What are the cheapest airlines flying from Boston to Cologne round-trip?

According to our current data, Lufthansa ($510), British Airways ($556), and Air Canada ($565) offers the cheapest pricing from Boston to Cologne. You may be able to fly from Boston to Cologne for 41% less than the average price by searching for these airlines.

What is the cheapest day to fly from Boston to Cologne?

Travelers seeking maximum savings on their Boston to Cologne flight should consider departing on Tuesday afternoons when fares are most often at their lowest. Saturday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

In terms of precipitation, rainfall in Cologne ranges from 2.0 - 3.5 inches per month. June is typically the wettest month, when rainfall can reach 3.5 in. February is typically the driest time to visit Cologne when rainfall is around 2.0 in.

If weather is an important factor for your trip to Cologne, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

What are the most popular airlines that fly from Boston to Cologne?

Consider British Airways, Lufthansa or Turkish Airlines when booking your flight. These represent the most popular airlines when flying from Boston to Cologne.

What is the cheapest day to fly round-trip from Boston to Cologne?

Users have found that leaving on a Monday can be a cost-effective option. It’s possible to save up to 72% on your flight compared to booking on days when demand is much higher.

What is the cheapest month to fly from Boston to Cologne?

Our data shows that February tends to be the cheapest month to fly to Cologne from Boston. Users have commonly found prices around $867 for the month, but tickets can be as low as $621. Due to multiple factors, prepare for potentially higher prices in December.

What is the cheapest time of day to fly from BOS to CGN?

When flying from Boston to Cologne, the time of day you fly usually plays a role in the price. Save by searching for a flight in the morning, which can drop the price by up to 28% versus a flight at noon.

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.

$275+ Flights from Boston to Cologne

Home Search by date Vacation packages Hotels Flight deals Car rental Travel tips & news

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

Round-trip from	$484 (Justfly.com)
One-way from	$275 (Trip.com)
Popular in	December
Cheapest in	February
Average price	$721

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 ($164 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 8% potential price decrease ($72 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in July 2025

Search Deals

Find 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 julio 3, 2025.

mar. 11/258:40 pmBOS - CGN

1 stop9h 55mMultiple Airlines

lun. 12/88:20 pmCGN - BOS

1 stop23h 45mMultiple Airlines

Deal found 7/1

$484

lun. 9/18:05 pmBOS - CGN

1 stop13h 45mLufthansa

jue. 9/1812:55 pmCGN - BOS

1 stop10h 45mLufthansa

Deal found 7/2

$510

mié. 7/238:05 pmBOS - CGN

1 stop18h 55mBritish Airways

lun. 7/289:15 pmCGN - BOS

1 stop20h 05mBritish Airways

Deal found 7/2

$556

jue. 11/203:40 pmBOS - CGN

2 stops13h 30mAir Canada

mié. 12/36:45 amCGN - BOS

2 stops18h 27mAir Canada

Deal found 7/1

$565

mié. 9/179:55 pmBOS - CGN

1 stop17h 05mAmerican Airlines

dom. 9/2110:15 amCGN - BOS

2 stops15h 35mAmerican Airlines

Deal found 7/1

$608

vie. 8/153:16 pmBOS - CGN

2 stops18h 34mUnited Airlines

vie. 8/2212:55 pmCGN - BOS

1 stop10h 45mUnited Airlines

Deal found 7/1

$804

mar. 9/309:35 pmBOS - CGN

1 stop34h 15mTurkish Airlines

jue. 10/27:10 pmCGN - BOS

1 stop30h 30mTurkish Airlines

Deal found 7/2

$922

Best flights from Boston to Cologne
Discover carefully curated flight deals from Boston to Cologne that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated julio 3, 2025.

