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Cologne

$305+ 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 8/26. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — CGN
Jul 31 — Aug 71
Fri 7/31
Fri 8/7
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 July 1, 2026.

This Kiwi.com deal was found by Cheapflights users on 6/30. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/1610:55 pm
BOS
-
CGN
1 stop30h 00m
Multiple Airlines
Tue 9/2912:00 pm
CGN
-
BOS
2 stops39h 05m
Multiple Airlines
Deal found 6/30$608
This Kiwi.com deal was found by Cheapflights users on 7/1. 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 9/109:15 pm
BOS
-
CGN
1 stop19h 15m
Multiple Airlines
Wed 9/2310:35 pm
CGN
-
BOS
2 stops28h 30m
Multiple Airlines
Deal found 7/1$651
This Kiwi.com deal was found by Cheapflights users on 7/1. 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 9/149:15 pm
BOS
-
CGN
1 stop19h 35m
Multiple Airlines
Wed 9/2310:35 pm
CGN
-
BOS
2 stops28h 30m
Multiple Airlines
Deal found 7/1$662
This Kiwi.com deal was found by Cheapflights users on 7/1. 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 9/109:15 pm
BOS
-
CGN
1 stop19h 15m
Multiple Airlines
Tue 9/228:45 pm
CGN
-
BOS
2 stops30h 20m
Multiple Airlines
Deal found 7/1$666
This Mytrip deal was found by Cheapflights users on 6/27. 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 9/168:50 pm
BOS
-
CGN
2 stops16h 40m
Multiple Airlines
Wed 9/3010:50 pm
CGN
-
BOS
2 stops27h 30m
Multiple Airlines
Deal found 6/27$702
This Kiwi.com deal was found by Cheapflights users on 6/28. 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 8/209:15 pm
BOS
-
CGN
1 stop19h 15m
Multiple Airlines
Fri 8/2810:55 pm
CGN
-
BOS
2 stops26h 20m
Multiple Airlines
Deal found 6/28$718
This Kiwi.com deal was found by Cheapflights users on 6/28. 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.
Sat 8/229:15 pm
BOS
-
CGN
1 stop17h 50m
Multiple Airlines
Fri 8/2810:55 pm
CGN
-
BOS
2 stops26h 20m
Multiple Airlines
Deal found 6/28$721
This KAYAK deal was found by Cheapflights users on 6/29. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/112:35 pm
BOS
-
CGN
2 stops16h 15m
Lufthansa
Thu 11/191:35 pm
CGN
-
BOS
1 stop11h 00m
Lufthansa
Deal found 6/29$722
This Mytrip deal was found by Cheapflights users on 6/26. 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 9/68:50 pm
BOS
-
CGN
2 stops20h 30m
Multiple Airlines
Sun 9/279:30 pm
CGN
-
BOS
3 stops31h 10m
Multiple Airlines
Deal found 6/26$727

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 July 1, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$608
(Kiwi.com)

One-way from

$305
(Kiwi.com)

Popular in

June

Cheapest in

March

Average price

$924
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. 16% potential increase in price ($157 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($34 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 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 July 1, 2026.
Use the filters below to find and compare flights from Boston to Cologne that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BostonCologne

