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Cologne

$229+ 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 5/19. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — CGN
Mar 24 — Mar 311
Tue 3/24
Tue 3/31
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 February 22, 2026.

This Kiwi.com deal was found by Cheapflights users on 2/21. 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 3/87:25 pm
BOS
-
CGN
1 stop32h 30m
Austrian Airlines
Mon 3/238:20 pm
CGN
-
BOS
1 stop23h 45m
Austrian Airlines
Deal found 2/21$444
This Mytrip deal was found by Cheapflights users on 2/21. 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.
Sun 3/84:35 pm
BOS
-
CGN
2 stops24h 50m
Multiple Airlines
Mon 3/238:20 pm
CGN
-
BOS
1 stop23h 45m
Multiple Airlines
Deal found 2/21$468
This United Airlines deal was found by Cheapflights users on 2/20. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/288:05 pm
BOS
-
CGN
1 stop10h 20m
United Airlines
Thu 5/71:00 pm
CGN
-
BOS
2 stops26h 25m
United Airlines
Deal found 2/20$496
This KAYAK deal was found by Cheapflights users on 2/20. 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.
Tue 4/285:10 pm
BOS
-
CGN
1 stop20h 45m
Austrian Airlines
Mon 5/119:35 am
CGN
-
BOS
2 stops38h 45m
Austrian Airlines
Deal found 2/20$497
This AirNGo deal was found by Cheapflights users on 2/18. 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 AirNGo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/231:00 pm
BOS
-
CGN
2 stops17h 10m
Air Canada
Tue 3/106:55 pm
CGN
-
BOS
2 stops43h 37m
Air Canada
Deal found 2/18$524
This FlightHub deal was found by Cheapflights users on 2/20. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/298:05 pm
BOS
-
CGN
1 stop10h 20m
Lufthansa
Sun 5/108:30 am
CGN
-
BOS
1 stop15h 10m
Lufthansa
Deal found 2/20$534
This United Airlines deal was found by Cheapflights users on 2/20. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/288:05 pm
BOS
-
CGN
1 stop10h 20m
United Airlines
Mon 5/111:00 pm
CGN
-
BOS
1 stop10h 40m
United Airlines
Deal found 2/20$536
This United Airlines deal was found by Cheapflights users on 2/20. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/2911:00 am
BOS
-
CGN
2 stops19h 25m
United Airlines
Mon 5/111:00 pm
CGN
-
BOS
1 stop10h 40m
United Airlines
Deal found 2/20$540
This Orbitz deal was found by Cheapflights users on 2/18. 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.
Thu 4/96:15 am
BOS
-
CGN
2 stops31h 15m
Multiple Airlines
Mon 4/208:40 pm
CGN
-
BOS
2 stops27h 17m
Multiple Airlines
Deal found 2/18$545
This KAYAK deal was found by Cheapflights users on 2/20. 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 4/298:05 pm
BOS
-
CGN
1 stop17h 25m
Lufthansa
Fri 5/86:25 pm
CGN
-
BOS
1 stop29h 15m
Lufthansa
Deal found 2/20$546
This United Airlines deal was found by Cheapflights users on 2/20. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/308:05 am
BOS
-
CGN
2 stops22h 15m
United Airlines
Thu 5/71:00 pm
CGN
-
BOS
2 stops26h 25m
United Airlines
Deal found 2/20$550

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 February 22, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$444
(Kiwi.com)

One-way from

$229
(Kiwi.com)

Popular in

January

Cheapest in

March

Average price

$669
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. 5% potential increase in price ($40 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($10 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 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 February 22, 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

