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Denmark

$393+ Cheap flights from Boston (BOS) to Denmark

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 8/13. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — CPH
Jun 10 — Jun 171
Wed 6/10
Wed 6/17
1 adult, Economy
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Cheap flight deals from Boston to Denmark

Cheapest flights from Boston to Denmark
Explore the most affordable flight options available from Boston to Denmark. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 11, 2026.

This Justfly.com deal was found by Cheapflights users on 5/6. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/106:50 pm
BOS
-
CPH
1 stop32h 05m
Multiple Airlines
Mon 8/177:55 pm
CPH
-
BOS
1 stop25h 15m
Multiple Airlines
Deal found 5/6$617
This Cheapflightsfares deal was found by Cheapflights users on 5/7. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/125:20 pm
BOS
-
CPH
1 stop9h 35m
SWISS
Thu 8/273:00 pm
CPH
-
BOS
1 stop10h 55m
SWISS
Deal found 5/7$618
This Gotogate deal was found by Cheapflights users on 5/6. 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.
Thu 8/135:00 pm
BOS
-
CPH
1 stop11h 50m
Multiple Airlines
Thu 12/106:55 am
CPH
-
BOS
2 stops13h 42m
Multiple Airlines
Deal found 5/6$620
This United Airlines deal was found by Cheapflights users on 5/10. 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.
Sun 8/93:35 pm
BOS
-
CPH
1 stop11h 20m
United Airlines
Fri 8/1412:15 pm
CPH
-
BOS
2 stops15h 44m
United Airlines
Deal found 5/10$621
This United Airlines deal was found by Cheapflights users on 5/8. 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 8/143:35 pm
BOS
-
CPH
1 stop11h 20m
United Airlines
Fri 12/1111:35 am
CPH
-
BOS
1 stop17h 02m
United Airlines
Deal found 5/8$622
This oojo deal was found by Cheapflights users on 5/7. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/48:50 pm
BOS
-
CPH
1 stop10h 05m
Icelandair
Sun 12/209:30 pm
CPH
-
BOS
1 stop26h 20m
Icelandair
Deal found 5/7$623
This Air Canada deal was found by Cheapflights users on 5/6. 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.
Tue 8/1110:40 am
BOS
-
CPH
1 stop16h 15m
Air Canada
Wed 8/196:50 am
CPH
-
BOS
2 stops16h 52m
Air Canada
Deal found 5/6$624
This Cheapflightsfares deal was found by Cheapflights users on 5/9. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/145:40 pm
BOS
-
CPH
Nonstop7h 20m
Scandinavian Airlines
Mon 9/281:25 pm
CPH
-
BOS
Nonstop8h 10m
Scandinavian Airlines
Deal found 5/9$625
This United Airlines deal was found by Cheapflights users on 5/9. 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 8/146:00 am
BOS
-
CPH
2 stops20h 55m
United Airlines
Wed 8/1912:15 pm
CPH
-
BOS
2 stops27h 33m
United Airlines
Deal found 5/9$626
This United Airlines deal was found by Cheapflights users on 5/10. 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 8/76:00 am
BOS
-
CPH
1 stop22h 50m
United Airlines
Tue 8/1812:45 pm
CPH
-
BOS
1 stop11h 37m
United Airlines
Deal found 5/10$627
This Justfly.com deal was found by Cheapflights users on 5/10. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/67:15 pm
BOS
-
CPH
1 stop33h 35m
Air Canada
Wed 9/167:00 am
CPH
-
BOS
2 stops17h 07m
Air Canada
Deal found 5/10$628
This Air Canada deal was found by Cheapflights users on 5/10. 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.
Sun 8/910:50 am
BOS
-
CPH
2 stops16h 05m
Air Canada
Thu 12/109:50 am
CPH
-
BOS
2 stops16h 27m
Air Canada
Deal found 5/10$629

Find flight deals from Boston to Denmark

Keep the following information in mind while searching for Boston to Denmark flight deals. Data was last updated May 11, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$622
(Mytrip)

One-way from

$393
(FlightHub)

Popular in

June

Cheapest in

February

Average price

$726

Good round-trip deal

$687 or less

Good one-way deal

$482 or less
Provider with most accurate pricing for Boston Logan Intl-Kastrup Copenhagen flight deals.
Search Deals
Provider most trusted by Cheapflights users for Boston Logan Intl-Kastrup Copenhagen flights.
Search Deals
From Boston Logan Intl to Denmark
Search Deals
One-way flight from Boston Logan Intl to Denmark
Search Deals
Highest demand for flights based on searches. 19% potential increase in price ($145 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($23 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 2026
Search Deals
Price to beat on a round-trip flight from Boston Logan Intl to Denmark.
Search Deals
Price to beat on a one-way flight from Boston Logan Intl to Denmark.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Boston to Denmark 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 May 11, 2026.
Use the filters below to find and compare flights from Boston to Denmark that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BostonCopenhagen

