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Cheap flights from the United States to Frankfurt am Main from $399

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from the United States to Frankfurt am Main departing on 12/30. 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

Find the cheapest flights from the United States to Frankfurt am Main

Recent round-trip flight deals from the United States to Frankfurt am Main

Enter your travel dates to find the best prices.
Multiple Airlines Logo
5:25 pm - 5:45 pmBOS  Boston Logan Intl-FKB Karlsruhe Söllingen
18h 20m2 stops Dublin London Stansted
Multiple Airlines Logo
10:35 am - 8:55 pmFKB  Karlsruhe Söllingen-BOS Boston Logan Intl
40h 20m3 stops Palermo Punta Raisi Barcelona-El Prat Lisbon Humberto Delgado
$925Multiple Airlines
Sun, Oct 18 - Sat, Oct 24
Multiple Airlines Logo
12:30 pm - 5:45 pmBOS  Boston Logan Intl-FKB Karlsruhe Söllingen
23h 15m3 stops Toronto Pearson Intl Dublin London Stansted
Multiple Airlines Logo
10:35 am - 3:40 pmFKB  Karlsruhe Söllingen-BOS Boston Logan Intl
35h 05m3 stops Palermo Punta Raisi Barcelona-El Prat Lisbon Humberto Delgado
$942Multiple Airlines
Sun, Oct 18 - Sat, Oct 24
Multiple Airlines Logo
10:40 am - 6:45 pmBOS  Boston Logan Intl-FKB Karlsruhe Söllingen
26h 05m2 stops Montreal Pierre Elliott Trudeau Intl Palma de Mallorca Son Sant Joan
Multiple Airlines Logo
4:25 pm - 2:30 pmFKB  Karlsruhe Söllingen-BOS Boston Logan Intl
28h 05m2 stops Palma de Mallorca Son Sant Joan Vienna Intl
$1,025Multiple Airlines
Sun, Oct 18 - Sat, Oct 24
Multiple Airlines Logo
10:50 am - 6:45 pmBOS  Boston Logan Intl-FKB Karlsruhe Söllingen
25h 55m3 stops Toronto Pearson Intl Montreal Pierre Elliott Trudeau Intl Palma de Mallorca Son Sant Joan
Multiple Airlines Logo
4:25 pm - 2:30 pmFKB  Karlsruhe Söllingen-BOS Boston Logan Intl
28h 05m2 stops Palma de Mallorca Son Sant Joan Vienna Intl
$1,034Multiple Airlines
Sun, Oct 18 - Sat, Oct 24
Multiple Airlines Logo
5:25 pm - 10:25 pmBOS  Boston Logan Intl-FKB Karlsruhe Söllingen
23h 00m3 stops Dublin Amsterdam Schiphol Valencia
Multiple Airlines Logo
12:25 pm - 8:55 pmFKB  Karlsruhe Söllingen-BOS Boston Logan Intl
38h 30m3 stops Tangier Ibn Battouta Barcelona-El Prat Lisbon Humberto Delgado
$1,038Multiple Airlines
Sun, Oct 18 - Sat, Oct 24
Multiple Airlines Logo
5:50 am - 10:15 pmBOS  Boston Logan Intl-FKB Karlsruhe Söllingen
34h 25m3 stops Montreal Pierre Elliott Trudeau Intl Frankfurt am Main Sevilla
Multiple Airlines Logo
11:30 am - 9:50 amFKB  Karlsruhe Söllingen-BOS Boston Logan Intl
28h 20m3 stops Porto Lisbon Humberto Delgado Montreal Pierre Elliott Trudeau Intl
$1,143Multiple Airlines
Thu, Sep 17 - Thu, Sep 24
Multiple Airlines Logo
11:00 pm - 11:50 amBOS  Boston Logan Intl-FKB Karlsruhe Söllingen
30h 50m1 stop Porto
Multiple Airlines Logo
10:00 pm - 2:50 pmFKB  Karlsruhe Söllingen-BOS Boston Logan Intl
22h 50m2 stops Palma de Mallorca Son Sant Joan Dublin
$1,152Multiple Airlines
Sun, Oct 18 - Sat, Oct 24
Multiple Airlines Logo
3:05 pm - 10:50 pmLAX  Los Angeles Los Angeles-FKB Karlsruhe Söllingen
22h 45m2 stops Frankfurt am Main Palma de Mallorca Son Sant Joan
Multiple Airlines Logo
3:20 pm - 1:10 pmFKB  Karlsruhe Söllingen-LAX Los Angeles Los Angeles
30h 50m3 stops Palma de Mallorca Son Sant Joan Vienna Intl Frankfurt am Main
$1,160Multiple Airlines
Sun, Sep 20 - Sun, Sep 27
Multiple Airlines Logo
3:45 pm - 5:10 pmORD  Chicago O'Hare Intl-FKB Karlsruhe Söllingen
18h 25m2 stops Toronto Pearson Intl Porto
Multiple Airlines Logo
4:15 pm - 2:00 pmFKB  Karlsruhe Söllingen-ORD Chicago O'Hare Intl
28h 45m2 stops Malaga Dublin
$1,172Multiple Airlines
Wed, Sep 16 - Wed, Sep 23
Multiple Airlines Logo
3:45 pm - 5:10 pmORD  Chicago O'Hare Intl-FKB Karlsruhe Söllingen
18h 25m2 stops Toronto Pearson Intl Porto
Multiple Airlines Logo
12:00 pm - 7:48 pmFKB  Karlsruhe Söllingen-ORD Chicago O'Hare Intl
38h 48m3 stops London Stansted Munich Franz Josef Strauss Toronto Pearson Intl
$1,197Multiple Airlines
Wed, Sep 16 - Wed, Sep 23

