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Cheap flights from Boston to Cologne from $318

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 7/15. 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

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Boston to Cologne

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
8:50 pm - 11:20 pm
BOS
-
CGN
20h 30m
2 stops
Multiple Airlines Logo
10:55 pm - 7:15 pm
CGN
-
BOS
26h 20m
2 stops
$670Multiple Airlines
Sun, Aug 23 - Fri, Aug 28
Multiple Airlines Logo
8:50 pm - 11:20 pm
BOS
-
CGN
20h 30m
2 stops
Multiple Airlines Logo
10:55 pm - 7:15 pm
CGN
-
BOS
26h 20m
3 stops
$680Multiple Airlines
Sun, Aug 23 - Fri, Aug 28
Multiple Airlines Logo
8:50 pm - 7:30 pm
BOS
-
CGN
16h 40m
2 stops
Multiple Airlines Logo
10:50 pm - 8:20 pm
CGN
-
BOS
27h 30m
2 stops
$702Multiple Airlines
Wed, Sep 16 - Wed, Sep 30
Multiple Airlines Logo
9:15 pm - 10:30 pm
BOS
-
CGN
19h 15m
1 stop
Multiple Airlines Logo
10:55 pm - 7:15 pm
CGN
-
BOS
26h 20m
2 stops
$718Multiple Airlines
Thu, Aug 20 - Fri, Aug 28
Multiple Airlines Logo
9:15 pm - 9:05 pm
BOS
-
CGN
17h 50m
1 stop
Multiple Airlines Logo
10:55 pm - 7:15 pm
CGN
-
BOS
26h 20m
2 stops
$721Multiple Airlines
Sat, Aug 22 - Fri, Aug 28
Multiple Airlines Logo
8:50 pm - 11:20 pm
BOS
-
CGN
20h 30m
2 stops
Multiple Airlines Logo
9:30 pm - 10:40 pm
CGN
-
BOS
31h 10m
3 stops
$727Multiple Airlines
Sun, Sep 6 - Sun, Sep 27
Multiple Airlines Logo
8:50 pm - 1:05 am
BOS
-
CGN
22h 15m
3 stops
Multiple Airlines Logo
10:50 pm - 2:45 pm
CGN
-
BOS
21h 55m
2 stops
$739Multiple Airlines
Wed, Sep 16 - Wed, Sep 30
Lufthansa Logo
8:40 pm - 12:50 pm
BOS
-
CGN
10h 10m
1 stop
Lufthansa Logo
6:00 pm - 1:45 pm
CGN
-
BOS
25h 45m
2 stops
$758Lufthansa
Wed, Dec 2 - Sun, Dec 6
United Airlines Logo
9:50 pm - 5:15 pm
BOS
-
CGN
13h 25m
2 stops
United Airlines Logo
1:35 pm - 6:35 pm
CGN
-
BOS
11h 00m
1 stop
$759United Airlines
Wed, Nov 11 - Thu, Nov 19
Multiple Airlines Logo
8:50 pm - 11:20 pm
BOS
-
CGN
20h 30m
2 stops
Multiple Airlines Logo
1:20 pm - 2:45 pm
CGN
-
BOS
31h 25m
2 stops
$760Multiple Airlines
Sun, Sep 6 - Sun, Sep 27

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Lufthansa flights from Boston to Cologne

Our best Lufthansa deals on Boston to Cologne flight tickets
Lufthansa
Dec 2
BOS8:40 pmBoston Logan Intl
10h 10m
1 stop
CGN12:50 pmCologne Köln/Bonn
Dec 6
CGN6:00 pmCologne Köln/Bonn
25h 45m
2 stops
BOS1:45 pmBoston Logan Intl
$758
Lufthansa
Aug 3
BOS8:05 pmBoston Logan Intl
17h 25m
1 stop
CGN7:30 pmCologne Köln/Bonn
Aug 19
CGN6:05 pmCologne Köln/Bonn
29h 35m
1 stop
BOS5:40 pmBoston Logan Intl
$768
Lufthansa
Dec 4
BOS8:40 pmBoston Logan Intl
10h 10m
1 stop
CGN12:50 pmCologne Köln/Bonn
Dec 11
CGN1:20 pmCologne Köln/Bonn
11h 15m
1 stop
BOS6:35 pmBoston Logan Intl
$770