mar. 11/258:40 pmBOS - CGN

1 stop9h 55mMultiple Airlines

lun. 12/88:20 pmCGN - BOS

1 stop23h 45mMultiple Airlines

Deal found 7/1

$484

lun. 9/18:05 pmBOS - CGN

1 stop13h 45mLufthansa

jue. 9/1812:55 pmCGN - BOS

1 stop10h 45mLufthansa

Deal found 7/2

$510

mié. 7/238:05 pmBOS - CGN

1 stop18h 55mBritish Airways

lun. 7/289:15 pmCGN - BOS

1 stop20h 05mBritish Airways

Deal found 7/2

$556

jue. 11/203:40 pmBOS - CGN

2 stops13h 30mAir Canada

mié. 12/36:45 amCGN - BOS

2 stops18h 27mAir Canada

Deal found 7/1

$565

mié. 9/179:55 pmBOS - CGN

1 stop17h 05mAmerican Airlines

dom. 9/2110:15 amCGN - BOS

2 stops15h 35mAmerican Airlines

Deal found 7/1

$608

vie. 8/153:16 pmBOS - CGN

2 stops18h 34mUnited Airlines

vie. 8/2212:55 pmCGN - BOS

1 stop10h 45mUnited Airlines

Deal found 7/1

$804

mar. 9/309:35 pmBOS - CGN

1 stop34h 15mTurkish Airlines

jue. 10/27:10 pmCGN - BOS

1 stop30h 30mTurkish Airlines

Deal found 7/2

$922

Last-minute flights from Boston to Cologne
Discover last-minute flight deals from Boston to Cologne. Data last updated julio 3, 2025 and is based on user searches.

lun. 7/79:35 pmBOS - CGN

1 stop14h 35mTurkish Airlines

mié. 7/2310:30 amCGN - BOS

1 stop15h 10mTurkish Airlines

Deal found 7/2

$971

mié. 7/238:05 pmBOS - CGN

1 stop18h 55mBritish Airways

lun. 7/289:15 pmCGN - BOS

1 stop20h 05mBritish Airways

Deal found 7/2

$556

jue. 7/244:40 pmBOS - CGN

2 stops14h 55mAmerican Airlines

lun. 7/2810:50 amCGN - BOS

2 stops18h 44mAmerican Airlines

Deal found 7/3

$914

vie. 7/257:20 pmBOS - CGN

2 stops31h 55mMultiple Airlines

vie. 8/82:20 pmCGN - BOS

2 stops25h 59mMultiple Airlines

Deal found 7/1

$844

vie. 8/155:50 amBOS - CGN

2 stops28h 00mAir Canada

vie. 8/224:30 pmCGN - BOS

2 stops23h 00mAir Canada

Deal found 7/1

$684

vie. 8/158:05 pmBOS - CGN

1 stop10h 10mLufthansa

vie. 8/228:35 amCGN - BOS

1 stop15h 05mLufthansa

Deal found 7/1

$709

vie. 8/153:16 pmBOS - CGN

2 stops18h 34mUnited Airlines

vie. 8/2212:55 pmCGN - BOS

1 stop10h 45mUnited Airlines

Deal found 7/1

$804

One-way flights from Boston to Cologne
Search for one-way flight options from Boston to Cologne. Find affordable one-way fares based on user searches. Data last updated julio 3, 2025.

