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$237+ Cheap flights from O'Hare Intl (ORD) to Dublin (DUB)

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 1/22. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — DUB
nov. 26 — déc. 31
mer. 11/26
mer. 12/3
1 adult, Economy
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Cheapflights Tip: The best prices from Chicago O'Hare Intl to Dublin are usually found in January or February, booked 20 days in advance, depart on a Tuesday or Monday and return on a Sunday

Cheap flight deals from O'Hare Intl to Dublin

Discover tips and strategies to find the most affordable flight options for your journey from O'Hare Intl (ORD) to Dublin (DUB). 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 octobre 27, 2025.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$470
(Air Canada)

One-way from

$237
(Kiwi.com)

Popular in

June

Cheapest in

January

Average price

$652

Good round-trip deal

$599 or less

Good one-way deal

$445 or less
Provider with most accurate pricing for Chicago O'Hare Intl-Dublin flight deals.
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Provider most trusted by Cheapflights users for Chicago O'Hare Intl-Dublin flights.
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From Chicago O'Hare Intl to Dublin
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One-way flight from Chicago O'Hare Intl to Dublin
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Highest demand for flights based on searches. 15% potential increase in price ($131 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($19 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Price to beat on a round-trip flight from Chicago O'Hare Intl to Dublin.
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Price to beat on a one-way flight from Chicago O'Hare Intl to Dublin.
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Find flight deals from O'Hare Intl to Dublin

Cheapest flights from O'Hare Intl to Dublin
Explore the most affordable flight options available from O'Hare Intl to Dublin. Find the lowest fares from popular airlines and budget airlines, with prices last updated on octobre 27, 2025.

This Air Canada deal was found by Cheapflights users on 10/26. 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.
sam. 11/89:20 pmORD - DUB
1 stop27h 50mAir Canada
ven. 11/219:00 amDUB - ORD
1 stop15h 39mAir Canada
Deal found 10/26$470
This FlightHub deal was found by Cheapflights users on 10/27. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer. 11/267:20 pmORD - DUB
1 stop34h 25mScandinavian Airlines
mar. 12/212:30 pmDUB - ORD
1 stop34h 15mScandinavian Airlines
Deal found 10/27$471
This CheapOair deal was found by Cheapflights users on 10/26. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dim. 11/167:40 pmORD - DUB
Nonstop7h 20mAer Lingus
sam. 11/223:20 pmDUB - ORD
Nonstop8h 35mAer Lingus
Deal found 10/26$472
This United Airlines deal was found by Cheapflights users on 10/26. 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.
mer. 12/106:15 pmORD - DUB
1 stop10h 05mUnited Airlines
mar. 12/1610:40 amDUB - ORD
Nonstop8h 50mUnited Airlines
Deal found 10/26$473
This KLM deal was found by Cheapflights users on 10/25. 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.
mar. 11/181:14 pmORD - DUB
2 stops13h 31mKLM
dim. 11/239:45 amDUB - ORD
1 stop15h 07mKLM
Deal found 10/25$474
This United Airlines deal was found by Cheapflights users on 10/26. 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.
sam. 12/66:28 pmORD - DUB
1 stop30h 42mUnited Airlines
mar. 12/1610:40 amDUB - ORD
Nonstop8h 50mUnited Airlines
Deal found 10/26$475
This United Airlines deal was found by Cheapflights users on 10/27. 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.
lun. 10/2712:00 pmORD - DUB
1 stop14h 30mUnited Airlines
mar. 11/49:30 amDUB - ORD
1 stop11h 10mUnited Airlines
Deal found 10/27$476
This Kiwi.com deal was found by Cheapflights users on 10/25. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jeu. 11/139:50 pmORD - DUB
1 stop13h 20mLufthansa
mer. 11/195:10 amDUB - ORD
1 stop14h 00mLufthansa
Deal found 10/25$478
This United Airlines deal was found by Cheapflights users on 10/27. 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.
mar. 10/287:35 pmORD - DUB
Nonstop7h 35mUnited Airlines
mar. 11/111:35 pmDUB - ORD
1 stop12h 32mUnited Airlines
Deal found 10/27$479
This American Airlines deal was found by Cheapflights users on 10/26. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 10/274:52 pmORD - DUB
1 stop10h 48mAmerican Airlines
lun. 11/310:45 amDUB - ORD
1 stop12h 15mAmerican Airlines
Deal found 10/26$481
This KAYAK deal was found by Cheapflights users on 10/25. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer. 11/1910:35 pmORD - DUB
1 stop18h 10mLufthansa
mar. 11/255:00 amDUB - ORD
1 stop14h 10mLufthansa
Deal found 10/25$482
This Finnair deal was found by Cheapflights users on 10/27. 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.
ven. 11/74:50 pmORD - DUB
1 stop9h 50mMultiple Airlines
ven. 11/1411:30 amDUB - ORD
1 stop12h 14mMultiple Airlines
Deal found 10/27$483

Cheapflights Fare Finder

 
Customize your flight search to find flights from O'Hare Intl to Dublin 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 octobre 27, 2025.
Use the filters below to find and compare flights from Chicago O'Hare Intl Airport to Dublin that are best for you.