United Airlines flights from Boston to Cologne

Our best United Airlines deals on Boston to Cologne flight tickets
United Airlines
Nov 11
BOS9:50 pmBoston Logan Intl
13h 25m
2 stops
CGN5:15 pmCologne Köln/Bonn
Nov 19
CGN1:35 pmCologne Köln/Bonn
11h 00m
1 stop
BOS6:35 pmBoston Logan Intl
$759
United Airlines
Nov 25
BOS9:50 pmBoston Logan Intl
13h 25m
2 stops
CGN5:15 pmCologne Köln/Bonn
Nov 30
CGN9:20 amCologne Köln/Bonn
15h 15m
1 stop
BOS6:35 pmBoston Logan Intl
$836
United Airlines
Jul 3
BOS8:05 pmBoston Logan Intl
10h 20m
1 stop
CGN12:25 pmCologne Köln/Bonn
Jul 10
CGN1:05 pmCologne Köln/Bonn
14h 48m
2 stops
BOS9:53 pmBoston Logan Intl
$1,373

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 June 29, 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

Sun 8/23

8:50 pm-11:20 pm

2 stops20h 30m

Cologne Köln/Bonn

Fri 8/28

10:55 pm-7:15 pm

2 stops26h 20m

$670

BostonCologne

BOS - CGN

BOSCGN

Boston Logan Intl

Sun 8/23

8:50 pm-11:20 pm

2 stops20h 30m

Cologne Köln/Bonn

Fri 8/28

10:55 pm-7:15 pm

3 stops26h 20m

$680

BostonCologne

BOS - CGN

BOSCGN

Boston Logan Intl

Wed 9/16

8:50 pm-7:30 pm

2 stops16h 40m

Cologne Köln/Bonn

Wed 9/30

10:50 pm-8:20 pm

2 stops27h 30m

$702

BostonCologne

BOS - CGN

BOSCGN

Boston Logan Intl

Thu 8/20

9:15 pm-10:30 pm

1 stop19h 15m

Cologne Köln/Bonn

Fri 8/28

10:55 pm-7:15 pm

2 stops26h 20m

$718

BostonCologne

BOS - CGN

BOSCGN

Boston Logan Intl

Sat 8/22

9:15 pm-9:05 pm

1 stop17h 50m

Cologne Köln/Bonn

Fri 8/28

10:55 pm-7:15 pm

2 stops26h 20m

$721

BostonCologne

BOS - CGN

BOSCGN

Boston Logan Intl

Sun 9/6

8:50 pm-11:20 pm

2 stops20h 30m

Cologne Köln/Bonn

Sun 9/27

9:30 pm-10:40 pm

3 stops31h 10m

$727

BostonCologne

BOS - CGN

BOSCGN

Boston Logan Intl

Wed 9/16

8:50 pm-1:05 am

3 stops22h 15m

Cologne Köln/Bonn

Wed 9/30

10:50 pm-2:45 pm

2 stops21h 55m

$739

BostonCologne

BOS - CGN

BOSCGN

Boston Logan Intl

Wed 12/2

8:40 pm-12:50 pm

1 stop10h 10m

Cologne Köln/Bonn

Sun 12/6

6:00 pm-1:45 pm

2 stops25h 45m

$758
Quickest round-trip

BostonCologne

BOS - CGN

BOSCGN

Boston Logan Intl

Wed 11/11

9:50 pm-5:15 pm

2 stops13h 25m

Cologne Köln/Bonn

Thu 11/19

1:35 pm-6:35 pm

1 stop11h 00m

$759

BostonCologne

BOS - CGN

BOSCGN

Boston Logan Intl

Sun 9/6

8:50 pm-11:20 pm

2 stops20h 30m

Cologne Köln/Bonn

Sun 9/27

1:20 pm-2:45 pm

2 stops31h 25m

$760

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 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 August is also very affordable. Most momondo users find prices during this month for around $646.

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 10m

Direct flights

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

Frequently asked questions about flying from Boston to Cologne

  • 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 10m.

  • 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
8,106 reviews
Search Lufthansa flights
British AirwaysPriceFrom $527Free CancellationRating
6.7
8,082 reviews
Search British Airways flights
United AirlinesPriceFrom $575Free CancellationRating
7.4
9,895 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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