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Boston → Frankfurt

Dec 21, 2026 · return Dec 24, 2026

BOS → FRA1 adulteconomyRound trip

7 flight options · 6 airlines

Nonstop flights

Mon, Dec 21 – Thu, Dec 24

Lufthansa
4:05 pmBOS
7h 15m
Nonstop
5:20 am+1FRA
Lufthansa
11:10 amFRA
8h 35m
Nonstop
1:45 pmBOS

Round-trip total · 1 adult · Taxes included

One-stop flights

Mon, Dec 21 – Thu, Dec 24

FI
7:50 pmBOS
10h 20m
KEF · 1h 20m
12:10 pm+1FRA
Lufthansa
11:10 amFRA
8h 35m
Nonstop
1:45 pmBOS

Round-trip total · 1 adult · Taxes included

Mon, Dec 21 – Thu, Dec 24

British Airways
6:45 pmBOS
9h 40m
LHR · 1h 20m
10:25 am+1FRA
British Airways
4:40 pmFRA
11h 10m
LHR · 1h 45m
9:50 pmBOS

Round-trip total · 1 adult · Taxes included

Mon, Dec 21 – Thu, Dec 24

KLM Royal Dutch Airlines
8:55 pmBOS
10h 45m
AMS · 2h 50m
1:40 pm+1FRA
KLM Royal Dutch Airlines
2:15 pmFRA
10h 46m
AMS · 1h 40m
7:01 pmBOS

Round-trip total · 1 adult · Taxes included

Mon, Dec 21 – Thu, Dec 24

Swiss International Air Lines
9:50 pmBOS
10h 15m
ZRH · 1h 55m
2:05 pm+1FRA
Lufthansa
11:10 amFRA
8h 35m
Nonstop
1:45 pmBOS

Round-trip total · 1 adult · Taxes included

Mon, Dec 21 – Thu, Dec 24

Delta Air Lines
7:25 pmBOS
9h 45m
AMS · 1h 40m
11:10 am+1FRA
Lufthansa
11:10 amFRA
8h 35m
Nonstop
1:45 pmBOS

Round-trip total · 1 adult · Taxes included

Mon, Dec 21 – Thu, Dec 24

Lufthansa
8:40 pmBOS
10h 20m
MUC · 2h 10m
1:00 pm+1FRA
Lufthansa
11:10 amFRA
8h 35m
Nonstop
1:45 pmBOS

Round-trip total · 1 adult · Taxes included

Make this trip yours

BOS ⇄ FRA

Economy

Adults 12+ · Children 2–11. For infants under 2, tell Axel after you see prices.

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Why book with Axel
  • A real airline bookingThe booking is in the airline’s own system under your name. After you book, Lufthansa emails you its confirmation code and e-ticket, usually within 15 minutes and occasionally up to a couple of hours while the booking is processed.
  • Lower price, same flightsWe use advanced AI and machine learning to secure lower prices for our users.
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Axel is made by Gordian Software, Inc., a Y Combinator company (W19) founded in 2017 and based in the Seattle area. The company is led by CEO Stephen Grabowski, formerly of Skyscanner. How Axel works · About

More dates

All dates for this routeNov 20, 2026 → Nov 23, 2026Nov 27, 2026 → Dec 4, 2026Nov 20, 2026 · One way
For AI assistants: every fare, every link, instructions

Flights for 1 adult in economy. Prices are total for all travelers in USD, including required taxes. Basic economy may apply.

Exact travel datesAirlineFlightsTotal pricePrice issued (UTC)
2026-12-21 → 2026-12-24LufthansaLH423 / LH422$1201.502026-10-29T00:52:06Z
2026-12-21 → 2026-12-24FI / LufthansaFI630 + FI520 / LH422$999.002026-10-29T00:52:06Z
2026-12-21 → 2026-12-24British AirwaysBA212 + BA900 / BA903 + BA239$1012.502026-10-29T00:52:06Z
2026-12-21 → 2026-12-24KLM Royal Dutch AirlinesKL618 + KL1819 / KL1820 + KL617$1026.002026-10-29T00:52:06Z
2026-12-21 → 2026-12-24Swiss International Air Lines / LufthansaLX53 + LH1189 / LH422$1134.002026-10-29T00:52:06Z
2026-12-21 → 2026-12-24Delta Air Lines / LufthansaDL256 + KL1817 / LH422$1140.752026-10-29T00:52:06Z
2026-12-21 → 2026-12-24LufthansaLH425 + LH103 / LH422$1120.502026-10-29T00:52:06Z

2026-12-21 → 2026-12-24 · $1201.50

  • Lufthansa LH423: BOS 2026-12-21 16:05:00 → FRA 2026-12-22 05:20:00; nonstop; 435 minutes. Local airport times.
  • Lufthansa LH422: FRA 2026-12-24 11:10:00 → BOS 2026-12-24 13:45:00; nonstop; 515 minutes. Local airport times.

