Cheap flights from Boston to Frankfurt am Main from $1,341

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Boston to Frankfurt am Main departing on 12/23. 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
0 bags

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Find the cheapest flights from Boston to Frankfurt am Main

Cheap round-trip flights

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7:10 pm - 2:05 pmBOS-FKB
12h 55m1 stop
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10:55 pm - 5:50 pmFKB-BOS
24h 55m2 stops
$1,341
Find Deal
Tue, Dec 23 - Sat, Jan 3

momondo Fare Finder

 
Customize your flight search to find flights from Boston to Karlsruhe 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 September 11, 2025.
Use the filters below to find and compare flights from Boston to Karlsruhe that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BostonKarlsruhe

BOS - FKB

BOSFKB

Boston Logan Intl

Tue 12/23

7:10 pm-2:05 pm

1 stop12h 55m

Karlsruhe Söllingen

Sat 1/3

10:55 pm-5:50 pm

2 stops24h 55m

$1,341

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

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How to get the cheapest flight ticket from Boston to Karlsruhe

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 airlines fly to Karlsruhe?

Condor, Lufthansa and Icelandair are the top three most popular airlines that fly to Karlsruhe from Boston according to our data. Condor is the first choice among our users, with 51% of people opting to fly with this airline when traveling to Karlsruhe. Keep in mind that there are 15 different airlines that fly to Karlsruhe on a routine basis, so you have a few additional options to choose from.

When to book flights from Boston to Karlsruhe

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

Cheap Boston to Karlsruhe (BOS to FKB) flight deals and tips

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

Direct flights

None
There are no direct flights from Boston to Karlsruhe. There are no popular flight routes from Boston to Karlsruhe.
  • How far is Boston Logan Intl to Karlsruhe Söllingen by plane?

    The distance between Boston Logan Intl and Karlsruhe Söllingen is about 3682.1 mi. A reasonable flight in good conditions will take 12h 55m.

  • When did momondo last update prices for flights from Boston Logan Intl Airport to Karlsruhe Söllingen Airport?

    Prices for flights from Boston Logan Intl Airport to Karlsruhe Söllingen Airport were last updated today.

  • How old do you have to be to fly from Boston Logan Intl Airport to Karlsruhe Söllingen Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Boston Logan Intl Airport to Karlsruhe Söllingen Airport.

  • What documentation or ID do you need to fly to Karlsruhe Söllingen Airport?

    The travel and health documents you'll need for your trip to Karlsruhe Söllingen Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Karlsruhe Söllingen Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Traveling to a place near Frankfurt am Main?

Book flights to Frankfurt am Main if you plan to visit one of these locations
Freiburg im Breisgau
Offenburg
Lörrach
Gengenbach

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Boston to Karlsruhe for you.

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

Yes. momondo allows you to filter the results for Boston to Karlsruhe flights to just show those with flexible booking policies.

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

momondo provides multiple filters to help you find the best flight to Karlsruhe from Boston. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

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

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1 adult
Sat 10/11
Sat 10/18

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