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Cologne

$455+ Cheap flights from Boston (BOS) to Cologne (CGN)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/18. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — CGN
Jan 17 — Jan 241
Sat 1/17
Sat 1/24
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 December 18, 2025.

This Travelocity deal was found by Cheapflights users on 12/16. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/276:55 pmBOS - CGN
2 stops35h 40mAir Canada
Tue 1/66:55 pmCGN - BOS
2 stops28h 55mAir Canada
Deal found 12/16$805
This Expedia deal was found by Cheapflights users on 12/16. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/2810:45 amBOS - CGN
2 stops19h 50mAir Canada
Tue 1/66:55 pmCGN - BOS
2 stops28h 55mAir Canada
Deal found 12/16$810
This Expedia deal was found by Cheapflights users on 12/16. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/2810:10 pmBOS - CGN
1 stop29h 25mMultiple Airlines
Tue 1/66:55 pmCGN - BOS
2 stops28h 55mMultiple Airlines
Deal found 12/16$985
This Orbitz deal was found by Cheapflights users on 12/16. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/295:30 amBOS - CGN
2 stops25h 20mAir Canada
Tue 1/66:55 pmCGN - BOS
2 stops28h 55mAir Canada
Deal found 12/16$986
This Expedia deal was found by Cheapflights users on 12/16. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/296:40 pmBOS - CGN
2 stops45h 45mMultiple Airlines
Tue 1/67:40 pmCGN - BOS
2 stops47h 45mMultiple Airlines
Deal found 12/16$991
This United Airlines deal was found by Cheapflights users on 12/15. 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.
Tue 12/305:20 amBOS - CGN
2 stops22h 15mUnited Airlines
Sun 1/41:40 pmCGN - BOS
2 stops34h 10mUnited Airlines
Deal found 12/15$1,189
This Mytrip deal was found by Cheapflights users on 12/16. 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.
Sat 12/274:35 pmBOS - CGN
2 stops18h 35mMultiple Airlines
Tue 1/65:55 pmCGN - BOS
3 stops29h 55mMultiple Airlines
Deal found 12/16$1,198
This oojo deal was found by Cheapflights users on 12/15. 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.
Tue 12/307:15 pmBOS - CGN
1 stop15h 15mBritish Airways
Sun 1/44:35 pmCGN - BOS
1 stop29h 25mBritish Airways
Deal found 12/15$1,223
This Booking.com deal was found by Cheapflights users on 12/16. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/256:00 amBOS - CGN
2 stops27h 40mBritish Airways
Tue 1/65:05 pmCGN - BOS
2 stops55h 57mBritish Airways
Deal found 12/16$1,232

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 December 18, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$455
(Mytrip)

Popular in

December

Cheapest in

March

Average price

$1,284
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
Highest demand for flights based on searches. 15% potential increase in price ($136 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($49 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
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 December 18, 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

Wed 3/18

6:40 pm-12:50 pm

2 stops13h 10m

Cologne Köln/Bonn

Thu 4/2

6:20 am-3:30 pm

1 stop15h 10m

$455

BostonCologne

BOS - CGN

BOSCGN

Boston Logan Intl

Wed 1/7

7:30 am-4:10 pm

1 stop26h 40m

Cologne Köln/Bonn

Thu 1/15

5:05 pm-2:20 pm

1 stop27h 15m

$526

BostonCologne

BOS - CGN

BOSCGN

Boston Logan Intl

Tue 4/21

5:05 pm-9:10 am

1 stop10h 05m

Cologne Köln/Bonn

Tue 4/28

1:00 pm-5:40 pm

1 stop10h 40m

$538

BostonCologne

BOS - CGN

BOSCGN

Boston Logan Intl

Thu 1/29

9:35 pm-3:40 pm

1 stop12h 05m

Cologne Köln/Bonn

Mon 2/2

5:15 pm-2:20 pm

1 stop27h 05m

$549

BostonCologne

BOS - CGN

BOSCGN

Boston Logan Intl

Thu 1/1

4:20 pm-12:35 pm

2 stops14h 15m

Cologne Köln/Bonn

Wed 1/14

1:20 pm-6:35 pm

1 stop11h 15m

$574

BostonCologne

BOS - CGN

BOSCGN

Boston Logan Intl

Sat 1/31

8:40 pm-12:30 pm

1 stop9h 50m

Cologne Köln/Bonn

Sat 2/7

1:15 pm-6:35 pm

1 stop11h 20m

$577

BostonCologne

BOS - CGN

BOSCGN

Boston Logan Intl

Sat 1/31

8:40 pm-12:30 pm

1 stop9h 50m

Cologne Köln/Bonn

Sat 2/7

9:10 am-6:35 pm

1 stop15h 25m

$583

BostonCologne

BOS - CGN

BOSCGN

Boston Logan Intl

Fri 3/6

7:30 am-4:20 pm

1 stop26h 50m

Cologne Köln/Bonn

Sat 3/14

5:10 pm-3:20 pm

1 stop27h 10m

$594

BostonCologne

BOS - CGN

BOSCGN

Boston Logan Intl

Thu 12/25

3:55 pm-10:15 am

2 stops12h 20m

$1,111

BostonCologne

BOS - CGN

BOSCGN

Boston Logan Intl

Sat 12/27

3:58 pm-9:45 am

2 stops11h 47m

$1,111

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/16

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 December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice 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 eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Boston-Cologne flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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 $238). Flying from Boston to Cologne in June is currently the most expensive (average of $591). 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 December 18, 2025.
Get a feel of what it's like to fly with United Airlines, Lufthansa, and British 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
9,092 reviews

Entertainment

7.1

Food

6.6

Crew

8.1

Overall

7.4

Comfort

7.3

Boarding

7.7

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
9,092 reviews
United Airlines
7.4
Good
9,092 reviews

Entertainment

7.1

Food

6.6

Crew

8.1

Overall

7.4

Comfort

7.3

Boarding

7.7

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
7,634 reviews
United Airlines
7.4
Good
9,092 reviews

Entertainment

7.1

Food

6.6

Crew

8.1

Overall

7.4

Comfort

7.3

Boarding

7.7

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
7,583 reviews
United Airlines
7.4
Good
9,092 reviews

Entertainment

7.1

Food

6.6

Crew

8.1

Overall

7.4

Comfort

7.3

Boarding

7.7

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 British Airways fly from Boston to Cologne in about 26h 40m. 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 ($547), British Airways ($553), and United Airlines ($682) offers the cheapest pricing from Boston to Cologne. You may be able to fly from Boston to Cologne for 27% 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 $238). Flying from Boston to Cologne in June is currently the most expensive (average of $591). 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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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 December 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest$547Average$726FlexibilityNo cancel feeOn-time76%
British AirwaysCheapest$553Average$683FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$682Average$1,146FlexibilityNo cancel feeOn-time69%

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