BOS - CPH

BOSCPH

Boston Logan Intl

Fri 8/14

3:35 pm-8:55 am

1 stop11h 20m

Kastrup Copenhagen

Thu 12/10

11:35 am-6:42 pm

1 stop13h 07m

$622

BostonCopenhagen

BOS - CPH

BOSCPH

Boston Logan Intl

Fri 8/14

3:35 pm-8:55 am

1 stop11h 20m

Kastrup Copenhagen

Fri 12/11

11:35 am-6:42 pm

1 stop13h 07m

$622

BostonAalborg

BOS - AAL

BOSAAL

Boston Logan Intl

Sun 8/30

5:40 pm-6:10 pm

2 stops18h 30m

Aalborg

Mon 9/7

2:25 pm-3:35 pm

1 stop31h 10m

$669

BostonCopenhagen

BOS - CPH

BOSCPH

Boston Logan Intl

Wed 8/5

6:50 pm-8:55 am

1 stop32h 05m

Kastrup Copenhagen

Sun 8/16

12:45 pm-5:42 pm

2 stops34h 57m

$672

BostonAalborg

BOS - AAL

BOSAAL

Boston Logan Intl

Sun 8/30

5:40 pm-1:50 pm

1 stop14h 10m

Aalborg

Tue 9/8

6:15 am-3:35 pm

1 stop15h 20m

$678

BostonAalborg

BOS - AAL

BOSAAL

Boston Logan Intl

Mon 8/31

5:40 pm-9:20 am

1 stop9h 40m

Aalborg

Tue 9/8

6:15 am-3:35 pm

1 stop15h 20m

$678

BostonCopenhagen

BOS - CPH

BOSCPH

Boston Logan Intl

Thu 6/4

10:35 am-8:55 am

1 stop16h 20m

Kastrup Copenhagen

Wed 6/10

12:15 pm-9:53 am

2 stops27h 38m

$708

BostonCopenhagen

BOS - CPH

BOSCPH

Boston Logan Intl

Tue 9/15

12:34 pm-2:10 pm

2 stops19h 36m

Kastrup Copenhagen

Fri 9/25

12:45 pm-10:40 pm

1 stop15h 55m

$721

BostonAalborg

BOS - AAL

BOSAAL

Boston Logan Intl

Mon 8/31

7:45 pm-5:45 pm

2 stops16h 00m

Aalborg

Tue 9/8

10:30 am-4:35 pm

1 stop12h 05m

$723

BostonCopenhagen

BOS - CPH

BOSCPH

Boston Logan Intl

Sun 6/7

7:15 am-11:45 am

1 stop22h 30m

Kastrup Copenhagen

Tue 7/14

9:00 am-10:43 pm

1 stop19h 43m

$724

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/10

Showing 1-10 of 53 resultsSorted by cheapest first
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6

Best time to book a flight from Boston to Denmark

Have a flexible travel schedule? Discover the best time to fly to Denmark from Boston 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 Boston to Denmark

How far ahead should I book a flight from Boston to Denmark?

The price you pay for your flight from Boston to Denmark may vary depending on when you book. For the best chance of a lower fare, look to book 89 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from Boston to Denmark?

Currently, September is the cheapest month in which you can book a flight from Boston to Denmark (average of $317). Flying from Boston to Denmark in July is currently the most expensive (average of $1,592). 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 BOS to DK?

Find hourly flight availability from Boston to Denmark. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated May 11, 2026.

When flying from Boston to Denmark, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from Boston to Denmark

Explore weekly flight availability from Boston to Denmark. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated May 11, 2026.

The most flights from BOS to DK0 are scheduled on a Monday (3 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (3 on average).

How often are flights from Boston to Denmark delayed?

About 7% of weekly flights between Boston and Denmark have experienced delays in the past year, with the average delay time being 106 minutes.

What is the most punctual flight time for Boston to Denmark flights?

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

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

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

Which airline has the best punctuality record on Boston to Denmark flights?

Over the last year, Scandinavian Airlines have had the lowest number of delays on this route, with just 7% of flights being delayed.

