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Cologne

$254+ Cheap flights from Boston (BOS) to Cologne (CGN)

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 9/13. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — CGN
Aug 23 — Aug 301
Sat 8/23
Sat 8/30
1 adult, Economy
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Cheap flight deals from Boston to Cologne

Discover tips and strategies to find the most affordable flight options for your journey from Boston (BOS) to Cologne (CGN). 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 August 18, 2025.

Round-trip from

$533
(British Airways)

One-way from

$254
(Kiwi.com)

Popular in

December

Cheapest in

February

Average price

$691
From Boston Logan Intl to Cologne Köln/Bonn
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One-way flight from Boston Logan Intl to Cologne Köln/Bonn
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Highest demand for flights based on searches. 19% potential increase in price ($195 potential increase over avg. RT price).
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Cheapest flight prices on average. 9% potential price decrease ($75 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Find flight deals from Boston to Cologne

Cheapest flights from Boston to Cologne
Explore the most affordable flight options available from Boston to Cologne. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 18, 2025.

This British Airways deal was found by Cheapflights users on 8/16. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/39:55 pmBOS - CGN
1 stop17h 05mBritish Airways
Tue 9/99:15 pmCGN - BOS
1 stop20h 00mBritish Airways
Deal found 8/16$533
This Ovago deal was found by Cheapflights users on 8/17. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/127:30 amBOS - CGN
1 stop26h 40mBritish Airways
Sun 11/164:35 pmCGN - BOS
1 stop11h 20mBritish Airways
Deal found 8/17$550
This Cheapflightsfares deal was found by Cheapflights users on 8/14. 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.
Tue 9/167:40 pmBOS - CGN
1 stop19h 45mBritish Airways
Tue 9/303:30 pmCGN - BOS
1 stop13h 15mBritish Airways
Deal found 8/14$553
This Orbitz deal was found by Cheapflights users on 8/15. 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.
Sun 9/217:25 pmBOS - CGN
1 stop19h 00mBritish Airways
Tue 9/303:30 pmCGN - BOS
1 stop25h 45mBritish Airways
Deal found 8/15$555
This Gurufare deal was found by Cheapflights users on 8/15. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/294:30 pmBOS - CGN
2 stops15h 50mBritish Airways
Mon 10/69:15 pmCGN - BOS
1 stop20h 10mBritish Airways
Deal found 8/15$564
This Cheapflightsfares deal was found by Cheapflights users on 8/15. 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.
Thu 10/237:40 pmBOS - CGN
1 stop19h 30mBritish Airways
Fri 10/314:35 pmCGN - BOS
1 stop11h 20mBritish Airways
Deal found 8/15$577

Cheapflights Fare Finder

 
Customize your flight search to find flights from Boston to Cologne 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 August 18, 2025.
Use the filters below to find and compare flights from Boston to Cologne that are best for you.

Fly from

Boston

Fly to

Cologne

Route

Depart

Return

Price

BostonCologne

BOS - CGN

BOSCGN

Boston Logan Intl

Wed 9/3

9:55 pm-9:00 pm

1 stop17h 05m

Cologne Köln/Bonn

Tue 9/9

9:15 pm-11:15 am

1 stop20h 00m

$533

BostonCologne

BOS - CGN

BOSCGN

Boston Logan Intl

Thu 1/1

9:35 pm-3:40 pm

1 stop12h 05m

Cologne Köln/Bonn

Wed 1/14

5:15 pm-2:20 pm

1 stop27h 05m

$549

BostonCologne

BOS - CGN

BOSCGN

Boston Logan Intl

Wed 11/12

7:30 am-4:10 pm

1 stop26h 40m

Cologne Köln/Bonn

Sun 11/16

4:35 pm-9:55 pm

1 stop11h 20m

$550

BostonCologne

BOS - CGN

BOSCGN

Boston Logan Intl

Tue 9/16

7:40 pm-9:25 pm

1 stop19h 45m

Cologne Köln/Bonn

Tue 9/30

3:30 pm-10:45 pm

1 stop13h 15m

$553

BostonCologne

BOS - CGN

BOSCGN

Boston Logan Intl

Sun 9/21

7:25 pm-8:25 pm

1 stop19h 00m

Cologne Köln/Bonn

Tue 9/30

3:30 pm-11:15 am

1 stop25h 45m

$555

BostonCologne

BOS - CGN

BOSCGN

Boston Logan Intl

Mon 9/29

10:00 pm-2:20 pm

1 stop10h 20m

Cologne Köln/Bonn

Mon 10/6

9:15 pm-11:25 am

1 stop20h 10m

$555

BostonCologne

BOS - CGN

BOSCGN

Boston Logan Intl

Sat 9/13

12:20 pm-2:10 pm

3 stops43h 50m

$254

BostonCologne

BOS - CGN

BOSCGN

Boston Logan Intl

Mon 9/29

5:05 pm-12:00 am

3 stops24h 55m

$296

BostonCologne

BOS - CGN

BOSCGN

Boston Logan Intl

Mon 9/1

7:40 pm-2:20 pm

1 stop12h 40m

$387

BostonCologne

BOS - CGN

BOSCGN

Boston Logan Intl

Sat 12/20

9:35 pm-3:40 pm

1 stop12h 05m

$602

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/15

Showing 1-10 of 11 results
1
2

Best time to book a flight from Boston to Cologne

Have a flexible travel schedule? Discover the best time to fly to Cologne 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 Cologne

