Train and Fly
2 legs, changing in Frankfurt.
- Time
- 4h 55m to 7h 7m
- Changes
- 1
- CO2e
- ~128 kg
- Fare band
- ££
- Fastest
- T
Train Karlsruhe to Frankfurt
56m to 1h 52m · 127 km · DB Fernverkehr (Codesharing), DB Fernverkehr AG, DB Regio AG Mitte Region Hessen, DB Regio AG Mitte Region Südwest, Flixtrain, ÖBB · runs through without a change; times are published per stop
Observed · Indicative · last verified 19 October 2026 · about 5 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 - F
Flight Frankfurt to Billund
1h 19m to 1h 35m · 626 km · scheduled airlines · direct services operate
Airports: Frankfurt Airport to Billund Airport.
- Documents: Denmark has run temporary border control on its internal land and sea border with Germany since 4 January 2016; carry travel identification, see source. Source
- 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
Access, airport and connection time counted in the total: 2h 40m to 3h 40m. Derived by the engine from its own models. The time to reach a station or terminal is a typical figure, not a measured one.