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Cheap flights from Boston to Cologne from $356

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Boston to Cologne departing on 5/26. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
8:05 pm - 5:20 pm
BOS
-
CGN
15h 15m
1 stop
Multiple Airlines Logo
8:40 pm - 1:50 pm
CGN
-
BOS
23h 10m
1 stop
$608Multiple Airlines
Tue, Apr 21 - Tue, Apr 28
Lufthansa Logo
8:05 pm - 7:30 pm
BOS
-
CGN
17h 25m
1 stop
Lufthansa Logo
6:05 pm - 11:59 pm
CGN
-
BOS
35h 54m
2 stops
$612Lufthansa
Tue, Apr 21 - Mon, Apr 27
Lufthansa Logo
8:05 pm - 5:20 pm
BOS
-
CGN
15h 15m
1 stop
Lufthansa Logo
1:05 pm - 5:40 pm
CGN
-
BOS
10h 35m
1 stop
$620Lufthansa
Tue, Apr 21 - Tue, Apr 28
Lufthansa Logo
8:05 pm - 7:30 pm
BOS
-
CGN
17h 25m
1 stop
Lufthansa Logo
8:10 pm - 5:40 pm
CGN
-
BOS
27h 30m
1 stop
$621Lufthansa
Tue, Apr 21 - Mon, Apr 27
Turkish Airlines Logo
9:50 pm - 6:10 pm
BOS
-
CGN
14h 20m
1 stop
Turkish Airlines Logo
7:10 pm - 7:55 pm
CGN
-
BOS
30h 45m
1 stop
$629Turkish Airlines
Mon, Apr 6 - Tue, Apr 14
Turkish Airlines Logo
9:50 pm - 6:10 pm
BOS
-
CGN
14h 20m
1 stop
Turkish Airlines Logo
10:25 am - 7:55 pm
CGN
-
BOS
15h 30m
1 stop
$632Turkish Airlines
Sun, Apr 5 - Tue, Apr 21
Air Canada Logo
3:35 pm - 12:25 pm
BOS
-
CGN
14h 50m
2 stops
Air Canada Logo
6:20 am - 5:57 pm
CGN
-
BOS
17h 37m
2 stops
$641Air Canada
Sun, Apr 5 - Tue, Apr 21
Austrian Airlines Logo
11:17 am - 7:55 pm
BOS
-
CGN
26h 38m
2 stops
Austrian Airlines Logo
8:40 pm - 7:06 pm
CGN
-
BOS
28h 26m
2 stops
$650Austrian Airlines
Wed, Apr 15 - Mon, Apr 20
United Airlines Logo
8:05 pm - 5:20 pm
BOS
-
CGN
15h 15m
1 stop
United Airlines Logo
1:05 pm - 5:40 pm
CGN
-
BOS
10h 35m
1 stop
$651United Airlines
Tue, Apr 21 - Tue, Apr 28
Lufthansa Logo
8:05 pm - 12:25 pm
BOS
-
CGN
10h 20m
1 stop
Lufthansa Logo
1:05 pm - 11:59 pm
CGN
-
BOS
16h 54m
2 stops
$656Lufthansa
Mon, Apr 6 - Tue, Apr 14

United Airlines flights from Boston to Cologne

Our best United Airlines deals on Boston to Cologne flight tickets
United Airlines
Apr 21
BOS8:05 pmBoston Logan Intl
15h 15m
1 stop
CGN5:20 pmCologne Köln/Bonn
Apr 28
CGN1:05 pmCologne Köln/Bonn
10h 35m
1 stop
BOS5:40 pmBoston Logan Intl
$651
United Airlines
Apr 21
BOS5:25 pmBoston Logan Intl
17h 55m
2 stops
CGN5:20 pmCologne Köln/Bonn
Apr 28
CGN1:05 pmCologne Köln/Bonn
14h 49m
2 stops
BOS9:54 pmBoston Logan Intl
$666
United Airlines
Apr 21
BOS7:30 pmBoston Logan Intl
34h 55m
2 stops
CGN12:25 pmCologne Köln/Bonn
Apr 27
CGN1:05 pmCologne Köln/Bonn
50h 59m
2 stops
BOS10:04 amBoston Logan Intl
$676

Lufthansa flights from Boston to Cologne

Our best Lufthansa deals on Boston to Cologne flight tickets
Lufthansa
Apr 21
BOS8:05 pmBoston Logan Intl
17h 25m
1 stop
CGN7:30 pmCologne Köln/Bonn
Apr 27
CGN6:05 pmCologne Köln/Bonn
35h 54m
2 stops
BOS11:59 pmBoston Logan Intl
$612
Lufthansa
Apr 21
BOS8:05 pmBoston Logan Intl
15h 15m
1 stop
CGN5:20 pmCologne Köln/Bonn
Apr 28
CGN1:05 pmCologne Köln/Bonn
10h 35m
1 stop
BOS5:40 pmBoston Logan Intl
$620
Lufthansa
Apr 21
BOS8:05 pmBoston Logan Intl
17h 25m
1 stop
CGN7:30 pmCologne Köln/Bonn
Apr 27
CGN8:10 pmCologne Köln/Bonn
27h 30m
1 stop
BOS5:40 pmBoston Logan Intl
$621

momondo 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, momondo users made 832,500 searches. Data last updated March 26, 2026.
Use the filters below to find and compare flights from Boston to Cologne that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BostonCologne

