$337+ Cheap flights from Boston (BOS) to Cologne (CGN)
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 6/16. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — CGN
Jun 26 — Jul 31
Round-trip
1 adult, Economy
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Find cheap flights from Boston to Cologne with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Best
Last-minute
One-way
Cheapest flights from Boston to CologneExplore the most affordable flight options available from Boston to Cologne. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 27, 2026.
Explore the most affordable flight options available from Boston to Cologne. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 27, 2026.
This FlightHub deal was found by Cheapflights users on 5/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/145:10 pm
BOS
- CGN
1 stop20h 45m
Austrian Airlines
Mon 9/288:40 pm
CGN
- BOS
1 stop23h 10m
Austrian Airlines
Deal found 5/24![Austrian Airlines logo]()
$803
This KAYAK deal was found by Cheapflights users on 5/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/155:10 pm
BOS
- CGN
1 stop20h 45m
Austrian Airlines
Mon 9/288:40 pm
CGN
- BOS
1 stop23h 10m
Austrian Airlines
Deal found 5/24![Austrian Airlines logo]()
$809
This Air Canada deal was found by Cheapflights users on 5/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/126:55 pm
BOS
- CGN
2 stops40h 25m
Air Canada
Thu 9/241:05 pm
CGN
- BOS
2 stops14h 22m
Air Canada
Deal found 5/24![Air Canada logo]()
$814
This Cheapflightsfares deal was found by Cheapflights users on 5/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/248:40 pm
BOS
- CGN
1 stop16h 35m
Lufthansa
Sun 11/299:10 am
CGN
- BOS
1 stop15h 25m
Lufthansa
Deal found 5/26![Lufthansa logo]()
$820
This Turkish Airlines deal was found by Cheapflights users on 5/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/288:00 pm
BOS
- CGN
1 stop15h 10m
Turkish Airlines
Fri 12/411:30 am
CGN
- BOS
1 stop36h 35m
Turkish Airlines
Deal found 5/26![Turkish Airlines logo]()
$822
This Turkish Airlines deal was found by Cheapflights users on 5/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/269:50 pm
BOS
- CGN
1 stop29h 35m
Turkish Airlines
Fri 10/22:50 pm
CGN
- BOS
1 stop35h 05m
Turkish Airlines
Deal found 5/23![Turkish Airlines logo]()
$823
This Cheapflightsfares deal was found by Cheapflights users on 5/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/288:40 pm
BOS
- CGN
1 stop10h 10m
Lufthansa
Sat 12/51:35 pm
CGN
- BOS
1 stop11h 00m
Lufthansa
Deal found 5/24![Lufthansa logo]()
$829
This Gotogate deal was found by Cheapflights users on 5/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/288:40 pm
BOS
- CGN
1 stop10h 10m
Multiple Airlines
Fri 12/48:20 pm
CGN
- BOS
2 stops29h 57m
Multiple Airlines
Deal found 5/26![Multiple Airlines logo]()
$831
This Cheapflightsfares deal was found by Cheapflights users on 5/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/138:05 pm
BOS
- CGN
1 stop10h 20m
Lufthansa
Sun 9/271:05 pm
CGN
- BOS
1 stop10h 35m
Lufthansa
Deal found 5/24![Lufthansa logo]()
$849
This Kiwi.com deal was found by Cheapflights users on 5/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/1610:55 pm
BOS
- CGN
1 stop11h 55m
Multiple Airlines
Wed 9/309:15 am
CGN
- BOS
1 stop17h 50m
Multiple Airlines
Deal found 5/24![Multiple Airlines logo]()
$850
This Kiwi.com deal was found by Cheapflights users on 5/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/158:50 pm
BOS
- CGN
2 stops18h 15m
Multiple Airlines
Sun 9/271:20 pm
CGN
- BOS
1 stop14h 25m
Multiple Airlines
Deal found 5/24![Multiple Airlines logo]()
$852
Best flights from Boston to CologneDiscover carefully curated flight deals from Boston to Cologne that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated May 27, 2026.
Discover carefully curated flight deals from Boston to Cologne that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated May 27, 2026.