Reviews of airlines servicing Denmark

Get insights into the airlines that provide service to Denmark. 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 Denmark. Reviews last updated May 11, 2026.
Get a feel of what it's like to fly with Delta,KLM, andScandinavian Airlines from Boston to Denmark by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,452 reviews

Boarding

8.1

Food

7.2

Overall

7.9

Crew

8.5

Entertainment

7.8

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional
Delta
7.9
Good
8,452 reviews
Delta
7.9
Good
8,452 reviews

Boarding

8.1

Food

7.2

Overall

7.9

Crew

8.5

Entertainment

7.8

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional
KLM
7.8
Good
1,513 reviews
Delta
7.9
Good
8,452 reviews

Boarding

8.1

Food

7.2

Overall

7.9

Crew

8.5

Entertainment

7.8

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional
Scandinavian Airlines
7.4
Good
1,772 reviews
Delta
7.9
Good
8,452 reviews

Boarding

8.1

Food

7.2

Overall

7.9

Crew

8.5

Entertainment

7.8

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional
United Airlines
7.4
Good
9,695 reviews
Delta
7.9
Good
8,452 reviews

Boarding

8.1

Food

7.2

Overall

7.9

Crew

8.5

Entertainment

7.8

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional
Icelandair
7.0
Good
653 reviews
Delta
7.9
Good
8,452 reviews

Boarding

8.1

Food

7.2

Overall

7.9

Crew

8.5

Entertainment

7.8

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional

Related info for your journey

Find useful and relevant information for your journey from Boston to Denmark. 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 Boston to Denmark?

    Boston Logan Intl (BOS), located 2.6 mi from the city center, is the airport you fly out of when you book flights from Boston to Denmark.

  • How popular is this Boston to Denmark flight route?

    The Boston Logan Intl to Denmark flight path was viewed by 20 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • How long is the flight from Boston to Denmark?

    For as low as $622, United Airlines can have you in Denmark from Boston in 11h 20m. The distance between Boston and Denmark is about 3658 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 to fly from Boston to Denmark one-way?

    To fly one-way, consider booking your trip with Icelandair, which is currently one of the cheapest options available, starting at $191. SWISS flights start at $246 while deals on British Airways start at $250 one-way.

  • What are the most popular routes from Boston to Denmark?

    The most popular route from Boston to Denmark is Boston Logan Intl - Kastrup Copenhagen. You may also consider Boston Logan Intl - Billund or Boston Logan Intl - Aalborg.

  • What are the most reliable airlines from Boston to Denmark?

    Before booking your flight to Denmark from Boston, check out the most reliable airlines to get you to your destination on time: Air France (89%), Scandinavian Airlines (89%), Delta( 89%).

  • What are the cheapest flights from Boston to Denmark?

    While on average a flight from Boston to Denmark is generally $1,294, our data shows the cheapest flight currently is $439. When looking at the most popular route, (Boston Logan Intl - Kastrup Copenhagen), you can expect to pay $432 for that flight.

  • Can I find deals for flights from Boston to Denmark that include hotel bookings?

    Yes. In addition to deals on Boston to Denmark flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Boston to Denmark?

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

  • Can I find deals for business class flights from Boston to Denmark?

    Yes. Cheapflights offers flight deals from Boston to Denmark 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 Boston to Denmark?

    Currently, September is the cheapest month in which you can book a flight from Boston to Denmark (average of $317). Flying from Boston to Denmark in July is currently the most expensive (average of $1,592). 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

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.

Top 10 airlines flying from Boston to Denmark

Discover the top 10 airlines that operate flights from Boston to Denmark. 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 May 11, 2026.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest$317Average$766FlexibilityNo cancel feeOn-time76%
PLAYCheapest$323Average$488FlexibilityNo cancel feeOn-timeN/A
TAP AIR PORTUGALCheapest$364Average$401FlexibilityNo cancel feeOn-timeN/A
SWISSCheapest$385Average$546FlexibilityNo cancel feeOn-time79%
IcelandairCheapest$410Average$525FlexibilityNo cancel feeOn-time76%
Scandinavian AirlinesCheapest$412Average$691FlexibilityNo cancel feeOn-time77%
American AirlinesCheapest$416Average$705FlexibilityNo cancel feeOn-time71%
Air CanadaCheapest$425Average$499FlexibilityNo cancel feeOn-time67%
British AirwaysCheapest$430Average$677FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$448Average$654FlexibilityNo cancel feeOn-time69%

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