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Cologne

$320+ 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 12/15. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — CGN
Oct 16 — Oct 231
Thu 10/16
Thu 10/23
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 September 16, 2025.

Round-trip from

$471
(Kiwi.com)

One-way from

$320
(Kiwi.com)

Popular in

December

Cheapest in

February

Average price

$1,062
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. 20% potential increase in price ($214 potential increase over avg. RT price).
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Cheapest flight prices on average. 10% potential price decrease ($77 potential savings vs. average RT price).
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Average for round-trip flights in September 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 September 16, 2025.

This Kiwi.com deal was found by Cheapflights users on 9/15. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/1710:40 pmBOS - CGN
1 stop32h 45mMultiple Airlines
Mon 11/247:35 pmCGN - BOS
1 stop31h 20mMultiple Airlines
Deal found 9/15$471
This oojo deal was found by Cheapflights users on 9/14. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/306:55 pmBOS - CGN
1 stop15h 35mBritish Airways
Thu 1/85:05 pmCGN - BOS
1 stop27h 15mBritish Airways
Deal found 9/14$474
This British Airways deal was found by Cheapflights users on 9/16. 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 10/298:30 amBOS - CGN
1 stop26h 40mBritish Airways
Mon 11/105:15 pmCGN - BOS
1 stop27h 05mBritish Airways
Deal found 9/16$475
This oojo deal was found by Cheapflights users on 9/14. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/296:55 pmBOS - CGN
1 stop15h 15mBritish Airways
Mon 1/55:15 pmCGN - BOS
1 stop32h 30mBritish Airways
Deal found 9/14$499
This Mytrip deal was found by Cheapflights users on 9/15. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/125:30 amBOS - CGN
2 stops28h 15mMultiple Airlines
Sun 11/169:30 amCGN - BOS
2 stops30h 02mMultiple Airlines
Deal found 9/15$520
This Kiwi.com deal was found by Cheapflights users on 9/16. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/106:05 pmBOS - CGN
2 stops20h 20mMultiple Airlines
Thu 11/1310:35 amCGN - BOS
1 stop16h 20mMultiple Airlines
Deal found 9/16$538
This Ovago deal was found by Cheapflights users on 9/15. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/146:55 pmBOS - CGN
1 stop15h 25mBritish Airways
Wed 11/195:15 pmCGN - BOS
1 stop27h 05mBritish Airways
Deal found 9/15$540
This Kiwi.com deal was found by Cheapflights users on 9/15. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/3011:40 pmBOS - CGN
2 stops13h 35mMultiple Airlines
Thu 11/610:40 amCGN - BOS
1 stop16h 15mMultiple Airlines
Deal found 9/15$541

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 September 16, 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 10/29

8:30 am-4:10 pm

1 stop26h 40m

Cologne Köln/Bonn

Mon 11/10

5:15 pm-2:20 pm

1 stop27h 05m

$475

BostonCologne

BOS - CGN

BOSCGN

Boston Logan Intl

Mon 12/29

6:55 pm-4:10 pm

1 stop15h 15m

Cologne Köln/Bonn

Mon 1/5

5:15 pm-7:45 pm

1 stop32h 30m

$499

BostonCologne

BOS - CGN

BOSCGN

Boston Logan Intl

Mon 11/17

10:40 pm-1:25 pm

1 stop32h 45m

Cologne Köln/Bonn

Mon 11/24

11:10 pm-8:55 pm

2 stops27h 45m

$513

BostonCologne

BOS - CGN

BOSCGN

Boston Logan Intl

Thu 1/1

7:30 am-10:15 am

1 stop20h 45m

Cologne Köln/Bonn

Thu 1/8

5:05 pm-7:45 pm

1 stop32h 40m

$525

BostonCologne

BOS - CGN

BOSCGN

Boston Logan Intl

Tue 12/30

9:35 pm-4:30 pm

1 stop12h 55m

Cologne Köln/Bonn

Thu 1/8

5:05 pm-5:08 pm

2 stops30h 03m

$525

BostonCologne

BOS - CGN

BOSCGN

Boston Logan Intl

Fri 1/2

7:30 am-4:20 pm

1 stop26h 50m

Cologne Köln/Bonn

Thu 1/8

5:05 pm-2:20 pm

1 stop27h 15m

$525

BostonCologne

BOS - CGN

BOSCGN

Boston Logan Intl

Fri 11/14

6:55 pm-4:20 pm

1 stop15h 25m

Cologne Köln/Bonn

Wed 11/19

5:15 pm-2:20 pm

1 stop27h 05m

$540

BostonCologne

BOS - CGN

BOSCGN

Boston Logan Intl

Thu 10/30

11:40 pm-6:15 pm

2 stops13h 35m

Cologne Köln/Bonn

Thu 11/6

10:40 am-8:55 pm

1 stop16h 15m

$541

BostonCologne

BOS - CGN

BOSCGN

Boston Logan Intl

Mon 12/15

9:20 pm-1:25 pm

2 stops34h 05m

$320

BostonCologne

BOS - CGN

BOSCGN

Boston Logan Intl

Mon 12/15

10:15 am-12:50 pm

2 stops20h 35m

$410

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/14

Showing 1-10 of 17 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 $1,249). 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 September 16, 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
3,968 reviews

Comfort

7.3

Entertainment

7.4

Crew

7.7

Overall

7.3

Boarding

7.3

Food

7.4

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
3,968 reviews
Turkish Airlines
7.3
Good
3,968 reviews

Comfort

7.3

Entertainment

7.4

Crew

7.7

Overall

7.3

Boarding

7.3

Food

7.4

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
7,407 reviews
Turkish Airlines
7.3
Good
3,968 reviews

Comfort

7.3

Entertainment

7.4

Crew

7.7

Overall

7.3

Boarding

7.3

Food

7.4

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
7,363 reviews
Turkish Airlines
7.3
Good
3,968 reviews

Comfort

7.3

Entertainment

7.4

Crew

7.7

Overall

7.3

Boarding

7.3

Food

7.4

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.

  • How long is the flight from Boston to Cologne?

    Airlines like British Airways fly from Boston to Cologne in about 26h 40m. The time it takes to get you to your destination can typically vary by up to . Boston and Cologne are separated by a distance of 3576 mi.

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

    According to our current data, Lufthansa ($547), British Airways ($577), and Turkish Airlines ($620) offers the cheapest pricing from Boston to Cologne. You may be able to fly from Boston to Cologne for 33% 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 $1,249). 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 September 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest$547Average$705FlexibilityNo cancel feeOn-time76%
British AirwaysCheapest$577Average$691FlexibilityNo cancel feeOn-time70%
Turkish AirlinesCheapest$620Average$682FlexibilityNo cancel feeOn-time77%

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