This Lufthansa deal was found by Cheapflights users on 5/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/258:05 pm
BOS
- CGN
1 stop10h 20m
Lufthansa
Fri 10/21:05 pm
CGN
- BOS
1 stop10h 35m
Lufthansa
Deal found 5/23![Lufthansa logo]()
$863
This United Airlines deal was found by Cheapflights users on 5/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/257:30 am
BOS
- CGN
2 stops28h 10m
United Airlines
Fri 10/21:05 pm
CGN
- BOS
1 stop10h 35m
United Airlines
Deal found 5/23![United Airlines logo]()
$867
This Turkish Airlines deal was found by Cheapflights users on 5/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/119:50 pm
BOS
- CGN
1 stop29h 35m
Turkish Airlines
Thu 9/2410:25 am
CGN
- BOS
1 stop15h 30m
Turkish Airlines
Deal found 5/24![Turkish Airlines logo]()
$939
This Air Canada deal was found by Cheapflights users on 5/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/303:35 pm
BOS
- CGN
2 stops14h 50m
Air Canada
Wed 8/121:05 pm
CGN
- BOS
2 stops14h 22m
Air Canada
Deal found 5/22![Air Canada logo]()
$1,029
This Lufthansa deal was found by Cheapflights users on 5/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/258:05 pm
BOS
- CGN
1 stop10h 20m
Lufthansa
Sat 10/31:05 pm
CGN
- BOS
1 stop10h 35m
Lufthansa
Deal found 5/23![Lufthansa logo]()
$923
This United Airlines deal was found by Cheapflights users on 5/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/2510:50 am
BOS
- CGN
2 stops24h 50m
United Airlines
Sat 10/38:30 am
CGN
- BOS
1 stop15h 10m
United Airlines
Deal found 5/23![United Airlines logo]()
$927
This Turkish Airlines deal was found by Cheapflights users on 5/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/119:50 pm
BOS
- CGN
1 stop14h 20m
Turkish Airlines
Fri 9/257:10 pm
CGN
- BOS
1 stop30h 45m
Turkish Airlines
Deal found 5/24![Turkish Airlines logo]()
$939
This Turkish Airlines deal was found by Cheapflights users on 5/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/159:50 pm
BOS
- CGN
1 stop14h 20m
Turkish Airlines
Sat 9/267:10 pm
CGN
- BOS
1 stop30h 45m
Turkish Airlines
Deal found 5/24![Turkish Airlines logo]()
$959
This United Airlines deal was found by Cheapflights users on 5/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/279:40 pm
BOS
- CGN
2 stops13h 40m
United Airlines
Tue 8/111:05 pm
CGN
- BOS
1 stop10h 35m
United Airlines
Deal found 5/25![United Airlines logo]()
$983
This Cheapflightsfares deal was found by Cheapflights users on 5/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/308:05 pm
BOS
- CGN
1 stop10h 20m
Lufthansa
Wed 8/128:30 am
CGN
- BOS
1 stop15h 10m
Lufthansa
Deal found 5/25![Lufthansa logo]()
$1,001
Last-minute flights from Boston to CologneDiscover last-minute flight deals from Boston to Cologne. Data last updated May 27, 2026 and is based on user searches.
Discover last-minute flight deals from Boston to Cologne. Data last updated May 27, 2026 and is based on user searches.
