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$231+ Cheap flights from Dulles Intl (IAD) to Copenhagen (CPH)

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 12/10. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — CPH
nov. 27 — dic. 41
jue. 11/27
jue. 12/4
1 adult, Economy
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Cheapflights Tip: The best prices from Washington, D.C. Dulles Intl to Kastrup Copenhagen are usually found in February or March, booked 86 days in advance, depart on a Monday or Tuesday and return on a Monday

Cheap flight deals from Dulles Intl to Copenhagen

Discover tips and strategies to find the most affordable flight options for your journey from Dulles Intl (IAD) to Copenhagen (CPH). 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 octubre 28, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$473
(Cheapflightsfares)

One-way from

$231
(SmartFares)

Popular in

June

Cheapest in

February

Average price

$569

Good round-trip deal

$564 or less

Good one-way deal

$372 or less
Provider with most accurate pricing for Washington, D.C. Dulles Intl-Kastrup Copenhagen flight deals.
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Provider most trusted by Cheapflights users for Washington, D.C. Dulles Intl-Kastrup Copenhagen flights.
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From Washington, D.C. Dulles Intl to Kastrup Copenhagen
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One-way flight from Washington, D.C. Dulles Intl to Kastrup Copenhagen
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Highest demand for flights based on searches. 15% potential increase in price ($116 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 Washington, D.C. Dulles Intl to Kastrup Copenhagen.
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Price to beat on a one-way flight from Washington, D.C. Dulles Intl to Kastrup Copenhagen.
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Find flight deals from Dulles Intl to Copenhagen

Cheapest flights from Dulles Intl to Copenhagen
Explore the most affordable flight options available from Dulles Intl to Copenhagen. Find the lowest fares from popular airlines and budget airlines, with prices last updated on octubre 28, 2025.

This Kiwi.com deal was found by Cheapflights users on 10/28. 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.
lun. 12/812:19 pmIAD - CPH
1 stop12h 51mScandinavian Airlines
mié. 12/171:55 pmCPH - IAD
Nonstop9h 20mScandinavian Airlines
Deal found 10/28$474
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 11/106:00 pmIAD - CPH
1 stop33h 05mMultiple Airlines
jue. 11/136:50 amCPH - IAD
1 stop15h 50mMultiple Airlines
Deal found 10/26$478
This SmartFares 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 11/277:49 pmIAD - CPH
1 stop29h 21mScandinavian Airlines
lun. 12/1512:55 pmCPH - IAD
1 stop12h 24mScandinavian Airlines
Deal found 10/26$479
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.
mié. 11/267:49 pmIAD - CPH
1 stop29h 21mScandinavian Airlines
sáb. 12/612:55 pmCPH - IAD
1 stop12h 24mScandinavian Airlines
Deal found 10/27$481
This Flightnetwork deal was found by Cheapflights users on 10/28. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 11/187:40 pmIAD - CPH
1 stop10h 05mIcelandair
mar. 11/2512:55 pmCPH - IAD
1 stop11h 35mIcelandair
Deal found 10/28$485
This Gotogate deal was found by Cheapflights users on 10/28. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 12/87:40 pmIAD - CPH
1 stop10h 05mIcelandair
mié. 12/176:15 amCPH - IAD
1 stop18h 15mIcelandair
Deal found 10/28$486
This lastminute.com 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 lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 12/612:19 pmIAD - CPH
2 stops16h 06mScandinavian Airlines
lun. 12/1512:55 pmCPH - IAD
1 stop12h 24mScandinavian Airlines
Deal found 10/26$487
This Orbitz 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 11/277:49 pmIAD - CPH
1 stop29h 21mScandinavian Airlines
mar. 12/212:50 pmCPH - IAD
2 stops28h 49mScandinavian Airlines
Deal found 10/26$488
This Ticket 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 Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 11/1912:11 pmIAD - CPH
1 stop12h 59mScandinavian Airlines
jue. 11/271:55 pmCPH - IAD
Nonstop9h 20mScandinavian Airlines
Deal found 10/27$490
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.
vie. 11/1410:55 pmIAD - CPH
1 stop12h 40mLufthansa
mar. 11/186:50 amCPH - IAD
1 stop15h 00mLufthansa
Deal found 10/25$492
This SmartFares 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 11/127:49 pmIAD - CPH
1 stop29h 21mScandinavian Airlines
mié. 11/191:55 pmCPH - IAD
Nonstop9h 20mScandinavian Airlines
Deal found 10/26$495

Cheapflights Fare Finder

 
Customize your flight search to find flights from Dulles Intl to Copenhagen 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 octubre 28, 2025.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Copenhagen that are best for you.