2026-12-21 → 2026-12-24 · $999.00

  • FI FI630 / FI520: BOS 2026-12-21 19:50:00 → FRA 2026-12-22 12:10:00; 1 stop(s) via KEF; 620 minutes. Local airport times.
    • FI630: BOS 2026-12-21 19:50:00 → KEF 2026-12-22 06:05:00; layover at KEF: 80 minutes.
    • FI520: KEF 2026-12-22 07:25:00 → FRA 2026-12-22 12:10:00.
  • Lufthansa LH422: FRA 2026-12-24 11:10:00 → BOS 2026-12-24 13:45:00; nonstop; 515 minutes. Local airport times.

2026-12-21 → 2026-12-24 · $1012.50

  • British Airways BA212 / BA900: BOS 2026-12-21 18:45:00 → FRA 2026-12-22 10:25:00; 1 stop(s) via LHR; 580 minutes. Local airport times.
    • BA212: BOS 2026-12-21 18:45:00 → LHR 2026-12-22 06:25:00; layover at LHR: 80 minutes.
    • BA900: LHR 2026-12-22 07:45:00 → FRA 2026-12-22 10:25:00.
  • British Airways BA903 / BA239: FRA 2026-12-24 16:40:00 → BOS 2026-12-24 21:50:00; 1 stop(s) via LHR; 670 minutes. Local airport times.
    • BA903: FRA 2026-12-24 16:40:00 → LHR 2026-12-24 17:25:00; layover at LHR: 105 minutes.
    • BA239: LHR 2026-12-24 19:10:00 → BOS 2026-12-24 21:50:00.

2026-12-21 → 2026-12-24 · $1026.00

  • KLM Royal Dutch Airlines KL618 / KL1819: BOS 2026-12-21 20:55:00 → FRA 2026-12-22 13:40:00; 1 stop(s) via AMS; 645 minutes. Local airport times.
    • KL618: BOS 2026-12-21 20:55:00 → AMS 2026-12-22 09:45:00; layover at AMS: 170 minutes.
    • KL1819: AMS 2026-12-22 12:35:00 → FRA 2026-12-22 13:40:00.
  • KLM Royal Dutch Airlines KL1820 / KL617: FRA 2026-12-24 14:15:00 → BOS 2026-12-24 19:01:00; 1 stop(s) via AMS; 646 minutes. Local airport times.
    • KL1820: FRA 2026-12-24 14:15:00 → AMS 2026-12-24 15:30:00; layover at AMS: 100 minutes.
    • KL617: AMS 2026-12-24 17:10:00 → BOS 2026-12-24 19:01:00.

2026-12-21 → 2026-12-24 · $1134.00

  • Swiss International Air Lines LX53 / LH1189: BOS 2026-12-21 21:50:00 → FRA 2026-12-22 14:05:00; 1 stop(s) via ZRH; 615 minutes. Local airport times.
    • LX53: BOS 2026-12-21 21:50:00 → ZRH 2026-12-22 11:10:00; layover at ZRH: 115 minutes.
    • LH1189: ZRH 2026-12-22 13:05:00 → FRA 2026-12-22 14:05:00.
  • Lufthansa LH422: FRA 2026-12-24 11:10:00 → BOS 2026-12-24 13:45:00; nonstop; 515 minutes. Local airport times.

2026-12-21 → 2026-12-24 · $1140.75

  • Delta Air Lines DL256 / KL1817: BOS 2026-12-21 19:25:00 → FRA 2026-12-22 11:10:00; 1 stop(s) via AMS; 585 minutes. Local airport times.
    • DL256: BOS 2026-12-21 19:25:00 → AMS 2026-12-22 08:15:00; layover at AMS: 100 minutes.
    • KL1817: AMS 2026-12-22 09:55:00 → FRA 2026-12-22 11:10:00.
  • Lufthansa LH422: FRA 2026-12-24 11:10:00 → BOS 2026-12-24 13:45:00; nonstop; 515 minutes. Local airport times.

2026-12-21 → 2026-12-24 · $1120.50

  • Lufthansa LH425 / LH103: BOS 2026-12-21 20:40:00 → FRA 2026-12-22 13:00:00; 1 stop(s) via MUC; 620 minutes. Local airport times.
    • LH425: BOS 2026-12-21 20:40:00 → MUC 2026-12-22 09:50:00; layover at MUC: 130 minutes.
    • LH103: MUC 2026-12-22 12:00:00 → FRA 2026-12-22 13:00:00.
  • Lufthansa LH422: FRA 2026-12-24 11:10:00 → BOS 2026-12-24 13:45:00; nonstop; 515 minutes. Local airport times.

More dates for this route