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Washington, D.C.

$313+ Cheap flights from Dublin (DUB) to Washington, D.C. (WAS)

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 2/15. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — WAS
Jan 21 — Jan 281
Wed 1/21
Wed 1/28
1 adult, Economy
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1. Tell us where you want to go

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Cheapflights Tip: The best prices from Dublin to Washington, D.C. are usually found in February or January, booked 78 days in advance, depart on a Monday or Wednesday and return on a Tuesday

Cheap flight deals from Dublin to Washington, D.C.

Cheapest flights from Dublin to Washington, D.C.
Explore the most affordable flight options available from Dublin to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 22, 2025.

This Finnair deal was found by Cheapflights users on 12/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/2611:30 amDUB - DCA
1 stop10h 05mMultiple Airlines
Thu 1/14:59 pmDCA - DUB
1 stop10h 41mMultiple Airlines
Deal found 12/19$549
This deal was found by Cheapflights users on 12/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/2312:05 pmDUB - IAD
Nonstop8h 15mUnited Airlines
Mon 12/295:10 pmIAD - DUB
1 stop9h 20mUnited Airlines
Deal found 12/20$671
This TravelUp deal was found by Cheapflights users on 12/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure TravelUp is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/268:50 amDUB - IAD
1 stop11h 45mBritish Airways
Wed 12/319:45 pmIAD - DUB
1 stop13h 50mBritish Airways
Deal found 12/20$699
This United Airlines deal was found by Cheapflights users on 12/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/269:00 amDUB - IAD
1 stop16h 26mUnited Airlines
Thu 1/110:20 pmIAD - DUB
Nonstop7h 00mUnited Airlines
Deal found 12/19$703
This United Airlines deal was found by Cheapflights users on 12/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/269:00 amDUB - IAD
2 stops17h 21mUnited Airlines
Sat 1/310:33 pmIAD - DUB
1 stop28h 37mUnited Airlines
Deal found 12/19$709
This Finnair deal was found by Cheapflights users on 12/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/2611:30 amDUB - DCA
1 stop10h 05mMultiple Airlines
Wed 12/311:44 pmDCA - DUB
1 stop13h 56mMultiple Airlines
Deal found 12/20$711
This United Airlines deal was found by Cheapflights users on 12/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/2710:40 amDUB - IAD
1 stop18h 35mUnited Airlines
Sat 1/310:20 pmIAD - DUB
Nonstop7h 00mUnited Airlines
Deal found 12/20$713
This United Airlines deal was found by Cheapflights users on 12/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/269:00 amDUB - BWI
2 stops17h 26mUnited Airlines
Thu 1/16:15 amBWI - DUB
2 stops20h 15mUnited Airlines
Deal found 12/19$717
This KLM deal was found by Cheapflights users on 12/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/301:25 pmDUB - IAD
1 stop31h 40mMultiple Airlines
Tue 1/136:50 pmIAD - DUB
1 stop15h 55mMultiple Airlines
Deal found 12/20$729
This Air Canada deal was found by Cheapflights users on 12/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/269:00 amDUB - IAD
2 stops17h 25mAir Canada
Thu 1/19:45 amIAD - DUB
2 stops16h 25mAir Canada
Deal found 12/19$753
This United Airlines deal was found by Cheapflights users on 12/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/269:30 amDUB - DCA
1 stop10h 59mUnited Airlines
Thu 1/112:59 pmDCA - DUB
2 stops13h 11mUnited Airlines
Deal found 12/19$769
This United Airlines deal was found by Cheapflights users on 12/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/269:00 amDUB - DCA
2 stops19h 59mUnited Airlines
Wed 12/311:00 pmDCA - DUB
1 stop14h 10mUnited Airlines
Deal found 12/20$786

Find flight deals from Dublin to Washington, D.C.

