$361 Cheap Flights from Boston (BOS) to Cologne (CGN)

View $361 flight on Tue, Feb 3, 2026Opens in a new window

Popular airlines from Logan International Airport (BOS) to Cologne - Bonn Airport (CGN)

Cheap Flights from Boston to Cologne (BOS-CGN)

Prices were available within the past 7 days and start at $361 for one-way flights and $502 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

British Airways
Tue, Feb 10 - Fri, Feb 20
BOS
Boston
CGN
Cologne
$502 Roundtrip, found 8 hours ago
$502
Roundtrip
found 8 hours ago
Select British Airways flight, departing Tue, Feb 10 from Boston to Cologne, returning Fri, Feb 20, priced at $502 found 8 hours ago
British Airways
Tue, Feb 10 - Fri, Feb 20
BOS
Boston
CGN
Cologne
$507 Roundtrip, found 8 hours ago
$507
Roundtrip
found 8 hours ago
Select British Airways flight, departing Tue, Feb 10 from Boston to Cologne, returning Fri, Feb 20, priced at $507 found 8 hours ago
British Airways
Tue, Mar 3 - Tue, Apr 7
BOS
Boston
CGN
Cologne
$507 Roundtrip, found 2 days ago
$507
Roundtrip
found 2 days ago
Select British Airways flight, departing Tue, Mar 3 from Boston to Cologne, returning Tue, Apr 7, priced at $507 found 2 days ago
British Airways
Tue, Jan 6 - Tue, Jan 13
BOS
Boston
CGN
Cologne
$527 Roundtrip, found 12 hours ago
$527
Roundtrip
found 12 hours ago
Select British Airways flight, departing Tue, Jan 6 from Boston to Cologne, returning Tue, Jan 13, priced at $527 found 12 hours ago
British Airways
Wed, Jan 7 - Mon, Jan 12
BOS
Boston
CGN
Cologne
$530 Roundtrip, found 9 hours ago
$530
Roundtrip
found 9 hours ago
Select British Airways flight, departing Wed, Jan 7 from Boston to Cologne, returning Mon, Jan 12, priced at $530 found 9 hours ago
British Airways
Sun, Mar 22 - Mon, Mar 30
BOS
Boston
CGN
Cologne
$531 Roundtrip, found 6 days ago
$531
Roundtrip
found 6 days ago
Select British Airways flight, departing Sun, Mar 22 from Boston to Cologne, returning Mon, Mar 30, priced at $531 found 6 days ago
Air Canada
Wed, Feb 11 - Wed, Feb 18
BOS
Boston
CGN
Cologne
$599 Roundtrip, found 1 day ago
$599
Roundtrip
found 1 day ago
Select Air Canada flight, departing Wed, Feb 11 from Boston to Cologne, returning Wed, Feb 18, priced at $599 found 1 day ago
United
Tue, Dec 9 - Tue, Dec 16
BOS
Boston
CGN
Cologne
$607 Roundtrip, found 9 hours ago
$607
Roundtrip
found 9 hours ago
Select United flight, departing Tue, Dec 9 from Boston to Cologne, returning Tue, Dec 16, priced at $607 found 9 hours ago
Austrian Airlines
Tue, Dec 9 - Mon, Dec 15
BOS
Boston
CGN
Cologne
$609 Roundtrip, found 9 hours ago
$609
Roundtrip
found 9 hours ago
Select Austrian Airlines flight, departing Tue, Dec 9 from Boston to Cologne, returning Mon, Dec 15, priced at $609 found 9 hours ago
Turkish Airlines
Thu, Jan 22 - Sat, Jan 24
BOS
Boston
CGN
Cologne
$658 Roundtrip, found 3 days ago
$658
Roundtrip
found 3 days ago
Select Turkish Airlines flight, departing Thu, Jan 22 from Boston to Cologne, returning Sat, Jan 24, priced at $658 found 3 days ago

Find the cheapest month to fly from Boston (BOS) to Cologne (CGN)

November is typically the cheapest month to fly

From $480 - $1,288 per traveler.

Alternative airports near Cologne

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Cologne - Bonn CGN. Cheapest and Closest option available. Average driving time to city center is 14 minutes. Flights from $584
CGN
Cologne - Bonn
CheapestClosest
Average driving time to city center14 min
Flights from $584

Frequently asked questions

How much does a flight from Logan Intl. Airport (BOS) to Cologne - Bonn Airport (CGN) cost?
Snag a cheap one-way flight from $361 or cheap return flight from $502 from Logan Intl. Airport (BOS) to Cologne - Bonn Airport (CGN) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Logan Intl. Airport (BOS) to Cologne - Bonn Airport (CGN)?
The cheapest month to fly from BOS to CGN is February, when demand is low. Off-peak season is typically when airlines offer better prices between these airports.
What is the cheapest airline that flies from Logan Intl. Airport (BOS) to Cologne - Bonn Airport (CGN)?
Expedia's filter tool lets you easily compare different airlines, flight durations and fares all in one place. Select your preferences, then sort by "Price (lowest to highest)" to find the carrier with the cheapest BOS to CGN flight.
How many flights per day from Logan Intl. Airport (BOS) to Cologne - Bonn Airport (CGN)?
Nonstop flights from Logan Intl. Airport (BOS) to Cologne - Bonn Airport (CGN) aren't available daily, so you'll have to take a flight with a layover. Explore your options with Expedia's filters. Enter your dates and choose either "1 Stop" or "2+ Stops."
What day of the week has the most flights from BOS to CGN?
Friday is generally the busiest day for flights, while Tuesday is often the quietest.* Keep in mind that flight schedules can change depending on a number of factors, including the time of year and airline.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Logan Intl. Airport (BOS) to Cologne - Bonn Airport (CGN)?
To land at Cologne - Bonn Airport (CGN) on schedule, pick a flight that leaves Logan Intl. Airport (BOS) before 3 PM. The chance of cancellations is 22% higher, on average, for departures after this time.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Logan Intl. Airport (BOS) to Cologne - Bonn Airport (CGN) last-minute?
Booking your ticket from BOS to CGN just before your trip is typically more expensive. But if you're flexible with your travel dates and times, you could land a cheap last-minute fare.
Is it cheaper to book a BOS to CGN flight and hotel package?
Compared with arranging hotels and flights separately, booking a BOS to CGN flight and hotel package with Expedia could lead to significant savings. What's more, having everything in one place will take the stress out of travel planning. Simply pick your flights and select from our wide range of hotels, then tailor your trip with other add-ons like tours, activities and car rentals.
Can I cancel or change the date of my flight from Logan Intl. Airport (BOS) to Cologne - Bonn Airport (CGN)?
If you reserved your BOS to CGN flight in the last 24 hours, you may be able to cancel or modify it at no cost. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, go to our Customer Service portal for more information.

Travel information

Origin airport
Logan Intl.
Destination airport
Cologne - Bonn
Airlines serving
Air Canada, American Airlines, Austrian Airlines, British Airways, Lufthansa, Swiss International Air Lines, Turkish Airlines, United
Roundtrip price
$502
Distance
3577 mi

Book with confidence

Boston to Cologne Flights

The cheapest times to fly from Boston to Cologne

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Boston to Cologne are during the month of February. You can find some of the cheapest flights from Boston to Cologne with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Boston to Cologne

Sunday is one of the best days to book for cheap flights from Boston to Cologne: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Boston to Cologne

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Boston to Cologne in 2025. You can also book with separate airlines for your outbound and return journeys, from $361 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Boston to Cologne flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Boston to Cologne airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Boston to Cologne Flights

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*Available to One Key members.