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Cologne

$291+ 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 9/2. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — CGN
jun. 17 — jun. 241
mar. 6/17
mar. 6/24
1 adult, Economy
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Cheap 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 junio 12, 2025.

Round-trip from

$516
(Kiwi.com)

One-way from

$291
(Kiwi.com)

Popular in

December

Cheapest in

February

Average price

$757
From Boston Logan Intl to Cologne Köln/Bonn
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One-way flight from Boston Logan Intl to Cologne Köln/Bonn
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Highest demand for flights based on searches. 16% potential increase in price ($168 potential increase over avg. RT price).
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Cheapest flight prices on average. 9% potential price decrease ($72 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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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 junio 12, 2025.

This Kiwi.com deal was found by Cheapflights users on 6/11. 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.
lun. 9/18:50 pmBOS - CGN
2 stops13h 10mMultiple Airlines
dom. 9/74:50 pmCGN - BOS
1 stop34h 25mMultiple Airlines
Deal found 6/11$516
This British Airways deal was found by Cheapflights users on 6/11. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 9/29:55 pmBOS - CGN
1 stop17h 30mBritish Airways
mar. 9/93:30 pmCGN - BOS
1 stop13h 15mBritish Airways
Deal found 6/11$527
This American Airlines deal was found by Cheapflights users on 6/11. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 9/179:55 pmBOS - CGN
1 stop17h 05mAmerican Airlines
mar. 9/233:30 pmCGN - BOS
1 stop10h 40mAmerican Airlines
Deal found 6/11$550
This Air Canada deal was found by Cheapflights users on 6/11. 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.
lun. 9/16:40 pmBOS - CGN
2 stops34h 30mAir Canada
mar. 9/97:40 amCGN - BOS
2 stops12h 50mAir Canada
Deal found 6/11$618
This deal was found by Cheapflights users on 6/10. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 10/78:05 pmBOS - CGN
1 stop10h 10mLufthansa
mié. 10/2212:55 pmCGN - BOS
1 stop10h 45mLufthansa
Deal found 6/10$630
This Austrian Airlines deal was found by Cheapflights users on 6/11. 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 Austrian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 9/35:10 pmBOS - CGN
1 stop20h 30mAustrian Airlines
mié. 9/108:25 pmCGN - BOS
2 stops28h 30mAustrian Airlines
Deal found 6/11$646
This United Airlines deal was found by Cheapflights users on 6/11. 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.
mar. 9/25:05 pmBOS - CGN
2 stops13h 10mUnited Airlines
mié. 9/1012:55 pmCGN - BOS
1 stop10h 45mUnited Airlines
Deal found 6/11$650
This Turkish Airlines deal was found by Cheapflights users on 6/11. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 9/169:35 pmBOS - CGN
1 stop34h 15mTurkish Airlines
sáb. 9/207:10 pmCGN - BOS
1 stop30h 30mTurkish Airlines
Deal found 6/11$693

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 junio 12, 2025.
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