Discover tips and strategies to find the most affordable flight options for your journey from Dublin (DUB) to Washington, D.C. (WAS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated December 22, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$419
(Flightnetwork)

One-way from

$313
(Mytrip)

Popular in

August

Cheapest in

February

Average price

$616

Good round-trip deal

$678 or less

Good one-way deal

$486 or less
Provider with most accurate pricing for Dublin-Washington, D.C. (WAS) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Dublin-Washington, D.C. (WAS) flights.
Search Deals
From Dublin to Washington, D.C. (WAS)
Search Deals
One-way flight from Dublin to Washington, D.C. (WAS)
Search Deals
Highest demand for flights based on searches. 13% potential increase in price ($87 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($20 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals
Price to beat on a round-trip flight from Dublin to Washington, D.C. (WAS).
Search Deals
Price to beat on a one-way flight from Dublin to Washington, D.C. (WAS).
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Dublin to Washington, D.C. that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 22, 2025.
Use the filters below to find and compare flights from Dublin to Washington, D.C. that are best for you.

Fly from

Dublin

Fly to

Washington, D.C.

Route

Depart

Return

Price

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Fri 1/16

11:30 am-6:30 pm

1 stop12h 00m

Washington, D.C. Dulles Intl

Sun 1/25

7:40 pm-10:15 am

1 stop9h 35m

$422

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Mon 2/2

12:15 pm-3:35 pm

Nonstop8h 20m

Washington, D.C. Dulles Intl

Mon 2/9

5:05 pm-4:55 am

Nonstop6h 50m

$477

DublinBaltimore

DUB - BWI

DUBBWI

Dublin

Fri 2/13

4:00 pm-6:45 pm

1 stop31h 45m

Baltimore/Washington

Tue 2/17

6:37 pm-5:00 pm

2 stops17h 23m

$486

DublinBaltimore

DUB - BWI

DUBBWI

Dublin

Fri 2/13

8:35 pm-6:45 pm

1 stop27h 10m

Baltimore/Washington

Tue 2/17

8:35 pm-7:40 pm

1 stop18h 05m

$489

DublinBaltimore

DUB - BWI

DUBBWI

Dublin

Wed 3/4

8:40 pm-6:45 pm

1 stop27h 05m

Baltimore/Washington

Wed 3/11

9:35 pm-7:55 am

1 stop30h 20m

$489

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Fri 2/27

3:00 pm-3:35 pm

1 stop29h 35m

Washington, D.C. Dulles Intl

Mon 3/2

6:20 pm-7:55 am

1 stop32h 35m

$489

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Thu 2/12

10:30 am-7:55 pm

1 stop14h 25m

Washington, D.C. Dulles Intl

Sat 2/21

6:20 pm-7:55 am

1 stop32h 35m

$490

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Fri 1/16

8:50 am-3:35 pm

1 stop11h 45m

Washington, D.C. Dulles Intl

Fri 1/23

9:45 pm-2:20 pm

1 stop11h 35m

$490

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Wed 5/13

12:45 pm-8:20 pm

1 stop12h 35m

Washington, D.C. Dulles Intl

Mon 5/25

10:25 pm-2:40 pm

1 stop11h 15m

$494

DublinWashington, D.C.

DUB - DCA

DUBDCA

Dublin

Sat 1/24

8:55 am-8:59 pm

2 stops17h 04m

Washington, D.C. Reagan-National

Mon 2/9

12:10 pm-9:50 am

2 stops16h 40m

$494

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/20

Showing 1-10 of 60 results
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Compare providers for flights from Dublin to Washington, D.C.

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Dublin to Washington, D.C. in December.
ProviderPrice AccuracyTrust Score*
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
AranGrantPrice Accuracy2 starsTrust Score*3 stars
OvagoPrice Accuracy2 starsTrust Score*2 stars
SmartFaresPrice Accuracy1 starTrust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

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

Have a flexible travel schedule? Discover the best time to fly to Washington, D.C. from Dublin 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.

Cheapflights Insights

Everything you need to know about your flight from Dublin to Washington, D.C.

How far ahead should I book a flight from Dublin to Washington, D.C.?

Use this chart to determine the optimal time to book a round-trip flight from Dublin to Washington, D.C.. Price data was last updated on December 19, 2025.

To ensure you get the cheapest price possible for a flight from Dublin to Washington, D.C., you should look to book at least 78 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Dublin to Washington, D.C.?

Currently, February is the cheapest month in which you can book a flight from Dublin to Washington, D.C. (average of $284). Flying from Dublin to Washington, D.C. in July is currently the most expensive (average of $507). 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 time of day to fly from DUB to WAS?

Find hourly flight availability from Dublin to Washington, D.C.. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 22, 2025.

