

Wed 8/6

7:25 am-7:30 am

1 stop19h 05m

$399

Washington, D.C.Shannon

DCA - SNN

DCASNN

Washington, D.C. Reagan-National

Tue 9/23

6:59 am-8:20 pm

2 stops32h 21m

$417

Washington, D.C.Shannon

DCA - SNN

DCASNN

Washington, D.C. Reagan-National

Wed 8/6

3:40 pm-11:10 am

2 stops14h 30m

$418

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/27

Showing 1-10 of 12 results

Best time to book a flight from Reagan-National to Shannon

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

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.

Reviews of airlines servicing Shannon

Read through reviews of airlines operating flights from Washington, D.C. Reagan-National Airport to Shannon, such as Delta, KLM, and United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very good

7,979 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Delta

8.0

Very good

7,979 reviews

Delta

8.0

Very good

7,979 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

KLM

7.8

Good

1,383 reviews

Delta

8.0

Very good

7,979 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

United Airlines

7.4

Good

8,896 reviews

Delta

8.0

Very good

7,979 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

American Airlines

7.2

Good

10,000 reviews

Delta

8.0

Very good

7,979 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Air Canada

7.1

Good

9,826 reviews

Delta

8.0

Very good

7,979 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

What airport do you fly into for flights to Shannon from Washington, D.C. Reagan-National?
Most people fly into Shannon (SNN) if they book a flight to Shannon from Washington, D.C. Reagan-National. On average, Shannon has 0 inbound flights from Washington, D.C. Reagan-National per day from 2 airlines. Shannon is conveniently located just 2.1 mi from Shannon’s city center.
What are the cheapest airlines flying from Washington, D.C. Reagan-National Airport to Shannon, Clare round-trip?
Cheapflights users have booked flights from Washington, D.C. Reagan-National Airport to Shannon, Clare round-trip from $478. Other airlines that can offer you cheap pricing are KLM, from $487, and United Airlines, from $514.
What are the cheapest airlines to fly from Washington, D.C. Reagan-National Airport to Shannon, Clare one-way?
The cheapest airlines for a one-way flight from Washington, D.C. Reagan-National Airport to Shannon, Clare are United Airlines ($399), Delta ($418), and American Airlines ($550).
Can I find deals for flights from Reagan-National to Shannon that include hotel bookings?
Yes. In addition to deals on Reagan-National to Shannon flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Reagan-National to Shannon?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Reagan-National to Shannon.
Can I find deals for business class flights from Reagan-National to Shannon?
Yes. Cheapflights offers flight deals from Reagan-National to Shannon by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Washington, D.C. Reagan-National Airport to Shannon, Clare?
Currently, February is the cheapest month in which you can book a flight from Washington, D.C. Reagan-National Airport to Shannon, Clare (average of $533). Flying from Washington, D.C. Reagan-National Airport to Shannon, Clare in June is currently the most expensive (average of $932). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Ennis

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Top 2 airlines flying from Reagan-National to Shannon

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	Cheapest$685	Average$899	FlexibilityNo cancel fee	On-time69%
American Airlines	Cheapest$790	Average$996	FlexibilityNo cancel fee	On-time71%

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$399+ Cheap flights from Reagan-National (DCA) to Shannon (SNN)

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 8/6. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Reagan-National to Shannon with Cheapflights

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2. Select your favorite providers

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Cheap flight deals from Reagan-National to Shannon

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Reagan-National to Shannon

Cheapest flights from Reagan-National to ShannonExplore the most affordable flight options available from Reagan-National to Shannon. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2025.

Explore the most affordable flight options available from Reagan-National to Shannon. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2025.

Cheapflights Fare Finder

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

Best time to book a flight from Reagan-National to Shannon

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

Reviews of airlines servicing Shannon

Read through reviews of airlines operating flights from Washington, D.C. Reagan-National Airport to Shannon, such as Delta, KLM, and United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Reagan-National to Shannon. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What airport do you fly into for flights to Shannon from Washington, D.C. Reagan-National?

What are the cheapest airlines flying from Washington, D.C. Reagan-National Airport to Shannon, Clare round-trip?

What are the cheapest airlines to fly from Washington, D.C. Reagan-National Airport to Shannon, Clare one-way?

Can I find deals for flights from Reagan-National to Shannon that include hotel bookings?

How can I find direct flights from Reagan-National to Shannon?

Can I find deals for business class flights from Reagan-National to Shannon?

What is the cheapest month to book a flight from Washington, D.C. Reagan-National Airport to Shannon, Clare?

Traveling to a place near Shannon?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Reagan-National to Shannon

See prices for flight routes from nearby airports that may be better suited for you.

Top 2 airlines flying from Reagan-National to Shannon

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Cheapest flights from Reagan-National to Shannon
Explore the most affordable flight options available from Reagan-National to Shannon. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2025.