mié. 10/18:50 pmBOS - CGN

2 stops19h 30mMultiple Airlines

Deal found 7/2

$275

mié. 7/235:05 pmBOS - CGN

1 stop10h 05mSWISS

Deal found 7/2

$553

mié. 10/18:05 pmBOS - CGN

1 stop13h 45mLufthansa

Deal found 7/2

$1,367

Cheapflights Fare Finder

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

BostonCologne

BOS - CGN

BOSCGN

Boston Logan Intl

lun. 9/1

8:05 pm-3:50 pm

1 stop13h 45m

Cologne Köln/Bonn

jue. 9/18

12:55 pm-5:40 pm

1 stop10h 45m

$510

BostonCologne

BOS - CGN

BOSCGN

Boston Logan Intl

mié. 7/23

8:05 pm-9:00 pm

1 stop18h 55m

Cologne Köln/Bonn

lun. 7/28

9:15 pm-11:20 am

1 stop20h 05m

$556

BostonCologne

BOS - CGN

BOSCGN

Boston Logan Intl

mié. 9/17

9:55 pm-9:00 pm

1 stop17h 05m

Cologne Köln/Bonn

dom. 9/21

10:15 am-7:50 pm

2 stops15h 35m

$608

BostonCologne

BOS - CGN

BOSCGN

Boston Logan Intl

vie. 8/15

5:50 am-3:50 pm

2 stops28h 00m

Cologne Köln/Bonn

vie. 8/22

4:30 pm-9:30 am

2 stops23h 00m

$684

BostonCologne

BOS - CGN

BOSCGN

Boston Logan Intl

vie. 8/15

3:16 pm-3:50 pm

2 stops18h 34m

Cologne Köln/Bonn

vie. 8/22

12:55 pm-5:40 pm

1 stop10h 45m

$804

BostonCologne

BOS - CGN

BOSCGN

Boston Logan Intl

vie. 7/25

7:20 pm-9:15 am

2 stops31h 55m

Cologne Köln/Bonn

vie. 8/8

2:20 pm-10:19 am

2 stops25h 59m

$844

BostonCologne

BOS - CGN

BOSCGN

Boston Logan Intl

mar. 9/30

9:35 pm-1:50 pm

1 stop34h 15m

Cologne Köln/Bonn

jue. 10/2

7:10 pm-7:40 pm

1 stop30h 30m

$922

BostonCologne

BOS - CGN

BOSCGN

Boston Logan Intl

mié. 10/1

8:50 pm-10:20 pm

2 stops19h 30m

$275

BostonCologne

BOS - CGN

BOSCGN

Boston Logan Intl

mié. 7/23

5:05 pm-9:10 am

1 stop10h 05m

$553

BostonCologne

BOS - CGN

BOSCGN

Boston Logan Intl

mié. 10/1

8:05 pm-3:50 pm

1 stop13h 45m

$1,367

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/2

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, October is the cheapest month in which you can book a flight from Boston to Cologne (average of $649). Flying from Boston to Cologne in June is currently the most expensive (average of $1,257). 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 a feel of what it's like to fly with SWISS, United Airlines, and Turkish Airlines 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.

SWISS

7.5

Good

1,654 reviews

Reviews

1 / 20

6.0

Good

Yvette,Nov 2024

ZRH - ATH

The website is difficult to navigate. You pay for everything. The carry on baggage policy is complicated. The food choices were poor and the seat was uncomfortable.

SWISS

7.5

Good

1,654 reviews

SWISS

7.5

Good

1,654 reviews

Reviews

1 / 20

6.0

Good

Yvette,Nov 2024

ZRH - ATH

The website is difficult to navigate. You pay for everything. The carry on baggage policy is complicated. The food choices were poor and the seat was uncomfortable.

United Airlines

7.4

Good

8,861 reviews

SWISS

7.5

Good

1,654 reviews

Reviews

1 / 20

6.0

Good

Yvette,Nov 2024

ZRH - ATH

The website is difficult to navigate. You pay for everything. The carry on baggage policy is complicated. The food choices were poor and the seat was uncomfortable.

Turkish Airlines

7.3

Good

3,895 reviews

SWISS

7.5

Good

1,654 reviews

Reviews

1 / 20

6.0

Good

Yvette,Nov 2024

ZRH - ATH

The website is difficult to navigate. You pay for everything. The carry on baggage policy is complicated. The food choices were poor and the seat was uncomfortable.

American Airlines

7.2

Good

10,000 reviews

SWISS

7.5

Good

1,654 reviews

Reviews

1 / 20

6.0

Good

Yvette,Nov 2024

ZRH - ATH

The website is difficult to navigate. You pay for everything. The carry on baggage policy is complicated. The food choices were poor and the seat was uncomfortable.

Air Canada

7.1

Good

9,681 reviews

SWISS

7.5

Good

1,654 reviews

Reviews

1 / 20

6.0

Good

Yvette,Nov 2024

ZRH - ATH

The website is difficult to navigate. You pay for everything. The carry on baggage policy is complicated. The food choices were poor and the seat was uncomfortable.

Related info for your journey

What are the cheapest airlines flying from Boston to Cologne round-trip?
According to our current data, Lufthansa ($510), British Airways ($556), and Air Canada ($565) offers the cheapest pricing from Boston to Cologne. You may be able to fly from Boston to Cologne for 41% 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, October is the cheapest month in which you can book a flight from Boston to Cologne (average of $649). Flying from Boston to Cologne in June is currently the most expensive (average of $1,257). 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

Top 3 airlines flying from Boston to Cologne

Airline	Cheapest	Average	Flexibility	On-time
Lufthansa	Cheapest$579	Average$731	FlexibilityNo cancel fee	On-time76%
British Airways	Cheapest$594	Average$729	FlexibilityNo cancel fee	On-time70%
Turkish Airlines	Cheapest$620	Average$746	FlexibilityNo cancel fee	On-time77%

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.

$275+ 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 10/1. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Boston to Cologne with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Boston to Cologne

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Boston to Cologne

Cheapest flights from Boston to CologneExplore 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 julio 3, 2025.

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 julio 3, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Boston to Cologne that are best for you.

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.

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?

Reviews of airlines servicing Cologne

Get a feel of what it's like to fly with SWISS, United Airlines, and Turkish Airlines 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.

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.

What are the cheapest airlines flying from Boston to Cologne round-trip?

Can I find deals for flights from Boston to Cologne that include hotel bookings?

How can I find direct flights from Boston to Cologne?

Can I find deals for business class flights from Boston to Cologne?

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

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.

Alternative routes for Boston to Cologne

See prices for flight routes from nearby airports that may be better suited for you.

Top 3 airlines flying from Boston to Cologne

100% Free

Book with Flexibility

Travel Smart

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 julio 3, 2025.