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$355+ 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 7/18. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — CGN
Jun 8 — Jun 151
Mon 6/8
Mon 6/15
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 May 9, 2026.

This FlightHub deal was found by Cheapflights users on 5/6. 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.
Thu 10/89:50 pm
BOS
-
CGN
1 stop14h 20m
Turkish Airlines
Mon 10/197:10 pm
CGN
-
BOS
1 stop30h 45m
Turkish Airlines
Deal found 5/6$759
This oojo deal was found by Cheapflights users on 5/8. 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.
Thu 10/19:50 pm
BOS
-
CGN
1 stop14h 20m
Turkish Airlines
Mon 10/57:10 pm
CGN
-
BOS
1 stop30h 45m
Turkish Airlines
Deal found 5/8$782
This Cheapflightsfares deal was found by Cheapflights users on 5/7. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/278:40 pm
BOS
-
CGN
1 stop10h 10m
Lufthansa
Sat 12/51:35 pm
CGN
-
BOS
1 stop11h 00m
Lufthansa
Deal found 5/7$792
This Gotogate deal was found by Cheapflights users on 5/6. 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.
Thu 10/810:40 am
BOS
-
CGN
2 stops25h 00m
Multiple Airlines
Mon 10/196:05 pm
CGN
-
BOS
1 stop29h 35m
Multiple Airlines
Deal found 5/6$796
This FlightHub deal was found by Cheapflights users on 5/8. 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.
Sat 11/218:00 pm
BOS
-
CGN
1 stop32h 35m
Turkish Airlines
Thu 11/266:15 pm
CGN
-
BOS
1 stop29h 50m
Turkish Airlines
Deal found 5/8$805
This Gotogate deal was found by Cheapflights users on 5/8. 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.
Sun 5/1010:45 am
BOS
-
CGN
2 stops28h 50m
Multiple Airlines
Mon 5/258:10 pm
CGN
-
BOS
1 stop27h 30m
Multiple Airlines
Deal found 5/8$819
This flugladen.de deal was found by Cheapflights users on 5/7. 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 flugladen.de is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/108:05 pm
BOS
-
CGN
1 stop15h 15m
Lufthansa
Mon 5/256:05 pm
CGN
-
BOS
1 stop29h 35m
Lufthansa
Deal found 5/7$821

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 May 9, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$759
(FlightHub)

One-way from

$355
(Kiwi.com)

Popular in

June

Cheapest in

March

Average price

$729
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. 11% potential increase in price ($94 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($26 potential savings vs. average RT price).
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Average for round-trip flights in May 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 May 9, 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
Quickest round-trip

BostonCologne

BOS - CGN

BOSCGN

Boston Logan Intl

Mon 7/27

8:05 pm-12:25 pm

1 stop10h 20m

Cologne Köln/Bonn

Tue 8/11

1:05 pm-7:55 pm

2 stops12h 50m

$948

BostonCologne

BOS - CGN

BOSCGN

Boston Logan Intl

Thu 6/4

12:30 pm-10:15 pm

3 stops27h 45m

Cologne Köln/Bonn

Sun 6/7

6:10 pm-8:20 pm

3 stops32h 10m

$984

BostonCologne

BOS - CGN

BOSCGN

Boston Logan Intl

Thu 7/30

3:35 pm-12:25 pm

2 stops14h 50m

Cologne Köln/Bonn

Wed 8/12

1:05 pm-9:50 am

2 stops26h 45m

$996

BostonCologne

BOS - CGN

BOSCGN

Boston Logan Intl

Fri 6/5

10:35 am-4:45 pm

2 stops24h 10m

Cologne Köln/Bonn

Fri 6/12

10:55 pm-10:39 pm

2 stops29h 44m

$1,089

BostonCologne

BOS - CGN

BOSCGN

Boston Logan Intl

Thu 6/18

3:25 pm-10:15 pm

3 stops24h 50m

Cologne Köln/Bonn

Thu 6/25

6:50 am-8:55 pm

3 stops20h 05m

$1,147

BostonCologne

BOS - CGN

BOSCGN

Boston Logan Intl

Wed 6/17

8:05 pm-7:30 pm

1 stop17h 25m

Cologne Köln/Bonn

Thu 6/25

1:05 pm-5:40 pm

1 stop10h 35m

$1,149

BostonCologne

BOS - CGN

BOSCGN

Boston Logan Intl

Wed 7/8

3:35 pm-12:25 pm

2 stops14h 50m

Cologne Köln/Bonn

Mon 7/13

1:05 pm-9:27 pm

2 stops14h 22m

$1,170
Cheapest one-way

BostonCologne

BOS - CGN

BOSCGN

Boston Logan Intl

Sat 7/18

8:50 pm-9:30 am

3 stops30h 40m

$355

BostonCologne

BOS - CGN

BOSCGN

Boston Logan Intl

Sun 6/21

7:10 am-10:50 pm

3 stops57h 40m

$399

BostonCologne

BOS - CGN

BOSCGN

Boston Logan Intl

Thu 9/17

9:40 pm-7:20 pm

2 stops15h 40m

$413

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/8

Showing 1-10 of 16 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 May.
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 $1,035). 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.

How much does it cost to fly round-trip from Boston to Cologne?

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 May 9, 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
9,693 reviews

Boarding

7.7

Food

6.6

Crew

8.1

Comfort

7.3

Entertainment

7.1

Overall

7.4

Reviews

1 / 20
8.0
Excellent

Anonymous,Apr 2026

DFW - EWR

The flight was on time. Crew was friendly. Will fly again. The seats was comfortable.
United Airlines
7.4
Good
9,693 reviews
United Airlines
7.4
Good
9,693 reviews

Boarding

7.7

Food

6.6

Crew

8.1

Comfort

7.3

Entertainment

7.1

Overall

7.4

Reviews

1 / 20
8.0
Excellent

Anonymous,Apr 2026

DFW - EWR

The flight was on time. Crew was friendly. Will fly again. The seats was comfortable.
Lufthansa
6.8
Okay
7,984 reviews
United Airlines
7.4
Good
9,693 reviews

Boarding

7.7

Food

6.6

Crew

8.1

Comfort

7.3

Entertainment

7.1

Overall

7.4

Reviews

1 / 20
8.0
Excellent

Anonymous,Apr 2026

DFW - EWR

The flight was on time. Crew was friendly. Will fly again. The seats was comfortable.
British Airways
6.7
Okay
7,954 reviews
United Airlines
7.4
Good
9,693 reviews

Boarding

7.7

Food

6.6

Crew

8.1

Comfort

7.3

Entertainment

7.1

Overall

7.4

Reviews

1 / 20
8.0
Excellent

Anonymous,Apr 2026

DFW - EWR

The flight was on time. Crew was friendly. Will fly again. The seats was comfortable.

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 4h 30m. 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 ($575) offers the cheapest pricing from Boston to Cologne. You may be able to fly from Boston to Cologne for 32% 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 $1,035). 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 May 9, 2026.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest$508Average$710FlexibilityNo cancel feeOn-time76%
British AirwaysCheapest$551Average$681FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$575Average$1,146FlexibilityNo cancel feeOn-time69%

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