BOS - CGN

$307 Find Cheap Flights from Boston to Cologne

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Boston to Cologne departing on 10/28. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Cologne

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Boston to Cologne, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Boston to Cologne, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$712
Typical prices: $686-$658
Multiple Airlines
Mon 8/3Wed 8/19
BOS - CGN • 2 stops
Cheapest one-way
$307
Multiple Airlines
Wed 10/28
BOS - CGN • 3 stops
Top airlines
Cheapest • from $728 (round-trip)
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Boston and Cologne. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $790 (round-trip)
Shortest trip • 9h 35m (one-way)
Insights
Insights
Insights
Insights
When to travel
Cheapest • 24% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Cologne!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Boston to Cologne (BOS-CGN)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Boston to Cologne that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Boston to Cologne

Mon, Aug 3 - Wed, Aug 19
Multiple Airlines Logo
11:00 pm - 10:40 pm
BOS
-
CGN
17h 40m
2 stops
Multiple Airlines Logo
10:50 pm - 9:27 pm
CGN
-
BOS
28h 37m
3 stops
$712Multiple Airlines
Mon, Nov 30 - Fri, Dec 11
Lufthansa Logo
8:40 pm - 12:50 pm
BOS
-
CGN
10h 10m
1 stop
Lufthansa Logo
1:20 pm - 6:35 pm
CGN
-
BOS
11h 15m
1 stop
$728Lufthansa
Mon, Nov 30 - Fri, Dec 11
Lufthansa Logo
8:40 pm - 5:15 pm
BOS
-
CGN
14h 35m
1 stop
Lufthansa Logo
1:20 pm - 11:54 pm
CGN
-
BOS
16h 34m
2 stops
$744Lufthansa
Mon, Aug 3 - Wed, Aug 19
Multiple Airlines Logo
8:50 pm - 10:40 pm
BOS
-
CGN
19h 50m
2 stops
Multiple Airlines Logo
10:50 pm - 5:42 pm
CGN
-
BOS
24h 52m
2 stops
$749Multiple Airlines
Mon, Aug 3 - Wed, Aug 19
Multiple Airlines Logo
3:35 pm - 12:25 pm
BOS
-
CGN
14h 50m
2 stops
Multiple Airlines Logo
6:05 pm - 5:40 pm
CGN
-
BOS
29h 35m
1 stop
$761Multiple Airlines
Mon, Aug 3 - Wed, Aug 19
Lufthansa Logo
8:05 pm - 12:25 pm
BOS
-
CGN
10h 20m
1 stop
Lufthansa Logo
8:10 pm - 5:40 pm
CGN
-
BOS
27h 30m
1 stop
$774Lufthansa
Mon, Aug 3 - Wed, Aug 19
Lufthansa Logo
8:05 pm - 7:30 pm
BOS
-
CGN
17h 25m
1 stop
Lufthansa Logo
6:05 pm - 5:40 pm
CGN
-
BOS
29h 35m
1 stop
$783Lufthansa
Mon, Aug 3 - Wed, Aug 19
Multiple Airlines Logo
3:35 pm - 5:20 pm
BOS
-
CGN
19h 45m
2 stops
Multiple Airlines Logo
8:10 pm - 5:40 pm
CGN
-
BOS
27h 30m
1 stop
$786Multiple Airlines
Mon, Nov 30 - Fri, Dec 11
Lufthansa Logo
4:05 pm - 12:50 pm
BOS
-
CGN
14h 45m
2 stops
Lufthansa Logo
1:20 pm - 11:54 pm
CGN
-
BOS
16h 34m
2 stops
$798Lufthansa
Mon, Nov 30 - Fri, Dec 11
Multiple Airlines Logo
7:50 pm - 12:40 am
BOS
-
CGN
22h 50m
3 stops
Multiple Airlines Logo
6:00 am - 2:40 pm
CGN
-
BOS
38h 40m
3 stops
$811Multiple Airlines
Booking Insights

KAYAK's insights & trends for Boston to Cologne flights

Get data-powered insights and trends into flights from Boston to Cologne to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Boston to Cologne?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Boston to Cologne departing in August.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Boston to Cologne, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Boston to Cologne is March, where tickets cost $593 (return) on average. On the other hand, the most expensive months are June and July, where the average cost of round-trip tickets is $1,150 and $1,007 respectively.