Fly from

O'Hare Intl

Fly to

Dublin

Route

Depart

Return

Price

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

mer. 12/3

6:35 pm-8:10 am

Nonstop7h 35m

Dublin

mer. 12/10

10:40 am-1:30 pm

Nonstop8h 50m

$470

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

mer. 12/3

7:00 am-7:50 am

2 stops18h 50m

Dublin

mar. 12/9

6:00 am-4:57 pm

2 stops16h 57m

$472

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

mer. 4/22

8:15 pm-9:45 am

Nonstop7h 30m

Dublin

jeu. 4/30

11:35 am-1:40 pm

Nonstop8h 05m

$473

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

mer. 3/11

4:30 pm-9:55 am

1 stop12h 25m

Dublin

mer. 3/18

10:40 am-2:30 pm

Nonstop8h 50m

$473

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

dim. 3/1

6:30 pm-10:15 am

1 stop9h 45m

Dublin

jeu. 3/5

11:30 am-5:20 pm

1 stop11h 50m

$479

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

ven. 11/7

2:50 pm-8:40 am

1 stop11h 50m

Dublin

ven. 11/14

11:30 am-5:44 pm

1 stop12h 14m

$483

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

sam. 12/6

8:15 pm-7:10 am

1 stop28h 55m

Dublin

mer. 12/17

9:30 am-2:40 pm

1 stop11h 10m

$485

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

jeu. 11/13

1:29 pm-8:45 am

2 stops13h 16m

Dublin

mer. 11/19

11:30 am-6:11 pm

1 stop12h 41m

$488

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

sam. 12/6

1:16 pm-8:45 am

2 stops13h 29m

Dublin

mar. 12/16

9:45 am-4:57 pm

1 stop13h 12m

$488

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

mer. 4/8

10:10 am-8:20 am

2 stops16h 10m

Dublin

mer. 4/15

6:00 am-4:36 pm

2 stops16h 36m

$490

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/24

Showing 1-10 of 21 results
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Compare providers for flights from O'Hare Intl to Dublin

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 O'Hare Intl to Dublin in October.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy3 starsTrust Score*2 stars
Justfly.comPrice Accuracy3 starsTrust Score*3 stars
CheapOairPrice Accuracy3 starsTrust Score*3 stars
business-class.comPrice Accuracy3 starsTrust Score*3 stars
CheapTicketsDealPrice Accuracy3 starsTrust Score*3 stars
CheapfaremartPrice Accuracy-Trust 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 Chicago O'Hare Intl Airport-Dublin flights, users find the pricing of CheapOair to be most consistent on Cheapflights vs. CheapOair Users can find the same prices on Chicago O'Hare Intl Airport-Dublin flight deals on Cheapflights vs. CheapOair >95% of the time. Price accuracy is based on data collected from Chicago O'Hare Intl Airport-Dublin flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Chicago O'Hare Intl Airport-Dublin flights, Cheapflights users trust CheapOair the most. CheapOair 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 Chicago O'Hare Intl Airport-Dublin 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 O'Hare Intl to Dublin

Have a flexible travel schedule? Discover the best time to fly to Dublin from O'Hare Intl 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 Chicago O'Hare Intl Airport to Dublin

How far ahead should I book a flight from Chicago O'Hare Intl Airport to Dublin?

Use this chart to determine the optimal time to book a round-trip flight from O'Hare Intl to Dublin. Price data was last updated on October 24, 2025.

Booking 20 days in advance of your planned departure date is, on average, the best time to get cheap flights from Chicago O'Hare Intl Airport to Dublin. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Chicago O'Hare Intl Airport to Dublin?

Currently, January is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Dublin (average of $378). Flying from Chicago O'Hare Intl Airport to Dublin in June is currently the most expensive (average of $679). 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 ORD to DUB?

Find hourly flight availability from O'Hare Intl to Dublin. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated octobre 27, 2025.

It’s optimal to fly from Chicago O'Hare Intl Airport to Dublin in the morning. By choosing this option you can save up to 11% on the cost of your flight, compared to a flight in the afternoon.

What is the cheapest day to fly from Chicago O'Hare Intl Airport to Dublin?

Use this chart to determine the cheapest time to fly round-trip from O'Hare Intl to Dublin. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Chicago O'Hare Intl Airport to Dublin flight should consider departing on Wednesday mornings when fares are most often at their lowest. Monday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

The best insider tips for Chicago O'Hare Intl Airport to Dublin flights

Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
Cheapflights partnered with top experts to bring you the best recommendations for your Chicago O'Hare Intl Airport to Dublin trip
Airports
ORD

Prepare for long walks between terminals at ORD. Know your airline's terminal to avoid unnecessary delays.

Read more about ORDby Ramsey Qubein
DUB

For a quick ride into Dublin, take the non-stop Aircoach or Dublin Express buses from DUB, departing every 15-30 minutes.