BOS - CGN

BOSCGN

Boston Logan Intl

Tue 4/21

8:05 pm-5:20 pm

1 stop15h 15m

Cologne Köln/Bonn

Tue 4/28

8:40 pm-1:50 pm

1 stop23h 10m

$608

BostonCologne

BOS - CGN

BOSCGN

Boston Logan Intl

Tue 4/21

8:05 pm-7:30 pm

1 stop17h 25m

Cologne Köln/Bonn

Mon 4/27

6:05 pm-11:59 pm

2 stops35h 54m

$612
Quickest round-trip

BostonCologne

BOS - CGN

BOSCGN

Boston Logan Intl

Tue 4/21

8:05 pm-5:20 pm

1 stop15h 15m

Cologne Köln/Bonn

Tue 4/28

1:05 pm-5:40 pm

1 stop10h 35m

$620

BostonCologne

BOS - CGN

BOSCGN

Boston Logan Intl

Tue 4/21

8:05 pm-7:30 pm

1 stop17h 25m

Cologne Köln/Bonn

Mon 4/27

8:10 pm-5:40 pm

1 stop27h 30m

$621

BostonCologne

BOS - CGN

BOSCGN

Boston Logan Intl

Mon 4/6

9:50 pm-6:10 pm

1 stop14h 20m

Cologne Köln/Bonn

Tue 4/14

7:10 pm-7:55 pm

1 stop30h 45m

$629

BostonCologne

BOS - CGN

BOSCGN

Boston Logan Intl

Sun 4/5

9:50 pm-6:10 pm

1 stop14h 20m

Cologne Köln/Bonn

Tue 4/21

10:25 am-7:55 pm

1 stop15h 30m

$632

BostonCologne

BOS - CGN

BOSCGN

Boston Logan Intl

Sun 4/5

3:35 pm-12:25 pm

2 stops14h 50m

Cologne Köln/Bonn

Tue 4/21

6:20 am-5:57 pm

2 stops17h 37m

$641

BostonCologne

BOS - CGN

BOSCGN

Boston Logan Intl

Wed 4/15

11:17 am-7:55 pm

2 stops26h 38m

Cologne Köln/Bonn

Mon 4/20

8:40 pm-7:06 pm

2 stops28h 26m

$650

BostonCologne

BOS - CGN

BOSCGN

Boston Logan Intl

Tue 4/21

8:05 pm-5:20 pm

1 stop15h 15m

Cologne Köln/Bonn

Tue 4/28

1:05 pm-5:40 pm

1 stop10h 35m

$651

BostonCologne

BOS - CGN

BOSCGN

Boston Logan Intl

Mon 4/6

8:05 pm-12:25 pm

1 stop10h 20m

Cologne Köln/Bonn

Tue 4/14

1:05 pm-11:59 pm

2 stops16h 54m

$656

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Cologne from

How to get the cheapest flight ticket from Boston to Cologne

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Boston and Cologne?

What is the cheapest month to fly to Cologne?

The cheapest month to fly to Cologne from Boston is in March. Flight prices, which tend to average around $593, are often lower during this time because this is during the off-season. If you are unable to visit Cologne during the month of March, then departing from Boston during the month April is also very affordable. Most momondo users find prices during this month for around $655.

How far in advance should I book a flight to Cologne?

You are more likely to see cheaper flights to Cologne from Boston when booking weeks ahead of your departure date. In general, you can expect to find flights to Cologne for around $723 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Cologne from Boston for as low as $537 on momondo.

Can stopping save me money on Boston to Cologne flights?

You could potentially save up to 39% on your flight if you consider stops on a Boston to Cologne flight.

When to book flights from Boston to Cologne

Are you open to changing your travel dates? Check out the ideal times to fly from Boston to Cologne according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Boston to Cologne (BOS to CGN) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Boston to Cologne

Fastest flight time

10h 20m

Direct flights

None
The fastest flight from Boston to Cologne takes 10h 20m
There are no direct flights from Boston to Cologne. There are no popular flight routes from Boston to Cologne.
Search flight deals

  • How far is Boston Logan Intl to Cologne Köln/Bonn by plane?

    A flight from Boston Logan Intl to Cologne Köln/Bonn will travel around 3569.0 mi. By plane, this route typically takes 10h 20m.

  • When did momondo last update prices for flights from Boston Logan Intl Airport to Cologne Köln/Bonn Airport?

    Prices for flights from Boston Logan Intl Airport to Cologne Köln/Bonn Airport refresh daily.

  • How many operators does momondo search for flights from Boston Logan Intl Airport to Cologne Köln/Bonn Airport?

  • How old do you have to be to fly from Boston Logan Intl Airport to Cologne Köln/Bonn Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Boston Logan Intl Airport to Cologne Köln/Bonn Airport.

  • What documentation or ID do you need to fly to Cologne Köln/Bonn Airport?

    The necessary travel and health documents for your Cologne Köln/Bonn Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from Boston to Cologne?

Best airlines flying from Boston to Cologne

Compare and see reviews for airlines that fly from Boston to Cologne with momondo
Airline
Rating
Free Cancellation
Price
LufthansaPriceFrom $508Free CancellationRating
6.8
7,871 reviews
Search Lufthansa flights
British AirwaysPriceFrom $551Free CancellationRating
6.7
7,820 reviews
Search British Airways flights
United AirlinesPriceFrom $575Free CancellationRating
7.4
9,488 reviews
Search United Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Boston to Cologne?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Boston to Cologne. momondo saves you time and could save you money on your trip.

Can I find flights from Boston to Cologne with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Cologne from Boston with this policy.

How can momondo help me find flights from Boston to Cologne?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Cologne from Boston.

I’m not ready to book a flight from Boston to Cologne right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Boston to Cologne now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Cologne and let you know when they change.

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