It’s typically best to fly out from Dublin to Washington, D.C. in the evening. Doing so could potentially save you 11% on the flight price compared to flying at noon, which is usually more expensive.

How much does it cost to fly round-trip from Dublin to Washington, D.C.?

How often are flights from Dublin to Washington, D.C. delayed?

About 14% of weekly flights between Dublin and Washington, D.C. have experienced delays in the past year, with the average delay time being 152 minutes.

What is the most punctual flight time for Dublin to Washington, D.C. flights?

Historically, flights departing in the early afternoon are less likely to be delayed, whereas flights leaving in the morning tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Sunday tends to have the lowest number of delays on this route, whereas Friday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on Dublin to Washington, D.C. flights?

Over the last year, Aer Lingus have had the lowest number of delays on this route, with just 14% of flights being delayed.

The best insider tips for Dublin to Washington, D.C. flights

AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your Dublin to Washington, D.C. trip
Airlines
Aer Lingus

Pre-clear US immigration in Dublin, saving time upon arrival in the US.


Aer Lingus offers complimentary meals and drinks on all transatlantic flights, enhancing your travel experience.

Read more about Aer LingusBy Evie Carrick
United Airlines

Polaris passengers enjoy lie-flat seats and access to exclusive lounges with dining and relaxation areas.


Economy Plus offers extra legroom and priority boarding, ideal for added comfort on long-haul flights.

Read more about United AirlinesBy Harriet Baskas
Airports
DUB

For US travelers, preclearance at DUB can be time-consuming. Allow 30-45 minutes after security for this process before heading to your gate.

Read more about DUBBy James March
IAD

The Silver Line Metro now connects IAD to Washington, D.C. in under 40 minutes, offering a cost-effective way to reach the city.

Read more about IADBy Ramsey Qubein
Our travel experts
Evie Carrick

Evie Carrick

Expert on Aer Lingus

Evie Carrick

Evie Carrick

Evie Carrick is a writer and editor who has lived in five countries and traveled to over 50, with extensive experience flying around the world. She was born in Colorado, but has spent time flying to both coasts to visit family. She writes regularly for Travel + Leisure, BuzzFeed, and SKI and recently published seven travel journals with Simon & Schuster.

Read more
Harriet Baskas

Harriet Baskas

Expert on United Airlines

Harriet Baskas

Harriet Baskas

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Read more
James March

James March

Expert on DUB

James March

James March

For UK-based James March, nothing beats the thrill and chaos of arriving in a new city for the first time, and he tries to put that feeling into his writing and inspire others to travel too. From Birmingham to Blackpool and Leicester to Liverpool, James has reviewed hotels, written narratives and created guides for those who love to travel.

Read more
Ramsey Qubein

Ramsey Qubein

Expert on IAD

Ramsey Qubein

Ramsey Qubein

An avid traveler and aviation expert who has visited 173 countries, all 50 states and seven continents, Ramsey Qubein flies nearly 400,000 miles a year. As a North Carolina-based freelance journalist for publications including Conde Nast Traveler, Forbes, USA Today and Bloomberg among others, he explores the latest trends in aviation, hospitality, cruises and business.

Read more

Reviews of airlines servicing Washington, D.C.

Get insights into the airlines that provide service to Washington, D.C.. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Washington, D.C.. Reviews last updated December 22, 2025.
Peruse reviews from past customers who have flown with United Airlines and Aer Lingus from Dublin to Washington, D.C. to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,102 reviews

Boarding

7.7

Comfort

7.3

Food

6.6

Overall

7.4

Crew

8.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Michelle,Dec 2025

DEN - MKE

I liked that the plane waited 5 minutes for a family whose incoming plane was late. This was the last flight of the day to MKE. Flight attendants actually checked in throughout the flight. Although, not really friendly. Happy to see screens on seat backs again. This is my first time not flying first class in over 10 years. It was economy plus.
United Airlines
7.4
Good
9,102 reviews
United Airlines
7.4
Good
9,102 reviews

Boarding

7.7

Comfort

7.3

Food

6.6

Overall

7.4

Crew

8.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Michelle,Dec 2025

DEN - MKE

I liked that the plane waited 5 minutes for a family whose incoming plane was late. This was the last flight of the day to MKE. Flight attendants actually checked in throughout the flight. Although, not really friendly. Happy to see screens on seat backs again. This is my first time not flying first class in over 10 years. It was economy plus.
Aer Lingus
7.2
Good
1,408 reviews
United Airlines
7.4
Good
9,102 reviews