This Mytrip deal was found by Cheapflights users on 5/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/265:45 am
BOS
- CGN
3 stops29h 00m
Multiple Airlines
Wed 7/110:50 pm
CGN
- BOS
3 stops29h 48m
Multiple Airlines
Deal found 5/25![Multiple Airlines logo]()
$1,043
This Kiwi.com deal was found by Cheapflights users on 5/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/2811:30 pm
BOS
- CGN
1 stop19h 45m
Multiple Airlines
Tue 7/711:15 pm
CGN
- BOS
2 stops26h 26m
Multiple Airlines
Deal found 5/26![Multiple Airlines logo]()
$892
This Kiwi.com deal was found by Cheapflights users on 5/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/2811:30 pm
BOS
- CGN
1 stop19h 45m
Multiple Airlines
Sat 7/47:50 pm
CGN
- BOS
2 stops49h 20m
Multiple Airlines
Deal found 5/26![Multiple Airlines logo]()
$1,013
This Kiwi.com deal was found by Cheapflights users on 5/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/2811:30 pm
BOS
- CGN
1 stop19h 45m
Multiple Airlines
Thu 7/98:15 am
CGN
- BOS
2 stops17h 40m
Multiple Airlines
Deal found 5/26![Multiple Airlines logo]()
$1,089
This Kiwi.com deal was found by Cheapflights users on 5/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/2910:50 pm
BOS
- CGN
1 stop28h 00m
Multiple Airlines
Mon 7/610:50 am
CGN
- BOS
1 stop15h 30m
Multiple Airlines
Deal found 5/24![Multiple Airlines logo]()
$1,098
This Mytrip deal was found by Cheapflights users on 5/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/305:45 am
BOS
- CGN
2 stops34h 40m
Multiple Airlines
Tue 7/76:20 am
CGN
- BOS
2 stops21h 07m
Multiple Airlines
Deal found 5/25![Multiple Airlines logo]()
$969
This Cheapflightsfares deal was found by Cheapflights users on 5/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/308:05 pm
BOS
- CGN
1 stop17h 25m
Lufthansa
Tue 7/78:30 am
CGN
- BOS
1 stop15h 10m
Lufthansa
Deal found 5/25![Lufthansa logo]()
$1,149
One-way flights from Boston to CologneSearch for one-way flight options from Boston to Cologne. Find affordable one-way fares based on user searches. Data last updated May 27, 2026.
Search for one-way flight options from Boston to Cologne. Find affordable one-way fares based on user searches. Data last updated May 27, 2026.
This Kiwi.com deal was found by Cheapflights users on 5/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/1610:05 am
BOS
- CGN
3 stops43h 15m
Multiple Airlines
Deal found 5/26![Multiple Airlines logo]()
$337
This Kiwi.com deal was found by Cheapflights users on 5/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/711:15 am
BOS
- CGN
3 stops53h 25m
Multiple Airlines
Deal found 5/24![Multiple Airlines logo]()
$351
This Kiwi.com deal was found by Cheapflights users on 5/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/811:15 am
BOS
- CGN
3 stops29h 25m
Multiple Airlines
Deal found 5/24![Multiple Airlines logo]()
$381
This Kiwi.com deal was found by Cheapflights users on 5/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/2811:30 pm
BOS
- CGN
2 stops51h 35m
Multiple Airlines
Deal found 5/26![Multiple Airlines logo]()
$383
This Kiwi.com deal was found by Cheapflights users on 5/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/38:50 pm
BOS
- CGN
2 stops32h 05m
Multiple Airlines
Deal found 5/22![Multiple Airlines logo]()
$409
This Kiwi.com deal was found by Cheapflights users on 5/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/276:35 pm
BOS
- CGN
3 stops58h 45m
Multiple Airlines
Deal found 5/26![Multiple Airlines logo]()
$424
This Kiwi.com deal was found by Cheapflights users on 5/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/47:10 am
BOS
- CGN
3 stops47h 25m
Multiple Airlines
Deal found 5/25![Multiple Airlines logo]()
$460
Find flight deals from Boston to Cologne
Discover tips and strategies to find the most affordable flight options for your journey from Boston (BOS) to Cologne (CGN). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated May 27, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $803 (FlightHub) |
One-way from | $337 (Kiwi.com) |
Popular in | June |
Cheapest in | March |
Average price | $729 |
Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated May 27, 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
Cheapest round-trip
Quickest round-trip
BostonCologne
BOS - CGN
BOSCGN
Boston Logan Intl
Fri 9/25
8:05 pm-12:25 pm
1 stop10h 20m
Cologne Köln/Bonn
Fri 10/2
1:05 pm-5:40 pm
1 stop10h 35m
$863
BostonCologne
BOS - CGN
BOSCGN
Boston Logan Intl
Fri 9/25
7:30 am-5:40 pm
2 stops28h 10m
Cologne Köln/Bonn
Fri 10/2
1:05 pm-5:40 pm
1 stop10h 35m
$867
BostonCologne
BOS - CGN
BOSCGN
Boston Logan Intl
Fri 9/25
8:05 pm-12:25 pm
1 stop10h 20m
Cologne Köln/Bonn
Sat 10/3
1:05 pm-5:40 pm
1 stop10h 35m
$923
BostonCologne
BOS - CGN
BOSCGN
Boston Logan Intl
Fri 9/25
10:50 am-5:40 pm
2 stops24h 50m
Cologne Köln/Bonn
Sat 10/3
8:30 am-5:40 pm
1 stop15h 10m
$927
BostonCologne
BOS - CGN
BOSCGN
Boston Logan Intl
Fri 9/11
9:50 pm-9:25 am
1 stop29h 35m
Cologne Köln/Bonn
Thu 9/24
10:25 am-7:55 pm
1 stop15h 30m
$939
BostonCologne
BOS - CGN
BOSCGN
Boston Logan Intl
Fri 9/11
9:50 pm-6:10 pm
1 stop14h 20m
Cologne Köln/Bonn
Fri 9/25
7:10 pm-7:55 pm
1 stop30h 45m
$939
BostonCologne
BOS - CGN
BOSCGN
Boston Logan Intl
Tue 9/15
9:50 pm-6:10 pm
1 stop14h 20m
Cologne Köln/Bonn
Sat 9/26
7:10 pm-7:55 pm
1 stop30h 45m
$959
BostonCologne
BOS - CGN
BOSCGN
Boston Logan Intl
Mon 7/27
9:40 pm-5:20 pm
2 stops13h 40m
Cologne Köln/Bonn
Tue 8/11
1:05 pm-5:40 pm
1 stop10h 35m
$983
BostonCologne
BOS - CGN
BOSCGN
Boston Logan Intl
Thu 7/30
8:05 pm-12:25 pm
1 stop10h 20m
Cologne Köln/Bonn
Wed 8/12
8:30 am-5:40 pm
1 stop15h 10m
$1,001
BostonCologne
BOS - CGN
BOSCGN
Boston Logan Intl
Thu 7/30
3:35 pm-12:25 pm
2 stops14h 50m
Cologne Köln/Bonn
Wed 8/12
1:05 pm-9:27 pm
2 stops14h 22m
$1,029
Showing 1-10 of 17 resultsSorted by cheapest first
Compare providers for flights from Boston to Cologne
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Boston to Cologne in May.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Boston-Cologne flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Boston-Cologne flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Boston-Cologne flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Boston-Cologne flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Boston-Cologne flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Boston to Cologne
Have a flexible travel schedule? Discover the best time to fly to Cologne from Boston with our price prediction graph.
BOS-CGN
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Boston to Cologne
What is the cheapest month to book a flight from Boston to Cologne?
Currently, March is the cheapest month in which you can book a flight from Boston to Cologne (average of $593). Flying from Boston to Cologne in June is currently the most expensive (average of $1,035). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
How much does it cost to fly round-trip from Boston to Cologne?
Reviews of airlines servicing Cologne
Get insights into the airlines that provide service to Cologne. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Cologne. Reviews last updated May 27, 2026.
Get a feel of what it's like to fly with United Airlines,Lufthansa, andBritish Airways from Boston to Cologne by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Boarding
7.7
Crew
8.1
Entertainment
7.1
Comfort
7.3
Food
6.6
Overall
7.4
Reviews
1 / 20
4.0
OkayDynasty,May 2026
LAX - EWR
Boarding
7.7
Crew
8.1
Entertainment
7.1
Comfort
7.3
Food
6.6
Overall
7.4
Reviews
1 / 20
4.0
OkayDynasty,May 2026
LAX - EWR
Boarding
7.7
Crew
8.1
Entertainment
7.1
Comfort
7.3
Food
6.6
Overall
7.4
Reviews
1 / 20
4.0
OkayDynasty,May 2026
LAX - EWR
Boarding
7.7
Crew
8.1
Entertainment
7.1
Comfort
7.3
Food
6.6
Overall
7.4
Reviews
1 / 20
4.0
OkayDynasty,May 2026
LAX - EWR
Related info for your journey
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| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$508 | Average$713 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$527 | Average$681 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$575 | Average$1,146 | FlexibilityNo cancel fee | On-time69% |