Fly from

Dulles Intl

Fly to

Copenhagen

Route

Depart

Return

Price

Washington, D.C.Copenhagen

IAD - CPH

IADCPH

Washington, D.C. Dulles Intl

lun. 3/2

5:40 pm-5:35 pm

1 stop17h 55m

Kastrup Copenhagen

mié. 3/4

10:05 am-8:15 pm

1 stop16h 10m

$488

Washington, D.C.Copenhagen

IAD - CPH

IADCPH

Washington, D.C. Dulles Intl

sáb. 2/28

12:30 pm-10:25 am

2 stops15h 55m

Kastrup Copenhagen

vie. 3/6

12:55 pm-7:12 pm

1 stop12h 17m

$523

Washington, D.C.Copenhagen

IAD - CPH

IADCPH

Washington, D.C. Dulles Intl

mar. 11/18

5:03 pm-1:10 pm

2 stops14h 07m

Kastrup Copenhagen

lun. 11/24

9:55 am-4:05 pm

1 stop12h 10m

$532

Washington, D.C.Copenhagen

IAD - CPH

IADCPH

Washington, D.C. Dulles Intl

mar. 11/18

5:03 pm-1:10 pm

2 stops14h 07m

Kastrup Copenhagen

mar. 11/25

9:55 am-4:05 pm

1 stop12h 10m

$532

Washington, D.C.Copenhagen

IAD - CPH

IADCPH

Washington, D.C. Dulles Intl

mar. 12/9

5:03 pm-1:10 pm

2 stops14h 07m

Kastrup Copenhagen

dom. 12/14

6:00 am-4:05 pm

1 stop16h 05m

$532

Washington, D.C.Copenhagen

IAD - CPH

IADCPH

Washington, D.C. Dulles Intl

lun. 11/17

10:55 pm-5:35 pm

1 stop12h 40m

Kastrup Copenhagen

jue. 11/20

10:10 am-3:50 pm

1 stop11h 40m

$533

Washington, D.C.Copenhagen

IAD - CPH

IADCPH

Washington, D.C. Dulles Intl

dom. 11/9

5:40 pm-5:35 pm

1 stop17h 55m

Kastrup Copenhagen

jue. 11/13

7:05 am-4:21 pm

2 stops15h 16m

$533

Washington, D.C.Copenhagen

IAD - CPH

IADCPH

Washington, D.C. Dulles Intl

vie. 1/9

12:23 pm-1:10 pm

2 stops18h 47m

Kastrup Copenhagen

mié. 2/25

9:55 am-4:05 pm

1 stop12h 10m

$533

Washington, D.C.Copenhagen

IAD - CPH

IADCPH

Washington, D.C. Dulles Intl

lun. 3/2

5:00 pm-1:10 pm

2 stops14h 10m

Kastrup Copenhagen

sáb. 3/7

6:00 am-4:05 pm

1 stop16h 05m

$533

Washington, D.C.Copenhagen

IAD - CPH

IADCPH

Washington, D.C. Dulles Intl

mié. 3/18

6:40 pm-12:25 pm

1 stop12h 45m

Kastrup Copenhagen

mié. 3/25

6:50 am-4:21 pm

2 stops14h 31m

$536

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/27

Showing 1-10 of 18 results
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Compare providers for flights from Dulles Intl to Copenhagen