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

Currently, October is the cheapest month in which you can book a flight from Boston to Cologne (average of $649). Flying from Boston to Cologne in June is currently the most expensive (average of $1,252). 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.

Reviews of airlines servicing Cologne

Get insights into the airlines that provide service to Cologne. 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 Cologne. Reviews last updated August 18, 2025.
Get a feel of what it's like to fly with Turkish Airlines, Lufthansa, and British Airways from Boston to Cologne by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Turkish Airlines
7.3
Good
3,945 reviews

Crew

7.7

Boarding

7.3

Food

7.4

Comfort

7.3

Entertainment

7.4

Overall

7.3

Reviews

1 / 20
2.0
Mediocre

Brian,Jul 2025

SEA - IST

Horrible check-in experience in Seattle. Was actually yelled at by a customer service rep and then he intentionally would put us in the back row to make sure our seats would not recline. When I complained to customer service they told me they did not find any issues with how we were treated. The sinks did not drain in the bathroom during the flight and my in-flight entertainment never worked during a 12 hour flight. They said they would reset 3 times but never did. Would never fly them again.
Turkish Airlines
7.3
Good
3,945 reviews
Turkish Airlines
7.3
Good
3,945 reviews

Crew

7.7

Boarding

7.3

Food

7.4

Comfort

7.3

Entertainment

7.4

Overall

7.3

Reviews

1 / 20
2.0
Mediocre

Brian,Jul 2025

SEA - IST

Horrible check-in experience in Seattle. Was actually yelled at by a customer service rep and then he intentionally would put us in the back row to make sure our seats would not recline. When I complained to customer service they told me they did not find any issues with how we were treated. The sinks did not drain in the bathroom during the flight and my in-flight entertainment never worked during a 12 hour flight. They said they would reset 3 times but never did. Would never fly them again.
Lufthansa
6.8
Okay
7,330 reviews
Turkish Airlines
7.3
Good
3,945 reviews

Crew

7.7

Boarding

7.3

Food

7.4

Comfort

7.3

Entertainment

7.4

Overall

7.3

Reviews

1 / 20
2.0
Mediocre

Brian,Jul 2025

SEA - IST

Horrible check-in experience in Seattle. Was actually yelled at by a customer service rep and then he intentionally would put us in the back row to make sure our seats would not recline. When I complained to customer service they told me they did not find any issues with how we were treated. The sinks did not drain in the bathroom during the flight and my in-flight entertainment never worked during a 12 hour flight. They said they would reset 3 times but never did. Would never fly them again.
British Airways
6.7
Okay
7,277 reviews
Turkish Airlines
7.3
Good
3,945 reviews

Crew

7.7

Boarding

7.3

Food

7.4

Comfort

7.3

Entertainment

7.4

Overall

7.3

Reviews

1 / 20
2.0
Mediocre

Brian,Jul 2025

SEA - IST

Horrible check-in experience in Seattle. Was actually yelled at by a customer service rep and then he intentionally would put us in the back row to make sure our seats would not recline. When I complained to customer service they told me they did not find any issues with how we were treated. The sinks did not drain in the bathroom during the flight and my in-flight entertainment never worked during a 12 hour flight. They said they would reset 3 times but never did. Would never fly them again.

Related info for your journey

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

  • What are the cheapest airlines flying from Boston to Cologne round-trip?

    According to our current data, Lufthansa ($547), British Airways ($594), and Turkish Airlines ($620) offers the cheapest pricing from Boston to Cologne. You may be able to fly from Boston to Cologne for 34% less than the average price by searching for these airlines.

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

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

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

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

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

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

    Currently, October is the cheapest month in which you can book a flight from Boston to Cologne (average of $649). Flying from Boston to Cologne in June is currently the most expensive (average of $1,252). 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

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Top 3 airlines flying from Boston to Cologne

Discover the top 3 airlines that operate flights from Boston to Cologne. 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 August 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest$578Average$737FlexibilityNo cancel feeOn-time76%
British AirwaysCheapest$594Average$721FlexibilityNo cancel feeOn-time70%
Turkish AirlinesCheapest$620Average$682FlexibilityNo cancel feeOn-time77%

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