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RFD to BLL: distance & flight time
Rockford (Chicago Rockford International Airport) → Billund (Billund Airport)
4,167 mi
6,706 km · 3,621 nm
8h 38m
estimated nonstop flight time
+7h
time difference · heading northeast
See live RFD→BLL fares Phone-only fares on this route — call free
Flight time details
4,167 miles nonstop takes roughly 8h 38m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 7-hour time gain when reading arrival times on your ticket.
The two airports
- RFD — Chicago Rockford International Airport · Rockford, United States
- BLL — Billund Airport · Billund, Denmark
Distances are great-circle ("as the crow flies") — the same basis airlines use for frequent-flyer miles.
Alternate airports can cut this fare
Flying from or into a nearby airport is the #1 trick our agents use to beat online prices. Call and we'll compare every combination on one call.
Near RFD
Near BLL
- EBJ · Esbjerg Airport28 mi away
- STA · Stauning Airport35 mi away
- SKS · Skrydstrup Air Base36 mi away
- KRP · Karup Airport39 mi away
Frequently asked questions
How far is RFD from BLL?
The flight distance from Rockford (RFD) to Billund (BLL) is 4,167 miles (6,706 km, 3,621 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from RFD to BLL?
A nonstop flight takes about 8h 38m gate to gate. Actual time varies with winds, routing and season — eastbound transatlantic flights, for example, are usually faster than the return.
What is the time difference between Rockford and Billund?
Billund is 7 hours ahead of Rockford.
What is the cheapest way to fly from RFD to BLL?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on RFD–BLL that never appear on search engines, with no booking fees.