HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Cologne

$352+ 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 5/31. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — CGN
May 7 — May 141
Thu 5/7
Thu 5/14
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Boston to Cologne with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 April 7, 2026.

This Kiwi.com deal was found by Cheapflights users on 4/5. 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 4/239:50 pm
BOS
-
CGN
1 stop14h 20m
Turkish Airlines
Wed 5/610:25 am
CGN
-
BOS
1 stop15h 30m
Turkish Airlines
Deal found 4/5$646
This Cheapflightsfares deal was found by Cheapflights users on 4/6. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/58:05 pm
BOS
-
CGN
1 stop17h 25m
Lufthansa
Tue 5/128:30 am
CGN
-
BOS
1 stop15h 10m
Lufthansa
Deal found 4/6$666
This FlightHub deal was found by Cheapflights users on 4/5. 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.
Fri 4/249:50 pm
BOS
-
CGN
1 stop14h 20m
Turkish Airlines
Sat 5/22:50 pm
CGN
-
BOS
1 stop35h 05m
Turkish Airlines
Deal found 4/5$674
This Cheapflightsfares deal was found by Cheapflights users on 4/5. 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.
Sun 4/268:05 pm
BOS
-
CGN
1 stop15h 15m
Lufthansa
Sun 5/38:30 am
CGN
-
BOS
1 stop15h 10m
Lufthansa
Deal found 4/5$712
This FlightHub deal was found by Cheapflights users on 4/6. 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.
Tue 5/510:45 am
BOS
-
CGN
2 stops19h 40m
Air Canada
Tue 5/121:05 pm
CGN
-
BOS
2 stops14h 22m
Air Canada
Deal found 4/6$713
This Gotogate deal was found by Cheapflights users on 4/5. 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 4/2310:45 am
BOS
-
CGN
2 stops28h 10m
Multiple Airlines
Wed 5/61:05 pm
CGN
-
BOS
1 stop10h 35m
Multiple Airlines
Deal found 4/5$719
This Cheapflightsfares deal was found by Cheapflights users on 4/3. 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.
Wed 5/208:05 pm
BOS
-
CGN
1 stop10h 20m
Lufthansa
Tue 5/268:30 am
CGN
-
BOS
1 stop15h 10m
Lufthansa
Deal found 4/3$721
This United Airlines deal was found by Cheapflights users on 4/5. 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 4/235:25 pm
BOS
-
CGN
2 stops13h 00m
United Airlines
Wed 5/68:30 am
CGN
-
BOS
1 stop15h 10m
United Airlines
Deal found 4/5$752
This Justfly.com deal was found by Cheapflights users on 4/3. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/19:50 pm
BOS
-
CGN
1 stop29h 35m
Turkish Airlines
Fri 5/87:10 pm
CGN
-
BOS
1 stop30h 45m
Turkish Airlines
Deal found 4/3$753
This Air Canada deal was found by Cheapflights users on 4/5. 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.
Thu 4/235:30 am
BOS
-
CGN
2 stops33h 25m
Air Canada
Wed 5/61:05 pm
CGN
-
BOS
2 stops14h 22m
Air Canada
Deal found 4/5$755

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 April 7, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$646
(Kiwi.com)

One-way from

$352
(Kiwi.com)

Popular in

June

Cheapest in

March

Average price

$746
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 ($41 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($15 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 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 April 7, 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

Thu 4/23

5:25 pm-12:25 pm

2 stops13h 00m

Cologne Köln/Bonn

Wed 5/6

8:30 am-5:40 pm

1 stop15h 10m

$752

BostonCologne

BOS - CGN

BOSCGN

Boston Logan Intl

Fri 5/1

8:05 am-5:40 pm

2 stops27h 35m

Cologne Köln/Bonn

Fri 5/8

1:05 pm-10:18 am

2 stops27h 13m

$767

BostonCologne

BOS - CGN

BOSCGN

Boston Logan Intl

Thu 4/30

8:05 pm-12:25 pm

1 stop10h 20m

Cologne Köln/Bonn

Mon 5/4

8:30 am-7:55 pm

2 stops41h 25m

$770
Quickest round-trip

BostonCologne

BOS - CGN

BOSCGN

Boston Logan Intl

Mon 7/27

8:05 pm-5:20 pm

1 stop15h 15m

Cologne Köln/Bonn

Tue 8/11

1:05 pm-5:40 pm

1 stop10h 35m

$897

BostonCologne

BOS - CGN

BOSCGN

Boston Logan Intl

Thu 5/21

5:30 pm-10:30 pm

2 stops23h 00m

Cologne Köln/Bonn

Tue 5/26

7:10 am-9:05 pm

1 stop19h 55m

$949
Cheapest one-way

BostonCologne

BOS - CGN

BOSCGN

Boston Logan Intl

Sat 5/2

11:00 pm-9:10 am

2 stops52h 10m

$396

BostonCologne

BOS - CGN

BOSCGN

Boston Logan Intl

Sun 4/19

12:15 pm-7:30 pm

3 stops25h 15m

$420

BostonCologne

BOS - CGN

BOSCGN

Boston Logan Intl

Sat 8/22

10:45 pm-7:50 am

2 stops27h 05m

$428

BostonCologne

BOS - CGN

BOSCGN

Boston Logan Intl

Sun 4/19

10:45 am-5:20 pm

2 stops24h 35m

$486

BostonCologne

BOS - CGN

BOSCGN

Boston Logan Intl

Sat 8/8

7:15 pm-12:25 pm

2 stops35h 10m

$516

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/2

Showing 1-10 of 14 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 April.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
OvagoPrice 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 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, November is the cheapest month in which you can book a flight from Boston to Cologne (average of $227). 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.

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 April 7, 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
9,550 reviews

Comfort

7.3

Crew

8.1

Food

6.6

Boarding

7.7

Overall

7.4

Entertainment

7.1

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
9,550 reviews
United Airlines
7.4
Good
9,550 reviews

Comfort

7.3

Crew

8.1

Food

6.6

Boarding

7.7

Overall

7.4

Entertainment

7.1

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
7,896 reviews
United Airlines
7.4
Good
9,550 reviews

Comfort

7.3

Crew

8.1

Food

6.6

Boarding

7.7

Overall

7.4

Entertainment

7.1

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
7,859 reviews
United Airlines
7.4
Good
9,550 reviews

Comfort

7.3

Crew

8.1

Food

6.6

Boarding

7.7

Overall

7.4

Entertainment

7.1

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 United Airlines fly from Boston to Cologne in about 13h. 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 ($551), and United Airlines ($575) 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 $227). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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 April 7, 2026.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest$508Average$699FlexibilityNo cancel feeOn-time76%
British AirwaysCheapest$551Average$689FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$575Average$1,146FlexibilityNo cancel feeOn-time69%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.