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momondo Fare Finder

 
Customize your flight search to find flights from United States 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 August 7, 2026.
Use the filters below to find and compare flights from the United States to Karlsruhe that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BostonKarlsruhe

BOS Boston Logan Intl - FKB Karlsruhe Söllingen

BOSFKB

Boston Logan Intl

Sun 10/18

5:25 pm-5:45 pm

2 stops18h 20m

Karlsruhe Söllingen

Sat 10/24

10:35 am-8:55 pm

3 stops40h 20m

$925

BostonKarlsruhe

BOS Boston Logan Intl - FKB Karlsruhe Söllingen

BOSFKB

Boston Logan Intl

Sun 10/18

12:30 pm-5:45 pm

3 stops23h 15m

Karlsruhe Söllingen

Sat 10/24

10:35 am-3:40 pm

3 stops35h 05m

$942

BostonKarlsruhe

BOS Boston Logan Intl - FKB Karlsruhe Söllingen

BOSFKB

Boston Logan Intl

Sun 10/18

10:40 am-6:45 pm

2 stops26h 05m

Karlsruhe Söllingen

Sat 10/24

4:25 pm-2:30 pm

2 stops28h 05m

$1,025

BostonKarlsruhe

BOS Boston Logan Intl - FKB Karlsruhe Söllingen

BOSFKB

Boston Logan Intl

Sun 10/18

10:50 am-6:45 pm

3 stops25h 55m

Karlsruhe Söllingen

Sat 10/24

4:25 pm-2:30 pm

2 stops28h 05m

$1,034

BostonKarlsruhe

BOS Boston Logan Intl - FKB Karlsruhe Söllingen

BOSFKB

Boston Logan Intl

Sun 10/18

5:25 pm-10:25 pm

3 stops23h 00m

Karlsruhe Söllingen

Sat 10/24

12:25 pm-8:55 pm

3 stops38h 30m

$1,038

BostonKarlsruhe

BOS Boston Logan Intl - FKB Karlsruhe Söllingen

BOSFKB

Boston Logan Intl

Thu 9/17

5:50 am-10:15 pm

3 stops34h 25m

Karlsruhe Söllingen

Thu 9/24

11:30 am-9:50 am

3 stops28h 20m

$1,143

BostonKarlsruhe

BOS Boston Logan Intl - FKB Karlsruhe Söllingen

BOSFKB

Boston Logan Intl

Sun 10/18

11:00 pm-11:50 am

1 stop30h 50m

Karlsruhe Söllingen

Sat 10/24

10:00 pm-2:50 pm

2 stops22h 50m

$1,152

Los AngelesKarlsruhe

LAX Los Angeles Los Angeles - FKB Karlsruhe Söllingen

LAXFKB

Los Angeles Los Angeles

Sun 9/20

3:05 pm-10:50 pm

2 stops22h 45m

Karlsruhe Söllingen

Sun 9/27

3:20 pm-1:10 pm

3 stops30h 50m

$1,160
Quickest round-trip

ChicagoKarlsruhe

ORD Chicago O'Hare Intl - FKB Karlsruhe Söllingen

ORDFKB

Chicago O'Hare Intl

Wed 9/16

3:45 pm-5:10 pm

2 stops18h 25m

Karlsruhe Söllingen

Wed 9/23

4:15 pm-2:00 pm

2 stops28h 45m

$1,172

ChicagoKarlsruhe

ORD Chicago O'Hare Intl - FKB Karlsruhe Söllingen

ORDFKB

Chicago O'Hare Intl

Wed 9/16

3:45 pm-5:10 pm

2 stops18h 25m

Karlsruhe Söllingen

Wed 9/23

12:00 pm-7:48 pm

3 stops38h 48m

$1,197

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 Frankfurt am Main from

How to get the cheapest flight ticket from United States 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?

Lufthansa, Condor and United Airlines are the top three most popular airlines that fly to Karlsruhe from United States according to our data. Lufthansa is the first choice among our users, with 39% of people opting to fly with this airline when traveling to Karlsruhe. Keep in mind that there are 26 different airlines that fly to Karlsruhe on a routine basis, so you have a few additional options to choose from.

Cheap United States to Karlsruhe flight deals and tips

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

Fastest flight time

14h 05m

Direct flights

None
The fastest flight from United States to Karlsruhe takes 14h 05m
There are no direct flights from United States to Karlsruhe. There are no popular flight routes from United States to Karlsruhe.
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Frequently asked questions about flying from the United States to Karlsruhe

  • When did momondo last update prices for flights from United States to Karlsruhe Söllingen Airport?

    Prices for flights from United States to Karlsruhe Söllingen Airport refresh daily.

  • How old do you have to be to fly from United States to Karlsruhe Söllingen Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from United States to Karlsruhe Söllingen Airport.

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

    The required travel and health documents for your Karlsruhe Söllingen Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Karlsruhe Söllingen Airport. We recommend that you seek guidance from your airline or a reliable 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 United States to Karlsruhe?

It is quick and easy to find United States to Karlsruhe flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Karlsruhe that suits you.

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

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

How can momondo help me find flights from United States to Karlsruhe?

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 Karlsruhe from United States.

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

Yes momondo offers price alerts on flights to Karlsruhe from United States. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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