BOS - CGN

BOSCGN

Boston Logan Intl

Wed 9/16

8:50 pm-7:30 pm

2 stops16h 40m

Cologne Köln/Bonn

Tue 9/29

7:10 am-8:20 pm

2 stops19h 10m

$738
Quickest round-trip

BostonCologne

BOS - CGN

BOSCGN

Boston Logan Intl

Fri 9/11

8:05 pm-12:25 pm

1 stop10h 20m

Cologne Köln/Bonn

Fri 9/18

1:05 pm-5:40 pm

1 stop10h 35m

$847

BostonCologne

BOS - CGN

BOSCGN

Boston Logan Intl

Mon 9/14

8:05 pm-5:20 pm

1 stop15h 15m

Cologne Köln/Bonn

Sun 9/20

8:30 am-5:40 pm

1 stop15h 10m

$847

BostonCologne

BOS - CGN

BOSCGN

Boston Logan Intl

Fri 9/11

8:05 pm-12:25 pm

1 stop10h 20m

Cologne Köln/Bonn

Tue 9/22

8:30 am-5:40 pm

1 stop15h 10m

$847

BostonCologne

BOS - CGN

BOSCGN

Boston Logan Intl

Tue 9/22

9:50 pm-9:25 am

1 stop29h 35m

Cologne Köln/Bonn

Sat 9/26

2:50 pm-7:55 pm

1 stop35h 05m

$857

BostonCologne

BOS - CGN

BOSCGN

Boston Logan Intl

Fri 8/21

8:05 pm-12:25 pm

1 stop10h 20m

Cologne Köln/Bonn

Sat 8/29

1:05 pm-5:40 pm

1 stop10h 35m

$866

BostonCologne

BOS - CGN

BOSCGN

Boston Logan Intl

Fri 8/21

8:05 pm-12:25 pm

1 stop10h 20m

Cologne Köln/Bonn

Sun 8/23

1:05 pm-5:40 pm

1 stop10h 35m

$866

BostonCologne

BOS - CGN

BOSCGN

Boston Logan Intl

Fri 9/4

8:05 pm-12:25 pm

1 stop10h 20m

Cologne Köln/Bonn

Sun 9/13

8:30 am-8:10 pm

2 stops17h 40m

$874

BostonCologne

BOS - CGN

BOSCGN

Boston Logan Intl

Fri 9/11

8:05 pm-12:25 pm

1 stop10h 20m

Cologne Köln/Bonn

Sun 9/20

1:05 pm-5:40 pm

1 stop10h 35m

$887
Cheapest one-way

BostonCologne

BOS - CGN

BOSCGN

Boston Logan Intl

Sun 12/27

8:40 pm-7:25 pm

1 stop16h 45m

$316

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/29

Showing 1-10 of 18 resultsSorted by cheapest first
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 July.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
OvagoPrice 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

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

Currently, March is the cheapest month in which you can book a flight from Boston to Cologne (average of $593). Flying from Boston to Cologne in June is currently the most expensive (average of $1,152). 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 July 1, 2026.
Get a feel of what it's like to fly with United Airlines,Lufthansa, andBritish 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
9,913 reviews

Crew

8.1

Comfort

7.3

Boarding

7.7

Overall

7.4

Food

6.6

Entertainment

7.1

Reviews

1 / 20
4.0
Okay

Kevin,Dec 2025

BOS - EWR

Seems like every United flight has a delay and it’s always someone else’s fault. Step up and take some accountability
United Airlines
7.4
Good
9,913 reviews
United Airlines
7.4
Good
9,913 reviews

Crew

8.1

Comfort

7.3

Boarding

7.7

Overall

7.4

Food

6.6

Entertainment

7.1

Reviews

1 / 20
4.0
Okay

Kevin,Dec 2025

BOS - EWR

Seems like every United flight has a delay and it’s always someone else’s fault. Step up and take some accountability
Lufthansa
6.8
Okay
8,109 reviews
United Airlines
7.4
Good
9,913 reviews

Crew

8.1

Comfort

7.3

Boarding

7.7

Overall

7.4

Food

6.6

Entertainment

7.1

Reviews

1 / 20
4.0
Okay

Kevin,Dec 2025

BOS - EWR

Seems like every United flight has a delay and it’s always someone else’s fault. Step up and take some accountability
British Airways
6.7
Okay
8,087 reviews
United Airlines
7.4
Good
9,913 reviews

Crew

8.1

Comfort

7.3

Boarding

7.7

Overall

7.4

Food

6.6

Entertainment

7.1

Reviews

1 / 20
4.0
Okay

Kevin,Dec 2025

BOS - EWR

Seems like every United flight has a delay and it’s always someone else’s fault. Step up and take some accountability

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 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 . 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 ($508), British Airways ($527), and United Airlines ($575) 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, March is the cheapest month in which you can book a flight from Boston to Cologne (average of $593). Flying from Boston to Cologne in June is currently the most expensive (average of $1,152). 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 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 July 1, 2026.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest$508Average$718FlexibilityNo cancel feeOn-time76%
British AirwaysCheapest$527Average$681FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$575Average$1,146FlexibilityNo cancel feeOn-time69%

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