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Cologne

$449+ Cheap flights from Boston (BOS) to Cologne (CGN)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/12. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — CGN
Dec 31 — Jan 71
Wed 12/31
Wed 1/7
1 adult, Economy
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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 December 1, 2025.

This Mytrip deal was found by Cheapflights users on 11/30. 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.
Mon 12/155:30 amBOS - CGN
2 stops24h 40mMultiple Airlines
Mon 12/229:40 amCGN - BOS
1 stop34h 25mMultiple Airlines
Deal found 11/30$491
This Travelocity deal was found by Cheapflights users on 11/30. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/145:30 amBOS - CGN
2 stops24h 40mMultiple Airlines
Mon 12/229:40 amCGN - BOS
1 stop34h 25mMultiple Airlines
Deal found 11/30$507
This Travelocity deal was found by Cheapflights users on 11/30. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/145:30 amBOS - CGN
2 stops24h 40mAir Canada
Mon 12/226:55 pmCGN - BOS
2 stops28h 55mAir Canada
Deal found 11/30$526
This Expedia deal was found by Cheapflights users on 11/30. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/136:55 pmBOS - CGN
2 stops35h 15mMultiple Airlines
Mon 12/229:40 amCGN - BOS
1 stop34h 25mMultiple Airlines
Deal found 11/30$538
This FlightHub deal was found by Cheapflights users on 11/29. 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.
Sun 12/78:40 pmBOS - CGN
1 stop9h 55mLufthansa
Wed 12/101:20 pmCGN - BOS
1 stop11h 15mLufthansa
Deal found 11/29$626
This Gotogate deal was found by Cheapflights users on 11/30. 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.
Mon 12/83:40 pmBOS - CGN
2 stops24h 45mMultiple Airlines
Thu 12/118:20 pmCGN - BOS
1 stop23h 45mMultiple Airlines
Deal found 11/30$639
This oojo deal was found by Cheapflights users on 11/30. 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 12/157:30 amBOS - CGN
1 stop20h 35mBritish Airways
Mon 12/225:15 pmCGN - BOS
1 stop32h 30mBritish Airways
Deal found 11/30$640
This Expedia deal was found by Cheapflights users on 11/29. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/73:40 pmBOS - CGN
2 stops24h 45mMultiple Airlines
Wed 12/101:20 pmCGN - BOS
2 stops26h 12mMultiple Airlines
Deal found 11/29$661
This Orbitz deal was found by Cheapflights users on 11/30. 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.
Mon 12/810:15 amBOS - CGN
2 stops29h 00mAir Canada
Thu 12/116:45 amCGN - BOS
2 stops39h 12mAir Canada
Deal found 11/30$663
This oojo deal was found by Cheapflights users on 11/30. 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.
Sat 12/137:30 amBOS - CGN
1 stop20h 15mBritish Airways
Mon 12/225:15 pmCGN - BOS
1 stop32h 30mBritish Airways
Deal found 11/30$685

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 December 1, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$445
(oojo)

Popular in

December

Cheapest in

March

Average price

$1,298
Provider with most accurate pricing for Boston Logan Intl-Cologne Köln/Bonn flight deals.
Search Deals
Provider most trusted by Cheapflights users for Boston Logan Intl-Cologne Köln/Bonn flights.
Search Deals
From Boston Logan Intl to Cologne Köln/Bonn
Search Deals
Highest demand for flights based on searches. 16% potential increase in price ($149 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($50 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

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 December 1, 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

