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Cologne

$287+ 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 1/28. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — CGN
Feb 20 — Feb 271
Fri 2/20
Fri 2/27
1 adult, Economy
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Cheap 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 January 21, 2026.

This Kiwi.com deal was found by Cheapflights users on 1/21. 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.
Sun 2/88:40 pm
BOS
-
CGN
1 stop9h 55m
Multiple Airlines
Mon 2/239:40 am
CGN
-
BOS
1 stop34h 25m
Multiple Airlines
Deal found 1/21$438
This Mytrip deal was found by Cheapflights users on 1/21. 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 5/45:25 am
BOS
-
CGN
2 stops24h 55m
Multiple Airlines
Mon 5/118:40 pm
CGN
-
BOS
2 stops30h 47m
Multiple Airlines
Deal found 1/21$458
This Flightnetwork deal was found by Cheapflights users on 1/21. 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.
Sun 2/810:15 am
BOS
-
CGN
2 stops30h 10m
Air Canada
Mon 2/236:55 pm
CGN
-
BOS
2 stops44h 37m
Air Canada
Deal found 1/21$480
This Air Canada deal was found by Cheapflights users on 1/20. 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.
Wed 2/45:30 am
BOS
-
CGN
2 stops33h 45m
Air Canada
Tue 2/106:45 am
CGN
-
BOS
2 stops18h 57m
Air Canada
Deal found 1/20$481
This KAYAK deal was found by Cheapflights users on 1/20. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/48:40 pm
BOS
-
CGN
1 stop10h 10m
Lufthansa
Tue 2/101:35 pm
CGN
-
BOS
1 stop11h 00m
Lufthansa
Deal found 1/20$482
This Orbitz deal was found by Cheapflights users on 1/20. 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 4/208:05 pm
BOS
-
CGN
1 stop10h 15m
Multiple Airlines
Mon 4/278:40 pm
CGN
-
BOS
2 stops27h 17m
Multiple Airlines
Deal found 1/20$483
This Air Canada deal was found by Cheapflights users on 1/20. 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.
Wed 2/45:30 am
BOS
-
CGN
2 stops33h 45m
Air Canada
Wed 2/116:45 am
CGN
-
BOS
2 stops35h 27m
Air Canada
Deal found 1/20$485
This KAYAK deal was found by Cheapflights users on 1/20. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/48:40 pm
BOS
-
CGN
1 stop10h 10m
Lufthansa
Mon 2/98:20 pm
CGN
-
BOS
1 stop28h 15m
Lufthansa
Deal found 1/20$493
This FlightHub deal was found by Cheapflights users on 1/19. 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.
Wed 4/155:30 am
BOS
-
CGN
2 stops24h 50m
Multiple Airlines
Mon 4/208:10 pm
CGN
-
BOS
1 stop27h 30m
Multiple Airlines
Deal found 1/19$496
This KAYAK deal was found by Cheapflights users on 1/20. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/41:31 pm
BOS
-
CGN
2 stops24h 04m
Austrian Airlines
Mon 2/99:40 am
CGN
-
BOS
2 stops37h 34m
Austrian Airlines
Deal found 1/20$498

Find 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 January 21, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

Expedia
3 stars

Round-trip from

$438
(Kiwi.com)

One-way from

$287
(Kiwi.com)

Popular in

January

Cheapest in

March

Average price

$824
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
One-way flight from Boston Logan Intl to Cologne Köln/Bonn
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($67 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($9 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
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 January 21, 2026.
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

