Fly and Train
3 legs, changing in Frankfurt and Leipzig.
- Time
- 7h 49m to 12h 20m
- Changes
- 2
- CO2e
- ~139 kg
- Fare band
- ££
- Risky connection
- Fastest
- Risky connection at Leipzig: 2h 17m window, 30m buffer. Derived by the engine from the spread of the leg before and the change time it counted.
- F
Flight Billund to Frankfurt
1h 19m to 1h 35m · 626 km · scheduled airlines · direct services operate
Airports: Billund Airport to Frankfurt Airport.
- Documents: A Danish citizen must always bring a valid passport when travelling outside the Nordic countries; see source. Source
- Documents: Denmark taking part in Schengen does not change the rules for when a Danish citizen must bring a passport; see source. Source
Estimated · Indicative · last verified 9 September 2026 · about 123 kg CO2e
How we know this
- Source
- Pro Travel Net curated network, version 1
- Kind
- estimate
- Checked
- 9 September 2026
- Coverage
- United Kingdom, Ireland, Denmark, the Nordics, central and western Europe, Türkiye, the Gulf and Pakistan, valid from 9 September 2026
- Figure
- estimated: a model from distance or a hand estimate where nothing is published
- T
Train Frankfurt to Leipzig
2h 38m to 4h 55m · 302 km · DB Fernverkehr AG, DB Fernverkehr (Codesharing), ÖBB · runs through without a change; times are published per stop
Observed · Indicative · last verified 19 October 2026 · about 12 kg CO2e
How we know this
- Source
- GTFS.DE combined national GTFS dataset for Germany
- Kind
- open data
- Checked
- 19 October 2026
- Coverage
- Germany, long distance and regional rail and coach between the German places the registry holds, valid from 16 September 2026
- Figure
- observed: read from a dated feed
Booked on the operator’s own siteThis does not look right - T
Train Leipzig to Chemnitz
42m to 50m · 71 km · Mitteldeutsche Regiobahn, DB Regio AG Südost · runs through without a change; times are published per stop
Observed · Indicative · last verified 19 October 2026 · about 4 kg CO2e
How we know this
- Source
- GTFS.DE combined national GTFS dataset for Germany
- Kind
- open data
- Checked
- 19 October 2026
- Coverage
- Germany, long distance and regional rail and coach between the German places the registry holds, valid from 16 September 2026
- Figure
- observed: read from a dated feed
Booked on the operator’s own siteThis does not look right
Access, airport and connection time counted in the total: 3h 10m to 5h. Derived by the engine from its own models. The time to reach a station or terminal is a typical figure, not a measured one.