A cathedral with two tall spires, a river with boats, and a cityscape with buildings and trees.

$318 Cheap Flights from Boston (BOS) to Cologne (CGN)

View $318 flight on Wed, Dec 9, 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 $318 for one-way flights and $733 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Lufthansa
Wed, Dec 2 - Tue, Dec 8
BOS
Boston
CGN
Cologne
$733 Roundtrip, found 6 days ago
$733
Roundtrip
found 6 days ago
Select Lufthansa flight, departing Wed, Dec 2 from Boston to Cologne, returning Tue, Dec 8, priced at $733 found 6 days ago
Lufthansa
Wed, Dec 2 - Tue, Dec 8
BOS
Boston
CGN
Cologne
$735 Roundtrip, found 6 days ago
$735
Roundtrip
found 6 days ago
Select Lufthansa flight, departing Wed, Dec 2 from Boston to Cologne, returning Tue, Dec 8, priced at $735 found 6 days ago
Air Canada
Wed, Dec 2 - Tue, Dec 8
BOS
Boston
CGN
Cologne
$738 Roundtrip, found 6 days ago
$738
Roundtrip
found 6 days ago
Select Air Canada flight, departing Wed, Dec 2 from Boston to Cologne, returning Tue, Dec 8, priced at $738 found 6 days ago
United
Wed, Dec 2 - Mon, Dec 7
BOS
Boston
CGN
Cologne
$742 Roundtrip, found 6 days ago
$742
Roundtrip
found 6 days ago
Select United flight, departing Wed, Dec 2 from Boston to Cologne, returning Mon, Dec 7, priced at $742 found 6 days ago
Austrian Airlines
Wed, Dec 2 - Tue, Dec 8
BOS
Boston
CGN
Cologne
$746 Roundtrip, found 6 days ago
$746
Roundtrip
found 6 days ago
Select Austrian Airlines flight, departing Wed, Dec 2 from Boston to Cologne, returning Tue, Dec 8, priced at $746 found 6 days ago
Lufthansa
Wed, Dec 2 - Mon, Dec 7
BOS
Boston
CGN
Cologne
$748 Roundtrip, found 6 days ago
$748
Roundtrip
found 6 days ago
Select Lufthansa flight, departing Wed, Dec 2 from Boston to Cologne, returning Mon, Dec 7, priced at $748 found 6 days ago
Lufthansa
Tue, Nov 24 - Thu, Dec 3
BOS
Boston
CGN
Cologne
$749 Roundtrip, found 17 hours ago
$749
Roundtrip
found 17 hours ago
Select Lufthansa flight, departing Tue, Nov 24 from Boston to Cologne, returning Thu, Dec 3, priced at $749 found 17 hours ago
Lufthansa
Tue, Nov 24 - Thu, Dec 3
BOS
Boston
CGN
Cologne
$752 Roundtrip, found 17 hours ago
$752
Roundtrip
found 17 hours ago
Select Lufthansa flight, departing Tue, Nov 24 from Boston to Cologne, returning Thu, Dec 3, priced at $752 found 17 hours ago
Austrian Airlines
Tue, Nov 24 - Thu, Dec 3
BOS
Boston
CGN
Cologne
$753 Roundtrip, found 17 hours ago
$753
Roundtrip
found 17 hours ago
Select Austrian Airlines flight, departing Tue, Nov 24 from Boston to Cologne, returning Thu, Dec 3, priced at $753 found 17 hours ago
Turkish Airlines
Tue, Nov 24 - Thu, Dec 3
BOS
Boston
CGN
Cologne
$827 Roundtrip, found 17 hours ago
$827
Roundtrip
found 17 hours ago
Select Turkish Airlines flight, departing Tue, Nov 24 from Boston to Cologne, returning Thu, Dec 3, priced at $827 found 17 hours ago

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

March is typically the cheapest month to fly

From $467 - $728 per traveler.

What you need to know for your flight from Logan Intl. to Cologne - Bonn

Boston (BOS) to Cologne (CGN) at a glance

Embark on an exciting journey with various airlines offering flights from Boston (BOS) to Cologne (CGN) along this international long-haul route. Explore your options among full-service carriers to find the itinerary that aligns with your budget, schedule, and travel plans as you discover the iconic sights and neighborhoods of Cologne. Get essential information for flights from Logan International Airport (BOS) to Cologne-Bonn Airport (CGN).