Sun 2/8

8:40 pm-12:35 pm

1 stop9h 55m

Cologne Köln/Bonn

Mon 2/23

9:40 am-2:05 pm

1 stop34h 25m

$438

BostonCologne

BOS - CGN

BOSCGN

Boston Logan Intl

Wed 2/4

5:30 am-9:15 pm

2 stops33h 45m

Cologne Köln/Bonn

Thu 2/12

6:45 am-9:32 am

2 stops32h 47m

$481

BostonCologne

BOS - CGN

BOSCGN

Boston Logan Intl

Wed 2/4

5:30 am-9:15 pm

2 stops33h 45m

Cologne Köln/Bonn

Wed 2/11

6:45 am-12:12 pm

2 stops35h 27m

$485

BostonCologne

BOS - CGN

BOSCGN

Boston Logan Intl

Mon 4/20

8:05 pm-7:30 pm

1 stop17h 25m

Cologne Köln/Bonn

Mon 4/27

8:10 pm-5:40 pm

1 stop27h 30m

$493

BostonCologne

BOS - CGN

BOSCGN

Boston Logan Intl

Wed 4/15

5:30 am-12:20 pm

2 stops24h 50m

Cologne Köln/Bonn

Mon 4/20

8:10 pm-5:40 pm

1 stop27h 30m

$496

BostonCologne

BOS - CGN

BOSCGN

Boston Logan Intl

Mon 4/20

8:05 pm-12:20 pm

1 stop10h 15m

Cologne Köln/Bonn

Mon 4/27

1:00 pm-3:30 pm

2 stops32h 30m

$502

BostonCologne

BOS - CGN

BOSCGN

Boston Logan Intl

Thu 2/19

8:40 pm-12:35 pm

1 stop9h 55m

Cologne Köln/Bonn

Tue 2/24

1:35 pm-6:35 pm

1 stop11h 00m

$507

BostonCologne

BOS - CGN

BOSCGN

Boston Logan Intl

Thu 3/5

3:35 pm-12:10 pm

2 stops14h 35m

Cologne Köln/Bonn

Thu 3/12

1:35 pm-7:35 pm

1 stop11h 00m

$510

BostonCologne

BOS - CGN

BOSCGN

Boston Logan Intl

Thu 2/19

2:20 pm-7:35 pm

2 stops23h 15m

Cologne Köln/Bonn

Tue 2/24

5:55 pm-1:35 pm

2 stops25h 40m

$512

BostonCologne

BOS - CGN

BOSCGN

Boston Logan Intl

Thu 3/5

8:40 pm-12:35 pm

1 stop9h 55m

Cologne Köln/Bonn

Thu 3/12

1:35 pm-7:35 pm

1 stop11h 00m

$523

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/21

Showing 1-10 of 12 results
1
2

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 January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust 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 Boston-Cologne flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Boston-Cologne flight deals on Cheapflights vs. FlightHub >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 Expedia the most. Expedia 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

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

Use this chart to determine the optimal time to book a round-trip flight from Boston to Cologne. Price data was last updated on January 16, 2026.

The best time to book flights from Boston to Cologne is 86 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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 $588). 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 January 21, 2026.
Get a feel of what it's like to fly with United 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.
United Airlines
7.4
Good
9,191 reviews

Overall

7.4

Comfort

7.3

Crew

8.1

Entertainment

7.1

Food

6.6

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
United Airlines
7.4
Good
9,191 reviews
United Airlines
7.4
Good
9,191 reviews

Overall

7.4

Comfort

7.3

Crew

8.1

Entertainment

7.1

Food

6.6

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
Lufthansa
6.8
Okay
7,738 reviews
United Airlines
7.4
Good
9,191 reviews

Overall

7.4

Comfort

7.3

Crew

8.1

Entertainment

7.1

Food

6.6

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
British Airways
6.7
Okay
7,689 reviews
United Airlines
7.4
Good
9,191 reviews

Overall

7.4

Comfort

7.3

Crew

8.1

Entertainment

7.1

Food

6.6

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

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 17h 25m. The time it takes to get you to your destination can typically vary by up to 16h 20m. 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 ($508), British Airways ($551), and United Airlines ($682) offers the cheapest pricing from Boston to Cologne. You may be able to fly from Boston to Cologne for 30% 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 $588). 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 January 21, 2026.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest$508Average$714FlexibilityNo cancel feeOn-time76%
British AirwaysCheapest$551Average$681FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$682Average$1,146FlexibilityNo cancel feeOn-time69%

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