Boarding

7.7

Comfort

7.3

Food

6.6

Overall

7.4

Crew

8.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Michelle,Dec 2025

DEN - MKE

I liked that the plane waited 5 minutes for a family whose incoming plane was late. This was the last flight of the day to MKE. Flight attendants actually checked in throughout the flight. Although, not really friendly. Happy to see screens on seat backs again. This is my first time not flying first class in over 10 years. It was economy plus.

Related info for your journey

Find useful and relevant information for your journey from Dublin to Washington, D.C.. 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 from for flights from Dublin to Washington, D.C.?

    Most people fly from Dublin (DUB) if they book a flight from Dublin to Washington, D.C.. On average, Dublin has 9 outbound flights to Washington, D.C. per day from 3 airlines. Dublin is conveniently located just 5.7 mi from Dublin’s city center.

  • How long is the flight from Dublin to Washington, D.C.?

    A quick flight from Dublin to Washington, D.C. can take about 8h 20m. Icelandair provides one of the quickest options available for as low as $477. The distance from Dublin to Washington, D.C. is about 3393 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines flying from Dublin to Washington, D.C. round-trip?

    Flying on Icelandair is currently your cheapest option to Washington, D.C., with prices starting at $425. Additional round-trip tickets that might be worth considering are offered by Aer Lingus and United Airlines, with the lowest prices starting at $454 and $643, respectively. Icelandair is 26% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the cheapest airlines to fly from Dublin to Washington, D.C. one-way?

    To fly one-way, consider booking your trip with Icelandair, which is currently one of the cheapest options available, starting at $337. Aer Lingus flights start at $381 while deals on American Airlines start at $494 one-way.

  • What are the most popular routes from Dublin to Washington, D.C.?

    While some choose either Dublin - Baltimore/Washington or Dublin - Washington, D.C. Reagan-National, Dublin - Washington, D.C. Dulles Intl is the most popular route from Dublin to Washington, D.C..

  • What are the most reliable airlines from Dublin to Washington, D.C.?

    The top 3 most reliable airlines when flying from Dublin to Washington, D.C. are SWISS (100%), Air Canada (94%) and United Airlines (94%).

  • What are the cheapest flights from Dublin to Washington, D.C.?

    Looking for the cheapest flight from Dublin to Washington, D.C.? While on average our users pay $993, our data indicates the cheapest price to be $444. The most popular route (Dublin - Washington, D.C. Dulles Intl), is priced around $421.

  • Can I find deals for flights from Dublin to Washington, D.C. that include hotel bookings?

    Yes. In addition to deals on Dublin to Washington, D.C. flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Dublin to Washington, D.C.?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Dublin to Washington, D.C..

  • Can I find deals for business class flights from Dublin to Washington, D.C.?

    Yes. Cheapflights offers flight deals from Dublin to Washington, D.C. 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 Dublin to Washington, D.C.?

    Currently, February is the cheapest month in which you can book a flight from Dublin to Washington, D.C. (average of $284). Flying from Dublin to Washington, D.C. in July is currently the most expensive (average of $507). 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

Traveling to a place near Washington, D.C.?

Book flights to Washington, D.C. if you plan to visit one of these locations
Alexandria
Woodbridge
Tysons
Arlington
Owings Mills
Springfield
Hanover
Silver Spring
Fredericksburg
Linthicum Heights
Rockville
Laurel
Towson
Manassas
National Harbor
Bowie
Largo
McLean
Clinton
Cordova

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Dublin to Washington, D.C.

See prices for flight routes from nearby airports that may be better suited for you.
Dublin to Dulles Intl flights
Dublin to Reagan-National flights
Shannon to Dulles Intl flights

Top 3 airlines flying from Dublin to Washington, D.C.

Discover the top 3 airlines that operate flights from Dublin to Washington, D.C.. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 22, 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$425Average$603FlexibilityNo cancel feeOn-time76%
Aer LingusCheapest$454Average$604FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$643Average$808FlexibilityNo cancel feeOn-time69%

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