Good to know

Low seasonAugust
Cheapest flight$307
Best time to beat the crowds with an average 15% drop in price.
Flight from Boston to Cologne

When to book flights from Boston to Cologne

Are your dates flexible? Find out the best times to travel from Boston to Cologne based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Boston to Cologne

  • What is the cheapest flight from Boston to Cologne?

    In the last 5 days, the lowest price for a flight from Boston to Cologne was $307 for a one-way ticket and $712 for a round-trip.

  • Do I need a passport to fly between Boston and Cologne?

    Yes, you'll most likely have to show a valid passport before boarding the plane in Boston and on arrival in Cologne.

  • Which airports will I be using when flying from Boston to Cologne?

    Boston airport is called Boston Logan Intl and the only airport in Cologne is Cologne Köln/Bonn.

  • Which aircraft models fly most regularly from Boston to Cologne?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Boston to Cologne?

    oneworld, and Star Alliance are the airline alliances operating flights between Boston and Cologne, with oneworld being the most commonly used for this route.

  • Which is the best airline for flights from Boston to Cologne, United Airlines or Lufthansa?

    The two airlines most popular with KAYAK users for flights from Boston to Cologne are United Airlines and Lufthansa. With an average price for the route of $1,146 and an overall rating of 7.4, United Airlines is the most popular choice. Lufthansa is also a great choice for the route, with an average price of $714 and an overall rating of 6.8.

  • How does KAYAK find such low prices on flights from Boston to Cologne?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Boston to Cologne.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Boston to Cologne?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Cologne from Boston is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Boston to Cologne?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Cologne with an airline and back to Boston with another airline. Booking your flights between Boston and CGN can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Boston to Cologne?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Cologne from Boston up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 3 airlines serving from Boston to Cologne

 
See real verified KAYAK customer reviews for airlines flying from Boston to Cologne. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Boston to Cologne? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 9804 reviews
7.7Boarding
6.6Food
7.3Comfort
7.1Entertainment
8.1Crew
Airline reviews

The flight was delayed, they didn’t even have water for the toilets or for drinks

2.0 MediocreKarla, Jun 2026
BOS - IAH
Read more United Airlines reviews

The flight was delayed, they didn’t even have water for the toilets or for drinks

Check in was chaotic with only one counter for business class and first class. The luggage conveyor belt at JFK airport was broken so the flight departure was delayed which made the flight stressful as I had a tight connection. Although the captain said they could make up the delay, they didn’t do so.

Our flight was canceled same day and we were never informed. Had to pay more and worse seating on another airline.

Excellent! I got to Munich and was transferred to my Lufthansa flight quickly, in 15 to 20 minutes, so I did not miss my flight. However, I had checked my overhead bag at the boarding gate in Tampa. That got to Tunis the next day. That is to be expected.

Friendliest Flight Attendant I’ve seen since I flew on Southwest Airlines. The whole trip was outstanding…and arrived Early!

I didn’t have a seat assignment and my seat was very dirty on the flight from Frankfurt to Budapest.

Food was surprisingly delicious. Space in the seat is horrible when the seating front is reclined. Movie offerings were terrible. Crew was friendly and helpful.

Due to cancellation of connecting flight (Lufthansa) I didn’t fly with United

Vegetarian selection could be better. Bread was too hard to chew.

Crew was friendly and competent. Food, wine, and entertainment were excellent except the raw tuna on the flight to Split. Recommend against serving that - at least as the only option. Many medical conditions do not allow people to eat raw fish.