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 Dulles Intl to Copenhagen 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
CheapfaremartPrice Accuracy-Trust Score*1 star
oojoPrice Accuracy3 starsTrust Score*3 stars
Kiwi.comPrice Accuracy3 starsTrust Score*3 stars
JustAirTicketPrice 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 Washington, D.C. Dulles Intl Airport-Copenhagen flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Washington, D.C. Dulles Intl Airport-Copenhagen flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Washington, D.C. Dulles Intl Airport-Copenhagen flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Washington, D.C. Dulles Intl Airport-Copenhagen 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 Washington, D.C. Dulles Intl Airport-Copenhagen 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 Dulles Intl to Copenhagen

Have a flexible travel schedule? Discover the best time to fly to Copenhagen from Dulles 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 Washington, D.C. Dulles Intl Airport to Copenhagen

How far ahead should I book a flight from Washington, D.C. Dulles Intl Airport to Copenhagen?

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

To ensure you get the cheapest price possible for a flight from Washington, D.C. Dulles Intl Airport to Copenhagen, you should look to book at least 86 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 Washington, D.C. Dulles Intl Airport to Copenhagen?

Currently, March is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Copenhagen (average of $324). Flying from Washington, D.C. Dulles Intl Airport to Copenhagen in June is currently the most expensive (average of $594). 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 IAD to CPH?

Find hourly flight availability from Dulles Intl to Copenhagen. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated octubre 28, 2025.

It’s typically best to fly out from Washington, D.C. Dulles Intl Airport to Copenhagen in the afternoon. Doing so could potentially save you 35% on the flight price compared to flying at noon, which is usually more expensive.

How much does it cost to fly round-trip from Washington, D.C. Dulles Intl Airport to Copenhagen?

The best insider tips for Washington, D.C. Dulles Intl Airport to Copenhagen 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 Washington, D.C. Dulles Intl Airport to Copenhagen trip
Airports
IAD

Security queues can be long, so plan extra time for check-in, especially during afternoon and evening hours.

Read more about IADby Ramsey Qubein
CPH

The Metro is the simplest way to reach Copenhagen, with trains every 5 minutes during the day.

Read more about CPHby John Walton
Our travel experts
John Walton

John Walton

Expert on CPH

John Walton

John Walton

Independent aviation journalist John Walton took his first flight at eight weeks old and hasn’t stopped travelling since. A world-renowned expert in airlines and the passenger experience, he writes in depth on aviation, is a resident expert on travel in Japan and France, and offers a uniquely queer perspective on travelling the world.

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 Copenhagen

Get insights into the airlines that provide service to Copenhagen. 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 Copenhagen. Reviews last updated octubre 28, 2025.
Peruse reviews from past customers who have flown with Scandinavian Airlines, United Airlines, and Icelandair from Washington, D.C. Dulles Intl Airport to Copenhagen 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.
Scandinavian Airlines
7.4
Good
1,543 reviews

Boarding

7.6

Entertainment

6.6

Crew

8.0

Comfort

7.3

Overall

7.4

Food

6.6

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

OSL - CPH

Good was ok. Complimentary wine and beer was nice. Soft drinks should have been free too. Overall great flight
Scandinavian Airlines
7.4
Good
1,543 reviews
Scandinavian Airlines
7.4
Good
1,543 reviews

Boarding

7.6

Entertainment

6.6

Crew

8.0

Comfort

7.3

Overall

7.4

Food

6.6

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

OSL - CPH

Good was ok. Complimentary wine and beer was nice. Soft drinks should have been free too. Overall great flight
United Airlines
7.4
Good
9,001 reviews
Scandinavian Airlines
7.4
Good
1,543 reviews

Boarding

7.6

Entertainment

6.6

Crew

8.0

Comfort

7.3

Overall

7.4

Food

6.6

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

OSL - CPH

Good was ok. Complimentary wine and beer was nice. Soft drinks should have been free too. Overall great flight
Icelandair
7.1
Good
562 reviews
Scandinavian Airlines
7.4
Good
1,543 reviews

Boarding

7.6

Entertainment

6.6

Crew

8.0

Comfort

7.3

Overall

7.4

Food

6.6

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

OSL - CPH

Good was ok. Complimentary wine and beer was nice. Soft drinks should have been free too. Overall great flight
PLAY
7.0
Good
Scandinavian Airlines
7.4
Good
1,543 reviews