Wed 4/29

8:05 pm-12:25 pm

1 stop10h 20m

Cologne Köln/Bonn

Thu 5/7

1:00 pm-9:25 am

2 stops26h 25m

$496

BostonCologne

BOS - CGN

BOSCGN

Boston Logan Intl

Thu 4/9

6:15 am-7:30 pm

2 stops31h 15m

Cologne Köln/Bonn

Mon 4/20

8:40 pm-5:57 pm

2 stops27h 17m

$545

BostonCologne

BOS - CGN

BOSCGN

Boston Logan Intl

Wed 4/29

11:00 am-12:25 pm

2 stops19h 25m

Cologne Köln/Bonn

Mon 5/11

1:00 pm-11:01 am

2 stops28h 01m

$556

BostonCologne

BOS - CGN

BOSCGN

Boston Logan Intl

Wed 2/25

1:00 pm-12:10 pm

2 stops17h 10m

Cologne Köln/Bonn

Sun 3/1

6:55 pm-10:37 pm

2 stops33h 42m

$568

BostonCologne

BOS - CGN

BOSCGN

Boston Logan Intl

Fri 5/1

8:05 pm-5:40 pm

1 stop15h 35m

Cologne Köln/Bonn

Mon 5/11

1:00 pm-5:40 pm

1 stop10h 40m

$586

BostonCologne

BOS - CGN

BOSCGN

Boston Logan Intl

Wed 4/29

11:00 am-12:25 pm

2 stops19h 25m

Cologne Köln/Bonn

Fri 5/8

1:00 pm-12:59 am

2 stops17h 59m

$590

BostonCologne

BOS - CGN

BOSCGN

Boston Logan Intl

Thu 4/30

8:05 pm-7:30 pm

1 stop17h 25m

Cologne Köln/Bonn

Sat 5/9

7:35 pm-3:40 pm

2 stops26h 05m

$603

BostonCologne

BOS - CGN

BOSCGN

Boston Logan Intl

Fri 3/6

7:55 pm-5:10 pm

2 stops39h 15m

Cologne Köln/Bonn

Sat 3/14

8:40 am-10:37 pm

2 stops42h 57m

$617

BostonCologne

BOS - CGN

BOSCGN

Boston Logan Intl

Wed 2/25

7:30 am-4:10 pm

1 stop26h 40m

Cologne Köln/Bonn

Sun 3/1

4:35 pm-7:45 pm

1 stop33h 10m

$621

BostonCologne

BOS - CGN

BOSCGN

Boston Logan Intl

Tue 5/19

8:50 pm-11:05 pm

3 stops20h 15m

$282

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/20

Showing 1-10 of 13 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 February.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 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 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 FlightHub the most. FlightHub 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 February 20, 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 $556). 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 February 22, 2026.
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
7,802 reviews

Comfort

6.8

Boarding

7.0

Entertainment

6.5

Crew

7.6

Food

6.3

Overall

6.8

Reviews

1 / 20
6.0
Good

Anonymous,Dec 2025

SFO - MUC

The coordination between United and Lufthansa teams is poor and confusing.
Lufthansa
6.8
Okay
7,802 reviews
Lufthansa
6.8
Okay
7,802 reviews

Comfort

6.8

Boarding

7.0

Entertainment

6.5

Crew

7.6

Food

6.3

Overall

6.8

Reviews

1 / 20
6.0
Good

Anonymous,Dec 2025

SFO - MUC

The coordination between United and Lufthansa teams is poor and confusing.
British Airways
6.7
Okay
7,757 reviews
Lufthansa
6.8
Okay
7,802 reviews

Comfort

6.8

Boarding

7.0

Entertainment

6.5

Crew

7.6

Food

6.3

Overall

6.8

Reviews

1 / 20
6.0
Good

Anonymous,Dec 2025

SFO - MUC

The coordination between United and Lufthansa teams is poor and confusing.

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 United Airlines and Air Canada fly from Boston to Cologne in about 10h 20m. The time it takes to get you to your destination can typically vary by up to 6h 50m. 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), and British Airways ($551) offers the cheapest pricing from Boston to Cologne. You may be able to fly from Boston to Cologne for 29% 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 $556). 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

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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 February 22, 2026.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest$508Average$714FlexibilityNo cancel feeOn-time76%
British AirwaysCheapest$551Average$681FlexibilityNo cancel feeOn-time70%

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