Put me on standby; flight was late; missed my connecting flight; disaster

Flight attendants were fine, seats a bit hard but I use a cushion for extra support. The only issue was it was a bit too cool and I needed to ask for and received and extra blanket. I survived!!!

Very few things and/or people are excellent. It was very good.

Extremely uncomfortable seats. Experience was like a Frontier Airlines flight. Would not fly it again.

Very, very tight legroom. They must’ve jammed in an additional few rows of seat seating. Denver to Munich was the least legroom I’ve ever had on any flight, let alone a multi hour international journey. I will not take that flight again.

Good food, overall very comfy. The flight was full so obviously not optimal, but it is what it is.

Parents with permanently crying baby on board. Neither parents nor crew did anything to calm the baby. The food was extremely disappointing. Seafood stew was very, very small! Not even appetizer size! Seat had a gap in the back. Had to use a pillow to fill it.

Food choices limited & not enticing Seats quite uncomfortable & difficult to control

Definitely get premium economy on a flight this long if you can. Your legs and while body will thank you.

I upgraded to the business class cabin. It was the poorest business class I have ever experienced. No access to any business lounge in Tampa airport. Seats are not comfortable. I had a window seat and had to step/crawl over the next seat. Food was mediocre and service below average for business class. Bathroom location was ridiculous. No place to wait. I cannot believe I paid this kind of money and will never fly Lufthansa Discover again. They really should reimburse me somehow.

It's hard to tell where to plug in electronics, and the port on my seat didn't work. Their entertainment system was down. Vegetarian food options were tasty. Friendly, helpful flight attendants.

Boarding process was chaotic. Confusion over Boarding gates: gate 55 or gate 56 ???. Unnecessary standing in long lines to board. Better to call out Boarding groups one at a time and everyone else to sit. Airline only has 2 Boarding groups 1-3 and 4-9. That causes over crowding and chaos

Lady next to me was coughing profusely the entire flight, other lady moved seats because of it, 8 hours of that during an overnight flight is a bit much.

The flight was ok. The seats are so small. The free wifi for members was not an option on this flight. The one flight attendant, older woman with straight white/grey hair, was very rude. The gentleman next to me asked about the wifi since he was a member as well. He stated, accurately, that the option to enter the idea number was not available. Her response was, "I don't know what to tell you" and walked away from him. The rest of the staff was wonderful. I asked another flight attendant about the wifi, she said the free wifi was not enabled on that flight (true or not- at least she was friendly). It was also pretty dirty. When I opened the tray table it had mushed crumbs and there was a dirty used pair of ear buds in my seat pocket. Lastly the air vent above my head was working but stuck so I was unable to move it to face me when it got warm. I fly American often but this really was not a great flight.

My luggage was lost at the airport but American Airlines contacted me and got it to me the next day.

24 hour delays aren’t even heard in 3rd world countries with archaic transportation systems. I’m never flying American Airlines again.

3.5 hr delay leaving Pittsburgh, notifications for which were incomplete and untimely. Connecting flight was automatically switched to one requiring more than a 30 hour layover! After waiting in a long queue, customer service reduced layover to 11 hours and also set up an earlier standby. The standby had empty seats, but the gate agent couldn't change our tickets! On top of all that my luggage was lost and has yet to even be located, much less returned 5 (FIVE!) days later. Too bad there's no rating below poor.

Canceled flight late London to Florence. Help at airport very poor. Treated poorly. Had to sleep in the airport. Lost bags- still do not have them. Horrible. I should be reimbursed!

The seats are extra cramped if you are taller than 5’8! Spring for the extra legroom seats for sure if you have a long flight!

Very disappointed with British Airways. It has been over 24 hours and I still have not received my checked baggage or any proper update. Customer support has been unresponsive, making the situation even more frustrating. Poor baggage handling and lack of communication seriously impacted my travel experience.

Everything you need to know for your flight from Boston to Cologne

Information on your arrival and departure airports