Mon 1/12

10:15 am-12:10 pm

2 stops19h 55m

Cologne Köln/Bonn

Tue 1/27

8:40 am-7:42 pm

2 stops17h 02m

$449

BostonCologne

BOS - CGN

BOSCGN

Boston Logan Intl

Mon 12/15

5:30 am-12:10 pm

2 stops24h 40m

Cologne Köln/Bonn

Mon 12/22

9:40 am-2:05 pm

1 stop34h 25m

$491

BostonCologne

BOS - CGN

BOSCGN

Boston Logan Intl

Thu 1/1

4:20 pm-12:35 pm

2 stops14h 15m

Cologne Köln/Bonn

Wed 1/14

5:55 pm-1:35 pm

2 stops25h 40m

$522

BostonCologne

BOS - CGN

BOSCGN

Boston Logan Intl

Mon 12/15

5:30 am-12:10 pm

2 stops24h 40m

Cologne Köln/Bonn

Mon 12/22

6:55 pm-5:50 pm

2 stops28h 55m

$526

BostonCologne

BOS - CGN

BOSCGN

Boston Logan Intl

Sat 12/13

6:55 pm-12:10 pm

2 stops35h 15m

Cologne Köln/Bonn

Mon 12/22

9:40 am-2:05 pm

1 stop34h 25m

$538

BostonCologne

BOS - CGN

BOSCGN

Boston Logan Intl

Fri 1/16

6:00 am-4:20 pm

2 stops28h 20m

Cologne Köln/Bonn

Sat 1/24

5:10 pm-9:55 pm

1 stop10h 45m

$565

BostonCologne

BOS - CGN

BOSCGN

Boston Logan Intl

Mon 12/22

1:19 pm-10:05 am

2 stops14h 46m

$796

BostonCologne

BOS - CGN

BOSCGN

Boston Logan Intl

Mon 12/22

8:40 pm-12:50 pm

1 stop10h 10m

$1,373

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/29

Compare providers for flights from Boston to Cologne

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 Boston to Cologne in December.
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

*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 Boston-Cologne flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Boston-Cologne flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Boston-Cologne flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Boston-Cologne 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 Boston-Cologne 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 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, November is the cheapest month in which you can book a flight from Boston to Cologne (average of $238). Flying from Boston to Cologne in June is currently the most expensive (average of $595). 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 December 1, 2025.
Get a feel of what it's like to fly with 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.
Lufthansa
6.8
Okay
7,600 reviews

Comfort

6.8

Food

6.3

Boarding

7.0

Overall

6.8

Entertainment

6.4

Crew

7.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2024

SFO - FRA

Convenient flight to my destination. Good entertainment options on board. I was seated close to some people who had noisy children which made sleeping a bit challenging.
Lufthansa
6.8
Okay
7,600 reviews
Lufthansa
6.8
Okay
7,600 reviews

Comfort

6.8

Food

6.3

Boarding

7.0

Overall

6.8

Entertainment

6.4

Crew

7.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2024

SFO - FRA

Convenient flight to my destination. Good entertainment options on board. I was seated close to some people who had noisy children which made sleeping a bit challenging.
British Airways
6.7
Okay
7,548 reviews
Lufthansa
6.8
Okay
7,600 reviews

Comfort

6.8

Food

6.3

Boarding

7.0

Overall

6.8

Entertainment

6.4

Crew

7.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2024

SFO - FRA

Convenient flight to my destination. Good entertainment options on board. I was seated close to some people who had noisy children which made sleeping a bit challenging.

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 Air Canada and Lufthansa fly from Boston to Cologne in about 14h 15m. The time it takes to get you to your destination can typically vary by up to 5h 40m. Boston and Cologne are separated by a distance of 3576 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

    According to our current data, Lufthansa ($547), and British Airways ($553) offers the cheapest pricing from Boston to Cologne. You may be able to fly from Boston to Cologne for 27% 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, November is the cheapest month in which you can book a flight from Boston to Cologne (average of $238). Flying from Boston to Cologne in June is currently the most expensive (average of $595). 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 2 airlines flying from Boston to Cologne

Discover the top 2 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 December 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest$547Average$727FlexibilityNo cancel feeOn-time76%
British AirwaysCheapest$553Average$685FlexibilityNo cancel feeOn-time70%

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