Boarding

7.6

Entertainment

6.6

Crew

8.0

Comfort

7.3

Overall

7.4

Food

6.6

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

OSL - CPH

Good was ok. Complimentary wine and beer was nice. Soft drinks should have been free too. Overall great flight
Lufthansa
6.8
Okay
7,535 reviews
Scandinavian Airlines
7.4
Good
1,543 reviews

Boarding

7.6

Entertainment

6.6

Crew

8.0

Comfort

7.3

Overall

7.4

Food

6.6

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

OSL - CPH

Good was ok. Complimentary wine and beer was nice. Soft drinks should have been free too. Overall great flight

Related info for your journey

Find useful and relevant information for your journey from Dulles Intl to Copenhagen. 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 Copenhagen from Washington, D.C. Dulles Intl?

    Kastrup Copenhagen (CPH), located 5.0 mi from the city center, is the airport you fly into when you book flights from Washington, D.C. Dulles Intl to Copenhagen. 9 airlines have flights to Kastrup Copenhagen from Washington, D.C. Dulles Intl on a regular basis. Booking flights from Washington, D.C. Dulles Intl to Kastrup Copenhagen should not be difficult; the airport handles an average of 1 inbound flight from Washington, D.C. Dulles Intl per day.

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

    United Airlines, Scandinavian Airlines, and Delta can get you from Washington, D.C. Dulles Intl Airport to Copenhagen in just under 14h 07m. Your travel time can differ by up to 3h 48m. The distance between Washington, D.C. Dulles Intl Airport and Copenhagen is about 4060 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines flying from Washington, D.C. Dulles Intl Airport to Copenhagen round-trip?

    PLAY, at $285, was found to be the cheapest airline from Washington, D.C. Dulles Intl Airport to Copenhagen.Alternate airlines to your destination round-trip include Icelandair and Scandinavian Airlines. These flights start at 54% lower than the current average price 3 months from now.

  • What are the most reliable airlines from Washington, D.C. Dulles Intl Airport to Copenhagen?

    The top 3 most reliable airlines when flying from Washington, D.C. Dulles Intl Airport to Copenhagen are Air France (95%), Scandinavian Airlines (90%) and Delta (90%).

  • What are the cheapest flights from Washington, D.C. Dulles Intl Airport to Copenhagen?

    The cheapest flight price from Washington, D.C. Dulles Intl Airport to Copenhagen is $247. On average you can expect to pay $1,040. The most popular route, (Washington, D.C. Dulles Intl - Kastrup Copenhagen), can usually be booked for $348.

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

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

  • How can I find direct flights from Dulles Intl to Copenhagen?

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

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

    Yes. Cheapflights offers flight deals from Dulles Intl to Copenhagen 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. Dulles Intl Airport to Copenhagen?

    Currently, March is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Copenhagen (average of $324). Flying from Washington, D.C. Dulles Intl Airport to Copenhagen in June is currently the most expensive (average of $594). 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 Copenhagen?

Book flights to Copenhagen if you plan to visit one of these locations
Kastrup

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Top 9 airlines flying from Dulles Intl to Copenhagen

Discover the top 9 airlines that operate flights from Dulles Intl to Copenhagen. 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 octubre 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
PLAYCheapest$285Average$440FlexibilityNo cancel feeOn-timeN/A
IcelandairCheapest$404Average$556FlexibilityNo cancel feeOn-time76%
Scandinavian AirlinesCheapest$441Average$690FlexibilityNo cancel feeOn-time77%
SWISSCheapest$480Average$670FlexibilityNo cancel feeOn-time79%
British AirwaysCheapest$509Average$673FlexibilityNo cancel feeOn-time70%
LufthansaCheapest$512Average$695FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$531Average$741FlexibilityNo cancel feeOn-time69%
KLMCheapest$588Average$864FlexibilityNo cancel feeOn-time75%
DeltaCheapest$589Average$972FlexibilityNo cancel feeOn-timeN/A

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