  • Fastest flight duration: around 8h 15m in-flight, plus roughly 1h 45m layover with one stop
  • Route distance: roughly 3,600 miles (5,790 km)
  • Flights per week: around 8 departures on average
  • Typical fares (one-way): economy tickets often range from $265–$820, depending on seasonality and how far ahead you book

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

According to recent traveler bookings, the top airlines flying from Boston to Cologne are favored for their one-stop service, often with layovers at Franz Josef Strauss International Airport (MUC) for about 1 hour and 45 minutes or Heathrow Airport (LHR) for approximately 2 hours and 45 minutes. This allows you to explore various combinations of price, total travel time, and cabin class to create the ideal itinerary for your journey.

  • Lufthansa: This full-service airline provides one-stop flights, with one-way ticket prices generally between $265 and $555. It represents about 34% of departures on this route, featuring an in-flight duration of 8 hours and 15 minutes, and a total travel time of approximately 10 hours and 15 minutes, including layover time.
  • United: As a full-service carrier, United also offers one-stop options, with one-way fares usually ranging from $350 to $785. This airline accounts for roughly 29% of departures for this route, maintaining an in-flight time of 8 hours and 15 minutes and a total journey time of around 10 hours and 15 minutes, including layovers.
  • British Airways: Another full-service option, British Airways provides one-stop service with one-way fares that typically range from $265 to $820. Catering to about 24% of this route's departures, the in-flight duration is 8 hours and 15 minutes, with a total travel time close to 10 hours and 15 minutes, factoring in layover periods.
  • American Airlines: Offering one-stop service as a full-service airline, American Airlines features one-way fares that commonly span from $320 to $3,180. This airline represents about 8% of departures on the route, with an in-flight time of 8 hours and 15 minutes and a total journey time nearing 10 hours and 15 minutes, including layovers.

Alternative route from Boston (BOS) to Cologne (CGN)

  • Boston to Duesseldorf (BOS-DUS): Düsseldorf International Airport (DUS) lies approximately 31 miles from Cologne - Bonn Airport (CGN). On this route, one-way economy ticket prices generally fall between $250 and $725, influenced by the time of year and how early you book. Travelers can choose from both one-stop and multi-stop flights, with popular layover locations including Heathrow Airport (LHR) and Frankfurt International Airport (FRA). Leading airlines operating this route include British Airways and Lufthansa. Additionally, business class service is offered on this journey.

How to find the best prices for flights from Boston (BOS) to Cologne (CGN)

Getting some of the best deals on flights from Boston to Cologne is all about timing and flexibility. Here are some key tips to help you save:

  1. Best times to book and fly: cheaper fares are generally available when booking 2-8 weeks in advance, which is when most travelers make their reservations. Departures in the evening (6 PM to 12 AM) often provide lower prices and are popular among passengers. Additionally, Saturday tends to offer cheaper flights, while Wednesday remains the most favored travel day.
  2. Set up price alerts: stay updated on price changes by using Expedia's Price Tracker. Receive alerts when fares drop for your selected route.
  3. Bundle and save: bundle your flight and hotel to save on Expedia, or unlock a hotel deal after booking your flight.*
  4. Compare flight options: use Expedia's search tool to compare airlines, routes, direct vs. non-direct flights, and flight times. You can also sort by price to find the most affordable options.
  5. Stay flexible with dates: being open to different travel days can sometimes help you find better prices on flights and hotels.
  6. Think about luggage: nowadays, it's important to check the airline's baggage policies to find the best value. That may be paying for an additional carry-on bag or booking a ticket with checked luggage included. Either way, double-check your allowance before confirming your booking to avoid excess baggage fees at the airport.

*Members only. Savings vary and are not available on all bundles. Select hotels.

Arriving at Cologne - Bonn Airport from Logan International Airport

Cologne welcomes travelers from Boston with a range of transport options based on price, convenience, and proximity. Here's how to reach Cologne efficiently:

  • Hotel transfer: Transfers offer a convenient way to reach your hotel in Cologne, with private rides that can be arranged in advance.
  • Car rental: Renting a car from Cologne - Bonn Airport is a great option if you plan to explore and sightsee beyond the city. Browse cheap car rentals at Cologne - Bonn Airport on Expedia.
  • Taxi/ride-hailing: Taxis and ride-hailing services may be available from designated pickup areas outside the terminal, check locally on arrival.
  • Public transportation: From Cologne - Bonn Airport, travelers will find several key transport options nearby. Cologne/Bonn Airport Station, a metro station, is located about 0.5 miles from the airport, while Bonn Konrad-Adenauer Bus Stop, a bus station, is around 1.8 miles away by car. Additionally, Cologne-Bonn Seaport, a seaport, is situated approximately 1.6 miles from the airport and is best reached by car.

