| Date | From | To | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Jul 19 | BOS | FRA | 22:00 | 11:15 |
Scheduled
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| Jul 18 | BOS | FRA | 22:20 | 11:13 |
Landed
|
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| Jul 17 | BOS | FRA | 22:28 | 11:16 |
Landed
|
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| Jul 16 | BOS | FRA | 23:04 | 12:01 |
Delayed
|
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| Jul 15 | BOS | FRA | 22:24 | 11:11 |
Landed
|
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| Jul 14 | BOS | FRA | 22:16 | 11:04 |
Landed
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| Jul 13 | BOS | FRA | 22:27 | 11:20 |
Landed
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| Jul 12 | BOS | FRA | 22:24 | 11:10 |
Landed
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| Jul 11 | BOS | FRA | 22:30 | 11:16 |
Landed
|
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| Jul 10 | BOS | FRA | 22:28 | 11:10 |
Landed
|
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Lufthansa Flight LH421 connects Boston, United States to Frankfurt, Germany, taking off from Boston Logan International Airport BOS and landing at Frankfurt Airport FRA.
How long is the LH421 flight from Boston to Frankfurt?
The average flight time from Boston to Frankfurt is 6 hours and 48 minutes. The flight distance is 5888 km / 3658 miles and the average flight speed is 859 km/h / 534 mph.
How many LH421 flights are operated per week?
7 flights per week. The flight LH421 is operated on Monday, Tuesday, Wednesday, Thursday, Friday, Saturday and Sunday.
What is the On-Time Performance (OTP) of Lufthansa Flight LH421 Boston to Frankfurt?
The Airportia On-Time Performance Rating for Lufthansa Flight LH421 is 4.9/5 stars. This metric is calculated using data from the past 10 flights.
Which terminal is the flight LH421 arriving at?
Flight LH421 arrives at Frankfurt Airport (FRA) Terminal 1.
When was the latest LH421 flight?
The latest flight took off on Monday, July 20th, 2026 with the flight status being Scheduled on 11:15.
How else can the flight LH421 be referenced as?
This Lufthansa flight can also be referenced as DLH421, LH0421, LH 421, DLH 421.
How often is flight LH421 delayed?
On average, 40% of all LH421 flights are delayed. The average delay is 13 minutes.
Can I get compensation for my delayed or cancelled LH421 flight or baggage issues?
If your LH421 flight was cancelled, delayed, or if you experienced baggage issues such as delayed, damaged, or lost bags, you may be entitled to compensation. Compensation amounts and eligibility depend on various regulations, including EC 261/2004, UK261, CA Montreal Convention, US GoodWill, BR-ANAC, SA-GACA and TK-SHY.
See our LH421 Flight Tracker above for more details.
Other flights departing from Boston BOS: DL5840, DL8801, QR744, WN585
Other flights arriving at Frankfurt FRA: LH447, UA46, LH405, UA932
All flights connecting Boston BOS to Frankfurt FRA.