lun. 9/1

8:50 pm-4:00 pm

2 stops13h 10m

Cologne Köln/Bonn

dom. 9/7

4:50 pm-9:15 pm

1 stop34h 25m

$516

BostonCologne

BOS - CGN

BOSCGN

Boston Logan Intl

mar. 9/2

9:55 pm-9:25 pm

1 stop17h 30m

Cologne Köln/Bonn

mar. 9/9

3:30 pm-10:45 pm

1 stop13h 15m

$527

BostonCologne

BOS - CGN

BOSCGN

Boston Logan Intl

mié. 9/17

9:55 pm-9:00 pm

1 stop17h 05m

Cologne Köln/Bonn

mar. 9/23

3:30 pm-8:10 pm

1 stop10h 40m

$550

BostonCologne

BOS - CGN

BOSCGN

Boston Logan Intl

lun. 9/1

6:40 pm-11:10 am

2 stops34h 30m

Cologne Köln/Bonn

mar. 9/9

7:40 am-2:30 pm

2 stops12h 50m

$618

BostonCologne

BOS - CGN

BOSCGN

Boston Logan Intl

mar. 10/7

8:05 pm-12:15 pm

1 stop10h 10m

Cologne Köln/Bonn

mié. 10/22

12:55 pm-5:40 pm

1 stop10h 45m

$630

BostonCologne

BOS - CGN

BOSCGN

Boston Logan Intl

mié. 9/3

5:10 pm-7:40 pm

1 stop20h 30m

Cologne Köln/Bonn

mié. 9/10

8:25 pm-6:55 pm

2 stops28h 30m

$646

BostonCologne

BOS - CGN

BOSCGN

Boston Logan Intl

mar. 9/2

5:05 pm-12:15 pm

2 stops13h 10m

Cologne Köln/Bonn

mié. 9/10

12:55 pm-5:40 pm

1 stop10h 45m

$650

BostonCologne

BOS - CGN

BOSCGN

Boston Logan Intl

mar. 9/16

9:35 pm-1:50 pm

1 stop34h 15m

Cologne Köln/Bonn

sáb. 9/20

7:10 pm-7:40 pm

1 stop30h 30m

$693

BostonCologne

BOS - CGN

BOSCGN

Boston Logan Intl

mar. 9/2

8:50 pm-12:45 am

2 stops21h 55m

$291

BostonCologne

BOS - CGN

BOSCGN

Boston Logan Intl

jue. 9/18

6:00 am-11:10 am

2 stops47h 10m

$555

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/11

Showing 1-10 of 11 results
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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 $1,307). 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.

Rainfall in Cologne by month

Plan your trip to Cologne by taking into account the average rainfall totals by month.

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.

Temperature in Cologne by month

Plan your trip to Cologne by taking into account the average temperature totals by month.

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).

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 junio 12, 2025.
Peruse reviews from past customers who have flown with Austrian Airlines, SWISS and United Airlines from Boston to Cologne to help guide your decision. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Austrian Airlines
7.6
Good
802 reviews

Boarding

7.6

Comfort

7.3

Food

6.8

Overall

7.6

Entertainment

6.8

Crew

8.1

Reviews

1 / 20
8.0
Excellent

Grant,Jun 2025

VIE - FRA

A delay was caused by computer malfunctions after we left the gate. It was handled well
Austrian Airlines
7.6
Good
802 reviews
Austrian Airlines
7.6
Good
802 reviews

Boarding

7.6

Comfort

7.3

Food

6.8

Overall

7.6

Entertainment

6.8

Crew

8.1

Reviews

1 / 20
8.0
Excellent

Grant,Jun 2025

VIE - FRA

A delay was caused by computer malfunctions after we left the gate. It was handled well
SWISS
7.5
Good
1,623 reviews
Austrian Airlines
7.6
Good
802 reviews

Boarding

7.6

Comfort

7.3

Food

6.8

Overall

7.6

Entertainment

6.8

Crew

8.1

Reviews

1 / 20
8.0
Excellent

Grant,Jun 2025

VIE - FRA

A delay was caused by computer malfunctions after we left the gate. It was handled well
United Airlines
7.4
Good
8,790 reviews
Austrian Airlines
7.6
Good
802 reviews

Boarding

7.6

Comfort

7.3

Food

6.8

Overall

7.6

Entertainment

6.8

Crew

8.1

Reviews

1 / 20
8.0
Excellent

Grant,Jun 2025

VIE - FRA

A delay was caused by computer malfunctions after we left the gate. It was handled well
Turkish Airlines
7.3
Good
3,848 reviews
Austrian Airlines
7.6
Good
802 reviews

Boarding

7.6

Comfort

7.3

Food

6.8

Overall

7.6

Entertainment

6.8

Crew

8.1

Reviews

1 / 20
8.0
Excellent

Grant,Jun 2025

VIE - FRA

A delay was caused by computer malfunctions after we left the gate. It was handled well
Air Canada
7.1
Good
9,531 reviews
Austrian Airlines
7.6
Good
802 reviews

Boarding

7.6

Comfort

7.3

Food

6.8

Overall

7.6

Entertainment

6.8

Crew

8.1

Reviews

1 / 20
8.0
Excellent

Grant,Jun 2025

VIE - FRA

A delay was caused by computer malfunctions after we left the gate. It was handled well

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?

    According to our current data, British Airways ($527), Air Canada ($618), and United Airlines ($630) offers the cheapest pricing from Boston to Cologne. You may be able to fly from Boston to Cologne for 38% 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 $1,307). 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

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Alternative routes for Boston to Cologne

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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 junio 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest$579Average$737FlexibilityNo cancel feeOn-time76%
British AirwaysCheapest$616Average$729FlexibilityNo cancel feeOn-time70%

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