Frequently asked questions

How much does a flight from Boston, MA (BOS-Logan Intl.) to Cologne (CGN-Cologne - Bonn) cost?
You can find cheap one-way flights from $318 and cheap return flights from $733 Boston, MA (BOS-Logan Intl.) to Cologne (CGN-Cologne - Bonn) with Expedia. One-way flights typically cost between $386 and $5840, and return flights often range between $692 and $6198. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when Boston, MA (BOS-Logan Intl.) to Cologne (CGN-Cologne - Bonn) ticket fares go up or down.*Typical price ranges based on flights available on Expedia in the last year. Prices include multi-airline options.
What is the cheapest month to fly from Boston, MA (BOS-Logan Intl.) to Cologne (CGN-Cologne - Bonn)?
The cheapest month to fly from BOS to CGN is December when demand is low. Traveling in off-peak or shoulder months is usually a good way to secure cheap tickets, just remember to avoid flying during holidays if you're able to. Use the calendar view in your search to see which months have low fares on this route.
Which airlines fly direct from Boston, MA (BOS-Logan Intl.) to Cologne (CGN-Cologne - Bonn)?
Enter BOS to CGN and your travel dates, then apply the 'Nonstop' filter to see only direct flights.
How do I find cheap flights from Boston, MA (BOS-Logan Intl.) to Cologne (CGN-Cologne - Bonn)?
To find a cheap flight from Boston, MA (BOS-Logan Intl.) to Cologne (CGN-Cologne - Bonn), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best time to fly from Boston, MA (BOS-Logan Intl.) to Cologne (CGN-Cologne - Bonn)?
The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.
What is the earliest flight from Boston, MA (BOS-Logan Intl.) to Cologne (CGN-Cologne - Bonn)?
The earliest flight from Logan International Airport (BOS) to Cologne (CGN) usually leaves at around 5:00 AM, operated by American Airlines and British Airways. This seasonal service is available in March, and an early departure can give you a head start on your adventures in Cologne. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What are the most popular departure times for flights from Boston, MA (BOS-Logan Intl.) to Cologne (CGN-Cologne - Bonn)?
The most popular departure times for flights from Boston (BOS) to Cologne (CGN) are in the late afternoon, from 3pm to 6pm. About 32% of passengers prefer this time window. Many major carriers, including Lufthansa and Air Canada, offer flights during this window. This timing works well because it allows you to maximize your time in Boston before your flight.
How long does it take to fly from Boston, MA (BOS-Logan Intl.) to Cologne (CGN-Cologne - Bonn)?
Flying from BOS to CGN with a connection usually takes about 15 hours 20 minutes, traveling roughly 3,578 miles. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Boston, MA (BOS-Logan Intl.) to Cologne (CGN-Cologne - Bonn)?
You can fly business class between BOS and CGN. Airlines that offer business class service on this route include:

  • Lufthansa
  • Air Canada
  • British Airways
  • United Airlines
  • Swiss International Air Lines
  • Turkish Airlines
  • TAP Portugal
  • Iberia
  • American Airlines
  • Aer Lingus

First class cabins are available on:

  • United Airlines
  • Swiss International Air Lines
  • Lufthansa

How do I earn miles on a Boston, MA (BOS-Logan Intl.) to Cologne (CGN-Cologne - Bonn) flight with Expedia?
It's easy to earn miles on a Boston, MA (BOS-Logan Intl.) to Cologne (CGN-Cologne - Bonn) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Cologne from Logan Intl. (BOS)?
If you're planning to travel to Cologne from Logan Intl. (BOS), you can fly into Cologne - Bonn (CGN) Some flights may connect through major hubs like Liberty Intl. (EWR), Pearson Intl. (YYZ), O'Hare Intl. (ORD) before reaching Cologne. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Boston, MA (BOS-Logan Intl.) to Cologne (CGN-Cologne - Bonn) at the last minute?
Typically, booking a last minute flight from Boston, MA (BOS-Logan Intl.) to Cologne (CGN-Cologne - Bonn) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Boston, MA (BOS-Logan Intl.) to Cologne (CGN-Cologne - Bonn) flight and hotel package?
Securing a Boston, MA (BOS-Logan Intl.) to Cologne (CGN-Cologne - Bonn) Cologne Vacation Packages is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Boston, MA (BOS-Logan Intl.) to Cologne (CGN-Cologne - Bonn)?
If you booked your Boston, MA (BOS-Logan Intl.) to Cologne (CGN-Cologne - Bonn) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Logan Intl.
Destination airport
Cologne - Bonn
Airlines serving
Air Canada, Austrian Airlines, Lufthansa, Swiss International Air Lines, Turkish Airlines, United
Roundtrip price
$733
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 December. 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 2026. You can also book with separate airlines for your outbound and return journeys, from $318 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

*Flight schedules are subject to change.

*Available to One Key members.

 

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