Read more about DUBby James March
Our travel experts
Ramsey Qubein

Ramsey Qubein

Expert on ORD

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
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

Reviews of airlines servicing Dublin

Get insights into the airlines that provide service to Dublin. 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 Dublin. Reviews last updated octobre 27, 2025.
Read through reviews of airlines operating flights from Chicago O'Hare Intl Airport to Dublin, such as United Airlines, American Airlines, and Aer Lingus. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,999 reviews

Overall

7.4

Food

6.6

Entertainment

7.1

Crew

8.1

Boarding

7.7

Comfort

7.3

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
United Airlines
7.4
Good
8,999 reviews
United Airlines
7.4
Good
8,999 reviews

Overall

7.4

Food

6.6

Entertainment

7.1

Crew

8.1

Boarding

7.7

Comfort

7.3

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
American Airlines
7.2
Good
11,029 reviews
United Airlines
7.4
Good
8,999 reviews

Overall

7.4

Food

6.6

Entertainment

7.1

Crew

8.1

Boarding

7.7

Comfort

7.3

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
Aer Lingus
7.2
Good
1,360 reviews
United Airlines
7.4
Good
8,999 reviews

Overall

7.4

Food

6.6

Entertainment

7.1

Crew

8.1

Boarding

7.7

Comfort

7.3

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
Icelandair
7.1
Good
562 reviews
United Airlines
7.4
Good
8,999 reviews

Overall

7.4

Food

6.6

Entertainment

7.1

Crew

8.1

Boarding

7.7

Comfort

7.3

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
Iberia
7.0
Good
3,000 reviews
United Airlines
7.4
Good
8,999 reviews

Overall

7.4

Food

6.6

Entertainment

7.1

Crew

8.1

Boarding

7.7

Comfort

7.3

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000

Related info for your journey

Find useful and relevant information for your journey from O'Hare Intl to Dublin. 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 Dublin from Chicago O'Hare Intl?

    For a flight from Chicago O'Hare Intl to Dublin, you will be flying into Dublin. Dublin (DUB) is just 5.7 mi from the center of the city. Dublin is the only Dublin airport and it handles 13 inbound flights from Chicago O'Hare Intl per day. 16 airlines have flights to Dublin from Chicago O'Hare Intl on a regular basis.

  • How long is the flight from Chicago O'Hare Intl Airport to Dublin?

    Departing from Chicago O'Hare Intl Airport to Dublin will take you 7h 35m. The distance between Chicago O'Hare Intl Airport and Dublin is about 3661 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines flying from Chicago O'Hare Intl Airport to Dublin round-trip?

    JetBlue, at $51, was found to be the cheapest airline from Chicago O'Hare Intl Airport to Dublin.Alternate airlines to your destination round-trip include Icelandair and TAP AIR PORTUGAL. JetBlue is priced at 92% lower than the current average price of a flight leaving 3 months from now.

  • What are the most reliable airlines from Chicago O'Hare Intl Airport to Dublin?

    Consider American Airlines (76%), Aer Lingus (76%) or Iberia (76%) when booking your flight. These represent the most reliable airlines when flying from Chicago O'Hare Intl Airport to Dublin.

  • What are the cheapest flights from Chicago O'Hare Intl Airport to Dublin?

    While on average a flight from Chicago O'Hare Intl Airport to Dublin is generally $2,923, our data shows the cheapest flight currently is $394. When looking at the most popular route, (Chicago O'Hare Intl - Dublin), you can expect to pay $348 for that flight.

  • Can I find deals for flights from O'Hare Intl to Dublin that include hotel bookings?

    Yes. In addition to deals on O'Hare Intl to Dublin flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from O'Hare Intl to Dublin?

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

  • Can I find deals for business class flights from O'Hare Intl to Dublin?

    Yes. Cheapflights offers flight deals from O'Hare Intl to Dublin 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 Chicago O'Hare Intl Airport to Dublin?

    Currently, January is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Dublin (average of $378). Flying from Chicago O'Hare Intl Airport to Dublin in June is currently the most expensive (average of $679). 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 Dublin?

Book flights to Dublin if you plan to visit one of these locations
Maynooth
Castleknock
Swords
Wicklow
Leixlip

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Top 10 airlines flying from O'Hare Intl to Dublin

Discover the top 10 airlines that operate flights from O'Hare Intl to Dublin. 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 octobre 27, 2025.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$51Average$568FlexibilityNo cancel feeOn-time62%
IcelandairCheapest$349Average$562FlexibilityNo cancel feeOn-time76%
TAP AIR PORTUGALCheapest$393Average$502FlexibilityNo cancel feeOn-timeN/A
Scandinavian AirlinesCheapest$400Average$479FlexibilityNo cancel feeOn-time77%
SWISSCheapest$473Average$818FlexibilityNo cancel feeOn-time79%
LufthansaCheapest$476Average$744FlexibilityNo cancel feeOn-time76%
Aer LingusCheapest$497Average$720FlexibilityNo cancel feeOn-timeN/A
British AirwaysCheapest$512Average$687FlexibilityNo cancel feeOn-time70%
Air CanadaCheapest$523Average$676FlexibilityNo cancel feeOn-time67%
Turkish AirlinesCheapest$528Average$596FlexibilityNo cancel feeOn-time77%

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